Electrolytic grinding electrode loss on-line compensation device

Abstract

The utility model relates to electrolytic grinding processing technical field, concretely relates to a kind of electrolytic grinding electrode loss on-line compensation device, including base, motor, grinding wheel, compensation mechanism and positioning mechanism, motor is slidably installed on base by moving mechanism, moving mechanism is used to limit motor, grinding wheel is fixedly installed on the output shaft of motor, compensation mechanism is used to drive motor to move, positioning mechanism is used to position grinding wheel, compensation mechanism includes sliding block and fixed block, sliding block is slidably installed on fixed block by cylinder rod, and cylinder rod is connected between fixed block by spring, fixed block is fixedly installed on base.The electrolytic grinding electrode loss on-line compensation device, by the moving mechanism, compensation mechanism and positioning mechanism being set, can grinding wheel electrode wear, by the elastic force of spring, the position of grinding wheel is adjusted in real time to compensate loss, to improve the efficiency and precision quality of electrolytic grinding processing.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic grinding technology, specifically to an online compensation device for electrode wear in electrolytic grinding. Background Technology

[0002] Electrolytic grinding is a composite machining technology that combines electrolytic processing with mechanical grinding. In electrolysis, the electrode is connected to the negative terminal of a DC power supply, and the workpiece to the positive terminal, with an electrolyte flowing between them. Under the influence of the electric field, anodic dissolution occurs on the workpiece surface, forming an oxide film. Mechanical grinding involves maintaining a certain pressure between the electrode and the workpiece and maintaining relative motion, using abrasive particles to promptly scrape away the oxide film on the workpiece surface, exposing a fresh workpiece surface for continued electrolytic reaction with the electrolyte. This cycle of action ultimately achieves efficient and precise material removal.

[0003] Electrode wear in electrolytic grinding refers to the material loss of the cathode electrode during the machining process due to the combined effects of electrolysis and mechanical grinding, resulting in a larger gap between the abrasive and the workpiece. The degree of wear is influenced by a combination of factors: electrolysis parameters determine the rate and uniformity of electrolytic erosion; excessively high current density can lead to localized over-dissolution of the electrode; grinding parameters affect mechanical wear and the efficiency of electrolytic product removal; excessive feed rate may exacerbate mechanical friction between the electrode and the workpiece. Electrode wear directly affects machining accuracy and surface quality.

[0004] Existing electrolytic grinding electrode compensation devices typically move the abrasive towards the workpiece clamping device via a slider and lead screw after the electrolytic grinding machine stops operating. This reduces the gap between the abrasive and the workpiece to meet the standard and compensates for electrode wear. However, this method requires stopping the machine, which reduces the efficiency of electrolytic grinding. Furthermore, it is difficult to perform real-time compensation during workpiece processing, which can easily lead to a decrease in the accuracy and quality of the workpiece. Utility Model Content

[0005] The purpose of this invention is to provide an online compensation device for electrode wear in electrolytic grinding.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An online compensation device for electrode wear in electrolytic grinding is provided, comprising a base, a motor, a grinding wheel, a compensation mechanism, and a positioning mechanism. The motor is slidably mounted on the base via a moving mechanism, which is used to limit the movement of the motor. The grinding wheel is fixedly mounted on the output shaft of the motor. The compensation mechanism is used to drive the motor to move, and the positioning mechanism is used to position the grinding wheel.

[0008] The compensation mechanism includes a slider and a fixed block. The slider is slidably mounted on the fixed block via a cylindrical rod, and the cylindrical rod and the fixed block are connected by a spring. The fixed block is fixedly mounted on a base. The spring and slider drive the motor grinding wheel to move, achieving online elastic compensation of the electrodes.

[0009] Furthermore, the compensation mechanism also includes a hinge rod. The base and the moving mechanism are hinged together by a telescopic rod. One end of the hinge rod is hinged to the slider, and the other end of the hinge rod is hinged to the telescopic rod by a hinge post. A guide groove is provided on the base, and the slider is slidably connected to the guide groove.

