Polishing device for mold manufacturing

Abstract

The invention provides a grinding device for mold manufacturing, and relates to the technical field of mold grinding, the grinding device comprises a grinding sleeve and an extension sleeve slidably connected in the grinding sleeve, an inner rod is coaxially mounted in the grinding sleeve, an inner groove is coaxially formed in the extension sleeve, the inner rod is slidably connected in the inner groove, and the inner rod is coaxially mounted in the inner groove. A plurality of top grooves are formed in the upper end face of the grinding sleeve at equal intervals, a centrifugal rod is slidably connected into each top groove, a round head is arranged on the side, away from the axis, of each centrifugal rod, and a push disc is coaxially arranged at the upper end of the extending sleeve. The telescopic control is realized through the cooperation of the guide function of the inner rod and the inner groove, the working state of the device can be automatically adjusted according to different polishing requirements through the ingenious cooperation of the centrifugal rod, the round head and the top ball in combination with the pressure transmission function of the push disc, and the stability and reliability of the telescopic process are ensured through the design of the transverse rod and the return spring.

Description

Technical Field

[0001] The invention relates to the technical field of mold grinding, and more particularly to a grinding device for mold manufacturing. Background Art

[0002] In the existing mold production process, many burrs often appear on the edge of the mold. These burrs not only affect the appearance quality of the mold, but may also have an adverse effect on subsequent use and assembly. The formation of burrs is mainly due to the excess part formed after the material overflows from the edge of the mold under high pressure during the casting or processing of the mold and cools down. Since these burrs are soft in texture, traditional grinding methods are often difficult to completely remove them at one time, and grinding is required on both sides of the mold. However, existing grinding equipment can usually only grind one side of the mold, which not only increases the complexity and time cost of the operation, but may also lead to uneven grinding effects, affecting the quality of the final product.

[0003] In addition, the existing grinding head design has obvious limitations and cannot be easily flipped or adjusted to meet the grinding needs of different positions. This means that the operator needs to frequently flip the mold manually during the grinding process, which not only increases the labor intensity, but may also cause damage to the mold surface due to improper operation. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the problems existing in the prior art, the present invention provides a grinding device for mold manufacturing to solve the technical problems mentioned in the background technology.

[0005] (II) Technical solution To achieve the above-mentioned object, the present invention provides the following technical solution: a grinding device for mold manufacturing, comprising a moving table and a follower plate cooperatively connected to the moving table; A telescopic mechanism, comprising a grinding sleeve and an extension sleeve slidably connected in the grinding sleeve, wherein an internal rod is coaxially installed in the grinding sleeve, an internal groove is coaxially opened in the extension sleeve, the internal rod is slidably connected in the internal groove, a plurality of top grooves are equidistantly opened on the upper end surface of the grinding sleeve, a centrifugal rod is slidably connected in each of the top grooves, a round head is opened on the side of the centrifugal rod away from the axis, a push plate is coaxially provided on the upper end of the extension sleeve, the push plate is slidably connected in the grinding sleeve, and the same number of top balls as the centrifugal rods are installed on the upper end surface of the push plate, and the round heads abut against the top balls; and The opening and closing mechanism comprises an annular groove provided in the grinding sleeve, wherein the annular groove is slidably provided with annular rods having the same number as the centrifugal rods.

[0006] Preferably, a plurality of tension springs are provided in the inner rod, and the other ends of the plurality of tension springs are respectively connected to the extension sleeves. The uniform distribution of the plurality of tension springs provides a stable contraction force for the extension sleeve, thereby ensuring the reliability of the extension sleeve during the retraction process.

[0007] Preferably, transverse rods with the same number as the centrifugal rods are equidistantly installed on the side walls of the internal rod, and each of the centrifugal rods is provided with a transverse groove. The multiple transverse rods are slidably connected in the transverse grooves, and the sliding cooperation between the transverse rods and the transverse grooves limits the movement trajectory of the centrifugal rods. The equidistant installation design ensures uniform force and improves the operating stability of the mechanism.

[0008] Preferably, a return spring is installed in each of the transverse rods, and the other end of the return spring is connected to the centrifugal rod. The setting of the return spring provides a continuous reset force for the centrifugal rod, ensuring that the centrifugal rod can return to its original position in a timely and accurate manner, thereby enhancing the automatic reset function of the mechanism.

[0009] Preferably, the opening and closing mechanism also includes a plurality of guide grooves equidistantly arranged in the grinding sleeve, and guide plates are slidably connected to the plurality of guide grooves, and the plurality of guide plates are fixedly mounted on the lower end surface of the push plate, respectively. The sliding cooperation between the guide grooves and the guide plates realizes a stable guiding effect, and the multi-point fixing design ensures the smoothness and accuracy of the movement of the push plate.

