Universal joint line polishing equipment

Abstract

The utility model discloses universal joint line polishing equipment which comprises a polishing table, a positioning and supporting device, a polishing mechanism and a horizontal truss, the positioning and supporting device is arranged in the middle of the polishing table along the Y axis, a plastic shell workpiece is clamped on the positioning and supporting device, and the positioning and supporting device can drive the plastic shell workpiece to move along the Y axis. The positioning and supporting device can further drive the plastic shell workpiece to turn over and rotate, and a joint line on the plastic shell workpiece is adjusted to face the position over the plastic shell workpiece; a horizontal truss in the X-axis direction is arranged on the polishing table, a polishing mechanism is installed on the horizontal truss, the polishing mechanism can move on the horizontal truss along the X axis, the polishing mechanism moves along the Z axis to adjust the position, and the surface of a plastic shell workpiece below is automatically polished; the equipment can adjust the angle of a plastic shell product in real time, so that a joint line faces upwards all the time in the machining process and is aligned with a grinding head, full-automatic deburring and grinding machining can be achieved, and high grinding precision is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of burr treatment of injection molded parts, and particularly relates to a general-purpose mold clamping line grinding device. Background Art

[0002] An injection mold is composed of two half molds. After injection molding, the product needs to be taken out, so the two half molds must be opened. There will be a line on the injection molded product at the place where the molds are separated. This line is called the mold clamping line. Therefore, after the plastic part is ejected from the injection molding process, the injection mold clamping line will remain on the surface. In the subsequent processing, it is necessary to perform special deburring processing on the injection mold clamping line to remove the excess mold clamping line to obtain a more beautiful appearance. Common methods for removing the mold clamping line include manual removal method, hot melt removal method, cold material shaving method, etc. If manual or hot melt method is used for removal, it is easy to cause secondary damage to the surface of the workpiece due to excessive operation, the operation difficulty is large, the operation stability is difficult to guarantee, and the processing efficiency is relatively low; since the mold clamping line on the surface of the plastic part is not a regular straight line, there may be mold clamping lines at multiple angles and in multiple directions, and even the mold clamping line may fluctuate along the shape of the workpiece. Therefore, it is also very difficult to remove by machine grinding. The main problem is that the alignment position needs to be frequently adjusted during the grinding process, and the existing equipment is difficult to meet such positioning and angle-changing requirements, and it is difficult to meet the accuracy requirements for removing the mold clamping line. Content of the Utility Model

[0003] In view of the above problems and technical requirements, the utility model provides a general-purpose mold clamping line grinding device, which can adjust the angle of the plastic shell product in real time, so that the mold clamping line is always facing upward and aligned with the grinding head during the processing. It can not only realize full-automatic deburring and grinding processing, but also has high grinding accuracy.

[0004] The technical solution of the utility model is as follows: a general-purpose mold clamping line grinding device, including a grinding table, a positioning and supporting device, a grinding mechanism and a horizontal truss. A positioning and supporting device is arranged along the Y-axis in the middle of the grinding table. A plastic shell workpiece is clamped on the positioning and supporting device. The positioning and supporting device can drive the plastic shell workpiece to move along the Y-axis, and the positioning and supporting device can also drive the plastic shell workpiece to perform flipping and rotating actions to adjust the mold clamping line on the plastic shell workpiece to face directly upward; a horizontal truss in the X-axis direction is arranged on the grinding table, and a grinding mechanism is installed on the horizontal truss. The grinding mechanism can move along the X-axis on the horizontal truss, and the grinding mechanism moves along the Z-axis to adjust the position to automatically grind the surface of the plastic shell workpiece below.

[0005] Furthermore, a Y-axis linear module, a Y-axis slide rail and a sliding support plate are provided in the middle of the grinding table. The sliding support plate is connected to the Y-axis linear module. Y-axis slide rails are symmetrically arranged on both sides of the Y-axis linear module. The sliding support plate is simultaneously slidably connected to the Y-axis slide rails. The positioning and supporting device is installed on the sliding support plate, and the Y-axis linear module drives the positioning and supporting device to move along the Y-axis.

