CN113787329A - Clamp for processing sealed pipe orifice error-proofing boss of engine pipe fitting - Google Patents
Clamp for processing sealed pipe orifice error-proofing boss of engine pipe fitting Download PDFInfo
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- CN113787329A CN113787329A CN202111002552.2A CN202111002552A CN113787329A CN 113787329 A CN113787329 A CN 113787329A CN 202111002552 A CN202111002552 A CN 202111002552A CN 113787329 A CN113787329 A CN 113787329A
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- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000009471 action Effects 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 30
- 238000003754 machining Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/08—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for attachment of work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a clamp for processing a sealed pipe orifice error-proof boss by an engine pipe fitting. The pipe orifice clamping and positioning unit comprises a positioning block and a clamping block, and the clamping block can be parallelly close to or far away from the pipe orifice under the action of a power mechanism to clamp the pipe orifice. The positioning block is provided with a first U-shaped hole, and the first U-shaped hole is provided with a U-shaped groove matched with the upper end surface and the outer peripheral surface of the sealed pipe opening of the engine pipe fitting, so that the correct positioning of the pipe fitting is ensured. The U-shaped groove is rectangular in cross section along the radial direction, a second U-shaped hole is formed in the clamping block, a U-shaped inclined surface matched with the lower inclined surface of the sealed pipe opening of the engine pipe fitting is formed in the second U-shaped hole, and the U-shaped groove and the U-shaped inclined surface are matched to clamp the sealed pipe opening of the engine pipe fitting. The invention ensures the stability and the positioning accuracy of the processing clamp and well ensures the processing quality of the error-proof boss.
Description
Technical Field
The invention discloses a clamp for machining a sealed pipe orifice of an engine pipe fitting, belongs to the technical field of machining and manufacturing of sealed pipe orifices of engine pipe fittings, and particularly discloses a clamp for machining a mistake-proofing boss of a sealed pipe orifice of an engine pipe fitting.
Background
At present, the number of pipe parts on an automobile engine is more than ten, in order to ensure the correct positions of two pipe orifices in assembly, the product design adopts a mode of adding a mistake-proof boss on a sealed pipe orifice at present, and the mode of casting an arrow on a pipe body to represent an assembly position in the prior art is gradually cancelled. Thus, the lug boss is embedded into the part matched with the lug boss during assembly, and the purpose of error prevention is really achieved. But the problems that the processing manufacturability of the error-proof boss of the sealing pipe opening is poor, and the quality of the error-proof boss processed on the processing center equipment is not easy to ensure. Previous machining fixture solutions typically used the seal nozzle outer diameter as the primary positioning. However, the length of the outer diameter of the pipe orifice is short, 4-5mm, the positioning reliability is poor, and the conditions of part clamping deformation, part torsion dislocation and the like are frequently generated in the machining process, so that the process capability CPK (process capability index) is less than 1.0.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a clamp for processing a mistake-proofing boss on a sealing pipe opening of an engine pipe fitting, which ensures the stability and positioning accuracy of the processing clamp and well ensures the processing quality of the mistake-proofing boss.
The invention discloses a clamp for processing a sealed pipe orifice error-proofing boss of an engine pipe fitting, which is used for clamping and positioning the sealed pipe orifice part of the engine pipe fitting, wherein the projection shape of the sealed pipe orifice part of the engine pipe fitting along the central axis of the pipe orifice is a circular ring shape, the cross section shape of the sealed pipe orifice part of the engine pipe fitting along the radial direction is a right trapezoid, the clamp comprises a pipe orifice clamping unit for clamping and positioning the sealed pipe orifice part of the engine pipe fitting and a pipe body positioning unit for positioning a pipe body, the pipe orifice clamping unit comprises a positioning block and a clamping block, the positioning block and the clamping block can be parallelly close to or far away from each other under the action of a power mechanism, a first U-shaped hole is arranged on the positioning block, a U-shaped groove used for being matched with the upper end surface and the outer peripheral surface of the sealed pipe orifice part of the engine pipe fitting is arranged on the first U-shaped hole, and the cross section shape of the U-shaped groove along the radial direction is a rectangle, the clamping block is provided with a second U-shaped hole, the second U-shaped hole is provided with a U-shaped inclined plane matched with the lower inclined plane of the sealed pipe orifice of the engine pipe fitting, and the U-shaped groove and the U-shaped inclined plane are matched to clamp the sealed pipe orifice of the engine pipe fitting.
