Die changing device of large punching machine

Abstract

The utility model relates to a die changing device of a large punching machine. The front baffle and the rear baffle are arranged at the two ends of the supporting main frame respectively; the transmission mechanism comprises a servo motor, a threaded lead screw and a moving frame, and the moving frame is arranged outside the threaded lead screw and is in threaded transmission connection with the threaded lead screw; and the moving table is connected with the moving frame through a screw. Through the arrangement of the servo motor, the threaded lead screw, the moving frame and other components, the moving frame can be driven by the threaded lead screw to move in the direction of the moving groove through the matching relation between the servo motor and the threaded lead screw, and then the moving table is driven to move together; the effect of limiting the movement of the movable table is achieved, and the movable table can stretch out of the interior of the supporting main frame in the movement process and stretch to a platform of the punching machine, so that the effect of replacing a mold is achieved.

Description

Technical Field

[0001] The utility model relates to a die replacement device for a large punching machine, in particular to a die replacement device for a large punching machine. Background Art

[0002] The full name of stamping machine is stamping press. Stamping production is mainly for sheet metal. Through the mold, it can make blanking, punching, forming, drawing, trimming, fine blanking, shaping, riveting and extrusion, etc., and is widely used in various fields.

[0003] Large-scale stamping machines refer to tens of tons or even hundreds of tons of ton stamping machines. This type of stamping machine is the most widely used large-scale stamping machine. The molds installed inside this type of large-scale stamping machine are large in size and weight. At present, the traditional mold changing method is to change the mold manually with the help of a crane or forklift. When manually changing the mold with the help of a crane, the mold is directly dragged to the edge of the stamping machine workbench, and then the mold is pushed into the workbench along the slide rail with a crowbar or the like;

[0004] The above method is more suitable for small and medium-sized molds. For large molds, the operating space is small, time-consuming and labor-intensive, and even the mold change cannot be completed. In addition, the wire rope is easy to scratch the side and table of the punching machine, which may cause personal injury and other safety accidents if not handled with care.

[0005] Manual mold changing with the help of a forklift is simple and suitable for small and medium-sized molds. When replacing large molds, the support arm needs to be lengthened. As a result, safety accidents such as support arm damage and mold slippage are prone to occur during mold changing, and the investment and maintenance costs are high. Therefore, a large stamping machine mold changing device is proposed to solve the above-mentioned problems. Utility Model Content

[0006] Based on the above description, the utility model provides a die changing device for a large punching machine to solve the problem of inconvenience in changing the die of a large punching machine.

[0007] The utility model provides a technical solution to the above-mentioned technical problems as follows: a large-scale stamping machine mold changing device comprises: a supporting main frame; a front baffle plate and a rear baffle plate are respectively arranged at two ends of the supporting main frame, a transmission mechanism comprises a servo motor, a threaded screw and a movable frame, the movable frame is arranged outside the threaded screw and is threadedly connected to the threaded screw, and the movable platform is connected to the movable frame by screws.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the supporting main frame includes a main frame body, a movable groove, a guide groove, a guide bar, a threaded blind hole and a supporting leg, and one end of the main frame body is provided with the guide groove and the threaded blind hole.

[0010] Furthermore, the guide bar is provided on the bottom wall inside the guide groove, and the guide bar is a semicircular rod.

[0011] Furthermore, the movable groove is arranged on the upper surface of the main frame, the movable groove is arranged between the guide bars, and the supporting leg is arranged at the bottom end of the main frame.

[0012] Furthermore, the servo motor is arranged at one end of the rear baffle away from the supporting main frame, the threaded screw is arranged at the output shaft of the servo motor, and the threaded screw is arranged inside the movable groove.

[0013] Furthermore, the movable frame includes a movable block, a threaded hole, a movable frame body, a mounting hole and a first roller. The movable block is arranged inside the movable groove, and the threaded hole is arranged on the surface of the movable block.

[0014] Furthermore, the threaded hole is adapted to the threaded screw, the moving frame is provided at one end of the moving block, and the mounting hole is provided on the surface of the moving frame.

[0015] Furthermore, the movable frame is a C-shaped frame, and the first rollers are disposed at both ends of the movable frame. The first rollers are disposed inside the guide grooves and in contact with the guide bars.

[0016] Furthermore, the movable platform includes a platform body, a dovetail groove, a second roller, a protrusion and a threaded mounting hole, the dovetail groove is arranged on the upper surface of the platform body, the second rollers are arranged on both sides of the platform body, and the second rollers extend into the interior of the guide groove.

