CN110653734A - Quick centering device for automobile cylindrical shaft assembly - Google Patents
Quick centering device for automobile cylindrical shaft assembly Download PDFInfo
- Publication number
- CN110653734A CN110653734A CN201910937325.5A CN201910937325A CN110653734A CN 110653734 A CN110653734 A CN 110653734A CN 201910937325 A CN201910937325 A CN 201910937325A CN 110653734 A CN110653734 A CN 110653734A
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- sliding
- cylindrical
- clamping plate
- sliding groove
- side support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Abstract
The invention discloses a quick centering device for an automobile cylindrical shaft assembly, which comprises a sliding base, a sliding side support, a side clamping plate and an upper clamping plate, wherein the sliding base is provided with an inverted T-shaped sliding groove and a pin groove, and the sliding side support is provided with an inverted T-shaped sliding strip and a pin hole; the sliding base is provided with a supporting shaft and a rolling sleeve through a semicircular angle iron; a cylindrical sliding groove of the sliding base is provided with a piston rod, and the cylindrical sliding groove is communicated with an air inlet pipe, a pressure gauge, a micro pump and an emptying pipe; the sliding side support is also connected with the upper clamp plate in a clamping fit with the piston rod through a cylindrical sliding groove, the side clamp plate is connected with the upper clamp plate through an extension spring, one side surfaces of the sliding side support, the side clamp plate and the upper clamp plate are respectively provided with two groups of rolling sleeves, and the eight rolling sleeves clamp an automobile cylindrical shaft assembly. The invention provides a rectangular square hole clamp structure with adjustable four-side distance, which can adjust the transverse and longitudinal pressure on a part through an air pump, further adjust the clamping force of the part and reduce the damage rate of the part.
Description
Technical Field
The invention relates to the technical field of automobile part machining, in particular to a quick centering device for an automobile cylindrical shaft assembly.
Background
The automobile parts comprise a large number of cylindrical shaft components of shafts, wheels, bearing rings and the like, and the large components need to be centered and clamped in the processes of processing, testing, assembling and maintaining.
The existing centering clamp for the automobile part machining workshop generally adopts a pneumatic vice type bidirectional clamping mode, the clamping force is mainly arranged on two sides, the acting force of the clamp jaw on the contact surface of the part is large, the stress on the cambered surface of the part is uneven, and the part is easy to deform and damage; particularly when the surface has depressions, the accuracy of its centering is particularly low, causing inaccuracies in the subsequent processing. If the center of the end face of a shaft member is bored, if the center is not aligned, the shaft member fails to be machined.
There is thus a need for improvements to existing centering fixtures.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a quick centering device for an automobile cylindrical shaft assembly.
In order to achieve the purpose, the invention adopts the following technical scheme:
the quick centering device comprises a sliding base, a sliding side support in clamping fit with the top surface of the sliding base, a side clamping plate in sleeve fit with the side surface of the sliding base, and an upper clamping plate in sleeve fit with the top surface of the sliding side support, wherein the top surface of the sliding base is provided with two symmetrical sets of inverted T-shaped sliding grooves, the bottom of the sliding side support is provided with an inverted T-shaped sliding strip in clamping fit with the inverted T-shaped sliding grooves, the sliding base is of a flat rectangular box structure, the sliding side support is particularly of an L-shaped structure integrally formed by the flat rectangular box and a rectangular plate, a group of pin holes are formed in the rectangular plate of the sliding side support, and a plurality of pin grooves corresponding to the pin holes are formed in the top surface of the sliding base;