[0010] Furthermore, the moving mechanism includes a guide seat and a mounting bracket. The guide seat is fixedly installed on the base and has a sliding groove. The mounting bracket is fixedly installed on the motor and is slidably connected to the sliding groove via a sliding seat.

[0011] Furthermore, the moving mechanism also includes a baffle and a one-way limiting mechanism. The baffle is fixedly installed on the sliding seat, the mounting bracket is hinged to the telescopic rod, and the one-way limiting mechanism is used to limit the sliding seat in one direction.

[0012] Furthermore, the one-way limiting mechanism includes a gear, a rack, and a cylinder. The gear is mounted on the cylinder via a ratchet, and the cylinder is fixedly mounted on the bottom of the sliding seat. The rack is slidably mounted on the inner side of the slide groove, and the rack meshes with the gear.

[0013] Furthermore, the one-way limiting mechanism also includes an electric telescopic rod and a pawl. The electric telescopic rod is fixedly installed on the guide seat, and its output end is fixedly connected to the rack. A groove is formed on the cylinder, and an arc-shaped slot is formed within the groove. The pawl is rotatably installed in the groove, and the pawl is connected to the groove by a torsion spring. The pawl is slidably connected to the arc-shaped slot through a cylindrical block, and the pawl is engaged with the ratchet. Through the one-way limiting effect of the ratchet and pawl, the phenomenon of backtracking is prevented when the motor drives the grinding wheel for processing.

[0014] Furthermore, the positioning mechanism includes a movable block, a positioning plate, a ball bearing, and a support block. The movable block is slidably mounted on the support block via a guide rod, and the support block is fixedly mounted on the guide seat. The positioning plate is fixedly mounted on the movable block, and the ball bearing is fixedly mounted on the positioning plate.

[0015] Furthermore, the positioning mechanism also includes a housing, a second rack, a second gear, and a knob. The housing is fixedly mounted on the guide seat. The second rack is fixedly mounted on the moving block via another guide rod, which passes through the housing. The second gear is rotatably mounted on the housing and meshes with the second rack. The knob is fixedly mounted on the second gear. By adjusting the position of the positioning plate using the second gear and the second rack, the grinding wheel can be positioned at different machining locations.

[0016] The beneficial effects of this utility model are as follows: This online compensation device for electrode wear in electrolytic grinding, through the setting of a moving mechanism, a compensation mechanism, and a positioning mechanism, can adjust the position of the grinding wheel in real time to compensate for wear when the grinding wheel electrode wears, through the elastic force of the spring. This improves the efficiency and precision of electrolytic grinding. In addition, through the setting of the positioning mechanism, the reference point of the compensation device can be adjusted according to different processing positions of the grinding wheel, so that it can be applied to electrolytic grinding in different processing positions, thereby improving the applicability and effectiveness of the compensation device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments of this utility model will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear view of the base structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the guide seat structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the unidirectional limiting mechanism of this utility model;

[0022] Figure 5 For the present utility model Figure 4 Enlarged structural diagram of section A;

[0023] Figure 6 For the present utility model Figure 1 Enlarged structural diagram of section B;

[0024] Figure 7 This is a schematic diagram of the main structure of the positioning mechanism of this utility model.

