Lifting tool for external cylindrical grinder

Abstract

The utility model discloses a kind of lifting tool for cylindrical grinder, it is related to cylindrical grinder technical field, including mounting seat, mounting seat top is set slider, support rod, mounting plate and support block by installation shell, two-way screw is also rotationally arranged in installation shell interior, first bevel gear is set by mounting shaft in installation shell interior, second bevel gear is also set by key connection on two-way screw, second bevel gear and first bevel gear are mutually engaged, worm is also rotationally arranged in installation shell interior, worm and worm wheel are mutually engaged.The utility model adopts worm and worm gear and two-way screw transmission system of servo motor drive, combine bevel gear reversing mechanism, the high-precision synchronous lifting of support block is realized, the self-locking characteristic of worm and worm gear effectively prevents height drift in processing process, the thread connection of two-way screw ensures left and right slider movement consistency, significantly improve the precision and stability of workpiece lifting, satisfy micron level processing demand of cylindrical grinding.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical grinding machine technology, specifically a lifting fixture for cylindrical grinding machines. Background Technology

[0002] In the field of machining, external cylindrical grinding machines, as precision machining equipment, have extremely high requirements for workpiece clamping accuracy and stability.

[0003] Existing tooling relies heavily on manual lead screws or hydraulic cylinders for height adjustment, lacking precision transmission mechanisms and closed-loop control. This results in significant lifting height errors, making it difficult to meet the micron-level machining requirements of high-precision cylindrical grinding. Furthermore, manual operation is inefficient and prone to human error, leading to adjustment deviations. Traditional tooling typically employs single-sided fixing or mechanical clamping structures, which are susceptible to workpiece misalignment and vibration during machining. This is particularly problematic when machining slender shaft parts, where insufficient clamping force can cause workpiece bending and deformation, directly impacting machining accuracy and surface quality. Existing tooling lacks multi-axis linkage and electric drive designs, failing to achieve synchronized automated lifting and clamping operations. This results in cumbersome and time-consuming clamping processes, making it difficult to meet the high-efficiency machining demands of modern production lines. Simultaneously, manual adjustment requires highly skilled operators, increasing labor costs and training difficulties. Some tooling uses ordinary threaded drives or hydraulic locking methods, which are prone to height drift under machining vibrations or external impacts, and lack overload protection mechanisms, making them susceptible to workpiece or equipment damage due to misoperation or equipment malfunction. Therefore, we propose a lifting tooling for cylindrical grinding machines. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting fixture for an external cylindrical grinding machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lifting fixture for an external cylindrical grinding machine includes a mounting base. A mounting shell is mounted on the top of the mounting base. Two sliders, left and right, are slidably mounted on the mounting shell. A support rod is hinged to the top of each slider. A mounting plate is hinged to the top end of the support rod. A support block is mounted on the top of the mounting plate. A bidirectional screw is rotatably mounted inside the mounting shell, passing through and threadedly connected to both sliders. A mounting shaft is rotatably mounted inside the mounting shell, with a first bevel gear keyed to the mounting shaft. A second bevel gear is keyed to the bidirectional screw, meshing with the first bevel gear. A worm gear is rotatably mounted inside the mounting shell, meshing with a worm wheel.

[0007] As a further embodiment of this utility model: a mounting block is fixedly installed on one side of the top of the mounting base, and a mounting block is slidably installed on the other side of the top of the mounting base via a sliding plate.

[0008] As a further improvement of this utility model: a second electric push rod is also provided inside the mounting base, and the end of the telescopic arm of the second electric push rod is connected to the mounting block on the other side.

[0009] As a further improvement of this utility model: a servo motor is also provided on the outer wall of the mounting housing, and the power output shaft of the servo motor is connected to the worm gear through a coupling.

