阅读说明：本技术 一种用于安装机油泵滤网壳的铆压装置 (Riveting device for mounting machine oil pump filter screen shell ) 是由 袁晓斌 于 2021-09-18 设计创作，主要内容包括：本发明提供了一种用于安装机油泵滤网壳的铆压装置,包括支架、铆压部件,以及用来固定吸油管的夹具部件和辅助压紧部件；所述铆压部件包括铆压气缸、下模板、滤网壳下模、铆压头、铆压拉杆；所述铆压气缸固定于支架的下固定板的下表面,在下固定板的上表面安装有下模板,下模板设有滤网壳下模和多个异形通孔,异形通孔的孔壁朝外的一侧具有斜面结构,使异形通孔的整体形状为上大下小；每个异形通孔内均安装有一个铆压头,铆压头内侧面的上部设有向内侧延伸的压嘴,铆压头外侧面的下部设有一个滚轮,该滚轮能够与异形通孔的斜面接触配合,每个铆压头的下部均安装有铆压拉杆,铆压拉杆的下端穿过下模板的异形通孔和下固定板的通孔后与铆压气缸活动连接。(The invention provides a riveting device for mounting an oil pump filter screen shell of a machine, which comprises a bracket, a riveting component, a clamp component for fixing an oil suction pipe and an auxiliary pressing component, wherein the bracket is used for fixing the oil suction pipe; the riveting component comprises a riveting cylinder, a lower template, a lower filter screen shell die, a riveting head and a riveting pull rod; the riveting cylinder is fixed on the lower surface of a lower fixing plate of the bracket, a lower template is installed on the upper surface of the lower fixing plate, the lower template is provided with a lower filter screen shell die and a plurality of special-shaped through holes, and the side, facing outwards, of the hole wall of each special-shaped through hole is provided with an inclined plane structure, so that the overall shape of each special-shaped through hole is large at the top and small at the bottom; all install a riveting head in every dysmorphism through-hole, the upper portion of riveting head medial surface is equipped with the pressure mouth that extends to the inboard, and the lower part of riveting head lateral surface is equipped with a gyro wheel, and this gyro wheel can contact the cooperation with the inclined plane of dysmorphism through-hole, and the riveting pull rod is all installed to the lower part of every riveting head, and the lower extreme of riveting pull rod passes behind the special-shaped through-hole of lower bolster and the through-hole of bottom plate with riveting cylinder swing joint.)

1. The utility model provides a riveting device for mounting plate oil pump filter screen shell which characterized in that: comprises a bracket (2), a clamp part, an auxiliary pressing part and a riveting part; the bracket (2) comprises an upper fixing plate, a side vertical plate and a lower fixing plate; the clamp component comprises a clamp plate (17), a corner cylinder (18) and a first lifting cylinder (10); the auxiliary pressing part comprises a second lifting cylinder (1), a pressing plate and a pressing nail (3); the first lifting cylinder (10) and the second lifting cylinder (1) are fixed on an upper fixing plate of the support (2) in a mode that ejector rods face downwards, the ejector rods of the first lifting cylinder (10) are connected with a clamp plate (17), the clamp plate (17) is in a side standing state and is connected with a side vertical plate of the support (2) through a linear guide rail (8), a plurality of corner cylinders (18) are arranged on the outward surface of the clamp plate (17), the ejector rods of the second lifting cylinder (1) are connected with a pressing plate, and a plurality of downward pressing nails (3) are arranged on the pressing plate; the riveting component comprises a riveting cylinder (4), a lower template (6), a lower filter screen shell die (7), a riveting head (11) and a riveting pull rod (14); the riveting cylinder (4) is fixed on the lower surface of a lower fixing plate of the support (2), a lower template (6) is mounted on the upper surface of the lower fixing plate, a lower filter screen shell die (7) is arranged in the middle of the lower template (6), a plurality of special-shaped through holes are formed in the lower template (6) at intervals along the periphery of the lower filter screen shell die (7), one side, facing the lower filter screen shell die (7), of the hole wall of each special-shaped through hole is of a vertical structure, and one side, facing outwards, of the hole wall is of an inclined plane structure, so that the whole shape of each special-shaped through hole is large at the top and small at the bottom; all install one riveting head (11) in every dysmorphism through-hole, the upper portion of riveting head (11) medial surface is equipped with the pressure mouth that extends to the inboard, the lower part of riveting head (11) lateral surface is equipped with a gyro wheel, this gyro wheel can cooperate with the inclined plane contact of dysmorphism through-hole, riveting pull rod (14) are all installed to the lower part of every riveting head (11), the lower extreme of riveting pull rod (14) passes behind the special-shaped through-hole of lower bolster (6) and the through-hole of bottom plate with riveting cylinder swing joint, under the drive of riveting cylinder (4), riveting pull rod (14) and riveting head (11) can reciprocate, riveting head (11) are at the in-process that moves down, the inclined plane of dysmorphism through-hole can force riveting head (11) to lean on gradually to the outer peripheral face of filter screen shell lower mould (7).

