CN222058607U

CN222058607U - A stamping equipment

Info

Publication number: CN222058607U
Application number: CN202323477010.8U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Zhejiang Sanhua Heat Exchanger Co ltd
Current assignee: Zhejiang Sanhua Heat Exchanger Co ltd
Priority date: 2023-12-19
Filing date: 2023-12-19
Publication date: 2024-11-26
Anticipated expiration: 2033-12-19

Abstract

The stamping equipment comprises a stamping machine, a first pushing mechanism, a first core bar, a second pushing mechanism and a push plate, wherein the stamping machine comprises a die holder, and the die holder is provided with a first side in a first direction; the first pushing mechanism is positioned on the first side of the die holder; the first core rod is arranged on the first pushing mechanism, the length direction of the first core rod extends along the first direction, and the first core rod can reciprocate along the first direction under the driving of the first pushing mechanism; the second pushing mechanism is positioned on the first side of the die holder; the push plate is arranged on the second pushing mechanism, and can reciprocate along the first direction under the driving of the second pushing mechanism. The first pushing mechanism and the second pushing mechanism of the stamping equipment are positioned on the same side of the die holder, so that the whole stamping equipment is more compact in structure.

Description

Stamping equipment

Technical Field

The application relates to the technical field of machining equipment, in particular to stamping equipment.

Background

The holes in the side walls of the tubes are mostly punched by punching equipment, for example holes in the header for plugging heat exchange tubes. The stamping equipment in the related art mostly adopts a form of combining a loading and unloading mechanism and a core bar push-pull mechanism, places a pipe fitting on the loading and unloading mechanism on one side, and the loading and unloading mechanism moves forward to push the pipe fitting to a designated position, and then the core bar push-pull mechanism on the other side inserts the core bar, and the punch press moves downward to finish stamping. After stamping is finished, the core rod push-pull mechanism withdraws the core rod, the demolding cylinder jacks up the pipe fitting, and the feeding and discharging mechanism withdraws the pipe fitting and then takes down the pipe fitting. In order to facilitate loading and unloading, the two groups of mechanisms are respectively positioned on the opposite sides of the die, so that the equipment components are relatively dispersed, and the occupied area is large.

Disclosure of utility model

Embodiments of the present application provide a press apparatus that is more compact in structure.

The stamping equipment provided by the embodiment of the application comprises: a punch press including a die holder having a first side in a first direction;

The first pushing mechanism is positioned on the first side of the die holder;

The first core rod is arranged on the first pushing mechanism, the length direction of the first core rod extends along the first direction, and the first core rod can reciprocate along the first direction under the driving of the first pushing mechanism;

The second pushing mechanism is positioned on the first side of the die holder;

The pushing plate is arranged on the second pushing mechanism, and can reciprocate along the first direction under the driving of the second pushing mechanism.

The embodiment of the application has the beneficial effects that:

When the stamping equipment provided by the embodiment of the application works, the first pushing mechanism is connected with the first core rod and used for inserting and extracting the first core rod into and out of the pipe fitting during stamping, the second pushing mechanism is connected with the push plate and used for pushing out the pipe fitting after stamping is finished, and the actions of inserting and extracting the first core rod during operation and pushing out the pipe fitting for unloading are completed on the same side of the die holder. The first pushing mechanism and the second pushing mechanism are positioned on the same side of the die holder, so that the whole stamping equipment is more compact in structure, and the occupied area of the stamping equipment can be reduced under the condition of the same volume.

In addition, the stamping equipment provided by the embodiment of the application can also have the following additional technical characteristics:

In an alternative scheme, the stamping equipment further comprises a core rod seat and a second core rod, wherein the core rod seat is directly or indirectly connected with the die holder, the length direction of the second core rod extends along the first direction, one end of the second core rod is fixedly connected with the core rod seat, and the other end of the second core rod is suspended in the die holder;

The first core rod is reciprocally movable in the first direction relative to the second core rod, and the first core rod is movable at least partially to a radial side of the second core rod.

