Simple anti-seismic static balancing stand

Abstract

The utility model provides a simple and shock-resistant static balancing stand, which mainly aims to improve the accuracy of static unbalance detection of a grinding wheel by effectively isolating external shock in a factory environment and further improve the production qualification rate. The device comprises a working table, two parallel sliding grooves are formed in the working table, two height coarse adjustment devices are arranged on each sliding groove in a sliding fit mode, and a height fine adjustment device, a damping device and a guide rail device are sequentially arranged at the upper end of each height coarse adjustment device. Two width adjusting devices connected with the two height coarse adjusting devices correspondingly are further arranged below the sliding groove. The utility model relates to the technical field of rotating member static balance detection.

Description

Technical Field

[0001] The utility model relates to the technical field of static balance detection of rotating parts, in particular to a simple earthquake-resistant static balance frame. Background Art

[0002] In the field of machining and manufacturing, a static balance frame is a key device for evaluating whether a rotating body such as a grinding wheel reaches a static balance state. Through the static balance frame, the static unbalance of the grinding wheel can be detected and adjusted, so as to ensure the stability and service life of the grinding wheel during use.

[0003] However, in a factory environment, due to the operation of other large equipment or machinery, vibrations are often generated. These vibrations interfere with the accurate measurement of the static balance frame and affect the accurate evaluation of the static unbalance of the grinding wheel. The traditional design of the static balance frame does not fully consider this unique vibration environment in the factory. Therefore, in practical applications, the accuracy and reliability of its measurement results are often questioned.

[0004] In view of this problem, it is particularly important to develop a simple earthquake-resistant static balance frame that can adapt to the factory vibration environment and maintain the measurement accuracy. This new type of static balance frame needs to be able to effectively isolate or reduce the influence of external vibrations on the measurement results, so as to provide more accurate and reliable data in the detection of the static unbalance of the grinding wheel. This can not only improve the quality of grinding wheel manufacturing and maintenance, but also ensure the safety and stability of various machines using the grinding wheel during operation. Summary of the Utility Model

[0005] To achieve the above object, the utility model provides a simple earthquake-resistant static balance frame, and its main purpose is to improve the accuracy of detecting the static unbalance of the grinding wheel by effectively isolating the external vibrations in the factory environment, thereby improving the production qualification rate.

[0006] The technical solution adopted by the utility model is: a simple earthquake-resistant static balance frame, including a workbench, two parallel chutes are arranged on the workbench, two height rough adjustment devices are slidably matched on each chute, a height fine adjustment device, a shock absorption device and a guide rail device are sequentially arranged at the upper end of the height rough adjustment device, and two groups of width adjustment devices respectively connected to the two groups of height rough adjustment devices are also arranged below the chute.

[0007] Based on the above, the height coarse adjustment device and the width adjustment device can adjust the spatial position of the guide rail device to adapt to grinding wheels of different sizes for static unbalance detection; the sliding groove enables the adjustment of the guide rail device to be smoother; since the levelness of the slide rail is very important when detecting the static unbalance degree, the height fine adjustment device is essential; the setting of the shock absorption device enables the static balance stand to offset the tiny vibration influence from the external environment, thereby ensuring that the static unbalance test of the grinding wheel is more accurate and improving the qualification rate of grinding wheel production and manufacturing.

[0008] Further, the height coarse adjustment device includes a telescopic hydraulic cylinder, and the telescopic hydraulic cylinder further includes a booster lever and a pressure relief knob. The output end of the telescopic hydraulic cylinder is fixedly connected to the lower bottom surface of the fine adjustment device. An adjustment slider is also provided at the bottom of the telescopic hydraulic cylinder, and the adjustment slider is slidably matched in the sliding groove.

[0009] Based on the above, the booster lever is the key to raising the height coarse adjustment device. At the same time, the use of the telescopic hydraulic cylinder can further provide an earthquake resistance effect; the pressure relief knob can make it slowly lower when adjusting the height of the guide rail device; the adjustment slider ensures a good sliding fit between the height coarse adjustment device and the sliding groove.

[0010] Further, the height fine adjustment device includes a gear reduction box and a lifting platform provided on the gear reduction box, and a fine adjustment knob is also provided on the gear reduction box.

[0011] Based on the above, the gear reduction box can be set with a large gear ratio to achieve the effect of height fine adjustment, and the fine adjustment knob is the key to controlling the guide rail device to maintain horizontal.

[0012] Further, the shock absorption device is composed of two spring shock absorbers. The upper end and the lower end of the spring shock absorber are respectively fixedly connected to the bottom surface of the guide rail and the top surface of the lifting platform and are arranged in a triangular shape.