[0025] In the diagram: 1. Base; 2. Motor; 3. Grinding wheel; 4. Moving mechanism; 41. Guide seat; 42. Slide groove; 43. Mounting bracket; 44. Sliding seat; 45. Baffle; 46. One-way limit mechanism; 461. Gear 1; 462. Rack 1; 463. Electric telescopic rod; 464. Ratchet; 465. Cylinder; 466. Pawl; 467. Torsion spring; 468. Cylindrical block; 469. Arc shape 4610, Groove; 5, Compensation mechanism; 51, Telescopic rod; 52, Hinge rod; 53, Slider; 54, Cylindrical rod; 55, Spring; 56, Fixing block; 57, Hinge column; 58, Guide groove; 6, Positioning mechanism; 61, Moving block; 62, Positioning plate; 63, Ball bearing; 64, Guide rod; 65, Support block; 66, Housing; 67, Rack II; 68, Gear II; 69, Knob. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] Reference Figure 1 and Figure 2 The diagram illustrates an online compensation device for electrode wear in electrolytic grinding, comprising a base 1, a motor 2, a grinding wheel 3, a compensation mechanism 5, and a positioning mechanism 6. The motor 2 is slidably mounted on the base 1 via a moving mechanism 4. The movement of the motor 2 drives the grinding wheel 3 to feed towards the workpiece, thus compensating for electrode wear. The moving mechanism 4 limits the movement of the motor 2 to prevent it from shifting during movement. The grinding wheel 3 is fixedly mounted on the output shaft of the motor 2. Starting the motor 2 drives the grinding wheel 3 to rotate and grind the workpiece. The compensation mechanism 5 drives the motor 2 to move, enabling real-time online compensation when the grinding wheel 3 wears. The positioning mechanism 6 positions the grinding wheel 3, determining its processing position and serving as a reference position for the compensation mechanism 5.

[0029] Reference Figure 1 and Figure 2The compensation mechanism 5 includes a slider 53 and a fixed block 56. The slider 53 is slidably mounted on the fixed block 56 via a cylindrical rod 54, and the cylindrical rod 54 and the fixed block 56 are connected by a spring 55. Through the elastic force of the spring 55, the cylindrical rod 54 always moves the slider 53 in the direction of the machining position without the action of external force, thereby driving the grinding wheel 3 to feed towards the machining position and realizing online compensation. The fixed block 56 is fixedly mounted on the base 1 and is used to support the cylindrical rod 54.

[0030] Reference Figure 1 and Figure 2 The compensation mechanism 5 also includes a hinge rod 52. The base 1 and the moving mechanism 4 are hinged together by a telescopic rod 51. The telescopic rod 51 is existing technology and has the functions of extension and retraction. The rotation of the telescopic rod 51 can drive the moving mechanism 4 to move. One end of the hinge rod 52 is hinged to the slider 53, and the other end of the hinge rod 52 is hinged to the telescopic rod 51 through a hinge post 57. The movement of the slider 53 can drive the hinge rod 52 and the hinge post 57 to move, causing the telescopic rod 51 to rotate. A guide groove 58 is provided on the base 1. The slider 53 is slidably connected to the guide groove 58. The guide groove 58 guides the slider 53 to prevent the slider 53 from deviating during movement.

[0031] Reference Figure 2 and Figure 3 The moving mechanism 4 includes a guide seat 41 and a mounting frame 43. The guide seat 41 is fixedly mounted on the base 1, and a sliding groove 42 is provided on the guide seat 41. The guide seat 41 and the sliding groove 42 guide the sliding seat 44 to prevent the mounting frame 43 from shifting during movement. The mounting frame 43 is fixedly mounted on the motor 2, and the mounting frame 43 is slidably connected to the sliding seat 44 and the sliding groove 42. The movement of the sliding seat 44 can drive the mounting frame 43 to move, thereby driving the motor 2 to move. The moving mechanism 4 also includes a baffle 45 and a one-way limiting mechanism 46. The baffle 45 is fixedly installed on the sliding seat 44. The mounting frame 43 is hinged to the telescopic rod 51. The rotation of the telescopic rod 51 can drive the mounting frame 43 to move. The one-way limiting mechanism 46 is used to limit the sliding seat 44 in one direction. By limiting the sliding seat 44 in one direction, the sliding seat 44 can only move in the direction of the processing position, thus preventing the grinding wheel 3 from retracting during processing.