In one alternative, the stem mount includes a first bore extending through the stem mount in the first direction, the first stem being configured to pass through the first bore and reciprocate in the first direction;

the first core rod has a first position and a second position when moving, one end of the first core rod far away from the first pushing mechanism is positioned in the first hole when in the first position, and the first core rod is positioned below at least part of the second core rod when in the second position.

In an alternative scheme, the push plate has a third position and a fourth position when moving, one side of the push plate is abutted with the core rod seat when in the third position, and the push plate is far away from the second pushing mechanism and has a preset distance with the core rod seat when in the fourth position;

Defining the length of the die holder in the first direction as L ₁, and defining the preset distance as L ₂, where L ₁ and L ₂ satisfy: 2/3 is less than or equal to L ₂/L₁ is less than or equal to 1.

In an alternative scheme, the first pushing mechanism comprises a first cylinder and a first connecting piece, the first connecting piece is directly or indirectly connected to the first cylinder, one end of the first core rod in the length direction is movably connected with the first connecting piece, the first core rod can move a preset distance relative to the first connecting piece in a second direction, and the second direction is perpendicular to the first direction.

In an alternative scheme, the first connecting piece includes the second hole, the second hole is followed first direction runs through first connecting piece, first core bar is provided with spacing portion along length direction's one end, spacing portion with second hole swing joint.

In an alternative scheme, the first pushing mechanism further comprises a first mounting seat fixedly connected to the first cylinder, the first mounting seat comprises at least two mounting grooves, the at least two mounting grooves are arranged at intervals along the first direction, and the first connecting piece is arranged in one of the mounting grooves and fixedly connected with the first mounting seat.

In an alternative scheme, the second pushing mechanism comprises a second cylinder, and the pushing plate is arranged at the end part of a piston rod of the second cylinder;

The core rod seat is provided with a notch towards one side of the push plate, and the depth of the notch in the first direction is not smaller than the thickness of the push plate.

In an alternative scheme, the stamping equipment further comprises a first frame body and a second connecting piece, the first air cylinder and the second air cylinder are arranged on the first frame body, and the second connecting piece is connected with the first frame body and the die holder.

In an alternative, the first frame body includes a plurality of support frames, the support frames having a first mounting position and a second mounting position, the second mounting position being located above the first mounting position in the second direction;

The first cylinder is arranged at the first installation position, and the second cylinder is arranged at the second installation position.

In an alternative, the first mounting location includes at least one first kidney-shaped aperture for mounting the first cylinder; the second mounting location includes a boss and at least one second kidney-shaped aperture located in the boss for mounting the second cylinder.

In an alternative scheme, the second connecting piece includes direction vertebra and locating plate, the direction vertebra with the locating plate set up in the first side of die holder, first support body with the direction vertebra is connected, first support body with the locating plate butt.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

Fig. 1 is a schematic perspective view of a stamping apparatus according to an embodiment of the present application;

FIG. 2 is a schematic plan view of the stamping apparatus of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2 at A;

FIG. 4 is a schematic structural diagram of a die holder according to an embodiment of the present application;

FIG. 5 is a schematic view of a core holder according to an embodiment of the present application;

FIG. 6 is a schematic plan view of the core holder of FIG. 5;

FIG. 7 is a schematic structural view of a first connector according to an embodiment of the present application;

FIG. 8 is a schematic view of the mounting structure of the first connector of FIG. 7 in one embodiment;

FIG. 9 is a schematic view of a push plate according to an embodiment of the present application;

Fig. 10 is a schematic structural diagram of a support frame according to an embodiment of the present application.