In a preferred embodiment of the invention, the depth of the U-shaped groove along the axial direction of the engine pipe fitting sealing pipe orifice is smaller than the width of the outer peripheral surface of the engine pipe fitting sealing pipe orifice, so that the clamping block can clamp a workpiece conveniently.
In a preferred embodiment of the present invention, the power mechanism includes a linear cylinder and a guide rod guide mechanism, the linear cylinder and the guide rod guide mechanism are arranged in parallel, and an axis of the guide rod guide mechanism is arranged perpendicular to the positioning block and the clamping block.
In a preferred embodiment of the present invention, the number of the linear cylinders is two, the number of the guide rod guide sleeve mechanisms is two, the two linear cylinders are symmetrically arranged, and the two guide rod guide sleeve mechanisms are symmetrically arranged.
In a preferred embodiment of the invention, the clamping device comprises a base, wherein the positioning block is fixedly connected to the base, and the clamping block is connected in parallel below the positioning block through the power mechanism.
In a preferred embodiment of the present invention, the pipe positioning unit includes a supporting block disposed below the first U-shaped hole, and a positioning block disposed beside the supporting block.
In a preferred embodiment of the present invention, the support block is L-shaped, and a support inclined surface matched with the position of the sealing pipe orifice of the engine pipe fitting is arranged on an upper end surface of the L-shaped support block.
The invention has the beneficial effects that: the utility model has simple structure, accurate positioning, stable processing capacity of processing parts (CPK is more than or equal to 1.33), and positioning by utilizing the spigot surface of the sealed pipe orifice part of the engine pipe fitting, thereby ensuring the stability and positioning accuracy of the processing clamp and well ensuring the processing quality of the error-proof boss; furthermore, the two short-range cylinders are adopted for clamping simultaneously, so that the part machining efficiency and the clamping stability are greatly improved; furthermore, the engine pipe fitting sealing pipe is prevented from rotating in the process of machining the error-proof boss through the arrangement of the pipe body positioning unit.
Drawings
FIG. 1 is a schematic view of an engine pipe fitting sealing pipe of the clamp for processing a sealed pipe orifice error-proof boss by using an engine pipe fitting;
FIG. 2 is a front view of an engine pipe fitting sealing pipe of the present invention used in a jig for machining a boss on a sealing pipe orifice;
FIG. 3 is a schematic view of the sealing orifice part of the engine pipe fitting of the jig for processing the error-proof boss of the sealing orifice of the engine pipe fitting of the invention;
FIG. 4 is a sectional view of the sealing nozzle part of the engine pipe fitting of the jig for processing the error-proofing boss of the sealing nozzle by the engine pipe fitting of the invention;
FIG. 5 is a front view of a sealing nozzle part of an engine pipe of the jig for processing a boss for preventing the sealing nozzle from being mistakenly machined by the engine pipe of the invention;
FIG. 6 is a schematic view of a jig for processing a sealed nozzle error-proofing boss of an engine pipe fitting according to the present invention;
FIG. 7 is a front view of a clamp for processing a sealed pipe orifice error-proof boss of an engine pipe fitting;
FIG. 8 is a side view of a clamp for machining a sealed nozzle mistake-proof boss of an engine pipe fitting according to the invention;
FIG. 9 is a partial view of a clamp for machining a sealed nozzle mistake-proof boss of an engine pipe fitting according to the present invention;
FIG. 10 is a schematic view of a clamping state of the clamp for processing the error-proof boss of the sealing pipe orifice of the engine pipe fitting;
in the figure: 1-positioning a block; 2-a clamping block; 3, a power mechanism; 4-sealing the pipe orifice part of the engine pipe fitting; 5-a base; 6-a supporting block; 7-positioning blocks; 11-a first U-shaped aperture; 12-U-shaped slots; 21-a second U-shaped hole; 22-a U-shaped bevel; 31-a linear cylinder; 32-guide bar guide sleeve mechanism; 41-mistake proofing boss; 42-upper end face; 43-outer peripheral surface; 44-lower slope; 61-supporting the ramp.
