Hinge die device for flanging machine

Abstract

The utility model discloses a hinge die device for a flanging machine, which comprises a die connecting plate, an upper pressing die and a servo hinge die, and the upper pressing die and the servo hinge die are mounted on the die connecting plate; the servo hinge die comprises a die body, a movable lug and a spring, the movable lug is rotationally installed on the die body, and the spring is installed between the movable lug and the die body and used for driving the movable lug to rotate to be flush with the bottom of the die body in a natural state. A spring is installed between the die body of the servo hinge die and the movable lug, and the spring has certain elastic force and drives the movable lug to rotate to the position flush with the bottom of the die body. Due to the fact that the bottom of the movable lug is flush with the bottom of the die body, compared with the prior art that the movable lug protrudes out of the bottom of the die body in the natural state, the protruding height of the movable lug does not need to be considered when the edge folding beam moves upwards, the edge folding beam does not need to rise by too much height, and collision friction between the movable lug protruding outwards and a workpiece is avoided. And the problem of built-up chipping knots caused by friction cannot be generated.

Description

Technical Field

[0001] The utility model belongs to the technical field of folding machines, in particular to a hinge mold device for folding machines. Background Art

[0002] As an important part of the clamping die on the folding machine, the hinge mold is an important mechanism to ensure the realization of the bending process. It is also a key device to ensure the folding accuracy of the folding machine. Its structure directly affects the processing capacity of the machine tool.

[0003] The hinge mold structure in the prior art folding machine has the problem that the folding beam needs to move upward too far to leave enough clearance to insert the workpiece. Otherwise, the servo hinge mold, on the one hand, increases the collision and friction when the movable ear of the hinge mold approaches the workpiece, and does not provide good protection for sheet materials with high surface appearance requirements such as stainless steel. On the other hand, it increases the problem of chip accumulation due to long-term friction between the mold tip and the plate, thereby shortening the service life of the mold. Utility Model Content

[0004] In order to solve the technical problem in the background technology that the folding beam needs to be moved up too far before it can be inserted into the workpiece, the purpose of the utility model is to provide a hinge mold device for a folding machine, which can solve the above problem.

[0005] The technical solution for achieving the purpose of the utility model is: a hinge mold device for a folding machine, comprising a mold connecting plate, an upper clamping mold and a servo hinge mold, wherein the upper clamping mold and the servo hinge mold are mounted on the mold connecting plate; the servo hinge mold comprises a mold body, a movable ear and a spring, wherein the movable ear is rotatably mounted on the mold body, and the spring is mounted between the movable ear and the mold body, and is used to drive the movable ear to rotate in a natural state until it is flush with the bottom of the mold body.

[0006] In the technical solution, a spring is installed on the movable ear, specifically, a spring is installed between the mold body of the servo hinge mold and the movable ear. In the natural state, the spring has a certain elastic force, which can drive the movable ear to rotate to a position flush with the bottom of the mold body. In this way, when the workpiece needs to be inserted, because the bottom of the movable ear is flush with the bottom of the mold body, compared with the existing movable ear in the prior art that protrudes from the bottom of the mold body in the natural state, the upward movement of the folding beam does not need to consider the protruding height of the movable ear, so there is no need to rise too much height, and at the same time, it also avoids the collision and friction between the protruding movable ear and the workpiece, and does not cause the problem of accumulated cutting due to friction, which greatly improves the service life of the entire mold.

[0007] Furthermore, the mold body is provided with a rotation groove, and the movable ear is installed in the rotation groove through a rotating shaft, so that the movable ear can be easily rotated when it is needed.

[0008] Furthermore, the device also includes a driving mechanism, the driving mechanism includes a driving shaft, the driving shaft is connected to the servo hinge mold, and is used to drive the rotation of the movable ear. When the workpiece has a flanging structure, after the movable ear is inserted into the flanging to complete the folding of the workpiece in other directions, the driving structure can be used to drive the movable ear to rotate, so as to facilitate separation from the flanging structure.

