High-efficiency grinding tool bar for a trochoid motor stator sleeve

Abstract

The utility model discloses a kind of high-efficiency grinding cutter bars of trochoid motor stator sleeve, including cutter bar frame body and motor stator sleeve, CBN grinding wheel and axle rod are arranged in the cutter bar frame body, wherein, fixed side plate is installed in cutter bar frame body side, rectangular let space is between the cutter bar frame body and the fixed side plate, the axle rod is installed between the cutter bar frame body and the fixed side plate, CBN grinding wheel is rotatably connected in the axle rod side wall, CBN grinding wheel side is installed with synchronous pulley, synchronous pulley side wall is equipped with synchronous belt, driving mechanism corresponding with the synchronous belt position is provided on the cutter bar frame body upper portion;Through the cooperation of CBN grinding wheel, synchronous pulley, synchronous belt and driving mechanism, the improvement of CBN grinding wheel rotating speed is realized, and cutter bar can be deeply into the internal processing of part, greatly shorten processing time, improve processing efficiency, meet large-scale production demand, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of grinding tool holder technology, specifically a high-efficiency grinding tool holder for a cycloidal motor stator sleeve. Background Technology

[0002] In the field of mechanical manufacturing, cycloidal motors are widely used, and the quality and efficiency of their stator sleeve machining are crucial. Currently, cycloidal motor stator sleeve machining technology has significant shortcomings. Traditional machining tool holders operate at low speeds, limiting capacity increases during large-scale production, resulting in high production costs and severely weakening product market competitiveness. Furthermore, as machining speeds increase, the heat dissipation problem of the bearings inside the grinding wheel becomes prominent. At high speeds, the bearings generate a large amount of heat, which existing cooling methods cannot meet, leading to accelerated bearing wear, decreased precision, frequent replacements increasing equipment maintenance costs, and increasing the risk of machining failures, affecting product quality and production schedules. Simultaneously, temperature changes during machining cause thermal expansion and contraction of parts, resulting in dimensional deviations. This leads to poor fit between the stator sleeve and other components, significantly impacting the overall performance and reliability of the cycloidal motor.

[0003] Therefore, this utility model provides a high-efficiency grinding tool holder for a cycloidal motor stator sleeve. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high-efficiency grinding tool holder for a cycloidal motor stator sleeve, thereby solving the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency grinding tool holder for a cycloidal motor stator sleeve, comprising a tool holder body and a motor stator sleeve. A CBN grinding wheel and a shaft are disposed within the tool holder body. A fixed side plate is mounted on one side of the tool holder body, and a rectangular clearance space exists between the tool holder body and the fixed side plate. The shaft is installed between the tool holder body and the fixed side plate. The CBN grinding wheel is rotatably connected to the side wall of the shaft. A synchronous pulley is mounted on one side of the CBN grinding wheel, and a synchronous belt is sleeved on the side wall of the synchronous pulley. A drive mechanism corresponding to the position of the synchronous belt is disposed above the tool holder body. Two bearings are disposed between the CBN grinding wheel and the shaft. An injection port and a positioning bolt are disposed on the shaft. A cooling channel is formed inside the shaft, and the cooling channel communicates with the space where the bearings are located.

[0006] Preferably, the tool holder body and the fixed side plate are connected and fixed by a number of bolts, a pin is fixedly connected to one side of the fixed side plate, and a pin hole is opened on one side of the tool holder body, and the pin is inserted into the pin hole.

[0007] Preferably, a threaded sleeve is installed on the inner side of the tool holder body, the shaft is threaded to the inner wall of the threaded sleeve, and the threaded sleeve contacts one of the bearing sidewalls.

[0008] Preferably, a retaining ring is fitted on the side of the threaded sleeve near the tool holder body, and a plurality of fastening bolts are provided on the retaining ring, all of which are threaded to the inner wall of the CBN grinding wheel.