Detailed Description
The invention will now be described in further detail, including the preferred embodiments, with reference to the accompanying drawings and by way of illustration of some alternative embodiments of the invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Further, in the present application, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The invention discloses a clamp for processing a sealed pipe orifice error-proofing boss of an engine pipe fitting, which is used for clamping and positioning a sealed pipe orifice part 4 of the engine pipe fitting, wherein a positioning datum comprises a main positioning surface A (a spigot of the sealed pipe orifice part 4 of the engine pipe fitting), a first auxiliary positioning surface B (an excircle of the sealed pipe orifice part 4 of the engine pipe fitting) and a second auxiliary positioning surface (an outer wall of a pipe body), the projection shape of the sealed pipe orifice part 4 of the engine pipe fitting along the central axis of the pipe orifice is annular, the cross section shape of the sealed pipe orifice part 4 of the engine pipe fitting along the radial direction is right trapezoid, the clamp comprises a pipe orifice clamping unit for clamping and positioning the sealed pipe orifice part 4 of the engine pipe fitting and a pipe body positioning unit for positioning the pipe body, the pipe orifice clamping unit comprises a positioning block 1 and a clamping block 2, and the positioning block 1 and the clamping block 2 can be close to or far away from each other in parallel under the action of a power mechanism 3, the positioning block 1 is provided with a first U-shaped hole 11, the first U-shaped hole 11 is provided with a U-shaped groove 12 which is used for being matched with the upper end face 42 and the peripheral face 43 of the sealed pipe opening part 4 of the engine pipe fitting, the radial section of the U-shaped groove is rectangular, the clamping block 2 is provided with a second U-shaped hole 21, the second U-shaped hole 21 is provided with a U-shaped inclined face 22 which is used for being matched with the lower inclined face 44 of the sealed pipe opening part 4 of the engine pipe fitting, and the U-shaped groove 12 and the U-shaped inclined face 22 are matched for clamping the sealed pipe opening part 4 of the engine pipe fitting.
Preferably, the depth of the U-shaped groove 12 in the axial direction of the sealed pipe opening of the engine pipe fitting is smaller than the width of the outer peripheral surface of the sealed pipe opening part 4 of the engine pipe fitting, so that interference can be avoided, clamping action is guaranteed, the U-shaped inclined surface 22 is prevented from being in contact with the lower inclined surface 44, and the inclined surface is prevented from being attached.
Preferably, the power mechanism 3 includes a linear cylinder 31 and a guide rod guide sleeve mechanism 32, the linear cylinder 31 and the guide rod guide sleeve mechanism 32 are arranged in parallel, the axis of the guide rod guide sleeve mechanism 32 is arranged perpendicular to the positioning block 1 and the clamping block 2, the linear cylinder 31 and the guide rod guide sleeve mechanism 32 are both arranged along the Z-axis direction, the cylinder body end of the linear cylinder 31 is fixedly connected with the base 5, the piston rod end of the linear cylinder 31 is fixedly connected with the clamping block 2, the guide sleeve of the guide rod guide sleeve mechanism 32 is fixedly connected with the positioning block 1, the positioning block 1 is fixedly connected with the base 5, the guide rod of the guide sleeve of the guide rod guide sleeve mechanism 32 is fixedly connected with the clamping block 2, the clamping block 2 is pushed by the linear cylinder 31, and the guide rod guide sleeve mechanism 32 can be close to the positioning block 1 in parallel or be far away from the positioning block 1.
Preferably, the linear cylinders 31 include two, the guide bar guide mechanisms 32 include two, the two linear cylinders 31 are symmetrically arranged with respect to the YOZ plane, and the two guide bar guide mechanisms 32 are symmetrically arranged with respect to the YOZ plane.
Preferably, the device comprises a base 5, a positioning block 1 is fixedly connected to the base 5, and a clamping block 2 is connected in parallel below the positioning block 1 through a power mechanism 3.
