Accelerometer grinding machine

Abstract

The utility model discloses an accelerometer grinding machine, belongs to the technical field of accelerometers, and solves the problems that in the prior art, after a file is adopted to grind an accelerometer mounting surface, the obtained mounting surface is large in roughness and uneven. The accelerometer grinding machine comprises a base, and a mounting frame is mounted on the base; a grinding wheel assembly is arranged on the mounting frame and is in transmission connection with the power assembly; a moving assembly is arranged on one side of the mounting frame, an angle adjusting assembly is arranged on the moving assembly, and an accelerometer is mounted on the angle adjusting assembly. According to the utility model, the moving assembly can drive the angle adjusting assembly and the accelerometer to approach the grinding wheel assembly, and the power assembly drives the grinding wheel assembly to rotate so as to grind the mounting surface of the accelerometer; the grinding mode is easy and efficient to operate, a large amount of time is saved compared with traditional manual grinding through a file, the grinding method is suitable for batch production, and the ground mounting face is flat and smooth.

Description

TECHNICAL FIELD

[0001] The utility model relates to accelerometer technical field especially relates to a accelerometer grinder. BACKGROUND

[0002] The suspension wire accelerometer, especially the single-axis pendulum type servo wire accelerometer, is a key element in the inertial navigation system. It uses the negative feedback principle of the closed loop system to suspend the detection mass (also called the sensitive mass) at a fixed position of the structure. The detection mass is supported by a very thin suspension wire, and the suspension wire passes through a glass tube filled with special damping silicon oil. The suspension wire is a key part of the accelerometer and is also the most likely to fail part. This type of accelerometer can measure constant and low-frequency accelerations along its input axis, and is particularly sensitive to the overload or acceleration measurement of missiles and other aircraft.

[0003] The circular suspension wire accelerometer is of the same type as the quartz accelerometer. According to market research, about 200,000 quartz accelerometers are needed every year. During the production process, it is difficult to ensure that the pendulum assembly and the mounting surface of the base are parallel due to manual welding. Therefore, it is necessary to use grinding to make the pendulum assembly and the mounting surface parallel, thereby reducing the installation error and improving the measurement accuracy. In the prior art, the grinding method of the mounting surface of the accelerometer usually uses a file to grind. Since the shell of the accelerometer product is made of stainless steel, using a file to grind can easily cause the mounting surface to be uneven and have a large roughness, resulting in poor grinding effect. In addition, the grinding method using a file has low working efficiency, and the workload is large when mass production is carried out, which cannot meet the production demand. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides an accelerometer grinder, which solves the problem of large roughness and unevenness of the mounting surface obtained after the accelerometer mounting surface is polished by a file in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0006] An accelerometer grinder comprises a base, a mounting rack mounted on the base, a grinding wheel assembly provided on the mounting rack, the grinding wheel assembly being in transmission connection with a power assembly, a moving assembly provided on one side of the mounting rack, an angle adjusting assembly provided on the moving assembly, and an accelerometer mounted on the angle adjusting assembly.

[0007] In the scheme, the moving assembly can drive the angle adjusting assembly and the accelerometer to approach the grinding wheel assembly. After approaching, the power assembly drives the grinding wheel assembly to rotate, thereby polishing the mounting surface of the accelerometer. The polishing method can obtain a mounting surface that is flat and has small roughness, and the product qualified rate is high.

[0008] Further, the moving assembly comprises a supporting plate connected to the base; two guide rods are arranged between the supporting plate and the mounting frame, and a moving block is slidably arranged on the two guide rods; a threaded hole is formed in the moving block, and a screw rod is threadedly connected in the threaded hole, the screw rod being parallel to the guide rods; one end of the screw rod is movably connected to the mounting frame, and the other end of the screw rod penetrates through the supporting plate and is connected to the first hand wheel; and the angle adjusting assembly is mounted on the top of the moving block.