[0013] Based on the above, the spring shock absorber can bring the most intuitive and obvious shock absorption effect to the static balance stand. At the same time, the two spring shock absorbers are connected in a triangular shape, which can make the guide rail device more stable, further ensuring the reliability and accuracy of the static unbalance degree detection of the grinding wheel.

[0014] Further, the setting direction of the guide rail device is perpendicular to the setting direction of the sliding groove and the number of settings is two. The guide rail device includes a guide rail V-block and a columnar guide rail provided on the guide rail V-block. The two ends of the bottom of each columnar guide rail are respectively connected to the two shock absorption devices, and anti-falling blocks are also provided at both ends of the columnar guide rail.

[0015] Based on the above, the common shapes of the guide rails include knife-edge shape, prism shape, and cylindrical shape. Since the spring shock absorber is introduced in the present utility model, in order to better ensure that the center of the guide rail does not shift when detecting the static unbalance of the grinding wheel, the columnar guide rail is adopted. In addition, the setting of the anti-falling block can prevent the grinding wheel from accidentally falling during the measurement of static unbalance, ensuring the working reliability of the static balance stand.

[0016] Further, each group of the width adjusting devices includes an adjusting screw fixed under the workbench. The adjusting screw is perpendicular to the setting direction of the sliding groove and one end thereof penetrates out of the side surface of the workbench. Two threaded sleeves are in threaded cooperation with the adjusting screw. Both sides of each threaded sleeve are hinged with scissor arms, and the other ends of the scissor arms located on both sides are hinged with the lower end of the adjusting slider.

[0017] Based on the above, the adjusting screw, the threaded sleeve, and the scissor arm constitute a scissor-type telescopic mechanism. By rotating the adjusting screw, the height coarse adjustment device can synchronously adjust the width.

[0018] Further, one end of the adjusting screw extending out of the workbench is provided with a square boss, and the opposite end is provided with a smooth shaft boss. A toothed boss is provided at the end of the smooth shaft boss. The axes of the adjusting screws of each group of the width adjusting devices are located on the same horizontal line, and a coupling sleeve is also provided between the two toothed bosses. The length of the coupling sleeve is less than the length of the smooth shaft boss.

[0019] Based on the above, the square boss can cooperate with a common matching hand crank, which is convenient for the operator to rotate the adjusting screw to adjust the width between the guide rail assemblies. The design of the toothed boss and the coupling sleeve is equivalent to a coupling. When performing the operation of aligning the guide rail device, the coupling sleeve is dialed to the smooth shaft boss. After alignment, the coupling sleeve is dialed between the two toothed bosses to realize the synchronous adjustment of the two width adjustment devices.

[0020] In order to more clearly elaborate the above features of the present utility model and the purposes to be achieved, the following further describes the present utility model in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0021] Figure 1 : is the axonometric view of the present utility model;

[0022] Figure 2 : is the bottom view of the present utility model;

[0023] Figure 3 : is the front view of the present utility model;

[0024] Figure 4: Side view of the present utility model;

[0025] Figure 5 : Structural schematic diagram of the present utility model.

[0026] Explanation of reference numerals in the attached drawings: 1 - Workbench; 11 - Slide groove; 2 - Coarse height adjustment device; 3 - Fine height adjustment device; 4 - Shock absorption device; 5 - Guide rail device; 6 - Width adjustment device; 21 - Telescopic hydraulic cylinder; 22 - Boosting lever; 23 - Pressure relief knob; 24 - Adjusting slider; 31 - Gear reduction box; 32 - Lifting platform; 33 - Fine adjustment knob; 41 - Spring shock absorber; 51 - Guide rail V-block; 52 - Columnar guide rail; 53 - Anti-falling block; 61 - Adjusting screw; 62 - Threaded sleeve; 63 - Scissor arm; 64 - Square boss; 65 - Optical axis boss; 66 - Tooth-shaped boss; 67 - Coupling sleeve. Specific implementation manner

[0027] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific implementation manner of the present utility model will now be described with reference to the accompanying drawings.

[0028] As Figure 1 and Figure 2 shown, the present utility model provides a simple anti-seismic static balance stand, which includes a workbench 1. Two parallel slide grooves 11 are provided on the workbench 1. Two coarse height adjustment devices 2 are slidably fitted on each of the slide grooves 11. The upper ends of the coarse height adjustment devices 2 are sequentially provided with a fine height adjustment device 3, a shock absorption device 4, and a guide rail device 5. A width adjustment device 6 connected to the two groups of coarse height adjustment devices 2 respectively is further provided below the slide groove 1. In this embodiment, the spatial position of the guide rail device 5 is adjusted by the width adjustment device 6 and the coarse height adjustment device 2, so as to adapt to static unbalance tests of grinding wheels of different sizes. The function of the fine height adjustment device 3 is to level the guide rail device 5, because the levelness is crucial for the detection of the static unbalance degree of the grinding wheel.