[0006] Furthermore, the positioning and supporting device includes a support fixture, a rotating mechanism and a flipping mechanism. The flipping mechanism includes a first support plate, a second support plate, a flipping motor and a horizontal flipping frame. The front section of the horizontal flipping frame is a horizontal plate, and the rear section is a support shaft. The horizontal plate is fixedly connected to the end of the support shaft. The other end of the support shaft sequentially passes through the first support plate and the second support plate and is rotatably connected to the two support plates. A flipping motor is arranged at the rear side of the second support plate. The output shaft of the flipping motor extends into the front side of the second support plate. A first synchronous pulley is fixedly connected to the output shaft of the flipping motor. A second synchronous pulley is connected to the support shaft. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt. The support fixture is installed on the horizontal plate. The plastic shell workpiece to be processed is clamped on the support fixture. The rotating mechanism is installed on the lower surface of the horizontal plate. The flipping motor drives the horizontal flipping frame to flip in the vertical direction, and the rotating mechanism drives the support fixture and the plastic shell workpiece to rotate around the center of the support fixture.

[0007] Furthermore, the rotating mechanism includes a rotating motor, a third synchronous pulley, a fourth synchronous pulley and a rotating shaft. The rotating motor is connected to the lower side of the horizontal plate through a fastener. The output shaft of the rotating motor extends upward. A third synchronous pulley is connected to the output shaft of the rotating motor. The rotating shaft is vertically and rotatably connected to the horizontal plate. The support fixture is fixedly connected to the outside of the rotating shaft above the horizontal plate. A fourth synchronous pulley is fixedly connected to the rotating shaft below the horizontal plate. The third synchronous pulley and the fourth synchronous pulley are connected by a synchronous belt. The rotating motor drives the rotating shaft to rotate, and the rotating shaft drives the support fixture and the plastic shell workpiece to rotate synchronously.

[0008] Furthermore, flipping positioning terminals are provided on the circumferential surface of the support shaft of the horizontal flipping frame, and flipping sensors are correspondingly arranged on the rear side surface of the first support plate. The flipping sensors sense the flipping angle through the flipping positioning terminals.

[0009] Furthermore, a rotation sensor is installed on the horizontal plate, and rotation positioning terminals are installed on the circumferential surface of the rotating shaft. The rotation sensor can sense the position of the rotation positioning terminals.

[0010] The above-mentioned flipping sensor and rotation sensor can respectively locate the initial positions of the support shaft and the rotating shaft. When the grinding process of one workpiece is completed, it can return to the initial position before processing the next workpiece, which is convenient for making angle adjustments again according to the established program.

[0011] Further, an X-axis linear module is provided on the horizontal truss. A Z-axis linear module is connected to the X-axis linear module, and a grinding mechanism is connected to the Z-axis linear module. The grinding mechanism can move freely along the X-axis and Z-axis.

[0012] Further, a vertical support plate is connected to the Z-axis linear module. A grinding mechanism is installed on the side of the vertical support plate. The grinding mechanism includes an angle adjustment plate, a chute, a cylinder, a grinding motor, and a grinding head. The angle adjustment plate is connected to the side of the vertical support plate. A chute is provided along the length direction on the angle adjustment plate. A cylinder parallel to the chute is provided beside the chute. A sliding plate is connected to the chute, and a fastening bracket is connected to the sliding plate. The front end of the cylinder is connected to the fastening bracket. A grinding motor is connected to the fastening bracket. A grinding head is provided at the front end of the grinding motor. The cylinder drives the grinding motor and the grinding head to stretch back and forth along the angle adjustment plate. The grinding head moves along the X-axis and Z-axis to adjust the position, aligns with the mold joint line on the plastic shell workpiece below for grinding operation. The grinding motor provides rotational power for the grinding head, and the horizontal truss and the Z-axis linear module provide a stable support for the grinding head.

[0013] Further, a fixed round hole and an arc-shaped long hole are provided on the angle adjustment plate. Two clamping holes are provided on the side of the vertical support plate, one above and one below. The fixed round hole is connected to the lower clamping hole, and the upper clamping hole is locked with the arc-shaped long hole through a bolt. The rotation of the arc-shaped long hole around the fixed round hole can adjust the angle of the grinding head. Connect the lower clamping hole and the fixed round hole with a bolt. In the state where the bolt is not tightened, the arc-shaped long hole can slide relative to the upper clamping hole. When the grinding head is adjusted to the specified angle, lock the upper clamping hole and the fixed round hole to fix the grinding angle of the grinding head.

