CN218192007U

CN218192007U - Punching assembly and punching machine

Info

Publication number: CN218192007U
Application number: CN202222635955.7U
Authority: CN
Inventors: 高意航; 陈郎; 唐大春
Original assignee: Shaanxi Dongfeng Coal Mine Equipment Co ltd
Current assignee: Shaanxi Dongfeng Coal Mine Equipment Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-01-03
Anticipated expiration: 2032-10-08

Abstract

The application relates to the field of punching equipment, in particular to a punching assembly and a punching machine, which comprise a punch, a punch rod and a sleeve; one end of the punch rod is in threaded connection with the inner peripheral side of the sleeve, and a stepped hole is formed in one end, far away from the punch rod, of the sleeve; the mounting end of the punch is integrally connected with a convex ring matched with the stepped hole, and the punching end of the punch can penetrate through the stepped hole. The subassembly that punches a hole of design through the cooperation of the shoulder hole on the sleeve and the bulge loop on the drift, realizes the fixed to the drift, only needs to twist off the sleeve from the jumper bar when changing the drift, changes the drift, again with sleeve threaded connection on the jumper bar can, compare in original change flow, practiced thrift the time of adjusting a plurality of screws in proper order to promote the efficiency of changing the drift.

Description

Punching assembly and punching machine

Technical Field

The application relates to the field of punching equipment, in particular to a punching assembly and a punching machine.

Background

The punch refers to a metal part on a stamping die in a machine tool, and is called a punch rod, a punch pin or a punch, and is installed on the stamping die to perform continuous punching, stamping and breaking operations, so that a processed material is separated or plastically deformed, and a required finished product or a required semi-finished product is obtained. The punch and the punch rod form a punching assembly, the punching assembly is connected with a power assembly of the punching machine and acts on a workpiece under the driving of the power assembly, and therefore punching is achieved.

In order to solve the problem of poor adaptability of the existing punch connector, the patent document of application number 201820375268.7 discloses a punch connector with high interchangeability and a matched punch, wherein the top of the connector is connected with the power output end of a punching machine, the bottom of the connector is provided with a fixing part, the fixing part is matched with and connected with a punch, and the bottom of the connector and the contact surface connected with the top of the punch are parallel to a horizontal plane; the fixing part comprises a screw arranged on the punch connecting body, and the screw is perpendicular to the contact surface.

In view of the above-mentioned related technologies, the inventor believes that a punch connecting body and a matching punch with high interchangeability are designed, when punching holes with different specifications are formed, the punch needs to be replaced, when the punch is replaced, a plurality of screws fixed on the punch connecting body need to be sequentially adjusted until the screws are not fixedly connected with the punch any more, then the punch needs to be replaced, when the punch is installed, the screws need to be sequentially adjusted until the connecting punch is fixed, and the whole replacement process takes a long time and is low in efficiency.

SUMMERY OF THE UTILITY MODEL

In order to promote the efficiency of changing the drift, this application provides a punching assembly and piercing press.

The application provides a punching assembly and piercing press adopt following technical scheme:

in a first aspect, the present application provides a punch assembly.

A punching assembly comprises a punch, a punch rod and a sleeve; one end of the punch rod is in threaded connection with the inner peripheral side of the sleeve, and a stepped hole is formed in one end, far away from the punch rod, of the sleeve; the mounting end of the punch is integrally connected with a convex ring matched with the stepped hole, and the punching end of the punch can penetrate through the stepped hole.

By adopting the technical scheme, the drilling end of the punch penetrates through the stepped hole, and then the sleeve is connected to the punch rod in a threaded manner, so that the mounting end of the punch is tightly abutted against the punch rod, and the mounting of the punch is completed; the subassembly that punches a hole of design through the cooperation of the shoulder hole on the sleeve and the bulge loop on the drift, realizes the fixed to the drift, only needs to twist off the sleeve from the jumper bar when changing the drift, changes the drift, again with sleeve threaded connection on the jumper bar can, compare in original change flow, practiced thrift the time of adjusting a plurality of screws in proper order to promote the efficiency of changing the drift.

Optionally, one end of the punch rod, which is close to the sleeve, is coaxially provided with a limiting hole matched with the convex ring, and the hole wall of the limiting hole can be abutted to the peripheral side of the convex ring.

