CN220196056U

CN220196056U - Dynamic balancing mechanism of punch press

Info

Publication number: CN220196056U
Application number: CN202321698922.5U
Authority: CN
Inventors: 李建锋; 吴晓婷; 徐超燚; 张斌; 赵紫鑫
Original assignee: Seftec Precision Machinery Manufacturing Co ltd
Current assignee: Seftec Precision Machinery Manufacturing Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-12-19
Anticipated expiration: 2033-06-30

Abstract

The utility model particularly discloses a dynamic balancing mechanism of a punch. The dynamic balancing mechanism at least comprises a frame, a driving module and a dynamic balancing module, wherein the driving module comprises a driving piece, a driving connecting rod, a transition sliding block, an output rod and a rocker; one end of the driving connecting rod is rotatably and movably connected with the driving piece, and the other end of the driving connecting rod is hinged with the transition sliding block; one end of the output rod is hinged with the rocker, and the other end of the output rod is hinged with the transition sliding block; the dynamic balance module comprises a balance force taking connecting rod, a supporting rod, a balance connecting rod and a balance sliding block; the balance force taking connecting rod is hinged with the output rod; one end of the balance connecting rod is hinged with the balance force taking connecting rod, and the other end of the balance connecting rod is hinged with the balance sliding block; one end of the supporting rod is hinged with the frame, and the other end of the supporting rod is hinged with the balance force taking connecting rod. The dynamic balancing mechanism has the advantages of small driving load and side load, the balance weight is arranged more flexibly, the center of gravity is effectively lowered, and the equipment operates more stably.

Description

Dynamic balancing mechanism of punch press

Technical Field

The utility model relates to a dynamic balancing mechanism of a punch.

Background

The punching machine is a mechanical device for blanking, punching, forming and other processing of plates, and is widely applied to punching and forming of products such as electronic, household appliances, furniture, hardware parts and the like. The working principle is that a specific die is adopted to apply pressure to the material so as to make the material plastically deform, thereby obtaining the required shape and precision.

The Chinese patent publication No. CN 103434166B of the prior application discloses a high-speed precision punching machine, which comprises a middle table body, a crankshaft, a first connecting rod, a second connecting rod, a first slider, a second slider, a left guide pillar, a right guide pillar and a sliding block, wherein the crankshaft is in rotary movable connection with the middle table body, the first slider and the second slider are respectively in left-right sliding connection with the middle table body, and the first slider and the second slider are opposite left and right relative to the crankshaft. The crankshaft is connected with the first slider through the first connecting rod and is connected with the second slider through the second connecting rod. The first slider is connected with the left guide post through the first lower connecting rod and the dynamic balance block. The second slider is connected with the right guide post through a second lower connecting rod and is connected with the dynamic balance block through a second upper connecting rod. The left guide post and the right guide post are connected with the middle table body in an up-down sliding way and are simultaneously connected with the sliding block.

The high-speed precision punching machine has the advantages of simplicity in operation, high working efficiency, capability of running at a higher rotating speed and the like. However, the high-speed precision punching machine has the defects, and specifically comprises: 1. the left guide post and the right guide post have larger side load, which affects the running stability; 2. the setting position of balancing piece is too high, and equipment overall gravity center is high, is unfavorable for equipment steady operation.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a dynamic balancing mechanism of a punch press, which has the advantages of small driving load and side load, more flexible setting of a balancing weight, effective lowering of the center of gravity and more stable operation of equipment.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a dynamic balancing mechanism of a punch press, at least comprising:

a frame;

the driving module comprises a driving piece, a driving connecting rod, a transition sliding block, an output rod and a rocker; the driving piece and the rocker are respectively and rotatably connected with the frame, and the transition sliding block is in sliding connection with the frame; one end of the driving connecting rod is rotatably and movably connected with the driving piece, and the other end of the driving connecting rod is hinged with the transition sliding block; one end of the output rod is hinged with the rocker, and the other end of the output rod is hinged with the transition sliding block;

the dynamic balance module comprises a balance force taking connecting rod, a supporting rod, a balance connecting rod and a balance sliding block; the balance slide block is in sliding connection with the frame, and the balance force taking connecting rod is hinged with the output rod; one end of the balance connecting rod is hinged with the balance force taking connecting rod, and the other end of the balance connecting rod is hinged with the balance sliding block; one end of the supporting rod is hinged with the frame, and the other end of the supporting rod is hinged with the balance force taking connecting rod.

