A spline transmission grinding power device for air conditioner compressor part grinding machine

Abstract

The utility model discloses a spline drive grinding power device for air conditioner compressor part grinding machine. Shell, be annular, main shaft, set up in the shell, the main shaft one end is connected the grinding wheel below the shell, the other end sets up spline shaft and extends to the shell top, transmission part, including spline cover, spline cover with spline shaft cooperation, spline cover cover on spline shaft, and the outer periphery ring of spline cover is connected with mounting ring and transmission pulley, and spline cover and mounting ring rotation are connected, and spline cover and transmission pulley fixed connection. The utility model discloses the tension of transmission belt is not loaded on the grinding spindle, but is unloaded on the bed body through spline cover, and the grinding power head is not influenced when rotating and feeding movement radial external force, has improved the stability of grinding power head operation, has improved the stability of part product quality, and the main shaft rear end is the split structure of spline and spline cover, and the spline cover is immobile when grinding head moves, and the belt pulley also will not move together with the main shaft, and the belt will not appear abnormal wear.

Description

Technical Field

[0001] This utility model relates to a vertical grinding machine for grinding air conditioner compressor parts, specifically to a spline-driven grinding power device for grinding air conditioner compressor parts. Background Technology

[0002] In existing grinding machines used for grinding air conditioner compressor parts, the spindle pulley is fixedly connected to the spindle. When the grinding power head rotates and moves up and down, the belt slips in the pulley, and the belt needs to be replaced after a period of time.

[0003] Furthermore, once the belt is tightened, its tension is directly transmitted to the spindle and simultaneously to the guide rail. When the grinding power head rotates and feeds, it is affected by radial external forces, which affects the smoothness of the grinding power head's operation and the quality of the parts. Utility Model Content

[0004] The purpose of this invention is to provide a spline-driven grinding power device for grinding machines used for air conditioner compressor parts, thereby solving the above-mentioned problems.

[0005] In order to achieve these objectives and other advantages according to the present invention:

[0006] A spline-driven grinding power unit for a grinding machine for air conditioner compressor parts includes:

[0007] The outer shell is ring-shaped;

[0008] The spindle is located inside the housing, with both ends limited by end caps. A bearing is installed between the spindle and the housing. One end of the spindle is connected to a grinding wheel below the housing, and the other end is provided with a splined shaft extending to the top of the housing.

[0009] The transmission part includes a spline sleeve that mates with a spline shaft. The spline sleeve is fitted onto the spline shaft, and a mounting ring and a transmission pulley are connected to the outer periphery of the spline sleeve. The spline sleeve is rotatably connected to the mounting ring, and the spline sleeve and the transmission pulley are fixedly connected.

[0010] Furthermore, the mounting ring is fitted into the annular groove on the spline sleeve, and an annular protrusion is provided on the inner wall of the mounting ring. The inner diameter of the annular protrusion is larger than the outer diameter of the spline sleeve. A ball bearing is provided at each end of the annular protrusion. The inner ring of the ball bearing fits into the spline sleeve, and its outer ring fits into the mounting ring.

[0011] Furthermore, the outer periphery of the spline sleeve is stepped, that is, the outer diameter of one end is larger than the outer diameter of the other end. The spline sleeve is provided with an annular part at the small diameter end, and there is an annular groove between the annular part and the large diameter end to facilitate the installation of the installation ring.

[0012] Furthermore, the transmission pulley is fixed to the spline sleeve by a mounting cover. The mounting cover is annular, and its end face is attached to the spline sleeve and the transmission pulley. The mounting cover is fixedly connected to the spline sleeve and the transmission pulley respectively.

[0013] Furthermore, the mounting ring is located at one end of the spline sleeve near the outer shell, and a ring edge is provided at the end of the mounting ring away from the outer shell. A fixing part is provided on one side of the ring edge. A cylindrical space is provided at the end of the outer shell near the mounting ring. The outer diameter of the mounting ring is smaller than the diameter of the cylindrical space, and the outer diameter of the ring edge is larger than the diameter of the cylindrical space.

[0014] Furthermore, a drive unit is provided on one side of the outer casing. The drive unit includes a transmission screw fixed to the outer casing and a transmission nut mounted on the transmission screw. The transmission nut is rotatably mounted on a mounting base. The inside of the transmission nut meshes with the transmission screw, and the outside of the transmission nut is provided with worm gear teeth. After the mounting base is fixed to the outer casing, the transmission nut is driven to rotate through a worm gear, causing the transmission screw to move up and down.

[0015] The beneficial effects of this utility model are:

[0016] 1. The tension of the transmission belt is not applied to the grinding spindle, but is unloaded onto the bed through the spline sleeve. The advantage of this is that the grinding power head is not affected by radial external force when it rotates and feeds, which improves the smoothness of the grinding power head operation and the stability of the part quality.

