A precision shaft machining and grinding device and method

Abstract

The present invention provides a processing and grinding device and method for a precision shaft. The clamping assembly also includes a cushion block, a slider, a rotating sphere, an axis arm, a through shaft, a clamping ring, a fixed shaft and a weight. The slider slides on both sides of the inside of the slide rail, the cushion block slides on the upper end of the slider, the rotating sphere is hinged to one side of the slider, the axis arm swings on the side of the rotating sphere away from the slider, the clamping ring swings at one end of the axis arm, the through shaft penetrates the inner side of the clamping ring, the fixed shaft penetrates the inside of the through shaft, the weight is arranged at the lower end of the fixed shaft, the upper end of the cushion block is arranged in a semicircular arc shape, and the semicircular arc angle is 180°. The cushion block is arranged on both sides of the upper end of the base, and the cushion block slides horizontally on the upper end of the slide rail through the slider. The precision shaft is limited and fixed, and the cushion block moves on the upper end of the slide rail, so that the limit can be adjusted according to the length of the precision shaft. At the same time, the clamping assembly can facilitate the comprehensive grinding of the outer side of the precision shaft to avoid the displacement of the precision shaft during the grinding process.

Description

Technical Field

[0001] The invention relates to the field of precision shaft processing, and in particular to a precision shaft processing and grinding device and method. Background Art

[0002] Precision shafts refer to shaft parts with high precision requirements such as roundness runout. Precision shafts need to be ground by grinding equipment during production. Grinding equipment uses high-speed rotating grinding wheels to grind precision shafts. Grinding equipment usually uses fixtures to limit and fix precision shafts during grinding to avoid displacement of precision shafts during grinding. Technical inspiration for grinding equipment;

[0003] Research on grinding equipment found the following problems:

[0004] The fixture of the grinding equipment is usually fixed in position. Since the precision shafts are of different models, sizes and lengths, the fixture of the grinding equipment needs to be replaced according to the model of the precision shaft. Therefore, different precision shafts need to be equipped with different types of fixtures, which makes it impossible for the fixture of the grinding equipment to be quickly adjusted and clamped according to the size of the precision shaft.

[0005] At present, CN202010686893.5 in the prior art discloses a grinding device for precision bearing processing. The electric telescopic rod of the invention adjusts the height position of the grinding assembly until the grinding roller shaft is close to the bearing; the rotating motor drives the tapered shaft to move on the embedded mounting groove, the tapered shaft is a table structure with a large upper end and a narrow lower end, the tapered shaft extends outward, and the moving balls on both sides approach each other along the fixed slide groove, driving the driving shaft to approach each other; the driving shaft pulls the traction block to move on the limiting slide groove, so that the grinding roller shafts approach each other, and the distance between the corresponding grinding roller shafts on both sides is reduced, so that the grinding position can be changed; on the contrary, the tapered shaft retracts downward, so that the distance between the corresponding grinding roller shafts on both sides increases;

[0006] The present invention can mainly solve the problem that the clamp of the grinding equipment cannot be quickly adjusted and clamped according to the size of the precision shaft. Summary of the invention

[0007] The purpose of the present invention is to provide a precision shaft grinding device and method.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A precision shaft processing and grinding device and method, including a grinder, the upper end of the grinder is provided with a motor, the workbench of the grinder is provided with a clamping assembly, the clamping assembly includes a base and a slide rail, the base and the motor are vertically arranged, and the slide rail runs through the interior of the upper end of the base.

[0010] As a further solution of the present invention: the motor is connected to the power circuit through a power cord, a grinding wheel is rotated at one end of the grinder close to the motor, the motor drives the grinding wheel to rotate 360 ​​degrees, and the grinding wheel grinds the precision shaft.

[0011] As a further solution of the present invention: the interior of the base is hollow, the slide rail runs through the upper end of the base in a transverse direction, and the precision shaft is placed on the upper end of the base.

[0012] As a further solution of the present invention: the clamping assembly also includes a pad, a slider, a rotating sphere, an axis arm, a through shaft, a retaining ring, a fixed shaft and a weight. The slider slides on both sides of the inside of the slide rail, the pad slides on the upper end of the slider, the rotating sphere is hinged to one side of the slider, the axis arm swings on the side of the rotating sphere away from the slider, the retaining ring swings at one end of the axis arm, the through shaft passes through the inner side of the retaining ring, the fixed shaft passes through the inside of the through shaft, and the weight is arranged at the lower end of the fixed shaft.

