A sliding vane, compressor and machining process of the sliding vane

Abstract

The application discloses a sliding vane, a compressor and a processing technology of the sliding vane. The sliding vane comprises a body; and a roller mounting groove is arranged on the body, wherein the roller mounting groove is provided with an inner concave curved surface which is adapted to the roller, the inner concave curved surface is an optimal arc curved surface, and the opening of the inner concave curved surface is outward and upward. The roller mounting groove is designed in a targeted manner, the optimal arc is greater than one-half of a circle, and the opening direction is inclined at a certain angle, so that the relative position of the roller is fixed, the roller does not deviate and does not fall out during the operation of the compressor, the roller can be better accommodated and fixed, the sealing performance of the compressor during the operation is improved, the friction coefficient between the sliding vane and the piston roller is reduced, and the energy efficiency ratio is improved.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a vane, a compressor, and a processing technology for the vane. Background Technology

[0002] Traditional sliding vanes, during operation, involve sliding friction between the sealing surface between the vane and the compressor's piston rotor, and between the vane's thickness-direction sidewall and the cylinder's sliding vane groove. This results in high resistance, high losses, and insufficient sealing performance.

[0003] Furthermore, in the existing sliding vane processing technology, the roller receiving groove is usually formed by drilling and cutting. However, the drilling process cannot guarantee the micron-level perpendicularity requirement between the deep hole with a drilling depth ratio of more than 10 and the front side of the sliding vane, nor can it guarantee the micron-level parallelism requirement between the roller receiving groove and the two sides. The reference hole cannot meet the position tolerance requirements, and reaming cannot change the position tolerance of the roller groove. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a sliding vane that can improve the sealing performance of the compressor during operation, while reducing the coefficient of friction between the sliding vane and the piston rollers, and between the sliding vane and the sliding vane mounting groove, thereby improving the energy efficiency ratio.

[0005] The present invention also proposes a compressor including the above-mentioned sliding vane.

[0006] The present invention also proposes a processing technology including the above-mentioned sliding plate.

[0007] According to a first aspect of the present invention, a slider includes:

[0008] ontology;

[0009] A roller mounting groove is provided on the body. The roller mounting groove has a concave curved surface for adapting to the roller. The concave curved surface is a large arc surface, and the opening of the concave curved surface faces outward and is inclined upward.

[0010] According to the first aspect of the present invention, the sliding vane has at least the following beneficial effects: by making a targeted design for the roller mounting groove, with an arc greater than half a circle and the opening direction inclined at a certain angle, it is ensured that the roller is fixed in relative position, does not shift, and does not come out during the operation of the compressor, thereby better accommodating and fixing the roller, improving the sealing performance of the compressor during operation, and reducing the friction coefficient between the sliding vane and the piston roller, thereby improving the energy efficiency ratio.

[0011] According to a first aspect embodiment of the present invention, the slide body has a first side surface, and the slide body further includes an elastic groove. The elastic groove has a preset groove width, so that the body forms connecting portions with preset strengths on the upper and lower sides of the elastic groove. The elastic groove is formed on the first side surface and extends in a direction away from the first side surface and penetrates the body, so that the body can flexibly deform based on the elastic groove.

[0012] According to a first aspect of the present invention, the slide body has a first side surface, which is a side surface of the body along its length direction. The roller mounting groove is disposed on a second side surface opposite to the first side surface. The concave curved surface includes an upper end, an axis, and a lower end. The upper end and the axis are located in the same plane as the second side surface, and the lower end is located on the outer side relative to the second side surface.

[0013] A compressor according to a second aspect of the present invention includes: a sliding vane as described in a first aspect of the present invention.

[0014] It is easy to understand that the compressor in the second aspect embodiment of the present invention has the same technical effect as the sliding vane in the first aspect embodiment, and therefore will not be described again.

[0015] The processing technology of the slider according to a third aspect embodiment of the present invention includes the following steps:

[0016] A hexahedral blank is milled according to the preset dimensions, with machining allowance left.