[0009] Preferably, the CBN grinding wheel is provided with an outer washer and an inner washer, both of which are located between the two bearings. Beneficial effects

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] (1) This utility model improves the rotational speed of the CBN grinding wheel by using the CBN grinding wheel, timing pulley, timing belt and drive mechanism in combination, and the tool holder can penetrate deep into the part for processing, which greatly shortens the processing time, improves the processing efficiency, meets the needs of large-scale production and reduces production costs.

[0012] (2) In this utility model, coolant or cooling gas is guided into the annular groove of the CBN grinding wheel through the cooling channel. The coolant or cooling gas discharges the high temperature generated by the rotational friction of the bearing and shaft during operation, so as to prevent the high temperature from damaging the parts of the device. This ensures that the bearing and shaft maintain good working condition when running at high speed, extends the service life, and ensures the stable operation of the device. In addition, the coolant or cooling gas can pass through the bearing and be released in the rectangular space between the tool holder and the fixed side plate. The coolant or cooling gas can act on the motor stator sleeve to cool down the processed motor stator sleeve. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0015] Figure 3 This is a partial side view enlarged structural schematic diagram of this utility model.

[0016] In the diagram: 1. Tool holder body; 11. Fixed side plate; 111. Pin; 12. Threaded sleeve; 13. Retaining ring; 14. Fastening bolt; 2. Motor stator sleeve; 3. CBN grinding wheel; 31. Synchronous pulley; 32. Synchronous belt; 33. Drive mechanism; 34. Bearing; 35. Outer washer; 36. Inner washer; 4. Shaft; 41. Inlet; 42. Positioning bolt; 43. Cooling channel. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 A high-efficiency grinding tool holder for a cycloidal motor stator sleeve includes a tool holder body 1 and a motor stator sleeve 2. A CBN grinding wheel 3 and a shaft 4 are arranged inside the tool holder body 1.

[0019] Among them, a fixed side plate 11 is installed on one side of the tool holder 1, and there is a rectangular clearance space between the tool holder 1 and the fixed side plate 11. The shaft 4 is installed between the tool holder 1 and the fixed side plate 11.

[0020] It should be noted that the CBN grinding wheel 3 and the shaft 4 described in this embodiment are both located in the rectangular clearance space between the tool holder body 1 and the fixed side plate 11.

[0021] The CBN grinding wheel 3 is rotatably connected to the side wall of the shaft 4. A timing pulley 31 is installed on one side of the CBN grinding wheel 3. A timing belt 32 is sleeved on the side wall of the timing pulley 31. A drive mechanism 33 corresponding to the position of the timing belt 32 is provided above the tool holder 1.

[0022] It should be noted that the drive mechanism 33 described in this embodiment drives the synchronous pulley 31 to rotate synchronously via the synchronous belt 32.

[0023] Two bearings 34 are provided between the CBN grinding wheel 3 and the shaft 4. The shaft 4 is provided with an injection port 41 and a positioning bolt 42. A cooling channel 43 is provided inside the shaft 4, and the cooling channel 43 is connected to the space where the bearings 34 are located.

[0024] It should be noted that the CBN grinding wheel 3 described in this embodiment has an annular groove on one side to accommodate the two bearings 34.