[0013] As a further solution of the present invention: the upper end of the cushion block is arranged in a semicircular arc shape, the semicircular arc angle is 180°, the cushion blocks are arranged on both sides of the upper end of the base, and the cushion blocks slide horizontally on the upper end of the slide rail through the slider.

[0014] As a further solution of the present invention: the lower end of the slider is slidably fitted with the inner wall of the base, the rotating sphere is matched with the slider, and the shaft arm is vertically tilted and swung inside the slide rail through the rotating sphere.

[0015] As a further solution of the present invention: the through shaft is arranged at the connection between the shaft arms on both sides of the slide rail. When the slider is in a stationary state, the shaft arm is tilted 5-15° as a whole, and when the slider slides to the side close to the shaft arm, the shaft arm swings upward as a whole through the rotating ball.

[0016] As a further solution of the present invention: the retaining rings are distributed on both sides of the through-shaft, and the retaining rings on both sides of the through-shaft are respectively matched with the shaft arms on both sides inside the slide rail. When the shaft arms swing at an inclined angle, the retaining rings rotate and shift around the outer side of the through-shaft.

[0017] As a further solution of the present invention: the fixed shaft penetrates and extends to the outside of the through shaft, the weight of the weight is 50-100g, and the weight of the weight is less than the weight of the precision shaft.

[0018] As a further solution of the present invention: a lining plate is embedded in the middle of the upper end of the cushion block, a piston rod is slidably provided at the lower end of the lining plate, a sleeve is slidably fitted at the lower end of the piston rod, a bending layer is bent and embedded at the lower end of the sleeve, tracks are provided on both sides of the interior of the cushion block, a bracket slides through the interior of the track, and limiting layers are embedded on both sides of the upper end of the cushion block.

[0019] As a further solution of the present invention: the lining plate is arranged vertically in sequence with the piston rod, the sleeve and the bending layer, the lining plate is made of a deformable material, such as rubber, and the limiting layer is made of the same material as the lining plate.

[0020] As a further solution of the present invention: the lower end of the piston rod is slidably fitted with the inner wall of the sleeve, and the brackets are distributed on both sides of the upper end of the piston rod. The piston rod slides vertically inside the sleeve, and the sleeve passes through the interior of the pad and extends to the lower end of the slider.

[0021] As a further solution of the present invention: when the piston rod is in a stationary state, the bending layer is at the lower end of the sleeve, and when the piston rod slides downward, the bending layer bends downward and extends to the lower end of the sleeve. The thickness of the bending layer is 0.2-0.4cm, and the material of the bending layer is the same as that of the lining plate.

[0022] As a further solution of the present invention: the end of the bracket away from the piston rod is at the lower end of the limiting layer, the track is arranged in a semicircular arc shape, and the semicircular arc angle is 90-120°. When the piston rod slides downward, the end of the bracket away from the piston rod is squeezed to one end of the limiting layer.

[0023] As a further solution of the present invention: the method comprises the following steps. The specific operation steps are as follows:

[0024] S1: A precision shaft is placed on the upper end of the base, and the motor drives the grinding wheel to rotate 360°. The grinding wheel grinds the precision shaft on the upper end of the base at high speed;

[0025] S2: Manually slide the pads on both sides of the upper end of the slide rail. At this time, the pads drive the slider to slide inside the slide rail, and the interval between the pads is reduced. When the slider slides horizontally, the shaft arm can swing upward by rotating the ball. At this time, the clamping ring at one end of the shaft arm and the through shaft swing upward synchronously, the clamping ring slides synchronously on the outside of the through shaft, and the weight moves upward;

[0026] S3: Since the weight of the weight is less than the weight of the precision shaft, the weight is suspended inside the slide rail at this time, and the pad and the slider are in a stationary state;

[0027] S4: After the precision shaft is placed on the upper end of the cushion block, the lower end of the precision shaft is squeezed to the upper end of the liner, and the liner slides downward on the upper end of the cushion block. The piston rod at the lower end of the liner slides downward synchronously with the inside of the casing. When the piston rod slides downward inside the casing, the pressure inside the casing is high, while the pressure outside the casing is low. At this time, the bending layer at the lower end of the casing bends and deforms downward;

[0028] S5: The lower end of the curved layer is slidably fitted with the inner wall of the slide rail. The curved layer can increase the friction between the slider and the inside of the base, thereby preventing the slider from sliding inside the slide rail when the precision shaft is placed on the upper end of the base.

