阅读说明：本技术 一种油压组件及精密冲裁油压机 (Oil pressure assembly and fine blanking oil press ) 是由 莫敏杰 梁毅强 于 2021-10-18 设计创作，主要内容包括：本发明属于精密冲裁设备领域,具体为一种油压组件及精密冲裁油压机,包括缸体、活塞、横梁、顶杆筒和承力杆；缸体中设有油腔,活塞设于油腔中并与油腔动密封；缸体与横梁连接,横梁中设有第一通孔,顶杆筒设于第一通孔中并与第一通孔滑动连接,顶杆筒能够被活塞推动,顶杆筒能够在第一通孔中移动一定的距离；承力杆依次穿过活塞和顶杆筒,承力杆与缸体固定连接,活塞承力杆动密封,第一通孔能够将活塞阻挡在第一通孔外。该油压组件及精密冲裁油压机的好处是能够对模板中部进行支撑。(The invention belongs to the field of fine blanking equipment, and particularly relates to an oil pressure assembly and a fine blanking oil press, which comprise a cylinder body, a piston, a cross beam, a top rod cylinder and a bearing rod; an oil cavity is arranged in the cylinder body, and the piston is arranged in the oil cavity and is in dynamic seal with the oil cavity; the cylinder body is connected with the cross beam, a first through hole is formed in the cross beam, the ejector rod cylinder is arranged in the first through hole and is in sliding connection with the first through hole, the ejector rod cylinder can be pushed by the piston, and the ejector rod cylinder can move in the first through hole for a certain distance; the bearing rod sequentially penetrates through the piston and the ejector rod cylinder, the bearing rod is fixedly connected with the cylinder body, the piston bearing rod is in dynamic seal, and the first through hole can block the piston outside the first through hole. The benefit of this oil pressure subassembly and fine blanking hydraulic press can support the template middle part.)

1. An oil pressure assembly characterized by: comprises a cylinder body, a piston, a cross beam, a top rod cylinder and a bearing rod;

an oil cavity is arranged in the cylinder body, and the piston is arranged in the oil cavity and is in dynamic seal with the oil cavity;

the cylinder body is connected with the cross beam, a first through hole is formed in the cross beam, the ejector rod cylinder is arranged in the first through hole and is in sliding connection with the first through hole, the ejector rod cylinder can be pushed by the piston, and the ejector rod cylinder can move in the first through hole for a certain distance;

the bearing rod sequentially penetrates through the piston and the ejector rod cylinder, the bearing rod is fixedly connected with the cylinder body, the piston and the bearing rod are in dynamic seal, and the piston can be blocked outside the first through hole by the first through hole.

2. The oil pressure assembly of claim 1, wherein: the ejector rod cylinder is characterized by also comprising a base plate, an ejector rod connecting plate and a connecting plate, wherein the connecting plate and the piston are respectively arranged at the upper end and the lower end of the ejector rod cylinder; the base plate is fixedly connected with the cross beam, a second through hole is formed in the base plate, the ejector rod connecting plate is arranged in the second through hole and is in sliding connection with the base plate, the ejector rod connecting plate can slide for a certain distance relative to the second through hole, the bearing rod sequentially penetrates through the connecting plate and the ejector rod connecting plate, and the ejector rod connecting plate and the connecting plate are both in sliding connection with the bearing rod; the ejector rod connecting plate is fixedly connected with the connecting plate, and the connecting plate is abutted against the ejector rod barrel; the connecting plate can enter the first through hole, and the ejector rod connecting plate can be blocked outside the first through hole by the first through hole.

3. The oil pressure assembly of claim 2, wherein: the outer edge of the ejector rod connecting plate protrudes to the outer side of the connecting plate and the outer side of the ejector rod cylinder, and the outer edge of the ejector rod cylinder protrudes to the outer side of the connecting plate; the base plate is provided with a first step, the ejector rod connecting plate is provided with a first convex ring, the first convex ring is arranged between the first step and the connecting plate, and the first step and the first convex ring can be pressed and connected with each other; and a second convex ring is arranged on the ejector rod cylinder, a second step is arranged in the cross beam, the second convex ring is adjacent to the piston, and the second step can be in compression joint with the second convex ring.

4. The oil pressure assembly of claim 2, wherein: the bearing rod comprises a connecting part and a bearing part, the connecting part is connected with the cylinder body, the bearing part is connected with the connecting part, the ejector rod connecting plate is in sliding connection with the bearing part, and the piston and the ejector rod cylinder are in sliding connection with the connecting part.

