CN219130492U

CN219130492U - Four-column four-hole hydraulic punching machine with adjustable hole pitch

Info

Publication number: CN219130492U
Application number: CN202223529083.2U
Authority: CN
Inventors: 郑赵强; 王玉华; 钱小柱
Original assignee: Zhengzhou Huanghe Zhonggong Electromechanical Technology Co ltd
Current assignee: Zhengzhou Huanghe Zhonggong Electromechanical Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-06
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of punching equipment, and discloses a four-column four-hole adjustable-pitch hydraulic punching machine, wherein a four-hole punch assembly with adjustable pitch is arranged on the lower end face of a flange, a four-hole punch assembly with adjustable pitch, which is correspondingly matched with the four-hole punch assembly, is arranged on the upper end face of the lower flange, and four-hole punching is realized through the punching matching of the four-hole punch assembly and the four-hole punch assembly. Four holes can be punched at a time, punching hole distances are adjustable, punching requirements of different hole distance sizes are met, positioning is more accurate, the positions of the four holes are more coordinated, the defects that the positions are required to be adjusted and the positions are required to be repositioned by adopting double-hole punching are overcome, efficiency is higher, qualification rate is higher, and product quality is more guaranteed. The punching machine can realize punching requirements of double holes, three holes and single hole, has the characteristics of multiple functions, simple structure, simple and convenient operation, small volume, high integration level, strong practicability and good use effect.

Description

Four-column four-hole hydraulic punching machine with adjustable hole pitch

Technical Field

The utility model relates to the technical field of punching equipment, in particular to a four-column four-hole hydraulic punching machine with adjustable hole pitch.

Background

In connection of section steel such as I-steel, other steel plates and structural members, when the steel plate connecting piece is adopted, four connecting holes are usually required to be punched at each connecting end of the connecting plate, and the connection is carried out through four bolts, so that the stability and the reliability of the connecting structure are improved.

In the prior art, the requirement of four holes is finished by adopting a double-hole punching machine to punch twice, and the defects are that: because the steel plate needs to be moved between two times of punching, labor intensity is increased, production efficiency is low, more importantly, when two holes are punched after the first two holes are positioned, the steel plate needs to be positioned again after the second two holes are punched, on one hand, because personnel operation is unskilled or tired and attention is not concentrated, on the other hand, tasks are used continuously and then generate deviation, the two times of positioning are inconsistent, the situation of inaccurate deflection positioning among four holes is caused, and the quality and qualification rate of products are affected.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a four-column four-hole adjustable pitch hydraulic punching machine, which can punch four holes at a time to avoid the defect of twice punching, can adjust the distance between four holes to meet the requirements of different pitch sizes, and can be used for punching double holes, three holes and single holes.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides a four-column four-hole adjustable pitch hydraulic punching machine, which comprises a frame and four stand that set up in the frame, four stand go up to set gradually flange from bottom to top, well flange and lower flange, go up flange and lower flange and stand fixed connection, well flange and stand sliding connection are provided with power cylinder on the upper flange, power cylinder's lower extreme and well flange connection, be provided with the four-hole punch assembly of adjustable pitch on the lower terminal surface of well flange, be provided with on the up end of lower flange with the corresponding complex four-hole punch assembly of four-hole punch assembly adjustable pitch, realize four-hole punching through four-hole punch assembly and four-hole punch assembly punching cooperation.

The four-hole punch assembly comprises two punch die sets which are arranged in parallel, the two punch die sets are both in sliding connection with the lower end face of the middle flange and are respectively driven to translate through corresponding first screw assemblies, each punch die set is provided with two punch die bases in a sliding mode and are respectively driven to translate through corresponding second screw assemblies, and punches are correspondingly arranged on each punch die base.

The four-hole die assembly comprises two die modules which are arranged in parallel, the two die modules are both in sliding connection with the upper end face of the lower flange and respectively drive the lower flange to translate through corresponding third screw assemblies, each group of die modules is provided with two die holders in a sliding manner and respectively drive the lower flange to translate through corresponding fourth screw assemblies, and punching female dies are correspondingly arranged on each die holder.