[0029] S6: When the piston rod slides downward, the piston rod drives the bracket to slide on the inner side of the track, and the end of the bracket away from the piston rod is squeezed to one end of the limiting layer. At this time, the limiting layer is deformed on both sides of the upper end of the cushion block. The limiting layer can limit and fix the two sides of the lower end of the precision shaft to avoid displacement of the precision shaft during grinding.

[0030] S7: After the precision shaft is ground, the precision shaft is manually taken out from the upper end of the pad. At this time, the upper end of the pad loses the gravity extrusion, and the weight of the weight is used to assist the shaft to move downward inside the slide rail.

[0031] S8: The retaining rings passing through both sides of the shaft synchronously assist the shaft arm to swing downward. During the shaft arm return process, the auxiliary slider and the pad return inside the slide rail, making this clamping component convenient for subsequent precision shaft grinding.

[0032] 1. In the present invention, the pads are manually slid on both sides of the upper end of the slide rail, and the pads drive the slider to slide inside the slide rail, and the interval between the pads is reduced. When the slider slides horizontally, the shaft arm can swing upward by rotating the sphere. At this time, the clamping ring at one end of the shaft arm and the through shaft swing upward synchronously, the clamping ring slides synchronously on the outside of the through shaft, and the weight moves upward;

[0033] Since the weight of the weight is less than the weight of the precision shaft, the weight is in a suspended position inside the slide rail at this time, and the cushion block and the slider are in a stationary state.

[0034] 2. After the precision shaft grinding of the present invention is completed, the precision shaft is manually taken out from the upper end of the pad. At this time, the upper end of the pad loses the gravity extrusion, and the downward weight of the weight is utilized to assist the through-shaft to move downward inside the slide rail, while the retaining rings on both sides of the through-shaft synchronously assist the shaft arm to return and swing downward. During the return process of the shaft arm, the auxiliary slider and the pad are returned to the inside of the slide rail, so that this clamping assembly can facilitate the subsequent precision shaft grinding process.

[0035] 3. After the precision shaft of the present invention is placed on the upper end of the cushion block, the lower end of the precision shaft is squeezed to the upper end of the lining plate, and the lining plate slides downward on the upper end of the cushion block. The piston rod at the lower end of the lining plate slides downward synchronously inside the sleeve. When the piston rod slides downward inside the sleeve, the pressure inside the sleeve is large, while the pressure outside the sleeve is small. At this time, the bending layer at the lower end of the sleeve bends and deforms downward, and the lower end of the bending layer slides and fits with the inner wall of the slide rail. The bending layer can increase the friction between the slider and the inside of the base, thereby avoiding the situation where the slider slides inside the slide rail when the precision shaft is placed on the upper end of the base.

[0036] 4. When the piston rod of the present invention slides downward, the piston rod drives the bracket to slide on the inner side of the track, and the end of the bracket away from the piston rod is squeezed to one end of the limiting layer. At this time, the limiting layer is arched and deformed on both sides of the upper end of the pad. The limiting layer can form a limiting fixation on both sides of the lower end of the precision shaft to avoid displacement of the precision shaft during grinding.

[0037] 5. The present invention limits and fixes the precision shaft through the above steps, and the pad moves at the upper end of the slide rail, which is convenient for adjusting the limit according to the length of the precision shaft. At the same time, the clamping assembly can facilitate the comprehensive grinding of the outer side of the precision shaft to avoid displacement of the precision shaft during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0039] Figure 2 It is a schematic diagram of the base structure of the present invention.

[0040] Figure 3 It is a schematic diagram of the structure of the cushion block assembly of the present invention.

[0041] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure.

[0042] Figure 5 It is a cross-sectional view of the cushion block structure of the present invention.

[0043] Figure 6 It is a schematic diagram of the cross-sectional structure of the casing of the present invention.