[0009] In the scheme, the first hand wheel is manually rotated to drive the screw rod to rotate, the screw rod drives the moving block to move along the guide rods through the threaded action, and then the accelerometer is brought close to the grinding wheel; the accelerometer is ensured to move stably during the grinding process, and the obtained mounting surface is relatively flat.

[0010] Further, the angle adjusting assembly comprises a steering support mounted on the top of the moving block through fastening bolts; a clamping piece is arranged on the top of the steering support, one end of the clamping piece is integrally connected to the steering support, and the other end of the clamping piece is connected to the steering support through bolts; a magnetic base is clamped between the clamping piece and the steering support, and the accelerometer is magnetically attracted to the magnetic base.

[0011] In the scheme, the mounting mode of the accelerometer and the magnetic base is simple, fast, and convenient for quickly replacing the next accelerometer after the grinding is completed; and the steering support can rotate relative to the moving block, so that the grinding angle of the accelerometer is conveniently adjusted.

[0012] Further, the grinding wheel assembly comprises a main shaft grinding wheel base, one end of the main shaft grinding wheel base is movably connected to the mounting hole of the mounting frame through a sliding bearing; a ring-shaped grinding wheel is mounted on the side of the main shaft grinding wheel base close to the accelerometer through a fixing ring; a belt groove is formed in the outer surface of the main shaft grinding wheel base, and the main shaft grinding wheel base is drivingly connected to the motor in the power assembly through a transmission belt in the belt groove.

[0013] In the scheme, the motor drives the main shaft grinding wheel base to rotate through the transmission belt, the ring-shaped grinding wheel rotates synchronously with the main shaft grinding wheel base, and then the mounting surface of the accelerometer is ground.

[0014] Further, the two guide rods are connected to a fixing plate at the ends away from the supporting plate, threaded holes are formed in the fixing plate, and screw rods are threadedly connected in the threaded holes; a second hand wheel is connected to one end of the screw rod away from the mounting frame, a pressing rod is movably connected to the end of the screw rod close to the mounting frame, and the end of the pressing rod penetrates through the main shaft grinding wheel base and the ring-shaped grinding wheel and abuts against the accelerometer.

[0015] In the scheme, the second hand wheel is rotated during the grinding to drive the pressing rod to abut against the accelerometer to fix the accelerometer, so that the ring-shaped grinding wheel piece is prevented from rotating with the accelerometer during the grinding.

[0016] Further, a spring is sleeved on the pressing rod, one end of the spring is connected to the screw rod, and the other end of the spring is connected to a positioning ring on the pressing rod.

[0017] In the scheme, rotating the second hand wheel before grinding makes the pressure rod press the accelerometer, rotating the first hand wheel during grinding drives the accelerometer to approach the annular grinding wheel, and the accelerometer pushes the pressure rod to retreat during the approaching process, and the spring on the pressure rod contracts; the design realizes the left and right movement of the accelerometer during grinding, and the pressure rod can always press the accelerometer under the action of the spring during the movement process, avoiding rotation of the accelerometer.

[0018] Further, the power assembly comprises a motor, a belt pulley is arranged on an output shaft of the motor, and the belt pulley is in transmission connection with the main shaft grinding wheel seat through a transmission belt;

[0019] A sliding plate is mounted at the bottom of the motor, and a bottom plate is slidably connected to the bottom of the sliding plate and mounted on the base.

[0020] In the scheme, the sliding plate drives the motor to move along the bottom plate, facilitating adjustment of the position of the motor.

[0021] The accelerometer grinder has the advantages that:

[0022] The accelerometer grinder has the advantages that: BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Fig. 1 is a structural schematic view of the accelerometer grinder of the utility model;

[0024] Figure 2 Fig. 2 is a structural schematic view of another perspective of the accelerometer grinder of the utility model;

[0025] Figure 3 Fig. 3 is a structural schematic view of the angle adjusting assembly of the utility model;

[0026] Figure 4 Fig. 4 is a sectional structural schematic view of the grinding wheel assembly, the pressure rod and the lead screw and other components of the utility model.

