CN220241700U - Punching assembly, punching device and workpiece forming post-production line - Google Patents

Abstract

The utility model relates to a punching assembly, a punching device and a workpiece forming production line, which comprises a rotating shaft, a cutter, a loading piece and a central drill rod, wherein the rotating shaft receives input torque; the cutter is provided with a cutting part for cutting the workpiece, and a preset interval exists between the cutting part and the rotation axis of the rotating shaft; and also relates to a punching device and a production line after workpiece forming. The punching assembly not only can improve the stability of the workpiece during punching, but also can improve the punching precision and the yield, and can also realize the standardized collection of waste materials more easily; the punching device can process a group of through holes which are annularly arranged through single construction, so that the punching efficiency is improved; the work piece shaping back production line can carry out material loading, cut the tail, deburring and pile up neatly process, and along with the spacing operation of revolving stage, can realize the switching between the adjacent process to make production go on continually.

Description

Punching assembly, punching device and workpiece forming post-production line

Technical Field

The utility model relates to the technical field of post-molding processing of injection molding parts, in particular to a punching assembly, a punching device and a post-molding workpiece production line.

Background

At present, in the process of industrial production (such as a plastic flowerpot) of injection molding, a drainage vent hole is required to be arranged at the bottom of the flowerpot, and a special punch is adopted to punch holes, namely, the flowerpot is reversely buckled on a punching base, and a plurality of punches are simultaneously pressed down to finish punching.

By adopting the hole forming mode, the flowerpot is softer in texture, particularly after the die is worn, burrs and hole edges are easy to bend in the hole forming process, and in addition, the hole forming equipment is larger, so that the hole forming equipment is not integrated with an injection molding machine to form a production line, workpieces are required to be carried to a hole forming station for manual operation, and the production efficiency is lower.

Disclosure of Invention

First, the technical problem to be solved

In view of the above-mentioned shortcomings and disadvantages of the prior art, the present utility model provides a punching device, a punching device and a production line after workpiece forming, wherein the punching station is small in size, and is integrated with other stations on the annular production line, so that the problems existing in the existing production technology are solved.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

in a first aspect, the present utility model provides a punching assembly, including a rotating shaft, a cutter, a loading member and a center drill rod, the rotating shaft receiving an input torque, the cutter being in driving connection with the rotating shaft, the loading member being directly or indirectly disposed on the rotating shaft and being capable of applying a spring loading torque to a workpiece; the cutter is provided with a cutting part for cutting the workpiece, and the cutting part is spaced from the rotation axis of the rotating shaft by a preset distance.

In this technical scheme, the subassembly that punches includes pivot, cutter, loading piece and center drilling rod, and wherein, the pivot is used for driving cutter and center drilling rod rotation, and the loading piece can compress tightly the work piece of waiting to process and carry out corresponding punching process on the processing mesa that corresponds.

Because the preset distance exists between the cutting part and the rotation axis of the rotating shaft, the cutter is adopted to form holes in a hole-scribing mode, and the holes are not punched or drilled conventionally, so that even if the cutter and the surface to be processed of the workpiece have smaller contact area, the device can scribe through holes with required hole diameters, continuous production is realized by matching with the action of the loading part, and the stability of hole forming can be ensured.

Specifically, the preset distance between the cutting part and the rotation axis of the rotating shaft is the radius length of the through hole to be processed.

Also because the cutter is adopted to form holes in a hole-scribing mode, the workpiece is not easy to produce wire drawing and burrs during machining and can not receive larger axial load, so that cracking is not easy to occur, the hole-forming operation yield is improved, and the production cost is reduced.

Because the loading piece can apply loading moment to the workpiece, the workpiece can obtain better stability when punching operation is performed, and the punching precision is improved;

when punching is carried out, the central drill rod can form a central hole, and in the whole process of punching operation carried out by the cutter, the central drill rod can always keep a state of being matched with the central hole and then matched with a workpiece, and the stability of the workpiece when the punching operation is carried out can be further improved by matching with the action of the loading part;

because the workpiece has a certain thickness, after the central drill rod is matched with the central hole, the central drill rod can limit the angle of the workpiece to be cut off, so that the angle of the workpiece to be cut off is kept as horizontal as possible in the whole cutting process, and therefore, the workpiece to be cut off is ensured not to change the gesture even in the tail end flow of the cutting process, namely, the workpiece to be cut off is about to be separated from the workpiece body, and the quality of hole forming and the precision of hole forming are improved;

the cut workpiece is matched with the central drill rod through the central hole in the whole cutting process, so that the cut workpiece is easy to realize standardized and convenient collection after being disconnected with the workpiece body.

