Non-powered mold changing device

Abstract

This invention discloses a non-powered mold changing device, including a mold base, a gripping base, a positioning component, a mold fixing component, and a gripping component. The middle part of the mold base and the middle part of the gripping base are connected by the positioning component. The two ends of the mold base and the two ends of the gripping base are respectively connected by the gripping component. Mold fixing components for fixing the mold base are provided on both ends of the mold base. The gripping component cooperates with the mold fixing component. In this technology, the mold base is transferred by the gripping base through the gravity of the mold base and the gripping component without the aid of an additional clamping driver, and is installed or removed on the mold fixing component. This simplifies the structure of the gripping base and saves energy.

Description

Technical Field

[0001] This invention relates to the field of mold changing technology, and particularly to a non-powered mold changing device. Background Technology

[0002] In the parts manufacturing process, most irregular parts need to be processed using a mold base. Some parts need to be precisely fixed on the mold base first, and then the mold base and the part are moved together to the processing station for processing. In the existing technology, the movement of the mold base requires additional clamping drivers (motors, hydraulic cylinders, and pneumatic cylinders, etc.) to fix the mold base. The additional clamping drivers not only make the structure of the gripping equipment more complex, but also consume additional energy and make the control program more complex. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a non-powered mold changing device.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A non-powered mold changing device includes a mold base, a gripping base, a positioning component, a mold fixing component, and a gripping component. The middle part of the mold base and the middle part of the gripping base are connected by the positioning component. The two ends of the mold base and the two ends of the gripping base are respectively connected by the gripping component. The two ends of the mold base are provided with mold fixing components for fixing the mold base. The gripping component cooperates with the mold fixing component.

[0006] The gripping assembly includes a locking plate, a locking pin, a locking seat, a return spring, a first rotating shaft, a second rotating shaft, a third rotating shaft, a roller, a rotating rod, and an inclined block. The locking plate is fixedly mounted on both ends of the mold base. The locking plate has a locking hole that mates with the end of the locking pin. The locking seat is fixedly mounted on the gripping base, and has a sliding hole that mates with the locking pin. The return spring is disposed within the sliding hole, with one end contacting the bottom of the sliding hole, and the other end of the return spring contacting the locking pin. The ends of the locking pins are in contact, and the two sets of locking pins are arranged between the two sets of locking plates with the two sets of locking pins extending in opposite directions. The locking seat is provided with a fixing ear. The upper end of the rotating rod is arranged on the fixing ear through the first rotating shaft. The middle part of the rotating rod is arranged on the locking pin through the second rotating shaft. The lower end of the rotating rod is fixedly arranged with the third rotating shaft. The roller is rotatably arranged on the third rotating shaft and cooperates with the inclined surface on the inclined block. The inclined block is fixedly arranged on the mold fixing assembly.

[0007] Furthermore, the mold fixing assembly includes a mounting base, a limiting platform, a locking cylinder, and a locking plate. The limiting platform is fixedly mounted on the mounting base and cooperates with the upper surface of the mold base. The locking cylinder is fixedly mounted on the mounting base. The locking plate is fixedly mounted on the output shaft of the locking cylinder and cooperates with the lower surface of the mold base. The inclined block is fixedly mounted on the mounting base.

[0008] Furthermore, the positioning component includes a central positioning post and end positioning posts. The central positioning post is fixedly disposed on the center of the lower surface of the mold base, and the end positioning posts are fixedly disposed on both ends of the lower surface of the mold base. The center of the gripping seat is provided with a central positioning hole that cooperates with the central positioning post, and both ends of the gripping seat are provided with end positioning holes that cooperate with the end positioning posts.

[0009] Furthermore, two sets of central adjustment components are fixedly installed on the inner wall of the central positioning hole. The two sets of central adjustment components are located on both sides of the central positioning post and cooperate with the central positioning post. The straight line direction of the two sets of central adjustment components is perpendicular to the length direction of the mold base.

[0010] Furthermore, each of the end positioning holes is fixedly provided with a set of end adjustment components that cooperate with the end positioning posts. The two end positioning posts are arranged between the two end adjustment components, and the straight line direction of the two sets of end adjustment components is parallel to the length direction of the mold base.