[0017] The upper and lower sides and the front and rear sides of the hexahedral blank after milling are ground to provide a clamping reference for subsequent processing.

[0018] The left and right sides of the blank are milled multiple times using various milling cutters to remove the machining allowance;

[0019] Based on the remaining machining allowance, perform one or more milling and grinding operations to adjust the dimensions and form and position tolerances of the slide to meet the design requirements.

[0020] Based on the remaining machining allowance, ball end mills and / or ball end grinding heads are used once or multiple times to combine the high-precision linear motion of the precision grinding machine with the rotational motion of the ball end mills and / or ball end grinding heads to form a high-precision cylindrical surface of the roller mounting groove, so that the dimensions, form and position tolerances and surface roughness of the roller mounting groove meet the design requirements.

[0021] The processing technology of the slide according to the third aspect of the present invention has at least the following beneficial effects: by using multiple milling cutters to perform milling multiple times, the roller mounting groove is initially formed, avoiding the forming method of drilling and then cutting in the traditional slide manufacturing process. This results in a roller mounting groove with higher precision and richer structural characteristics, while ensuring that the relative position of the roller remains fixed during compressor operation. Furthermore, by using a ball-end milling cutter and a grinding head to process the roller mounting groove with a C-shaped cross section, the consistent characteristics of the spherical generatrix can effectively avoid the adverse effects of large deviations in the roundness and cylindricity of the hole and groove caused by uneven force and drill bit damage during drilling. By simultaneously mounting the ball-end milling cutter and the ball-end grinding head on the same height grinding machine, the high running and positioning accuracy of the grinding machine can effectively ensure that the perpendicularity of the roller mounting groove to the upper and lower end faces of the slide meets the design requirements after processing.

[0022] According to the third aspect of the present invention, the processing technology of the sliding plate is wherein the blank is made of ductile iron and is obtained by melting molten iron, casting into a mold, cooling and molding and opening the mold to obtain a ductile iron flat substrate blank.

[0023] Alternatively, the blank may be made of stainless steel, and a stainless steel flat substrate blank may be obtained by cutting the raw material into strips and then straightening the strips horizontally.

[0024] Alternatively, it can be cast into a plate and then cut into a base material blank;

[0025] Alternatively, the blank may be manufactured using powder metallurgy, where a rough-formed substrate blank is directly obtained through powder metallurgy.

[0026] According to the third aspect of the present invention, the machining process of the slide plate, wherein the roller mounting groove is formed by taking the left and right sides of the blank as machining surfaces, includes:

[0027] The first milling feature is formed for the first time using an end mill.

[0028] The second milling feature is formed by using a forming disc milling cutter on the basis of the first milling feature;

[0029] The third milling feature is formed by machining the second milling feature using a ball end mill for the third time, in order to initially form the roller mounting groove.

[0030] According to the third aspect embodiment of the present invention, the processing technology of the slider involves cutting the entire blank into individual dimensions of the slider to obtain a rough blank of the slider. The method of obtaining the rough blank of the slider includes:

[0031] Along the length of the blank, multiple positioning slots are machined on the upper or lower side of the blank, with the center of each positioning slot located on the center line of the blank along its length.

[0032] The blank is cut along the centerline of its length, so that the positioning slot is divided into two spring positioning slots formed in different sliders;

[0033] Cutting is performed between adjacent spring positioning grooves along the width direction of the blank to form a rough blank of multiple sliding pieces.

[0034] According to the third aspect embodiment of the present invention, the method of obtaining the rough blank of the slider further includes: after machining the positioning slot hole, machining an elastic groove communicating with the positioning slot hole, wherein the left and right ends of the elastic groove are located outside the left and right sides of the positioning slot hole.

[0035] The elastic groove is machined starting from the front side of the blank and gradually moving to the rear side of the blank;

[0036] Alternatively, the elastic groove can be machined starting from the rear side of the blank and gradually moving towards the front side of the blank.