Compared with the prior art, the punching assembly has the advantages that the stability of a workpiece during punching can be improved, the punching precision can be improved, the yield is improved, and the standardized collection of waste materials is easier to realize.

In one technical scheme of the utility model, the punching direction of the punching assembly is set to be a first direction, and the extension length of the cutter along the first direction is smaller than the extension length of the loading piece and the center drill rod along the first direction, and the extension length of the loading piece along the first direction is greater than or equal to the extension length of the center drill rod along the first direction.

In the technical scheme, because the length of the central drilling rod along the first direction is longer than the length of the cutter along the first direction, and the length of the loading piece along the first direction is longer than or equal to the length of the central drilling rod along the first direction, when an actual punching process is carried out, the loading piece is firstly abutted against a workpiece, the workpiece is further pressed, the central drilling rod firstly contacts the workpiece to carry out punching work along with the feeding of the punching assembly, and because the central drilling rod is coaxial with the rotating shaft, a central hole is formed in the workpiece by the central drilling rod;

with the continuous feeding of the punching assembly, the cutter contacts the workpiece after the central hole is formed, and the outline to be cut is drawn around the axis of the central hole, and with the continuous feeding of the punching assembly, the cutter can finish the drilling on the workpiece.

When the punching operation is carried out, after the cutter completes cutting, the cut circular slice is separated from the center drill rod under the pushing of the loading piece, so that workpieces cannot be accumulated on the center drill rod to influence the subsequent punching operation, and the punching precision is improved;

when punching, the center drill rod is longer than the cutter, the center drill rod can be formed to be drilled into the workpiece to form a center positioning hole, and because the center drill rod is longer than the cutter, before the cutter does not complete cutting, the hole piece to be cut cannot be downwards fallen to one side due to the thrust of the loading piece, so that the hole piece is adhered to the hole edge, and the cutter can be ensured to completely cut the hole piece.

In one embodiment of the utility model, the projection of the contact contour of the loading element with the workpiece in the first direction is located inside the projection of the contact contour of the cutting element with the workpiece in the first direction.

In the technical scheme, the contour of the contact part of the loading piece and the workpiece is positioned in the contour of the contact part of the cutting part and the workpiece, so that the position loaded by the loading piece is the position to be cut off on the workpiece, the loading piece can keep loading the workpiece, after the cutting work is finished, the cut waste can fall at a preset position after the extrusion of the loading piece, namely, the active separation of the cut waste and the workpiece can be realized while the punching stability is ensured.

In one technical scheme of the utility model, the punching assembly further comprises a first connecting block and a second connecting block, wherein the first connecting block is fixedly connected with the rotating shaft, the second connecting block is in sliding connection with the rotating shaft, the sliding direction is set along the axial direction of the rotating shaft, the cutter and the center drill rod are both arranged on the first connecting block, and the loading part is arranged on the second connecting block; the punching assembly further comprises an elastic piece and a third connecting block, the third connecting block is fixedly connected with the rotating shaft, the elastic piece is sleeved between the third connecting block and the second connecting block, and two ends of the elastic piece are respectively abutted to the third connecting block and the second connecting block.

In the technical scheme, a rotating shaft is provided with a first connecting block and a second connecting block, a cutter and a center drill rod are arranged on the first connecting block, and the first connecting block is fixedly connected with the rotating shaft, so that the first connecting block can run along with the rotating shaft, and further the cutter and the center drill rod are driven to run; the loading piece is arranged on the second connecting block, and the second connecting block is in sliding connection with the rotating shaft, so that the loading piece can be used for loading a workpiece when the punching assembly is fed, and the workpiece cannot be damaged.

In one embodiment of the utility model, the loading element is provided as a push rod, which has a loading section that extends horizontally.

In the technical scheme, the loading part is used for loading the workpiece, and the loading part horizontally extends to ensure that the loading part has enough contact area with the workpiece, so that the stability of the workpiece during processing is ensured.

In one embodiment of the utility model, the loading part is provided in the form of a ring, and the center drill rod can pass through the ring-shaped loading part.

In this technical scheme for annular loading portion can be passed to the center drilling rod, and then makes the partial work piece that needs to cut off can obtain circumferential loading, at first can improve the stability of work piece, and secondly, also can make the cutting waste material drop from the center drilling rod more easily.