[0029] As Figure 1 shown, further, the coarse height adjustment device 2 includes a telescopic hydraulic cylinder 21. The telescopic hydraulic cylinder 21 further includes a boosting lever 22 and a pressure relief knob 23. The output end of the telescopic hydraulic cylinder 21 is fixedly connected to the lower bottom surface of the fine height adjustment device 3. An adjusting slider 24 is further provided at the bottom of the telescopic hydraulic cylinder 21. When it is necessary to adjust the height of the guide rail device 5, the operator pumps oil into the telescopic hydraulic cylinder 21 through the boosting lever 22 or slowly releases the hydraulic oil through the pressure relief knob 23. During use, the operator visually raises and lowers the guide rail assembly 5 to a specified height and close to horizontal. The adjusting slider 24 is fixed to the bottom of the telescopic hydraulic cylinder 21 by bolts and works with the width adjustment device 6 to achieve the width adjustment function.

[0030] As Figure 3As shown in the figure, further, the height fine-tuning device 3 includes a gear reduction box 31 and a lifting platform 32 disposed on the gear reduction box 31. A fine-tuning knob 33 is also provided on the gear reduction box 31. In this embodiment, four fixed screws are disposed around the lifting platform 32. By an operator adjusting the fine-tuning knob 33, the movement of the lifting platform 32 is controlled through the synchronous transmission of the gear train to a threaded sleeve that cooperates with the screw. It is worth noting that the total stroke of the lifting platform 32 is greater than or equal to the stroke of the telescopic hydraulic cylinder 21 for one oil pumping.

[0031] As Figure 4 shown in the figure, further, the shock absorption device 4 is composed of two spring shock absorbers 41. The upper and lower ends of the spring shock absorbers 41 are respectively fixedly connected to the bottom surface of the guide rail device 5 and the top surface of the lifting platform 32 and are arranged in a triangular shape. It is found in actual detection that when only one spring shock absorber 41 is used for each shock absorption device 4, the fulcrums among the guide rail device 5, the shock absorption device 4, and the lifting platform 32 form a parallelogram structure. After changing to use two spring shock absorbers 41, the overall stability of the device is significantly improved.

[0032] As Figure 4 shown in the figure, further, the setting direction of the guide rail device 5 is perpendicular to the setting direction of the chute 11 and the number of settings is two. The guide rail device 5 includes a guide rail V-block 51 and a columnar guide rail 52 disposed on the guide rail V-block 51. Both ends of the bottom of the two guide rail V-blocks 51 are fixedly connected to the shock absorption device 4. Anti-falling blocks 53 are also provided at both ends of the columnar guide rail 52. The bottom end of the guide rail V-block 51 is fixedly connected to the spring shock absorber 41 by bolts. The guide rail V-block 51 and the columnar guide rail 52 are permanently connected by welding. The anti-falling blocks 53 are fixedly connected to the columnar guide rail 52 by an adhesive.

[0033] As Figure 2 shown in the figure, further, the width adjustment device 6 includes an adjustment screw 61 fixed under the workbench 1. The adjustment screw 61 has the same setting direction as the guide rail device 5 and one end passes through the side surface of the workbench 1. Two threaded sleeves 62 are threadedly engaged with the adjustment screw 61. Both ends of the threaded sleeve 62 are hinged with a scissors arm 63. The other ends of the two-side scissors arms 63 are both hinged with the lower end of the adjustment slider 24. The design of the adjustment screw 61, the threaded sleeve 62, and the scissors arm 63 is intended to provide a scissors structure, and the rotational movement of simply rotating the adjustment screw 61 is converted into the synchronous linear displacement of the height coarse adjustment device 2.

[0034] As Figure 5As shown in the figure, further, one end of the adjusting screw 61 extending out of the workbench 1 is provided with a square boss 64 and the other end is provided with a smooth shaft boss 65. A toothed boss 66 is provided at the end of the smooth shaft boss 65. The axes of the two adjusting screws 61 are located on the same horizontal line and a coupling sleeve 67 is also provided between the two toothed bosses 66. The length of the coupling sleeve 67 is less than the length of the smooth shaft boss 65. In order to ensure the synchronous adjustment of the width of the guide rail device 5, it is necessary to make the two sets of width adjusting devices 6 move synchronously. Therefore, the coupling sleeve 67 is introduced. However, during assembly or improper use, it may cause the misalignment of the two sets of height rough adjustment devices 2. In order to eliminate this error, the two sets of width adjustment devices 6 can be adjusted separately by removing the coupling sleeve 67. In addition, the square boss 64 is adapted to the hand rocker on the market. Therefore, the adjusting screw 61 can be operated by the hand rocker.

