A mold clamping device

Abstract

This utility model provides a mold clamping device, including a base and a lower mold clamped and mounted on its top. The base has an adjustment mechanism inside its cavity. A servo motor, worm gear, and worm can rotate a rotating rod. The rotating rod, via a fixed plate and shaft, pulls a connecting rod, which in turn causes the clamping plates to slide within a groove, bringing them closer together for easy clamping and fixing of the lower mold. A handwheel and adjusting screw adjust the movement of an extrusion plate. The extrusion plate, through its inclined edge, presses an L-shaped clamping rod, causing it to engage in a locking groove, facilitating secondary fixing of the lower mold and improving its stability. By engaging the L-shaped clamping rod in different locking grooves, the lower mold can be moved forward and backward, facilitating its positioning and preventing movement during processing, thus enhancing the device's practicality.

Description

Technical Field

[0001] This utility model relates to the field of mold clamping and installation technology, specifically a mold clamping device. Background Technology

[0002] During the processing of parts, molds need to be fixed. In the existing technology, two clamping plates are usually used to clamp and fix the mold, but the clamping effect is poor.

[0003] For example, Chinese utility model patent CN210650173U discloses a mold clamping device, including a clamping mechanism, a motion mechanism, and a locking mechanism. The clamping mechanism includes a body and a first clamping part and a second clamping part disposed opposite to each other on the body. The first clamping part is connected to the motion mechanism and can reciprocate linearly on the body under the drive of the motion mechanism. By adjusting the movement of the first clamping part, the first clamping part moves closer to the second clamping part and clamps and fixes the mold. However, it can only clamp the mold on both sides, and cannot clamp and limit the other two sides, resulting in low mold stability, easy movement during processing, which is not conducive to the processing of parts and has low practicality.

[0004] Therefore, this utility model provides a mold clamping device to enhance the multi-directional constraint capability of the mold and improve clamping stability and reliability. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mold clamping device to solve the problems mentioned in the background art. This utility model facilitates the clamping and fixing of the lower mold by adjusting the clamping plates on both sides, and by adjusting the snap-fit ​​mechanism, the L-shaped snap-fit ​​bar is snapped into the snap-fit ​​groove, which facilitates the secondary fixing of the lower mold, improves the stability of the lower mold, prevents the lower mold from moving during processing, and improves the practicality of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mold clamping device includes a base and a lower mold clamped and mounted on its top. An adjustment mechanism is provided inside the base via an internal cavity. The adjustment mechanism includes a rotating rod, two fixed discs, and a connecting rod. Sliding grooves are symmetrically formed at the top of both ends of the base. Clamping plates are slidably mounted inside the sliding grooves. The upper end of each clamping plate is T-shaped. Longitudinal grooves are formed inside both ends of the lower mold corresponding to the clamping plate positions. One end of each clamping plate is snapped into the longitudinal groove. A snapping mechanism is provided inside the top of each clamping plate. The snapping mechanism includes an L-shaped clamping rod, a pressing disc, and an adjusting screw. A limiting plate is movably mounted at the top of the sliding groove via a rotating shaft.

[0007] Furthermore, the inner cavity is located in the middle of the base, the rotating rod is rotatably mounted at the center of the inner cavity, and the two fixed discs are fixedly mounted on the top of the rotating rod.

[0008] Furthermore, the bottom end of the clamping plate is provided with an installation groove, and both ends of the connecting rod are symmetrically provided with shafts. The two ends of the connecting rod are respectively rotatably installed between the installation groove and the two fixed plates through the shafts.

[0009] Furthermore, a worm gear is fixedly installed at the bottom of the rotating rod corresponding to the bottom of the fixed plate, and a worm is meshed and rotated on one side of the worm gear. A servo motor is fixedly installed at the front end of the base, and the output shaft of the servo motor is fixedly connected to the front end of the worm.

[0010] Furthermore, the extrusion disc is fixedly disposed at one end of the adjusting screw, the adjusting screw is screwed and installed inside the top of the clamping plate, and the extrusion disc is movably disposed inside the top of the clamping plate.

[0011] Furthermore, the L-shaped locking rod is slidably positioned on the inner side of the clamping plate at the top and bottom of the extrusion plate, and a spring is fixedly installed between one end of the L-shaped locking rod and the inner wall of the clamping plate. A handwheel is fixedly installed at the other end of the adjusting screw corresponding to the outer side of the clamping plate.