The loading part may be provided as an end bent portion of the loading member, and the loading member may be provided as an annular wire.

In a second aspect, the utility model provides a punching device, which comprises the punching assembly in any one of the above technical schemes, and further comprises a driving unit, a manipulator and a connecting disc, wherein the punching device is annularly distributed on the connecting disc, the connecting disc is connected to the manipulator, and a rotating shaft of the driving unit is connected with one of the rotating shafts through a coupler.

In this technical scheme, contain annular distribution's connection pad in the perforating device, make it can pass through single processing, and then process out a set of through-hole that the ring was arranged, and then improve punching efficiency.

Meanwhile, the technical scheme comprises the punching device in any one of the technical schemes, so that the punching device in any one of the technical schemes has all the beneficial effects, and the details are not described in detail for avoiding repetition.

The manipulator is set as a punching mechanical arm, which can drive the punching device to execute vertical lifting and horizontal swinging actions, which is a means of the prior art and is not described in detail herein.

In one embodiment of the utility model, all the rotary shafts are operated in a linked manner, so that all the rotary shafts are driven by one driving element.

In the technical scheme, the rotating shafts are arranged to operate in a linkage mode, a belt pulley can be arranged on the rotating shafts, and torque transmission is achieved through the toothed belt.

In a third aspect, the utility model provides a production line after workpiece forming, comprising the punching device in any one of the above technical schemes, wherein the workpiece is an injection molding piece, and further comprises a rotary table, and a plurality of processing stations are annularly distributed on the rotary table; the processing devices are annularly arranged and correspond to the processing stations one by one; the processing device comprises a feeding device, a tail shearing device, a trimming device and a stacking device which are sequentially arranged; the processing device also comprises a shaping station device positioned between the trimming device and the stacking device.

In this technical scheme, the production line after workpiece forming includes all the beneficial effects of the punching device in any of the above technical schemes, and in order to avoid repetition, details are not described here.

Meanwhile, the production line can carry out the working procedures of feeding, tail cutting, trimming and stacking, and can realize the switching between the adjacent working procedures along with the limit operation of the rotary table, and the production is continuously carried out.

Because each device and each station adopt the annular structure, therefore, compared with the traditional strip-type production line, the production line in the technical scheme is more compact, and is beneficial to saving space.

The processing device further comprises a shaping device, and the shaping device is used for finishing the basin-shaped injection molding piece, so that the production line is suitable for working conditions with high product quality requirements.

In one technical scheme of the utility model, a feeding station is arranged at the joint of the positioning disc assembly and the injection molding machine, plastic workpiece positioning assemblies are arranged at the joint, so that a sucker mechanical arm can conveniently and accurately grasp workpieces sent by the injection molding machine, the positioning disc assembly comprises a disc body, a V-shaped positioning opening and an elastic swinging piece, wherein the V-shaped positioning opening and the elastic swinging piece are arranged on the disc body, and the elastic swinging piece is used for pressing the workpieces to the V-shaped positioning opening so as to position the workpieces.

In the technical scheme, the position of the workpiece is limited by the V-shaped positioning opening, and the elastic swinging piece can press the workpiece on the V-shaped positioning opening, so that the workpiece realizes the position limitation on the disc body.

(III) beneficial effects

The beneficial effects of the utility model are as follows: according to the punching assembly, the punching device and the workpiece forming production line, the cutting part and the rotation axis of the rotating shaft have a preset distance, so that the hole forming process adopts the cutter to form holes in a hole forming mode, and the traditional hole forming or hole forming is not performed, and therefore, even if a small contact area is formed between the cutter and the surface to be processed of the workpiece, the device can form through holes with required hole diameters, and the hole forming stability can be ensured by matching with the action of the loading part.

Also because the cutter is adopted to form holes in a hole-scribing mode, the workpiece is not easy to produce wire drawing and burrs during processing and can not receive larger axial load, so that the workpiece is not easy to crack, further the yield of hole-forming operation is improved, and the production cost is reduced.

Because the loading piece can apply loading moment to the workpiece, the workpiece can obtain better stability when punching operation is performed, and the punching precision is improved;

when punching is carried out, the central drill rod can form a central hole, and in the whole process of punching operation carried out by the cutter, the central drill rod can always keep a state of being matched with the central hole and then matched with a workpiece, and the stability of the workpiece when the punching operation is carried out can be further improved by matching with the action of the loading part;

because the workpiece has a certain thickness, after the central drill rod is matched with the central hole, the central drill rod can limit the angle of the workpiece to be cut off, so that the angle of the workpiece to be cut off is kept as horizontal as possible in the whole cutting process, and therefore, the workpiece to be cut off is ensured not to change the gesture even in the tail end flow of the cutting process, namely, the workpiece to be cut off is about to be separated from the workpiece body, and the quality of hole forming and the precision of hole forming are improved;

the cut workpiece is matched with the central drill rod through the central hole in the whole cutting process, so that the cut workpiece is easy to realize standardized and convenient collection after being disconnected with the workpiece body.

