A high-precision motor parts injection molding flash removal device

Abstract

This utility model relates to the field of motor parts processing and discloses a high-precision flash removal device for injection molding motor parts. It includes a worktable, with a frame fixedly connected to the top of the worktable. A flash removal mechanism is installed on the top of the frame, and the mechanism includes a first motor fixedly mounted on the top of the frame. The bottom of the first motor's output end rotates through the top of the frame and is fixedly connected to a first rotating rod. In this utility model, through structures such as a second electric push rod, a lifting plate, and a hinge rod, the rotation radius of the cutting tool and the grinding block can be automatically and precisely adjusted. It can adapt to motor end caps of different sizes, integrating the flash removal tool and the surface finishing grinding block onto the same rotating mechanism. In a single processing cycle, both cutting and grinding processes can be completed sequentially, avoiding workpiece transfer between processes and significantly shortening the processing cycle.

Description

Technical Field

[0001] This utility model relates to the field of motor parts processing, and in particular to a high-precision motor parts injection molding flash removal device. Background Technology

[0002] Motor end caps, as critical protective and connecting components of motors, are typically manufactured using injection molding. This process involves injecting molten plastic into a precision mold cavity, which then cools and solidifies to achieve the desired shape. However, during injection molding, tiny gaps inevitably exist on the mold's parting surface. Under pressure, molten plastic seeps into these gaps, forming excess material along the parting line upon cooling—this is known as flash. This flash must be removed to ensure the end cap's assembly accuracy, appearance quality, and performance.

[0003] Currently, for removing burrs from motor end caps, existing equipment typically includes a fixed rotary table and one or more sets of fixed-position cutting or grinding tools. During processing, the end cap is fixed on the table, and the table is rotated by a motor, causing the edge of the end cap to contact the stationary cutting tool or grinding head, thereby completing the burr removal and polishing.

[0004] However, manually adjusting the tool position is inefficient. Each time a different model of end cap is changed, the machine needs to be stopped, measured, and adjusted again, which affects processing efficiency. To address this issue, a high-precision flash removal device for injection molding of motor parts is proposed. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a high-precision flash removal device for injection molding of motor parts, which aims to solve the problem that it is inconvenient to remove flash from motor end caps of different sizes in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision motor parts injection molding flash removal device, including a worktable, a frame fixedly connected to the top of the worktable, a flash removal mechanism provided on the top of the frame, the flash removal mechanism including a first motor, the first motor fixedly installed on the top of the frame, and the bottom of the output end of the first motor rotatably passes through the top of the frame and is fixedly connected to a first rotating rod, and the bottom of the first rotating rod is fixedly connected to a rotating rod. The outer wall of the rotating rod is slidably fitted with a sliding frame, and the bottom of the sliding frame is fixedly connected to a first electric push rod. There are two first electric push rods, which are symmetrically arranged on both sides of the first rotating rod. The bottom of the output end of the first electric push rod on the left side is fixedly connected to a cutting tool, and the bottom of the first electric push rod on the right side is fixedly installed with a motor, and the bottom of the output end of the motor is fixedly connected to a grinding block.

[0007] As a further description of the above technical solution: a limiting groove is provided at the top of the rotating rod, a limiting block is slidably connected to the inner wall of the limiting groove, and the top of the limiting block is fixedly connected to the top of the inner wall of the sliding frame.

[0008] As a further description of the above technical solution: A second electric actuator is fixedly installed on the top of the frame. The bottom of the output end of the second electric actuator movably passes through the top of the frame and is fixedly connected to a connecting plate. A limit rod is fixedly connected to the bottom of the connecting plate, and a ball is fixedly connected to the bottom of the limit rod. A lifting plate is movably sleeved on the outer wall of the first rotating rod. A ball groove is opened on the top of the lifting plate, and the inner wall of the ball groove is slidably connected to the outer wall of the ball. A hinge rod is hinged to the outer wall of the lifting plate, and the hinge rod is hinged to the top of the sliding frame.

[0009] As a further description of the above technical solution: there are several limiting rods, and the several limiting rods are evenly distributed on the top of the lifting plate.

[0010] As a further description of the above technical solution: a fixing rod is fixedly connected to the back of the inner wall of the frame, and a conductive slip ring is fixedly connected to the front of the fixing rod. The conductive slip ring is electrically connected to the first electric push rod and the motor respectively.

[0011] As a further description of the above technical solution: a clamping mechanism is provided on the workbench, the clamping mechanism including a second motor, the second motor being fixedly connected to the bottom of the workbench, a second rotating rod being fixedly connected to the top of the output end of the second motor, and the top of the second rotating rod rotating through the bottom of the workbench and being fixedly connected to a rotating disk, the top of the rotating disk having an arc-shaped groove, a fixed seat being fixedly connected to the top of the workbench, and a moving groove being provided on the top of the fixed seat, a sliding rod being slidably connected to the inner wall of the arc-shaped groove, a moving block being fixedly connected to the top of the sliding rod, and the outer wall of the moving block being slidably connected to the inner wall of the moving groove, a cover plate being fixedly connected to the top of the moving block, and a clamping block being fixedly connected to the top of the cover plate.