two sides of the top surface of the sliding base are provided with symmetrical semi-circular angle irons, two semi-circular angle irons are erected with a support shaft, the middle part of the support shaft is movably sleeved with a rolling sleeve, the top surface of the sliding base is also provided with a strip-shaped groove corresponding to the rolling sleeve, and the sliding base is provided with two rolling sleeves arranged in parallel;
a cylindrical sliding groove is arranged on the side surface of the sliding base close to the direction of the side clamping plate, a piston rod which is in sliding clamping connection with the cylindrical sliding groove is arranged at the lower part of the side surface of the side clamping plate, the caliber of an opening part of the cylindrical sliding groove is smaller than the inner diameter of the groove body, a piston which is in clamping connection with the groove body of the cylindrical sliding groove is arranged at one end of the piston rod which extends into the cylindrical sliding groove, and the rod wall of the piston rod;
the side, away from the piston rod, of the cylindrical sliding groove is communicated with an air inlet pipe, the pipe wall of the air inlet pipe is communicated with a pressure gauge, one end, away from the cylindrical sliding groove, of the air inlet pipe is connected with a micro pump, the other side of the micro pump is connected with an emptying pipe, most of the air inlet pipe, the micro pump and the emptying pipe are located inside the sliding base, the emptying pipe extends out of the sliding base, and a dial plate of the pressure gauge is arranged on the outer side wall;
the top surface of the sliding side support is also provided with a cylindrical sliding groove, an air inlet pipe, a pressure gauge, a micro pump and an emptying pipe assembly, the bottom surface of the upper clamping plate is provided with a corresponding piston rod, and the sliding side support and the upper clamping plate are also connected with the piston rod in a clamping fit manner through the cylindrical sliding groove;
pull rings are respectively arranged on the top surface of the side clamping plate and one side wall of the upper clamping plate, an extension spring is hung between the two groups of pull rings, and the side clamping plate and the upper clamping plate are connected with each other through the extension spring;
one side of slip side support, side splint and punch holder is equipped with two sets of semicircle angle irons, back shaft, rolling sleeve and bar groove set spare respectively, and an automobile cylinder axle subassembly is held to eight rolling sleeve.
Preferably, the contact surface of the inverted T-shaped sliding groove and the inverted T-shaped sliding strip is filled with lubricating oil.
Preferably, the surface of the rolling sleeve is polished smooth.
Preferably, the micropump is embodied as a Carmeler 12V/24V negative pressure vacuum pump.
Preferably, the extension spring is a high strength heavy duty spring.
Compared with the prior art, the invention has the beneficial effects that:
the sliding base and the side clamping plate are connected through the piston rod and the cylindrical sliding groove, the sliding side support and the upper clamping plate are connected, the sliding base and the sliding side support are connected through the inverted T-shaped sliding groove and the inverted T-shaped sliding strip, and the side clamping plate and the upper clamping plate are connected through the extension spring, so that a rectangular square hole clamp structure with adjustable four-side distance is formed; the clamp can adjust the transverse and longitudinal pressure applied to the part through the air pump, can adjust the clamping force on the part according to the pressure, and reduces the possibility of damage to the part.
