Tool for machining planetary gear

Abstract

The utility model relates to the technical field of planetary gear machining, and discloses a planetary gear machining tool which comprises a mounting base, a pressing plate detachably connected to the mounting base and used for fixing a body of a planetary gear and a positioning block arranged on the mounting base, and the positioning block is used for stretching into an avoiding notch of the body to position the body. When a through hole is formed in the body of the planetary gear, the tool is fixed to drilling equipment firstly, then the body is installed on the installation base, meanwhile, the positioning blocks stretch into the avoiding notches, and then the body is arranged in the avoiding notches in the two opposite sides of the body in a penetrating mode so that the body can be fixed through the pressing plate; and then drilling operation is carried out on the body. When the body is fixed, the body is positioned by the positioning block, so that the position of the body needing to be perforated is opposite to the drill bit, the accuracy of the perforating position of the body is improved, the situation that the perforating position of the through hole deviates is avoided, and the machining precision of the through hole is guaranteed.

Description

Technical Field

[0001] This application belongs to the technical field of planetary gear processing, and particularly relates to a tooling for planetary gear processing. Background Art

[0002] With the continuous progress of technology, planetary gear transmission is also constantly developing. Common planetary gears include a body with a receiving cavity, a central gear disposed in the receiving cavity, and side gears disposed on the periphery of the central gear and meshing with the central gear for transmission. A relief notch is provided on the periphery of the body corresponding to the side gears, and the side gears are located in the relief notches, and at least a part of the side gears protrudes from the side of the body through the relief notches. Since the side gears are rotatably connected to the body, through holes need to be provided on the body corresponding to the side gears so that the rotating shafts of the side gears can extend into the through holes to achieve the rotational connection between the side gears and the body.

[0003] Since the installation position of the side gears directly affects the transmission efficiency between the central gear and the side gears, higher requirements are imposed on the opening position and machining accuracy of the through holes. Currently, when opening through holes in the body, a pressing plate is usually used to fix the body. Since the pressing plate cannot position the body, the opening position of the through hole may deviate and the machining accuracy of the through hole may be affected. Utility Model Content

[0004] This application provides a tooling for planetary gear processing to ensure the accuracy of the opening position of the through hole and the machining accuracy of the through hole.

[0005] The technical solution adopted by this application is as follows:

[0006] A tooling for planetary gear processing includes a mounting base, a pressing plate detachably connected to the mounting base and used for fixing the body of the planetary gear, and a positioning block disposed on the mounting base. The positioning block is used to extend into the relief notch of the body to position the body.

[0007] By adopting the above technical solution, when opening a through hole in the body of the planetary gear, first fix the tooling on the drilling equipment, then install the body on the mounting base, and at the same time make the positioning block extend into the relief notch, and then pass the body through the opposite relief notches on the body so that the pressing plate fixes the body, and then perform the drilling operation on the body. Since the positioning block positions the body when fixing the body, the position where the body needs to be drilled is opposite to the drill bit, thereby increasing the accuracy of the opening position of the body, avoiding the deviation of the opening position of the through hole, and thus ensuring the machining accuracy of the through hole.

[0008] Optionally, the mounting seat is provided with a fixing block, the fixing block is provided with a sliding cavity, and the positioning block is slidably connected to the sliding cavity.

[0009] By adopting the above technical solution, since the positioning block is slidably connected to the sliding cavity, when positioning and fixing the body, the body can be first placed on the mounting seat, and then the positioning block is slid, so that the positioning block extends into the avoidance notch of the body to position the body, thereby reducing the installation difficulty of the body and improving the processing efficiency of the body.

[0010] Optionally, the positioning block is provided with a locking member, and the locking member is threadedly connected to the positioning block, so that the locking member has a locking position against the fixing block and an unlocking position separated from the fixing block.

[0011] By adopting the above technical solution, after the positioning block extends into the avoidance notch of the body, the locking member is operated, so that the locking member moves from the unlocking position to the locking position, that is, the locking member abuts against the fixing block to lock the positioning block, thereby increasing the stability of the positioning block, increasing the positioning effect of the positioning block on the body, and enabling the positioning block to assist the pressing plate to fix the body, so as to further increase the fixing stability of the body and further ensure the processing accuracy of the body.

[0012] Optionally, the fixing block is provided with a fitting groove for accommodating the locking member. The fixing block has a first end close to the body and a second end opposite to the first end. The depth of the fitting groove gradually increases from the second end to the first end.