[0012] Furthermore, the top and bottom walls of the longitudinal groove have symmetrical snap-fit ​​grooves inside, and the other end of the L-shaped clamp rod is inserted and installed inside the snap-fit ​​groove, with the extrusion plate in close contact with the inclined side of the L-shaped clamp rod.

[0013] Furthermore, a rubber block is fixedly provided at one end of the limiting plate, and the one end of the limiting plate is in contact with the side wall of the clamping plate through the rubber block. The limiting plate and the side wall of the clamping plate are arranged perpendicularly.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a mold clamping device that uses a servo motor, worm gear, and worm to adjust the rotation of a rotating rod. The rotating rod, through a fixed plate and shaft, pulls a connecting rod, which in turn causes the clamping plates to slide within a groove, bringing them closer together for easy clamping and fixing of the lower mold. Furthermore, the rotation of the limiting plate allows for compression and limiting of the clamping plates, improving their stability. The handwheel and adjusting screw allow for movement adjustment of the extrusion plate, which, through its inclined edge, compresses the L-shaped locking rod, causing it to engage in the locking groove. This facilitates secondary fixing of the lower mold and improves its stability. By engaging the L-shaped locking rod in different locking grooves, the lower mold can be moved forward and backward, facilitating its positioning and preventing movement during processing, thus enhancing the device's practicality. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a mold clamping device according to the present invention; Figure 2 This is a front sectional view of a mold clamping device according to the present invention; Figure 3 This utility model relates to a mold clamping device. Figure 2 Enlarged view of point A in the middle; Figure 4 This is a structural diagram of the base of a mold clamping device according to the present invention; Figure 5 This is a structural diagram of the clamping plate of a mold clamping device according to the present invention; Figure 6 This is a structural diagram of the lower mold of a mold clamping device according to the present invention; In the diagram: 1. Base; 2. Adjustment mechanism; 3. Slide groove; 4. Clamping plate; 5. Lower mold; 6. Longitudinal groove; 7. Snap-fit ​​mechanism; 8. Limiting plate; 9. L-shaped locking rod; 10. Adjusting screw; 11. Inner cavity; 12. Rotating rod; 13. Worm gear; 14. Worm; 15. Fixed plate; 16. Connecting rod; 17. Mounting groove; 18. Extrusion plate; 19. Spring; 20. Snap-fit ​​groove; 21. Servo motor. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] Please see Figures 1 to 6 This utility model provides a technical solution: a mold clamping device, including a base 1 and a lower mold 5 clamped and installed on its top. The base 1 has an adjustment mechanism 2 installed inside through an inner cavity 11. The adjustment mechanism 2 includes a rotating rod 12, two fixed plates 15 and a connecting rod 16. The top of both ends of the base 1 are symmetrically provided with sliding grooves 3. The sliding grooves 3 are limited and slidably installed with clamping plates 4 inside. The upper end of the clamping plates 4 is T-shaped. The lower mold 5 has longitudinal grooves 6 at the positions of the clamping plates 4 at both ends. One end of the clamping plate 4 is snapped into the interior of the longitudinal groove 6. The top of the clamping plate 4 is provided with a snap-fit ​​mechanism 7. The snap-fit ​​mechanism 7 includes an L-shaped clamping rod 9, a pressing plate 18 and an adjusting screw 10. The top of the sliding groove 3 is movably installed with a limiting plate 8 through a rotating shaft. By adjusting the clamping plates 4 laterally and combining the snap-fit ​​mechanism 7 with the lower mold 5, it is convenient to clamp and fix the lower mold 5, which can improve the stability and practicality of the lower mold 5.