[0012] As a further description of the above technical solution: there are several arc-shaped grooves and several movable grooves, and they are arranged accordingly. The arc-shaped grooves are arranged around the top of the rotating disk, and the movable grooves are arranged around the top of the fixed base.

[0013] As a further description of the above technical solution: the outer side of the clamping block is arc-shaped, and an elastic pad is fixedly connected to the arc-shaped surface of the clamping block.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the rotation radius of the cutting tool and the grinding block can be automatically and accurately adjusted through the structure of the second electric push rod, the lifting plate and the hinge rod, etc. It can be adapted to motor end caps of different sizes. The cutting tool used for deburring and the grinding block used for surface finishing are integrated on the same rotating mechanism. In a single processing cycle, the cutting and grinding processes can be completed one after another, avoiding the transfer of workpieces between processes and greatly shortening the processing cycle.

[0015] 2. In this utility model, the rotating disk is driven by a motor, and the linkage between the arc groove and the moving groove enables multiple sets of clamping blocks to move synchronously and adaptively towards the center or centrifugally. This allows for fast and stable coaxial centering clamping of motor end caps with different inner diameters, significantly improving clamping efficiency and positioning accuracy. At the same time, the elastic pad design can effectively prevent damage to the workpiece surface. Attached Figure Description

[0016] Figure 1 This is a front view of a high-precision motor parts injection molding flash removal device proposed in this utility model; Figure 2 This is a schematic diagram of the flash removal mechanism of a high-precision motor parts injection molding flash removal device proposed in this utility model; Figure 3 This utility model proposes a high-precision flash removal device for injection molding motor parts. Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the clamping mechanism of a high-precision motor parts injection molding flash removal device proposed in this utility model; Figure 5 This is an unfolded view of the clamping mechanism of a high-precision motor accessory injection molding flash removal device proposed in this utility model.

[0017] Legend: 1. Workbench; 2. Frame; 3. Trimming mechanism; 31. First motor; 32. First rotating rod; 33. Rotating rod; 34. Limiting groove; 35. Limiting block; 36. Sliding frame; 37. First electric actuator; 38. Cutting tool; 39. Motor; 310. Grinding block; 311. Second electric actuator; 312. Connecting plate; 313. Limiting rod; 314. Lifting plate; 315. Ball groove; 316. Hinge rod; 317. Fixing rod; 318. Conductive slip ring; 4. Clamping mechanism; 41. Second motor; 42. Second rotating rod; 43. Rotating plate; 44. Arc groove; 45. Fixed seat; 46. Moving groove; 47. Sliding rod; 48. Moving block; 49. Cover plate; 410. Clamping block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 - Figure 3This utility model provides an embodiment of a high-precision motor parts injection molding flash removal device, including a worktable 1. A frame 2 is fixedly connected to the top of the worktable 1 for mounting and supporting a flash removal mechanism 3. The flash removal mechanism 3 is provided on the top of the frame 2. The flash removal mechanism 3 includes a first motor 31, which is fixedly installed on the top of the frame 2 and drives a cutter 38 and a grinding block 310 to perform circular motion. The bottom of the output end of the first motor 31 rotates through the top of the frame 2 and is fixedly connected to a first rotating rod 32 for driving a rotating rod 33 to rotate. The bottom of the first rotating rod 32 is fixedly connected to the rotating rod 33. A sliding frame 36 is slidably fitted on the outer wall of the rotating rod 33, allowing a first electric push rod 37 to slide on the rotating rod 33. A limiting groove 34 is provided at the top, and a limiting block 35 is slidably connected to the inner wall of the limiting groove 34. The top of the limiting block 35 is fixedly connected to the top of the inner wall of the sliding frame 36. By setting the limiting groove 34 and the limiting block 35, the sliding stability of the sliding frame 36 can be improved. A first electric push rod 37 is fixedly connected to the bottom of the sliding frame 36. There are two first electric push rods 37, which are symmetrically arranged on both sides of the first rotating rod 32. By setting the two first electric push rods 37, the cutter 38 and the grinding block 310 can be driven to rise and fall respectively. The output end of the first electric push rod 37 on the left side is fixedly connected to the cutter 38 for removing burrs from the motor end cover. The bottom of the first electric push rod 37 on the right side is fixedly installed with a motor 39. A grinding block 310 is fixedly connected to the bottom of the output end of the 9, used to grind the part of the motor end cover to remove burrs. A fixing rod 317 is fixedly connected to the back of the inner wall of the frame 2. A conductive slip ring 318 is fixedly connected to the front of the fixing rod 317. The conductive slip ring 318 is electrically connected to the first electric push rod 37 and the motor 39 respectively. The conductive slip ring 318 enables the first electric push rod 37 and the motor 39 to run stably when rotating. A second electric push rod 311 is fixedly installed on the top of the frame 2. The second electric push rod 311 can drive the lifting plate 314 to rise and fall. The bottom of the output end of the second electric push rod 311 moves through the top of the frame 2 and is fixedly connected to a connecting plate 312. A limit rod 313 is fixedly connected to the bottom of the connecting plate 312. The bottom of the lifting plate 314 is fixedly connected with a ball bearing. Several limiting rods 313 are evenly distributed on the top of the lifting plate 314. By setting multiple limiting rods 313, the connection stability between the connecting plate 312 and the lifting plate 314 can be improved. The lifting plate 314 is movably sleeved on the outer wall of the first rotating rod 32. A ball bearing groove 315 is opened on the top of the lifting plate 314, and the inner wall of the ball bearing groove 315 is slidably connected to the outer wall of the ball bearing. By setting the limiting rods 313, the ball bearing, and the ball bearing groove 315, the connecting plate 312 can be raised and lowered, driving the lifting plate 314 to rise and fall. At the same time, the lifting plate 314 can rotate relative to the connecting plate 312. A hinge rod 316 is hinged to the outer wall of the lifting plate 314, and the hinge rod 316 is hinged to the top of the sliding frame 36.By setting the hinge rod 316, the lifting plate 314 can drive the sliding frame 36 to move horizontally during lifting.