[0009] Further, the driving mechanism also includes a servo motor and a ball screw, the servo motor is connected through a coupling and drives the ball screw to rotate; the ball screw is connected with a nut seat and a guide seat in sequence, the drive shaft is installed in the guide seat, and the end of the drive shaft is connected to one end of the connecting rod, the other end of the connecting rod is connected to a linear guide shaft, and the linear guide shaft is connected to a large connecting rod in the mold body; the movable ear is provided with a rotating shaft installation groove, a rotating shaft is installed in the rotating shaft installation groove, and the movable ear rotates around the rotating shaft; a small connecting rod is also hingedly installed on the movable ear, the large connecting rod is connected to the small connecting rod, and the large connecting rod drives the small connecting rod and pushes the movable ear to rotate along the rotating shaft. Through the above-mentioned driving structure, the servo motor provides a stable driving force, and the rotation of the ball screw can drive the up and down movement of the drive shaft, thereby driving the large connecting rod and driving the small connecting rod and the movable ear to rotate around the rotating shaft. After rotation, it can be restored to the initial state with the help of the elastic force of the spring, that is, the bottom of the movable ear is flush with the bottom of the mold body. In order to provide a better guiding effect, a guide rod may be provided on the guide seat.

[0010] Furthermore, a linear guide rail is installed on the folding machine, and a slide seat that cooperates with the linear guide rail is provided on the driving mechanism, and the driving mechanism is slidably installed on the folding machine. When the folding machine folds a new workpiece for the first time, it is necessary to arrange a suitable upper clamping die according to the size of the workpiece, as well as the relative positions of the driving structure and the servo hinge die. At this time, when installing the driving structure, the cooperation of the slide seat and the linear guide rail can be utilized to facilitate sliding the driving structure to the corresponding position, which saves time and effort in installation.

[0011] Furthermore, a first mounting groove is provided on the mold body, and a corresponding second mounting groove is provided on the movable ear. Both ends of the spring are respectively installed in the first mounting groove and the second mounting groove, so as to limit the force of the spring and control the rotation of the movable ear and restore it to its initial state with the help of the spring.

[0012] Furthermore, the servo hinge mold includes a left servo hinge mold and a right servo hinge mold, and the left servo hinge mold and the right servo hinge mold are respectively installed at both ends of the upper pressing mold. That is, when the folding machine is working, both ends of the upper pressing mold of the folding machine are installed with servo hinge molds, which makes the folding of the workpiece more accurate and improves the folding effect of the workpiece.

[0013] By adopting the above technical solution, the utility model has the following beneficial effects:

[0014] (1) In the initial state, with the help of the spring, the bottom of the movable ear is kept flush with the bottom of the servo hinge mold body, so that the folding beam does not need to consider the protruding height of the movable ear when moving upward, so it does not need to rise too much, and the collision and friction between the protruding movable ear and the workpiece is avoided, and the problem of accumulated cutting due to friction will not occur;

[0015] (2) A first installation groove and a second installation groove for installing the spring are further provided on the mold body and the movable ear, so that the installation and movement of the spring can be effectively limited and the spring will not deviate due to elastic force during movement;

[0016] (3) In order to further better drive the rotation of the movable ear, a driving structure including a ball screw and its corresponding components is provided to effectively provide power to drive the rotation of the movable ear;

[0017] (4) A rotating shaft, a large connecting rod and a small connecting rod are arranged inside the servo hinge mold. The large connecting rod drives the small connecting rod to rotate, thereby driving the movable ear to rotate along the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the folding machine in the utility model;

[0020] Figure 2 Another schematic diagram of the overall structure of the folding machine in the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the servo hinge mold in the utility model when folding;

[0022] Figure 4 It is a structural schematic diagram of the servo hinge mold in the utility model in the initial state;

[0023] Figure 5 It is a schematic diagram of the structure of the movable ear protruding mold body in the utility model;

[0024] Figure 6 This is a schematic diagram of the driving mechanism in the utility model;

[0025] Figure 7 This is a cross-sectional view of the driving mechanism in the utility model;

[0026] Figure 8This is a schematic diagram of the driving mechanism of the utility model from another angle;

[0027] Fig. 9 This is another structural schematic diagram of the servo hinge module in the utility model;

[0028] Fig.10 for Fig. 9 Middle AA cutaway view;

[0029] Fig.11 for Fig. 9 Middle BB cutaway view.