[0013] By adopting the above technical solution, since the depth of the fitting groove gradually increases from the second end to the first end, the connection stability between the locking member and the fixing block when the locking member is in the locking position can be increased, so as to further prevent the positioning block from moving away from the body, thereby further ensuring the stability of the body and further improving the processing accuracy of the body.

[0014] Optionally, the positioning block has a positioning end extending into the avoidance notch and a movable end opposite to the positioning end. The width of the positioning end gradually decreases in the direction away from the movable end.

[0015] By adopting the above technical solution, since the width of the positioning end gradually decreases in the direction away from the movable end, on the one hand, it can make the positioning block more easily extend into the avoidance notch of the body to achieve the effect of facilitating the positioning of the body; on the other hand, when the positioning block extends into the avoidance notch, the positioning block can also fine-tune the body to realize the automatic adjustment of the body, avoiding the situation that the staff needs to manually adjust the body, so as to further achieve the effect of facilitating the positioning of the body.

[0016] Optionally, the positioning block has a positioning end extending into the avoidance notch and a movable end opposite to the positioning end, and the positioning end is provided with an avoidance groove.

[0017] By adopting the above technical solution, since the positioning end is provided with an avoidance groove, the positioning block can be avoided from interfering with the drill bit of the processing equipment, so as to avoid the situation that the drilling of the body is affected due to the setting of the positioning block, and at the same time avoid the situation that the body needs to be adjusted during the drilling of the body, thereby ensuring the processing efficiency of the body.

[0018] Optionally, both ends of the pressing plate are provided with fixing bolts located on both sides of the body. The pressing plate has an inner end and an outer end opposite to the inner end. Both the inner end and the outer end are provided with strip-shaped grooves for accommodating the screw rods of the fixing bolts. The strip-shaped groove located at the inner end penetrates through the side portion of the pressing plate. Avoidance holes are provided on the inner sides of the two strip-shaped grooves. The avoidance hole located at the outer end is communicated with the strip-shaped groove located at the outer end, and the avoidance hole can allow the bolt head of the fixing bolt to pass through.

[0019] By adopting the above technical solution, when using the pressing plate to fix the body, first install the pressing plate so that the avoidance hole located at the outer end of the pressing plate is opposite to one of the fixing bolts, and then lower the pressing plate so that the bolt head of the fixing bolt passes through the avoidance hole, and then push the pressing plate towards the inner end of the pressing plate, so that the screw rod of the fixing bolt opposite to the strip-shaped groove located at the inner end enters the strip-shaped groove, and the fixing bolt opposite to the outer end moves to the strip-shaped groove at the outer end, and then rotate the two fixing bolts, so that the fixing bolts apply a downward pressure to the pressing plate, and finally the pressing plate presses the body under the action of the fixing bolts to realize the fixing of the body. During the disassembly and assembly of the body, the situation of disassembling and assembling the fixing bolts is avoided, thereby improving the disassembly and assembly efficiency of the body.

[0020] Optionally, the mounting seat includes a base plate and a connecting disc provided on the side portion of the base plate. The pressing plate and the positioning block are both provided on the base plate.

[0021] By adopting the above technical solution, when installing the tooling on the processing equipment, only need to fixedly connect the connecting disc to the processing equipment. At the same time, since the connecting disc is located on the side portion of the base plate, the connecting disc and the base plate form an avoidance, so as to ensure the processing efficiency of the body. In addition, the situation that the connecting disc may be damaged during the processing of the body is avoided, so as to ensure the service life of the tooling.

[0022] Optionally, the base plate is provided with a receiving hole for the bottom of the body to pass through, and a positioning pin for positioning the body is provided at the bottom of the base plate.

[0023] By adopting the above technical solution, since the basic bottom is provided with positioning pins for positioning the body, the positioning pins can accurately position the body, so as to ensure the machining accuracy of the body.

[0024] Optionally, an installation plate is detachably connected to the side of the substrate, the positioning pin is arranged on the installation plate, and the inner end of the positioning pin has a positioning section that can extend into the body.

[0025] By adopting the above technical solution, since the installation plate is detachably connected to the substrate and the positioning pin is arranged on the installation plate, it is possible to selectively install the positioning pin when machining the body, so as to improve the machining efficiency of the body. At the same time, the positioning section can extend into the body, which can increase the positioning effect on the body, so as to further ensure the machining accuracy of the body.