5. The oil pressure assembly of claim 2, wherein: still include proximity switch, proximity switch with the crossbeam is connected, proximity switch locates the side of ejector pin section of thick bamboo, the piston can with proximity switch mutual crimping.

6. The oil pressure assembly of claim 1, wherein: the cylinder body is provided with a connecting convex ring, the beam is provided with a sinking platform, and the outer side wall of the connecting convex ring is connected with the side wall of the sinking platform; and a static sealing ring is arranged between the bearing rod and the cylinder body, a dynamic sealing ring is arranged between the bearing rod and the piston, and a dynamic sealing ring is arranged between the piston and the cylinder body.

7. The utility model provides a fine blanking hydraulic press which characterized in that: comprising an oil hydraulic assembly according to any one of claims 1 to 5, the number of said oil hydraulic assemblies being two, said two oil hydraulic assemblies being arranged one above the other; in the above one oil pressure unit, the cylinder block is provided above the cross member; in the next oil pressure assembly, the cylinder body is arranged below the cross beam; the hydraulic oil press is characterized by further comprising a rack, and the two oil pressure assemblies are connected with the rack through cross beams.

8. The fine blanking oil press of claim 7, wherein: the device also comprises a flange, an outer cylinder barrel, a positioning column and a base;

the base is connected with the rack, the outer cylinder barrel is connected with the top of the base, an outer oil cavity is formed between the outer cylinder barrel and the base, and a cylinder body of the next oil pressure assembly is arranged in the outer oil cavity and is in dynamic seal with the outer oil cavity;

the flange is sleeved on the lower cylinder body and is in dynamic seal with the lower cylinder body, and the flange is connected with the top of the outer cylinder barrel;

and a connecting blind hole is formed in the cylinder body of the next oil pressure assembly, the positioning column is in dynamic seal with the connecting blind hole, and the bottom of the positioning column is fixedly connected with the base.

9. The fine blanking oil press of claim 8, wherein: the connecting column is arranged between the base and the upper crossbeam, the base and the upper crossbeam are both connected with the connecting column, and the lower crossbeam is in sliding connection with the lower guide column.

Technical Field

The invention belongs to the field of fine blanking equipment, and particularly relates to an oil pressure assembly and a fine blanking oil press.

Background

The fine blanking equipment in the prior art comprises an oil press, wherein the oil press comprises an upper oil pressure assembly and a lower oil pressure assembly, the upper oil pressure assembly is used for connecting an upper die of a blanking die, and the lower oil pressure assembly is used for connecting a lower die of the blanking die. The blanking die comprises a die plate and an ejector rod, wherein the middle part of the die plate is provided with an ejector rod hole, the ejector rod penetrates through the ejector rod hole, and the ejector rod can move up and down relative to the ejector rod hole; the oil pressure assembly comprises an oil cylinder, a cross beam and a base plate which are connected in sequence, through holes are formed in the middle parts of the cross beam and the base plate, and the ejector rod can penetrate through the through holes; the edge part of the template of the blanking die is connected with the backing plate, and the ejector rod of the blanking die is pushed to move in the through hole in the moving process of the piston, so that the ejector rod can eject a product. The problems existing in the prior art are that the middle part of the template is adjacent to the through hole, the middle part of the template lacks of support, and the middle part of the template is easy to deform.

Therefore, the prior art is in need of improvement.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the middle part of the template is easy to deform.

In order to achieve the purpose, the specific technical scheme of the invention is as follows:

an oil pressure assembly comprises a cylinder body, a piston, a cross beam, a top rod cylinder and a bearing rod; an oil cavity is arranged in the cylinder body, and the piston is arranged in the oil cavity and is in dynamic seal with the oil cavity; the cylinder body is connected with the cross beam, a first through hole is formed in the cross beam, the ejector rod cylinder is arranged in the first through hole and is in sliding connection with the first through hole, the ejector rod cylinder can be pushed by the piston, and the ejector rod cylinder can move in the first through hole for a certain distance; the bearing rod sequentially penetrates through the piston and the ejector rod cylinder, the bearing rod is fixedly connected with the cylinder body, the piston and the bearing rod are in dynamic seal, and the piston can be blocked outside the first through hole by the first through hole.

As an optional technical scheme, the device also comprises a base plate, a mandril connecting plate and a connecting plate, wherein the connecting plate and the piston are respectively arranged at the upper end and the lower end of the mandril barrel; the base plate is fixedly connected with the cross beam, a second through hole is formed in the base plate, the ejector rod connecting plate is arranged in the second through hole and is in sliding connection with the base plate, the ejector rod connecting plate can slide for a certain distance relative to the second through hole, the bearing rod sequentially penetrates through the connecting plate and the ejector rod connecting plate, and the ejector rod connecting plate and the connecting plate are both in sliding connection with the bearing rod; the ejector rod connecting plate is fixedly connected with the connecting plate, and the connecting plate is abutted against the ejector rod barrel; the connecting plate can enter the first through hole, and the ejector rod connecting plate can be blocked outside the first through hole by the first through hole.