[0025] Specifically, to address the issues of low grinding efficiency in the motor stator sleeve 2 and the impact of overheating of the grinding workpiece shaft on processing results and service life, the tool holder 1 supports the CBN grinding wheel 3 via a shaft 4. The CBN grinding wheel 3 is fitted onto the outside of the shaft 4, and it rotates synchronously with the synchronous pulley 31 on the side wall of the shaft 4. By controlling the operation of the drive mechanism 33, the output shaft of the drive mechanism 33 drives the synchronous pulley 31 to rotate synchronously via the synchronous belt 32, enabling the synchronous belt 32 to drive the CBN grinding wheel 3 to rotate. The CBN grinding wheel 3 grinds the inner side of the motor stator sleeve 2, increasing its rotational speed. This allows the tool holder to penetrate deeper into the part for processing, significantly shortening processing time, improving processing efficiency, meeting the needs of large-scale production, and reducing production costs. Furthermore, components such as the tool holder 1, CBN grinding wheel 3, and shaft 4 can enter the inner side of the motor stator sleeve 2 for processing, reducing the impact on the equipment body. The design minimizes interference and offers greater flexibility and convenience. The shaft 4 provides internal support for the CBN grinding wheel 3 via two bearings 34, reducing the rotational friction resistance between the CBN grinding wheel 3 and the shaft 4. This facilitates the rotational drive of the CBN grinding wheel 3. The shaft 41 connects to the external pipeline, allowing coolant or cooling gas to enter the cooling channel 43. The cooling channel 43 guides the coolant or cooling gas into the annular groove of the CBN grinding wheel 3 through branch channels. The coolant or cooling gas dissipates the high temperature generated by the rotational friction of the bearings 34 and the shaft 4 during operation, ensuring timely cooling of the bearings 34 and the shaft 4. This prevents damage to the device components caused by high temperatures, ensuring that the bearings 34 and the shaft 4 maintain good working condition during high-speed operation, extending their service life, and guaranteeing stable operation of the device. The positioning bolt 42 ensures that there is no displacement or rotational wobbling between the shaft 4 and the tool holder body 1.

[0026] In one embodiment of this utility model, such as Figures 1-3 As shown, the tool holder 1 and the fixed side plate 11 are connected and fixed by several bolts. A pin 111 is fixedly connected to one side of the fixed side plate 11, and a pin hole is opened on one side of the tool holder 1, into which the pin 111 is inserted.

[0027] Specifically, when the tool holder is subjected to vibration and impact during grinding, the pin 111 can assist bolts and other connecting parts to enhance the stability of the connection between the various parts of the tool holder. The pin 111 fits tightly with the pin hole to prevent relative rotation or displacement between the parts, thus avoiding the CBN grinding wheel 3 from shaking due to loose connection and affecting the machining accuracy.

[0028] In one embodiment of this utility model, such as Figures 1-3 As shown, a threaded sleeve 12 is installed on the inner side of the tool holder 1, and the shaft 4 is threaded to the inner wall of the threaded sleeve 12. The threaded sleeve 12 is in contact with the side wall of one of the bearings 34.

[0029] It should be noted that the shaft 4 described in this embodiment is connected and fixed to the tool holder body 1 through the threaded sleeve 12.

[0030] Specifically, while the shaft 4 is clamped by the tool holder 1 and the fixed side plate 11, the tool holder 1 is connected to the shaft 4 through the threaded sleeve 12, so that the connection between the shaft 4 and the tool holder 1 is more stable and the shaft 4 is prevented from shaking.

[0031] In one embodiment of this utility model, such as Figures 1-3 As shown, a retaining ring 13 is fitted on the side of the threaded sleeve 12 near the tool holder body 1. Several fastening bolts 14 are provided on the retaining ring 13, and the fastening bolts 14 are all threadedly connected to the inner wall of the CBN grinding wheel 3.

[0032] It should be noted that the threaded sleeve 12, retaining ring 13 and fastening bolt 14 described in this embodiment are all located on the side of the CBN grinding wheel 3 closest to the tool holder body 1.

[0033] Specifically, the retaining ring 13 is connected and fixed to the CBN grinding wheel 3 by several fastening bolts 14. The retaining ring 13 is stuck on the outside of the threaded sleeve 12, so that the CBN grinding wheel 3 will not move laterally during use, thus further improving the stability of use.

[0034] In one embodiment of this utility model, such as Figures 1-3 As shown, the CBN grinding wheel 3 is provided with an outer washer 35 and an inner washer 36, both of which are located between two bearings 34.

[0035] It should be noted that there is a gap between the outer washer 35 and the inner washer 36 described in this embodiment.