[0010] Preferably, annular springs are respectively installed on the plurality of annular rods, a fixing block is installed on the other end of each annular spring, the fixing block is fixedly installed in the annular groove, and the plurality of annular springs are respectively slidably connected in the annular groove. The combination of the annular spring and the fixing block provides the annular rod with fixing and unlocking functions, thereby ensuring the smooth movement of the annular rod in the annular groove and improving the reliability of the opening and closing mechanism.

[0011] Preferably, a plurality of guide plates are respectively provided with semicircular grooves on their lower end surfaces; when the top ball abuts against the top groove, the semicircular groove and the annular rod are in a coaxially fitted state; when the top ball moves away from the top groove, the annular rod leaves the semicircular groove; the fitting design of the semicircular groove and the annular rod realizes precise positioning and locking functions; the abutment mechanism of the top ball ensures the reliability and stability of state switching.

[0012] Preferably, a motor is fixedly mounted on the follower plate, a driving wheel is mounted on the protruding end of the motor, a belt is meshed on the driving wheel, and the motor realizes smooth power transmission through the transmission combination of the driving wheel and the belt, thereby ensuring the stability and continuity of the power output of the entire grinding system.

[0013] Preferably, two transmission shafts are rotatably provided on the follower plate, the grinding sleeve is installed on the transmission shafts, a driven wheel is installed on each of the transmission shafts, and belts are respectively engaged with the two driven wheels. The double transmission shaft design provides a more stable supporting force, and the meshing transmission between the driven wheel and the belt ensures the synchronization and stability of the rotation of the grinding sleeve.

[0014] Preferably, the movable platform is slidably connected to a bottom plate, a workbench is mounted on the bottom plate, and the sliding connection between the movable platform and the bottom plate enables flexible movement in multiple directions, thereby improving the practicability and working efficiency of the overall device.

[0015] (III) Beneficial effects Compared with the prior art, the present invention provides a grinding device for mold manufacturing, which has the following beneficial effects: In terms of the telescopic mechanism, the sliding cooperation between the grinding sleeve and the extension sleeve, combined with the guiding effect of the internal rod and the internal groove, realizes the telescopic control. Through the ingenious cooperation of the centrifugal rod, the round head and the top ball, combined with the pressure transmission effect of the push plate, the device can automatically adjust the working state according to different grinding requirements. The design of the transverse rod and the return spring ensures the stability and reliability of the telescopic process.

[0016] In terms of the opening and closing mechanism, the annular rod in the annular groove and the guide plate in the guide groove form a double protection mechanism. Through the cooperation of the annular spring and the fixed block, the automatic locking and releasing functions are realized. The design of the semicircular groove ensures the stability of the device under different working conditions. The whole mechanism responds quickly, which significantly improves the grinding quality and efficiency of the burrs on the edge of the mold.

[0017] This innovative structural design not only improves the accuracy and efficiency of grinding, but also greatly enhances the adaptability and reliability of the device, providing a practical grinding solution for the mold manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a grinding device for mold manufacturing in the present invention; Figure 2 It is a schematic diagram of the structure of the follower plate, the motor and the grinding sleeve in the present invention; Figure 3 It is a schematic diagram of the structure of the grinding sleeve and the extension sleeve in the present invention; Figure 4 It is a cross-sectional structural schematic diagram of the grinding sleeve and the extension sleeve in the present invention in a retracted state; Figure 5 It is a cross-sectional structural schematic diagram of the grinding sleeve and the extending sleeve in the present invention in an extended state; Figure 6 It is a schematic cross-sectional structural diagram of the grinding sleeve in the present invention; Figure 7 It is a schematic structural diagram of the extension sleeve and the centrifugal rod in the present invention.