[0030] The numbers in the accompanying drawings are: 1 mold connecting plate; 2 upper clamping mold; 3 servo hinge mold; 4 mold body; 5 movable ear; 6 spring; 7 rotating groove; 8 servo motor; 9 ball screw; 10 coupling; 11 nut seat; 12 guide seat; 13 connecting rod; 14 linear guide shaft; 15 large connecting rod; 16 rotating shaft mounting groove; 17 rotating shaft; 18 small connecting rod; 19 guide rod; 20 linear guide rail; 21 first mounting groove; 22 second mounting groove; 23 left servo hinge mold; 24 right servo hinge mold; 25 folding beam; 26 driving shaft. DETAILED DESCRIPTION

[0031] Example:

[0032] like Figure 1-Figure 11 As shown, this embodiment provides a hinge mold device for a folding machine, including a mold connecting plate 1, an upper pressing mold 2 and a servo hinge mold 3, wherein the upper pressing mold 2 and the servo hinge mold 3 are mounted on the mold connecting plate 1; the servo hinge mold 3 includes a mold body 4, a movable ear 5 and a spring 6, wherein the movable ear 5 is rotatably mounted on the mold body 4, and the spring 6 is mounted between the movable ear 5 and the mold body 4, and is used to drive the movable ear 5 to rotate to be flush with the bottom of the mold body 4. In this technical solution, a spring 6 is mounted on the movable ear 5, specifically, a spring 6 is mounted between the mold body 4 of the servo hinge mold 3 and the movable ear 5, and in a natural state, the spring 6 has a certain elastic force, which can drive the movable ear 5 to rotate to a position flush with the bottom of the mold body 4. In this way, when the workpiece needs to be inserted, since the bottom of the movable ear 5 is flush with the bottom of the mold body 4, compared with the existing movable ear 5 in the prior art that naturally protrudes from the bottom of the mold body 4, the folding beam 25 does not need to consider the protruding height of the active ear 5 when moving upward, so there is no need to rise too much height. At the same time, the collision and friction between the protruding active ear 5 and the workpiece is avoided, and the problem of chip accumulation caused by friction will not occur, thereby greatly improving the service life of the entire mold.

[0033] Preferably, the device further comprises a driving mechanism, wherein the driving mechanism comprises a driving shaft 26, wherein the driving shaft 26 is connected to the servo hinge mold 3 and is used to drive the rotation of the movable ear 5. When the workpiece has a flanging structure, after the movable ear 5 is inserted into the flanging to complete the flanging of the workpiece in other directions, the movable ear 5 can be driven to rotate by the driving structure to facilitate separation from the flanging structure.

[0034] Preferably, a linear guide rail 20 is also installed on the folding machine, and a slide seat that cooperates with the linear guide rail is provided on the driving mechanism, and the driving mechanism is slidably installed on the folding machine. When the folding machine folds a new workpiece for the first time, it is necessary to arrange a suitable upper clamping die 2 according to the size of the workpiece, as well as the relative positions of the driving structure and the servo hinge die 3. At this time, when installing the driving structure, the cooperation between the slide seat and the linear guide rail 20 can be used to facilitate sliding the driving structure to the corresponding position, which saves time and effort in installation.

[0035] Preferably, the servo hinge die 3 includes a left servo hinge die 23 and a right servo hinge die 24, and the left servo hinge die 23 and the right servo hinge die 24 are respectively installed at both ends of the upper pressing die 2. That is, when the folding machine is working, both ends of the upper pressing die 2 of the folding machine are installed with the servo hinge die 3, which makes the folding of the workpiece more accurate and improves the folding effect of the workpiece.

[0036] like Figure 6-Figure 11 As shown, the driving mechanism also includes a servo motor 8 and a ball screw 9, and the servo motor 8 is driven by a coupling 10 to connect and drive the ball screw 9 to rotate; the ball screw 9 is connected to a nut seat 11 and a guide seat 12 in sequence, the driving shaft 26 is installed in the guide seat 12, and the end of the driving shaft 26 is connected to one end of a connecting rod 13, and the other end of the connecting rod 13 is connected to a linear guide shaft 14, and the linear guide shaft 14 is connected to a large connecting rod 15 in the mold body 4; a rotating shaft mounting groove 16 is provided on the movable ear 5, a rotating shaft 17 is installed in the rotating shaft mounting groove 16, and the movable ear 5 rotates around the rotating shaft 17; a small connecting rod 18 is also hingedly installed on the movable ear 5, and the large connecting rod 15 is connected to the small connecting rod 18, and the large connecting rod 15 drives the small connecting rod 18 and pushes the movable ear 5 to rotate along the rotating shaft 17. Through the above driving structure, the servo motor 8 provides a stable driving force, and the rotation of the ball screw 9 can drive the driving shaft 26 to move up and down, thereby driving the large connecting rod 15 and driving the small connecting rod 18 and the movable ear 5 to rotate around the rotating shaft 17. After the rotation, the elastic force of the spring 6 can be used to restore the movable ear 5 to the initial state, that is, the bottom of the movable ear 5 is flush with the bottom of the mold body 4. For better guiding effect, a guide rod 19 can be provided on the guide seat 12.