Through adopting above-mentioned technical scheme, the design with spacing hole of bulge loop assorted, can reduce the skew that the drift takes place at punching process.

Optionally, the anti-loosening device further comprises an anti-loosening ring, the anti-loosening ring is coaxially connected to the punch rod in a threaded mode, and one end, close to the punch, of the anti-loosening ring can be tightly abutted to the sleeve.

By adopting the technical scheme, the designed anti-loosening ring is tightly abutted to the sleeve, so that axial force is generated between the anti-loosening ring and the sleeve, and the friction force between the nut teeth of the sleeve and the bolt teeth on the punch is increased to prevent the sleeve from loosening.

Optionally, at least one force application hole is formed around the sleeve.

Through adopting above-mentioned technical scheme, the application of force hole of design is convenient for utilize tools such as inserted bar to adjust the sleeve.

In a second aspect, the present application provides a punching machine.

A punching machine comprises a workbench, a rack, a driving piece, a connecting assembly and a punching assembly; the frame is connected to the workbench; the driving piece is connected with the rack and used for driving the punch rod to move towards one side close to or far away from the machined workpiece along the axial direction of the driving piece, and the driving piece is connected with the punch rod through the connecting component.

Through adopting above-mentioned technical scheme, the piercing press of design provides the installation position for the driving piece through the frame, provides power for the jumper bar motion through the driving piece, is connected driving piece and jumper bar through coupling assembling.

Optionally, the driving member includes a hydraulic cylinder, a piston rod of the hydraulic cylinder is coaxially connected with the plunger through the connecting assembly, and the hydraulic cylinder is connected with the frame.

Through adopting above-mentioned technical scheme, the driving piece of design passes through the motion of pneumatic cylinder drive jumper bar.

Optionally, the connecting assembly comprises a circular disc and a square plate; the rack comprises a mounting plate and four vertical rods, the four vertical rods are arranged in parallel, the axes of the vertical rods are perpendicular to the plane of the mounting plate, one end of each vertical rod is connected with the mounting plate, and the other end of each vertical rod is connected with the workbench; the hydraulic cylinder is connected above the mounting plate, a piston rod of the hydraulic cylinder penetrates through one end of the mounting plate and is coaxially in threaded connection with the disc, and a sliding gap is reserved between the mounting plate and the piston rod of the hydraulic cylinder; the square plate is positioned below the disc, the four vertical rods respectively penetrate through four corners of the square plate, the vertical rods are connected with the square plate in a sliding mode, and the disc is connected with the square plate through a plurality of bolts; the axis of the punch rod is perpendicular to the plane of the square plate, the punch rod is coaxially arranged with the piston rod of the hydraulic cylinder, and one end of the punch rod, which is far away from the punch, is in threaded connection with the square plate.

Through adopting above-mentioned technical scheme, the coupling assembling of design, through the cooperation of the piston rod of disc and pneumatic cylinder, square board and jumper bar, realizes being connected of jumper bar and pneumatic cylinder, and through square board and montant sliding connection, can reduce the skew that the jumper bar produced at the in-process that punches a hole.

Optionally, a tool frame is arranged on one side of the workbench.

Through adopting above-mentioned technical scheme, the instrument frame of design is convenient for concentrate and is placed all kinds of instruments that use and the drift of various specifications in the course of working, avoids the instrument to put in disorder and can not in time find when leading to the use to influence machining efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the designed punching assembly realizes the fixation of the punch through the matching of the stepped hole on the sleeve and the convex ring on the punch, only the sleeve needs to be unscrewed from the punch rod in the process of replacing the punch, the punch is replaced, and then the sleeve is connected to the punch rod in a threaded manner, so that compared with the original replacement process, the time for sequentially adjusting a plurality of screws is saved, and the efficiency of replacing the punch is improved;

2. the designed punching assembly realizes the connection of the punch rod and the hydraulic cylinder through the matching of the disc and the piston rod of the hydraulic cylinder, and the square plate and the punch rod, and can reduce the offset generated by the punch rod in the punching process through the sliding connection of the square plate and the vertical rod;

3. the designed punching machine has the advantages that various tools used in the machining process and punches of various specifications are intensively placed in the tool frame, so that the situation that the tools cannot be found in time when being used due to the fact that the tools are placed randomly is avoided, and machining efficiency is affected.