Drawings
FIG. 1 is a schematic structural view of a quick centering device for a vehicle stub shaft assembly according to the present invention;
FIG. 2 is an assembled schematic view of the quick centering device for a vehicle stub shaft assembly in accordance with the present invention;
in the figure: the device comprises a sliding base 1, a sliding side support 2, a side clamping plate 3, an upper clamping plate 4, an inverted T-shaped sliding groove 5, an inverted T-shaped sliding strip 6, a pin hole 7, a pin groove 8, semicircular angle iron 9, a supporting shaft 10, a rolling sleeve 11, a strip-shaped groove 12, a cylindrical sliding groove 13, a piston rod 14, an air inlet pipe 15, a pressure gauge 16, a micro pump 17, an emptying pipe 18, a pull ring 19 and a tension spring 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, the fast centering device for the automobile cylindrical shaft assembly comprises a sliding base 1, a sliding side support 2 in clamping fit with the top surface of the sliding base 1, a side clamp plate 3 in sleeve fit with the side surface of the sliding base 1, and an upper clamp plate 4 in sleeve fit with the top surface of the sliding side support 2, wherein the top surface of the sliding base 1 is provided with two symmetrical inverted T-shaped chutes 5, the bottom of the sliding side support 2 is provided with an inverted T-shaped slide bar 6 in clamping fit with the inverted T-shaped chute 5, the sliding base 1 is of a flat rectangular box structure, the sliding side support 2 is specifically of an L-shaped structure integrally formed by a flat rectangular box body and a rectangular plate, a group of pin holes 7 are formed in the rectangular plate of the sliding side support 2, and a plurality of pin grooves 8 corresponding to the pin holes 7 are formed in the top surface of the; two sides of the top surface of the sliding base 1 are provided with symmetrical semicircular angle irons 9, a supporting shaft 10 is erected on the two semicircular angle irons 9, the middle part of the supporting shaft 10 is movably sleeved with a rolling sleeve 11, the top surface of the sliding base 1 is also provided with a strip-shaped groove 12 corresponding to the rolling sleeve 11, and the sliding base 1 is provided with two rolling sleeves 11 which are arranged in parallel; a cylindrical sliding groove 13 is arranged on the side surface of the sliding base 1 close to the side clamping plate 3, a piston rod 14 in sliding clamping connection with the cylindrical sliding groove 13 is arranged at the lower part of the side surface of the side clamping plate 3, the caliber of the opening part of the cylindrical sliding groove 13 is smaller than the inner diameter of the groove body, a piston in clamping connection with the groove body of the cylindrical sliding groove 13 is arranged at one end of the piston rod 14 extending into the cylindrical sliding groove 13, and the rod wall of the piston rod 14 is in sliding clamping connection with the opening; an air inlet pipe 15 is communicated with one side, away from the piston rod 14, of the cylindrical sliding groove 13, a pressure gauge 16 is communicated with the pipe wall of the air inlet pipe 15, one end, away from the cylindrical sliding groove 13, of the air inlet pipe 15 is connected with a micro pump 17, the other side of the micro pump 17 is connected with an emptying pipe 18, most of the air inlet pipe 15, the micro pump 17 and the emptying pipe 18 are located inside the sliding base 1, the emptying pipe 18 extends out of the sliding base 1, and a dial plate of the pressure gauge 16 is arranged on the outer side wall of; the top surface of the sliding side support 2 is also provided with a cylindrical sliding groove 13, an air inlet pipe 15, a pressure gauge 16, a micro pump 17 and an emptying pipe 18 assembly, the bottom surface of the upper clamping plate 4 is provided with a corresponding piston rod 14, and the sliding side support 2 and the upper clamping plate 4 are also connected with the piston rod 14 in a clamping fit manner through the cylindrical sliding groove 13; pull rings 19 are respectively arranged on the top surface of the side clamping plate 3 and one side wall of the upper clamping plate 4, an extension spring 20 is hung between the two groups of pull rings 19, and the side clamping plate 3 and the upper clamping plate 4 are connected with each other through the extension spring 20; one side of sliding side support 2, side splint 3 and punch holder is equipped with two sets of semicircle angle bar 9, back shaft 10, rolling sleeve 11 and bar recess 12 subassemblies respectively, and an automobile cylinder axle subassembly is held to eight rolling sleeve 11 centre grippings.
Referring to fig. 1, the contact surface of the inverted T-shaped sliding groove 5 and the inverted T-shaped sliding strip 6 is filled with lubricating oil, so that certain flexibility is ensured before the sliding base 1 and the sliding side support 2 are adjusted, and then the sliding base 1 and the sliding side support 2 are completely fixed by fastening pins passing through the pin holes 7 and the pin grooves 8.
Referring to fig. 1, the surface of the rolling sleeve 11 is polished and smoothed, so that the friction force of the contact surface of the rolling sleeve 11 and the automobile cylindrical shaft assembly is small, and the parts are prevented from being damaged by friction.