[0037] According to the third aspect of the present invention, the processing technology of the sliding plate involves grinding the upper and lower sides and the front and rear sides of the hexahedral blank, and then stacking and clamping the blanks together along the thickness direction.

[0038] When machining the left and right sides of the blank, a double-sided milling method is used, proceeding from top to bottom.

[0039] During and / or cutting processes, the stacked blanks are cut simultaneously.

[0040] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0042] Figure 1 This is a schematic diagram of the slider structure in an embodiment of the present invention;

[0043] Figure 2 This is a front view of the slider in an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of the first milling of the forming roller mounting groove in an embodiment of the present invention;

[0045] Figure 4 This is a schematic diagram of the second milling of the forming roller mounting groove in an embodiment of the present invention;

[0046] Figure 5 This is a schematic diagram of the third milling of the forming roller mounting groove in an embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram illustrating the processing of the sliding blank obtained in an embodiment of the present invention;

[0048] Figure 7 This is a partial structural diagram of the sliding vane installed on the compressor in an embodiment of the present invention.

[0049] Figure label:

[0050] Body 100, first cutting line 110, second cutting line 120, positioning slot 130, first milling feature 140, second milling feature 150, third milling feature 160, connecting part 170;

[0051] Roller mounting groove 200, upper end 210, axis 220, lower end 230;

[0052] Spring positioning groove 300, elastic groove 310;

[0053] Slider mounting slot 400;

[0054] End mill 510, profile milling cutter 520, ball end mill 530. Detailed Implementation

[0055] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0056] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0057] In the description of this invention, "several" means one or more, "more than" means at least two, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0058] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0059] Reference Figures 1-6 The slide vane of the first aspect of the present invention is applied to a compressor. The slide vane includes a body 100 and a roller mounting groove 200.

[0060] The roller mounting groove 200 is provided in the body 100. The roller mounting groove 200 has a concave curved surface adapted to fit the roller. The concave curved surface is a superior arc surface, and the opening of the concave curved surface faces outward and is inclined upward. By making targeted designs to the roller mounting groove 200, with a superior arc greater than half a circle and the opening direction inclined at a certain angle, it is ensured that the relative position of the roller is fixed, does not shift, and does not fall out during the operation of the compressor. This better accommodates and fixes the roller, thereby improving the sealing performance of the compressor during operation, while reducing the friction coefficient between the sliding vane and the piston roller, and improving the energy efficiency ratio.

[0061] In some embodiments of the present invention, the body 100 has a first side surface, and the slide also includes an elastic groove 310. The elastic groove 310 has a preset groove width, so that the body 100 forms connecting portions 170 with preset strength on the upper and lower sides of the elastic groove 310. The connecting portion 170 is part of the body 100 and is used to be installed in the slide mounting groove of the compressor. It is limited by the slide mounting groove and therefore needs a certain strength. Therefore, the connecting portion 170 needs to have a certain size. The elastic groove 310 is formed on the first side surface and extends in a direction away from the first side surface and penetrates the body 100, so that the body 100 can flexibly deform based on the elastic groove 310.

[0062] The slide includes a spring positioning groove 300, and both the spring positioning groove 300 and the roller mounting groove 200 are disposed on the body 100. By providing the spring positioning groove 300 for placing the spring, the slide can work normally within the slide mounting groove of the cylinder. In other embodiments, the elastic groove 310 can be specifically disposed at any position on the body 100, depending on the specific position of installation in the slide mounting groove. In a preferred embodiment, the body 100 has a first side surface, specifically a side surface along the length of the body 100. A roller mounting groove 200 is disposed on a second side surface opposite to the first side surface. A spring positioning groove 300 is disposed on the body 100, formed on the first side surface and extending inwards into the body 100. An elastic groove 310 is formed on the first side surface, extending along the depth direction of the spring positioning groove 300 and extending at least beyond the bottom of the spring positioning groove 300. Both sides of the elastic groove 310 extend at least to the sides of the opening of the spring positioning groove 300, allowing the body 100 to flexibly deform based on the elastic groove 310. By forming the elastic groove 310 within the spring positioning groove 300, the body 100 can flexibly deform based on the elastic groove 310 during sliding, thereby reducing frictional loss while ensuring sealing. This improves the sealing performance of the compressor during operation, reduces the coefficient of friction between the sliding vane and the piston roller, and improves the energy efficiency ratio.