[0014] The beneficial effects of the present utility model are as follows: 1) In this grinding device, a rotating mechanism and a flipping mechanism are arranged behind the support fixture for clamping the plastic shell workpiece. The rotating mechanism can drive the plastic shell workpiece to rotate 360 degrees, and the flipping mechanism flips the plastic shell workpiece in the vertical direction, so as to ensure that the mold joint line on the outside of the plastic shell is always facing directly upward. During the grinding process, the grinding position can be adjusted in real time according to the position and trend of the mold joint line. The precise positioning of the plastic shell can improve the grinding accuracy. The fully automatic grinding operation has high efficiency, and the operation can be avoided by manual operation to avoid operation damage, resulting in a higher qualified rate; 2) The grinding mechanism can move along the X-axis and Z-axis, while the plastic shell workpiece can move along the Y-axis. The cooperation between the two is equivalent to the grinding mechanism being able to move freely in the X / Y / Z directions relative to the plastic shell workpiece to adjust the grinding position. The grinding flexibility is high, and precise grinding actions can be completed. Compared with manual operation, jitter during the grinding process can be avoided, the grinding stability is high, the quality of the finished product is stable, and grinding operations can be performed on various types of plastic shells, with strong versatility. Description of the Drawings

[0015] Figure 1This is the overall structure diagram of the general mold clamping line grinding equipment of the present utility model;

[0016] Figure 2 This is the structure diagram of the positioning and supporting device in the present utility model;

[0017] Figure 3 This is the transmission connection diagram of the flipping mechanism and the rotating mechanism in the present utility model;

[0018] Figure 4 This is the connection diagram of the horizontal truss and the grinding mechanism in the present utility model;

[0019] Figure 5 This is the structure diagram of the grinding mechanism in the present utility model;

[0020] The markings in the figure are: grinding table 1, Y-axis linear module 11, Y-axis slide rail 12, sliding support plate 13, positioning and supporting device 2, supporting fixture 21, rotating mechanism 3, rotating motor 31, third synchronous pulley 32, fourth synchronous pulley 33, rotating shaft 34, rotating positioning terminal 341, rotating sensor 35, flipping mechanism 4, first support plate 41, first synchronous pulley 42, second synchronous pulley 43, second support plate 44, flipping motor 45, horizontal flipping frame 46, horizontal plate 461, support shaft 462, flipping positioning terminal 4621, flipping sensor 47, grinding mechanism 5, angle adjustment plate 51, chute 52, cylinder 53, grinding motor 54, grinding head 55, sliding plate 56, fastening bracket 57, fixed round hole 58, arc-shaped long hole 59, horizontal truss 6, X-axis linear module 61, Z-axis linear module 62, vertical support plate 63, clamping hole 631, plastic shell workpiece 7. Specific embodiments

[0021] The following further describes the present utility model with reference to the accompanying drawings and embodiments.

[0022] As Figures 1-5 shown, the general mold clamping line grinding equipment of the present utility model includes a grinding table 1, a positioning and supporting device 2, a grinding mechanism 5, and a horizontal truss 6. A positioning and supporting device 2 is provided along the Y-axis in the middle of the grinding table 1. A plastic shell workpiece 7 is clamped on the positioning and supporting device 2. The positioning and supporting device 2 can drive the plastic shell workpiece 7 to move along the Y-axis, and the positioning and supporting device 2 can also drive the plastic shell workpiece 7 to perform flipping and rotating actions to adjust the mold clamping line on the plastic shell workpiece 7 to face directly upward.