Preferably, the pipe positioning unit includes a supporting block 6 and a positioning block 7, the supporting block 6 is disposed below the first U-shaped hole 11, and the positioning block 7 is disposed beside the supporting block 6 (disposed back and forth along the Y-direction).
Preferably, the supporting block 6 is L-shaped, and a supporting inclined surface 61 matched with the engine pipe fitting sealing pipe orifice part 4 is arranged on the upper end surface of the L-shaped supporting block 6.
The invention optimizes the structure of the clamp for processing the sealed pipe orifice mistake-proofing boss of the engine pipe fitting and solves the problem of unstable clamp in the original processing process. The processing quality and efficiency of the sealing pipe orifice of the engine pipe fitting are greatly improved;
1. the invention changes the positioning mode of the error-proof boss at the sealing pipe orifice part 4 of the engine pipe fitting, takes the spigot surface of the sealing pipe orifice as the main positioning surface and replaces the traditional method of taking the outer diameter of the sealing pipe orifice as the positioning surface. Specifically, the method comprises the following steps: the positioning of the pipe orifice spigot limits 3 degrees of freedom of the workpiece (Z-direction movement, X, Y two-direction rotation), the outer diameter of the side surface limits 2 degrees of freedom of the workpiece (X, Y two-direction movement), and the far pipe wall limits 1 degree of freedom of the workpiece (Z-direction rotation).
2. In order to ensure that the spigot surface of the part is effectively attached to the positioning surface of the clamp, the clamp is guided by a guide pillar in design.
3. And the air cylinder is adopted to push and lift the clamping block upwards to clamp the part.
The invention provides a better solution for processing the error-proof bosses of all engine pipe fitting parts, and the processing quality and the production efficiency of the engine pipe fitting sealing pipe are greatly improved.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and any modification, combination, replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.
Claims (7)
1. The utility model provides an anchor clamps that is used for sealed mouth of pipe mistake proofing boss of engine pipe fitting processing which characterized in that: it is used for pressing from both sides tightly, the location to engine pipe fitting seal pipe mouth position (4), engine pipe fitting seal pipe mouth position (4) are the ring shape along the projection shape of mouth of pipe axis, engine pipe fitting seal pipe mouth position (4) are right trapezoid along radial cross sectional shape, and anchor clamps are including being used for pressing from both sides tightly, the location the mouth of pipe clamping unit of engine pipe fitting seal pipe mouth position (4) and the body positioning unit who is used for fixing a position the body, mouth of pipe clamping unit is including locating piece (1) and clamp tight piece (2), locating piece (1) with press from both sides tight piece (2) and can be close to or keep away from in parallel under power unit (3) effect, set up first U-shaped hole (11) on locating piece (1), be provided with on first U-shaped hole (11) be used for with the up end and outer peripheral face complex U-shaped groove (12) of engine pipe fitting seal pipe mouth position (4), the radial cross sectional shape of U-shaped groove is the rectangle, press from both sides and set up second U-shaped hole (21) again on tight piece (2), set up on second U-shaped hole (21) and be used for with the lower inclined plane complex U-shaped inclined plane (22) of the sealed mouth of pipe position of engine pipe spare (4), U-shaped groove (12) with U-shaped inclined plane (22) cooperation is pressed from both sides tightly the sealed mouth of pipe position of engine pipe spare (4).
2. The clamp for the error-proofing boss of the engine pipe fitting machining sealing pipe orifice as claimed in claim 1, is characterized in that: the depth of the U-shaped groove (12) along the axial direction of the sealed pipe orifice of the engine pipe fitting is smaller than the width of the peripheral surface of the sealed pipe orifice part (4) of the engine pipe fitting. The clamping action of the clamping block (2) is convenient to realize.
3. The clamp for the error-proofing boss of the engine pipe fitting machining sealing pipe orifice as claimed in claim 1, is characterized in that: the power mechanism (3) comprises a linear cylinder (31) and a guide rod guide sleeve mechanism (32), the linear cylinder (31) and the guide rod guide sleeve mechanism (32) are arranged in parallel, and the axis of the guide rod guide sleeve mechanism (32) is perpendicular to the positioning block (1) and the clamping block (2).