2. The riveting and pressing device for the filter screen shell of the oil pump of the mounting machine according to claim 1, characterized in that: the riveting component also comprises a pull rod connecting plate (16) and a belleville spring (15), a plurality of through holes corresponding to the riveting pull rod (14) are formed in the pull rod connecting plate (16), the lower end of the riveting pull rod (14) penetrates out of the through holes of the pull rod connecting plate (16), then the belleville spring (15) is sleeved on the riveting pull rod connecting plate and fixed through a locking nut, and the riveting pull rod (14) is in large clearance fit with the through holes of the pull rod connecting plate (16); the pull rod connecting plate (16) is erected on the cylinder body of the riveting cylinder (4) through a plurality of upright posts and is connected into a whole through bolts, and the ejector rod of the riveting cylinder (4) is fixed on the lower surface of the lower fixing plate of the bracket (2) through the connector (5).

3. Riveting device for mounting machine oil pump filter screen housings according to claim 1 or 2, characterized in that: the inclined plane structure of the wall of the special-shaped through hole is provided by a movable adjustable inclined wedge (13).

4. Riveting device for mounting machine oil pump filter screen housings according to claim 1 or 2, characterized in that: and the roller at the lower part of the riveting head (11) is a rolling bearing (12).

5. Riveting device for mounting machine oil pump filter screen housings according to claim 1 or 2, characterized in that: and a radial spring (19) is installed at the position of the outer peripheral surface of the filter screen shell lower die (7) corresponding to each riveting head (11).

6. Riveting device for mounting machine oil pump filter screen housings according to claim 1 or 2, characterized in that: the clamp plate (17) comprises an inner side plate and an outer side plate which are connected with each other, a buffer spring (9) is arranged between the inner side plate and the outer side plate, the inner side plate is connected with a mandril of the first lifting cylinder (10), and the corner cylinder (18) is installed on the outer side plate.

Technical Field

The invention relates to the technical field of mechanical assembly, in particular to a riveting device for mounting an oil pump filter screen shell.

Background

When the engine oil pump sucks oil from the oil pan, an extended oil suction pipe structure is commonly used, as shown in fig. 1, the oil suction pipe is usually integrated with the pump cover, or the upper end of the oil suction pipe is connected with the pump cover, and the lower end of the oil suction pipe, i.e. the suction end, must be provided with a filter screen and a filter screen shell as shown in fig. 2. The filter screen shell is located in the outermost side as a protection part of the filter screen, and in the assembling process, a plurality of buckles on the filter screen shell need to be changed from vertical to bent, so that the filter screen and the filter screen shell are firmly buckled on the oil suction pipe. At present, the assembly of the hasp mainly depends on a manual or automatic riveting device, and the following problems respectively exist: 1) the manual device has higher labor intensity and unstable assembly quality, and is easy to be buckled in a missing way or not tightly buckled; 2) because the filter screen shell and the hasps on the filter screen shell are both formed by punching, the oil suction pipes for fixing the hasps are basically in a die-cast blank state, the precision is not high, the batch difference is large, and the press-fitting quality of each hasp cannot be ensured by the conventional riveting device.

Disclosure of Invention

The invention aims to solve the technical problem of providing a riveting device for mounting an oil pump filter screen shell, which ensures that the hasp of the filter screen shell does not have the phenomena of neglected mounting and untight buckling.