[0035] The specific working mode of the present utility model is as follows:

[0036] First, correctly assemble the static balance frame, move the coupling sleeve 67 to the smooth shaft boss 65. The operator operates the square boss 64 with a hand rocker to make the width adjusting device 6 drive the height rough adjustment device 2 to be centered and aligned. At this time, move the coupling sleeve 67 to the gear boss 66 to make the two sets of width adjusting devices move synchronously. Secondly, according to the size of the grinding wheel to be detected, adjust the width adjusting device 6 and the height rough adjustment device 2 to the set positions. After the operator visually observes that the columnar guide rail 52 is close to horizontal, start to adjust the height fine adjustment device 3 and use a level to further confirm the levelness of the columnar guide rail 52. Finally, install an auxiliary mandrel at the center of the grinding wheel to be detected, vertically place the auxiliary mandrel on the columnar guide rail 52, and roll the grinding wheel to one side. If the grinding wheel can remain stationary at any position, it means that the grinding wheel meets the production requirements.

[0037] The above is only the optimal solution embodiment of the present utility model and is not used to limit the present utility model. Various modifications or substitutions made by those skilled in the art to the present utility model without departing from the essence and protection scope of the present utility model should also be within the protection scope of the present utility model.

Claims

1. A simple earthquake-resistant static balance frame, comprising a workbench (1), characterized in that: Two parallel sliding grooves (11) are provided on the workbench (1), Two height coarse adjustment devices (2) are slidably fitted on each of the sliding grooves (11), A height fine adjustment device (3), a shock absorption device (4) and a guide rail device (5) are sequentially arranged at the upper end of the height coarse adjustment device (2), Two width adjustment devices (6) respectively connected to the two groups of height coarse adjustment devices (2) are further provided below the sliding grooves (11).

2. The simple earthquake-resistant static balance frame according to claim 1, characterized in that: The height coarse adjustment device (2) includes a telescopic hydraulic cylinder (21), The telescopic hydraulic cylinder (21) further includes a supercharging lever (22) and a pressure relief knob (23), The output end of the telescopic hydraulic cylinder (21) is fixedly connected to the lower bottom surface of the height fine adjustment device (3), and an adjustment slider (24) is further provided at the bottom of the telescopic hydraulic cylinder (21), The adjustment slider (24) is slidably fitted in the sliding groove (11).

3. The simple earthquake-resistant static balance frame according to claim 1, characterized in that: The height fine adjustment device (3) includes a gear reduction box (31) and a lifting platform (32) provided on the gear reduction box (31), A fine adjustment knob (33) is further provided on the gear reduction box (31).

4. The simple earthquake-resistant static balance frame according to claim 3, characterized in that: The shock absorption device (4) is composed of two spring shock absorbers (41), The upper end and the lower end of the spring shock absorber (41) are respectively fixedly connected to the bottom surface of the guide rail device (5) and the top surface of the lifting platform (32) and are arranged in a triangular shape.

5. The simple earthquake-resistant static balance frame according to claim 4, characterized in that: The setting direction of the guide rail device (5) is perpendicular to the setting direction of the sliding groove (11) and the number of settings is two, The guide rail device (5) includes a guide rail V-block (51) and a columnar guide rail (52) provided on the guide rail V-block (51), The two ends of the bottom of each columnar guide rail (52) are respectively connected to the two shock absorption devices (4), and anti-falling blocks (53) are further provided at both ends of the columnar guide rail (52).

6. The simple earthquake-resistant static balance frame according to claim 2, characterized in that: Each group of width adjustment devices (6) includes an adjustment screw (61) fixed below the workbench (1), The adjustment screw (61) is perpendicular to the setting direction of the sliding groove (11) and one end penetrates out of the side surface of the workbench (1), Two threaded sleeves (62) are threadedly fitted on the adjustment screw (61), Scissor arms (63) are hinged on both sides of each threaded sleeve (62), The other ends of the scissor arms (63) located on both sides are respectively hinged to the lower end of the adjustment slider (24).

7. The simple earthquake-resistant static balance frame according to claim 6, characterized in that: One end of the adjusting screw rod (61) extending out of the workbench (1) is provided with a square boss (64), and the other end is provided with a smooth shaft boss (65). A toothed boss (66) is arranged at the end of the smooth shaft boss (65). The axes of the adjusting screw rods (61) of each group of the width adjusting devices (6) are located on the same horizontal line, and a coupling sleeve (67) is further arranged between the two toothed bosses (66). The length of the coupling sleeve (67) is less than the length of the smooth shaft boss (65).

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