[0027] Reference signs:

[0028] 1, base; 2, mounting frame; 3, moving assembly; 31, supporting plate; 32, guide rod; 33, moving block; 34, screw rod; 35, first hand wheel; 36, fixed plate; 37, screw; 38, second hand wheel; 39, pressing rod; 40, spring; 4, angle adjusting assembly; 41, steering support; 42, fastening bolt; 43, clamping piece; 44, magnetic watch holder; 5, power assembly; 51, motor; 52, sliding plate; 53, bottom plate; 6, grinding wheel assembly; 61, main shaft grinding wheel seat; 62, sliding bearing; 63, transmission belt; 64, fixed ring; 65, annular grinding wheel; DETAILED DESCRIPTION

[0029] The utility model will be further described below in combination with the drawings and specific embodiments. The specific embodiments of the utility model are described below to facilitate the understanding of the utility model by those skilled in the art, but it should be clear that the utility model is not limited to the scope of the specific embodiments, and for those skilled in the art, as long as various changes are within the spirit and scope of the utility model defined and determined by the appended claims, these changes are obvious, and all the invention and creation utilizing the concept of the utility model are within the scope of protection.

[0030] As Figure 1 And Figure 2 The embodiment provides an accelerometer grinder, which grinds the mounting surface of the accelerometer by driving the grinding wheel piece to rotate by the motor 51, and the mounting surface after grinding is flat and smooth; and the specific embodiments include:

[0031] The base 1, the mounting frame 2, the grinding wheel assembly 6, the power assembly 5, the moving assembly 3 and the angle adjusting assembly 4;

[0032] The mounting frame 2 is provided with the grinding wheel assembly 6, and the grinding wheel assembly 6 is in transmission connection with the power assembly 5; one side of the mounting frame 2 is provided with the moving assembly 3, the moving assembly 3 is provided with the angle adjusting assembly 4, and the angle adjusting assembly 4 is provided with the accelerometer. The moving assembly 3 can drive the angle adjusting assembly 4 and the accelerometer to be close to the grinding wheel assembly 6, and after being close, the power assembly 5 drives the grinding wheel assembly 6 to rotate, so that the mounting surface of the accelerometer is polished.

[0033] The moving assembly 3 comprises a supporting plate 31, a moving block 33, a screw rod 34, guide rods 32 and a first hand wheel 35; the supporting plate 31 is connected to the base 1; two guide rods 32 are arranged between the supporting plate 31 and the mounting frame 2, and the moving block 33 is slidably arranged on the two guide rods 32; a threaded hole is formed in the moving block 33, and the screw rod 34 is threadedly connected in the threaded hole; the screw rod 34 is parallel to the guide rods 32; one end of the screw rod 34 is movably connected to the mounting frame 2, and the other end of the screw rod 34 penetrates through the supporting plate 31 and is connected to the first hand wheel 35. The first hand wheel 35 is manually rotated to drive the screw rod 34 to rotate, and the screw rod 34 drives the moving block 33 to move along the guide rods 32 through the threaded action, thereby driving the accelerometer to move close to the grinding wheel; the accelerometer is stably moved during the grinding process, and the obtained mounting surface is relatively flat.

[0034] As shown in Figure 3 , the angle adjusting assembly 4 comprises a steering bracket 41, which is mounted on the top of the moving block 33 through a fastening bolt 42; the top of the steering bracket 41 is provided with a clamping piece 43, one end of the clamping piece 43 is integrally connected with the steering bracket 41, and the other end of the clamping piece 43 is connected to the steering bracket 41 through a bolt; the clamping piece 43 and the steering bracket 41 clasp a magnetic table seat 44 therebetween, and the accelerometer is magnetically attracted to the magnetic table seat 44. The mounting mode of the accelerometer and the magnetic table seat 44 is simple, fast and convenient for quickly replacing the next accelerometer after the grinding is completed; the steering bracket 41 can be rotated relative to the moving block 33, which is convenient for adjusting the grinding angle of the accelerometer.