Reference numerals: the punching machine comprises a punching machine 1, a die holder 11, a first pushing mechanism 2, a first cylinder 21, a first connecting piece 22, a second hole 221, a first mounting seat 23, a mounting groove 231, a first core rod 3, a limiting part 31, a second pushing mechanism 4, a second cylinder 41, a push plate 5, a core rod seat 6, a first hole 61, a notch 62, a second core rod 7, a first frame 8, a support frame 81, a first waist-shaped hole 811, a convex part 812, a second waist-shaped hole 813, a second connecting piece 9, a guide cone 91, a positioning plate 92 and a pipe fitting 10.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Detailed Description

For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

As shown in fig. 1 to 10, the embodiment of the present application provides a punching device, and the technical scheme and the technical effect thereof are described herein by taking the application of the punching device to the punching process of the collecting pipe as an example, but the application of the punching device is not limited to the description herein, and the punching device can also be used for completing the punching of other tubular elements, which are not listed herein.

The header pipe is used as an important component in the heat exchanger, and can play roles of converging and distributing, and the header pipe is connected with the heat exchange pipe to distribute refrigerant into the heat exchange pipe for heat exchange, so that the side wall of the header pipe is required to be provided with a through hole for the heat exchange pipe to be inserted. In general, through holes in the collecting pipe are punched through punching equipment, a core bar is required to be inserted into the collecting pipe in the punching process, a plurality of grooves are formed in the side wall of the core bar, the part, corresponding to the grooves, of the collecting pipe is punched into the through holes through the punching equipment, and other parts, inserted into the collecting pipe, of the core bar can play a supporting role on the collecting pipe, so that the collecting pipe is prevented from being pressed and deformed.

The semiautomatic stamping equipment in the related art mostly adopts a form of combining an upper blanking mechanism and a lower blanking mechanism with a core bar push-pull mechanism, a collecting pipe is placed on the upper blanking mechanism on one side manually, the upper blanking mechanism moves forward, the collecting pipe is pushed to a designated position, then the core bar push-pull mechanism on the other side inserts the core bar, and a punch press of the stamping equipment moves downwards to finish stamping. After stamping is finished, the core bar push-pull mechanism withdraws the core bar, the demoulding cylinder jacks up the collecting pipe, and the feeding and discharging mechanism at the other side withdraws the collecting pipe and then is manually taken down. In order to facilitate loading and unloading, the two groups of mechanisms are respectively positioned on one side of the die, so that the occupied area of the equipment is large.

In this regard, the embodiment of the application provides a stamping device which can reduce the occupied area, thereby improving the space utilization rate of a device factory building. The punching machine specifically comprises a punching machine 1, a first pushing mechanism 2, a first core rod 3, a second pushing mechanism 4 and a push plate 5, wherein the punching machine 1 comprises a die holder 11 and a punching machine body, the die holder 11 is mainly used for mounting a die and providing a working platform for punching a pipe fitting 10 (namely a collecting pipe mentioned above), and the punching machine body can punch the pipe fitting 10 placed on the die holder 11 in a descending manner. The die holder 11 has a first side in a first direction, as shown in fig. 1, which is a length direction of the die holder 11 when the die holder 11 is substantially rectangular, and is also a length direction of the pipe 10 after the pipe 10 is placed at a predetermined position of the die holder 11.

As shown in fig. 1, the first pushing mechanism 2 is located on a first side of the die holder 11; the first core rod 3 is installed in the first pushing mechanism 2, the length direction of the first core rod 3 extends along the first direction, the first core rod 3 can reciprocate along the first direction under the driving of the first pushing mechanism 2, and the first core rod 3 can be at least partially inserted into the pipe fitting 10 after the pipe fitting 10 is placed at the preset position of the die holder 11, so that the pipe fitting 10 is supported. In addition, the second pushing mechanism 4 is also located at the first side of the die holder 11, the push plate 5 is installed on the second pushing mechanism 4, the push plate 5 can reciprocate along the first direction under the driving of the second pushing mechanism 4, after the pipe 10 is pressed down by the punch body to complete punching, a demolding cylinder (not shown in the figure) located in the die holder 11 supports the pipe 10, then the push plate 5 pushes the pipe 10 out of the die holder 11, and the first pushing mechanism 2 and the second pushing mechanism 4 are located at the same side of the die holder 11, so that the occupied area of the whole punching equipment is reduced.