[0044] Figure 1-6 In: 1-grinding machine, 101-motor, 102-base, 103-slide rail, 2-pad, 201-slider, 202-rotating sphere, 203-axis arm, 3-through shaft, 301-retaining ring, 302-fixed shaft, 303-weight, 4-lining plate, 401-piston rod, 402-sleeve, 403-bending layer, 5-track, 501-bracket, 502-limiting layer. Implementation

[0045] See also Figure 1-6 In the embodiment of the present invention,

[0046] Embodiment 1: A precision shaft machining and grinding device and method, comprising a grinder 1, wherein a motor 101 is disposed at the upper end of the grinder 1, and a clamping assembly is disposed on the working table of the grinder 1, wherein the clamping assembly comprises a base 102 and a slide rail 103, wherein the base 102 and the motor 101 are arranged vertically correspondingly, and the slide rail 103 runs through the interior of the upper end of the base 102;

[0047] Among them: a grinder 1 and a motor 101, the motor 101 is connected to a power supply circuit through a power line, a grinding wheel rotates at one end of the grinder 1 close to the motor 101, the motor 101 drives the grinding wheel to rotate 360 ​​degrees, and the grinding wheel grinds the precision shaft;

[0048] The base 102 is hollow inside, the slide rail 103 runs through the upper end of the base 102 in a transverse direction, and a precision shaft is placed on the upper end of the base 102;

[0049] A precision shaft is placed on the upper end of the base 102 , and the motor 101 drives the grinding wheel to rotate 360°, and the grinding wheel performs high-speed rotation and grinding on the precision shaft on the upper end of the base 102 .

[0050] Example 2: Refer to the attached manual Figure 1-4 It can be known that the difference between Example 2 and Example 1 is that the clamping assembly further includes a cushion block 2, a slider 201, a rotating sphere 202, an axis arm 203, a through shaft 3, a snap ring 301, a fixed shaft 302 and a weight 303, the slider 201 slides on both sides inside the slide rail 103, the cushion block 2 slides on the upper end of the slider 201, the rotating sphere 202 is hinged to one side of the slider 201, the axis arm 203 swings on the side of the rotating sphere 202 away from the slider 201, the snap ring 301 swings on one end of the axis arm 203, the through shaft 3 penetrates the inner side of the snap ring 301, the fixed shaft 302 penetrates the inside of the through shaft 3, and the weight 303 is arranged at the lower end of the fixed shaft 302;

[0051] Wherein: the cushion block 2, the upper end of the cushion block 2 is arranged in a semicircular arc shape, the semicircular arc angle is 180°, the cushion block 2 is arranged on both sides of the upper end of the base 102, and the cushion block 2 slides horizontally on the upper end of the slide rail 103 through the slider 201;

[0052] The upper end of the cushion block 2 is arranged in a semicircular arc shape, and the angle of the semicircular arc is 180°, so that the outer side of the precision shaft and the upper end of the cushion block 2 can form a surrounding wrapping limit, and avoid the situation where the precision shaft is easily displaced by the upper end of the cushion block 2 due to the upper end of the cushion block 2 being arranged in a plane;

[0053] The slider 201 and the rotating sphere 202, the lower end of the slider 201 is slidably fitted with the inner wall of the base 102, the rotating sphere 202 and the slider 201 are matched, and the shaft arm 203 is vertically tilted and swung inside the slide rail 103 through the rotating sphere 202;

[0054] The shaft arm 203 penetrates the shaft 3 and is disposed at the joint of the shaft arm 203 on both sides of the inner side of the slide rail 103. When the slider 201 is in a stationary state, the shaft arm 203 is tilted 5-15° as a whole. When the slider 201 slides toward the side close to the shaft arm 203, the shaft arm 203 is swung upward as a whole through the rotating ball 202.

[0055] When the slider 201 is in a stationary state, the shaft arm 203 is tilted 5-15° as a whole. At this time, the shaft arm 203 is set at an inclined angle, so that when the slider 201 slides later, the shaft arm 203 can swing upward, avoiding the shaft arm 203 being unable to tilt and swing upward after the slider 201 slides when the shaft arm 203 is horizontal.

[0056] The through-shaft 3 and the snap ring 301 are distributed on both sides of the through-shaft 3. The snap rings 301 on both sides of the through-shaft 3 are respectively matched with the shaft arms 203 on both sides of the inner side of the slide rail 103. When the shaft arms 203 swing at an inclined angle, the snap rings 301 rotate and shift around the outer side of the through-shaft 3.

