CN216542077U - Special clamp for engine bearing cover - Google Patents
Special clamp for engine bearing cover Download PDFInfo
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- CN216542077U CN216542077U CN202122459866.7U CN202122459866U CN216542077U CN 216542077 U CN216542077 U CN 216542077U CN 202122459866 U CN202122459866 U CN 202122459866U CN 216542077 U CN216542077 U CN 216542077U
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- fixedly connected
- pressing plate
- clamp body
- connecting disc
- positioning block
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- 238000003825 pressing Methods 0.000 claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model relates to a special fixture for an engine bearing cap, belonging to the field of tool fixtures, and comprising a connecting disc and a pressing plate connecting disc, wherein the pressing plate connecting disc is arranged on the front side of the connecting disc and is used for being fixedly connected with the telescopic end of a lathe hydraulic cylinder; the clamp body is arranged on the front side of the press plate connecting disc and is fixedly connected with the connecting disc; one end of the ejector rod is fixedly connected with the pressing plate connecting disc, and the other end of the ejector rod extends outwards to the front side of the clamp body; the pressure plate supporting block is positioned on the lower side of the ejector rod and fixedly connected to the front end face of the clamp body; the pressing plates are vertically arranged on the clamp body, the top of each pressing plate is hinged with the corresponding ejector rod, and the middle of each pressing plate is hinged with the corresponding pressing plate supporting block; a lower positioning block, a rear positioning block, a side positioning block and a pre-tightening positioning block; the numerical control lathe is provided with the hydraulic cylinder to provide power to automatically clamp the workpiece, so that the working efficiency is improved.
Description
Technical Field
The utility model relates to the field of tool fixtures, in particular to a special fixture for an engine bearing cover.
Background
The engine bearing cover is an important part of an engine, and the type of the engine bearing cover is various and the processing requirement is large. When an engine bearing cover is machined, particularly when a plane and a semicircular hole are machined, the machining needs to be finished on a horizontal numerical control lathe, and a special clamp needs to be used for fixing. The existing engine bearing cap is generally processed and fixed by manually clamping a workpiece through a lever mechanism by adopting two hexagon screws, the labor intensity of an operator is high, the efficiency is low, the processing quality is unstable, and the existing clamp can not meet the requirement of mass production and development along with the continuous increase of varieties and yield.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of the prior art, and provides a special clamp for an engine bearing cap, which utilizes a hydraulic cylinder of a numerical control lathe to provide power, so that the working efficiency is improved.
The technical scheme for solving the technical problems is as follows: a special clamp for an engine bearing cap is characterized by comprising
The connecting disc is arranged in the vertical direction and is used for being fixedly connected with a lathe;
the pressing plate connecting disc is arranged on the front side of the connecting disc and is used for being fixedly connected with the telescopic end of the lathe hydraulic cylinder;
the clamp body is arranged on the front side of the press plate connecting disc and is fixedly connected with the connecting disc;
one end of the ejector rod is fixedly connected with the pressing plate connecting disc, and the other end of the ejector rod extends outwards to the front side of the clamp body;
the pressing plate supporting blocks are positioned on the lower side of the ejector rod and fixedly connected to the front end face of the clamp body;
the pressing plates are vertically arranged on the clamp body, the top of each pressing plate is hinged with the corresponding ejector rod, the middle of each pressing plate is hinged with the corresponding pressing plate supporting block, and the bottom end of each pressing plate comprises an inclined plane which is inclined forwards and downwards at a certain angle and a pressing surface connected with the lower end of the inclined plane and used for limiting the top end of a workpiece;
the group of lower positioning blocks are positioned below the pressing plate, fixedly connected to the front end face of the clamp body and used for limiting the bottom end of the workpiece;
the group of rear positioning blocks are positioned between the pressing plate and the lower positioning blocks, fixedly connected to the front end face of the fixture body and used for limiting the rear end face of the workpiece;
the side positioning block is positioned on one side of the rear positioning block and fixedly connected to the front end face of the clamp body;
and the pre-tightening positioning block is positioned on the other side of the rear positioning block, is fixedly connected to the front end face of the clamp body, and is used for limiting the workpiece in the horizontal direction under the combined action of the pre-tightening positioning block and the side positioning block.
Further, the special fixture also comprises
The adjusting support is connected to the pressure plate connecting disc, and the front end of the adjusting support is close to the rear end face of the clamp body;
and the pressing nail is fixedly connected to the rear end face of the clamp body and is in contact with the adjusting support.
Furthermore, the pressure plate connecting disc is fixedly connected with the telescopic end of the lathe hydraulic cylinder through a bolt and a tensioning nut.
Further, the ejector rod penetrates through the surface of the clamp body, and the ejector rod is in clearance fit with the clamp body.
Furthermore, the lower positioning block adopts a dynamic steel ball positioning screw rod.
Furthermore, the rear positioning block adopts a dynamic steel ball positioning screw rod.
Furthermore, the side positioning blocks adopt adjustable V-shaped blocks.
Furthermore, the pre-tightening positioning block adopts a knurled screw.