Compared with the prior art, the punching assembly has the advantages that the stability of a workpiece during punching can be improved, the punching precision can be improved, the yield is improved, and the standardized collection of waste materials is easier to realize.

Contain annular distribution's connection pad in the perforating device, make it can pass through single processing, and then process out a set of annular through-hole of arranging, and then improve punching efficiency.

The work piece shaping back production line can carry out material loading, cut the tail, deburring and pile up neatly process, and can realize the switching between the adjacent process along with the spacing operation of revolving platform to make production go on continually.

Due to the adoption of the annular production line structure, compared with the traditional strip-type production line, the production line in the technical scheme is more compact, and is beneficial to saving space.

The station moves once to finish the processing of one working procedure, and the whole working procedure of one workpiece can be finished along with the repeated operation of the rotary table.

Drawings

FIG. 1 is a schematic view of a perforating assembly of the present utility model;

FIG. 2 is a schematic structural view of the punching device of the present utility model;

FIG. 3 is a schematic diagram of a production line after forming a workpiece according to the present utility model.

[ reference numerals description ]

1: a rotating shaft;

2: a cutter; 21: a cutting section;

3: a loading member; 31: a loading unit;

4: a center drill rod;

5: a first connection block;

6: a second connection block;

7: an elastic member;

8: a third connecting block;

a: a punching device; a1: a punching assembly; a2: a driving unit; a3: a manipulator; a4: a connecting disc;

b: a rotary table;

c: a feeding device;

d: tail cutting device;

e: a trimming device;

f: and a stacking device.

Detailed Description

The present utility model will be described in detail below with reference to fig. 1 to 3 for better explanation of the present utility model, and for convenience of understanding. Wherein references herein to "upper", "lower", "etc. are made with reference to the orientation of fig. 1.

Example 1:

referring to fig. 1 and 2, an embodiment of the present utility model provides a punching assembly A1, including a rotating shaft 1, a cutter 2, a loading member 3 and a center drill rod 4, wherein the rotating shaft 1 receives an input torque, the cutter 2 is in driving connection with the rotating shaft 1, and the loading member 3 is directly or indirectly disposed on the rotating shaft 1 and can apply an elastic loading torque to a workpiece; the cutter 2 has a cutting portion 21 for cutting a workpiece, and the cutting portion 21 is spaced apart from the rotation axis of the rotary shaft 1 by a predetermined distance.

The punching direction of the punching assembly A1 is set to be a first direction, and the extension length of the cutter 2 along the first direction is smaller than the extension length of the loading piece 3 and the center drill rod 4 along the first direction, and the extension length of the loading piece 3 along the first direction is greater than or equal to the extension length of the center drill rod 4 along the first direction.

In this embodiment, the punching assembly A1 includes a rotating shaft 1, a cutter 2, a loading member 3 and a center drill rod 4, where the rotating shaft 1 is used to drive the cutter 2 and the center drill rod 4 to rotate, and the loading member 3 can compress a workpiece to be processed onto a corresponding processing table surface to perform a corresponding punching procedure.

Because the length of the center drill rod 4 along the first direction is longer than the length of the cutter 2 along the first direction, and the length of the loading piece 3 along the first direction is longer than or equal to the length of the center drill rod 4 along the first direction, when the actual punching process is performed, the loading piece 3 will firstly abut against the workpiece to compress the workpiece, and along with the feeding of the punching assembly A1, the center drill rod 4 will firstly contact the workpiece to perform the punching operation, and because the center drill rod 4 is coaxial with the rotating shaft 1, the center drill rod 4 will be provided with a center hole on the workpiece;

with the continuous feeding of the perforating assembly A1, the cutter 2 contacts the workpiece after the central hole is formed, and the outline to be cut is drawn around the axis of the central hole, and also with the continuous feeding of the perforating assembly A1, the cutter 2 can complete the drilling of the workpiece.