In order to solve the technical problems, the invention adopts the technical scheme that: a riveting device for mounting an oil pump filter screen shell of a machine comprises a bracket, a clamp part, an auxiliary pressing part and a riveting part; the bracket comprises an upper fixing plate, a side vertical plate and a lower fixing plate; the clamp component comprises a clamp plate, a corner cylinder and a first lifting cylinder; the auxiliary pressing part comprises a second lifting cylinder, a pressing plate and a pressing nail; the first lifting cylinder and the second lifting cylinder are fixed on an upper fixing plate of the support in a mode that the ejector rods face downwards, the ejector rods of the first lifting cylinder are connected with a clamp plate, the clamp plate is in a side standing state and is connected with a side standing plate of the support through linear guide rails, a plurality of corner cylinders are arranged on the outward surface of the clamp plate, the ejector rods of the second lifting cylinder are connected with a pressing plate, and a plurality of downward pressing nails are arranged on the pressing plate; the riveting component comprises a riveting cylinder, a lower template, a lower filter screen shell die, a riveting head and a riveting pull rod; the riveting cylinder is fixed on the lower surface of a lower fixing plate of the bracket, a lower template is mounted on the upper surface of the lower fixing plate, a lower filter screen shell die is arranged in the middle of the lower template, a plurality of special-shaped through holes are formed in the lower template at intervals along the periphery of the lower filter screen shell die, one side, facing the lower filter screen shell die, of the hole wall of each special-shaped through hole is of a vertical structure, and one side, facing outwards, of the hole wall of each special-shaped through hole is of an inclined plane structure, so that the overall shape of each special-shaped through hole is large at the top and small at the bottom; all install a riveting head in every dysmorphism through-hole, the upper portion of riveting head medial surface is equipped with the pressure mouth that extends to the inboard, the lower part of riveting head lateral surface is equipped with a gyro wheel, this gyro wheel can contact the cooperation with the inclined plane of dysmorphism through-hole, the riveting pull rod is all installed to the lower part of every riveting head, the lower extreme of riveting pull rod pass behind the special-shaped through-hole of lower bolster and the through-hole of bottom plate with riveting cylinder swing joint, under the drive of riveting cylinder, riveting pull rod and riveting head can reciprocate, the riveting head is at down in-process, the inclined plane of dysmorphism through-hole can force the riveting head to lean on the outer peripheral face to the filter screen shell lower mould gradually.

The operation process of the riveting device comprises the following steps: 1) manually hanging the pump cover integrated with the oil suction pipe on a clamp plate; 2) manually placing the filter screen shell and the filter screen into the lower filter screen shell mold; 3) pressing a start key to enable the corner cylinder to clamp the pump cover, driving the clamp plate to move downwards by the first lifting cylinder, sending the lower end of the oil suction pipe into the filter screen shell of the lower template, and pressing the pressing nail on the oil suction pipe by the second lifting cylinder in a descending manner to enable the lower end surface of the oil suction pipe to be attached to the filter screen shell; 4) the riveting cylinder is started to drag the riveting pull rod and the riveting head to move downwards, and the riveting head is inclined inwards and pressed downwards under the action of the inclined plane of the special-shaped through hole and the roller wheel, so that each hasp on the filter screen shell is tightly buckled on the oil suction pipe; 5) the riveting cylinder returns to push the riveting pull rod and the riveting head to be loosened upwards, the second lifting cylinder 1 moves upwards to loosen the pressing head, the first lifting cylinder drives the clamp plate 17 and the workpiece to move upwards, the corner cylinder is loosened, the pump cover component is manually taken down, and the whole riveting action is completed.

Furthermore, the riveting component also comprises a pull rod connecting plate and a belleville spring, the pull rod connecting plate is provided with a plurality of through holes corresponding to the riveting pull rod, the lower end of the riveting pull rod penetrates out of the through holes of the pull rod connecting plate, then the belleville spring is sleeved on the riveting pull rod and fixed by a locking nut, and the riveting pull rod is in large clearance fit with the through holes of the pull rod connecting plate; the pull rod connecting plate is erected on the cylinder body of the riveting cylinder through a plurality of upright posts and connected into a whole through bolts, and the ejector rod of the riveting cylinder is fixed on the lower surface of the lower support fixing plate through a connector. In the technical scheme, the large gap between the riveting pull rod and the through hole of the pull rod connecting plate can enable the riveting pull rod to incline to a certain degree relative to the pull rod connecting plate when the riveting pull rod is stressed downwards, so that the inner side surface of the riveting head is ensured to be tightly attached to the filter screen shell; the elasticity of the belleville spring can force the riveting pull rod to return from the inclined state when the riveting cylinder moves upwards, and the inclined plane of the special-shaped through hole can force the riveting head to drive the riveting pull rod to ascend. That is to say, when moving downwards, riveting pull rod and riveting head are necessarily in the tilt state, and when making riveting pull rod and riveting head go back, they just can rise naturally, and this is the ingenious point of this technical scheme.