[0020] Reference Figure 4 - Figure 5 A clamping mechanism 4 is provided on the worktable 1. The clamping mechanism 4 includes a second motor 41, which is fixedly connected to the bottom of the worktable 1 and is used to drive the rotating disk 43 to rotate. A second rotating rod 42 is fixedly connected to the top of the output end of the second motor 41, and the top of the second rotating rod 42 rotates through the bottom of the worktable 1 and is fixedly connected to the rotating disk 43, which is used to drive multiple sliding rods 47 to rotate. An arc-shaped groove 44 is opened on the top of the rotating disk 43. A fixed base 45 is fixedly connected to the top of the worktable 1, and a moving groove 46 is opened on the top of the fixed base 45. There are several arc-shaped grooves 44 and moving grooves 46, which are arranged correspondingly. The arc-shaped grooves 44 are arranged around the top of the rotating disk 43, and the moving grooves 46 are arranged around the top of the fixed base 45. By setting the arc-shaped grooves 44 and the moving grooves 46, the rotation mechanism 43 can be rotated. The movable grooves 46 interact with each other, causing multiple movable blocks 48 to move synchronously when the rotating disk 43 rotates. A sliding rod 47 is slidably connected to the inner wall of the arc-shaped groove 44. A movable block 48 is fixedly connected to the top of the sliding rod 47, and the outer wall of the movable block 48 is slidably connected to the inner wall of the movable groove 46. A cover plate 49 is fixedly connected to the top of the movable block 48. The cover plate 49 is used to cover the movable groove 46 to prevent dust generated during grinding from entering the interior of the fixed seat 45 through the movable groove 46. A clamping block 410 is fixedly connected to the top of the cover plate 49. The outer side of the clamping block 410 is arc-shaped. The clamping block 410 is used to fix the motor end cover. An elastic pad is fixedly connected to the arc-shaped surface of the clamping block 410. The elastic pad allows for better use of the interior of the motor end cover.

[0021] Working principle: The injection-molded motor end cap is placed on the fixed seat 45. The second motor 41 is started, driving the second rotating rod 42 to rotate. The rotation of the second rotating rod 42 drives the rotating disk 43 to rotate. The rotation of the rotating disk 43 causes the fixed seat 45, which slides on the inner wall of the arc-shaped groove 44, to rotate. At the same time, under the action of the moving groove 46, the moving block 48 moves outward, thereby driving multiple clamping blocks 410 to move outward, abutting and fixing the inner wall of the motor end cap. After the motor end cap is fixed, the second electric push rod 311 is started, driving the connecting plate 312 to rise and fall. The rising and falling of the connecting plate 312 drives the lifting disk 314 to rise and fall through the limit rod 313 and the ball groove 315. The lifting plate 314 rises and falls, and the sliding frame 36 slides horizontally on the rotating rod 33 via the hinge rod 316. This adjusts the position of the cutter 38 and the grinding block 310 according to the size of the motor end cover. After adjustment, the cutter 38 and the grinding block 310 are lowered by the first electric push rod 37. At the same time, the first motor 31 and the motor 39 are started. The first motor 31 drives the first rotating rod 32 to rotate, which in turn drives the rotating rod 33 to rotate. The rotation of the rotating rod 33 causes the cutter 38 and the grinding block 310 to rotate along the outer wall of the motor end cover. The cutter 38 removes the burrs from the motor end cover, and the motor 39 drives the grinding block 310 to rotate and grind the burr-removed area.

