CN116493915A - Automatic press-fitting part pin shaft tool and press-fitting method thereof - Google Patents
Automatic press-fitting part pin shaft tool and press-fitting method thereof Download PDFInfo
- Publication number
- CN116493915A CN116493915A CN202310659174.8A CN202310659174A CN116493915A CN 116493915 A CN116493915 A CN 116493915A CN 202310659174 A CN202310659174 A CN 202310659174A CN 116493915 A CN116493915 A CN 116493915A
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- Prior art keywords
- press
- fixing seat
- pin
- pin shaft
- guide hole
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000007906 compression Methods 0.000 claims description 23
- 230000006835 compression Effects 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010923 batch production Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Classifications
-
- 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
- B23P19/02—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 connecting objects by press fit or for detaching same
- B23P19/027—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 connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention discloses an automatic part pin shaft press-fitting tool and a press-fitting method thereof. This automatic pressure equipment part round pin axle frock includes fixing base, lower fixing base, depression bar and actuating mechanism, the depression bar wears to locate on the fixing base and rather than sliding connection, goes up fixing base and lower fixing base and set up relatively and be equipped with the interval between the two, is provided with the constant head tank that is used for placing the part and is used for placing the pin hole of putting of waiting to install the round pin axle on the fixing base down, and the constant head tank is located and puts the pinhole below, and actuating mechanism is connected with the depression bar so that it will put the round pin axle in the pinhole and press on the part of constant head tank for last fixing base removal with the drive. The automatic press-fitting part pin shaft tool has the advantages of simple structure, stable and reliable operation, high assembly precision and easiness in realization.
Description
Technical Field
The invention relates to the technical field of tools, in particular to an automatic press-fitting part pin shaft tool and a press-fitting method thereof.
Background
The press-fit pin is a conventional processing method of parts, pin holes are reserved on some nonstandard small parts, and pin shafts are required to be installed on the pin holes and fixed. For non-standard parts, because the shapes are different, manual knocking or pressing by an oil press is mostly used for matching with a simple clamp.
Manual knocking; the manual knocking can be performed without a clamp, and the pin shaft can be pressed by adopting the method for very few parts.
Secondly, an oil press is matched with a simple clamp for press fitting; still need the manual work to go to find accurate location, use the oil press clamp plate to cooperate simple and easy frock direct press pin, this kind of scheme need not the manual pressure of beating, can avoid the uneven problem of power, but assembly location link is still loaded down with trivial details and unstable, and oil press pin's efficiency is also low, inadaptation mass production.
Disclosure of Invention
The invention mainly aims to provide an automatic press-fitting part pin shaft tool and a press-fitting method thereof, which aim to improve the efficiency of press-fitting part pin holes and facilitate mass production.
In order to achieve the aim, the invention provides an automatic pin shaft fixture for press fitting parts, which comprises an upper fixing seat, a lower fixing seat, a compression bar and a driving mechanism, wherein,
the compression bar is arranged on the upper fixing seat in a penetrating mode and is in sliding connection with the upper fixing seat, the upper fixing seat and the lower fixing seat are arranged oppositely, a distance is reserved between the upper fixing seat and the lower fixing seat, a positioning groove for placing a part and a pin hole for placing a pin shaft to be installed are formed in the lower fixing seat, the positioning groove is located below the pin hole, and the driving mechanism is connected with the compression bar to drive the compression bar to move relative to the upper fixing seat so as to press the pin shaft in the pin hole to the part of the positioning groove.
Preferably, the compression bar comprises a guide cylinder and a push rod detachably connected with the head of the compression bar, the diameter of the push rod is smaller than that of the guide cylinder, and the push rod can be inserted into the pin releasing hole to press the pin shaft.
Preferably, the compression bar further comprises a cushion block arranged on the outer side wall of the guide cylinder, and a clamping groove for installing the cushion block is formed in the outer side wall of the guide cylinder.
Preferably, the upper fixing seat is provided with a first guide hole and a second guide hole which is positioned below the first guide hole and is coaxially arranged, and the diameter of the second guide hole is smaller than that of the first guide hole to form a step surface so as to limit the maximum displacement of the downward movement of the compression bar.
Preferably, a third guide hole which is positioned above the first guide hole and is coaxially arranged with the first guide hole is formed in the upper fixing seat, and the diameter of the third guide hole is smaller than that of the second guide hole.
Preferably, the upper fixing seat comprises a top plate, a frame plate and an upper base plate which are detachably connected in sequence from top to bottom, the first guide hole is positioned on the frame plate, the second guide hole is positioned on the upper base plate, and the third guide hole is positioned on the top plate.