[0017] 2. The rear end of the spindle is a separate structure of spline and spline sleeve. When the grinding head moves, the spline sleeve does not move, only the grinding head moves. In this way, the pulley will not move with the spindle, and the belt will not experience abnormal wear.

[0018] 3. An annular protrusion is set inside the mounting ring. The bearing is placed on both sides of the annular protrusion and then sealed with a ring-shaped part to facilitate maintenance between the spline sleeve and the mounting ring.

[0019] 4. The end of the mounting ring near the housing can be inserted into the cylindrical space of the housing. During use, it protects the spline shaft and prevents the spline shaft from being exposed and impacted.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a perspective view of the device;

[0022] Figure 2 This is a front view of the device;

[0023] Figure 3 forFigure 2 Sectional view along line AA in the middle;

[0024] Figure 4 for Figure 3 BB-direction sectional view;

[0025] Figure 5 for Figure 3 Enlarged diagram of direction C in the diagram;

[0026] Figure 6 This is a side view of the device. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. The following description relates to...

[0029] In the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0030] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” as used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0031] It should be understood that although the terms first, second, third, etc., may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this specification, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0032] The solution proposed by this utility model is as follows:

[0033] like Figures 1-6 A spline-driven grinding power unit for grinding air conditioner compressor parts, comprising:

[0034] The outer shell is 100 and is ring-shaped;

[0035] The spindle 200 is housed inside the housing 100, with both ends limited by end caps. A bearing is installed between the spindle 200 and the housing 100. One end of the spindle 200 is connected to a grinding wheel 201 located below the housing 100, and the other end is provided with a splined shaft 202 extending above the housing 100. The end caps are divided into an upper end cap 101 and a lower end cap 102. The upper end cap 101 is fixed to the housing 100 with screws and, together with the housing 100, fixes the outer ring of the first cylindrical roller bearing 103. The inner ring of the first cylindrical roller bearing 103 is embedded in the spindle 200. Similarly, the lower end cap 102 is fixed to the housing 100 with screws and, together with the housing 100, fixes the outer ring of the second cylindrical roller bearing 104. The inner ring of the second cylindrical roller bearing 104 is embedded in the spindle 200.

[0036] The transmission unit 300 includes a spline sleeve 301, which cooperates with the spline shaft 202. The spline sleeve 301 is sleeved on the spline shaft 202. The outer periphery of the spline sleeve 301 is connected to the mounting ring 400 and the transmission pulley 302. The spline sleeve 301 is rotatably connected to the mounting ring 400, and the spline sleeve 301 and the transmission pulley 302 are fixedly connected.

[0037] like Figure 4 and Figure 5 The mounting ring 400 is fitted into the annular groove 303 on the spline sleeve 301. An annular protrusion 401 is provided on the inner wall of the mounting ring 400. The inner diameter of the annular protrusion 401 is larger than the outer diameter of the spline sleeve 301. A ball bearing 402 is provided at each end of the annular protrusion 401. The inner ring of the ball bearing 402 is in contact with the spline sleeve 301, and its outer ring is in contact with the mounting ring 400.

[0038] like Figure 5 The outer circumference of the spline sleeve 301 is stepped, meaning the outer diameter of one end is larger than that of the other end. The spline sleeve 301 has an annular member 304 at its smaller diameter end, with an annular groove 303 between the annular member 304 and the larger diameter end, facilitating the installation of the mounting ring 400. One ball bearing 402 is fitted onto the smaller diameter end of the spline sleeve 301, and the spline sleeve 301 is inserted into the mounting ring 400. The ball bearing 402 is then secured by the annular protrusion 401 and the spline sleeve 301. Then, another ball bearing 402 is fitted onto the spline sleeve 301, and finally the annular member 304 is installed. The other ball bearing 402 is then secured by the annular member 304 and the annular protrusion 401.

[0039] like Figure 1 , Figure 2 The transmission pulley 302 is fixed to the spline sleeve 301 by the mounting cover 305. The mounting cover 305 is annular, and its end face fits into the end face of the spline sleeve 301 and the transmission pulley 302. The mounting cover 305 is fixed to the spline sleeve 301 and the transmission pulley 302 by screws.

[0040] like Figures 2-5 The mounting ring 400 is located at the end of the spline sleeve 301 near the outer casing 100. A ring edge 404 is located at the end of the mounting ring 400 away from the outer casing 100. A fixing part 405 is located on one side of the ring edge 404. The mounting ring is connected and fixed to the external base through the fixing part. A cylindrical space 105 is provided at the end of the outer casing 100 near the mounting ring 400. The outer diameter of the mounting ring is smaller than the diameter of the cylindrical space 105, and the outer diameter of the ring edge 404 is larger than the diameter of the cylindrical space 105. Most of the spline shaft is located within the cylindrical space 105, with a section exposed for easy installation of the spline sleeve 301.