[0035] As shown in Figure 4 , the grinding wheel assembly 6 comprises a main shaft grinding wheel seat 61 and a ring-shaped grinding wheel 65; one end of the main shaft grinding wheel seat 61 is movably connected in the mounting hole of the mounting frame 2 through a sliding bearing 62; the side of the main shaft grinding wheel seat 61 close to the accelerometer is provided with the ring-shaped grinding wheel 65 through a fixing ring 64; a belt groove is formed in the outer surface of the main shaft grinding wheel seat 61, and the main shaft grinding wheel seat 61 is drivingly connected with the motor 51 in the power assembly 5 through a transmission belt 63 in the belt groove. The motor 51 drives the main shaft grinding wheel seat 61 to rotate through the transmission belt 63, the ring-shaped grinding wheel 65 rotates synchronously with the main shaft grinding wheel seat 61, thereby grinding the mounting surface of the accelerometer.

[0036] The ends of the two guide rods 32 away from the supporting plate 31 are connected with a fixed plate 36, a threaded hole is formed in the fixed plate 36, and a lead screw 37 is threadedly connected in the threaded hole; the end of the lead screw 37 away from the mounting frame 2 is connected with a second hand wheel 38, the end of the lead screw 37 close to the mounting frame 2 is movably connected with a pressing rod 39, and the end of the pressing rod 39 penetrates through the main shaft grinding wheel seat 61 and the ring-shaped grinding wheel 65 and abuts against the accelerometer. The second hand wheel 38 is rotated to drive the pressing rod 39 to tightly press the accelerometer and fix the accelerometer during the grinding, so that the ring-shaped grinding wheel 65 is prevented from rotating with the accelerometer during the grinding.

[0037] A spring 40 is sleeved on the pressing rod 39, one end of the spring 40 is connected with the lead screw 37, and the other end of the spring 40 is connected with a positioning ring on the pressing rod 39. The second hand wheel 38 is rotated before grinding to make the pressing rod 39 tightly press the accelerometer; the first hand wheel 35 is rotated during grinding to drive the accelerometer to approach the annular grinding wheel 65, and the accelerometer pushes the pressing rod 39 to retreat during the approaching process, and the spring 40 on the pressing rod 39 is contracted. The design realizes the left and right movement of the accelerometer during the grinding process, and the pressing rod 39 can always press the accelerometer under the action of the spring 40 during the movement process, so that the rotation of the accelerometer is avoided.

[0038] The power assembly 5 comprises a motor 51, a belt pulley is arranged on an output shaft of the motor 51, and the belt pulley is in transmission connection with the main shaft grinding wheel seat 61 through a transmission belt 63; a sliding plate 52 is installed at the bottom of the motor 51, and the bottom of the sliding plate 52 is in sliding connection with a bottom plate 53, and the bottom plate 53 is installed on the base 1.

[0039] The working principle of the embodiment is as follows:

[0040] Before use, the accelerometer grinder of the embodiment is first checked for the appearance of the machine to check whether lubrication of each part is good and whether the transmission belt 63 is tensioned; then, according to the grinding requirements, a suitable magnetic table seat 44 is selected and installed on the steering support 41, and a suitable annular grinding wheel 65 is selected and installed on the main shaft grinding wheel seat 61.

[0041] The motor 51 is started, the rotating speed is adjusted, and the motor 51 is turned off after the rotating speed is adjusted to a suitable rotating speed; the accelerometer to be polished is installed on the magnetic table seat 44, and the second hand wheel 38 is rotated to drive the pressing rod 39 to tightly press the accelerometer; and the angle of the steering support 41 is set according to the debugging data.

[0042] The motor 51 is started, the first hand wheel 35 is rotated to make the accelerometer slowly move towards the annular grinding wheel 65, and attention is paid to observation; after the installation surface of the accelerometer is cut flat by the annular grinding wheel 65, the first hand wheel 35 is reversely rotated to make the accelerometer and the annular grinding wheel 65 disengage.