4. The clamp for the error-proofing boss of the engine pipe fitting machining sealing pipe orifice as claimed in claim 1, is characterized in that: the two linear cylinders (31) are arranged, the two guide rod guide sleeve mechanisms (32) are arranged symmetrically, and the two guide rod guide sleeve mechanisms (32) are arranged symmetrically.
5. The clamp for the error-proofing boss of the engine pipe fitting machining sealing pipe orifice as claimed in claim 1, is characterized in that: the clamping device is characterized by comprising a base (5), wherein the positioning block (1) is fixedly connected to the base (5), and the clamping block (2) is connected to the lower portion of the positioning block (1) in parallel through the power mechanism (3).
6. The clamp for the error-proofing boss of the engine pipe fitting machining sealing pipe orifice as claimed in claim 1, is characterized in that: the pipe body positioning unit comprises a supporting block (6) and a positioning block (7), the supporting block (6) is arranged below the first U-shaped hole (11), and the positioning block (7) is arranged beside the supporting block (6).
7. The clamp for the error-proofing boss of the engine pipe fitting machining sealing pipe orifice as claimed in claim 6, is characterized in that: the supporting block (6) is L-shaped, and a supporting inclined plane (61) matched with the sealing pipe orifice part (4) of the engine pipe fitting is arranged on the upper end face of the L-shaped supporting block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002552.2A CN113787329B (en) | 2021-08-30 | 2021-08-30 | Clamp for processing sealing pipe orifice error-proof boss of engine pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002552.2A CN113787329B (en) | 2021-08-30 | 2021-08-30 | Clamp for processing sealing pipe orifice error-proof boss of engine pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113787329A true CN113787329A (en) | 2021-12-14 |
| CN113787329B CN113787329B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111002552.2A Active CN113787329B (en) | 2021-08-30 | 2021-08-30 | Clamp for processing sealing pipe orifice error-proof boss of engine pipe fitting |
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| CN (1) | CN113787329B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11241791A (en) * | 1997-12-25 | 1999-09-07 | World Kogyo Kk | Adjusting metal fitting |
| CN204397403U (en) * | 2015-01-29 | 2015-06-17 | 格朗富（苏州）集团有限公司 | A kind of clamp for machining of elbow' upper flange |
| CN105773518A (en) * | 2016-04-19 | 2016-07-20 | 江西江铃底盘股份有限公司 | Press-fitting system and method for main speed reducer shell and flange head |
| CN107186505A (en) * | 2017-06-18 | 2017-09-22 | 禹州市灵龙渔机泵业有限公司 | A kind of floating support device |
| CN208514127U (en) * | 2018-05-09 | 2019-02-19 | 安徽机电职业技术学院 | The Special milling machine clamp of pneumatic pinch |
| CN210649631U (en) * | 2019-10-15 | 2020-06-02 | 江阴市同方机械配件制造有限公司 | Fixing device for processing exhaust elbow of diesel engine |
-
2021
- 2021-08-30 CN CN202111002552.2A patent/CN113787329B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11241791A (en) * | 1997-12-25 | 1999-09-07 | World Kogyo Kk | Adjusting metal fitting |
| CN204397403U (en) * | 2015-01-29 | 2015-06-17 | 格朗富（苏州）集团有限公司 | A kind of clamp for machining of elbow' upper flange |
| CN105773518A (en) * | 2016-04-19 | 2016-07-20 | 江西江铃底盘股份有限公司 | Press-fitting system and method for main speed reducer shell and flange head |
| CN107186505A (en) * | 2017-06-18 | 2017-09-22 | 禹州市灵龙渔机泵业有限公司 | A kind of floating support device |
| CN208514127U (en) * | 2018-05-09 | 2019-02-19 | 安徽机电职业技术学院 | The Special milling machine clamp of pneumatic pinch |
| CN210649631U (en) * | 2019-10-15 | 2020-06-02 | 江阴市同方机械配件制造有限公司 | Fixing device for processing exhaust elbow of diesel engine |
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| Publication number | Publication date |
|---|---|
| CN113787329B (en) | 2024-03-29 |
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