And a stripper plate is arranged on the four-hole die assembly.

The number of the stripper plates is two, and the two stripper plates are respectively arranged on the two die modules through the connecting upright posts.

A travel switch mechanism is arranged between the cylinder body of the power cylinder and the piston rod.

The travel switch mechanism comprises two travel switches arranged on the cylinder body through a bracket and an induction block arranged on the piston rod.

The screw assembly comprises a bearing seat and an adjusting screw, the adjusting screw is arranged on the bearing seat through a bearing, and a hand wheel is arranged at one end of the adjusting screw.

The lower flange is provided with sliding tables on the front side and the rear side of the four-hole die assembly respectively, and universal balls are arranged on the table top of the sliding tables.

The sliding workbench is provided with a limiting plate.

The beneficial effects obtained by the utility model are as follows:

1. the four holes can be punched at one time, the positioning is more accurate, the positions of the four holes are more coordinated, the defects of adopting double-hole punching and needing to adjust the positions and repositioning are avoided, the efficiency is higher, the qualification rate is higher, and the product quality is more ensured.

2. The punch head and the punching groove of the punching machine can be adjusted in relative positions in the plane, so that the adjustment of the punching pitch is realized, and the punching requirements of different pitch sizes are met.

3. The punching machine not only can punch four holes at a time, but also can adjust the number of the punches and the punching grooves according to the needs, so as to realize the punching requirements of double holes, three holes and single holes, and has multiple purposes, and the punching spacing of the double holes and the three holes can be adjusted.

4. The utility model has the characteristics of simple structure, simple and convenient operation, small volume, high integration level, strong practicability and good use effect.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic perspective view of a punching machine according to the present utility model;

FIG. 2 is a schematic elevational view of a punch according to the present utility model;

FIG. 3 is a schematic diagram of the upper structure of the punching machine according to the embodiment;

FIG. 4 is a schematic structural view of a four hole punch assembly on a middle flange;

FIG. 5 is a schematic structural view of a punch module;

FIG. 6 is a schematic diagram of a four hole die assembly on a lower flange;

FIG. 7 is a schematic cross-sectional view of a die set;

FIG. 8 is a schematic view of the structure of a die set;

fig. 9 is a schematic view of the structure of the screw assembly.

Detailed Description

The following description of the embodiments of the present application, taken in conjunction with the accompanying drawings, will be clearly and fully described, given by way of illustration of some, but not all embodiments of the utility model. All other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present utility model.

Embodiments, see FIGS. 1-9

1-3, see four-column four-hole adjustable pitch hydraulic punching machine, including frame 1 and oil tank assembly 4, be provided with oil pump motor assembly 2 in the frame 1, switch board 7, radiator 5 and ejection of compact conveyer belt 3, be provided with four stand 11 on the frame 1, four stand 11 have set gradually flange 14 from bottom to top on, well flange 12 and lower flange 8, upper flange 14 and lower flange 8 and stand 11 fixed connection, well flange 12 and stand 11 sliding connection are provided with double nut 10 and uide bushing 13 on the stand 11, well flange 12 passes through uide bushing 13 and is connected with stand 11, the upper and lower end of stand 11 all is provided with double nut 10. The upper flange 14 is provided with a power cylinder 6, the power cylinder 6 is provided with hydraulic power oil by the oil pump motor assembly 2, a travel switch mechanism is arranged between a cylinder body and a piston rod of the power cylinder 6, and the travel switch mechanism comprises an upper travel switch 22 and a lower travel switch 22 which are arranged on the cylinder body through a bracket 16 and a sensing block 23 arranged on the piston rod, and is used for adjusting and controlling the travel distance of the power cylinder 6. The lower end of a piston rod of the power cylinder 6 is connected with the middle flange 12, a four-hole punch assembly 27 with adjustable hole pitch is arranged on the lower end face of the middle flange 12, a four-hole punch assembly 17 with adjustable hole pitch which is correspondingly matched with the four-hole punch assembly 27 is arranged on the upper end face of the lower flange 8, and four-hole punching is realized through the punching and matching of the four-hole punch assembly 27 and the four-hole punch assembly 17.