When the punching operation is carried out, after the cutter 2 finishes cutting, the cut circular slice is separated from the center drill rod 4 under the pushing of the loading piece 3, so that workpieces cannot be accumulated on the center drill rod 4 to influence the subsequent punching operation, and the punching precision is improved;

when punching, the center drill rod 4 is longer than the cutter 2, and the workpiece is formed into a center positioning hole by forming, because the center drill rod 4 is longer than the cutter 2, before the cutter 2 does not complete cutting, the hole piece to be cut cannot be adhered to the hole edge due to the fact that the hole piece is downwards reversed to one side due to the thrust of the loading piece 3, and the cutter 2 can be ensured to completely cut the hole piece.

Since the loading piece 3 can apply loading moment to the workpiece, the workpiece can obtain better stability when punching operation is performed, which is beneficial to improving punching precision;

when punching is carried out, the center drill rod 4 firstly forms a center hole, and in the whole process of the punching operation carried out by the cutter 2, the center drill rod 4 always keeps a state of being matched with the center hole and then matched with a workpiece, and the stability of the workpiece when the punching operation is carried out can be further improved by matching the action of the loading piece 3;

because the workpiece has a certain thickness, after the central drill rod 4 is matched with the central hole, the central drill rod 4 can limit the angle of the workpiece to be cut, so that the angle is kept as horizontal as possible in the whole cutting process, and therefore, the workpiece can be ensured not to change the gesture even in the tail end flow of the cutting process, namely, when the workpiece to be cut is about to be separated from the workpiece body, and further the quality of hole forming and the precision of hole forming are improved;

the cut workpiece is matched with the center drill rod 4 through the center hole in the whole cutting process, so that the cut workpiece is easy to realize standardized and convenient collection after being disconnected with the workpiece body.

In addition, in the utility model, the cutter 2 is adopted to form holes in a 'hole-scribing' mode, and the traditional hole-piercing or hole-drilling is not adopted, so that even if the cutter 2 and the surface to be machined of the workpiece have smaller contact area, the device can be used for scribing through holes with required hole diameters, and the hole-forming stability can be ensured by matching with the action of the loading piece 3.

Also because the cutter 2 is adopted to form holes in a hole-scribing mode, the workpiece is not easy to produce wire drawing and burrs during processing and can not receive larger axial load, so that the workpiece is not easy to crack, thereby being beneficial to improving the yield of hole-forming operation and reducing the production cost.

Compared with the prior art, the punching assembly A1 provided by the utility model can improve the stability of a workpiece during punching, can also improve the punching precision, improves the yield, and can also realize standardized collection of waste materials more easily.

The cutter 2 has a cutting portion 21, and the projection of the contact profile of the loader 3 with the workpiece in the first direction is located inside the projection of the contact profile of the cutting portion 21 with the workpiece in the first direction.

In the present embodiment, the contour of the workpiece contact portion of the loader 3 is located within the contour of the cutting portion 21 that contacts the workpiece, i.e., the position where the loader 3 is loaded is the position on the workpiece that needs to be cut off, so that the loader 3 can maintain the loading of the workpiece. After the cutting work is completed, the cut waste can fall at a preset position when the loading piece 3 is extruded, so that the perforation stability is ensured, and meanwhile, the active separation of the cut waste and the workpiece can be realized.

In this embodiment, the punching assembly A1 further includes a first connecting block 5 and a second connecting block 6, the first connecting block 5 is fixedly connected with the rotating shaft 1, the second connecting block 6 is slidably connected with the rotating shaft 1, the sliding direction is set along the axial direction of the rotating shaft 1, the cutter 2 and the center drill rod 4 are both disposed on the first connecting block 5, and the loading piece 3 is disposed on the second connecting block 6; the punching assembly A1 further comprises an elastic piece 7 and a third connecting block 8, wherein the third connecting block 8 is fixedly connected with the rotating shaft 1, and if the third connecting block is connected by a pin; the two ends of the elastic piece 7 are respectively abutted against the third connecting block 8 and the second connecting block 6.

In the embodiment, a rotating shaft 1 is provided with a first connecting block 5 and a second connecting block 6, a cutter 2 and a center drill rod 4 are arranged on the first connecting block 5, and the first connecting block 5 is fixedly connected with the rotating shaft 1, so that the first connecting block and the rotating shaft 1 can run together, and further the cutter 2 and the center drill rod 4 are driven to run; the loading piece 3 is arranged on the second connecting block 6, and the second connecting block 6 is in sliding connection with the rotating shaft 1, so that when the punching assembly A1 is fed, the loading piece 3 keeps loading on a workpiece, and meanwhile the workpiece cannot be damaged.