Referring to fig. 1, a micro pump 17, specifically a camier 12V/24V negative pressure vacuum pump, is used to charge and discharge air to and from the cylindrical chute 13 to push the piston rod 14, so as to change the distance between the slide base 1 and the side clamping plate 3, and also to change the distance between the slide side support 2 and the upper clamping plate 4, so as to adapt to cylindrical parts of different sizes.
Referring to fig. 1, the tension spring 20 is a high-strength heavy-duty spring, which ensures that the side clamping plate 3 and the upper clamping plate 4 are fastened together.
The working process of the invention is as follows: according to the arrangement, the sliding base 1 and the side clamping plate 3 are preferably clamped, the sliding side support 2 and the upper clamping plate 4 are also clamped, and a sliding ring can be welded to seal the opening of the cylindrical sliding groove 13, so that the caliber of the cylindrical sliding groove 13 is smaller than the inner diameter of the groove body; then clamping the sliding side support 2 on the sliding base 1, fixing the sliding side support by using a fastening pin, and finally connecting the side clamping plate 3 and the upper clamping plate 4 through an extension spring 20 to form a rectangular square hole structure with adjustable four-side distance;
the cylindrical part of the automobile cylindrical shaft assembly is arranged in the rectangular square hole structure, the micropump 17 is started according to the diameter of the part, the cylindrical sliding groove 13 is inflated and deflated to push the piston rod 14, the distance between the sliding base 1 and the side clamping plate 3 is changed, the distance between the sliding side support 2 and the upper clamping plate 4 is also changed, therefore, the part is clamped, the pressure measured by the two pressure gauges 16 is the transverse and longitudinal pressure applied to the part, and the clamping force applied to the part can be adjusted according to the pressure.
Another application example of the invention can thus be extended: according to the working process, the cylinder to be tested is placed in the rectangular square hole structure, so that the two groups of pressure gauges 16 are the same value within 0.3-0.5MPa, one end or two ends of the cylinder part are connected with a rotating shaft through a coupler, the cylinder part is rotated while the change values of the two groups of pressure gauges 16 are tested (particularly, the electromagnetic pressure gauge is used as a standard, a control chip is arranged to record the pressure value), a change curve is drawn, and whether the surface of the cylinder part to be tested is a flat smooth arc surface or not can be tested. Therefore, the method can be applied to detecting whether the surface flatness and the radian of the cylindrical part are complete, and only the idea of the detection method is simply explained here, so that the specific application effect is not expanded.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A quick centering device for an automobile cylindrical shaft assembly comprises a sliding base (1), a sliding side support (2) which is in clamping fit with the top surface of the sliding base (1), a side clamping plate (3) which is in sleeve fit with the side surface of the sliding base (1), and an upper clamping plate (4) which is in sleeve fit with the top surface of the sliding side support (2), it is characterized in that the top surface of the sliding base (1) is provided with two symmetrical groups of inverted T-shaped sliding chutes (5), an inverted T-shaped sliding strip (6) clamped with the inverted T-shaped sliding groove (5) is arranged at the bottom of the sliding side support (2), the sliding base (1) is of a flat rectangular box body structure, the sliding side support (2) is of an L-shaped structure which is formed by integrally forming a flat rectangular box body and a long strip plate, a group of pin holes (7) are arranged on the long strip plate of the sliding side support (2), a plurality of groups of pin grooves (8) corresponding to the pin holes (7) are formed in the top surface of the sliding base (1);
symmetrical semi-circular angle irons (9) are arranged on two sides of the top surface of the sliding base (1), supporting shafts (10) are erected on the two semi-circular angle irons (9), rolling sleeves (11) are movably sleeved in the middle of the supporting shafts (10), strip-shaped grooves (12) corresponding to the rolling sleeves (11) are further arranged on the top surface of the sliding base (1), and the sliding base (1) is provided with two rolling sleeves (11) which are arranged in parallel;