Referring to fig. 4 and 5, in this embodiment, the four-hole punch assembly 27 includes two sets of punch modules 27-1 disposed in parallel, where the two sets of punch modules 27-1 are slidably connected to the lower end surface of the middle flange 12, and are respectively driven to translate by corresponding first screw assemblies 27-15, so that the displacement of the two punch modules 27-1 can be respectively or simultaneously adjusted. Two parallel first T-shaped long grooves 12-1 are arranged on the lower end face of the middle flange 12, first T-shaped keys 27-21 correspondingly matched and connected with the first T-shaped long grooves 12-1 are arranged on the top faces of the two punch modules 27-1, and the first T-shaped keys 27-21 are connected and locked with first locking screws 25 on the punch modules 27-1.

Each punch module 27-1 is slidably provided with two punch holders 20, and is driven to translate by a corresponding second screw assembly 20-15, so that the displacement of the two punch holders 20 can be adjusted respectively or simultaneously. The punch module 27-1 comprises a top seat 20-1, two second T-shaped long grooves 20-6 are formed in the top seat 20-1 along the length direction of the top seat, second T-shaped keys 20-21 correspondingly matched and connected with the second T-shaped long grooves 20-6 are arranged on the two punch die holders 20, and the second T-shaped keys 20-21 are connected and locked with second locking screws 20-5 on the punch die holders 20. The punch 20-4 is correspondingly arranged on each punch die holder 20 through a punch nut 20-3.

Referring to fig. 6-8, the four-hole die assembly 17 includes two die sets 17-1 disposed in parallel, where the two die sets 17-1 are slidably connected to the upper end surface of the lower flange 8, and are respectively driven to translate by corresponding third screw assemblies 17-15, so that the displacement of the two die sets 17-1 can be respectively or simultaneously adjusted. Two parallel third T-shaped long grooves 8-1 are distributed on the upper end face of the lower flange 8, third T-shaped keys 17-21 correspondingly matched and connected with the third T-shaped long grooves 8-1 are arranged on the bottom faces of the two die modules 17-1, and the third T-shaped keys 17-21 are connected and locked with third locking screws 24 on the die modules 17-1.

Each group of die modules 17-1 is slidably provided with two die holders 19-2, and is respectively driven to translate by corresponding fourth screw assemblies 19-15, so that the displacement of the two die holders 19-2 can be respectively or simultaneously adjusted. The die set 17-1 comprises a base 19-1, two fourth T-shaped long grooves 19-9 are formed in the base 19-1 along the length direction of the base, fourth T-shaped keys 19-21 correspondingly matched and connected with the fourth T-shaped long grooves 19-9 are arranged on the two die holders 19-2, and the fourth T-shaped keys 19-21 are connected and locked with fourth locking screws 19-3 on the die holders 19-2. Punching female dies 19-8 are correspondingly arranged on each punching die holder 19-2.

The four-hole die assembly 17 is provided with two stripper plates 19-6, in this embodiment, the two stripper plates 19-6 are respectively provided with two die modules 17-1 through corresponding connecting columns 19-4, specifically, two connecting columns 19-4 are provided on a base 19-1 of the die module 17-1, two ends of the stripper plates 19-6 are respectively connected with the top ends of the two connecting columns 19-4 correspondingly, and locking nuts 19-7 and adjusting nuts 19-5 are respectively provided on the columns 19-4 on the upper side and the lower side of the stripper plates 19-6 so as to adjust the height of the stripper plates 19-6.

Blanking holes corresponding to the stamping die holders 19-2 are formed in the lower flange 8 and the frame 1 so that blanking generated in the stamping process falls onto the discharging conveyor belt 3 for collection.