Specifically, the first connecting block 5 and the second connecting block 6 may be disposed in a stacked manner on the rotating shaft 1, and the second connecting block 6 is far away from the workpiece, the first connecting block 5 is close to the workpiece, and interference between the second connecting block 6 and the first connecting block 5 cannot occur during the process that the second connecting block 6 ascends relative to the rotating shaft 1.

More specifically, the first connecting block 5 and the second connecting block 6 perform dynamic balance processing, so that stability of the punching assembly A1 during operation is improved.

In the present embodiment, the second connection block 6 and the rotating shaft 1 may be provided in a rotatable connection; when the loader 3 is engaged with the workpiece, the loader 3 does not operate relative to the workpiece.

In this embodiment, the second connection block 6 not only can be slidably connected with the rotating shaft 1, but also can rotate relative to the rotating shaft 1, specifically, the second connection block 6 can be sleeved outside the rotating shaft 1, so that the loading piece 3 and the workpiece can be kept in a relatively static state after the workpiece is pressed.

For example, the loading member 3 may be provided to be connected to the side wall of the second connection block 6 in a bent form so as to avoid interference with the first connection block 5.

If the arrangement is as shown in fig. 1, the loading element 3 will interfere with the first connecting block 5, so that it will follow the first connecting block 5, and although the effect of improving the workpiece compacting effect is not achieved, the arrangement is simple in structure and relatively low in cost, and can be used as an implementation form.

This is only one of the ways of keeping the loading member 3 and the workpiece relatively stationary, and it is also possible to provide the loading member 3 with a sliding portion, and to rotate the upper portion of the loading member 3 with respect to the lower portion by means of a movable portion, so that the position where the loading member 3 presses the workpiece can be kept relatively stationary with respect to the workpiece.

In the present embodiment, the loading member 3 is provided as a push rod having a loading portion 31, and the loading portion 31 extends horizontally.

In this embodiment, the loading portion 31 is used to load a workpiece, and by extending the loading portion 31 horizontally, it can be ensured that the loading portion has a sufficient contact area with the workpiece, so as to ensure the stability of the workpiece during processing.

In the present embodiment, the loading portion 31 is provided in a ring shape, and the center drill rod 4 can pass through the ring-shaped loading portion 31.

In this embodiment, the central drill rod 4 can pass through the annular loading portion 31, so that a part of the workpiece to be cut can be circumferentially loaded, and firstly, the stability of the workpiece can be improved, and secondly, the cutting waste can be more easily dropped from the central drill rod.

The loading part 31 may be provided as an end bent portion of the loading piece 3, and the loading piece 3 may be provided as a wire shape.

Example 2:

referring to fig. 1 and 2, an embodiment of the present utility model provides a punching device a, including a punching assembly A1 in the above embodiment, where the punching device a further includes a driving unit A2, a manipulator A3, and a connection pad A4, the punching device a is annularly distributed on the connection pad A4, the connection pad A4 is connected to the manipulator A3, and the driving unit A2 is in driving connection with the rotating shaft 1.

In this embodiment, the punching device a includes a connection pad A4 distributed annularly, so that it can be processed through a single process, and then a group of through holes distributed annularly are processed, so as to improve the punching efficiency.

Meanwhile, the technical scheme includes the punching device a in any one of the above technical schemes, so the punching device a in the technical scheme includes all the beneficial effects in any one of the above technical schemes, and in order to avoid repetition, detailed description is omitted here.

The manipulator A3 is configured as a punching mechanical arm, and can drive the punching device a to execute vertical lifting and horizontal swinging actions, which are means of the prior art, and are not described in detail herein.

Example 3:

referring to fig. 2, the embodiment of the present utility model further includes the following technical means in addition to all the technical means of embodiment 2:

all the rotating shafts 1 are operated in a linkage manner so that all the rotating shafts 1 are driven by one driving piece.

In this embodiment, the upper end of the rotating shaft 1 is provided with a toothed belt pulley, the upper end of each punching assembly rotating shaft 1 is provided with a toothed belt pulley, each belt pulley is connected with a toothed belt to operate in a linkage way, the driving unit A2 is connected with one rotating shaft 1 close to the belt pulley through a coupling to drive the belt pulley to rotate, and simultaneously, all the rotating shafts 1 are driven to rotate through synchronous belts.