[0032] Reference Figure 3 and Figure 4The one-way limiting mechanism 46 includes a gear 461, a rack 462, and a cylinder 465. The gear 461 is rotatably mounted on the cylinder 465 via a ratchet 464, and the cylinder 465 is fixedly mounted on the bottom of the sliding seat 44. The movement of the sliding seat 44 can drive the cylinder 465 to move, thereby driving the ratchet 464 and the gear 461 to move. The rack 462 is slidably mounted on the inner side of the slide groove 42, and the rack 462 meshes with the gear 461. When the gear 461 meshes with the rack 462, the movement of the gear 461 will drive the ratchet 464 to rotate.

[0033] Reference Figures 4 to 6 The one-way limiting mechanism 46 also includes an electric telescopic rod 463 and a pawl 466. The electric telescopic rod 463 is fixedly installed on the guide seat 41, and the output end of the electric telescopic rod 463 is fixedly connected to the rack 462. By activating the electric telescopic rod 463, the rack 462 can be moved, thereby enabling the rack 462 to mesh or disengage with the gear 461. A groove 4610 is provided on the cylinder 465, and an arc-shaped groove 469 is provided in the groove 4610. Through the arc-shaped groove 469, the pawl can be used to... Pad 466 serves as a limit switch. Pad 466 is rotatably mounted in groove 4610, and is connected to groove 4610 by torsion spring 467. Through the elastic force of torsion spring 467, pad 466 remains engaged with ratchet 464 without external force. Pad 466 is slidably connected to arc groove 469 via cylindrical block 468, and is engaged with ratchet 464. Through the engagement effect of pad 466 and ratchet 464, ratchet 464 and gear 461 are unidirectionally limited.

[0034] Reference Figure 2 and Figure 7 The positioning mechanism 6 includes a movable block 61, a positioning plate 62, a ball bearing 63, and a support block 65. The movable block 61 is slidably mounted on the support block 65 via a guide rod 64, and the support block 65 is fixedly mounted on the guide seat 41. The guide rod 64 guides the movable block 61 to prevent it from shifting during movement. The positioning plate 62 is fixedly mounted on the movable block 61. The movement of the movable block 61 drives the positioning plate 62 to move, thereby adjusting the position of the positioning plate 62. The ball bearing 63 is fixedly mounted on the positioning plate 62. The positioning plate 62 positions the grinding wheel 3. The ball bearing 63 reduces the friction between the positioning plate 62 and the grinding wheel 3.

[0035] Reference Figure 2 and Figure 7The positioning mechanism 6 also includes a housing 66, a rack 67, a gear 68, and a knob 69. The housing 66 is fixedly mounted on the guide seat 41. The rack 67 is fixedly mounted on the moving block 61 via another guide rod 64, which passes through the housing 66. The movement of the rack 67 can drive the other guide rod 64 to move, thereby moving the moving block 61. The gear 68 is rotatably mounted on the housing 66 and meshes with the rack 67. The rotation of the gear 68 can drive the rack 67 to move, thereby moving the moving block 61. The knob 69 is fixedly mounted on the gear 68, allowing the operator to easily rotate the gear 68.

[0036] Reference Figures 1 to 7 This online compensation device for electrode wear in electrolytic grinding, through its moving mechanism, compensation mechanism, and positioning mechanism, can adjust the position of the grinding wheel in real time to compensate for wear when the grinding wheel electrode wears, using the elastic force of a spring. This improves the efficiency and precision of electrolytic grinding. In addition, the positioning mechanism can adjust the reference point of the compensation device according to different processing positions of the grinding wheel, making it applicable to electrolytic grinding at different processing positions and thus improving the applicability and effectiveness of the compensation device.