[0010] As a further improvement of this utility model, the mounting block is also provided with a clamping block via a first electric push rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The worm gear and bidirectional screw transmission system driven by a servo motor, combined with a bevel gear reversing mechanism, realizes high-precision synchronous lifting of the support block. The self-locking characteristic of the worm gear effectively prevents height drift during the processing, and the threaded connection of the bidirectional screw ensures the consistency of the movement of the left and right sliders, significantly improving the accuracy and stability of workpiece lifting and meeting the micron-level processing requirements of external cylindrical grinding.

[0013] 2. The spacing of the mounting blocks is adjusted by the cooperation of the second electric push rod and the slide rail. Combined with the independent drive of the clamping block by the first electric push rod, a multi-axis linkage clamping mechanism is formed, which can quickly adapt to the clamping requirements of workpieces of different sizes. The clamping force is dynamically adjusted by the precise control of the electric push rod, which effectively avoids processing vibration and workpiece displacement, and greatly improves clamping efficiency and processing reliability. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of the mounting shell in an embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the mounting base in an embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure at point A in an embodiment of this utility model.

[0018] Reference numerals in the attached drawings: 1. Mounting base; 2. Mounting shell; 3. Slider; 4. Support rod; 5. Mounting plate; 6. Support block; 7. Bidirectional screw; 8. Mounting shaft; 9. First bevel gear; 10. Second bevel gear; 11. Worm gear; 12. Worm; 1201. Servo motor; 13. Mounting block; 14. First electric push rod; 15. Clamping block; 16. Slide plate; 17. Second electric push rod. Detailed Implementation

[0019] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings and description, similar or identical parts are referred to by the same reference numerals. Furthermore, in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of the utility model. Any obvious modifications or alterations made to this utility model do not depart from its spirit and scope.

[0020] Example

[0021] Please see Figures 1-4 In this embodiment of the utility model, a lifting fixture for an external cylindrical grinding machine includes a mounting base 1, a mounting shell 2 on the top of the mounting base 1, two sliding blocks 3 slidably mounted on the mounting shell 2, a support rod 4 hinged to the top of the sliding blocks 3, a mounting plate 5 hinged to the top end of the support rod 4, and a support block 6 on the top of the mounting plate 5. Under the action of the support block 6, the material can be supported, thereby realizing the lifting of the material. A bidirectional screw 7 is also rotatably mounted inside the mounting shell 2. The bidirectional screw 7 passes through the two sliding blocks 3 and is threadedly connected to the two sliding blocks 3. At this time, rotating the bidirectional screw 7 can drive the two sliding blocks 3 to move closer or further away, thereby lifting the material through the mounting plate 5.

[0022] The mounting housing 2 also has a rotating mounting shaft 8 inside, with a first bevel gear 9 connected to the mounting shaft 8 via a key. A second bevel gear 10 is also connected to the bidirectional screw 7 via a key. The second bevel gear 10 meshes with the first bevel gear 9. Rotating the mounting shaft 8 will drive the bidirectional screw 7 to rotate via the first bevel gear 9 and the second bevel gear 10, thereby lifting the material. A worm gear 11 is also connected to the mounting shaft 8 via a key. A worm 12 is also rotating inside the mounting housing 2, meshing with the worm gear 11. Rotating the worm 12 will drive the mounting shaft 8 to rotate via the worm gear 11. Furthermore, because the worm gear 11 and worm 12 have a self-locking function, the height of the support block 6 after adjustment can be limited, thus ensuring the efficiency of the device. A servo motor 1201 is also installed on the outer wall of the mounting housing 2. The power output shaft of the servo motor 1201 is connected to the worm 12 via a coupling. The servo motor 1201 can then drive the worm 12 to rotate.

[0023] A mounting block 13 is fixedly installed on one side of the top of the mounting base 1, and a mounting block 13 is slidably installed on the other side of the top of the mounting base 1 via a sliding plate 16. A second electric push rod 17 is also provided inside the mounting base 1. The end of the telescopic arm of the second electric push rod 17 is connected to the mounting block 13 on the other side. At this time, the second electric push rod 17 can drive the mounting block 13 on the other side to connect. A clamping block 15 is also provided on the mounting block 13 via a first electric push rod 14. Under the action of the clamping block 15, both ends of the material can be clamped and fixed, thereby improving the fixing quality of the material by the device and ensuring the efficiency of the device.