[0017] Furthermore, the protrusion is provided on one side of the platform body close to the mobile frame, the surface of the protrusion is provided with the threaded mounting hole, the protrusion extends to the inside of the mobile frame body, and is connected to the mobile frame body by screws.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] 1. The utility model is provided with a servo motor, a threaded screw and a moving frame and other components. Through the cooperation between the servo motor and the threaded screw, the moving frame can move along the direction of the moving groove driven by the threaded screw, thereby driving the moving platform to move together;

[0020] 2. By setting up the mobile table and the supporting main frame, the effect of limiting the movement of the mobile table is achieved, so that the mobile table can move along the direction of the moving groove with the mobile frame. During this process, the mobile table can extend from the inside of the supporting main frame and extend to the platform of the stamping machine to achieve the effect of replacing the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a large-scale stamping machine die changing device provided by an embodiment of the utility model;

[0022] Figure 2 for Figure 1 Structural cross-sectional view of

[0023] Figure 3 This is a schematic diagram of the connection structure of the supporting main frame, the front baffle and the rear baffle in the embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the supporting main frame in the embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the mobile frame in the embodiment of the utility model;

[0026] Figure 6 for Figure 5 A structural diagram from another perspective;

[0027] Figure 7 This is a schematic diagram of the structure of a mobile station in an embodiment of the utility model;

[0028] Figure 8 for Figure 7 A structural diagram from another perspective;

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Support main frame; 11. Main frame body; 12. Moving groove; 13. Guide groove; 14. Guide strip; 15. Threaded blind hole; 16. Support leg; 2. Front baffle; 3. Rear baffle; 4. Servo motor; 5. Threaded screw; 6. Moving frame; 61. Moving block; 62. Threaded hole; 63. Moving frame body; 64. Mounting hole; 65. First roller; 7. Moving platform; 71. Platform body; 72. Dovetail groove; 73. Second roller; 74. Bump; 75. Threaded mounting hole. DETAILED DESCRIPTION

[0031] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0033] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0034] See also Figure 1 , Figure 3 as well as Figure 4 , large punching machine die changing device, including:

[0035] A supporting main frame 1, the supporting main frame 1 comprises a main frame body 11, a movable groove 12, a guide groove 13, a guide bar 14, a threaded blind hole 15 and a supporting leg 16, one end of the main frame body 11 is provided with the guide groove 13 and the threaded blind hole 15, the bottom wall inside the guide groove 13 is provided with the guide bar 14, the guide bar 14 is a semicircular rod, the movable groove 12 is provided on the upper surface of the main frame body 11, the movable groove 12 is provided between the guide bars 14, and the bottom end of the main frame body 11 is provided with the supporting leg 16;

[0036] A front baffle 2 and a rear baffle 3, which are respectively arranged at two ends of the supporting main frame 1;

[0037] Based on the above, the supporting main frame 1, the front baffle 2 and the rear baffle 3 form a complete bracket, wherein the front baffle 2 and the rear baffle 3 provide support for the threaded screw 5, and the setting of the guide groove 13 and the guide strip 14 provides movement space for the first roller 65 and the second roller 73, and restricts the two rollers so that they can only move along the direction of the guide groove 13.

[0038] like Figure 1 , Figure 2 , Figure 5 as well as Figure 6 As shown, the transmission mechanism includes a servo motor 4, a threaded screw 5 and a moving frame 6, wherein:

[0039] The servo motor 4 is arranged at one end of the rear baffle 3 away from the supporting main frame 1, and the threaded screw 5 is arranged at the output shaft of the servo motor 4, and the threaded screw 5 is arranged inside the moving groove 12;

[0040] A movable frame 6, which is arranged outside the threaded screw 5 and is threadedly connected to the threaded screw 5, the movable frame 6 comprises a movable block 61, a threaded hole 62, a movable frame body 63, a mounting hole 64 and a first roller 65, the movable block 61 is arranged inside the movable groove 12, the surface of which is provided with the threaded hole 62, the threaded hole 62 is adapted to the threaded screw 5, one end of the movable block 61 is provided with the movable frame body 63, the surface of the movable frame body 63 is provided with the mounting hole 64, the movable frame body 63 is a C-shaped frame, and the first rollers 65 are arranged at both ends of the movable frame body 63, the first rollers 65 are arranged inside the guide groove 13, and contact the guide bar 14;

[0041] Based on the above, the servo motor 4 is powered on to drive the threaded screw 5 to rotate, and the threaded screw 5 drives the moving frame 6 to move along the direction of the moving groove 12 under the action of the threaded transmission. The moving block 61 arranged inside the moving frame 6 is adapted to the threaded screw 5 and plays a transmission role, and the moving frame body 63 plays a role of interconnection with the moving platform 7. The first roller 65 plays a limiting role on the one hand to prevent the moving frame 6 from rotating together with the threaded screw 5, and on the other hand to play an auxiliary movement role, so that the moving frame 6 moves more smoothly.