[0023] A horizontal truss 6 in the X-axis direction is provided on the grinding table 1. A grinding mechanism 5 is installed on the horizontal truss 6. The grinding mechanism 5 can move along the X-axis on the horizontal truss 6, and the grinding mechanism 5 moves along the Z-axis to adjust its position, so as to automatically grind the surface of the plastic shell workpiece 7 below. Specifically, an X-axis linear module 61 is provided on the horizontal truss 6. A Z-axis linear module 62 is connected to the X-axis linear module 61. The grinding mechanism 5 is connected to the Z-axis linear module 62. The grinding mechanism 5 can move freely along the X-axis and the Z-axis. A vertical support plate 63 is connected to the Z-axis linear module 62. The grinding mechanism 5 is installed on the side of the vertical support plate 63. The grinding mechanism 5 includes an angle adjustment plate 51, a chute 52, a cylinder 53, a grinding motor 54 and a grinding head 55. The angle adjustment plate 51 is connected to the side of the vertical support plate 63. A chute 52 is provided along the length direction on the angle adjustment plate 51. A cylinder 53 parallel to the chute 52 is provided beside the chute 52. A sliding plate 56 is connected to the chute 52. A fastening bracket 57 is connected to the sliding plate 56. The front end of the cylinder 53 is connected to the fastening bracket 57. The grinding motor 54 is connected to the fastening bracket 57. A grinding head 55 is provided at the front end of the grinding motor 54. The cylinder 53 drives the grinding motor 54 and the grinding head 55 to telescopically move back and forth along the angle adjustment plate. The grinding head 55 moves along the X-axis and the Z-axis to adjust its position, aligns with the mold joint line on the plastic shell workpiece 7 below for grinding operation. The grinding motor 54 provides rotational power for the grinding head 55, and the horizontal truss 6 and the Z-axis linear module 62 provide a stable support for the grinding head 55.

[0024] A fixed round hole 58 and an arc-shaped long hole 59 are provided on the angle adjustment plate 51. Two clamping holes 631 are provided on the side of the vertical support plate 63, one above the other. The fixed round hole 58 is connected to the lower clamping hole 621, and the upper clamping hole 631 is locked with the arc-shaped long hole 59 by bolts. The arc-shaped long hole 59 can rotate around the fixed round hole 58 to adjust the angle of the grinding head 55. Connect the lower clamping hole 631 and the fixed round hole 58 with bolts. When the bolts are not locked, the arc-shaped long hole 59 can slide relative to the upper clamping hole 631. When the grinding head 55 is adjusted to the limited angle, lock the upper clamping hole and the fixed round hole to fix the grinding angle of the grinding head 55.

[0025] A Y-axis linear module 11, a Y-axis slide rail 12 and a sliding support plate 13 are provided in the middle of the grinding table 1. The sliding support plate 13 is connected to the Y-axis linear module 11. Y-axis slide rails 12 are symmetrically provided on both sides of the Y-axis linear module 11. The sliding support plate 13 is simultaneously slidably connected to the Y-axis slide rails 12. The positioning and supporting device 2 is installed on the sliding support plate 13. The Y-axis linear module 11 drives the positioning and supporting device 2 to move along the Y-axis.

[0026] The positioning and supporting device 2 includes a supporting fixture 21, a rotating mechanism 3 and a flipping mechanism 4. The flipping mechanism 4 includes a first support plate 41, a second support plate 44, a flipping motor 45 and a horizontal flipping frame 46. The first support plate 41 and the second support plate 44 are vertically and fixedly installed on the sliding support plate 13. The front section of the horizontal flipping frame 46 is a horizontal plate 461, and the rear section is a support shaft 462. The horizontal plate 461 is fixedly connected to the end of the support shaft 462. The other end of the support shaft 462 passes through the first support plate 41 and the second support plate 44 in sequence and is rotatably connected to the two support plates. A flipping motor 45 is arranged at the rear side of the second support plate 44. The output shaft of the flipping motor 45 extends into the front side of the second support plate. A first synchronous pulley 42 is fixedly connected to the output shaft of the flipping motor 45. A second synchronous pulley 43 is connected to the support shaft 462. The first synchronous pulley 42 and the second synchronous pulley 43 are connected by a synchronous belt. The supporting fixture 21 is installed on the horizontal plate 461. The plastic shell workpiece 7 to be processed is clamped on the supporting fixture 21. The rotating mechanism 3 is installed on the lower surface of the horizontal plate 461. The flipping motor 45 drives the horizontal flipping frame 46 to flip in the vertical direction. The rotating mechanism 3 drives the supporting fixture 21 and the plastic shell workpiece 7 to rotate around the center of the supporting fixture.