[0026] Due to the adoption of the above technical solution, the beneficial effects obtained by this application are as follows:

[0027] 1. The tooling in this application includes a mounting base, a pressing plate detachably connected to the mounting base and used for fixing the body of the planetary gear, and a positioning block arranged on the mounting base. The positioning block is used to extend into the avoidance notch of the body to position the body. When drilling a through hole in the body of the planetary gear, first fix the tooling on the drilling equipment, then install the body on the mounting base, and at the same time make the positioning block extend into the avoidance notch, and then pass the body through the avoidance notches on the opposite sides of the body, so that the pressing plate fixes the body, and then perform the drilling operation on the body. Since the positioning block positions the body when fixing the body, the position where the through hole needs to be opened on the body is opposite to the drill bit, which increases the accuracy of the opening position of the body, thus avoiding the deviation of the opening position of the through hole, and further ensuring the machining accuracy of the through hole.

[0028] 2. The mounting base in this application is provided with a fixing block, the fixing block is provided with a sliding cavity, and the positioning block is slidably connected to the sliding cavity. Since the positioning block is slidably connected to the sliding cavity, when positioning and fixing the body, the body can be first placed on the mounting base, and then the positioning block can be slid, so that the positioning block extends into the avoidance notch of the body to position the body, thereby reducing the installation difficulty of the body and further improving the machining efficiency of the body.

[0029] 3. The positioning block in this application is provided with a locking member. The locking member is threadedly connected to the positioning block, so that the locking member has a locking position against the fixed block and an unlocking position separated from the fixed block. After the positioning block is inserted into the avoidance notch of the main body, the locking member is operated, and then the locking member moves from the unlocking position to the locking position, that is, the locking member abuts against the fixed block to lock the positioning block, thereby increasing the stability of the positioning block, increasing the positioning effect of the positioning block on the main body, and at the same time enabling the positioning block to assist the pressing plate to fix the main body, so as to further increase the fixing stability of the main body, and further ensure the processing accuracy of the main body. Description of the Drawings

[0030] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0031] Figure 1 Schematic structural diagram of the tooling under an embodiment of the present application, and the state of fixing the main body is shown in this drawing;

[0032] Figure 2 Schematic structural diagram of the tooling under an embodiment of the present application;

[0033] Figure 3 Partial schematic structural diagram of the tooling under an embodiment of the present application;

[0034] Figure 4 Schematic structural diagram of the positioning block under an embodiment of the present application;

[0035] Figure 5 Schematic structural diagram of the pressing plate under an embodiment of the present application;

[0036] Figure 6 Another perspective schematic structural diagram of the tooling under an embodiment of the present application, and the state of the positioning pin positioning the main body is shown in this drawing.

[0037] Reference Signs:

[0038] 1. Mounting base; 11. Substrate; 111. Fixed block; 112. Sliding cavity; 113. Fitting groove; 114. Mounting plate; 115. Positioning pin; 12. Connecting disk; 2. Pressing plate; 21. Fixed bolt; 22. Strip-shaped groove; 23. Avoidance hole; 3. Positioning block; 31. Locking member; 32. Avoidance groove; 4. Main body. Detailed Description of the Embodiment

[0039] In order to more clearly explain the overall concept of the present application, the following is a detailed description by way of example in conjunction with the drawings of the specification.

[0040] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of the present application and the features in each embodiment may be combined with each other.

[0041] In addition, in the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "top", "bottom", "inside", "outside", "axial direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0042] In the present application, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0044] Referring to Figures 1 to 6 , a tooling for machining a planetary gear is disclosed, which includes a mounting base 1, a pressing plate 2 detachably connected to the mounting base 1 and used for fixing the body 4 of the planetary gear, and a positioning block 3 provided on the mounting base 1. The positioning block 3 is used to extend into the avoidance notch of the body 4 to position the body 4.

[0045] When opening a through-hole in the body 4 of the planetary gear, first fix the tooling on the drilling equipment, then install the body 4 on the mounting seat 1, and at the same time make the positioning block 3 extend into the avoidance notch. Then pass the body 4 through the avoidance notches on the opposite sides of the body 4, so that the pressing plate 2 fixes the body 4, and then perform the drilling operation on the body 4. Since when fixing the body 4, the positioning block 3 positions the body 4, thus making the position where the through-hole needs to be opened on the body 4 opposite to the drill bit, so as to increase the accuracy of the opening position of the body 4, thereby avoiding the situation that the opening position of the through-hole deviates, and further ensuring the machining accuracy of the through-hole.