[0057] The clamping rings 301 on both sides of the penetrating shaft 3 are respectively matched with the shaft arms 203 on both sides of the inner side of the slide rail 103, so that the shaft arms 203 on both sides of the inner side of the slide rail 103 can swing in opposite directions through the clamping rings 301;

[0058] A fixed shaft 302 and a weight 303, the fixed shaft 302 penetrates and extends to the outside of the through shaft 3, the weight 303 weighs 50-100g, and the weight of the weight 303 is less than the weight of the precision shaft;

[0059] Wherein: manually slide the pad 2 on both sides of the upper end of the slide rail 103, at this time, the pad 2 drives the slider 201 to slide inside the slide rail 103, and the interval between the pads 2 is reduced. When the slider 201 slides horizontally, the shaft arm 203 can swing upward by rotating the sphere 202. At this time, the clamping ring 301 at one end of the shaft arm 203 and the through shaft 3 swing upward synchronously, the clamping ring 301 slides synchronously on the outside of the through shaft 3, and the weight 303 moves upward. Please refer to the attached manual for details. Figure 3 As shown;

[0060] Since the weight of the weight 303 is less than the weight of the precision shaft, the weight 303 is in a suspended position inside the slide rail 103 at this time, and the cushion block 2 and the slider 201 are in a stationary state;

[0061] When the precision shaft grinding is completed, the precision shaft is manually removed from the upper end of the pad 2. At this time, the upper end of the pad 2 loses the gravity squeezing, and the downward weight of the weight 303 is utilized. The weight 303 assists the through-shaft 3 to move downward inside the slide rail 103, and the retaining rings 301 on both sides of the through-shaft 3 synchronously assist the shaft arm 203 to return and swing downward. During the return process of the shaft arm 203, the auxiliary slider 201 and the pad 2 return to the inside of the slide rail 103, so that this clamping assembly can facilitate the subsequent precision shaft grinding process.

[0062] Example 3: Refer to the attached manual Figure 5 and 6It can be known that the difference between Example 3 and Examples 1 and 2 is that a lining plate 4 is embedded in the middle of the upper end of the cushion block 2, a piston rod 401 is slidably provided at the lower end of the lining plate 4, a sleeve 402 is slidably fitted at the lower end of the piston rod 401, a bending layer 403 is bent and embedded at the lower end of the sleeve 402, tracks 5 are provided on both sides of the cushion block 2, a bracket 501 is slidably penetrated inside the track 5, and limiting layers 502 are embedded on both sides of the upper end of the cushion block 2;

[0063] Wherein: the lining plate 4, the lining plate 4 and the piston rod 401, the sleeve 402 and the bending layer 403 are arranged vertically in sequence, the lining plate 4 is a deformable material, such as a rubber material, and the limiting layer 502 is made of the same material as the lining plate 4;

[0064] The piston rod 401 and the sleeve 402, the lower end of the piston rod 401 is slidably fitted with the inner wall of the sleeve 402, and the brackets 501 are distributed on both sides of the upper end of the piston rod 401, the piston rod 401 slides vertically inside the sleeve 402, and the sleeve 402 passes through the interior of the cushion block 2 and extends to the lower end of the slider 201;

[0065] When the piston rod 401 slides downward inside the sleeve 402, the pressure inside the sleeve 402 is high, while the pressure outside the sleeve 402 is low. At this time, the bending layer 403 at the lower end of the sleeve 402 bends downward and deforms, as shown in the attached manual. Figure 6 As shown, the specific principle can refer to the principle of syringe injection of liquid medicine;

[0066] The bending layer 403 is located at the lower end of the sleeve 402 when the piston rod 401 is in a stationary state, and when the piston rod 401 slides downward, the bending layer 403 bends downward and extends to the lower end of the sleeve 402. The thickness of the bending layer 403 is 0.2-0.4 cm, and the material of the bending layer 403 is the same as that of the lining plate 4;

[0067] The track 5 and the bracket 501, the end of the bracket 501 away from the piston rod 401 is at the lower end of the limiting layer 502, the track 5 is arranged in a semicircular arc shape, and the angle of the semicircular arc is 90-120 degrees. When the piston rod 401 slides downward, the end of the bracket 501 away from the piston rod 401 is squeezed to one end of the limiting layer 502;