[0019] In the figure: 11, moving table; 12, follower plate; 13, bottom plate; 14, workbench; 21, grinding sleeve; 22, extension sleeve; 23, internal rod; 24, internal groove; 25, top groove; 26, centrifugal rod; 27, round head; 28, push plate; 29, top ball; 31, annular groove; 32, annular rod; 33, guide groove; 34, guide plate; 35, annular spring; 36, fixed block; 37, semicircular groove; 41, motor; 42, driving wheel; 43, belt; 44, transmission shaft; 45, driven wheel; 210, tension spring; 211, transverse rod; 212, transverse groove; 213, return spring. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0022] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0023] See also Figures 1 to 7A grinding device for mold manufacturing includes a moving table 11 and a follower plate 12 connected to the moving table 11, a motor 41 is fixedly installed on the follower plate 12, a driving wheel 42 is installed on the protruding end of the motor 41, a belt 43 is meshed on the driving wheel 42, two transmission shafts 44 are rotatably provided on the follower plate 12, a grinding sleeve 21 is installed on the transmission shaft 44, each transmission shaft 44 is respectively installed with a driven wheel 45, the belts 43 are respectively meshed on the two driven wheels 45, the moving table 11 is slidably connected to the bottom plate 13, a workbench 14 is installed on the bottom plate 13, the telescopic mechanism includes a grinding sleeve 21 and a protruding sleeve 22 slidably connected to the grinding sleeve 21, an internal rod 23 is coaxially installed in the grinding sleeve 21, an internal groove 24 is coaxially opened in the protruding sleeve 22, and the internal rod 23 is slidably connected to the bottom plate 13. In the internal groove 24, a plurality of top grooves 25 are equidistantly provided on the upper end surface of the grinding sleeve 21, and a centrifugal rod 26 is slidably connected in each top groove 25, and a round head 27 is provided on the side of the centrifugal rod 26 away from the axis center, and a push plate 28 is coaxially provided at the upper end of the extending sleeve 22, and the push plate 28 is slidably connected in the grinding sleeve 21, and the same number of top balls 29 as the centrifugal rod 26 are installed on the upper end surface of the push plate 28, and the round head 27 abuts against the top ball 29, and the same number of transverse rods 211 as the centrifugal rod 26 are equidistantly provided on the side wall of the internal rod 23, and a transverse groove 212 is respectively provided in each centrifugal rod 26, and a plurality of transverse rods 211 are slidably connected in the transverse groove 212, and a return spring 213 is respectively installed in each transverse rod 211, and the other end of the return spring 213 is connected to the centrifugal rod 26.

[0024] The opening and closing mechanism includes an annular groove 31 provided in the grinding sleeve 21, and an annular rod 32 having the same number as the centrifugal rod 26 is slidably installed in the annular groove 31. A plurality of tension springs 210 are provided in the inner rod 23, and the other ends of the plurality of tension springs 210 are respectively connected to the extension sleeve 22. The opening and closing mechanism also includes a plurality of guide grooves 33 equidistantly provided in the grinding sleeve 21, and guide plates 34 are respectively slidably connected in the plurality of guide grooves 33. The plurality of guide plates 34 are respectively fixedly installed on the lower end surface of the push plate 28. Annular springs 35 are respectively installed on the annular rod 32, and a fixing block 36 is installed on the other end of each annular spring 35. The fixing block 36 is fixedly installed in the annular groove 31. Multiple annular springs 35 are respectively slidably connected in the annular groove 31. Semicircular grooves 37 are respectively provided on the lower end surfaces of multiple guide plates 34. When the top ball 29 abuts against the top groove 25, the semicircular groove 37 and the annular rod 32 are in a coaxial fit state. When the top ball 29 is away from the top groove 25, the annular rod 32 leaves the semicircular groove 37.

[0025] When grinding the mold, first place the mold on the workbench 14. When grinding the upper end surface of the mold, the lower end surface of the grinding sleeve 21 needs to be grinded. The moving table 11 can drive the follower plate 12 to move in multiple directions. Then, the motor 41 can drive the grinding sleeve 21 to rotate, so as to grind the upper end surface. At this time, the grinding sleeve 21 is in counterclockwise rotation. Since the fixed block 36 is fixedly installed on the inner wall of the annular groove 31, there is a large acceleration at the moment when the motor 41 is started. Since the annular rod 32 is flat, the grinding sleeve 21 rotates counterclockwise. The annular rod 32 and the guide rod are stuck in the semicircular groove 37, and the counterclockwise acceleration causes the annular rod 32 and the guide rod to move toward the fixed block 36 on the other side, and the annular spring 35 is in a stretched state, thereby deepening the clamping connection between the annular rod 32 and the semicircular groove 37. Therefore, the guide plate 34 is still in a fixed state and cannot extend downward. Then, the upper end surface of the mold is polished by the lower end surface of the polishing sleeve 21. When polishing the side of the mold, it is only necessary to fit the side wall of the polishing sleeve 21 against the side wall of the mold to carry out the polishing process.