As a further preferred technical scheme, the bearing rod comprises a connecting portion and a bearing portion, the connecting portion is connected with the cylinder body, the bearing portion is connected with the connecting portion, the ejector rod connecting plate and the connecting plate are both in sliding connection with the bearing portion, and the piston and the ejector rod cylinder are both in sliding connection with the connecting portion.

As an optional technical scheme, the device further comprises a proximity switch, the proximity switch is connected with the cross beam, the proximity switch is arranged at the side of the ejector rod cylinder, and the piston and the proximity switch can be in mutual pressure connection.

As an optional technical scheme, a connecting convex ring is arranged on the cylinder body, a sinking platform is arranged on the cross beam, and the outer side wall of the connecting convex ring is connected with the side wall of the sinking platform; and a static sealing ring is arranged between the bearing rod and the cylinder body, a dynamic sealing ring is arranged between the bearing rod and the piston, and a dynamic sealing ring is arranged between the piston and the cylinder body.

The fine blanking oil press comprises the oil pressure components, wherein the number of the oil pressure components is two, and the two oil pressure components are arranged up and down; in the above one oil pressure unit, the cylinder block is provided above the cross member; in the next oil pressure assembly, the cylinder body is arranged below the cross beam; the hydraulic oil press is characterized by further comprising a rack, and the two oil pressure assemblies are connected with the rack through cross beams.

As a further preferred technical scheme, the device also comprises a flange, an outer cylinder barrel, a positioning column and a base; the base is connected with the rack, the outer cylinder barrel is connected with the top of the base, an outer oil cavity is formed between the outer cylinder barrel and the base, and a cylinder body of the next oil pressure assembly is arranged in the outer oil cavity and is in dynamic seal with the outer oil cavity; the flange is sleeved on the lower cylinder body and is in dynamic seal with the lower cylinder body, and the flange is connected with the top of the outer cylinder barrel; and a connecting blind hole is formed in the cylinder body of the next oil pressure assembly, the positioning column is in dynamic seal with the connecting blind hole, and the bottom of the positioning column is fixedly connected with the base.

As a further preferable technical scheme, the guide device further comprises a connecting column, wherein the connecting column is arranged between the base and the upper crossbeam, the base and the upper crossbeam are both connected with the connecting column, and the lower crossbeam is in sliding connection with the lower guide column.

The invention has the beneficial effects that: the cross beam is directly or indirectly fixedly connected with a template of the mold, and the ejector rod cylinder is directly or indirectly connected with the ejector rod of the mold. When the mold is closed, the ejector rod barrel partially retreats into the cylinder body to avoid the mold ejector rod, the bearing rod is fixedly connected with the cylinder body, and the bearing rod is used for being abutted against the mold plate of the mold to support the middle part of the mold plate and avoid the middle part of the mold plate from deforming. When the die is opened, the piston is used for pushing the ejector rod cylinder and the ejector rod to move so as to achieve the effect of ejecting a precision stamping product, and the bearing rod does not move along with the piston. The middle part of the template of the die is supported by the bearing rods, so that the template of the die can be prevented from deforming.

Drawings

FIG. 1 is a schematic illustration of an oil pressure assembly of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

fig. 4 is a schematic view of a fine blanking hydraulic press according to the present invention.

In the figure: 1-an oil pressure component, 11-a cylinder body, 111-a connecting blind hole, 112-a connecting convex ring, 12-a piston, 13-a cross beam, 130-a first through hole, 131-a second step, 132-a sinking platform, 14-a mandril barrel, 141-a second convex ring, 15-a force bearing rod, 151-a connecting part, 152-a force bearing part, 153-a connecting nail, 16-a backing plate, 161-a first step, 17-a mandril connecting plate, 171-a first convex ring, 18-a connecting plate, 19-a proximity switch, 10-a movable sealing ring, 101-a static sealing ring, 2-a rack, 3-a flange, 4-an outer cylinder barrel, 5-a positioning column, 6-a base, 7-an upper connecting column and 8-a lower guiding column.

Detailed Description

The invention is described in detail below with reference to specific embodiments.