[0018] In this embodiment, the inner cavity 11 is located in the middle of the base 1. The rotating rod 12 is rotatably mounted at the center of the inner cavity 11. Two fixed discs 15 are fixedly mounted on the top of the rotating rod 12. The bottom end of the clamping plate 4 has an installation groove 17. Both ends of the connecting rod 16 are symmetrically provided with shafts. The two ends of the connecting rod 16 are rotatably mounted between the installation groove 17 and the two fixed discs 15 via the shafts. The bottom end of the rotating rod 12 is fixedly provided with a worm gear 13 corresponding to the bottom of the fixed disc 15. A worm 14 is rotatably mounted on one side of the worm gear 13. A servo motor 21 is fixedly installed at the front end of the base 1. The output shaft of the servo motor 21 is fixedly connected to the front end of the worm gear 14. The servo motor 21 and its matching circuit facilitate the rotation of the worm gear 14. The meshing action of the worm gear 14 and the worm wheel 13 facilitates the rotation of the rotating rod 12 inside the inner cavity 11. The rotating rod 12 drives the fixed disk 15 to rotate and pulls the connecting rod 16 through the shaft. The connecting rod 16, the shaft and the mounting groove 17 drive the clamping plate 4 to slide inside the slide groove 3, which facilitates the adjustment of the clamping plates 4 to move closer or further apart, and facilitates the clamping and releasing of the lower mold 5.

[0019] In this embodiment, the extrusion disc 18 is fixedly mounted at one end of the adjusting screw 10, which is screwed onto the inside of the top of the clamping plate 4. The extrusion disc 18 is movably mounted inside the top of the clamping plate 4. The L-shaped locking rod 9 is slidably mounted on the inner side of the clamping plate 4 at the top and bottom of the extrusion disc 18. A spring 19 is fixedly mounted between one end of the L-shaped locking rod 9 and the inner wall of the clamping plate 4. A handwheel is fixedly mounted on the other end of the adjusting screw 10 corresponding to the outer side of the clamping plate 4. The top and bottom walls of the longitudinal groove 6 are symmetrically fitted with grooves 20. The other end of the L-shaped clamping rod 9 is inserted into the inside of the clamping groove 20. The extrusion plate 18 is in contact with the inclined side of the L-shaped clamping rod 9. The extrusion plate 18 can be rotated by the handwheel and the adjusting screw 10. Through the screw connection between the adjusting screw 10 and the clamping plate 4, the adjusting screw 10 drives the extrusion plate 18 to extrude the inclined side, so that the L-shaped clamping rod 9 slides to both sides and compresses the spring 19. One end of the L-shaped clamping rod 9 is inserted into the inside of the clamping groove 20, which facilitates the fixation between the clamping plate 4 and the lower mold 5 and improves the stability between the clamping plate 4 and the lower mold 5.

[0020] In this embodiment, a rubber block is fixedly provided at one end of the limiting plate 8. The limiting plate 8 is in contact with the side wall of the clamping plate 4 through the rubber block. The limiting plate 8 is perpendicular to the side wall of the clamping plate 4. By rotating and adjusting the limiting plate 8, the limiting plate 8 can squeeze the clamping plate 4 through the rubber block, which facilitates limiting the clamping plate 4 and improves the stability of the clamping plate 4.