Preferably, the lower fixing seat comprises a middle plate, a positioning plate, a fixing plate, a lower base plate and a foot pad which are sequentially and detachably connected from top to bottom, the positioning plate is provided with the positioning groove, and the middle plate is provided with the pin releasing hole.
Preferably, the side surface of the frame plate is fixedly connected with the side surface of the cushion angle.
Preferably, the drive mechanism is a pneumatic drive mechanism.
The invention further provides a press-fitting method based on the automatic press-fitting part pin shaft tool, which comprises the following steps of:
placing the part to be pressed with the pin shaft in a positioning groove of the lower fixing seat, and placing the pin shaft to be installed in a pin releasing hole;
the pneumatic driving mechanism drives the compression bar to move downwards relative to the upper fixing seat, and the pin shaft in the pin releasing hole is pressed downwards, so that the pin shaft and the part are fixed;
after the press fitting is completed, the pneumatic driving mechanism drives the pressing rod to move upwards relative to the upper fixing seat so as to reset.
The automatic press-fitting part pin shaft tool provided by the invention has the following beneficial effects:
1. the positioning groove and the pin releasing hole are formed in the lower fixing seat, so that manual alignment is not needed, and the difficulty that the part and the pin in the pin pressing shaft are difficult to position in an initial stage is solved;
2. the driving mechanism is used for providing the power of the pin pressing shaft, so that the pin pressing shaft is high in efficiency, simple and easy to operate, and suitable for mass production of parts;
3. because the parts and the pin shafts are separated and positioned, the tool not only can press the common pins, but also can press the special-shaped pins such as cotter pins;
4. the automatic press-fitting part pin shaft tool has the advantages of simple structure, stable and reliable operation, high assembly precision and easiness in realization.
Drawings
FIG. 1 is a schematic view of a part with pins installed;
FIG. 2 is a schematic view of a preferred embodiment of an automatic press-fit part pin tooling of the present invention;
FIG. 3a is a schematic diagram of a front view of an intermediate plate in an automatic press-fit part pin tooling of the present invention;
FIG. 3b is a schematic side view of the intermediate plate in the automatic press-fit part pin tooling of the present invention;
fig. 4a is a schematic diagram of a front view structure of a positioning plate in the automatic press-fitting part pin tool of the present invention;
FIG. 4b is a schematic side view of a locating plate in the automatic press-fit part pin tooling of the present invention;
FIG. 5a is a schematic structural view of a guide cylinder in the automatic press-fit part pin tooling of the present invention;
FIG. 5b is a schematic structural view of a mandrel in the automatic press-fit part pin tooling of the present invention;
FIG. 5c is a schematic structural view of two spacers in the automatic press-fit part pin tooling of the present invention;
fig. 5d is a schematic structural diagram of the automatic press-fitting part pin tool according to the present invention after the press rod is assembled.
In the figure, the 1-frame plate, the 2-upper backing plate, the 3-middle plate, the 31-pin hole, the 4-positioning plate, the 5-fixing plate, the 6-lower backing plate, the 7-pad foot, the 8-compression bar, the 81-guide cylinder, the 82-ejector rod, the 83-cushion block, the 9-top plate, A, B, C and D are all screws, and E is a pin.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It should be noted that, in the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention provides an automatic pin shaft fixture for press-fitting parts.
Referring to fig. 1 to 2, in the preferred embodiment, an automatic press-fitting part pin fixture includes an upper fixing base, a lower fixing base and a pressing rod 8, wherein,
the compression bar 8 is arranged on the upper fixing seat in a penetrating manner and is in sliding connection with the upper fixing seat, the upper fixing seat and the lower fixing seat are oppositely arranged, a distance is arranged between the upper fixing seat and the lower fixing seat, a positioning groove for placing a part and a pin releasing hole 31 for placing a pin shaft to be installed are arranged on the lower fixing seat, the positioning groove is positioned below the pin releasing hole 31, and a driving mechanism is connected with the compression bar 8 to drive the compression bar to move relative to the upper fixing seat so as to press the pin shaft in the pin releasing hole 31 on the part of the positioning groove.
Further, referring to fig. 5a to 5d, the pressing lever 8 includes a guide cylinder 81 and a push rod 82 detachably connected to a head thereof, the push rod 82 having a diameter smaller than that of the guide cylinder 81, and the push rod 82 being inserted into the pin release hole 31 to press the pin shaft. The push rod 82 may be screwed with the guide cylinder 81, thereby facilitating the installation and removal of the push rod 82.
Through setting up the ejector pin 82 that can dismantle the connection, after ejector pin 82 fracture (because of damaging easily after the pressure equipment is many times), its dress of changing is also more convenient, can effectively improve machining efficiency, is favorable to batch production. In addition, after the ejector rod 82 is damaged, the guide cylinder 81 does not need to be replaced, and the replacement cost is saved.