Drawings

Fig. 1 is a schematic view of the overall structure of a punching assembly according to embodiment 1 of the present application.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is a schematic view of the overall structure of a punching machine according to embodiment 2 of the present application.

Fig. 4 is a partial structural view of a punching machine according to embodiment 2 of the present application.

Fig. 5 is a cross-sectional view of fig. 4.

Description of reference numerals: 1. a punch; 11. a convex ring; 2. punching; 21. a limiting hole; 3. a sleeve; 31. a stepped hole; 32. a force application hole; 4. an anti-loosening ring; 5. a work table; 51. a tool frame; 6. a frame; 61. mounting a plate; 62. a vertical rod; 7. a drive member; 71. a hydraulic cylinder; 8. a connecting assembly; 81. a disc; 82. a square plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a punching assembly and a punching machine.

Example 1

Referring to fig. 1 and 2, the punching assembly includes a punch 1, a punch stem 2, a sleeve 3, and an anti-loose ring 4; one end of the punch rod 2 is in threaded connection with the inner peripheral side of the sleeve 3, a stepped hole 31 is coaxially formed in one end, away from the punch rod 2, of the sleeve 3, a convex ring 11 matched with the stepped hole 31 is integrally connected to the mounting end of the punch rod 2, in order to apply force to the sleeve 3, four force application holes 32 are formed in the peripheral side of the sleeve 3, and the four force application holes 32 are uniformly distributed along the circumferential direction of the sleeve 3; the anti-loosening ring 4 is coaxially sleeved on the punch rod 2, the inner peripheral side of the anti-loosening ring 4 is in threaded connection with the peripheral side of the punch rod 2, and one end, close to the punch 1, of the anti-loosening ring 4 can be tightly abutted to the sleeve 3.

The implementation principle of the punching assembly in embodiment 1 of the application is as follows: the punching end of the punch rod 2 penetrates through the stepped hole 31, the peripheral side of the convex ring 11 is abutted to the hole wall of the stepped hole 31, then the sleeve 3 is connected to one end of the punch rod 2 in a threaded mode, the sleeve 3 is adjusted until the peripheral side of the convex ring 11 is abutted to the hole wall of the limiting hole 21, and then the anti-loosening ring 4 is adjusted until one end, close to the punch 1, of the anti-loosening ring 4 is abutted to the sleeve 3.

Example 2

Referring to fig. 3, the punching machine comprises a table 5, a frame 6, a driving member 7, a connecting assembly 8, and the punching assembly described in embodiment 1.

Referring to fig. 3, a tool frame 51 is connected to one side of the table 5 by bolts; the rack 6 comprises a mounting plate 61 and four vertical rods 62, the axes of the vertical rods 62 are vertical to the plane of the mounting plate 61, and the four vertical rods 62 respectively penetrate through four corners of the mounting plate 61 and are fixed through nuts; the end of the vertical rod 62 away from the mounting plate 61 passes through the working table 5 and is fixed by a nut.

With reference to fig. 3, the drive 7 comprises a hydraulic cylinder 71; the hydraulic cylinder 71 is fixed to the mounting plate 61 by bolts, and a piston rod of the hydraulic cylinder 71 passes through the mounting plate 61 with a sliding gap between the mounting plate 61 and the piston rod of the hydraulic cylinder 71.

Referring to fig. 3, the connecting assembly 8 includes a circular disc 81 and a square plate 82, the circular disc 81 and the square plate 82 are sequentially disposed between the mounting plate 61 and the workbench 5 from top to bottom, the circular disc 81 is coaxially disposed with the piston rod of the hydraulic cylinder 71, and the piston rod of the hydraulic cylinder 71 extends into the circular disc 81 through one end of the mounting plate 61 and is in threaded connection with the circular disc 81; the four vertical rods 62 respectively penetrate through four corners of the square plate 82 and are connected with the square plate 82 in a sliding mode.

Referring to fig. 3, the axis of the punch 2 is perpendicular to the plane of the square plate 82, the punch 2 is coaxial with the piston rod of the hydraulic cylinder 71, and one end of the punch 2, which is far away from the punch 1, extends into the square plate 82 and is in threaded connection with the square plate 82.

Referring to fig. 4 and 5, four bolts are arranged on the circular disc 81, the four bolts are uniformly distributed along the circumferential direction of the circular disc 81, the bolts penetrate through one end of the circular disc 81 and extend into the square plate 82, and the bolts are in threaded connection with the circular disc 81 and the square plate 82.

