A two-way positioning device for a die casting mold

Abstract

The utility model discloses a kind of two-way positioning device for die casting die belongs to die casting die technical field, the device installation platform, installation groove is set in the top of installation platform, the inside of installation platform is provided with driving mechanism and positioning mechanism, driving mechanism is located below positioning mechanism, driving mechanism includes driving rod, the lower end of driving rod is rotatably connected with the inner bottom wall of installation platform by bearing, worm wheel is fixedly sleeved on the outside of driving rod, the upper end of driving rod is fixedly connected with driving disc, positioning mechanism includes baffle, the periphery surface of baffle is fixedly connected with the periphery inner wall of installation platform respectively, stroke groove is arranged in annular array distribution on the upper end of baffle.The utility model solves the problem that traditional mould positioning relies on manual, low precision, poor efficiency, realizes the automation and high precision of positioning process by mechanical transmission and sensor, reduces manual labor intensity, substantially improves the efficiency of early preparation of die casting production and the effect of subsequent die casting precision.

Description

Technical Field

[0001] This utility model relates to the field of die casting mold technology, and in particular to a bidirectional positioning device for die casting molds. Background Technology

[0002] Die-casting mold positioning technology is a core element in ensuring the precision of die-cast parts and improving production efficiency, directly determining the stability of die-casting production and the product qualification rate. Currently, the die-casting industry still widely relies on the traditional method of using positioning keys in conjunction with manual adjustment to achieve mold positioning. Although this method is simple in structure and low in cost, and was once widely applicable in scenarios with conventional precision requirements, its inherent defects have become increasingly prominent as the requirements for dimensional accuracy and geometric tolerances of die-cast parts in high-end manufacturing fields continue to become more stringent. Traditional positioning methods are greatly affected by mechanical backlash and human operation errors, making it difficult to break through the bottleneck of positioning accuracy. Moreover, the manual adjustment process is cumbersome and time-consuming, significantly restricting the improvement of production cycle time and failing to meet the high precision and high efficiency requirements of modern die-casting production lines.

[0003] Currently, most methods involve machining matching keyways on the mold and die-casting machine template, and using mechanical keys for positioning. Specifically, matching keyways are machined on the mounting surface of the die-casting mold and the corresponding positions of the moving and stationary templates of the die-casting machine. Initial positioning of the mold and template is achieved by embedding standard-sized mechanical keys. However, during installation, the alignment of the mold and keyways needs to be manually and repeatedly calibrated. The whole process is time-consuming, resulting in a large amount of manual labor and reduced production efficiency. Utility Model Content

[0004] The purpose of this application is to provide a bidirectional positioning device for die casting molds, which aims to improve the problem of time-consuming and cumbersome manual operation and reduced production efficiency during the installation and positioning of die casting molds in the prior art.

[0005] The bidirectional positioning device for die-casting molds provided in this application adopts the following technical solution: A bidirectional positioning device for die-casting molds includes: a mounting platform, an mounting groove being provided above the mounting platform, and a driving mechanism and a positioning mechanism being provided inside the mounting platform, with the driving mechanism located below the positioning mechanism; The driving mechanism includes a driving rod, the lower end of which is rotatably connected to the inner bottom wall of the mounting platform via a bearing, a worm gear is fixedly sleeved on the outside of the driving rod, and a driving disk is fixedly connected to the upper end of the driving rod. The positioning mechanism includes a partition, the four sides of which are fixedly connected to the inner walls of the mounting platform, and the upper end of the partition has stroke grooves arranged in a circular array.

[0006] Preferably, the upper end of the drive disk has inclined grooves arranged in a ring array, a servo motor is fixedly installed on the inner bottom wall of the mounting platform, and a worm gear is fixedly installed on the output shaft of the servo motor through a coupling.

[0007] By adopting the above technical solution, the effect of reducing speed and increasing torque was achieved.

[0008] Preferably, the outer surface of the worm gear meshes with the tooth surface of the worm wheel, and the controller body is fixedly mounted on the upper end of the mounting platform.

[0009] By adopting the above technical solution, the effect of meshing transmission was achieved.

[0010] Preferably, a travel block is slidably connected to the inner wall of the travel groove, a guide rod is slidably sleeved on the inner wall of the travel block, the two ends of the guide rod are respectively fixedly connected to the inner walls of the two sides of the travel groove, and a sliding rod is fixedly connected to the lower end of the travel block.

[0011] By adopting the above technical solution, the guiding movement effect was achieved.

[0012] Preferably, the lower end of the slide rod is slidably connected to the inner wall of the inclined groove, wherein a first pressure sensor is fixedly installed on one side of the two stroke blocks in a symmetrical arrangement, and a first positioning rod is fixedly connected to the other side of the first pressure sensor.