Further, referring to fig. 5a to 5d, the compression bar 8 further includes a spacer 83 mounted on the outer sidewall of the guide cylinder 81, and a slot for mounting the spacer 83 is formed on the outer sidewall of the guide cylinder 81. Two clamping grooves can be arranged on the guide cylinder 81. If the long-term processing is carried out, the ejector rod 82 is broken, the cushion block 83 is only required to be pulled out when the assembly is carried out, a new ejector rod 82 is replaced, and the assembly is simple and clear.
Further, the upper fixing seat is provided with a first guide hole and a second guide hole which is positioned below the first guide hole and is coaxially arranged, and the diameter of the second guide hole is smaller than that of the first guide hole to form a step surface so as to limit the maximum displacement of the downward movement of the compression bar 8. The step surface formed by the two guide holes is arranged, so that the maximum displacement of the downward movement of the compression bar 8 is limited, and the parts are prevented from being possibly damaged when the driving mechanism fails.
Further, a third guide hole which is positioned above the first guide hole and is coaxially arranged with the first guide hole is formed in the upper fixing seat, and the diameter of the third guide hole is smaller than that of the second guide hole.
In this embodiment, referring to fig. 2, the upper fixing base includes a top plate 9, a frame plate 1 and an upper backing plate 2 detachably connected in sequence from top to bottom, a first guide hole is located on the frame plate 1, a second guide hole is located on the upper backing plate 2, and a third guide hole is located on the top plate 9. The top plate 9, the frame plate 1 and the upper backing plate 2 can be detachably connected through fasteners.
In this embodiment, referring to fig. 2 to 4b, the lower fixing base includes a middle plate 3, a positioning plate 4, a fixing plate 5, a lower pad 6 and a pad 7 (the 5 can be detachably connected by a fastener), which are detachably connected from top to bottom, the positioning plate 4 is provided with a positioning slot, and the middle plate 3 is provided with a pin releasing hole 31. The side surface of the frame plate 1 is fixedly connected with the side surface of the pad corner. The positioning plate 4 can be milled to form the shape of the part, thereby positioning the part.
Through setting up intermediate plate 3 and locating plate 4 and can dismantle the connection, consequently, can change intermediate plate 3 of suitable thickness according to the pressure equipment demand of different parts.
When the pin shaft is pressed, the pressing depth of the pin shaft can be effectively controlled through the length of the ejector rod 82 in the pressing rod 8 and the thickness of the middle plate 3, and the dimensional stability of the pin shaft pressing part is ensured.
Further, the driving mechanism is a pneumatic driving mechanism (such as a cylinder). Through setting up pneumatic actuating mechanism, compare in manpower and oil press power, the power efficiency of cylinder is higher, and the strength is more stable be convenient for regulate and control simultaneously, is applicable to the batch production part very much.
The working process of the automatic press-fitting part pin shaft tool is as follows.
Firstly, assembling all parts, wherein after the assembly of the tool is completed, the ejector rod 82 can freely enter and exit the pin release hole 31 of the middle plate 3, no jamming exists, and the tool can be used at the moment;
placing the part to be pressed with the pin shaft in a positioning groove of the lower fixing seat, and placing the pin shaft to be installed in the pin releasing hole 31 to perform preliminary positioning on the pin shaft;
the rotary cylinder controls the hand-operated valve, the pneumatic driving mechanism drives the compression bar 8 to move downwards relative to the upper fixing seat, and the pin shaft in the pin release hole 31 is pressed downwards, so that the pin shaft and the part are fixed;
after the press fitting is completed, the pneumatic driving mechanism drives the pressing rod 8 to move upwards relative to the upper fixing seat so as to reset.
The automatic press-fitting part pin shaft tool provided by the embodiment has the following beneficial effects:
1. the positioning groove and the pin releasing hole 31 are formed in the lower fixing seat, so that manual alignment is not needed, and the difficulty that the part and the pin in the pin pressing shaft are difficult to position in an initial stage is solved;
2. the driving mechanism is used for providing the power of the pin pressing shaft, so that the pin pressing shaft is high in efficiency, simple and easy to operate, and suitable for mass production of parts;
3. because the parts and the pin shafts are separated and positioned, the tool not only can press the common pins, but also can press the special-shaped pins such as cotter pins;
4. the automatic press-fitting part pin shaft tool has the advantages of simple structure, stable and reliable operation, high assembly precision and easiness in realization.
The invention further provides a press-fitting method of the automatic press-fitting part pin shaft tool.