In this embodiment, the first screw assembly 27-15, the second screw assembly 20-15, the third screw assembly 17-15 and the fourth screw assembly 19-15 are all of screw assembly structures, and referring to fig. 9, the screw assemblies include a bearing block 15-1 and an adjusting screw 15-4, the adjusting screw 15-4 is disposed on the bearing block 15-1 through a bearing 15-2, a hole clamp spring 15-3 is disposed on the bearing block 15-1 on the bearing 15-2, and a hand wheel 15-5 is disposed at a non-threaded end of the adjusting screw 15-4 and fastened through a fixing screw 15-6. When the screw assembly is installed and used, the screw assembly is in threaded connection with a corresponding movable piece through the adjusting screw 15-4, and the bearing seat 15-1 is fixed on a base, a top seat or a base corresponding to the movable piece.

Further as a preferable scheme, the lower flange 8 is respectively provided with a sliding workbench 9 at the front side and the rear side of the four-hole die assembly 17, the edge of the sliding workbench 9 is provided with a transverse long hole 9-1, and the table top of the sliding workbench 9 is provided with a universal ball 9-2, so that the steel plate can be conveniently moved. Limiting plates 18 are arranged between the front sliding workbench 9 and the rear sliding workbench 9, two ends of each limiting plate 18 are connected with the corresponding transverse long hole 9-1 through connecting pieces, and the fixing positions of the limiting plates 18 can be adjusted through elastic connecting pieces, so that punching positions on the steel plates are conveniently controlled.

The operation and use method of the utility model is as follows:

and (3) filling a proper amount of hydraulic oil into the oil tank assembly, starting the electrical control cabinet, observing the steering of the motor, setting the travel distance, adjusting the hole distance and adjusting the pressure of the gap between the discharging plates to check whether the oil way leaks. The following examples illustrate the required hole diameters of 4 to phi 26, plate thicknesses of 20, in mm, with a punch pitch of 150 x 300.

1. Four hole die assembly adjustment

a, replacing punching female dies 19-8 with 4 plate thicknesses 20 and punching diameters 26;

b, loosening the fourth locking screw 19-3, adjusting the fourth screw assembly 19-15, respectively or simultaneously adjusting the displacement of the die holder 19-2, enabling the hole pitch to reach 150, and then locking the fourth locking screw 19-3, wherein the other group of die modules 17-1 are operated in the same manner;

c, loosening the third locking screw 24, adjusting the third screw assembly 17-15, respectively or simultaneously adjusting the displacement of the die set 17-1, reaching 300 hole pitch and then locking the third locking screw 24;

d, loosening the locking nut 19-7, adjusting the adjusting nut 19-5 to enable the distance from the lower end surface of the stripper plate 19-6 to the end surface of the punching die 19-8 to reach the use parameter (23 mm for example), and fastening the locking nut 19-7. Both sets of stripper plates operate the same.

2. Four-hole punch assembly adjustment

a, installing a replacement punch 20-4, wherein the diameter of the punch is 26,4 punch nuts 20-3 are replaced and locked at the same time;

b, loosening the second locking screw 20-5, adjusting the second screw assembly 20-15, respectively or simultaneously adjusting the displacement of the punch die holder 20, enabling the hole pitch to reach 150, and then locking the second locking screw 20-5, wherein the other group of punch die sets 27-1 operate in the same manner;

c, loosening the first locking screw 25, adjusting the first screw assembly 27-15, respectively or simultaneously adjusting the displacement of the punch module 27-1, the pitch of the holes reaches 300, and then locking the first locking screw 25.