[0011] Furthermore, both the middle adjustment component and the end adjustment component include a top block, a fixed block, an ejection spring, a guide rod, and a limiting rod. One end of the guide rod and one end of the limiting rod are fixedly connected to the fixed block. The top block is provided with a sliding hole that mates with the other end of the guide rod. The top block is provided with a limiting hole that mates with the anti-detachment block at the end of the limiting rod. The ejection spring is sleeved on the limiting rod and its two ends are in contact with the top block and the fixed block, respectively.

[0012] Furthermore, the end of the locking pin is spherical, and the locking hole is spherical.

[0013] Furthermore, the locking cylinder is a rotary cylinder or a rotary hydraulic cylinder.

[0014] Furthermore, a welding torch is provided on the other end of the gripping seat.

[0015] The beneficial effects of this invention are:

[0016] 1) In this technology, the mold base is transferred by the gravity of the mold base in conjunction with the gripping component without the aid of an additional clamping driver, and is installed or removed on the mold fixing component. This simplifies the structure of the gripping base and saves energy.

[0017] 2) In this technology, with the cooperation of the return spring, the first rotating shaft, the second rotating shaft, the third rotating shaft, the roller, the rotating rod and the inclined block, the locking plate and the locking pin can be effectively inserted and fixed or separated and loosened, so that the mold seat and the gripping seat can be fixed or separated.

[0018] 3) In this technology, the positioning of the front and rear sides of the mold base can be restricted by two sets of central adjustment components cooperating with the central positioning column, and the positioning of the left and right sides of the mold base can be restricted by two sets of end adjustment components cooperating with the two end positioning columns respectively. Attached Figure Description

[0019] Figure 1 This is a diagram showing the connection structure between the mold base, gripper base, positioning assembly, mold fixing assembly, and gripper assembly.

[0020] Figure 2 This is a structural diagram showing the connection between the mold base, gripper base, positioning component, and gripper component.

[0021] Figure 3 This is a diagram showing the connection structure between the mold base and the mold fixing assembly;

[0022] Figure 4 The structure when the roller and the inclined block are in contact. Figure 1 ;

[0023] Figure 5 The structure when the roller and the inclined block are in contact. Figure 2 ;

[0024] Figure 6 The connection structure between the locking plate, locking pin and locking seat Figure 1 ;

[0025] Figure 7 The connection structure between the locking plate, locking pin and locking seat Figure 2 ;

[0026] In the diagram, 1-mold base, 2-grip seat, 3-locking plate, 4-locking pin, 5-locking seat, 6-reset spring, 7-first rotating shaft, 8-second rotating shaft, 9-third rotating shaft, 10-roller, 11-rotating rod, 12-sloping block, 13-locking hole, 14-sliding hole, 15-fixed ear, 16-inclined surface, 17-mounting seat, 18-limiting platform, 19-locking cylinder, 20-locking platform, 21-middle positioning post, 22-end positioning post, 23-middle positioning hole, 24-end positioning hole, 25-top block, 26-fixing block, 27-ejection spring, 28-guide rod, 29-limiting rod, 30-anti-detachment block, 31-limiting hole, 32-welding gun. Detailed Implementation

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] See Figures 1-7 The present invention provides a technical solution:

[0029] A non-powered mold changing device includes a mold base 1, a gripper base 2, a positioning component, a mold fixing component, and a gripping component. The middle part of the mold base 1 and the middle part of the gripper base 2 are connected by the positioning component. The two ends of the mold base 1 and the two ends of the gripper base 2 are respectively connected by the gripping component. Mold fixing components are provided on both ends of the mold base 1 for fixing the mold base 1. The gripping component cooperates with the mold fixing component. A welding torch 32 is provided on the other end of the gripper base 2. The mold base 1 is used to install the part to be processed. The gripper base 2 is connected to the robot output unit in the prior art. The robot can grasp the mold base 1 and move it through the gripper base 2. The positioning component is used to achieve precise positioning between the mold base 1 and the gripper base 2. The mold fixing component is used to fix the mold base 1. During processing, the mold base 1 is fixed on the mold base 2. The gripping component is used to fix the mold base 1 and the gripper base 2 together, so that the gripper base 2 can move the mold base 1. The welding torch 32 and the gripper 2 can be rotated and replaced. After the mold base 1 is fixed, the parts can be welded by the welding torch 32.