[0013] By adopting the above technical solution, the effect of synchronous driving was achieved.

[0014] Preferably, one end of the first positioning rod passes through and extends into the interior of the mounting groove, and the upper ends of the other two stroke blocks are fixedly connected to symmetrically distributed mounting plates, and servo electric cylinders are fixedly mounted on the upper ends of the mounting plates.

[0015] By adopting the above technical solution, the effect of driver installation can be achieved.

[0016] Preferably, a second pressure sensor is fixedly installed at one end of the piston rod of the servo electric cylinder, and a second positioning rod is fixedly connected to one end of the second pressure sensor. One end of the second positioning rod passes through and extends into the interior of the mounting groove.

[0017] By adopting the above technical solution, the effect of pressure monitoring can be achieved.

[0018] Preferably, a conical positioning block is fixedly connected to the inner bottom wall of the mounting groove, and a mold body is movably inserted into the outside of the conical positioning block. The mold body has first positioning grooves that are symmetrically distributed on both sides, and second positioning grooves that are symmetrically distributed on the front and back sides.

[0019] By adopting the above technical solution, the initial positioning effect can be achieved.

[0020] In summary, this application includes at least one of the following beneficial technical effects: In this invention, a conical positioning block is used to provide initial guidance, ensuring rapid initial centering of the mold. The servo motor, worm gear transmission, and drive disk of the drive mechanism work together to achieve automatic synchronous movement of the first positioning rod. The first pressure sensor precisely controls the insertion pressure, while the servo electric cylinder and the second pressure sensor of the positioning mechanism complete the automatic insertion and pressure monitoring of the second positioning rod. This solves the problems of traditional mold positioning relying on manual labor, low accuracy, and poor efficiency. It achieves automation and high precision in the positioning process through mechanical transmission and sensors, while reducing the intensity of manual labor and significantly improving the efficiency of pre-production preparation and the accuracy of subsequent die-cast parts. Attached Figure Description

[0021] Figure 1 This is a perspective view of a bidirectional positioning device for die-casting molds proposed in this utility model; Figure 2 This is an exploded view of the mold body of a bidirectional positioning device for die-casting molds proposed in this utility model. Figure 3 This is a schematic diagram of the mounting platform for a bidirectional positioning device for die-casting molds proposed in this utility model; Figure 4 An exploded view of the partition structure of a bidirectional positioning device for die-casting molds proposed in this utility model; Figure 5 This is an exploded view of the drive disc structure of a bidirectional positioning device for die-casting molds proposed in this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Mounting platform; 11. Mounting groove; 12. Conical positioning block; 13. Mold body; 14. First positioning groove; 15. Second positioning groove; 2. Drive rod; 21. Worm gear; 22. Drive disc; 23. Inclined groove; 24. Servo motor; 25. Worm gear; 26. Controller body; 3. Partition plate; 31. Stroke groove; 32. Stroke block; 33. Guide rod; 34. Slide rod; 35. First pressure sensor; 36. First positioning rod; 37. Mounting plate; 38. Servo electric cylinder; 39. Second pressure sensor; 310. Second positioning rod. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0024] A bidirectional positioning device for die casting molds includes a mounting platform 1, which serves as the basic load-bearing component of the device, providing a stable installation and working space for the drive mechanism, positioning mechanism, and mold body 13, and ensuring the structural stability when the components work together.

[0025] The mounting platform 1 has a mounting slot 11 on its upper part to accommodate the mold body 13 and provide an insertion space for the positioning rod. The mounting platform 1 is equipped with a drive mechanism and a positioning mechanism. The drive mechanism is located below the positioning mechanism and provides power to the positioning mechanism to realize the automatic movement of the positioning rod.

[0026] The drive mechanism includes a drive rod 2. The lower end of the drive rod 2 is rotatably connected to the inner bottom wall of the mounting platform 1 through a bearing, which can rotate stably and transmit power. A worm gear 21 is fixedly sleeved on the outside of the drive rod 2, which is used to mesh with the worm 25 to realize power transmission and speed reduction. A drive disk 22 is fixedly connected to the upper end of the drive rod 2. The inclined groove 23 on its surface is used to squeeze the slide bar 34, converting the rotational motion of the drive rod 2 into the linear motion of the slide bar 34.