[0063] In some embodiments of the present invention, specific references are made. Figures 1-2 The rollers are fixed in position and do not shift during compressor operation by using an arc greater than half a circle with an opening direction at a certain angle to the horizontal centerline of the body 100. The concave surface formed in the body 100 has a special design: an upper end 210, an axis 220, and a lower end 230. The upper end 210 and axis 220 are on the same plane as the second side, while the lower end 230 is located on the outer side relative to the second side. This targeted limitation of the upper end 210 and axis 220 facilitates the implementation of the vane machining process and improves assembly and machining accuracy. Based on these limitations, the relative position of the rollers is fixed. Simultaneously, limiting the lower end 230 to the outer side of the second side gives the concave surface a certain upward-curving arc surface, which better accommodates and fixes the rollers, improving the compressor's sealing performance during operation and reducing the friction coefficient between the vane and piston rollers, thus improving the energy efficiency ratio. Based on the above design, in some embodiments, the body 100, roller mounting groove 200, spring positioning groove 300 and elastic groove 310 can be gradually processed into an integral structure from a blank, which is simple to process, has higher precision and better sealing effect.

[0064] In some embodiments of the present invention, specific references are made. Figure 1 and Figure 2Multiple spring positioning grooves 300 are provided, and each spring positioning groove 300 is formed at intervals on the first side. An elastic groove 310 is provided and extends at least through both sides of the opening of each spring positioning groove 300 to fully receive the force exerted by the spring on the slider. In some embodiments, the spring positioning groove 300 is used to place the spring, so that when the rotor rotates, the rollers in the roller mounting groove 200 are always in close contact with the outer surface of the rotating piston. To ensure the stability and balance of the slider, there are one or more spring positioning grooves 300, and their shapes can be trapezoidal, square, etc. (See also...) Figure 7 The spring is placed in the spring positioning groove 300 and then installed in the slide plate mounting groove 400 of the cylinder. The outer side of the body 100 is limited by the slide plate mounting groove 400, and the roller is installed in the roller mounting groove 200 to be in close contact with the rotating piston. When the rotor rotates, the body 100 is subjected to the forces of the slide plate mounting groove 400, the roller, and the spring. These forces are all transmitted to the elastic groove 310, allowing the body 100 to adaptively and flexibly deform through the elastic groove 310. The sealing surface is always in a suitable working state, thereby maintaining reliable installation and sealing of the slide plate and the slide plate mounting groove 400.

[0065] In some embodiments of the present invention, specific references are made. Figures 1-2 The specific design of the elastic groove 310 further ensures the reliability of installation and the degree of sealing. Specifically, taking the groove length of the elastic groove 310 as an example, the elastic groove 310 extends from one end of the body 100 along the length direction to the other end of the body 100 along the length direction. That is, the elastic groove 310 extends from the front to the back of the body 100, and can be processed using a through-groove machining process. Specifically, taking the groove depth of the elastic groove 310 as an example, the elastic groove 310 is formed on the first side and extends along the groove depth direction of the spring positioning groove 300, extending at least beyond the width centerline of the body 100. Specifically, taking the groove width of the elastic groove 310 as an example, the elastic groove 310 is formed at the middle position of one side of the body 100 along the length direction, and the centerline of the groove width of the elastic groove 310 coincides with the centerline of one side of the body 100 along the length direction.

[0066] In the specific description, the two ends of the body 100 along its length direction can refer to the front and back sides of the body 100, and the two sides of the body 100 along its length direction can refer to the left and right sides of the body 100. The body 100 extends parallel to its upper and lower sides along its length direction. This invention can be understood by analogy with reference to the accompanying drawings, and further description is not provided here.