[0037] Preferably, the mold body 4 has a rotation groove 7, and the movable ear 5 is installed in the rotation groove 7 through a rotating shaft 17, so that the movable ear 5 can be easily rotated when it is needed.

[0038] Preferably, a first mounting groove 21 is provided on the mold body 4, and a corresponding second mounting groove 22 is provided on the movable ear 5, and both ends of the spring 6 are respectively installed in the first mounting groove 21 and the second mounting groove 22, so as to limit the force of the spring 6, and control the rotation of the movable ear 5 and restore it to the initial state with the help of the spring 6.

[0039] Working principle: In the natural state, the movable ear 5 is flush with the bottom of the die body 4. When the pressing and bending does not require side avoidance, the pressing die moves upward to leave enough clearance for inserting the workpiece, and then the workpiece is inserted, and the upper pressing die 2 presses the workpiece downward to complete the folding process; when the pressing and bending requires side avoidance, the movable ear 5 is in a horizontal state, the folding beam 25 moves upward to a position where the workpiece can be inserted and stops, and then the workpiece is inserted, and the folding beam 25 presses the workpiece downward. After the folding process is completed, the driving mechanism is started, and the die tip on the side of the movable ear 5 is retracted into the outer side surface of the die body 4 of the servo hinge die 3, that is, it protrudes from the bottom of the die body 4, and the pressing beam begins to move upward, and the left and right servo hinge dies are moved out of the workpiece to complete the separation of the upper pressing die 2 and the workpiece.

[0040] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific 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 hinge mold device for a folding machine, characterized in that: The invention comprises a mold connecting plate (1), an upper pressing mold (2) and a servo hinge mold (3), wherein the upper pressing mold (2) and the servo hinge mold (3) are mounted on the mold connecting plate (1); the servo hinge mold (3) comprises a mold body (4), a movable ear (5) and a spring (6), wherein the movable ear (5) is rotatably mounted on the mold body (4), and the spring (6) is mounted between the movable ear (5) and the mold body (4) and is used to drive the movable ear (5) to rotate in a natural state until it is flush with the bottom of the mold body (4).

2. A hinge mold device for a folding machine according to claim 1, characterized in that: The mold body (4) is provided with a rotation groove (7), and the movable ear (5) is installed in the rotation groove (7) via a rotation shaft (17).

3. A hinge mold device for a folding machine according to claim 2, characterized in that: The device also includes a driving mechanism, which includes a driving shaft (26). The driving shaft (26) is connected to the servo hinge mold (3) and is used to drive the rotation of the movable ear (5).

4. A hinge mold device for a folding machine according to claim 3, characterized in that: The driving mechanism also includes a servo motor (8) and a ball screw (9), wherein the servo motor (8) is connected through a coupling (10) and drives the ball screw (9) to rotate; the ball screw (9) is connected in sequence to a nut seat (11) and a guide seat (12), the driving shaft (26) is installed in the guide seat (12), and the end of the driving shaft (26) is connected to one end of a connecting rod (13), and the other end of the connecting rod (13) is connected to a linear guide shaft (14), and the linear guide The shaft (14) is connected to a large connecting rod (15) in the mold body (4); a rotating shaft installation groove (16) is provided on the movable ear (5), a rotating shaft (17) is installed in the rotating shaft installation groove (16), and the movable ear (5) rotates around the rotating shaft (17); a small connecting rod (18) is also hingedly installed on the movable ear (5), the large connecting rod (15) is connected to the small connecting rod (18), and the large connecting rod (15) drives the small connecting rod (18) and pushes the movable ear (5) to rotate along the rotating shaft (17).

5. A hinge mold device for a folding machine according to claim 3, characterized in that: A linear guide rail (20) is also installed on the folding machine, and a slide seat matching the linear guide rail is arranged on the driving mechanism. The driving mechanism is slidably installed on the folding machine through the matching of the linear guide rail (20) and the slide seat.

6. A hinge mold device for a folding machine according to claim 1, characterized in that: The mold body (4) is provided with a first mounting groove (21), the movable ear (5) is provided with a corresponding second mounting groove (22), and the two ends of the spring (6) are respectively installed in the first mounting groove (21) and the second mounting groove (22).

7. A hinge mold device for a folding machine according to claim 1, characterized in that: The servo hinge mold (3) comprises a left servo hinge mold (23) and a right servo hinge mold (24), and the left servo hinge mold (23) and the right servo hinge mold (24) are respectively installed at two ends of the upper pressing mold (2).

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