[0042] like Figure 1 , Figure 2 , Figure 7 as well as Figure 8 As shown, the moving platform 7 is connected to the moving frame 6 by screws;

[0043] The movable platform 7 includes a platform body 71, a dovetail groove 72, a second roller 73, a protrusion 74 and a threaded mounting hole 75. The dovetail groove 72 is provided on the upper surface of the platform body 71. The second rollers 73 are provided on both sides of the platform body 71. The second rollers 73 extend to the inside of the guide groove 13. The protrusion 74 is provided on the side of the platform body 71 close to the movable frame 6. The threaded mounting hole 75 is provided on the surface of the protrusion 74. The protrusion 74 extends to the inside of the movable frame body 63 and is connected to the movable frame body 63 by screws.

[0044] Based on the above, the movable platform 7 plays the role of installing the mold. Through the setting of the dovetail groove 72, the mold can be fixed by means of screws. The setting of the protrusion 74 and the threaded mounting hole 75 enables the movable platform 7 to be interconnected with the movable frame 6, and the movable platform 7 can move with the movable frame 6. The setting of the second roller 73 plays the role of assisting the movement of the movable platform 7, making the movement of the movable platform 7 smoother.

[0045] In actual use, the utility model is installed on the surface of the moving table 7, and the device is moved to one end of a large punching machine. After the servo motor 4 is powered on, it drives the threaded screw 5 to rotate, and drives the moving frame 6 to move under the action of the threaded transmission. At this time, the moving frame 6 pushes the moving table 7 to extend, and the extended moving table 7 moves to the workbench surface of the punching machine to achieve the effect of installing the mold;

[0046] When the mold needs to be replaced, the reverse operation is performed, that is, the electric threaded screw 5 of the servo motor 4 is reversed, so that the moving platform 7 and the mold are driven by the moving frame 6 to move to the position of the main frame 1. At this time, the mold can be extended after the mold is replaced;

[0047] In the above process, the mold is replaced outside the punching machine, so there is enough working space to avoid the problem of high difficulty in replacing large molds due to limited internal space of the punching machine.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A die changing device for a large punching machine, characterized in that: include: Supporting main frame (1); as well as A front baffle (2) and a rear baffle (3), which are respectively arranged at two ends of the supporting main frame (1); The transmission mechanism comprises a servo motor (4), a threaded screw (5) and a moving frame (6), wherein: A movable frame (6), which is arranged outside the threaded screw (5) and is threadedly connected to the threaded screw (5); The movable platform (7) is connected to the movable frame (6) via screws.

2. The mold changing device according to claim 1, characterized in that: The supporting main frame (1) comprises a main frame body (11), a movable groove (12), a guide groove (13), a guide bar (14), a threaded blind hole (15) and a supporting leg (16); one end of the main frame body (11) is provided with the guide groove (13) and the threaded blind hole (15).

3. The mold changing device according to claim 2, characterized in that: The guide bar (14) is arranged on the bottom wall inside the guide groove (13), and the guide bar (14) is a semicircular rod.

4. The mold changing device according to claim 3, characterized in that: The movable groove (12) is arranged on the upper surface of the main frame (11), the movable groove (12) is arranged between the guide bars (14), and the supporting leg (16) is arranged at the bottom end of the main frame (11).

5. The mold changing device according to claim 4, characterized in that: The servo motor (4) is arranged at one end of the rear baffle (3) away from the supporting main frame (1), and the threaded screw (5) is arranged at the output shaft of the servo motor (4), and the threaded screw (5) is arranged inside the movable groove (12).

6. The mold changing device according to claim 2, characterized in that: The movable frame (6) comprises a movable block (61), a threaded hole (62), a movable frame body (63), a mounting hole (64) and a first roller (65); the movable block (61) is arranged inside the movable groove (12), and the threaded hole (62) is arranged on its surface.

7. The mold changing device according to claim 6, characterized in that: The threaded hole (62) is matched with the threaded screw rod (5); one end of the moving block (61) is provided with the moving frame (63); and the surface of the moving frame (63) is provided with the mounting hole (64).

8. The mold changing device according to claim 7, characterized in that: The movable frame (63) is a C-shaped frame. The first rollers (65) are arranged at both ends of the movable frame (63). The first rollers (65) are arranged inside the guide groove (13) and are in contact with the guide bar (14).

9. The mold changing device according to claim 8, characterized in that: The movable platform (7) comprises a platform body (71), a dovetail groove (72), a second roller (73), a protrusion (74) and a threaded mounting hole (75); the dovetail groove (72) is arranged on the upper surface of the platform body (71); the second roller (73) is arranged on both sides of the platform body (71); and the second roller (73) extends to the inside of the guide groove (13).

10. The mold changing device according to claim 9, characterized in that: The protrusion (74) is provided on one side of the platform (71) close to the movable frame (6), the surface of the protrusion (74) is provided with the threaded mounting hole (75), and the protrusion (74) extends into the interior of the movable frame (63) and is connected to the movable frame (63) by means of screws.

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