[0068] Among them: after the precision shaft is placed on the upper end of the cushion block 2, the lower end of the precision shaft is squeezed to the upper end of the lining plate 4, and the lining plate 4 slides downward on the upper end of the cushion block 2, and the piston rod 401 at the lower end of the lining plate 4 slides downward synchronously with the inside of the sleeve 402. When the piston rod 401 slides downward inside the sleeve 402, the pressure inside the sleeve 402 is large, while the pressure outside the sleeve 402 is small. At this time, the bending layer 403 at the lower end of the sleeve 402 bends and deforms downward, and the lower end of the bending layer 403 slides and fits with the inner wall of the slide rail 103. The bending layer 403 can increase the friction between the slider 201 and the base 102, thereby avoiding the situation where the slider 201 slides inside the slide rail 103 when the precision shaft is placed on the upper end of the base 102;

[0069] When the piston rod 401 slides downward, the piston rod 401 drives the bracket 501 to slide on the inner side of the track 5, and the end of the bracket 501 away from the piston rod 401 is squeezed to one end of the limiting layer 502. At this time, the limiting layer 502 is arched and deformed on both sides of the upper end of the pad 2. The limiting layer 502 can form a limiting fixation on both sides of the lower end of the precision shaft to avoid displacement of the precision shaft during grinding.

[0070] Embodiment 4: The method comprises the following steps:

[0071] S1: A precision shaft is placed on the upper end of the base 102, and the motor 101 drives the grinding wheel to rotate 360 ​​degrees, and the grinding wheel performs high-speed rotation and grinding on the precision shaft on the upper end of the base 102;

[0072] S2: Manually slide the pad 2 on both sides of the upper end of the slide rail 103. At this time, the pad 2 drives the slider 201 to slide inside the slide rail 103, and the interval between the pads 2 is reduced. When the slider 201 slides horizontally, the shaft arm 203 can swing upward by rotating the sphere 202. At this time, the snap ring 301 at one end of the shaft arm 203 and the through shaft 3 swing upward synchronously, the snap ring 301 slides synchronously on the outside of the through shaft 3, and the weight 303 moves upward;

[0073] S3: Since the weight of the weight 303 is less than the weight of the precision shaft, the weight 303 is in a suspended position inside the slide rail 103 at this time, and the cushion block 2 and the slider 201 are in a stationary state;

[0074] S4: After the precision shaft is placed on the upper end of the cushion block 2, the lower end of the precision shaft is squeezed to the upper end of the liner 4, and the liner 4 slides downward on the upper end of the cushion block 2. The piston rod 401 at the lower end of the liner 4 slides downward synchronously with the inside of the sleeve 402. When the piston rod 401 slides downward inside the sleeve 402, the pressure inside the sleeve 402 is high, while the pressure outside the sleeve 402 is low. At this time, the bending layer 403 at the lower end of the sleeve 402 bends and deforms downward;

[0075] S5: The lower end of the curved layer 403 is slidably fitted with the inner wall of the slide rail 103. The curved layer 403 can increase the friction between the slider 201 and the inside of the base 102, thereby preventing the slider 201 from sliding inside the slide rail 103 when the precision shaft is placed on the upper end of the base 102.

[0076] S6: When the piston rod 401 slides downward, the piston rod 401 drives the bracket 501 to slide on the inner side of the track 5, and the end of the bracket 501 away from the piston rod 401 is squeezed to one end of the limiting layer 502. At this time, the limiting layer 502 is deformed on both sides of the upper end of the cushion block 2. The limiting layer 502 can limit and fix the two sides of the lower end of the precision shaft to avoid displacement of the precision shaft during grinding.

[0077] S7: After the precision shaft grinding is completed, the precision shaft is manually taken out from the upper end of the cushion block 2. At this time, the upper end of the cushion block 2 loses the gravity squeezing, and the weight 303 is used to assist the through-shaft 3 to move downward inside the slide rail 103.