Example 4:

referring to fig. 3, an embodiment of the present utility model further provides a post-forming production line for a workpiece, including the punching device a in any one of the above embodiments, where the workpiece is configured as a basin-shaped injection molding piece, and further includes a turntable B, on which a plurality of processing stations are annularly distributed; the processing devices are annularly arranged and correspond to the processing stations one by one; the processing device comprises a feeding device C, a tail shearing device D, a trimming device E and a stacking device F which are sequentially arranged.

In this embodiment, the post-forming production line for workpieces includes all the advantages of the punching device a in any of the above embodiments, and the description thereof is omitted herein for avoiding repetition.

Meanwhile, the production line can realize the working procedures of automatic feeding, tail cutting, trimming and stacking, and can realize the sequential switching among the working procedures along with the limit operation of the rotary table B, so that the production is continuously carried out.

Because each device and each station adopt the annular structure, therefore, compared with the traditional strip-type production line, the production line in the technical scheme is more compact, and is beneficial to saving space.

Specifically, the rotary table B is divided into a plurality of sectors, each sector corresponds to a station, each station is provided with a disc body for bearing a workpiece to be processed, each sector is provided with corresponding processing equipment, and the processing equipment can be arranged on the inner side or the outer side of the rotary table B as required.

The rotary table B rotates for a certain angle, and the station moves once to finish the processing of one procedure; with the multiple operation of the rotary table B, all the working procedures of one workpiece can be completed.

Two fixing modes of the rotary table B are adopted, one is fixed on the annular guide rail, so that the rotary table B rotates around the virtual circle center of the rotary table B; the other mode is that a small disc is arranged, the small disc is fixed on a vertical shaft through a bearing, the vertical shaft is fixed on a horizontal rack, a rotary table B is connected with the small disc through spokes, concentricity of the rotary table B and the bearing is guaranteed, a driving motor drives the small disc through a gear, the small disc drives the rotary table B to rotate, and each station processing device is fixed on the outer side of the station disc and can also be fixed on a central bearing column through a bracket.

The plastic workpiece positioning assembly comprises a disc body, a V-shaped positioning opening and an elastic swinging piece, wherein the V-shaped positioning opening is arranged in the disc body, and the elastic swinging piece is used for pressing the workpiece to the V-shaped positioning opening so as to position the workpiece.

The position of the workpiece is limited by the V-shaped positioning opening, and the elastic swinging piece can press the workpiece on the V-shaped positioning opening, so that the workpiece can realize the position limitation on the disc body.

The production line after workpiece forming further comprises a basin receiving station, the basin receiving station is used for conveying the formed basin-shaped injection molding piece to the rotary table B, the basin receiving station is corresponding to the feeding device C, a basin receiving mechanical arm is arranged on the basin receiving station and provided with a negative pressure sucker, the basin receiving mechanical arm is used for placing the basin-shaped injection molding piece on a designated table top, an elastic swinging piece is pushed by a cylinder to push the basin-shaped injection molding piece into a V-shaped positioning opening, the basin-shaped injection molding piece is sucked up by the mechanical arm and is rotated to the position above a corresponding tray body on the annular rotary table B, the basin-shaped injection molding piece is placed on the tray body, the elastic swinging piece and the V-shaped positioning opening are used for pushing the basin-shaped injection molding piece into the V-shaped positioning opening, the basin-shaped injection molding piece is located right below the basin receiving mechanical arm, the basin bottom designated position of the basin-shaped injection molding piece is ensured to be sucked by the mechanical arm sucker, and the basin can be accurately placed on the designated tray body of the annular rotary table B in the next step.

The tail shearing device D is arranged as a tail shearing mechanical arm and comprises a lifting arm and a pair of scissors arranged on the arm, so that the shearing of the bottom injection molding tail of the basin can be realized.

At least the disk body that punching station and deburring station correspond sets up to the form that can initiatively rotate, if set up the disk body into the form that drives the operation through the friction pulley, set up positioning sensor on the perforating device A, wait to punch positioning sensor perception correct punching position friction pulley and stop, perforating device A falls down, accomplishes the punching, and each processing agency returns to the position.

The trimming machine finishes trimming operation of the basin-shaped injection molding piece in a planing mode, namely when the friction wheel drives the corresponding disc body and the corresponding disc body drives the corresponding basin-shaped injection molding piece to rotate, the cutter realizes removing burrs of the basin-shaped injection molding piece.