[0046] In a preferred embodiment, referring to Figure 1 , Figure 2 , Figure 3 and Figure 6 , the mounting seat 1 is provided with a fixing block 111, the fixing block 111 is provided with a sliding cavity 112, and the positioning block 3 is slidably connected to the sliding cavity 112.

[0047] Since the positioning block 3 is slidably connected to the sliding cavity 112, when positioning and fixing the body 4, the body 4 can be first placed on the mounting seat 1, and then the positioning block 3 is slid, so that the positioning block 3 extends into the avoidance notch of the body 4 to position the body 4, thereby reducing the installation difficulty of the body 4 and further improving the machining efficiency of the body 4.

[0048] Preferably, the fixing block 111 is fixedly connected to the mounting seat 1 by bolts to increase the stability when the positioning block 3 positions the body 4. In other embodiments, the fixing block 111 can also be fixedly connected to the mounting seat 1 by other fixing methods such as welding.

[0049] This application does not specifically limit the structure of the positioning block 3. Preferably, referring to Figure 1 , Figure 2 and Figure 4 , the positioning block 3 has a structure with an isosceles trapezoid cross-section perpendicular to its own length direction, and the sliding cavity 112 has a structure matching the positioning block 3 to increase the connection stability between the positioning block 3 and the fixing block 111. In other embodiments, the positioning block 3 can also have a structure with a square or other cross-sectional shape. At this time, a block structure matching the sliding cavity 112 needs to be provided on the positioning block 3 to achieve the sliding connection between the positioning block 3 and the fixing block 111.

[0050] In a preferred embodiment, referring to Figure 2 and Figure 4 , the positioning block 3 is provided with a locking member 31, and the locking member 31 is threadedly connected to the positioning block 3, so that the locking member 31 has a locking position against the fixing block 111 and an unlocking position separated from the fixing block 111.

[0051] After inserting the positioning block 3 into the avoidance notch of the main body 4, operate the locking member 31, and then move the locking member 31 from the unlocked position to the locked position, that is, the locking member 31 abuts against the fixed block 111 to lock the positioning block 3, thereby increasing the stability of the positioning block 3, increasing the positioning effect of the positioning block 3 on the main body 4, and at the same time enabling the positioning block 3 to assist the pressing plate 2 to fix the main body 4, so as to further increase the fixing stability of the main body 4, and further ensure the processing accuracy of the main body 4.

[0052] This application does not specifically limit the structure of the locking member 31. Preferably, the locking member 31 is an internal hexagon bolt to increase the locking stability of the locking member 31 on the positioning block 3. In other embodiments, the locking member 31 can also be other types of bolts.

[0053] Preferably, an operating rod is fixedly connected to the bolt head of the internal hexagon bolt, and the operating rod is perpendicular to the internal hexagon bolt, so as to facilitate the operation of the locking member 31 by the staff and increase the unlocking methods of the positioning block 3.

[0054] Further, referring to Figure 3 , the fixed block 111 is provided with a mating groove 113 for accommodating the locking member 31. The fixed block 111 has a first end close to the main body 4 and a second end opposite to the first end. The depth of the mating groove 113 gradually increases from the second end to the first end, and then the connection stability between the locking member 31 and the fixed block 111 when the locking member 31 is in the locked position can be increased, so as to further avoid the situation that the positioning block 3 moves away from the main body 4, thereby further ensuring the stability of the main body 4 and further improving the processing accuracy of the main body 4.

[0055] In a preferred embodiment, referring to Figure 2 and Figure 4 , the positioning block 3 has a positioning end extending into the avoidance notch and a movable end opposite to the positioning end. The width of the positioning end gradually decreases in the direction away from the movable end. On the one hand, it can make the positioning block 3 more easily extend into the avoidance notch of the main body 4 to facilitate the positioning of the main body 4; on the other hand, when the positioning block 3 extends into the avoidance notch, the positioning block 3 can also fine-tune the main body 4 to realize the automatic adjustment of the main body 4, avoiding the situation that the staff needs to manually adjust the main body 4, so as to further facilitate the positioning of the main body 4.

[0056] In a preferred embodiment, referring to Figure 2 and Figure 4, the positioning block 3 has a positioning end extending into the avoidance notch and a movable end opposite to the positioning end. The positioning end is provided with an avoidance groove 32, so that the positioning block 3 can form an avoidance with the drill bit of the processing equipment, avoiding the situation that the drilling of the body 4 is affected by the setting of the positioning block 3, and at the same time avoiding the situation that the body 4 needs to be adjusted during the drilling of the body 4, thereby ensuring the processing efficiency of the body 4.