[0027] The upper end of the drive plate 22 is provided with inclined grooves 23 arranged in a ring array to provide a pressing path for the movement of the slide bar 34. The inner bottom wall of the mounting platform 1 is fixedly installed with a servo motor 24, which serves as the power source of the drive mechanism and provides stable and precisely controllable rotational power. The output shaft of the servo motor 24 is fixedly installed with a worm gear 25 through a coupling. The outer surface of the worm gear 25 meshes with the tooth surface of the worm wheel 21. The power steering and speed reduction are realized through worm gear transmission, ensuring the smoothness and controllability of the rotation of the drive plate 22. The upper end of the mounting platform 1 is fixedly installed with a controller body 26, which is used to uniformly control the operation of the servo motor 24, the servo electric cylinder 38 and the pressure sensor to realize the automated positioning process.

[0028] The positioning mechanism includes a partition 3, the four sides of which are fixedly connected to the inner walls of the mounting platform 1, providing installation support for components such as the stroke block 32 and the guide rod 33. The upper end of the partition 3 is provided with stroke grooves 31 arranged in a ring array to provide guiding space for the sliding of the stroke block 32.

[0029] The inner wall of the travel groove 31 is slidably connected to a travel block 32, which can slide smoothly along the travel groove 31. The inner wall of the travel block 32 is slidably fitted with a guide rod 33. The two ends of the guide rod 33 are respectively fixedly connected to the inner walls of the two sides of the travel groove 31, providing precise guidance for the sliding of the travel block 32 and ensuring that its movement trajectory is straight. The lower end of the travel block 32 is fixedly connected to a slide rod 34. The lower end of the slide rod 34 is slidably connected to the inner wall of the inclined groove 23, and the movement of the travel block 32 is achieved by the extrusion of the inclined groove 23.

[0030] Two stroke blocks 32 are fixedly mounted on opposite sides with symmetrically distributed first pressure sensors 35, which are used to monitor the pressure when the first positioning rod 36 is inserted into the first positioning groove 14 of the mold body 13, to ensure that it is inserted in place and to avoid excessive squeezing and damage to the mold. The other side of the first pressure sensor 35 is fixedly connected to the first positioning rod 36, one end of which passes through and extends into the interior of the mounting groove 11, and is used to insert into the first positioning groove 14 of the mold body 13 to achieve positioning in the length direction of the mold.

[0031] The upper ends of the other two stroke blocks 32 are fixedly connected to symmetrically distributed mounting plates 37, which provide a mounting base for the servo electric cylinder 38. The upper end of the mounting plate 37 is fixedly mounted with the servo electric cylinder 38, which provides power for the movement of the second positioning rod 310. One end of the piston rod of the servo electric cylinder 38 is fixedly mounted with a second pressure sensor 39, which is used to monitor the pressure when the second positioning rod 310 is inserted into the second positioning groove 15 of the mold body 13, so as to ensure the insertion accuracy and mold safety. One end of the second pressure sensor 39 is fixedly connected to the second positioning rod 310. One end of the second positioning rod 310 passes through and extends into the interior of the mounting groove 11, and is used to insert into the second positioning groove 15 of the mold body 13 to achieve positioning in the width direction of the mold.

[0032] A conical positioning block 12 is fixedly connected to the inner bottom wall of the mounting groove 11. The mold body 13 is movably inserted into the outside of the conical positioning block 12. The guiding effect of the conical structure enables the mold body 13 to be quickly and initially centered, simplifying the initial installation process. The mold body 13 has symmetrically distributed first positioning grooves 14 on both sides, which are used to cooperate with the first positioning rod 36 to achieve positioning in the length direction. The mold body 13 has symmetrically distributed second positioning grooves 15 on the front and back, which are used to cooperate with the second positioning rod 310 to achieve positioning in the width direction.