[0027] The rotating mechanism 3 includes a rotating motor 31, a third synchronous pulley 32, a fourth synchronous pulley 33 and a rotating shaft 34. The rotating motor 31 is connected to the lower side of the horizontal plate 461 through a fastener. The output shaft of the rotating motor 31 extends upward. The third synchronous pulley 32 is connected to the output shaft of the rotating motor 31. The rotating shaft 34 is vertically and rotatably connected to the horizontal plate 461. The supporting fixture 21 is fixedly connected to the outside of the rotating shaft 34 above the horizontal plate 461. The fourth synchronous pulley 33 is fixedly connected to the rotating shaft 34 below the horizontal plate 461. The third synchronous pulley 32 and the fourth synchronous pulley 33 are connected by a synchronous belt. The rotating motor 31 drives the rotating shaft 34 to rotate, and the rotating shaft 34 drives the supporting fixture 21 and the plastic shell workpiece 7 to rotate synchronously.

[0028] A flipping positioning terminal 4621 is arranged on the circumferential surface of the support shaft 462 of the horizontal flipping frame 46. A flipping sensor 47 is correspondingly arranged on the rear side surface of the first support plate 41. The flipping sensor 47 senses the flipping angle through the flipping positioning terminal 4621. A rotating sensor 35 is installed on the horizontal plate 461. A rotating positioning terminal 341 is installed on the circumferential surface of the rotating shaft 34. The rotating sensor 35 can sense the position of the rotating positioning terminal 341.

[0029] The operation process of the present utility model: Adjust the angle of the grinding head 55. After the arc-shaped long hole 59 rotates around the fixed circular hole 58 to the limited angle position, lock and connect the arc-shaped long hole 59 and the fixed circular hole 58 to the side of the vertical support plate 63 through two bolts, and adjust the extension distance of the grinding head 55 through the air cylinder 53; Clamp the plastic shell workpiece 7 to be processed on the support fixture 21, the rotation mechanism 3 adjusts the rotation of the plastic shell, the flipping mechanism 4 adjusts the flipping of the plastic shell, make the mold clamping line segment to be ground on the outside of the plastic shell workpiece 7 face directly upward, after adjustment, the grinding head 55 moves to the corresponding position along the X-axis, and then probes downward along the Z-axis to the grinding depth of the mold clamping line, the grinding motor 54 drives the grinding head 55 to rotate and grind, the Y-axis linear module 11 drives the plastic shell workpiece 7 to move along the Y-axis, the mold clamping line passes through the grinding head 55, and the mold clamping line segment is ground and polished. After one mold clamping line is ground, the grinding head 55 moves upward, re-flip and rotate the position of the plastic shell workpiece 7 to make the unground mold clamping line face directly upward, and grind again until all the surface mold clamping lines are completed with the grinding operation.

[0030] As described above, only several preferred embodiments of the present utility model are provided, but the protection scope of the present utility model is not limited thereto. Any changes and substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. Universal parting line grinding equipment, characterized by: It includes a grinding table, a positioning support device, a grinding mechanism and a horizontal truss. A positioning support device is provided along the Y-axis in the middle of the grinding table. A plastic shell workpiece is clamped on the positioning support device. The positioning support device can drive the plastic shell workpiece to move along the Y-axis. The positioning support device can also drive the plastic shell workpiece to flip and rotate, and adjust the mold line on the plastic shell workpiece to face directly upward; a horizontal truss in the X-axis direction is provided on the grinding table, and a grinding mechanism is installed on the horizontal truss. The grinding mechanism can move along the X-axis on the horizontal truss, and the grinding mechanism moves along the Z-axis to adjust the position, so as to automatically grind the surface of the plastic shell workpiece below.

2. The universal parting line grinding equipment according to claim 1, characterized in that: The grinding table is provided with a Y-axis linear module, a Y-axis slide rail and a sliding support plate in the middle part, the Y-axis linear module is connected to the sliding support plate, the Y-axis linear module is symmetrically provided with Y-axis slide rails on both sides, the sliding support plates are simultaneously slidably connected to the Y-axis slide rails, the positioning support device is installed on the sliding support plate, and the Y-axis linear module drives the positioning support device to move along the Y-axis.