[0041] like Figure 1 , Figure 3 and Figure 6 A drive unit 500 is provided on one side of the outer casing 100. The drive unit 500 includes a transmission screw 501 fixed to the outer casing 100 and a transmission nut 502 mounted on the transmission screw 501. The transmission nut 502 is rotatably mounted on a mounting base 503. The interior of the transmission nut 502 meshes with the transmission screw 501, and the exterior of the transmission nut 502 is provided with worm gear teeth. In this device, after the mounting base 503 is fixed to the outer casing, the transmission nut 502 is rotated through the worm gear on the casing (the worm gear is driven to rotate by a servo motor), causing the transmission screw 501 to move up and down. Since the transmission screw 501 is fixed to the outer casing 100, the outer casing is moved up and down by the drive unit 500.

[0042] like Figures 1-6 This device features a linear encoder 600 directly above the spline shaft 202. This is existing technology and will not be elaborated upon. Its resolution is 0.0001mm. Currently, this technology can achieve a repeatability positioning accuracy of less than 0.0005mm for the up-and-down movement of the grinding power head and a positioning accuracy of less than 0.001mm. In this device, the precision of the machined parts is guaranteed: parallelism ≤ 0.002mm; straightness ≤ 0.002mm; flatness ≤ 0.002mm. The thickness consistency error of mass-produced parts is guaranteed to be ≤ ±0.002mm.

[0043] In this device, the transmission pulley 302 is connected to an external motor via a belt. The motor drives the transmission pulley 302 to rotate, and the splined shaft 301, which is fixed to the transmission pulley 302, is also driven to rotate. This rotation, via the spindle 200, causes the grinding wheel 201 to rotate. Then, the drive unit 500 pushes the housing 100 to move, grinding the workpiece. In traditional machining power heads, such as the prior art with patent number 201921710933.4, the belt needs to move up and down with the pulley during operation, resulting in severe belt wear and frequent replacement. Furthermore, the tension of the transmission belt is not applied to the spindle but is unloaded onto the machine bed through the splined sleeve. The advantage of this is that the grinding power head is not affected by radial external forces when rotating and feeding, improving the smoothness of the grinding power head's operation and the stability of the part quality. This device has very high machining accuracy.

[0044] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A spline-driven grinding power device for a grinding machine for air conditioner compressor parts, characterized in that, include: The outer shell is ring-shaped; The spindle is located inside the housing, with both ends limited by end caps. A bearing is installed between the spindle and the housing. One end of the spindle is connected to a grinding wheel below the housing, and the other end is provided with a splined shaft extending to the top of the housing. The transmission part includes a spline sleeve that mates with a spline shaft. The spline sleeve is fitted onto the spline shaft, and a mounting ring and a transmission pulley are connected to the outer periphery of the spline sleeve. The spline sleeve is rotatably connected to the mounting ring, and the spline sleeve and the transmission pulley are fixedly connected.

2. The spline-driven grinding power device for an air conditioner compressor parts grinding machine as described in claim 1, characterized in that, The mounting ring is fitted into the annular groove on the spline sleeve. An annular protrusion is provided on the inner wall of the mounting ring. The inner diameter of the annular protrusion is larger than the outer diameter of the spline sleeve. A ball bearing is provided at each end of the annular protrusion. The inner ring of the ball bearing fits into the spline sleeve, and its outer ring fits into the mounting ring.

3. The spline-driven grinding power device for an air conditioner compressor parts grinding machine as described in claim 2, characterized in that, The outer periphery of the spline sleeve is stepped, meaning that the outer diameter of one end is larger than that of the other end. The spline sleeve has an annular part at the small diameter end, and there is an annular groove between the annular part and the large diameter end to facilitate the installation of the installation ring.

4. The spline-driven grinding power device for a grinding machine for air conditioner compressor parts as described in claim 1, characterized in that, The drive pulley is fixed to the spline sleeve by a mounting cover. The mounting cover is annular, and its end face fits into the spline sleeve and the drive pulley. The mounting cover is fixedly connected to the spline sleeve and the drive pulley respectively.

5. The spline-driven grinding power device for a grinding machine for air conditioner compressor parts as described in claim 1, characterized in that, The mounting ring is located at one end of the spline sleeve near the outer shell, and a ring edge is provided at the end of the mounting ring away from the outer shell. A fixing part is provided on one side of the ring edge. A cylindrical space is provided at the end of the outer shell near the mounting ring. The outer diameter of the mounting ring is smaller than the diameter of the cylindrical space, and the outer diameter of the ring edge is larger than the diameter of the cylindrical space.

6. The spline-driven grinding power device for a grinding machine for air conditioner compressor parts as described in claim 1, characterized in that, A drive unit is provided on one side of the housing. The drive unit includes a transmission screw fixed to the housing and a transmission nut mounted on the transmission screw. The transmission nut is rotatably mounted on a mounting base. The inside of the transmission nut meshes with the transmission screw, and the outside of the transmission nut is provided with worm gear teeth.

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