In the drive module, the driving component forms a four-bar mechanism, and the driven component and the transition slide block also form the four-bar mechanism together, so that the movement is determined. The output rod is used for outputting load to the punching module and the dynamic balance module.

The rocker acts like a fulcrum and the output rod moves in a lever-like mechanism. The output rod is used for outputting power to the dynamic balance module, and the labor-saving effect can be achieved under the condition that the force taking point of the balance force taking connecting rod is proper. The connection position of the balance force taking connecting rod and the output rod can be flexibly set so as to set the optimal output load according to the requirement.

The transition sliding block can bear side load on the basis of transmission so as to ensure that the output rod moves stably.

In addition, the dynamic balance module is independently arranged on the basis of being connected with the output rod due to the fact that the driving module is arranged, the arrangement position of the balance slide block can be more flexible, namely the balance slide block can be selectively arranged at a lower height, so that the overall gravity center of the equipment is reduced, and the stability of the equipment is improved.

Preferably, the force taking point of the balance force taking connecting rod is positioned on the N equally dividing point of the output rod, wherein N is more than or equal to 2.

The force take-off point positions can be designed as required to obtain a suitable output load.

Preferably, the connection point of the support rod and the balance force taking connecting rod is positioned at the midpoint of the balance force taking connecting rod.

Preferably, the number of the dynamic balance modules is two, and the two dynamic balance modules are opposite to each other left and right relative to the force taking point of the balance force taking connecting rod.

The two dynamic balance modules are symmetrically arranged, so that the left and right balance of movement is effectively ensured.

Preferably, the driving module further comprises a power piece and a driving shaft, wherein the driving shaft is in rotary movable connection with the rack, and the power piece drives the driving shaft to rotate; the driving part is an eccentric wheel arranged on the driving shaft.

Preferably, the power piece is a motor, and the power piece and the driving shaft are in belt transmission.

Preferably, the device further comprises a stroke adjusting module arranged on the frame, the rocker is connected with the frame through the stroke adjusting module, and the stroke adjusting module is used for adjusting the upper position and the lower position of the rocker.

The stroke adjusting module can adjust the rocker up and down, and under the premise of the position of the transition sliding block and the formation determination, the upper and lower positions of the rocker can adjust the movement range of the output rod, so that the stroke and the movement range of the stamping sliding block in the stamping module are adjusted, and the functions of adjusting the stamping stroke and the die closing height are achieved. The production and processing requirements of products with different stroke models of clients can be met simultaneously, the machine is multipurpose, flexible in production and convenient to produce and manage.

Preferably, the stroke adjusting module comprises a shell, an adjusting piece and an adjusting executing assembly, wherein the shell is fixedly arranged on the frame, and the adjusting piece is arranged in the shell and is limited to move along the axial direction relative to the shell;

the adjusting execution assembly comprises a worm gear and worm transmission mechanism, wherein a worm gear is sleeved outside the adjusting piece and is in threaded connection with the adjusting piece, the worm is in rotary movable connection with the shell, and the worm gear is meshed with the worm.

Preferably, a sealing cavity is arranged in the shell, and the adjusting piece is inserted into the sealing cavity;

the stroke adjusting module further comprises a locking driving piece, wherein the locking driving piece is positioned in the sealing cavity, and the locking driving piece is connected with the adjusting piece and moves synchronously; the locking driving piece is in sliding seal with the inner wall of the sealing cavity, a driving cavity is enclosed in the sealing cavity, and an interface is arranged in the driving cavity.