a cylindrical sliding groove (13) is formed in the side face, close to the side clamping plate (3), of the sliding base (1), a piston rod (14) in sliding clamping connection with the cylindrical sliding groove (13) is arranged at the lower portion of the side face of the side clamping plate (3), the caliber of an opening portion of the cylindrical sliding groove (13) is smaller than the inner diameter of a groove body, a piston in clamping connection with the groove body of the cylindrical sliding groove (13) is arranged at one end, extending into the cylindrical sliding groove (13), of the piston rod (14), and the rod wall of the piston rod (14) is in sliding clamping connection with the opening portion of the cylindrical sliding groove (;
one side, far away from the piston rod (14), of the cylindrical sliding groove (13) is communicated with an air inlet pipe (15), the pipe wall of the air inlet pipe (15) is communicated with a pressure gauge (16), one end, far away from the cylindrical sliding groove (13), of the air inlet pipe (15) is connected with a micro pump (17), the other side of the micro pump (17) is connected with an emptying pipe (18), most of the air inlet pipe (15), the micro pump (17) and the emptying pipe (18) are located inside the sliding base (1), the emptying pipe (18) extends out of the sliding base (1), and a dial plate of the pressure gauge (16) is arranged on the outer side wall of the sliding base (1);
the top surface of the sliding side support (2) is also provided with a cylindrical sliding groove (13), an air inlet pipe (15), a pressure gauge (16), a micro pump (17) and an emptying pipe (18) assembly, the bottom surface of the upper clamping plate (4) is provided with a corresponding piston rod (14), and the sliding side support (2) and the upper clamping plate (4) are also connected with the piston rod (14) in a clamping fit manner through the cylindrical sliding groove (13);
pull rings (19) are respectively arranged on the top surface of the side clamping plate (3) and one side wall of the upper clamping plate (4), an extension spring (20) is hung between the two groups of pull rings (19), and the side clamping plate (3) and the upper clamping plate (4) are connected with each other through the extension spring (20);
one side of sliding side support (2), side splint (3) and punch holder is equipped with two sets of semicircle angle bar (9), back shaft (10), rolling sleeve (11) and bar recess (12) subassembly, eight respectively a car cylinder axle subassembly of rolling sleeve (11) centre gripping.
2. The quick centering device for the automobile cylindrical shaft assembly according to claim 1, characterized in that the contact surface of the inverted-T-shaped sliding groove (5) and the inverted-T-shaped sliding strip (6) is filled with lubricating oil.
3. The quick centering device for automobile cylindrical shaft assemblies according to claim 1, characterized in that the surface of the rolling sleeve (11) is subjected to a grinding and smoothing treatment.
4. The device for the rapid centering of cylindrical axle components for motor vehicles according to claim 1, characterized in that the micropump (17) is embodied as a kamer 12V/24V negative pressure vacuum pump.
5. The quick centering device for automobile cylindrical axle assemblies according to claim 1, characterized in that the extension spring (20) is a high strength heavy duty spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910937325.5A CN110653734A (en) | 2019-09-30 | 2019-09-30 | Quick centering device for automobile cylindrical shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910937325.5A CN110653734A (en) | 2019-09-30 | 2019-09-30 | Quick centering device for automobile cylindrical shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110653734A true CN110653734A (en) | 2020-01-07 |
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ID=69040134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910937325.5A Withdrawn CN110653734A (en) | 2019-09-30 | 2019-09-30 | Quick centering device for automobile cylindrical shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110653734A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496719A (en) * | 2020-04-09 | 2020-08-07 | 中建二局安装工程有限公司 | Metal air duct connecting device |
-
2019
- 2019-09-30 CN CN201910937325.5A patent/CN110653734A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496719A (en) * | 2020-04-09 | 2020-08-07 | 中建二局安装工程有限公司 | Metal air duct connecting device |
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Application publication date: 20200107 |
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| WW01 | Invention patent application withdrawn after publication |