The utility model has the beneficial effects that: the utility model utilizes the self-contained hydraulic cylinder of the machine tool as the power of the press plate and the press plate is matched with the lower positioning block, the rear positioning block, the side positioning block and the pre-tightening positioning block, thereby realizing the automatic positioning and clamping of the workpiece, effectively lightening the labor intensity of an operator, improving the working efficiency, being reliable in positioning and clamping and being stable in quality of processed products.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic left side view of the present invention;
FIG. 3 is a schematic top view of the present invention;
in the figure: 1. the device comprises a connecting disc, 2 parts of a pressing plate connecting disc, 21 parts of a tensioning nut, 3 parts of a clamp body, 4 parts of an ejector rod, 5 parts of a pressing plate supporting plate, 6 parts of a pressing plate, 61 parts of an inclined surface, 62 parts of a pressing surface, 7 parts of a lower positioning block, 8 parts of a rear positioning block, 9 parts of a side positioning block, 10 parts of a pre-tightening positioning block, 11 parts of an adjusting support, 12 parts of a pressing nail, 101 parts of a lathe and 102 parts of a lathe hydraulic cylinder.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the utility model.
As shown in fig. 1 to 3, the engine bearing cap dedicated jig of the present embodiment includes:
the connecting disc 1 is arranged in the vertical direction and is fixedly connected with the lathe 101;
the pressing plate connecting disc 2 is arranged on the front side of the connecting disc 1 and is used for being fixedly connected with the telescopic end of a lathe hydraulic cylinder 102 of the numerical control lathe; the pressure plate connecting disc 2 is fixedly connected with the telescopic end of the lathe hydraulic cylinder 102 through a bolt and a tightening nut 21.
The clamp body 3 is arranged on the front side of the pressing plate connecting disc 2 and is fixedly connected with the connecting disc 1 through a stud;
one end of the ejector rod 4 is fixedly connected with the pressing plate connecting disc 2, and the other end of the ejector rod extends outwards to the front side of the clamp body 3; the ejector rod 4 penetrates through the surface of the clamp body 3, and the ejector rod 4 is in clearance fit with the clamp body 3;
a group of pressure plate supporting blocks 5 which are positioned at the lower side of the mandril 4 and are fixedly connected on the front end surface of the clamp body 3;
the two pressing plates are vertically arranged on the clamp body 3, the top of each pressing plate 6 is hinged with the corresponding ejector rod 4, the middle of each pressing plate 6 is hinged with the corresponding pressing plate supporting block 5, the pressing plates, the ejector rods and the pressing plate supporting blocks 5 form a hinge mechanism, the bottom end of each pressing plate 6 comprises an inclined surface 61 which is inclined forwards and downwards at a certain angle and a pressing surface 62 connected with the lower end of the inclined surface 61, and the pressing surfaces are used for limiting the top end of a workpiece;
the two lower positioning blocks 7 are positioned below the pressing plate 6, fixedly connected to the front end face of the fixture body 3 and used for limiting the bottom end of a workpiece; the lower positioning block 7 of the embodiment specifically adopts a dynamic steel ball positioning screw rod;
the three rear positioning blocks 8 are positioned between the pressing plate 6 and the lower positioning block 7, fixedly connected to the front end face of the fixture body 3 and used for limiting the rear end face of the workpiece; the rear positioning block 8 of the embodiment adopts a dynamic steel ball positioning screw rod;
a side positioning block 9 which is positioned at one side of the rear positioning block 8 and is fixedly connected to the front end surface of the fixture body 3; the side positioning block 9 of the embodiment adopts an adjustable V-shaped block;
the pre-tightening positioning block 10 is positioned on the other side of the rear positioning block 8, is fixedly connected to the front end face of the fixture body 3, and is used for limiting the workpiece in the horizontal direction under the combined action of the pre-tightening positioning block and the side positioning block 9; the pretension positioning block 10 of the embodiment adopts a knurled screw.
The use process comprises the following steps:
1. connecting: the connecting disc 1 is fixedly connected with the numerically controlled lathe, and the pressing plate connecting disc 2 is fixedly connected to the telescopic end of a lathe hydraulic cylinder 102 of the numerically controlled lathe by bolts and tightening nuts.
2. Positioning: the workpiece is placed on the lower positioning blocks 7, six degrees of freedom are limited by the two lower positioning blocks 7, the three rear positioning blocks 8 and the side positioning blocks 9, and then the pre-tightening positioning blocks 10 are used for manual pre-clamping, so that the workpiece is prevented from moving in the machining process.
3. Fixing: after the workpiece is positioned, a hydraulic cylinder of the numerical control lathe is started, the telescopic end of the hydraulic cylinder is connected with a tensioning nut 21, thrust is generated on two ejector rods 4 through a pressing plate connecting disc 2, a pressing plate 6 is pushed to rotate through the hinge mechanism, and an inclined surface 61 structure on the pressing plate 6 is combined, so that horizontal backward thrust and a downward component force are generated on the workpiece, the workpiece can be effectively prevented from upwarping after being clamped, automatic clamping on the workpiece can be realized, the workpiece is firmly positioned and fixed, and then the lathe is started to process the plane and the semicircular hole of the workpiece.