3. Oil cylinder stroke and other adjustment

The oil pump motor assembly 2 is started by oil cylinder working stroke adjustment, the oil cylinder 6 is moved downwards by the click operation to observe that the punch 20-4 and the female die 19-8 are centered (i.e. concentricity), the punch is continuously moved downwards by 20mm after the cutting edges are aligned, the lower limit travel switch 22 is fixed, then the oil cylinder 6 is moved upwards by click, and when the lowest end of the punch 20-4 and the lower end face of the stripper plate 19-6 are overlapped, the upper limit travel switch 22 is fixed. The distance from the hole to the limiting plate 18 (hole to steel plate edge distance) is adjusted, and then the limiting plate 18 is locked. Then, the steel plate is put on the sliding workbench 9, one side of the steel plate is tightly attached to the limiting plate 18, the first piece is punched, and whether blanking falls into the discharging conveyor belt 3 or not is checked, and the blanking is sent into a waste frame outside the machine frame 1. And checking the first part, and carrying out mass production after the first part is qualified. And if not, side adjusting parameters to meet the requirement of workpiece parameters.

While embodiments of the present utility model have been illustrated and described, it will be appreciated by those of ordinary skill in the art that: the foregoing examples are merely illustrative of the principles and structures of this utility model and various changes and modifications can be made without departing from the spirit and scope of the utility model and these changes and modifications fall within the scope of the utility model.

Claims

1. The utility model provides a four-column four-hole adjustable pitch hydraulic punching machine, includes the frame and sets up four stands in the frame, has set gradually flange, well flange and lower flange from bottom to top on four stands, goes up flange and lower flange and stand fixed connection, well flange and stand sliding connection are provided with power cylinder on the upper flange, power cylinder's lower extreme and well flange connection, its characterized in that: the lower end face of the middle flange is provided with a four-hole punch assembly with adjustable hole pitch, the upper end face of the lower flange is provided with a four-hole punch assembly with adjustable hole pitch, and the four-hole punch assembly is matched with the four-hole punch assembly in a punching mode to realize four-hole punching.

2. The four-column four-hole adjustable pitch hydraulic punch as recited in claim 1, wherein: the four-hole punch assembly comprises two punch die sets which are arranged in parallel, the two punch die sets are both in sliding connection with the lower end face of the middle flange and are respectively driven to translate through corresponding first screw assemblies, each punch die set is provided with two punch die bases in a sliding mode and are respectively driven to translate through corresponding second screw assemblies, and punches are correspondingly arranged on each punch die base.

3. The four-column four-hole adjustable pitch hydraulic punch as recited in claim 1, wherein: the four-hole die assembly comprises two die modules which are arranged in parallel, the two die modules are both in sliding connection with the upper end face of the lower flange and respectively drive the lower flange to translate through corresponding third screw assemblies, each group of die modules is provided with two die holders in a sliding manner and respectively drive the lower flange to translate through corresponding fourth screw assemblies, and punching female dies are correspondingly arranged on each die holder.

4. The four-column four-hole adjustable pitch hydraulic punch as recited in claim 1, wherein: and a stripper plate is arranged on the four-hole die assembly.

5. The four-column four-hole adjustable pitch hydraulic punching machine as claimed in claim 4, wherein: the number of the stripper plates is two, and the two stripper plates are respectively arranged on the two die modules through the connecting upright posts.

6. The four-column four-hole adjustable pitch hydraulic punch as recited in claim 1, wherein: a travel switch mechanism is arranged between the cylinder body of the power cylinder and the piston rod.

7. The four-column four-hole adjustable pitch hydraulic punch as recited in claim 6 wherein: the travel switch mechanism comprises two travel switches arranged on the cylinder body through a bracket and an induction block arranged on the piston rod.

8. A four-column four-hole adjustable pitch hydraulic punch according to claim 2 or 3 and wherein: the screw assembly comprises a bearing seat and an adjusting screw, the adjusting screw is arranged on the bearing seat through a bearing, and a hand wheel is arranged at one end of the adjusting screw.

9. The four-column four-hole adjustable pitch hydraulic punch as recited in claim 1, wherein: the lower flange is provided with sliding tables on the front side and the rear side of the four-hole die assembly respectively, and universal balls are arranged on the table top of the sliding tables.

10. The four-column four-hole adjustable pitch hydraulic punch as recited in claim 9 wherein: the sliding workbench is provided with a limiting plate.