[0043] The motor 51 is turned off, the accelerometer is dismounted, and the zero output of the accelerometer is measured to check whether the process requirements are met; if not, the polishing is repeated.

[0044] Those skilled in the art will appreciate that the embodiments herein are to help the readers understand the principles of the utility model, and should be understood as the protection scope of the utility model is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations according to the technical inspirations disclosed in the utility model without departing from the essence of the utility model, and these modifications and combinations are still within the protection scope of the utility model.

Claims

1. An accelerometer grinding machine, characterized in that: Includes a base (1), on which a mounting bracket (2) is mounted; a grinding wheel assembly (6) is provided on the mounting bracket (2), and the grinding wheel assembly (6) and a power assembly (5) are connected in a transmission; a moving assembly (3) is provided on one side of the mounting bracket (2), and an angle adjustment assembly (4) is provided on the moving assembly (3), and an accelerometer is mounted on the angle adjustment assembly (4).

2. The accelerometer grinding machine according to claim 1, characterized in that: The movable component (3) includes a tray (31) connected to the base (1); two guide rods (32) are provided between the tray (31) and the mounting frame (2), and a movable block (33) is slidably provided on the two guide rods (32); a threaded hole is provided on the movable block (33), and a lead screw (34) is threadedly connected in the threaded hole, the lead screw (34) and the guide rods (32) are parallel; one end of the lead screw (34) is movably connected to the mounting frame (2), and the other end of the lead screw (34) passes through the tray (31) and is connected to the first handwheel (35); The angle adjustment component (4) is mounted on top of the movable block (33).

3. The accelerometer grinding machine according to claim 2, characterized in that: The angle adjustment assembly (4) includes a steering bracket (41), which is mounted on the top of the moving block (33) by fastening bolts (42); a clamping piece (43) is provided on the top of the steering bracket (41), one end of the clamping piece (43) is integrally connected to the steering bracket (41), and the other end of the clamping piece (43) is connected to the steering bracket (41) by bolts; a magnetic base (44) is clamped between the clamping piece (43) and the steering bracket (41), and the accelerometer is magnetically attracted to the magnetic base (44).

4. The accelerometer grinding machine according to claim 3, characterized in that: The grinding wheel assembly (6) includes a spindle grinding wheel holder (61), one end of which is movably connected to the mounting hole of the mounting bracket (2) via a sliding bearing (62); a ring-shaped grinding wheel (65) is mounted on the side of the spindle grinding wheel holder (61) near the accelerometer via a fixing ring (64); a belt groove is provided on the outer surface of the spindle grinding wheel holder (61), and the spindle grinding wheel holder (61) is connected to the motor (51) in the power assembly (5) via a transmission belt (63) in the belt groove.

5. The accelerometer grinding machine according to claim 4, characterized in that: The two guide rods (32) are connected to a fixing plate (36) at the end away from the support plate (31). The fixing plate (36) has a threaded hole, and a lead screw (37) is threaded into the threaded hole. The end of the lead screw (37) away from the mounting bracket (2) is connected to a second handwheel (38). The end of the lead screw (37) close to the mounting bracket (2) is movably connected to a pressure rod (39). The end of the pressure rod (39) passes through the spindle grinding wheel seat (61) and the annular grinding wheel (65) and abuts against the accelerometer.

6. The accelerometer grinding machine according to claim 5, characterized in that: A spring (40) is fitted on the pressure rod (39). One end of the spring (40) is connected to the lead screw (37), and the other end of the spring (40) is connected to the positioning ring on the pressure rod (39).

7. The accelerometer grinding machine according to claim 4, characterized in that: The power assembly (5) includes a motor (51), and a pulley is provided on the output shaft of the motor (51). The pulley is connected to the main shaft grinding wheel seat (61) via a transmission belt (63). The bottom of the motor (51) is equipped with a sliding plate (52), and the bottom of the sliding plate (52) is slidably connected to a base plate (53), which is mounted on the base (1).

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