CN210161030U - Cylinder body processing positioning benchmark frock centering mechanism - Google Patents
Cylinder body processing positioning benchmark frock centering mechanism Download PDFInfo
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- CN210161030U CN210161030U CN201922257327.8U CN201922257327U CN210161030U CN 210161030 U CN210161030 U CN 210161030U CN 201922257327 U CN201922257327 U CN 201922257327U CN 210161030 U CN210161030 U CN 210161030U
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- centering
- cylinder body
- swing arm
- transmission
- ejector rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims description 47
- 238000003754 machining Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 241000282537 Mandrillus sphinx Species 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model discloses a cylinder body processing positioning benchmark tool centering mechanism, which comprises centering devices which are symmetrically arranged left and right, wherein a workpiece placing area for transversely placing an engine cylinder body is arranged between the two centering devices; the centering device comprises a mounting seat, two pairs of middle rotating shafts are rotatably mounted in the mounting seat, the top ends of the two pairs of middle rotating shafts are respectively connected with centering ejector rods through a swing arm mechanism, mounting grooves used for swinging of the centering ejector rods are formed in the mounting seat, centering working parts extending out of the mounting grooves and matched with the end parts of the engine cylinder body are respectively arranged at the outer ends of the two pairs of middle ejector rods, the two pairs of middle working parts are oppositely arranged, and a rotary driving device used for driving the centering ejector rods to swing in the mounting grooves is mounted at the bottom ends of the two; the utility model discloses simple structure, easy maintenance can effectively guarantee that processing back jar hole wall thickness is even, and drives through adopting rotary drive device and realize the centering adjustment, and the adjustment process is simple, convenient operation.
Description
Technical Field
The utility model belongs to the technical field of the cylinder body frock, especially, relate to a cylinder body processing location benchmark frock centering mechanism.
Background
The cylinder body is a core part of the engine, the cylinder hole is also an important structure of the cylinder body, and the cylinder hole is a part for installing a cylinder sleeve in the engine and mainly ensures that engine oil forms a protective film on the cylinder wall to play a better lubricating role. The quality of the cylinder bore machining directly affects the performance and reliability of the entire engine, and therefore the problem of well-addressed cylinder bore machining is a critical step in the manufacture of cylinder blocks.
At present, in the process of cylinder block processing positioning reference, in order to ensure that the wall thickness of a processed cylinder hole is uniform and meet the performance requirement of an engine, the cylinder block is mainly centered and positioned by using a clamping wall between 2 adjacent cylinder holes, taking a 4-cylinder engine as an example, namely, the clamping wall between 2 cylinders and 3 cylinders is used as the positioning reference for positioning, then a pressing oil cylinder drives a pressing plate to press the cylinder block so as to process a process hole, but because the area of the clamping wall is large, positioning deviation easily exists, the wall thickness of the process hole processed in the way is easy to generate non-uniform phenomenon, and further the cylinder hole is deformed, and the performance of the whole machine is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a cylinder body processing positioning benchmark frock centering mechanism that the adjustment is simple, easy maintenance, can effectively guarantee that processing back jar hole wall thickness is even is provided.
In order to solve the technical problem, the technical scheme of the utility model is that: the cylinder body processing positioning reference tool centering mechanism comprises centering devices which are symmetrically arranged left and right, and a workpiece placing area for transversely placing an engine cylinder body is arranged between the two centering devices; the centering device comprises a mounting seat, two pairs of centering shafts are installed in the mounting seat in a rotating mode, the top end of each centering shaft is connected with a centering ejector rod through a swing arm mechanism, a mounting groove used for swinging the centering ejector rod is formed in the mounting seat, the outer end of each centering ejector rod is provided with a centering working portion extending out of the mounting groove and matched with the end portion of an engine cylinder body, the centering working portions are arranged oppositely, and the bottom end of each centering shaft is installed in a transmission mode to drive the centering ejector rods to swing in the mounting groove.
Preferably, the rotation driving device includes a driving hydraulic cylinder installed in the mounting seat, and a rotation transmission device is connected between an end of a cylinder rod of the driving hydraulic cylinder and the two centering shafts.
According to a preferable technical scheme, the rotary transmission device comprises a driving push block arranged at the end part of a cylinder rod of the driving hydraulic cylinder, transmission racks are respectively arranged on two sides of the driving push block, and transmission gears in transmission meshing with the corresponding transmission racks are respectively arranged at the bottom ends of the two centering rotating shafts.