Furthermore, the inclined plane structure of the wall of the special-shaped through hole is provided by a movable adjustable inclined wedge.

Preferably, the roller at the lower part of the riveting head is a rolling bearing.

Furthermore, a radial spring is installed on the outer peripheral surface of the filter screen shell lower die corresponding to the position of each riveting head. When the riveting cylinder goes upward and returns, the pretightening force of the radial spring is matched with the inclined plane of the special-shaped through hole, so that the riveting head can be pushed to move outwards and upwards.

Further, the clamp plate comprises an inner side plate and an outer side plate which are connected with each other, a buffer spring is arranged between the inner side plate and the outer side plate, the inner side plate is connected with a mandril of the first lifting cylinder, and the corner cylinder is installed on the outer side plate.

The riveting device provided by the invention has the advantages of ingenious structure, simplicity in operation and convenience in adjustment, and the riveting efficiency and quality are very good, so that the requirement of mass production can be completely met.

Drawings

FIG. 1 is a schematic view of a structure in which an oil suction pipe and a pump cover are integrated;

FIG. 2 is a schematic structural view of a filter screen shell;

fig. 3 is a schematic side view of a riveting device according to an embodiment of the invention;

fig. 4 is a schematic cross-sectional structural view of a riveting device in an embodiment of the invention;

fig. 5 is a schematic perspective view of a riveting device in an embodiment of the invention;

fig. 6 is a schematic perspective view of a riveting component according to an embodiment of the invention;

FIG. 7 is a schematic cross-sectional view of a riveting component according to an embodiment of the invention;

the reference signs are:

1-second lifting cylinder 2-support

3-pressure head 4-riveting cylinder

5-connecting head 6-lower template

7-lower die of filter screen shell 8-linear guide rail

9-buffer spring 10-first lifting cylinder

11-riveting head 12-rolling bearing

13-adjustable inclined wedge 14-riveting pull rod

15-belleville spring 16-pull rod connecting plate

17-clamp plate 18-corner cylinder

19-radial spring.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.

As shown in fig. 3 to 7, a riveting device for mounting an oil pump filter screen shell comprises a bracket 2, a clamp part, an auxiliary pressing part and a riveting part; the bracket 2 comprises an upper fixing plate, a side vertical plate and a lower fixing plate; the clamp component comprises a clamp plate 17, a corner cylinder 18 and a first lifting cylinder 10; the auxiliary pressing part comprises a second lifting cylinder 1, a pressing plate and a pressing nail 3; the first lifting cylinder 10 and the second lifting cylinder 1 are fixed on an upper fixing plate of the support 2 in a mode that ejector rods face downwards, the ejector rods of the first lifting cylinder 10 are connected with a clamp plate 17, the clamp plate 17 is in a side standing state and is connected with a side standing plate of the support 2 through a linear guide rail 8, a plurality of corner cylinders 18 are arranged on one outward side of the clamp plate 17, the ejector rods of the second lifting cylinder 1 are connected with a pressing plate, and a plurality of downward pressing nails 3 are arranged on the pressing plate; the riveting component comprises a riveting cylinder 4, a lower template 6, a lower filter screen shell die 7, a riveting head 11, a riveting pull rod 14, a pull rod connecting plate 16 and a belleville spring 15; the pull rod connecting plate 16 is erected on the cylinder body of the riveting cylinder 4 through a plurality of upright posts and is connected into a whole through bolts, and the ejector rod of the riveting cylinder 4 is fixed on the lower surface of the lower fixing plate of the bracket through the connector 5; the upper surface of the lower fixing plate is provided with a lower template 6, the middle part of the lower template 6 is provided with a lower filter screen shell die 7, a plurality of special-shaped through holes are arranged at intervals at the position of the lower template 6 along the periphery of the lower filter screen shell die 7, one side of the hole wall of each special-shaped through hole facing the lower filter screen shell die 7 is of a vertical structure, and the side of the hole wall facing outwards is of an inclined plane structure, so that the overall shape of each special-shaped through hole is large at the top and small at the bottom, and the inclined plane structure of the hole wall is provided by a movable adjustable inclined wedge 13; a riveting head 11 is arranged in each special-shaped through hole, a radial spring 19 is arranged on the outer peripheral surface of the lower die 7 of the filter screen shell corresponding to the position of each riveting head 11, a pressing nozzle extending inwards is arranged on the upper part of the inner side surface of each riveting head 11, a rolling bearing 12 is arranged on the lower part of the outer side surface of each riveting head 11, the outer peripheral surface of each rolling bearing 12 can be in contact fit with the inclined surface of each special-shaped through hole, a riveting pull rod 14 is arranged on the lower part of each riveting head 11, a plurality of through holes corresponding to the riveting pull rods 14 are arranged on the lower fixing plate and the pull rod connecting plate 16, a gasket and a butterfly spring 15 are sleeved on the lower end of each riveting pull rod 14 after sequentially passing through the special-shaped through hole of the lower die plate 6, the through hole of the lower fixing plate and the through hole of the pull rod connecting plate 16 and are fixed by a locking nut, and the riveting pull rod 14 is in large clearance fit with each through hole; the riveting pull rod 14 and the riveting head 11 can move up and down under the driving of the riveting cylinder 4, and the inclined surface of the special-shaped through hole can force the riveting head 11 to gradually lean against the outer peripheral surface of the lower filter screen shell die 7 in the downward process of the riveting head 11.