The stroke adjustment module can flexibly adjust the distance between the upper die and the lower die according to the size specification of a product to be processed, and improves the operation convenience and the processing quality.

Drawings

FIG. 1 is a schematic diagram of a stroke-adjustable multi-link punch press according to a first embodiment of the present utility model;

FIG. 2 is a diagram showing the equivalent motion of a stroke-adjustable multi-link punch press according to a first embodiment of the present utility model;

FIG. 3 is a diagram showing the equivalent motion of the driving module and the punching module in the stroke-adjustable multi-link punch press according to the first embodiment of the present utility model;

FIG. 4 is a schematic diagram showing the cooperation of a driving module and a punching module in a stroke-adjustable multi-bar linkage punching machine according to a first embodiment of the present utility model;

FIG. 5 is a diagram showing the equivalent motion of the dynamic balance module and the punch module in the stroke-adjustable multi-link punch press according to the first embodiment of the present utility model;

FIG. 6 is a schematic diagram showing the cooperation of a dynamic balance module and a punching module in a stroke-adjustable multi-bar punch press according to a first embodiment of the present utility model;

FIG. 7 is a schematic view of a first embodiment of a stroke adjustable multi-bar punch press forming an adjustment module according to the present utility model;

FIG. 8 is an enlarged view of a portion of FIG. 6 at A;

fig. 9 is a motion equivalent diagram of a stroke adjustable multi-link punch press according to a second embodiment of the present utility model.

Description of the embodiments

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Examples

As shown in fig. 1-6, a multi-link punch press with adjustable stroke comprises a frame 5, a driving module, a punching module, a dynamic balance module and a stroke adjustment module 2.

As shown in fig. 1-4, the driving module includes a driving assembly and a driven assembly. Specifically, the driving component comprises a driving piece 11, a driving connecting rod 12 and a transition sliding block 13, wherein the driving piece 11 is in rotary movable connection with the frame 5, and the transition sliding block 13 is in sliding connection with the frame 5. One end of the driving connecting rod 12 is rotatably and movably connected with the driving piece 11, and the other end of the driving connecting rod is hinged with the transition sliding block 13. The driven component comprises an output rod 14 and a rocker 15, the rocker 15 is rotatably and movably connected with the frame 5, one end of the output rod 14 is hinged with the rocker 15, and the other end of the output rod is hinged with the transition sliding block 13.

In the drive module, the driving component forms a four-bar mechanism, while the driven component and the transition slide 13 also form a four-bar mechanism together, so that the movement is determined. The output rod 14 is used to output load to the punching module and the dynamic balancing module.

The rocker 15 acts like a fulcrum and the output lever 14 moves in a nearly leverage mechanism. The force-taking point of the punching force-taking connecting rod 31 and the balance force-taking connecting rod 42 is proper, and the labor-saving effect can be achieved. The connection positions of the punch force take-off link 31 and the balance force take-off link 42 with the output lever 14 can be flexibly set so as to set an optimum output load according to the need.

The transition slide 13 can bear side load on the basis of transmission so as to ensure the stable movement of the output rod 14.

As shown in fig. 1-6, the stamping module includes a stamping force-taking connecting rod 31, a stamping slide block 32 and a stamping die, wherein the stamping slide block 32 is slidably connected with the frame 5. One end of the force taking connecting rod is hinged with the output rod 14, and the other end of the force taking connecting rod is hinged with the stamping sliding block 32; the stamping die comprises an upper die and a lower die, the upper die is connected with the stamping sliding block 32, and the lower die is arranged on the frame 5.