In the preferred embodiment, the press-fitting method based on the automatic press-fitting part pin shaft tool comprises the following steps of:
step S10, placing the part of the pin shaft to be pressed into a positioning groove of the lower fixing seat, and placing the pin shaft to be installed into the pin releasing hole 31;
step S20, the pneumatic driving mechanism drives the compression bar 8 to move downwards relative to the upper fixing seat, and the pin shaft in the pin releasing hole 31 is pressed downwards, so that the pin shaft and the part are fixed;
and S30, after the press fitting is completed, the pneumatic driving mechanism drives the pressing rod 8 to move upwards relative to the upper fixing seat so as to reset.
The press-fitting method of the automatic press-fitting part pin shaft tool provided by the embodiment is simple and easy to operate, and compared with manual operation in the prior art, the press-fitting method can greatly improve the press-fitting efficiency, thereby being beneficial to batch production.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but is intended to cover all equivalent structures modifications, direct or indirect application in other related arts, which are included in the scope of the present invention.
Claims (10)
1. An automatic press fitting part pin shaft tool is characterized by comprising an upper fixing seat, a lower fixing seat, a compression bar and a driving mechanism, wherein,
the compression bar is arranged on the upper fixing seat in a penetrating mode and is in sliding connection with the upper fixing seat, the upper fixing seat and the lower fixing seat are arranged oppositely, a distance is reserved between the upper fixing seat and the lower fixing seat, a positioning groove for placing a part and a pin hole for placing a pin shaft to be installed are formed in the lower fixing seat, the positioning groove is located below the pin hole, and the driving mechanism is connected with the compression bar to drive the compression bar to move relative to the upper fixing seat so as to press the pin shaft in the pin hole to the part of the positioning groove.
2. The automatic press-fitting part pin shaft tooling of claim 1, wherein the press rod comprises a guide cylinder and a push rod detachably connected with the head of the guide cylinder, the diameter of the push rod is smaller than that of the guide cylinder, and the push rod can be inserted into the pin releasing hole to press the pin shaft.
3. The automatic press-fitting part pin tooling of claim 1, wherein the press rod further comprises a cushion block arranged on the outer side wall of the guide cylinder, and a clamping groove for installing the cushion block is formed in the outer side wall of the guide cylinder.
4. The automatic press-fitting part pin shaft tooling of claim 1, wherein the upper fixing seat is provided with a first guide hole and a second guide hole which is positioned below the first guide hole and is coaxially arranged, and the diameter of the second guide hole is smaller than that of the first guide hole to form a step surface so as to limit the maximum displacement of the downward movement of the pressing rod.
5. The automatic press-fit part pin shaft tool as set forth in claim 4, wherein the upper fixing seat is provided with a third guide hole which is located above the first guide hole and is coaxially arranged with the first guide hole, and the diameter of the third guide hole is smaller than that of the second guide hole.
6. The automatic press-fit part pin tooling of claim 5, wherein the upper fixing seat comprises a top plate, a frame plate and an upper base plate which are detachably connected in sequence from top to bottom, the first guide hole is positioned on the frame plate, the second guide hole is positioned on the upper base plate, and the third guide hole is positioned on the top plate.
7. The automatic press-fit part pin shaft tool of claim 6, wherein the lower fixing seat comprises a middle plate, a positioning plate, a fixing plate, a lower base plate and a pad leg which are sequentially and detachably connected from top to bottom, the positioning plate is provided with the positioning groove, and the middle plate is provided with the pin release hole.
8. The automatic press-fit part pin tooling of claim 7, wherein the side of the frame plate is fixedly connected to the side of the corner pad.
9. The automatic press-fit part pin fixture of any one of claims 1 to 8, wherein the drive mechanism is a pneumatic drive mechanism.
10. A press-fitting method based on the automatic press-fitting part pin tool as claimed in any one of claims 1 to 9, comprising the steps of:
placing the part to be pressed with the pin shaft in a positioning groove of the lower fixing seat, and placing the pin shaft to be installed in a pin releasing hole;
the pneumatic driving mechanism drives the compression bar to move downwards relative to the upper fixing seat, and the pin shaft in the pin releasing hole is pressed downwards, so that the pin shaft and the part are fixed;
after the press fitting is completed, the pneumatic driving mechanism drives the pressing rod to move upwards relative to the upper fixing seat so as to reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310659174.8A CN116493915A (en) | 2023-06-06 | 2023-06-06 | Automatic press-fitting part pin shaft tool and press-fitting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310659174.8A CN116493915A (en) | 2023-06-06 | 2023-06-06 | Automatic press-fitting part pin shaft tool and press-fitting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116493915A true CN116493915A (en) | 2023-07-28 |
Family
ID=87326815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310659174.8A Pending CN116493915A (en) | 2023-06-06 | 2023-06-06 | Automatic press-fitting part pin shaft tool and press-fitting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116493915A (en) |
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2023
- 2023-06-06 CN CN202310659174.8A patent/CN116493915A/en active Pending
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