It should be noted that when the length of the pipe 10 is long, for example, when the pipe 10 with the length of more than 800mm is punched, the tail of the pipe 10 far away from the core rod and inserted into one end is sagged due to the influence of gravity, and the pipe 10 contacts with the upper portion of the core rod in the process of drawing out the pipe 10 after the punching is completed by the punching device in the related art, so that the inner wall of the pipe 10 is scratched, and the processing quality of the pipe 10 is affected. In the embodiment of the application, the stamping equipment discharges the pipe fitting 10 by pushing the pipe fitting 10 out of the second pushing mechanism 4, and because one side inserted with the core rod can sufficiently support the pipe fitting 10, the scraping and rubbing caused by the core rod on the inner wall of the pipe fitting 10 can be effectively reduced in the process of pushing and discharging the pipe fitting 10 on the same side as the side inserted with the core rod, thereby ensuring the processing quality of the pipe fitting 10. Therefore, the stamping equipment in the embodiment of the application can reduce the occupied area and simultaneously reduce the scratch of the core rod on the inner wall of the pipe 10 when the length of the pipe 10 is longer.

As shown in fig. 1-4, in a specific embodiment, the stamping apparatus further includes a core rod seat 6 and a second core rod 7, where the core rod seat 6 is directly or indirectly connected to a die holder 11, and generally, the die holder 11 is mounted with a die, the core rod seat 6 is mounted at one end of the die along the length direction, and during stamping, the die is pressed to move downwards for a certain distance, and the core rod seat 6 also floats up and down along with the movement of the die. The length direction of the second core rod 7 extends along the first direction, one end of the second core rod 7 is fixedly connected with the core rod seat 6, and the other end is suspended in the die holder 11; the first core rod 3 is reciprocally movable in a first direction with respect to the second core rod 7, and the first core rod 3 is capable of being moved at least partially to a radial side of the second core rod 7.

Specifically, the core holder 6 includes a first hole 61, the first hole 61 penetrating the core holder 6 in a first direction, and the first core 3 is disposed to pass through the first hole 61 and reciprocate in the first direction; the first core rod 3 has a first position in which an end of the first core rod 3 remote from the first pushing mechanism 2 is located in the first hole 61, and a second position in which the first core rod 3 is located below at least part of the second core rod 7.

In this embodiment, the second core rod 7 is fixedly mounted on the core rod seat 6, and is relatively fixed in the first direction, and only moves along with the movement of the core rod seat 6, generally, most of the cross-sectional shape of the second core rod 7 is semicircular, and a plurality of grooves are formed on the sidewall of the second core rod 7 along the length direction at intervals, and the shape and density of the grooves can be adjusted according to the actual processing requirement, so that detailed description is omitted herein.

When the pipe fitting 10 is punched, firstly, the pipe fitting 10 penetrates from one suspended end of the second core rod 7, and stops after reaching a preset position, the first core rod 3 moves from the first position to the second position, the first core rod 3 and the second core rod 7 are combined together to support the pipe fitting 10, and then the pipe fitting 10 is punched; after the stamping is completed, the first core rod 3 is retracted from the second position to the second position, the pipe 10 is lifted by the stripper cylinder in the die holder 11, and then the push plate 5 is moved to push out the pipe 10. The second core rod 7 which is fixedly arranged on the die holder 11 can be used for positioning and mounting the pipe 10 in advance, and meanwhile, the second core rod 7 can also play a certain guiding role on the first core rod 3, so that the first core rod 3 can be accurately inserted.