The stacker comprises a basin grabbing mechanical arm, a basin stacking machine, a pushing device and a buffer tray body, wherein the basin grabbing mechanical arm comprises a mechanical arm and a vacuum negative pressure grabbing mechanism, after the basin-shaped injection molding piece reaches the stacker, the basin grabbing mechanical arm rotates to the position above the basin-shaped injection molding piece, the basin-shaped injection molding piece is grabbed to be lifted and rotated to buckle the basin into the tray body of the basin stacking machine, and when the number or the height of the basin stacks reaches a preset value, the pushing device is started to push one basin stack into the buffer tray body.

Example 5:

referring to fig. 3, the embodiment of the present utility model further includes the following technical means in addition to all the technical means of embodiment 4:

the processing device further comprises a shaping device located between the trimming device E and the palletizing device F.

In this embodiment, the processing device further comprises a shaping device, and the shaping device is used for finishing the basin-shaped injection molding piece, so that the production line is suitable for the working condition with higher product quality requirement.

Specifically, the shaping device is a prior art means, and is not described in detail herein.

It will be appreciated that the above examples 1-5, except where conflicting moieties, may be freely combined to form further embodiments of the present utility model.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (9)

1. A perforation assembly, characterized in that: the cutter (2) is in driving connection with the rotating shaft (1) so as to rotate around the rotating shaft to cut a hole on a workpiece, and the loading piece (3) is directly or indirectly arranged on the rotating shaft (1) and can apply loading torque to the workpiece;

the cutter (2) has a cutting portion (21) for cutting a workpiece, the cutting portion (21) being spaced apart from the rotation axis of the rotary shaft (1) by a predetermined distance.

2. The punch assembly of claim 1, wherein: the punching direction of the punching assembly (A1) is set to be a first direction, the extension length of the cutter (2) along the first direction is smaller than the extension length of the loading piece (3) and the center drill rod (4) along the first direction, and the extension length of the loading piece (3) along the first direction is greater than or equal to the extension length of the center drill rod (4) along the first direction.

3. The punch assembly of claim 2, wherein: a projection of the contact contour of the loading piece (3) and the workpiece along the first direction is positioned inside the projection of the contact contour of the cutting part (21) and the workpiece along the first direction.

4. A punch assembly as claimed in claim 3, wherein: the punching assembly (A1) further comprises a first connecting block (5) and a second connecting block (6), the first connecting block (5) is fixedly connected with the rotating shaft (1), the second connecting block (6) is in sliding connection with the rotating shaft (1), the cutter (2) and the center drill rod (4) are both arranged on the first connecting block (5), and the loading piece (3) is arranged on the second connecting block (6);

the punching assembly (A1) further comprises an elastic piece (7) and a third connecting block (8), the third connecting block (8) is fixedly connected with the rotating shaft (1), and two ends of the elastic piece (7) are respectively abutted to the third connecting block (8) and the second connecting block (6).

5. The punch assembly of claim 4, wherein: the loading piece (3) is provided as a push rod, the push rod is provided with a loading part (31), and the loading part (31) extends along the direction of the processing surface of the workpiece;

the loading part (31) is arranged in a ring shape, and the center drill rod (4) can pass through the ring-shaped loading part (31).

6. A perforating device, characterized in that: the punching assembly (A1) according to any one of claims 1 to 5, wherein the punching device (A) further comprises a driving unit (A2), a manipulator (A3) and a connecting disc (A4), the punching device (A) is annularly distributed on the connecting disc (A4), the connecting disc (A4) is connected with the manipulator (A3), and the driving unit (A2) is in driving connection with the rotating shaft (1).

7. The perforating device as recited in claim 6 wherein: all the rotating shafts (1) are operated in a linkage way, so that all the rotating shafts (1) are driven by one driving piece.

8. The utility model provides a work piece shaping back production line which characterized in that: the punching device (A) comprises a punching device (A) as claimed in claim 6 or 7, wherein the workpiece is an injection molding piece, and the punching device further comprises a rotary table (B), and a plurality of processing stations are annularly distributed on the rotary table (B);

the processing devices are annularly arranged and correspond to the processing stations one by one;

the processing device comprises a feeding device (C), a tail shearing device (D), a trimming device (E) and a stacking device (F) which are sequentially arranged.

9. The post-forming work piece production line of claim 8, wherein: the processing device is provided with a positioning disc assembly, the positioning disc assembly comprises a disc body, a V-shaped positioning opening and an elastic swinging piece, wherein the V-shaped positioning opening is formed in the disc body, and the elastic swinging piece is used for pressing a workpiece to the V-shaped positioning opening so as to position the workpiece.