[0033] Working principle: Step 1, align the mold body 13 with the conical positioning block 12 in the mounting groove 11. Using the guiding effect of the conical positioning block 12, quickly place the mold body 13 into the mounting groove 11 to complete the initial centering and lay the foundation for subsequent precise positioning. Start the servo motor 24 through the controller body 26. The output shaft of the servo motor 24 drives the worm 25 to rotate. The worm 25 meshes with the tooth surface of the worm wheel 21, driving the worm wheel 21 and the drive rod 2 to rotate, which in turn drives the drive disk 22 to rotate. When the drive disk 22 rotates, the inclined groove 23 on its surface squeezes the slide rod 34. With the cooperation of the guide rod 33, the slide rod 34 pushes the stroke block 32 to slide along the stroke groove 31. The two stroke blocks 32 synchronously drive the first positioning rod 36 to move relative to each other and gradually insert into the first positioning groove 14 in the length direction of the mold body 13. When the first pressure sensor 35 senses that the insertion pressure reaches the preset value, the controller body 26 controls the servo motor 24 to stop working. At this time, the first positioning rod 36 has been stably inserted into the first positioning groove 14, completing the positioning in the length direction of the mold. Step 2: After the first direction positioning is completed, the servo electric cylinder 38 is started by the controller body 26. The piston rod of the servo electric cylinder 38 extends and drives the second positioning rod 310 to move towards the mold body 13 and insert into the second positioning groove 15 in the width direction. During the insertion of the second positioning rod 310, the second pressure sensor 39 monitors the insertion pressure in real time. When the pressure reaches the preset value, the controller body 26 controls the servo electric cylinder 38 to stop working, and the second positioning rod 310 is stably inserted into the second positioning groove 15, completing the positioning of the mold in the width direction. Step 3: At this point, the mold body 13 is firmly positioned in both the front-back and left-right directions by the first positioning rod 36 and the second positioning rod 310, achieving bidirectional precise positioning. The entire process requires no manual operation. If the mold needs to be replaced, simply reverse the operation: first, control the piston rod of the servo electric cylinder 38 to retract, causing the second positioning rod 310 to exit the second positioning groove 15; then, start the servo motor 24 to reverse, driving the first positioning rod 36 to exit the first positioning groove 14. Then, the mold body 13 can be removed from the mounting groove 11. After replacing the mold, repeat the above process, significantly improving the mold changing and positioning efficiency of the die-casting production line.

Claims

1. A bidirectional positioning device for die-casting molds, comprising: Mounting platform (1), with mounting groove (11) provided above the mounting platform (1), and a driving mechanism and a positioning mechanism provided inside the mounting platform (1), with the driving mechanism located below the positioning mechanism; The characteristic feature is that the driving mechanism includes a driving rod (2), the lower end of the driving rod (2) is rotatably connected to the inner bottom wall of the mounting platform (1) through a bearing, a worm gear (21) is fixedly sleeved on the outside of the driving rod (2), and a driving disk (22) is fixedly connected to the upper end of the driving rod (2). The positioning mechanism includes a partition (3), the four sides of which are fixedly connected to the inner walls of the mounting platform (1), and the upper end of the partition (3) is provided with stroke grooves (31) arranged in a ring array.

2. The bidirectional positioning device for die-casting molds according to claim 1, characterized in that, The upper end of the drive disk (22) is provided with inclined grooves (23) arranged in a ring array. The inner bottom wall of the mounting platform (1) is fixedly installed with a servo motor (24). The output shaft of the servo motor (24) is fixedly installed with a worm gear (25) through a coupling.

3. The bidirectional positioning device for die-casting molds according to claim 2, characterized in that, The outer surface of the worm (25) meshes with the tooth surface of the worm wheel (21), and the controller body (26) is fixedly installed on the upper end of the mounting platform (1).

4. The bidirectional positioning device for die-casting molds according to claim 2, characterized in that, The inner wall of the travel groove (31) is slidably connected to a travel block (32), and the inner wall of the travel block (32) is slidably sleeved with a guide rod (33). The two ends of the guide rod (33) are respectively fixedly connected to the inner walls of the two sides of the travel groove (31), and the lower end of the travel block (32) is fixedly connected to a slide rod (34).

5. A bidirectional positioning device for die-casting molds according to claim 4, characterized in that, The lower end of the slide bar (34) is slidably connected to the inner wall of the inclined groove (23), wherein the two stroke blocks (32) are fixedly installed on opposite sides with symmetrically distributed first pressure sensors (35), and the other side of the first pressure sensor (35) is fixedly connected with a first positioning rod (36).

6. A bidirectional positioning device for die-casting molds according to claim 5, characterized in that, One end of the first positioning rod (36) passes through and extends into the interior of the mounting groove (11), and the upper ends of the other two stroke blocks (32) are fixedly connected to mounting plates (37) that are symmetrically distributed. The upper ends of the mounting plates (37) are fixedly mounted with servo electric cylinders (38).

7. A bidirectional positioning device for die-casting molds according to claim 6, characterized in that, A second pressure sensor (39) is fixedly installed at one end of the piston rod of the servo electric cylinder (38). A second positioning rod (310) is fixedly connected to one end of the second pressure sensor (39). One end of the second positioning rod (310) passes through and extends into the interior of the mounting groove (11).

8. A bidirectional positioning device for die-casting molds according to claim 1, characterized in that: The inner bottom wall of the mounting groove (11) is fixedly connected to a conical positioning block (12), and the outside of the conical positioning block (12) is movably inserted into a mold body (13). The mold body (13) has first positioning grooves (14) symmetrically distributed on both sides, and second positioning grooves (15) symmetrically distributed on the front and back sides.

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