As a further alternative, as shown in fig. 4, the clamp plate 17 comprises an inner plate and an outer plate connected to each other, a buffer spring 9 is provided between the inner plate and the outer plate, the inner plate is connected to the ram of the first lifting cylinder 10, and the corner cylinder 18 is mounted on the outer plate.

The operation process of the riveting device comprises the following steps: 1) manually hanging the pump cover integrated with the oil suction pipe on the clamp plate 17; 2) manually placing the filter screen shell and the filter screen into the lower filter screen shell mold 7; 3) pressing a start key to enable the corner cylinder 18 to clamp the pump cover, driving the clamp plate 17 to move downwards by the first lifting cylinder 10, sending the lower end of the oil suction pipe into the filter screen shell of the lower template 6, descending the second lifting cylinder 1 to press the press nail 3 on the oil suction pipe, and enabling the lower end face of the oil suction pipe to be attached to the filter screen shell; 4) the riveting cylinder 4 is started to drag the riveting pull rod 14 and the riveting head 11 to move downwards, and the riveting head 11 is inclined inwards and pressed downwards under the action of the inclined plane of the special-shaped through hole and the rolling bearing 12, so that each hasp on the filter screen shell is tightly buckled on the oil suction pipe; 5) the riveting cylinder 4 retracts, the riveting pull rod 14 and the riveting head 11 are pushed to be loosened upwards, the second lifting cylinder 1 moves upwards to loosen the pressing head 3, the first lifting cylinder 11 drives the clamp plate 17 and the workpiece to move upwards, the corner cylinder 18 is loosened, the pump cover component is manually taken down, and the whole riveting action is completed.

As shown in fig. 6, the large gap between the riveting pull rod 14 and the through hole of the pull rod connecting plate 16 enables the riveting pull rod 14 to incline to a certain degree relative to the pull rod connecting plate 16 when the riveting pull rod is forced to move downwards, so as to ensure that the inner side surface of the riveting head 11 is tightly attached to the filter screen shell; the elasticity of the belleville spring 15 can force the riveting pull rod 14 to return from the inclined state when the riveting cylinder 4 moves upwards, and the inclined surface of the special-shaped through hole can force the riveting head 11 to drive the riveting pull rod 14 to ascend. That is, the rivet pressing rod 14 and the rivet pressing head 11 are necessarily in an inclined state when moving downwards, and when the rivet pressing rod 14 and the rivet pressing head 11 are rightly turned, they naturally rise, which is the ingenious point of the technical solution. And the position that the outer peripheral face of the lower filter screen shell die 7 corresponds to each riveting head is provided with a radial spring 19, and when the riveting cylinder 4 returns upwards, the pretightening force of the radial spring 19 is matched with the inclined plane of the special-shaped through hole, so that the riveting head 11 can be pushed to move upwards. Therefore, the riveting device provided by the embodiment has the advantages of ingenious structure, simplicity in operation and convenience in adjustment, and the riveting efficiency and quality are very good, so that the requirement of mass production can be completely met.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.