As shown in fig. 5 and 6, the dynamic balance module includes a balance force taking connecting rod 42, a supporting rod 41, a balance connecting rod 43 and a balance sliding block 44; the balance slide block 44 is slidably connected with the frame 5, and the balance force taking connecting rod 42 is hinged with the output rod 14. One end of the balance link 43 is hinged with the balance force-taking link 42, and the other end is hinged with the balance slider 44. One end of the supporting rod 41 is hinged with the frame 5, and the other end is hinged with the balance force taking connecting rod 42. Specifically, the connection point between the support bar 41 and the balance force-taking link 42 is preferably located at the midpoint of the balance force-taking link 42.

As shown in fig. 1-4, the stroke adjustment module 2 is disposed on the frame 5, the rocker 15 is connected with the frame 5 through the stroke adjustment module 2, and the stroke adjustment module 2 is used for adjusting the up-down position of the rocker 15.

As shown in fig. 7 and 8, in particular, the stroke adjustment module 2 includes a housing 5, an adjustment member 21 and an adjustment actuating assembly, the housing 5 is fixedly disposed on the frame 5, the adjustment member 21 is disposed in the housing 5 and is defined to be movable in an axial direction relative to the housing 5, and the rocker 15 is connected to the adjustment member 21. The adjusting execution assembly comprises a worm gear and worm transmission mechanism, wherein a worm wheel 22 is sleeved outside the adjusting piece 21 and is in threaded connection with the adjusting piece 21, a worm 26 is in rotary movable connection with the shell 5, and the worm wheel 22 is meshed with the worm 26.

As shown in fig. 7 and 8, in particular, the housing 5 is provided with a sealing cavity, and the adjusting member 21 is inserted into the sealing cavity. The stroke adjustment module 2 further comprises a locking driving member 24, wherein the locking driving member 24 is positioned in the sealing cavity, and the locking driving member 24 is connected with the adjustment member 21 and moves synchronously. The locking driving piece 24 is in sliding seal with the inner wall of the sealing cavity, a driving cavity 23 is enclosed in the sealing cavity, and an interface is arranged in the driving cavity 23. The stroke adjustment module 2 can flexibly adjust the distance between the upper die and the lower die according to the size specification of a product to be processed, and improves the operation convenience and the processing quality.

The stroke adjustment module 2 can adjust the rocker 15 from top to bottom, and under the premise of the position of the transition slide block 13 and forming determination, the upper and lower positions of the rocker 15 can adjust the movement range of the output rod 14, so as to adjust the stroke and the movement range of the punching slide block 32 in the punching module, and further play a role in adjusting the punching stroke and the die assembly height, so as to adapt to the punching requirements of products with different specifications.

When the punch press performs punching processing, high-pressure fluid is introduced into the driving cavity 23, the locking driving piece 24 axially compresses, the adjusting piece 21 and the worm wheel 22 are synchronously driven to compress, and the stroke adjusting module 2 enters a locking state. When the stroke adjustment operation is required, the high-pressure fluid in the driving cavity 23 is discharged, the worm wheel 22 is unlocked, the external driving worm 26 rotates to drive the worm wheel 22 to rotate, and then the adjusting piece 21 is driven to axially move, so that the up-and-down position adjustment of the rocker 15 is completed, and the stroke adjustment and die closing height adjustment of the punching slider 32 are realized.

The driving module, the stamping module and the dynamic balance module jointly form a multi-link structure, and the calculation formula is calculated according to the degree of freedom of the multi-link mechanism: f=3n—2pl—ph, where n is the number of moving members, pl is the low number of pairs, ph is the high number of pairs. In the multi-link mechanism of the present application, n is 15, pl is 22, ph is 0, the degree of freedom f=1, and the driving source (driving element 11) of the present application is also one, so the movement of the multi-link mechanism of the present application is determined.

The drive modules were analyzed separately, n being 5, pl being 7, ph being 0, resulting in a degree of freedom f=1, and the drive source of the present drive module being one, so that even if the drive module is independent in the present application, the movement is determined.