[0067] Reference Figures 1-7The compressor of the second aspect of the present invention may be a rotary compressor. The compressor includes the vanes of the first aspect of the present invention, which can improve the sealing performance of the compressor during operation, while reducing the friction coefficient between the vanes and the piston rollers and improving the energy efficiency ratio.

[0068] Reference Figures 1-7 The processing technology of the slider according to the third aspect of the present invention is used to process and manufacture the slider. It is understood that the slider according to the first aspect of the present invention can be manufactured by the processing technology of the slider.

[0069] Specific reference Figures 3-5 The processing technology of the sliding plate includes the following steps:

[0070] A hexahedral blank is milled according to the preset dimensions, with a machining allowance. In some embodiments, the dimensions of the hexahedral blank can be 4.0*41*615mm. With a machining allowance of 1 to 2mm, the machining amount in this process is 0.5mm.

[0071] The top and bottom sides and front and back sides of the hexahedral blank after milling are ground to provide a precise clamping reference for subsequent processing; in some embodiments, the machining amount of this process is 0.4 mm, which is a rough grinding process.

[0072] The left and right sides of the blank are milled multiple times using various milling cutters to remove the machining allowance and initially form the roller mounting groove 200; in some embodiments, after this process, a grinding allowance of 0.1-0.15 is required for subsequent rough grinding.

[0073] Based on the remaining machining allowance, perform one or more grinding adjustments to ensure that the dimensions and form and position tolerances of the slide meet the design requirements. Specifically, based on the remaining machining allowance, use a ball end mill 530 and a ball end mill head one or more times respectively.

[0074] Based on the remaining machining allowance, ball end mills 530 and / or ball end grinding heads are used one or more times to combine the high-precision linear motion of the precision grinding machine with the high-precision rotary motion of the ball end mills 530 and / or ball end grinding heads to form a high-precision cylindrical surface of the roller mounting groove 200, ensuring that the dimensions, form and position tolerances, and surface roughness of the roller mounting groove 200 meet the design requirements. In some embodiments, the grinding process can be divided into two steps: semi-finish grinding and finish grinding. In a preferred embodiment, the upper and lower sides of the body 100 are semi-finish ground first, with the remaining 0.04mm machining allowance used for finish grinding to ensure that the workpiece thickness and form and position tolerances meet the design requirements. Then, the front and back sides of the body 100 are semi-finish ground, with the remaining 0.04mm machining allowance used for finish grinding to ensure that the workpiece height and form and position tolerances meet the design requirements. Next, a high-speed, high-precision grinding machine and a spherical CNB electroplated grinding head are used to perform rough and fine grinding on the roller mounting groove 200. First, the C-shaped arc surface is rough ground. The C-shaped groove, which has undergone three milling processes, is rough ground to remove cutting marks and excess machining, leaving a 0.01-0.03mm fine grinding allowance. Then, fine grinding is performed to remove the machining allowance. Finally, in-situ finishing grinding is performed to ensure that the dimensions, form and position tolerances, and surface roughness of the C-shaped groove meet the design requirements. Finally, the upper and lower sides, front and back sides are finely ground in sequence to further ensure that the machining accuracy, form and position tolerances, and surface roughness meet the design requirements. Then, chamfering and deburring operations are performed.

[0075] The roller mounting groove 200 is initially formed by milling multiple times using various milling cutters, avoiding the traditional method of drilling and then cutting in the vane manufacturing process. This results in a roller mounting groove 200 with higher precision and richer structural characteristics, while ensuring that the rollers remain in a fixed position during compressor operation. Furthermore, a ball-end milling cutter and a grinding head are used to machine the C-shaped roller mounting groove 200. The consistent shape of the spherical generatrix effectively avoids the large deviations in roundness and cylindricity of the hole / groove caused by uneven force and drill bit damage during drilling. By simultaneously mounting a ball-end milling cutter 530 and a ball-end grinding head on the same high-precision grinding machine, the high running and positioning accuracy of the grinding machine effectively ensures that the perpendicularity of the roller mounting groove 200 to the upper and lower end faces of the vane meets the design requirements after machining.