As shown in fig. 1 and 3, the present invention is an embodiment of an oil pressure unit 1, specifically:

an oil pressure assembly 1 comprises a cylinder body 11, a piston 12, a cross beam 13, a top rod cylinder 14 and a force bearing rod 15; an oil cavity is formed in the cylinder body 11, the piston 12 is arranged in the oil cavity and is in dynamic seal with the oil cavity, the cylinder body 11 is connected with the cross beam 13, a first through hole 130 is formed in the cross beam 13, the ejector rod cylinder 14 is arranged in the first through hole 130 and is in sliding connection with the first through hole 130, the ejector rod cylinder 14 can be pushed by the piston 12, the ejector rod cylinder 14 can move for a certain distance in the first through hole 130, the bearing rod 15 sequentially penetrates through the piston 12 and the ejector rod cylinder 14, the bearing rod 15 is fixedly connected with the cylinder body 11, the piston 12 is in dynamic seal with the bearing rod 15, and the first through hole 130 can block the piston 12 out of the first through hole 130.

In the present invention, the cross beam 13 is used to be directly or indirectly fixedly connected with the die plate of the die, and is directly or indirectly connected with the die ejector by the ejector pin cylinder 14. The bearing rod 15 is used for being abutted against the middle part of a template of the die, and because the bearing rod 15 is connected with the cylinder body 11, the position of the bearing rod 15 is unchanged in the process of stamping a product, and the bearing rod 15 can support the middle part of the template to avoid the middle part of the template from deforming; when the mold is closed, the ejector rod cylinder 14 and the piston 12 can move together and partially retreat into the cylinder body 11 to avoid the mold ejector rod; since the first through hole 130 can block the piston 12 out of the first through hole 130, the piston 12 cannot slip out of the oil chamber. When the die is opened, the piston 12 is used for pushing the ejector rod cylinder 14 and the die ejector rod to move for a certain distance so as to achieve the effect of ejecting a precision stamping product. The middle part of the template of the mould is supported by the bearing rod 15, so that the middle part of the template of the mould can be prevented from deforming.

In the preferred embodiment, the device further comprises a backing plate 16, a mandril connecting plate 17 and a connecting plate 18, wherein the connecting plate 18 and the piston 12 are respectively arranged at the upper end and the lower end of the mandril cylinder 14; the base plate 16 is fixedly connected with the cross beam 13, a second through hole is formed in the base plate 16, the ejector rod connecting plate 17 is arranged in the second through hole and is in sliding connection with the base plate 16, the ejector rod connecting plate 17 can slide for a certain distance relative to the second through hole, the bearing rod 15 sequentially penetrates through the connecting plate 18 and the ejector rod connecting plate 17, the ejector rod connecting plate 17 and the connecting plate 18 are both in sliding connection with the bearing rod 15, the ejector rod connecting plate 17 is fixedly connected with the connecting plate 18, and the connecting plate 18 is abutted to the ejector rod barrel 14; the connecting plate 18 can enter the first through hole 130, and the first through hole 130 can block the jack connecting plate 17 out of the first through hole 130. In this embodiment, the backing plate 16 is used to connect the die plate of the die and the cross beam 13, the ejector rod connecting plate 17 is used to abut against the ejector rods of the die, and the connecting plate 18 can enter the first through hole 130, so that the stroke ranges of the connecting plate 18 and the ejector rod connecting plate 17 are longer.

Further, the outer edge of the ejector pin connecting plate 17 projects to the outside of the connecting plate 18 and the outside of the ejector pin barrel 14, and the outer edge of the ejector pin barrel 14 projects to the outside of the connecting plate 18; the cushion plate 16 is provided with a first step 161, the ejector rod connecting plate 17 is provided with a first convex ring 171, the first convex ring 171 is arranged between the first step 161 and the connecting plate 18, and the first step 161 and the first convex ring 171 can be pressed and connected with each other; the ejector rod cylinder 14 is provided with a second convex ring 141, the cross beam 13 is provided with a second step 131, the second convex ring 141 is adjacent to the piston 12, and the second step 131 can be in pressure connection with the second convex ring 141. Since the outer edge of the ejector rod cylinder 14 protrudes outside the connecting plate 18, the connecting plate 18 can enter the first through hole 130 on the cross beam 13 along with the ejector rod cylinder 14, and since the outer edge of the ejector rod connecting plate 17 protrudes outside the connecting plate 18 and outside the ejector rod cylinder 14, the outer edge of the ejector rod connecting plate 17 cannot enter the first through hole 130, the ejector rod connecting plate 17 can only move outside the first through hole 130, and the first step 161 on the backing plate 16 is used for limiting the position of the first convex ring 171 on the ejector rod connecting plate 17, so that the first convex ring 171 can only move between the first step 161 and the first through hole 130; in addition, the position of the second collar 141 on the ejector rod cylinder 14 is restricted by the second step 131 on the cross member 13, so that the position of the second collar 141 is restricted between the piston 12 and the second step 131 to prevent the ejector rod cylinder 14 from being disengaged from the first through hole 130.