[0022] It is worth noting that in this embodiment, the electrical equipment is a common device in the prior art, and the model used can be customized according to actual usage requirements. The power supply interface of the electrical equipment in this utility model is connected to the power supply system through a switch (not shown in the figure) and a wire (not shown in the figure) to realize its control. The circuits and controls involved are all prior art and are known in the current field, so they will not be described in detail here.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision motor parts injection molding flash removal device, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to a frame (2), and the top of the frame (2) is provided with an edge removal mechanism (3). The edge removal mechanism (3) includes a first motor (31), which is fixedly installed on the top of the frame (2). The bottom of the output end of the first motor (31) rotates through the top of the frame (2) and is fixedly connected to a first rotating rod (32). The bottom of the first rotating rod (32) is fixedly connected to a rotating rod (33). The outer wall of the rotating rod (33) is slidably fitted with a sliding frame (36), and the bottom of the sliding frame (36) is fixedly connected to a first electric push rod (37). There are two first electric push rods (37), which are symmetrically arranged on both sides of the first rotating rod (32). The bottom of the output end of the first electric push rod (37) on the left side is fixedly connected to a cutting tool (38), and the bottom of the first electric push rod (37) on the right side is fixedly installed with a motor (39), and the bottom of the output end of the motor (39) is fixedly connected to a grinding block (310).

2. The high-precision motor parts injection molding flash removal device according to claim 1, characterized in that: The top of the rotating rod (33) has a limiting groove (34), the inner wall of the limiting groove (34) is slidably connected to a limiting block (35), and the top of the limiting block (35) is fixedly connected to the top of the inner wall of the sliding frame (36).

3. The high-precision motor parts injection molding flash removal device according to claim 1, characterized in that: The top of the frame (2) is fixedly installed with a second electric actuator (311). The bottom of the output end of the second electric actuator (311) moves through the top of the frame (2) and is fixedly connected to a connecting plate (312). The bottom of the connecting plate (312) is fixedly connected to a limit rod (313), and the bottom of the limit rod (313) is fixedly connected to a ball. The outer wall of the first rotating rod (32) is movably fitted with a lifting plate (314). The top of the lifting plate (314) is provided with a ball groove (315), and the inner wall of the ball groove (315) is slidably connected to the outer wall of the ball. The outer wall of the lifting plate (314) is hinged with a hinge rod (316), and the hinge rod (316) is hinged to the top of the sliding frame (36).

4. The high-precision motor parts injection molding flash removal device according to claim 3, characterized in that: The number of the limiting rods (313) is several, and the several limiting rods (313) are evenly distributed on the top of the lifting plate (314).

5. The high-precision motor parts injection molding flash removal device according to claim 4, characterized in that: A fixing rod (317) is fixedly connected to the back of the inner wall of the frame (2), and a conductive slip ring (318) is fixedly connected to the front of the fixing rod (317). The conductive slip ring (318) is electrically connected to the first electric push rod (37) and the motor (39) respectively.

6. The high-precision motor parts injection molding flash removal device according to claim 1, characterized in that: The workbench (1) is provided with a clamping mechanism (4), which includes a second motor (41). The second motor (41) is fixedly connected to the bottom of the workbench (1). The top of the output end of the second motor (41) is fixedly connected to a second rotating rod (42). The top of the second rotating rod (42) rotates through the bottom of the workbench (1) and is fixedly connected to a rotating disk (43). The top of the rotating disk (43) is provided with an arc-shaped groove (44). The top of the workbench (1) is fixedly connected to a fixed seat (45). The top of the fixed seat (45) is provided with a moving groove (46). The inner wall of the arc-shaped groove (44) is slidably connected to a sliding rod (47). The top of the sliding rod (47) is fixedly connected to a moving block (48). The outer wall of the moving block (48) is slidably connected to the inner wall of the moving groove (46). The top of the moving block (48) is fixedly connected to a cover plate (49). The top of the cover plate (49) is fixedly connected to a clamping block (410).

7. The high-precision motor parts injection molding flash removal device according to claim 6, characterized in that: The number of arc-shaped grooves (44) and moving grooves (46) are both several and are arranged accordingly. The arc-shaped grooves (44) are arranged around the top of the rotating disk (43), and the moving grooves (46) are arranged around the top of the fixed base (45).

8. The high-precision motor parts injection molding flash removal device according to claim 7, characterized in that: The clamping block (410) is arc-shaped on the outside, and an elastic pad is fixedly connected to the arc-shaped surface of the clamping block (410).

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