As shown in fig. 1-4, in a specific embodiment, the push plate 5 has a third position and a fourth position when moving, in the third position, one side of the push plate 5 is abutted against the core rod seat 6, and in the fourth position, the push plate 5 is far away from the second pushing mechanism 4 and has a preset distance from the core rod seat 6; defining the length of the die holder 11 in the first direction as L ₁, and the preset distance as L ₂, then L ₁ and L ₂ satisfy: 2/3 is less than or equal to L ₂/L₁ is less than or equal to 1.

As mentioned above, the push plate 5 functions to push the pipe 10 from the first side away from the die holder 11 after the pipe 10 is punched, so as to facilitate the removal of the pipe 10. When the first core rod 3 is inserted into the pipe 10, it means that the pipe 10 is not yet punched, and therefore the push plate 5 is located at a third position abutting against the core rod seat 6, where the push plate 5 does not affect the punching process of the pipe 10, and after the punching is completed, the push plate 5 is fed from the third position to a fourth position to push the pipe 10 partially away from the second core rod 7 and the die holder 11. It should be noted that, too short or too long feeding distance of the push plate 5 may affect the extraction efficiency of the pipe 10, when the distance is too short, most of the pipe 10 is in contact with the second core rod 7 and the die holder 11, and the extraction is inconvenient, so that the preset feeding distance L ₂ of the push plate 5 and the length L ₁ of the die holder 11 in the first direction are suitable when 2/3.ltoreq.l ₂/L₁.ltoreq.1 are satisfied.

As shown in fig. 1 and 8, in a specific embodiment, the first pushing mechanism 2 includes a first cylinder 21 and a first connecting member 22, the first connecting member 22 is directly or indirectly mounted on the first cylinder 21, one end of the first core rod 3 along the length direction is movably connected with the first connecting member 22, the first core rod 3 can move a preset distance along a second direction relative to the first connecting member 22, the second direction is perpendicular to the first direction, and after the stamping device is mounted, the second direction is the gravity direction.

In the stamping process of the pipe fitting 10, since the core rod seat 6 moves up and down along with the movement of the die, the pipe fitting 10 and the first core rod 3 and the second core rod 7 inserted into the pipe fitting 10 also move, if the first core rod 3 is completely fixed on the first connecting piece 22, the first core rod 3 deforms in the moving process to deform the pipe fitting 10, and meanwhile, the joint of the first core rod 3 and the core rod seat 6 may break, which affects the quality of the pipe fitting 10 and the service life of the first core rod 3. Therefore, the first core bar 3 is configured to be movable a predetermined distance in the second direction with respect to the first connecting piece 22, so that the connection point of the first core bar 3 is moved downward by a certain distance during punching, and deformation of the connection point due to compression is reduced. In addition, the first core rod 3 may have a certain error when the pipe 10 is inserted, the first core rod 3 movably connected to the first connecting member 22 may have a certain movement area when the first core rod 3 is inserted, and when the resistance is generated between one end inserted into the pipe 10 and the inner wall of the pipe 10, the one end movably connected to the connecting member is forced to displace, so that the first core rod 3 may be more conveniently inserted into the pipe 10.

In a specific embodiment, as shown in fig. 7-8, the first connecting member 22 includes a second hole 221, where the second hole 221 may be a U-shaped hole, the second hole 221 penetrates the first connecting member 22 along the first direction, one end of the first core rod 3 along the length direction is provided with a limiting portion 31, and the limiting portion 31 is movably connected with the second hole 221. As shown in fig. 8, in the present embodiment, the limiting part 31 includes a mounting nut and a limiting block, the limiting block is located on the outer wall of the first core rod 3, the outer diameter of the limiting block is slightly larger than the outer diameter of the first core rod 3, and after the first core rod 3 between the limiting block and the mounting nut is mounted to the second hole 221, the distance between the first core rod 3 and the limiting block is adjusted by rotating the mounting nut, so that the first core rod 3 is movably mounted to the first connecting member 22. In some other embodiments, the limiting portion 31 may be other limiting structures, such as a double nut structure or a slot, which are not described herein.