[0078] S8: The clamping ring 301 passing through both sides of the shaft 3 synchronously assists the shaft arm 203 to return and swing downward. During the return process of the shaft arm 203, the auxiliary slider 201 and the cushion block 2 return inside the slide rail 103, so that this clamping assembly can facilitate subsequent precision shaft grinding;

[0079] The precision shaft is limited and fixed through the above steps, and the pad 2 moves on the upper end of the slide rail 103, which is convenient for adjusting the limit according to the length of the precision shaft. At the same time, the clamping assembly can facilitate the comprehensive grinding of the outer side of the precision shaft to avoid displacement of the precision shaft during the grinding process.

[0080] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A precision shaft processing and grinding device, comprising a grinding machine (1), characterized in that: The upper end of the grinder (1) is provided with a motor (101); the workbench of the grinder (1) is provided with a clamping assembly, the clamping assembly comprising a base (102) and a slide rail (103); the base (102) and the motor (101) are arranged vertically correspondingly, and the slide rail (103) runs through the interior of the upper end of the base (102); The clamping assembly further comprises a cushion block (2), a slider (201), a rotating sphere (202), an axis arm (203), a through-shaft (3), a snap ring (301), a fixed shaft (302) and a weight (303); the slider (201) slides on both sides inside the slide rail (103); the cushion block (2) slides on the upper end of the slider (201); the rotating sphere (202) is hinged to one side of the slider (201); the axis arm (203) swings on the side of the rotating sphere (202) away from the slider (201); the snap ring (301) swings on one end of the axis arm (203); the through-shaft (3) penetrates the inner side of the snap ring (301); the fixed shaft (302) penetrates the inner side of the through-shaft (3); and the weight (303) is arranged at the lower end of the fixed shaft (302); A lining plate (4) is embedded in the middle of the upper end of the cushion block (2); a piston rod (401) is slidably mounted on the lower end of the lining plate (4); a sleeve (402) is slidably fitted on the lower end of the piston rod (401); a bending layer (403) is bent and embedded in the lower end of the sleeve (402); tracks (5) are provided on both sides of the interior of the cushion block (2); a bracket (501) is slidably penetrated inside the track (5); and limiting layers (502) are embedded on both sides of the upper end of the cushion block (2); The lining plate (4), the piston rod (401), the sleeve (402) and the bending layer (403) are arranged vertically in sequence, the lining plate (4) is made of a deformable material, such as rubber, and the limiting layer (502) is made of the same material as the lining plate (4); A piston rod (401) and a sleeve (402), wherein the lower end of the piston rod (401) is slidably fitted with the inner wall of the sleeve (402), and the brackets (501) are distributed on both sides of the upper end of the piston rod (401), and the piston rod (401) slides vertically inside the sleeve (402), and the sleeve (402) penetrates the interior of the cushion block (2) and extends to the lower end inside the slider (201); When the piston rod (401) is in a stationary state, the bending layer (403) is located at the lower end of the sleeve (402), and when the piston rod (401) slides downward, the bending layer (403) bends downward and extends to the lower end of the sleeve (402). The thickness of the bending layer (403) is 0.2-0.4 cm, and the material of the bending layer (403) is the same as that of the lining plate (4); The track (5) and the bracket (501) are provided, wherein one end of the bracket (501) away from the piston rod (401) is located at the lower end of the limiting layer (502), and the track (5) is arranged in a semicircular arc shape with an angle of 90-120 degrees. When the piston rod (401) slides downward, one end of the bracket (501) away from the piston rod (401) is pressed against one end of the limiting layer (502).

2. The precision shaft processing and grinding equipment according to claim 1, characterized in that: The motor (101) is connected to a power supply circuit via a power supply line. A grinding wheel is rotatably arranged at one end of the grinder (1) close to the motor (101). The motor (101) drives the grinding wheel to rotate 360 ​​degrees, and the grinding wheel grinds the precision shaft. The base (102) is hollow inside, the slide rail (103) runs through the upper end of the base (102) in a transverse direction, and a precision shaft is placed on the upper end of the base (102).

3. The precision shaft processing and grinding equipment according to claim 1, characterized in that: The upper end of the cushion block (2) is arranged in a semicircular arc shape, and the semicircular arc angle is 180 degrees. The cushion block (2) is arranged on both sides of the upper end of the base (102), and the cushion block (2) slides horizontally on the upper end of the slide rail (103) through the slider (201); The slider (201) and the rotating sphere (202) are provided, wherein the lower end of the slider (201) is slidably fitted with the inner wall of the base (102), the rotating sphere (202) and the slider (201) are matched with each other, and the shaft arm (203) is vertically tilted and swung inside the slide rail (103) through the rotating sphere (202).