3. The universal parting line grinding equipment according to claim 2, characterized in that: The positioning support device includes a supporting fixture, a rotating mechanism and a flipping mechanism, the flipping mechanism includes a first supporting plate, a second supporting plate, a flipping motor and a horizontal flipping frame, the first supporting plate and the second supporting plate being vertically fixedly mounted on the sliding supporting plate, the front section of the horizontal flipping frame is a horizontal plate, and the rear section is a supporting shaft, the horizontal plate is fixedly connected to the end of the supporting shaft, the other end of the supporting shaft passes through the first supporting plate and the second supporting plate in sequence, and is rotatably connected to the two supporting plates. A flipping motor is arranged on the rear side of the second supporting plate, the output shaft of the flipping motor extends into the front side surface of the second supporting plate, the first synchronous wheel is fixedly connected to the output shaft of the flipping motor, the second synchronous wheel is connected to the supporting shaft, and the first synchronous wheel and the second synchronous wheel are connected through a synchronous belt; a supporting fixture is installed on the horizontal plate, a plastic shell workpiece to be processed is clamped on the supporting fixture, a rotating mechanism is installed on the lower surface of the horizontal plate, the flipping motor drives the horizontal flipping frame to flip in the vertical direction, and the rotating mechanism drives the supporting fixture and the plastic shell workpiece to rotate around the center of the supporting fixture.

4. The universal parting line grinding equipment according to claim 3 is characterized in that: The rotating mechanism includes a rotating motor, a third synchronous wheel, a fourth synchronous wheel and a rotating shaft. The rotating motor is connected to the bottom of the horizontal plate through a fastener. The output shaft of the rotating motor extends upward. The output shaft of the rotating motor is connected to the third synchronous wheel. The rotating shaft is vertically rotatable and connected to the horizontal plate. The outer side of the rotating shaft above the horizontal plate is fixedly connected to a supporting fixture. The rotating shaft below the horizontal plate is fixedly connected to the fourth synchronous wheel. The third synchronous wheel and the fourth synchronous wheel are connected by a synchronous belt. The rotating motor drives the rotating shaft to rotate, and the rotating shaft drives the supporting fixture and the plastic shell workpiece to rotate synchronously.

5. The universal parting line grinding equipment according to claim 4, characterized in that: A flip positioning terminal is arranged on the peripheral surface of the support shaft of the horizontal flip frame, and a flip sensor is arranged correspondingly on the rear side surface of the first support plate. The flip sensor senses the flip angle through the flip positioning terminal.

6. The universal parting line grinding equipment according to claim 5, characterized in that: A rotation sensor is installed on the horizontal plate, and a rotation positioning terminal is installed on the peripheral surface of the rotating shaft. The rotation sensor can sense the position of the rotation positioning terminal.

7. The universal parting line grinding device according to claim 6, characterized in that: The horizontal truss is provided with an X-axis linear module, the X-axis linear module is connected to the Z-axis linear module, the Z-axis linear module is connected to a grinding mechanism, and the grinding mechanism can move freely along the X-axis and the Z-axis.

8. The universal parting line grinding device according to claim 7, characterized in that: The Z-axis linear module is connected to a vertical support plate, and a grinding mechanism is installed on the side of the vertical support plate. The grinding mechanism includes an angle adjustment plate, a slide groove, a cylinder, a grinding motor and a grinding head. The angle adjustment plate is connected to the side of the vertical support plate, and a slide groove is provided on the angle adjustment plate along the length direction. A cylinder parallel to the slide groove is provided next to the slide groove, a slide plate is connected to the slide groove, a fastening bracket is connected to the slide plate, the front end of the cylinder is connected to the fastening bracket, the fastening bracket is connected to the grinding motor, and a grinding head is provided at the front end of the grinding motor. The cylinder drives the grinding motor and the grinding head to be able to extend and retract forward and backward along the angle adjustment plate.

9. The universal parting line grinding device according to claim 8, characterized in that: The angle adjustment plate is provided with a fixed circular hole and an arc-shaped long hole, and the side of the vertical support plate is provided with upper and lower clamping holes. The fixed circular hole is connected to the clamping hole below, and the upper clamping hole and the arc-shaped long hole are locked by bolts. The arc-shaped long hole can adjust the angle of the grinding head by rotating around the fixed circular hole.

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