As shown in fig. 8, in a specific embodiment, the first pushing mechanism 2 further includes a first mounting seat 23, where the first mounting seat 23 is fixedly mounted on the first cylinder 21, the first mounting seat 23 includes at least two mounting grooves 231, the at least two mounting grooves 231 are arranged at intervals along the first direction, and the first connecting member 22 is disposed in one of the mounting grooves 231 and is fixedly connected with the first mounting seat 23. When the lengths of the pipe fitting 10 are different, the required depths of the first core rod 3 inserted into the pipe fitting 10 are different, besides the first core rod 3 with different length types is replaced, the installation position of the first core rod 3 can be adjusted, and the first connecting piece 22 is installed in the installation groove 231 at different positions, so that different insertion depths of the first core rod 3 are realized. For example, when the insertion depth of the first core rod 3 is required to be shorter, the first mounting seat 23 can be mounted in the mounting groove 231 on the side far away from the die holder 11, so that the depth of the first core rod 3 capable of being inserted into the pipe 10 is reduced, and the processing requirements of pipe 10 of different types can be better met.

In one embodiment, as shown in fig. 1 and 5-6, the second pushing mechanism 4 includes a second cylinder 41, and the push plate 5 is mounted on the end of the piston rod of the second cylinder 41; the core rod seat 6 is provided with the breach 62 towards one side of push pedal 5, and the degree of depth of breach 62 in first direction is not less than push pedal 5 thickness, and breach 62 that sets up on the core rod seat 6 can make push pedal 5 better holding and hold push pedal 5 when the third position. The pushing plate 5 has a circular arc groove, and when the pushing plate 5 pushes the pipe 10, the side wall of the circular arc groove contacts with the pipe wall of the pipe 10 to push the pipe 10 to move, generally, the circular arc groove is 1-3mm larger than the inner diameter of the pipe 1015, and the length is approximately 1/3 arc length.

In the embodiment of the present application, the first cylinder 21 and the second cylinder 41 are trackless cylinders, and the cylinder specifications are selected according to the mold length, so that no particular limitation is made herein, but since the thrust force required for the first cylinder 21 to insert the first core rod 3 is greater than the thrust force required for the second cylinder 41 to push the pipe 10, the cylinder diameter of the first cylinder 21 is greater than the cylinder diameter of the second cylinder 41. In addition, the stamping device further comprises a first frame body 8 and a second connecting piece 9, the first air cylinder 21 and the second air cylinder 41 are mounted on the first frame body 8, and the second connecting piece 9 is connected with the first frame body 8 and the die holder 11.

As shown in fig. 1 and 4, the second connecting piece 9 includes a guiding vertebra 91 and a positioning plate 92, the guiding vertebra 91 and the positioning plate 92 are mounted on a first side of the die holder 11, the first frame 8 is connected with the guiding vertebra 91, the first frame 8 is abutted with the positioning plate 92, and the die holder 11 and the first frame 8 can be rapidly mounted through the guiding vertebra 91 and the positioning plate 92.

As shown in fig. 1 and 10, in one embodiment, the first frame 8 includes a plurality of support frames 81, and the support frames 81 have a first mounting position and a second mounting position, and in the second direction, the second mounting position is located above the first mounting position; the first cylinder 21 is mounted at a first mounting position, and the second cylinder 41 is mounted at a second mounting position. The distance between the inner wall of the pipe fitting 10 of different types and the push plate 5 is different, and the required insertion height of the first core rod 3 is also different, so that the installation positions of the first air cylinder 21 and the second air cylinder 41 can be adjusted when the pipe fitting 10 of different types is processed, thereby adapting to different processing requirements.