[0030] The gripping assembly includes a locking plate 3, a locking pin 4, a locking seat 5, a return spring 6, a first rotating shaft 7, a second rotating shaft 8, a third rotating shaft 9, a roller 10, a rotating rod 11, and an inclined block 12. Locking plates 3 are fixedly installed on both ends of the mold base 1. The locking plates 3 have locking holes 13 that mate with the ends of the locking pins 4. The locking seat 5 is fixedly installed on the gripping base 2. The locking seat 5 has a sliding hole 14 that mates with the locking pins 4. The return spring 6 is installed in the sliding hole 14, with one end contacting the bottom of the sliding hole 14. The other end of the return spring 6... One end contacts the end of the locking pin 4. Two sets of locking pins 4 are set between two sets of locking plates 3 and the two sets of locking pins 4 extend in opposite directions. The locking seat 5 is provided with a fixing ear 15. The upper end of the rotating rod 11 is set on the fixing ear 15 through the first rotating shaft 7. The middle part of the rotating rod 11 is set on the locking pin 4 through the second rotating shaft 8. The lower end of the rotating rod 11 is fixedly set with a third rotating shaft 9. The roller 10 is rotatably set on the third rotating shaft 9 and cooperates with the inclined surface 16 on the inclined block 12. The inclined block 12 is fixedly set on the mold fixing assembly. The end of the locking pin 4 is spherical, and the locking hole 13 is a spherical hole. When the end of the locking pin 4 is pushed into the locking hole 13 on the locking plate 3 under the action of the return spring 6, the locking pin 4 is fixed on the gripping seat 2 through the locking seat 5. At this time, the mold seat 1 can be fixed on the gripping seat 2. Under the action of the inclined surface 16, the roller 10 drives the rotating rod 11 to rotate around the first rotating shaft 7 via the third rotating shaft 9. The rotating rod 11 drives the locking pin 4 to compress the return spring 6 via the second rotating shaft 8. At this time, the locking pin 4 can be pulled out from the locking hole 13, and the mold seat 1 and the gripping seat 2 can be separated. The roller 10 rolling on the inclined surface 16 can reduce friction. The middle part of the rotating rod 11 is provided with a long sliding hole that cooperates with the second rotating shaft 8.

[0031] In some embodiments, the mold fixing assembly includes a mounting base 17, a limiting platform 18, a locking cylinder 19, and a locking platform 20. The limiting platform 18 is fixedly mounted on the mounting base 17 and engages with the upper surface of the mold base 1. The locking cylinder 19 is fixedly mounted on the mounting base 17. The locking platform 20 is fixedly mounted on the output shaft of the locking cylinder 19 and engages with the lower surface of the mold base 1. The inclined block 12 is fixedly mounted on the mounting base 17. The locking cylinder 19 is a rotary cylinder or a rotary hydraulic cylinder in the prior art. The mounting base 17 is fixed stationary on the production line. The limiting platform 18 limits the upper surface of the mold base 1. The locking cylinder 19 contacts the lower surface of the mold base 1 through the locking platform 20 and fixes the mold base 1 on the limiting platform 18.

[0032] In some embodiments, the positioning assembly includes a central positioning post 21 and end positioning posts 22. The central positioning post 21 is fixedly disposed on the center of the lower surface of the mold base 1, and end positioning posts 22 are fixedly disposed on both ends of the lower surface of the mold base 1. A central positioning hole 23 that mates with the central positioning post 21 is provided in the center of the gripper seat 2, and end positioning holes 24 that mate with the end positioning posts 22 are provided on both ends of the gripper seat 2. Specifically, one central positioning post 21 and two end positioning posts 22 are disposed on the lower surface of the mold base 1, and the central positioning post 21 and the two end positioning posts 22 are on the same straight line. The two end positioning posts 22 are symmetrically disposed on both sides of the central positioning post 21. Both the central positioning post 21 and the end positioning posts 22 are square positioning posts. The central positioning hole 23 mates with the central positioning post 21, and the end positioning hole 24 mates with the end positioning post 22, thereby achieving precise positioning between the mold base 1 and the gripper seat 2.

[0033] In some embodiments, two sets of central adjustment components are fixedly disposed on the inner wall of the central positioning hole 23. These two sets of central adjustment components are located on both sides of the central positioning post 21 and cooperate with it. The straight direction of the two sets of central adjustment components is perpendicular to the length direction of the mold base 1. A set of end adjustment components that cooperate with the end positioning posts 22 are fixedly disposed on the inner wall of each end positioning hole 24. The two end positioning posts 22 are located between the two end adjustment components. The straight direction of the two sets of end adjustment components is parallel to the length direction of the mold base 1. The two sets of central adjustment components cooperating with the central positioning post 21 can restrict the positioning of the front and rear sides of the mold base 1. The two sets of end adjustment components cooperating with the two end positioning posts 22 respectively can restrict the positioning of the left and right sides of the mold base 1.