[0037] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. An online compensation device for electrode wear in electrolytic grinding, characterized in that, The device includes a base (1), a motor (2), a grinding wheel (3), a compensation mechanism (5), and a positioning mechanism (6). The motor (2) is slidably mounted on the base (1) via a moving mechanism (4). The moving mechanism (4) is used to limit the movement of the motor (2). The grinding wheel (3) is fixedly mounted on the output shaft of the motor (2). The compensation mechanism (5) is used to drive the motor (2) to move. The positioning mechanism (6) is used to position the grinding wheel (3). The compensation mechanism (5) includes a slider (53) and a fixing block (56). The slider (53) is slidably mounted on the fixing block (56) via a cylindrical rod (54), and the cylindrical rod (54) and the fixing block (56) are connected by a spring (55). The fixing block (56) is fixedly mounted on the base (1).

2. The online compensation device for electrode wear in electrolytic grinding according to claim 1, characterized in that, The compensation mechanism (5) further includes a hinge rod (52). The base (1) and the moving mechanism (4) are hinged together by a telescopic rod (51). One end of the hinge rod (52) is hinged to the slider (53), and the other end of the hinge rod (52) is hinged to the telescopic rod (51) through a hinge column (57). A guide groove (58) is provided on the base (1), and the slider (53) is slidably connected to the guide groove (58).

3. The online compensation device for electrode wear in electrolytic grinding according to claim 2, characterized in that, The moving mechanism (4) includes a guide seat (41) and a mounting bracket (43). The guide seat (41) is fixedly installed on the base (1), and a sliding groove (42) is provided on the guide seat (41). The mounting bracket (43) is fixedly installed on the motor (2), and the mounting bracket (43) is slidably connected to the sliding groove (42) through a sliding seat (44).

4. The online compensation device for electrode wear in electrolytic grinding according to claim 3, characterized in that, The moving mechanism (4) also includes a baffle (45) and a one-way limiting mechanism (46). The baffle (45) is fixedly installed on the sliding seat (44). The mounting bracket (43) is hinged to the telescopic rod (51). The one-way limiting mechanism (46) is used to limit the sliding seat (44) in one direction.

5. The online compensation device for electrode wear in electrolytic grinding according to claim 4, characterized in that, The one-way limiting mechanism (46) includes a gear (461), a rack (462) and a cylinder (465). The gear (461) is rotatably mounted on the cylinder (465) via a ratchet (464), and the cylinder (465) is fixedly mounted on the bottom of the sliding seat (44). The rack (462) is slidably mounted on the inner side of the slide groove (42), and the rack (462) meshes with the gear (461).

6. The online compensation device for electrode wear in electrolytic grinding according to claim 5, characterized in that, The one-way limiting mechanism (46) further includes an electric telescopic rod (463) and a pawl (466). The electric telescopic rod (463) is fixedly installed on the guide seat (41), and the output end of the electric telescopic rod (463) is fixedly connected to the rack (462). A groove (4610) is provided on the cylinder (465), and an arc groove (469) is provided in the groove (4610). The pawl (466) is rotatably installed in the groove (4610), and the pawl (466) and the groove (4610) are connected by a torsion spring (467). The pawl (466) is slidably connected to the arc groove (469) through a cylindrical block (468), and the pawl (466) is engaged with the ratchet (464).

7. The online compensation device for electrode wear in electrolytic grinding according to claim 3, characterized in that, The positioning mechanism (6) includes a moving block (61), a positioning plate (62), a ball bearing (63), and a support block (65). The moving block (61) is slidably mounted on the support block (65) via a guide rod (64), and the support block (65) is fixedly mounted on the guide seat (41). The positioning plate (62) is fixedly mounted on the moving block (61), and the ball bearing (63) is fixedly mounted on the positioning plate (62).

8. The online compensation device for electrode wear in electrolytic grinding according to claim 7, characterized in that, The positioning mechanism (6) further includes a housing (66), a rack (67), a gear (68), and a knob (69). The housing (66) is fixedly mounted on the guide seat (41). The rack (67) is fixedly mounted on the moving block (61) through another guide rod (64), and the other guide rod (64) passes through the housing (66). The gear (68) is rotatably mounted on the housing (66), and the gear (68) meshes with the rack (67). The knob (69) is fixedly mounted on the gear (68).

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