Specifically, the first mounting location includes at least one first kidney-shaped hole 811, the first kidney-shaped hole 811 for mounting the first cylinder 21; the second mounting location includes a boss 812 and at least one second kidney hole 813, the second kidney hole 813 being located at the boss 812, the boss 812 and the second kidney hole 813 being for mounting the second cylinder 41. As shown in fig. 9, in order to facilitate the installation of the air cylinder, a plurality of first waist-shaped holes 811 and second waist-shaped holes 813 are formed at the upper and lower portions of the supporting frame 81 for adjusting the installation position of the air cylinder, and the convex portion 812 formed on the side surface of the supporting frame 81 can support the second air cylinder 41, so that the whole installation structure is more stable and reliable, and the height of the convex portion 812 can be determined by the difference of the cylinder diameters of the two air cylinders, which is not described in detail herein. When in installation, the bottom of the first air cylinder 21 is directly installed on the first frame body 8, and the side surface is fixed with the support frame 81 through a screw; the bottom of the second cylinder 41 is placed on the convex portion 812 of the first frame body 8, the side faces are fixed with the supporting frame 81 through screws, the first cylinder 21 and the second cylinder 41 are arranged up and down, and the occupied area is reduced to a certain extent.

The specific flow of the stamping equipment in the embodiment of the application during installation and working is as follows: first, the first frame 8 is connected to the die holder 11, and the die holder 11 and the first frame 8 are connected and locked by the guide rib 91 and the positioning plate 92. The pipe fitting 10 is penetrated into the second core rod 7, the pipe fitting is positioned through a positioning point, the installation is ensured to be in place, then the first cylinder 21 is controlled to move towards one side of the die holder 11, the first core rod 3 is driven to be inserted into the pipe fitting 10, and after the first core rod 3 is inserted into place, the punch body descends to punch the pipe fitting 10.

After the inductor receives the stamping completion signal, the first cylinder 21 drives the first core rod 3 to move in the opposite direction, the first core rod 3 is pulled out of the pipe fitting 10, and the demolding cylinder supports the pipe fitting 10, so that a certain gap is reserved between the pipe fitting 10 and the upper part of the second core rod 7. Then the second cylinder 41 drives the push plate 5 to move to push the pipe fitting 10 out a certain distance, falls into a collecting and transferring device such as a turnover vehicle and the like, and immediately returns to the core rod seat 6 to finish one-round stamping.

When the product is changed, the screw rod of the supporting frame 81 of the first air cylinder 21 and/or the second air cylinder 41 is unscrewed, the first air cylinder 21 and/or the second air cylinder 41 is moved upwards or downwards for a required distance and aligned with a preset installation position, and then the screw rod is locked. In addition, when facing the pipe fittings 10 with different pipe diameters, the bolts connected with the push plates 5 are detached, the push plates 5 of corresponding products are replaced, and the bolts are screwed.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stamping apparatus, comprising:

a punch (1), the punch (1) comprising a die holder (11), the die holder (11) having a first side in a first direction;

The first pushing mechanism (2) is positioned on the first side of the die holder (11);

The first core bar (3) is arranged on the first pushing mechanism (2), the length direction of the first core bar (3) extends along the first direction, and the first core bar (3) can reciprocate along the first direction under the driving of the first pushing mechanism (2);

a second pushing mechanism (4), wherein the second pushing mechanism (4) is positioned on the first side of the die holder (11);

The pushing plate (5) is arranged on the second pushing mechanism (4), and the pushing plate (5) can reciprocate along the first direction under the driving of the second pushing mechanism (4).

2. The stamping device according to claim 1, further comprising a core rod seat (6) and a second core rod (7), wherein the core rod seat (6) is directly or indirectly connected with the die holder (11), the length direction of the second core rod (7) extends along the first direction, one end of the second core rod (7) is fixedly connected with the core rod seat (6), and the other end is suspended in the die holder (11);

The first core rod (3) is reciprocally movable in the first direction relative to the second core rod (7), and the first core rod (3) is movable at least partially to a radial side of the second core rod (7).