[0034] In some embodiments, both the middle adjustment component and the end adjustment component include a top block 25, a fixing block 26, an ejection spring 27, a guide rod 28, and a limiting rod 29. One end of the guide rod 28 and one end of the limiting rod 29 are fixedly connected to the fixing block 26. The top block 25 is provided with a sliding hole 14 that mates with the other end of the guide rod 28. The top block 25 is provided with a limiting hole 31 that mates with the anti-detachment block 30 at the end of the limiting rod 29. The ejection spring 27 is sleeved on the limiting rod 29, and its two ends contact the top block 25 and the fixing block 26, respectively. A chamfer is provided on the top block 25 so that the middle positioning post 21 and the end positioning post 22 can be inserted more effectively. The ejector spring 27 ensures that the ejector block 25 remains in the ejected state. The fixing block 26 is used to install the guide rod 28 and the limiting rod 29. The ejector block 25, with the guide rod 28, can only move along the direction of the guide rod 28 and cannot rotate. The limiting rod 29 prevents the ejector block 25 from detaching. Both the guide rod 28 and the limiting rod 29 are circular rods and are arranged in parallel. The anti-detachment block 30 slides in the limiting hole 31.

[0035] In this technology, the installation process involves mounting the mold base 1 onto the mold fixing assembly via the gripping seat 2, while the disassembly process involves removing the mold base 1 from the mold fixing assembly via the gripping seat 2.

[0036] The installation process is as follows: After the mold base 1 is gripped by the gripping seat 2, the gripping seat 2 and the mold base 1 move upward together from between the two mounting seats 17. When the gripping seat 2 moves upward, the roller 10 contacts the inclined surface 16 on the inclined block 12. As the gripping seat 2 continues to move upward, the roller 10 drives the rotating rod 11 to rotate around the first rotating shaft 7 through the third rotating shaft 9. The rotating rod 11 drives the locking pin 4 to compress the return spring 6 through the second rotating shaft 8. As the gripping seat 2 moves upward, the locking pin 4 is pulled out from the locking hole 13. When the upper surface of the mold base 1 contacts the limiting platform 18, the locking pin 4 is completely pulled out from the locking hole 13. At this time, the locking platform 20 is driven by the locking cylinder 19 to act on the lower surface of the mold base 1. The mold base 1 is completely fixed on the mold fixing assembly. At this time, the gripping seat 2 moves downward and can separate from the mold base 1.

[0037] The disassembly process is as follows: The gripper 2 moves upward between the two mounting seats 17. As the gripper 2 moves upward, the roller 10 contacts the inclined surface 16 on the inclined block 12. As the gripper 2 continues to move upward, the roller 10 drives the rotating rod 11 to rotate around the first rotating shaft 7 via the third rotating shaft 9. The rotating rod 11 drives the locking pin 4 to compress the return spring 6 via the second rotating shaft 8. During the upward movement, the middle positioning pin 21 and the end positioning pin 22 are gradually inserted into the middle positioning hole 23 and the end positioning hole 24, respectively. At the same time, the middle adjustment part... The parts and end adjustment components are precisely positioned. When the gripper 2 contacts the mold base 1, the locking pin 4 engages with the locking hole 13. Then, the locking cylinder 19 is controlled to drive the locking platform 20 to open. Under the action of gravity, the mold base 1 falls onto the gripper 2. Then, the gripper 2 and the mold base 1 move downwards at the same time. The roller 10 also gradually disengages from the inclined block 12. With the action of the return spring 6, the locking pin 4 slowly inserts into the locking hole 13, thereby fixing the mold base 1 on the gripper 2. The gripper 2 drives the mold base 1 to move together.