In a further preferred embodiment, the force-bearing rod 15 comprises a connecting portion 151 and a force-bearing portion 152, the connecting portion 151 is connected with the cylinder 11, the force-bearing portion 152 is connected with the connecting portion 151, the ejector rod connecting plate 17 and the connecting plate 18 are both slidably connected with the force-bearing portion 152, and the piston 12 and the ejector rod cylinder 14 are both slidably connected with the connecting portion 151. The bearing part 152 is used for directly abutting against a template of a mold, the material of the bearing part 152 is required to be a material with higher rigidity, the rigidity requirement of the connecting part 151 on the material is not particularly high, and the bearing rod 15 is arranged into the bearing part 152 and the connecting part 151, so that the material cost is reduced.

In an alternative embodiment, a proximity switch 19 is further included, the proximity switch 19 is connected with the beam 13, the proximity switch 19 is arranged at the side of the ejector rod cylinder 14, and the piston 12 and the proximity switch 19 can be pressed against each other. The proximity switch 19 is used to detect the position of the piston 12, and the distance between the piston 12 and the cross beam 13 can be determined according to the detection signal of the proximity switch 19 to avoid the input oil pressure from being too large.

In an optional embodiment, the cylinder body 11 is provided with a connecting convex ring 112, the beam 13 is provided with a sinking platform 132, and the outer side wall of the connecting convex ring 112 is connected with the side wall of the sinking platform 132; a static sealing ring 101 is arranged between the bearing rod 15 and the cylinder body 11, a dynamic sealing ring 10 is arranged between the bearing rod 15 and the piston 12, and the dynamic sealing ring 10 is arranged between the piston 12 and the cylinder body 11. The connecting convex ring 112 and the sinking platform 132 cooperate with each other to achieve the mutual positioning between the beam 13 and the cylinder 11. The dynamic seal ring 10 and the static seal ring 101 are used to prevent oil leakage.

As shown in fig. 4, the fine blanking hydraulic press according to an embodiment of the present invention specifically includes:

a fine blanking oil press comprises two oil pressure assemblies 1, wherein the two oil pressure assemblies 1 are arranged in an up-down opposite manner; in the upper oil hydraulic assembly 1, the cylinder 11 is arranged above the cross beam 13; in the next piece of hydraulic assembly 1, the cylinder 11 is arranged below the cross beam 13; still include frame 2, the crossbeam 13 of two oil pressure unit 1 all is connected with frame 2. The upper oil pressure assembly 1 is used for connecting an upper template of the stamping die, the lower oil pressure assembly 1 is used for connecting a lower template of the stamping die, and the upper bearing rod 15 and the lower bearing rod 15 are respectively used for supporting the upper template and the lower template of the stamping die.

In a preferred embodiment, the hydraulic oil cylinder further comprises a flange 3, an outer cylinder 4, a positioning column 5 and a base 6, the base 6 is connected with the frame 2, the outer cylinder 4 is connected with the top of the base 6, an outer oil cavity is formed between the outer cylinder 4 and the base 6, a cylinder body 11 of a next oil pressure assembly 1 is arranged in the outer oil cavity and is in dynamic seal with the outer oil cavity, the flange 3 is sleeved on the next cylinder body 11 and is in dynamic seal with the next cylinder body 11, the flange 3 is connected with the top of the outer cylinder 4, a connecting blind hole 111 is arranged on the cylinder body 11 of the next oil pressure assembly 1, the positioning column 5 is in dynamic seal with the connecting blind hole 111, and the bottom of the positioning column 5 is fixedly connected with the base 6. After the oil amount in the outer oil cavity is changed, the next cylinder body 11 can be lifted and lowered under the matching of the outer cylinder barrel 4, the flange 3 and the base 6 so as to realize the mold opening and closing.

Furthermore, the device also comprises a connecting column 7, wherein the connecting column 7 is arranged between the base 6 and the upper crossbeam 13, the base 6 and the upper crossbeam 13 are both connected with the connecting column 7, and the lower crossbeam 13 is in sliding connection with the connecting column 7. The connecting column 7 is used for limiting the moving direction of the lower beam 13 to be a vertical direction and guiding the opening and closing die.

The features of the embodiments and embodiments described above may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "length," "upper," "lower," "top," "bottom," "inner," "outer," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus are not to be construed 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.