3. The stamping apparatus of claim 2, wherein the core bar holder (6) comprises a first hole (61), the first hole (61) extending through the core bar holder (6) in the first direction, the first core bar (3) being arranged to pass through the first hole (61) and to reciprocate in the first direction;

The first core rod (3) has a first position and a second position when moving, one end of the first core rod (3) away from the first pushing mechanism (2) is located in the first hole (61) when in the first position, and the first core rod (3) is located below at least part of the second core rod (7) when in the second position.

4. Stamping apparatus according to claim 2, characterized in that the push plate (5) has a third position in which one side of the push plate (5) abuts the core rod seat (6) and a fourth position in which the push plate (5) is remote from the second pushing mechanism (4) and has a preset distance from the core rod seat (6) when in motion;

Defining the length of the die holder (11) in the first direction as L ₁, and defining the preset distance as L ₂, wherein L ₁ and L ₂ satisfy the following conditions: 2/3 is less than or equal to L ₂/L₁ is less than or equal to 1.

5. Stamping apparatus according to any one of claims 2-4, characterized in that the first pushing mechanism (2) comprises a first cylinder (21) and a first connecting piece (22), the first connecting piece (22) being directly or indirectly connected to the first cylinder (21), one end of the first core rod (3) in the length direction being movably connected to the first connecting piece (22), the first core rod (3) being movable a preset distance in a second direction with respect to the first connecting piece (22), the second direction being perpendicular to the first direction.

6. The stamping apparatus according to claim 5, wherein the first connecting member (22) includes a second hole (221), the second hole (221) penetrates the first connecting member (22) along the first direction, one end of the first core rod (3) along the length direction is provided with a limiting portion (31), and the limiting portion (31) is movably connected with the second hole (221).

7. The stamping apparatus of claim 5, wherein the first pushing mechanism (2) further comprises a first mounting seat (23), the first mounting seat (23) is fixedly connected to the first cylinder (21), the first mounting seat (23) comprises at least two mounting grooves (231), at least two mounting grooves (231) are arranged at intervals along the first direction, and the first connecting piece (22) is disposed in one of the mounting grooves (231) and is fixedly connected to the first mounting seat (23).

8. Stamping apparatus according to claim 5, characterized in that the second pushing mechanism (4) comprises a second cylinder (41), the push plate (5) being arranged at the piston rod end of the second cylinder (41);

A notch (62) is formed in one side, facing the push plate (5), of the core rod seat (6), and the depth of the notch (62) in the first direction is not smaller than the thickness of the push plate (5).

9. Stamping apparatus according to claim 8, further comprising a first frame (8) and a second connecting piece (9), the first cylinder (21) and the second cylinder (41) being arranged in the first frame (8), the second connecting piece (9) connecting the first frame (8) and the die holder (11).

10. Stamping apparatus according to claim 9, characterized in that the first frame body (8) comprises a plurality of support frames (81), the support frames (81) having a first mounting position and a second mounting position, the second mounting position being located above the first mounting position in the second direction;

The first cylinder (21) is disposed at the first mounting position, and the second cylinder (41) is disposed at the second mounting position.

11. The stamping apparatus of claim 10, wherein the first mounting location comprises at least one first kidney-shaped hole (811), the first kidney-shaped hole (811) being for mounting the first cylinder (21); the second mounting location comprises a boss (812) and at least one second kidney hole (813), the second kidney hole (813) being located at the boss (812), the boss (812) and the second kidney hole (813) being for mounting the second cylinder (41).

12. Stamping apparatus according to any one of claims 9-11, characterized in that the second connecting piece (9) comprises a guiding cone (91) and a positioning plate (92), the guiding cone (91) and the positioning plate (92) being arranged on a first side of the die holder (11), the first frame body (8) being connected with the guiding cone (91), the first frame body (8) being in abutment with the positioning plate (92).