The implementation principle of the punching machine in embodiment 2 of the application is as follows: firstly, the punch rod 2 is in threaded connection with the square plate 82, a piston rod of the hydraulic cylinder 71 is in threaded connection with the disc 81, then the punching end of the punch rod 2 penetrates through the stepped hole 31, the peripheral side of the convex ring 11 is abutted against the hole wall of the stepped hole 31, the sleeve 3 is in threaded connection with one end of the punch rod 2, then the sleeve 3 is adjusted until the peripheral side of the convex ring 11 is abutted against the hole wall of the limiting hole 21, then the anti-loosening ring 4 is adjusted until one end, close to the punch 1, of the anti-loosening ring 4 is abutted against the sleeve 3, the punch 1 is fixed, the hydraulic cylinder 71 is started, and the hydraulic cylinder 71 drives the punch 1 to process a workpiece.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A punch assembly, comprising: comprises a punch head (1), a punch rod (2) and a sleeve (3);

one end of the punch rod (2) is in threaded connection with the inner peripheral side of the sleeve (3), and a stepped hole (31) is formed in one end, far away from the punch rod (2), of the sleeve (3);

the mounting end of the punch (1) is integrally connected with a convex ring (11) matched with the stepped hole (31), and the punching end of the punch (1) can penetrate through the stepped hole (31).

2. The punch assembly of claim 1, wherein: the punch rod (2) is close to one end of the sleeve (3) and is coaxially provided with a limiting hole (21) matched with the convex ring (11), and the hole wall of the limiting hole (21) can be abutted to the peripheral side of the convex ring (11).

3. The punch assembly of claim 1, wherein: the anti-loosening punch is characterized by further comprising an anti-loosening ring (4), wherein the anti-loosening ring (4) is coaxially connected onto the punch rod (2) in a threaded mode, and one end, close to the punch head (1), of the anti-loosening ring (4) can be tightly abutted to the sleeve (3).

4. The punch assembly of claim 1, wherein: at least one force application hole (32) is formed in the peripheral side of the sleeve (3).

5. A punching machine is characterized in that: comprising a table (5), a frame (6), a drive member (7), a connecting assembly (8) and a punch assembly according to any one of claims 1-4;

the frame (6) is connected to the workbench (5);

the driving piece (7) is connected with the rack (6) and used for driving the punch rod (2) to move towards one side close to or far away from a machined workpiece along the axial direction of the driving piece, and the driving piece (7) is connected with the punch rod (2) through the connecting component (8).

6. The punching machine according to claim 5, wherein: the driving piece (7) comprises a hydraulic cylinder (71), a piston rod of the hydraulic cylinder (71) is coaxially connected with the punch rod (2) through the connecting component (8), and the hydraulic cylinder (71) is connected with the rack (6).

7. The punching machine of claim 6, wherein: the connecting assembly (8) comprises a disc (81) and a square plate (82);

the rack (6) comprises a mounting plate (61) and four vertical rods (62), the four vertical rods (62) are arranged in parallel, the axis of each vertical rod (62) is perpendicular to the plane of the mounting plate (61), one end of each vertical rod (62) is connected with the mounting plate (61), and the other end of each vertical rod (62) is connected with the workbench (5);

the hydraulic cylinder (71) is connected above the mounting plate (61), a piston rod of the hydraulic cylinder (71) penetrates through one end of the mounting plate (61) and is coaxially connected with the disc (81) in a threaded manner, and a sliding gap is reserved between the mounting plate (61) and the piston rod of the hydraulic cylinder (71);

the square plate (82) is located below the circular disc (81), the four vertical rods (62) penetrate through four corners of the square plate (82) respectively, the vertical rods (62) are connected with the square plate (82) in a sliding mode, and the circular disc (81) is connected with the square plate (82) through a plurality of bolts;

the axis of the punch rod (2) is perpendicular to the plane where the square plate (82) is located, the punch rod (2) and a piston rod of the hydraulic cylinder (71) are coaxially arranged, and one end, far away from the punch head (1), of the punch rod (2) is in threaded connection with the square plate (82).

8. The punching machine according to claim 5, wherein: one side of the workbench (5) is provided with a tool frame (51).