[0038] In the description of this invention, it should be understood that the terms "bottom", "one end", "top", "middle", "other end", "upper", "side", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "hinging," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two sets of components or the interaction between two sets of components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A non-powered mold changing device, characterized in that: The device includes a mold base (1), a gripping base (2), a positioning component, a mold fixing component, and a gripping component. The middle part of the mold base (1) and the middle part of the gripping base (2) are connected by the positioning component. The two ends of the mold base (1) and the two ends of the gripping base (2) are respectively connected by the gripping component. The two ends of the mold base (1) are provided with the mold fixing component for fixing the mold base (1). The gripping component is connected to the mold fixing component. The gripping assembly includes a locking plate (3), a locking pin (4), a locking seat (5), a return spring (6), a first rotating shaft (7), a second rotating shaft (8), a third rotating shaft (9), a roller (10), a rotating rod (11), and an inclined block (12). The locking plate (3) is fixedly mounted on both ends of the mold base (1). The locking plate (3) has a locking hole (13) that mates with the end of the locking pin (4). The locking seat (5) is fixedly mounted on the gripping base (2). The locking seat (5) has a sliding hole (14) that mates with the locking pin (4). The return spring (6) is located within the sliding hole (14), with one end contacting the bottom of the sliding hole (14). The other end of the return spring (6)... One end contacts the end of the locking pin (4), two sets of locking pins (4) are arranged between two sets of locking plates (3) and the two sets of locking pins (4) extend in opposite directions. The locking seat (5) is provided with a fixing ear (15). The upper end of the rotating rod (11) is arranged on the fixing ear (15) through the first rotating shaft (7). The middle part of the rotating rod (11) is arranged on the locking pin (4) through the second rotating shaft (8). The lower end of the rotating rod (11) is fixedly provided with the third rotating shaft (9). The roller (10) is rotatably arranged on the third rotating shaft (9) and cooperates with the inclined surface (16) on the inclined block (12). The inclined block (12) is fixedly arranged on the mold fixing assembly.

2. The non-powered mold changing device according to claim 1, characterized in that: The mold fixing assembly includes a mounting base (17), a limiting platform (18), a locking cylinder (19), and a locking platform (20). The limiting platform (18) is fixedly mounted on the mounting base (17) and cooperates with the upper surface of the mold base (1). The locking cylinder (19) is fixedly mounted on the mounting base (17). The locking platform (20) is fixedly mounted on the output shaft of the locking cylinder (19) and cooperates with the lower surface of the mold base (1). The inclined block (12) is fixedly mounted on the mounting base (17).

3. The non-powered mold changing device according to claim 1 or 2, characterized in that: The positioning assembly includes a central positioning post (21) and an end positioning post (22). The central positioning post (21) is fixedly disposed on the middle of the lower surface of the mold base (1). The end positioning posts (22) are fixedly disposed on both ends of the lower surface of the mold base (1). The gripping seat (2) has a central positioning hole (23) that cooperates with the central positioning post (21) in the middle. The gripping seat (2) has end positioning holes (24) that cooperate with the end positioning posts (22) on both ends.

4. The non-powered mold changing device according to claim 3, characterized in that: Two sets of central adjustment components are fixedly installed on the inner wall of the central positioning hole (23). The two sets of central adjustment components are located on both sides of the central positioning post (21) and cooperate with the central positioning post (21). The straight line direction of the two sets of central adjustment components is perpendicular to the length direction of the mold base (1).

5. The non-powered mold changing device according to claim 4, characterized in that: Each of the end positioning holes (24) has a set of end adjustment components that cooperate with the end positioning posts (22) fixedly installed on the inner wall. The two end positioning posts (22) are arranged between the two end adjustment components, and the straight line direction of the two sets of end adjustment components is parallel to the length direction of the mold base (1).

6. The non-powered mold changing device according to claim 5, characterized in that: Both the middle adjustment component and the end adjustment component include a top block (25), a fixing block (26), an ejection spring (27), a guide rod (28), and a limiting rod (29). One end of the guide rod (28) and one end of the limiting rod (29) are fixedly connected to the fixing block (26). The top block (25) is provided with a guide hole (33) that cooperates with the other end of the guide rod (28). The top block (25) is provided with a limiting hole (31) that cooperates with the anti-detachment block (30) at the end of the limiting rod (29). The ejection spring (27) is sleeved on the limiting rod (29) and its two ends are in contact with the top block (25) and the fixing block (26), respectively.

7. The non-powered mold changing device according to claim 1 or 2, characterized in that: The locking pin (4) has a spherical end and the locking hole (13) has a spherical hole.

8. The non-powered mold changing device according to claim 2, characterized in that: The locking cylinder (19) is a rotary cylinder or a rotary hydraulic cylinder.

9. The non-powered mold changing device according to claim 1 or 2, characterized in that: A welding torch (32) is provided on the other end of the gripper (2).

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