As the preferred technical scheme, the two transmission gears are respectively connected to the corresponding centering rotating shafts in a key mode.
As a preferred technical scheme, the swing arm mechanism comprises a swing arm push rod fixedly connected to the top end of the centering rotating shaft, the end portion of the swing arm push rod is connected with the centering push rod through a push rod push pin, the lower portion of the push rod push pin is fixedly installed on the swing arm push rod, a clamping groove matched with the push rod push pin is formed in the centering push rod, and the top end of the push rod push pin is fixedly installed in the clamping groove.
As a preferable technical scheme, the bottom and the upper part of the centering rotating shaft are respectively and rotatably installed in the installation seat through bearings.
By adopting the technical scheme, the cylinder body processing positioning reference tool centering mechanism comprises centering devices which are symmetrically arranged left and right, and a workpiece placing area for transversely placing the engine cylinder body is arranged between the two centering devices; the centering device comprises a mounting seat, two pairs of centering shafts are rotatably mounted in the mounting seat, the top ends of the two centering shafts are respectively connected with centering ejector rods through swing arm mechanisms, mounting grooves for swinging of the centering ejector rods are formed in the mounting seat, centering working parts extending out of the mounting grooves and matched with the end parts of the engine cylinder body are respectively arranged at the outer ends of the two centering ejector rods, the two centering working parts are oppositely arranged, and a rotary driving device for driving the centering ejector rods to swing in the mounting grooves is mounted at the bottom ends of the two centering shafts in a transmission manner; the utility model has the advantages that: when the centering device works, after the engine cylinder body is positioned in the workpiece placing area, the two centering devices are matched with the two ends of the engine cylinder body, and the centering devices on the two sides work simultaneously, so that the engine cylinder body can be centered and adjusted; during centering adjustment, the rotation driving device drives the centering rotating shaft to rotate, then the centering ejector rod is driven to swing in the mounting groove through the swing arm mechanism, and in the swinging process of the centering ejector rod, the centering working part comes out of the mounting groove and swings forwards, the distance between the centering working part and the end part of the engine cylinder body is reduced, and the centering working part is in contact with the end part of the engine cylinder body, so that the engine cylinder body is pushed to move along the length direction of the engine cylinder body; the utility model discloses simple structure, easy maintenance can effectively guarantee that processing back jar hole wall thickness is even, and drives through adopting rotary drive device and realize the centering adjustment, and the adjustment process is simple, convenient operation.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic structural diagram of a centering device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 3 is a schematic diagram of the centering rod swinging forward according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of the centering rod swinging backward according to the embodiment of the present invention;
in the figure: 1-mounting a base; 2-centering the rotating shaft; 3-a bearing; 4-a swing arm mechanism; 41-swing arm push rod; 42-ejector pin push pin; 5-centering the ejector rod; 51-centering working part; 52-card slot; 6-driving a hydraulic cylinder; 7-a rotation transmission; 71-driving the push block; 72-a drive rack; 73-drive gear.
Detailed Description
The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 3, the cylinder block machining positioning reference tool centering mechanism comprises centering devices which are symmetrically arranged in the left-right direction, and a workpiece placing area for transversely placing an engine cylinder block is arranged between the two centering devices. The two centering devices can be symmetrically arranged on two sides of the base, and can also be directly and symmetrically arranged on two sides of the workpiece transmission channel.
The two centering devices have the same structure, and one of the centering devices is described below, with reference to figures 1 and 2, the centering device comprises a mounting seat 1, two pairs of centering shafts 2 are rotatably mounted in the mounting seat 1, the bottom and the upper part of the centering rotating shafts 2 are respectively rotatably arranged in the mounting seat 1 through bearings 3, the top ends of the two centering rotating shafts 2 are respectively connected with centering mandrills 5 through swing arm mechanisms 4, the mounting base 1 is internally provided with a mounting groove used for swinging the centering push rod 5, the outer ends of the centering push rod 5 are respectively provided with a centering working part 51 which extends out of the mounting groove and is matched with the end part of an engine cylinder body, the centering working parts 51 are oppositely arranged, and a rotary driving device which drives the centering push rod 5 to swing in the mounting groove is installed at the bottom end of the centering rotating shaft 2 in a transmission way. During centering adjustment, the rotation driving device drives the centering rotating shaft 2 to rotate, then the centering ejector rod 5 is driven to swing in the mounting groove through the swing arm mechanism 4, and in the swinging process of the centering ejector rod 5, the centering working part 51 comes out of the mounting groove and swings forwards, the distance between the centering working part and the end part of the engine cylinder body is reduced, and the centering working part is in contact with the end part of the engine cylinder body, so that the engine cylinder body is pushed to move along the length direction of the engine cylinder body. The utility model discloses simple structure, easy maintenance can effectively guarantee that processing back jar hole wall thickness is even.