[0036] Specifically, the outer washer 35 and the inner washer 36 correspond to the inner and outer rings of the two bearings 34, respectively, which improves the cooperation between the two bearings 34 when they are working. Furthermore, the coolant or cooling gas delivered by the cooling channel 43 can pass through one bearing 34 and then through the gap between the outer washer 35 and the inner washer 36 to reach the other bearing 34 for cooling. After passing through the second bearing 34, the coolant or cooling gas is released into the rectangular space between the tool holder body 1 and the fixed side plate 11. The coolant or cooling gas can act on the motor stator sleeve 2 to cool the processed motor stator sleeve 2.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] Working Principle: During use, the tool holder 1 drives the CBN grinding wheel 3, shaft 4, and other components into the interior of the motor stator sleeve 2, reducing interference from the large size of the equipment and making it more flexible and convenient to use. By controlling the drive mechanism 33, the output shaft of the drive mechanism 33 drives the synchronous pulley 31 to rotate synchronously via the synchronous belt 32. This allows the synchronous belt 32 to drive the CBN grinding wheel 3 to rotate, grinding the inner side of the motor stator sleeve 2. Increasing the rotational speed of the CBN grinding wheel 3 allows for deeper processing of the part, significantly shortening processing time, improving processing efficiency, meeting the needs of large-scale production, and reducing production costs. Meanwhile, the external pipeline delivers coolant or cooling gas into the cooling channel 43 through the injection port 41. The cooling channel 43 guides the coolant or cooling gas into the annular groove of the CBN grinding wheel 3 through branch channels. The coolant or cooling gas can pass through one bearing 34 and then through the gap between the outer washer 35 and the inner washer 36 to reach another bearing 34 for cooling. After passing through the second bearing 34, the coolant or cooling gas is released into the rectangular space between the tool holder body 1 and the fixed side plate 11. The coolant or cooling gas can act on the motor stator sleeve 2 to cool the processed motor stator sleeve 2.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency grinding tool holder for a cycloidal motor stator sleeve, comprising a tool holder body (1) and a motor stator sleeve (2), characterized in that, The tool holder (1) is equipped with a CBN grinding wheel (3) and a shaft (4), wherein, A fixed side plate (11) is installed on one side of the tool holder (1), and there is a rectangular clearance space between the tool holder (1) and the fixed side plate (11). The shaft (4) is installed between the tool holder (1) and the fixed side plate (11). The CBN grinding wheel (3) is rotatably connected to the side wall of the shaft (4). A synchronous pulley (31) is installed on one side of the CBN grinding wheel (3). A synchronous belt (32) is sleeved on the side wall of the synchronous pulley (31). A drive mechanism (33) corresponding to the position of the synchronous belt (32) is provided above the tool holder (1). Two bearings (34) are provided between the CBN grinding wheel (3) and the shaft (4). The shaft (4) is provided with an injection port (41) and a positioning bolt (42). A cooling channel (43) is provided inside the shaft (4), and the cooling channel (43) is connected to the space where the bearing (34) is located.

2. The high-efficiency grinding tool holder for the cycloidal motor stator sleeve according to claim 1, characterized in that, The tool holder (1) is connected and fixed to the fixed side plate (11) by a number of bolts. A pin (111) is fixedly connected to one side of the fixed side plate (11). A pin hole is opened on one side of the tool holder (1), and the pin (111) is inserted into the pin hole.

3. The high-efficiency grinding tool holder for the cycloidal motor stator sleeve according to claim 1, characterized in that, A threaded sleeve (12) is installed on the inner side of the tool holder (1), and the shaft (4) is threaded to the inner wall of the threaded sleeve (12). The threaded sleeve (12) is in contact with the side wall of one of the bearings (34).

4. The high-efficiency grinding tool holder for the cycloidal motor stator sleeve according to claim 3, characterized in that, The threaded sleeve (12) is fitted with a retaining ring (13) on the side near the tool holder (1). The retaining ring (13) is provided with several fastening bolts (14), and the fastening bolts (14) are threaded to the inner wall of the CBN grinding wheel (3).

5. The high-efficiency grinding tool holder for the cycloidal motor stator sleeve according to claim 1, characterized in that, The CBN grinding wheel (3) is provided with an outer washer (35) and an inner washer (36), both of which are located between the two bearings (34).

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