[0076] In some embodiments of the present invention, the blank is made of ductile iron and is obtained by melting molten iron, casting it into a mold, cooling and shaping it to open the mold. In some embodiments, the blank size can be 5.5*45*620mm.

[0077] In some embodiments of the present invention, the blank is made of stainless steel. The stainless steel flat substrate blank is obtained by cutting the raw material into strips and then straightening the strips horizontally. In some embodiments, laser cutting is used to achieve better slitting effect, and the slitting size can be 5.5*45*620mm.

[0078] In some embodiments of the present invention, the casting plate is produced by casting and then cut to form a base material blank; in some embodiments, the blank size may be 5.5*45*620mm.

[0079] In some embodiments of the present invention, the blank is manufactured by powder metallurgy, and the rough-formed substrate blank is directly obtained by powder metallurgy. The blank size can be 5.5*45*620mm.

[0080] In some embodiments of the present invention, the method of forming the roller mounting groove 200 by using the left and right sides of the blank as machining surfaces includes:

[0081] The first milling feature 140 is formed by the end mill 510 for the first time; the first milling feature 140 is a single stepped structure.

[0082] The second milling feature 150 is formed by the forming disc milling cutter 520 based on the first milling feature 140; the second milling feature 150 is a U-shaped groove with an upwardly inclined opening.

[0083] The third milling feature 160 is formed by machining the ball end mill 530 on the basis of the second milling feature 150. The third milling feature 160 is a concave arc surface to initially form the roller mounting groove 200.

[0084] Specific reference Figure 6 In some embodiments of the present invention, the entire blank is cut into individual dimensions of the slide piece by cutting process to obtain the rough blank of the slide piece; in some embodiments, efficient processing technology such as laser cutting or water jet cutting can be used.

[0085] Methods for obtaining a rough blank for a slider include:

[0086] Along the length of the blank, a plurality of positioning slots 130 spaced apart from each other are machined on the upper or lower side of the blank, and the center of each positioning slot 130 is located on the center line of the blank along the length direction; in some embodiments, the positioning slots 130 can be specifically designed according to the specific shape of the spring positioning slot 300.

[0087] Based on the first cutting line 110, the cutting process is carried out along the center line of the blank length direction, so that the positioning slot hole 130 is divided into two spring positioning slots 300 formed in different slides.

[0088] Based on the second cutting line 120, cutting is performed between adjacent spring positioning grooves 300 along the width direction of the blank to form a rough blank of multiple sliding pieces.

[0089] Specific reference Figures 1-2 If the rough blank of the slider needs to be machined with an elastic groove 310, the method of obtaining the rough blank of the slider also includes: after machining the positioning slot hole 130, machining the elastic groove 310 that communicates with the positioning slot hole 130, wherein the left and right ends of the elastic groove 310 are located outside the left and right sides of the positioning slot hole 130; the elastic groove 310 is machined from the front side of the blank and gradually machined to the rear side of the blank, or the elastic groove 310 is machined from the rear side of the blank and gradually machined to the front side of the blank.

[0090] In some embodiments of the present invention, after the upper and lower sides and the front and rear sides of the hexahedral blank are ground, the blanks are stacked along the thickness direction and clamped uniformly. When processing the left and right sides of the blank, the processing is carried out by double-sided milling from top to bottom, at least once back and forth. During the cutting process, the stacked blanks are cut at the same time. After the manufacturing is completed, in order to ensure that the height and width of the slide plate and the slide plate mounting groove 400 match to achieve high pressure sealing, the finished slide plates are screened and grouped so as to select and install them in combination with the size of the cylinder slide plate groove. The grouped slide plates are inspected for form and position tolerances and appearance. Qualified products are still placed in groups, and then rust prevention treatment and packaging are performed.