[0026] When grinding the burrs on the edge of the mold, the grinding sleeve 21 is in clockwise rotation by changing the rotation direction of the motor 41. Due to the huge acceleration at the start, the annular spring 35 is in a compressed state, and then the annular rod 32 moves toward the fixed block 36 on the corresponding side, thereby releasing the connection between the annular rod 32 and the semicircular groove 37. At this time, the annular rod 32 has no limiting effect on the guide plate 34. Due to the huge centrifugal force during rotation, the centrifugal rod 26 is driven to move outward. Through the limitation of the transverse rod 211 and the transverse groove 212, the centrifugal rod 26 will only expand outward along the top groove 25, and the round head 27 is against the top ball 29, so it will exert downward pressure on the top ball 29. Through the synchronous application of pressure by multiple centrifugal rods 26, the push plate 28 is driven to move downward. Since the guide plate 34 is slidably connected in the guide groove 33, the guide plate 34 slides downward. At this time, the extension sleeve 22 extends outward. Please refer to Figure 5 , and then the side wall of the extending sleeve 22 and the lower end surface of the grinding sleeve 21 are respectively fitted to the edge position of the grinding tool. At this time, the edges on both sides can be fitted respectively, and then the two ends of the burr are ground, so that an efficient grinding effect will be achieved. When the grinding is completed, the grinding sleeve 21 stops rotating, and the centrifugal rod 26 loses its huge centrifugal force. Under the action of the tension spring 210, the extending sleeve 22 retracts backward into the grinding sleeve 21, and then under the thrust of the annular spring 35, the annular rod 32 is inserted into the semicircular groove 37, ensuring the fixation of the extending sleeve 22, thereby completing the grinding process.

[0027] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A grinding device for mold manufacturing, comprising a moving platform (11) and a follower plate (12) cooperatively connected to the moving platform (11); The telescopic mechanism is characterized by: The invention comprises a grinding sleeve (21) and an extension sleeve (22) slidably connected to the grinding sleeve (21), wherein an internal rod (23) is coaxially installed in the grinding sleeve (21), an internal groove (24) is coaxially opened in the extension sleeve (22), and the internal rod (23) is slidably connected in the internal groove (24), a plurality of top grooves (25) are equidistantly opened on the upper end surface of the grinding sleeve (21), a centrifugal rod (26) is slidably connected in each of the top grooves (25), a round head (27) is opened on the side of the centrifugal rod (26) away from the axis, a push plate (28) is coaxially installed on the upper end of the extension sleeve (22), the push plate (28) is slidably connected in the grinding sleeve (21), and the same number of top balls (29) as the number of centrifugal rods (26) are installed on the upper end surface of the push plate (28), and the round head (27) abuts against the top ball (29); and The opening and closing mechanism comprises an annular groove (31) formed in the grinding sleeve (21), wherein the annular groove (31) is slidably mounted with annular rods (32) having the same number as the centrifugal rods (26).

2. A grinding device for mold manufacturing according to claim 1, characterized in that: A plurality of tension springs (210) are arranged in the inner rod (23), and the other ends of the plurality of tension springs (210) are respectively connected to the extension sleeves (22).

3. A grinding device for mold manufacturing according to claim 2, characterized in that: The same number of transverse rods (211) as the number of centrifugal rods (26) are equidistantly mounted on the side wall of the inner rod (23), each centrifugal rod (26) is provided with a transverse groove (212), and the plurality of transverse rods (211) are slidably connected in the transverse grooves (212).

4. A grinding device for mold manufacturing according to claim 3, characterized in that: A return spring (213) is installed in each of the transverse rods (211), and the other end of the return spring (213) is connected to the centrifugal rod (26).

5. The grinding device for mold manufacturing according to claim 1, characterized in that: The opening and closing mechanism further comprises a plurality of guide grooves (33) equidistantly arranged in the grinding sleeve (21), wherein guide plates (34) are slidably connected to the plurality of guide grooves (33), and the plurality of guide plates (34) are respectively fixedly mounted on the lower end surface of the push plate (28).

6. A grinding device for mold manufacturing according to claim 5, characterized in that: An annular spring (35) is respectively mounted on the plurality of annular rods (32), a fixing block (36) is mounted on the other end of each annular spring (35), the fixing block (36) is fixedly mounted in the annular groove (31), and the plurality of annular springs (35) are respectively slidably connected in the annular groove (31).

7. A grinding device for mold manufacturing according to claim 6, characterized in that: A semicircular groove (37) is respectively formed on the lower end surface of the plurality of guide plates (34); when the top ball (29) contacts the top groove (25), the semicircular groove (37) and the annular rod (32) are in a coaxially fitted state; when the top ball (29) moves away from the top groove (25), the annular rod (32) leaves the semicircular groove (37).

8. The grinding device for mold manufacturing according to claim 1, characterized in that: A motor (41) is fixedly mounted on the follower plate (12), a driving wheel (42) is mounted on the protruding end of the motor (41), and a belt (43) is meshed with the driving wheel (42).

9. A grinding device for mold manufacturing according to claim 8, characterized in that: Two transmission shafts (44) are rotatably provided on the follower plate (12), the grinding sleeve (21) is mounted on the transmission shaft (44), a driven wheel (45) is mounted on each of the transmission shafts (44), and the belts (43) are respectively meshed with the two driven wheels (45).

10. A grinding device for mold manufacturing according to claim 1, characterized in that: The movable platform (11) is slidably connected to a base plate (13), and a workbench (14) is mounted on the base plate (13).

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