The rotary driving device comprises a driving hydraulic cylinder 6 installed in the installation seat 1, a cylinder body of the driving hydraulic cylinder 6 is fixed in the installation seat 1, and a rotary transmission device 7 is connected between the end part of a cylinder rod of the driving hydraulic cylinder 6 and the two centering rotating shafts 2. The driving hydraulic cylinder 6 may be replaced with another telescopic mechanism such as an air cylinder. The centering adjustment is realized by driving the driving hydraulic cylinder 6, the adjustment process is simple, and the operation is convenient.
The rotary transmission device 7 comprises a driving push block 71 arranged at the end part of the cylinder rod of the driving hydraulic cylinder 6, transmission racks 72 are respectively arranged at two sides of the driving push block 71, transmission gears 73 in transmission engagement with the corresponding transmission racks 72 are respectively arranged at the bottom ends of the two centering rotating shafts 2, and the two transmission gears 73 are respectively in key connection with the corresponding centering rotating shafts 2. The driving push block 71 is fixedly connected with the transmission rack 72 to form an integral structure, so that when the driving push block 71 reciprocates, the transmission rack 72 is driven to reciprocate, and the transmission rack 72 is in transmission engagement with the transmission gear 73, so that the transmission gear 73 rotates through the reciprocating motion of the transmission rack 72.
The swing arm mechanism 4 comprises a swing arm push rod 41 fixedly connected to the top end of the centering rotating shaft 2, the end portion of the swing arm push rod 41 is connected with the centering push rod 5 through a push rod push pin 42, the lower portion of the push rod push pin 42 is fixedly mounted on the swing arm push rod 41, a clamping groove 52 matched with the push rod push pin 42 is formed in the centering push rod 5, and the upper end of the push rod push pin 42 is fixedly mounted in the clamping groove 52. The swing arm push rod 41 is internally provided with a mounting hole matched with the ejector rod push pin 42, and the lower part of the ejector rod push pin 42 is tightly matched and mounted in the mounting hole of the swing arm push rod 41. The centering push rod 5 is indirectly and fixedly installed on the centering rotating shaft 2 through the push rod push pin 42 and the swing arm push rod 41, and when the centering rotating shaft 2 rotates, the centering push rod 5 can be driven to rotate, so that the centering push rod 5 swings back and forth.
The working process of the utility model is as follows:
referring to fig. 3, when in use, the front end and the rear end of the engine cylinder are respectively provided with a centering mechanism, and the centering mechanisms at the two ends are symmetrically arranged and respectively face the engine cylinder, so that when in work, the centering working part 51 of the centering mandril 5 can be in contact with the surface of the engine cylinder for pushing the engine cylinder;
the cylinder rod of the driving hydraulic cylinder 6 is connected with a transmission rack 72 through a driving push block 71, the transmission rack 72 drives a left transmission gear 73 and a right transmission gear 73 to rotate, the transmission gears 73 are connected with the centering rotating shaft 2 into a whole through keys, a swing arm push rod 41 is fixed on the centering rotating shaft 2 through keys, the lower end of a push rod push pin 42 is installed on an installation hole of the swing arm push rod 41 in a tight fit mode, the upper end of the push rod push pin 42 is fixedly installed in a clamping groove 52 of a centering push rod 5, and the centering push rod 5 is driven to swing back and forth when the push.
When centering is needed: the cylinder rod of the hydraulic cylinder 6 is driven to move forwards, the driving push block 71 is pushed to drive the transmission rack 72 to move forwards, the transmission rack 72 drives the 2 transmission gears 73 on the two sides to rotate simultaneously when moving, and the transmission gears 73 drive the centering rotating shaft 2 to rotate when rotating. In the rotating process of the centering shaft 2, the swing arm push rod 41 fixed at the upper end of the centering shaft 2 and the fixed ejector pin push pin 42 on the swing arm push rod 41 rotate along with the centering shaft 2. When the push rod push pin 42 rotates, the centering push rod 5 is driven to swing forwards, namely towards the engine cylinder body, the position of the centering push rod 5 in fig. 3 is referred to, so that the centering working part 51 is in contact with the surface of the engine cylinder body, the centering mechanisms at the front end and the rear end of the engine cylinder body act simultaneously to push the engine workpiece to move in the length direction, centering is completed, and the moving direction of the engine workpiece is referred to the direction indicated by an arrow in fig. 3.