[0091] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A processing technology for a sliding plate, characterized in that, The slide includes a body and a roller mounting groove. The roller mounting groove is disposed on the body and has a concave curved surface for adapting to the roller. The concave curved surface is a large arc surface, and the opening of the concave curved surface faces outward and is inclined upward. The body has a first side surface, which is a side surface of the body along its length direction. The roller mounting groove is disposed on a second side surface opposite to the first side surface. The concave curved surface includes an upper end, an axis, and a lower end. The upper end and the axis are located in the same plane as the second side surface, and the lower end is located on the outer side relative to the second side surface. The processing technology of the slider includes the following steps: A hexahedral blank is milled according to the preset dimensions, with machining allowance left. The upper and lower sides and the front and rear sides of the hexahedral blank after milling are ground to provide a clamping reference for subsequent processing. The left and right sides of the blank are milled multiple times using various milling cutters to remove the machining allowance; Based on the remaining machining allowance, perform one or more milling and grinding operations to adjust the dimensions and form and position tolerances of the slide to meet the design requirements. Based on the remaining machining allowance, ball end mills and / or ball end grinding heads are used once or multiple times to combine the high-precision linear motion of the precision grinding machine with the rotational motion of the ball end mills and / or ball end grinding heads to form a high-precision cylindrical surface of the roller mounting groove, so that the dimensions, form and position tolerances and surface roughness of the roller mounting groove meet the design requirements. The method of forming the roller mounting groove by using the left and right sides of the blank as machining surfaces includes: The first milling feature is formed by machining with an end mill for the first time. The first milling feature is a single stepped structure. The second milling feature is formed by machining a U-shaped groove with an upward-sloping opening using a forming disc milling cutter based on the first milling feature. The third milling feature is formed by machining the second milling feature with a ball end mill for the third time. The third milling feature is a concave arc surface, which is used to initially form the roller mounting groove.

2. The processing technology of the slider according to claim 1, characterized in that: The blank is made of ductile iron and is obtained by melting molten iron, casting it into a mold, cooling and shaping it to open the mold. Alternatively, the blank may be made of stainless steel, and a stainless steel flat substrate blank may be obtained by cutting the raw material into strips and then straightening the strips horizontally. Alternatively, it can be cast into a plate and then cut into a base material blank; Alternatively, the blank may be manufactured using powder metallurgy, where a rough-formed substrate blank is directly obtained through powder metallurgy.

3. The processing technology of the slider according to claim 1, characterized in that: The rough blank of the slider is obtained by cutting the whole blank into individual dimensions of the slider through cutting processing. The methods to obtain the rough blank of the slider include: Along the length of the blank, multiple positioning slots are machined on the upper or lower side of the blank, with the center of each positioning slot located on the center line of the blank along its length. The blank is cut along the centerline of its length, so that the positioning slot is divided into two spring positioning slots formed in different sliders; Cutting is performed between adjacent spring positioning grooves along the width direction of the blank to form a rough blank of multiple sliding pieces.

4. The processing technology of the slider according to claim 3, characterized in that: The slider also includes an elastic groove with a preset groove width, so that the body forms a connecting part with a preset strength on the upper and lower sides of the elastic groove respectively. The elastic groove is formed on the first side and extends in a direction away from the first side and penetrates the body, so that the body can flexibly deform based on the elastic groove. The method of obtaining the rough blank of the slider also includes: after machining the positioning slot, machining an elastic groove that communicates with the positioning slot, wherein the left and right ends of the elastic groove are located outside the left and right sides of the positioning slot. The elastic groove is machined from the front side of the blank and gradually moves to the rear side of the blank, or the elastic groove is machined from the rear side of the blank and gradually moves to the front side of the blank.

5. The processing technology of the slider according to claim 3 or 4, characterized in that: After grinding the top and bottom sides and the front and back sides of the hexahedral blank, the blanks are stacked along the thickness direction and clamped together. When machining the left and right sides of the blank, a double-sided milling method is used, proceeding from top to bottom. During the cutting process, all stacked blanks are cut simultaneously.

6. A compressor, characterized in that, Includes a slider, which is manufactured using the slider processing technology described in any one of claims 1-5.

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