[0024] In actual use, a bidirectional screw 7 is rotatably mounted inside the mounting housing 2, with its two ends connected to the left and right sliders 3 via threads. When the servo motor 13 starts, its power output shaft drives the worm gear 12 to rotate via a coupling. The worm gear 12 meshes with the worm wheel 11, driving the mounting shaft 8 to rotate synchronously. The mounting shaft 8 meshes with the second bevel gear 10 on the bidirectional screw 7 via a keyed first bevel gear 9, converting the rotational motion into linear drive of the bidirectional screw. When the bidirectional screw 7 rotates, the left and right sliders 3 slide towards or away from each other along the slide rail. Through the hinged support rod 4 and the mounting plate 5, the support block 6 is linked to achieve synchronous lifting and lowering, completing the lifting or lowering action of the material. The self-locking characteristic of the worm gear can lock the height of the support block, ensuring processing stability. The mounting shaft 8, as the core transmission shaft, has its two ends connected to the first bevel gear 9 and the worm wheel 11 via keys, respectively. When the worm gear 1 is driven by the servo motor, the worm wheel 11 drives the mounting shaft 8 to rotate, and transmits the power to the bidirectional screw 7 through the second bevel gear 10. The bevel gear set design realizes 90° power reversal, which transforms the horizontal rotation of the worm gear into the vertical drive of the bidirectional screw, ensuring the linear motion accuracy of the slider 3. Fixed mounting blocks and sliding mounting blocks are respectively set on the top two sides of the mounting base 1. The telescopic arm of the second electric push rod 17 is connected to the sliding mounting block. The distance between the two mounting blocks is adjusted by the telescopic movement. Each mounting block is equipped with a clamping block 15 through the first electric push rod 14. When the material is placed on the support block 6, the second electric push rod 17 drives the sliding mounting block to move to the predetermined position. Then, the first electric push rods 14 on both sides extend synchronously, so that the clamping blocks 15 press the two ends of the material, realizing the axial fixation of the material and avoiding offset or vibration during the processing.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lifting fixture for an external cylindrical grinding machine, comprising a mounting base (1), characterized in that, The mounting base (1) is provided with a mounting shell (2) on top. Two sliders (3) are slidably mounted on the mounting shell (2). A support rod (4) is hinged to the top of the slider (3). A mounting plate (5) is hinged to the top end of the support rod (4). A support block (6) is provided on the top of the mounting plate (5). A bidirectional screw (7) is rotatably mounted inside the mounting shell (2). The bidirectional screw (7) passes through the two sliders (3) and is threadedly connected to the two sliders (3). An mounting shaft (8) is rotatably mounted inside the mounting shell (2). A first bevel gear (9) is connected to the mounting shaft (8) by a key. A second bevel gear (10) is connected to the bidirectional screw (7) by a key. The second bevel gear (10) meshes with the first bevel gear (9). A worm gear (12) is rotatably mounted inside the mounting shell (2). The worm gear (12) meshes with the worm wheel (11).

2. The lifting fixture for an external cylindrical grinding machine according to claim 1, characterized in that, A mounting block (13) is fixedly installed on one side of the top of the mounting base (1), and a mounting block (13) is slidably installed on the other side of the top of the mounting base (1) via a sliding plate (16).

3. The lifting fixture for an external cylindrical grinding machine according to claim 2, characterized in that, The mounting base (1) is also provided with a second electric push rod (17), and the end of the telescopic arm of the second electric push rod (17) is connected to the mounting block (13) on the other side.

4. The lifting fixture for an external cylindrical grinding machine according to claim 1, characterized in that, A servo motor (1201) is also provided on the outer wall of the mounting housing (2), and the power output shaft of the servo motor (1201) is connected to the worm gear (12) through a coupling.

5. The lifting fixture for an external cylindrical grinding machine according to claim 2, characterized in that, The mounting block (13) is also equipped with a clamping block (15) via a first electric push rod (14).

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