[0021] When using this mold clamping device, the limiting plate 8 is rotated upwards and separated from the clamping plate 4. The servo motor 21 is started by controlling the matching circuit of the servo motor 21. The servo motor 21 drives the worm gear 14 to rotate inside the inner cavity 11. Through the meshing action of the worm gear 14 and the worm wheel 13, the worm wheel 13 can be driven to rotate. The worm wheel 13 drives the rotating rod 12 to rotate inside the inner cavity 11. The rotating rod 12 drives the fixed plate 15 to rotate. Under the action of the fixed plate 15 and the shaft, the connecting rod 16 is pushed. The connecting rod 16 pushes the clamping plate 4 to slide inside the slide groove 3 through the mounting groove 17 and the shaft. A through groove of the same length as the mounting groove 17 is opened between the slide groove 3 and the inner cavity 11, so that the connecting rod 16 can slide through the groove. The distance between the clamping plates 4 on both sides increases. The lower mold 5 is placed on the top of the base 1 using the hoisting equipment. The servo motor 21 is controlled to rotate in the opposite direction by the matching circuit. The servo motor 21 drives the fixed plate 15 to rotate in the opposite direction through the worm gear 14, the worm wheel 13 and the rotating rod 12. The fixed plate 15 pushes the connecting rod 16 to slide inside the slide groove 3 through the mounting groove 17 and the shaft. The shaft pulls the connecting rod 16, which in turn causes the clamping plate 4 to slide inside the slide groove 3, bringing the clamping plates 4 on both sides closer together. One end of the clamping plate 4 is then inserted into the longitudinal groove 6 to facilitate clamping and fixing the lower mold 5. The limiting plate 8 is rotated inward into the slide groove 3, and one end of the limiting plate 8 is pressed against the clamping plate 4 by a rubber block to improve the stability of the clamping plate 4. The position of the lower mold 5 is adjusted between the two clamping plates 4, and the adjusting screw 10 is rotated by the handwheel. The adjusting screw 10 moves the extrusion plate 18 inside the clamping plate 4. The extrusion plate 18 presses against the L-shaped clamping rod 9 through the inclined edge of the L-shaped clamping rod 9, causing the L-shaped clamping rod 9 to be locked inside the corresponding locking groove 20. This facilitates secondary fixing of the lower mold 5 and improves the stability of the lower mold 5. By locking the L-shaped clamping rod 9 into different locking grooves 20, the lower mold 5 can be moved and adjusted in the front and back directions to position it and prevent it from moving during processing, thus improving the practicality of the device.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mold clamping device comprising a base (1) and a lower mold (5) clamped to the top of the base, characterized in that, The base (1) is provided with an adjustment mechanism (2) through an inner cavity (11). The adjustment mechanism (2) includes a rotating rod (12), two fixed plates (15) and a connecting rod (16). The top of both ends of the base (1) is symmetrically provided with sliding grooves (3). The sliding grooves (3) are fitted with clamping plates (4) inside. The upper end of the clamping plates (4) is shaped like a "T". The lower mold (5) is provided with longitudinal grooves (6) at the positions of the clamping plates (4) at both ends. One end of the clamping plates (4) is snapped into the interior of the longitudinal grooves (6). The top of the clamping plates (4) is provided with a snapping mechanism (7). The snapping mechanism (7) includes an L-shaped clamping rod (9), an extrusion plate (18) and an adjusting screw (10). The top of the sliding grooves (3) is movably fitted with a limiting plate (8) through a rotating shaft.

2. A mold clamping apparatus according to claim 1, characterized in that: The inner cavity (11) is located in the middle of the base (1), the rotating rod (12) is rotatably installed in the center of the inner cavity (11), and the two fixed plates (15) are fixedly installed at the top of the rotating rod (12).

3. The mold clamping device according to claim 2, characterized in that: The bottom end of the clamp (4) is provided with an installation groove (17). Both ends of the connecting rod (16) are symmetrically provided with shafts. The two ends of the connecting rod (16) are respectively rotatably installed between the installation groove (17) and the two fixed plates (15) through the shafts.

4. The mold clamping device according to claim 3, characterized in that: The bottom end of the rotating rod (12) is fixedly provided with a worm gear (13) corresponding to the bottom of the fixed disk (15). A worm (14) is meshed and rotated on one side of the worm gear (13). A servo motor (21) is fixedly provided at the front end of the base (1). The output shaft of the servo motor (21) is fixedly connected to the front end of the worm (14).

5. The mold clamping device according to claim 1, characterized in that: The extrusion disc (18) is fixedly disposed at one end of the adjusting screw (10), the adjusting screw (10) is screwed and installed inside the top of the clamping plate (4), and the extrusion disc (18) is movably disposed inside the top of the clamping plate (4).

6. A mold clamping device according to claim 5, characterized in that: The L-shaped lever (9) is slidably positioned on the top and bottom of the extrusion plate (18) corresponding to the inner side of the clamping plate (4). A spring (19) is fixedly installed between one end of the L-shaped lever (9) and the inner wall of the clamping plate (4). A handwheel is fixedly installed at the other end of the adjusting screw (10) corresponding to the outer side of the clamping plate (4).

7. A mold clamping device according to claim 6, characterized in that: The top and bottom walls of the longitudinal groove (6) are symmetrically fitted with slots (20). The other end of the L-shaped clamp (9) is inserted into the slot (20). The extrusion plate (18) is in contact with the oblique side of the L-shaped clamp (9).

8. A mold clamping device according to claim 1, characterized in that: A rubber block is fixedly provided at one end of the limiting plate (8), and the end of the limiting plate (8) is in contact with the side wall of the clamping plate (4) through the rubber block. The limiting plate (8) and the side wall of the clamping plate (4) are perpendicular to each other.

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