On the basis of the above embodiments, other embodiments of the present invention further include
The adjusting support 11 is connected to the pressure plate connecting disc 2, and the front end of the adjusting support is close to the rear end face of the clamp body 3;
and the pressing nail 12 is fixedly connected to the rear end face of the clamp body 3 and is in contact with the adjusting support 11.
The distance between the pressure plate connecting disc 2 and the clamp body 3 can be adjusted by the matching of the adjusting support 11 and the pressing nail 12, and further the distance that the front end of the ejector rod 4 protrudes out of the clamp body 3 is adjusted, so that the pressing surface 62 of the pressure plate 6 is just enabled to be in contact with and fixed to the top end surface of the workpiece when the ejector rod 4 acts.
Claims (8)
1. A special clamp for an engine bearing cap is characterized by comprising
The connecting disc (1) is arranged in the vertical direction and is fixedly connected with a lathe (101);
the pressing plate connecting disc (2) is arranged on the front side of the connecting disc (1) and is used for being fixedly connected with the telescopic end of the lathe hydraulic cylinder (102);
the clamp body (3) is arranged on the front side of the pressing plate connecting disc (2) and is fixedly connected with the connecting disc (1);
one end of the ejector rod (4) is fixedly connected with the pressing plate connecting disc (2), and the other end of the ejector rod extends outwards to the front side of the clamp body (3);
the pressing plate supporting blocks (5) are positioned on the lower side of the ejector rod (4) and fixedly connected to the front end face of the clamp body (3);
the group of pressing plates (6) are vertically arranged on the clamp body (3), the top of each pressing plate (6) is hinged with the corresponding ejector rod (4), the middle of each pressing plate (6) is hinged with the corresponding pressing plate supporting block (5), and the bottom end of each pressing plate (6) comprises an inclined surface (61) which is inclined forwards and downwards at a certain angle and a pressing surface (62) connected with the lower end of the inclined surface (61) and used for limiting the top end of a workpiece;
the lower positioning blocks (7) are positioned below the pressing plate (6), fixedly connected to the front end face of the clamp body (3) and used for limiting the bottom end of the workpiece;
the group of rear positioning blocks (8) are positioned between the pressing plate (6) and the lower positioning blocks (7), are fixedly connected to the front end face of the clamp body (3), and are used for limiting the rear end face of the workpiece;
a side positioning block (9) which is positioned at one side of the rear positioning block (8) and is fixedly connected to the front end surface of the clamp body (3);
and the pre-tightening positioning block (10) is positioned on the other side of the rear positioning block (8), is fixedly connected to the front end face of the clamp body (3), and is used for limiting the workpiece in the horizontal direction under the combined action of the pre-tightening positioning block and the side positioning block (9).
2. The engine bearing cap specific fixture of claim 1, further comprising
The adjusting support is connected to the pressure plate connecting disc (2), and the front end of the adjusting support is close to the rear end face of the clamp body (3);
and the pressing nail is fixedly connected to the rear end face of the clamp body (3) and is contacted with the adjusting support.
3. The special clamp for the engine bearing cover is characterized in that the pressure plate connecting disc (2) is fixedly connected with the telescopic end of the lathe hydraulic cylinder (102) through a bolt and a tensioning nut.
4. The special clamp for the engine bearing cover as recited in claim 1, wherein the ejector rod (4) penetrates through the surface of the clamp body (3), and the ejector rod (4) and the clamp body (3) are in clearance fit.
5. The special fixture for the engine bearing cap as recited in claim 1, wherein the lower positioning block (7) is a dynamic steel ball positioning screw.
6. The special fixture for the engine bearing cap as recited in claim 1, wherein the rear positioning block (8) adopts a moving steel ball positioning screw.
7. The special fixture for the engine bearing cover as recited in claim 1, characterized in that the side positioning blocks (9) are adjustable V-shaped blocks.
8. The special clamp for the engine bearing cover as recited in claim 1, characterized in that the pre-tightening positioning block (10) is a knurled screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122459866.7U CN216542077U (en) | 2021-10-13 | 2021-10-13 | Special clamp for engine bearing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122459866.7U CN216542077U (en) | 2021-10-13 | 2021-10-13 | Special clamp for engine bearing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216542077U true CN216542077U (en) | 2022-05-17 |
Family
ID=81566670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122459866.7U Active CN216542077U (en) | 2021-10-13 | 2021-10-13 | Special clamp for engine bearing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216542077U (en) |
-
2021
- 2021-10-13 CN CN202122459866.7U patent/CN216542077U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A special fixture for engine bearing cover Effective date of registration: 20230113 Granted publication date: 20220517 Pledgee: Bank of China Limited Yanzhou sub branch Pledgor: SHANDONG LIANCHENG PRECISION MANUFACTURING Co.,Ltd. Registration number: Y2023980030842 |