When centering is required to be finished: the cylinder rod of the hydraulic cylinder 6 is driven to move backwards, the driving push rod is pushed to drive the transmission rack 72 to move backwards, the transmission rack 72 drives the 2 transmission gears 73 on the two sides to rotate reversely at the same time when moving, and the transmission gears 73 drive the centering rotating shaft 2 to rotate reversely when rotating. In the process of the counter-rotating of the centering shaft 2, the swing arm push rod 41 fixed at the upper end of the centering shaft 2 and the fixed ejector pin push pin 42 on the swing arm push rod 41 rotate in the opposite direction along with the centering shaft 2. When the push rod push pin 42 rotates reversely, the centering push rod 5 is driven to swing backwards, namely, to be away from the engine cylinder body, referring to the position of the centering push rod 5 in fig. 4, so that the centering working part 51 is not contacted with the surface of the engine cylinder body any more, the centering mechanisms at the front end and the rear end of the engine cylinder body act simultaneously, the push rod is withdrawn to the initial position, and the centering is finished.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. Cylinder body processing location benchmark frock centering mechanism, its characterized in that: the engine cylinder body centering device comprises centering devices which are symmetrically arranged left and right, and a workpiece placing area for transversely placing an engine cylinder body is arranged between the two centering devices; the centering device comprises a mounting seat, two pairs of centering shafts are installed in the mounting seat in a rotating mode, the top end of each centering shaft is connected with a centering ejector rod through a swing arm mechanism, a mounting groove used for swinging the centering ejector rod is formed in the mounting seat, the outer end of each centering ejector rod is provided with a centering working portion extending out of the mounting groove and matched with the end portion of an engine cylinder body, the centering working portions are arranged oppositely, and the bottom end of each centering shaft is installed in a transmission mode to drive the centering ejector rods to swing in the mounting groove.
2. The cylinder body machining positioning reference tool centering mechanism of claim 1, characterized in that: the rotary driving device comprises a driving hydraulic cylinder installed in the installation seat, and a rotary transmission device is connected between the end part of a cylinder rod of the driving hydraulic cylinder and the two centering rotating shafts.
3. The cylinder body machining positioning reference tool centering mechanism of claim 2, characterized in that: the rotary transmission device comprises a driving push block arranged at the end part of the cylinder rod of the driving hydraulic cylinder, transmission racks are respectively arranged on two sides of the driving push block, and transmission gears which are in transmission meshing with the corresponding transmission racks are respectively arranged at the bottom ends of the two centering rotating shafts.
4. The cylinder body machining positioning reference tool centering mechanism of claim 3, characterized in that: the two transmission gears are respectively connected to the corresponding centering rotating shafts in a key mode.
5. The cylinder body machining positioning reference tool centering mechanism of claim 1, characterized in that: the swing arm mechanism comprises a swing arm push rod fixedly connected to the top end of the centering rotating shaft, the end portion of the swing arm push rod is connected with the centering ejector rod through an ejector rod pushing pin, the lower portion of the ejector rod pushing pin is fixedly installed on the swing arm push rod, a clamping groove matched with the ejector rod pushing pin is formed in the centering ejector rod, and the top end of the ejector rod pushing pin is fixedly installed in the clamping groove.
6. The cylinder body machining positioning reference tooling centering mechanism of any one of claims 1 to 5, characterized in that: the bottom and the upper part of the centering rotating shaft are respectively rotatably installed in the installation seat through bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922257327.8U CN210161030U (en) | 2019-12-17 | 2019-12-17 | Cylinder body processing positioning benchmark frock centering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922257327.8U CN210161030U (en) | 2019-12-17 | 2019-12-17 | Cylinder body processing positioning benchmark frock centering mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210161030U true CN210161030U (en) | 2020-03-20 |
Family
ID=69796570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922257327.8U Expired - Fee Related CN210161030U (en) | 2019-12-17 | 2019-12-17 | Cylinder body processing positioning benchmark frock centering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210161030U (en) |
-
2019
- 2019-12-17 CN CN201922257327.8U patent/CN210161030U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200320 |
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| CF01 | Termination of patent right due to non-payment of annual fee |