In this application, owing to set up drive module, punching press module and dynamic balance module independently set up on the basis of being connected with output rod 14 respectively, and the setting position of balance slider 44 can be more nimble, and the balance slider 44 can select to set up at lower height promptly to reduce the whole focus of equipment, improve the stability of equipment. Meanwhile, as the stamping module and the dynamic balance module take force from the output rod 14, the dynamic balance module and the stamping module can still synchronously and coordinately move so as to meet the requirement of dynamic balance.

As a specific embodiment, as shown in FIGS. 2, 3 and 5, the force-taking point of the punch force-taking link 31 is located at the N bisector of the output rod 14, where N.gtoreq.2. The force taking point of the balance force taking link 42 is overlapped with the force taking point of the press force taking link 31. The force take-off point positions can be designed as required to obtain a suitable output load. Specifically, the force take-off point of the press force take-off link 31 is a point on the output rod 14 connected to the press force take-off link 31. Similarly, the point of force extraction of the balance force extraction link 42 is the point on the output rod 14 where the balance force extraction link 42 is connected.

As shown in fig. 5, the number of dynamic balancing modules is two, and the two dynamic balancing modules are opposite to each other about the force taking point of the balancing force taking link 42. The two dynamic balance modules are symmetrically arranged, so that the left and right balance of movement is effectively ensured.

As shown in fig. 1, in particular, the driving module further includes a power member and a driving shaft 16, where the driving shaft is rotatably and movably connected with the frame 5, and the power member drives the driving shaft to rotate; the driving part 11 is an eccentric wheel arranged on the driving shaft. The power piece is preferably a motor, and the power piece and the driving shaft are in belt transmission.

Examples

As shown in fig. 9, the present embodiment is different from the first embodiment in that: the number of the driving components is one, and the number of the driven components is not less than two. The stamping module, the dynamic balance module and the stroke adjustment module 2 are in one-to-one correspondence with the driven components. Two driven assemblies are illustrated in fig. 9.

The multi-head stamping can be realized on the premise of a single active component, the stamping processing efficiency is improved, and the equipment cost is saved.

In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. A dynamic balancing mechanism of a punch press, comprising at least:

a frame;

2. The dynamic balancing mechanism of a punch press of claim 1, wherein: the force taking point of the balance force taking connecting rod is positioned on the N equally dividing point of the output rod, wherein N is more than or equal to 2.

3. The dynamic balancing mechanism of a punch press of claim 1, wherein: the connection point of the support rod and the balance force taking connecting rod is positioned at the midpoint of the balance force taking connecting rod.

4. The dynamic balancing mechanism of a punch press of claim 1, wherein: the number of the dynamic balance modules is two, and the two dynamic balance modules are opposite to each other left and right relative to the force taking points of the balance force taking connecting rod.

5. The dynamic balancing mechanism of a punch press of claim 1, wherein: the driving module further comprises a power piece and a driving shaft, the driving shaft is in rotary movable connection with the rack, and the power piece drives the driving shaft to rotate; the driving part is an eccentric wheel arranged on the driving shaft.

6. The dynamic balancing mechanism of a punch press of claim 5, wherein: the power piece is a motor, and the power piece and the driving shaft are in belt transmission.

7. The dynamic balancing mechanism of a punch press according to any one of claims 1 to 6, wherein: the device also comprises a stroke adjusting module arranged on the frame, wherein the rocker is connected with the frame through the stroke adjusting module, and the stroke adjusting module is used for adjusting the upper position and the lower position of the rocker.

8. The dynamic balancing mechanism of a punch press of claim 7, wherein: the stroke adjusting module comprises a shell, an adjusting piece and an adjusting executing assembly, wherein the shell is fixedly arranged on the rack, and the adjusting piece is arranged in the shell and is limited to move axially relative to the shell;

9. The dynamic balancing mechanism of a punch press of claim 8, wherein: a sealing cavity is arranged in the shell, and the adjusting piece is inserted into the sealing cavity;