4. The precision shaft processing and grinding equipment according to claim 1, characterized in that: The through shaft (3) is arranged at the connection points of the shaft arms (203) on both sides inside the slide rail (103); when the slider (201) is in a stationary state, the shaft arms (203) are tilted by 5-15 degrees as a whole; and when the slider (201) slides toward a side close to the shaft arm (203), the shaft arm (203) is swung upward as a whole through the rotating sphere (202).

5. The precision shaft processing and grinding equipment according to claim 1, characterized in that: The clamping rings (301) are distributed on both sides of the through-shaft (3), and the clamping rings (301) on both sides of the through-shaft (3) are respectively matched with the shaft arms (203) on both sides inside the slide rail (103). When the shaft arms (203) swing at an inclined angle, the clamping rings (301) rotate and shift around the outer side of the through-shaft (3); A fixed shaft (302) and a weight (303), wherein the fixed shaft (302) penetrates and extends to the outside of the penetrating shaft (3), and the weight (303) weighs 50-100 g, and the weight of the weight (303) is less than the weight of the precision shaft.

6. A method for machining a precision shaft with a grinding device, characterized in that According to the precision shaft processing and grinding equipment according to any one of claims 1 to 5, the method comprises the following steps: S1: A precision shaft is placed on the upper end of the base (102), and the motor (101) drives the grinding wheel to rotate 360 ​​degrees, and the grinding wheel performs high-speed rotation grinding on the precision shaft on the upper end of the base (102); S2: Manually slide the pad (2) on both sides of the upper end of the slide rail (103), and the pad (2) drives the slider (201) to slide inside the slide rail (103), and the interval between the pads (2) is reduced. When the slider (201) slides horizontally, the shaft arm (203) can be tilted and swung upward by rotating the sphere (202). At this time, the clamping ring (301) at one end of the shaft arm (203) and the through shaft (3) swing upward synchronously, and the clamping ring (301) slides synchronously on the outside of the through shaft (3), and the weight (303) moves upward; S3: Since the weight of the weight (303) is less than the weight of the precision shaft, the weight (303) is in a suspended position inside the slide rail (103) at this time, and the cushion block (2) and the slider (201) are in a stationary state; S4: After the precision shaft is placed on the upper end of the cushion block (2), the lower end of the precision shaft is pressed to the upper end of the lining plate (4), and the lining plate (4) slides downward on the upper end of the cushion block (2). The piston rod (401) at the lower end of the lining plate (4) slides downward synchronously with the inside of the sleeve (402). When the piston rod (401) slides downward inside the sleeve (402), the pressure inside the sleeve (402) is high, while the pressure outside the sleeve (402) is low. At this time, the bending layer (403) at the lower end of the sleeve (402) bends and deforms downward; S5: The lower end of the curved layer (403) is slidably fitted with the inner wall of the slide rail (103), and the curved layer (403) can increase the friction between the slider (201) and the base (102), thereby preventing the slider (201) from sliding inside the slide rail (103) when the precision shaft is placed on the upper end of the base (102); S6: When the piston rod (401) slides downward, the piston rod (401) drives the bracket (501) to slide on the inner side of the track (5), and the end of the bracket (501) away from the piston rod (401) is squeezed to one end of the limiting layer (502). At this time, the limiting layer (502) is deformed in an arched manner on both sides of the upper end of the cushion block (2). The limiting layer (502) can limit and fix the two sides of the lower end of the precision shaft to avoid displacement of the precision shaft during grinding. S7: After the precision shaft is ground, the precision shaft is manually removed from the upper end of the cushion block (2). At this time, the upper end of the cushion block (2) loses the force of gravity, and the downward weight of the weight (303) is utilized. The weight (303) assists the through-shaft (3) to move downward inside the slide rail (103); S8: The clamping ring (301) passing through both sides of the shaft (3) synchronously assists the shaft arm (203) to return and swing downward. During the return process of the shaft arm (203), the auxiliary slider (201) and the cushion block (2) return inside the slide rail (103), so that this clamping assembly can facilitate subsequent precision shaft grinding.

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