[0057] In a preferred embodiment, referring to Figure 1 , Figure 2 and Figure 3 , both ends of the pressing plate 2 are provided with fixing bolts 21 located on both sides of the body 4. The pressing plate 2 has an inner end and an outer end opposite to the inner end. Both the inner end and the outer end are provided with strip-shaped grooves 22 for accommodating the screw rods of the fixing bolts 21. The strip-shaped groove 22 located at the inner end penetrates through the side portion of the pressing plate 2. Avoidance holes 23 are provided on the inner sides of both strip-shaped grooves 22. The avoidance hole 23 located at the outer end is communicated with the strip-shaped groove 22 located at the outer end, and the avoidance hole 23 can allow the bolt head of the fixing bolt 21 to pass through.

[0058] When using the pressing plate 2 to fix the body 4, first install the pressing plate 2 so that the avoidance hole 23 located at the outer end of the pressing plate 2 is opposite to one of the fixing bolts 21, and then lower the pressing plate 2 so that the bolt head of the fixing bolt 21 passes through the avoidance hole 23, and then push the pressing plate 2 towards the inner end of the pressing plate 2, so that the screw rod of the fixing bolt 21 opposite to the strip-shaped groove 22 located at the inner end enters the strip-shaped groove 22, and the fixing bolt 21 opposite to the outer end moves to the strip-shaped groove 22 at the outer end, and then rotate the two fixing bolts 21, so that the fixing bolts 21 apply a downward pressure to the pressing plate 2, and finally the pressing plate 2 presses the body 4 under the action of the fixing bolts 21 to achieve the fixation of the body 4.

[0059] When disassembling the pressing plate 2, first rotate the fixing bolt 21 so that the bolt head of the fixing bolt 21 is separated from the pressing plate 2, and then push the pressing plate 2 along the direction from the inner end to the outer end to separate the fixing bolt 21 located at the inner end from the strip-shaped groove 22 located at the inner end. The fixing bolt 21 located at the outer end is located in the avoidance hole 23 at the outer end, and then apply an upward pulling force to the pressing plate 2, so that the pressing plate 2 is separated from the fixing bolt 21 to complete the disassembly of the pressing plate 2.

[0060] In summary, during the disassembly and assembly of the body 4, the situation of disassembling and assembling the fixing bolts 21 is avoided, thereby improving the disassembly and assembly efficiency of the body 4.

[0061] In addition, the provision of the avoidance hole 23 can also enable the pressing plate 2 to avoid the drill bit of the processing equipment, so as to prevent the pressing plate 2 from affecting the drilling of the main body 4 by the processing equipment, thereby ensuring the processing efficiency of the main body 4.

[0062] Preferably, the fixing bolt 21 is an internal hexagonal bolt to reduce the aperture of the avoidance hole 23, thereby ensuring the structural strength of the pressing plate 2.

[0063] This application does not specifically limit the structure of the mounting seat 1. Preferably, referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 6 , the mounting seat 1 includes a base plate 11 and a connecting disk 12 provided on the side of the base plate 11. The pressing plate 2 and the positioning block 3 are both provided on the base plate 11.

[0064] When installing the tooling on the processing equipment, it is only necessary to fixedly connect the connecting disk 12 to the processing equipment. At the same time, since the connecting disk 12 is located on the side of the base plate 11, the connecting disk 12 and the base plate 11 are then made to avoid each other, so as to ensure the processing efficiency of the main body 4. In addition, when processing the main body 4, the situation where the connecting disk 12 may be damaged is avoided, so as to ensure the service life of the tooling.

[0065] It should be noted that the inner end of the pressing plate 2 refers to the end of the pressing plate 2 close to the connecting disk 12, and the outer end of the pressing plate 2 refers to the end of the pressing plate 2 far from the connecting disk 12.

[0066] In a preferred embodiment, referring to Figure 2 、 Figure 3 and Figure 6 , the base plate 11 is provided with a receiving hole for the bottom of the main body 4 to pass through, and a positioning pin 115 for positioning the main body 4 is provided at the bottom of the base plate 11, so that the positioning pin 115 can accurately position the main body 4 to ensure the processing accuracy of the main body 4.

[0067] It should be noted that since the main body 4 of the planetary gear has a high hardness, in order to ensure the processing efficiency of the main body 4 and reduce the wear of the drill bit during drilling, when drilling the main body 4, it needs to be divided into two steps. The first step is to drill a small hole in the main body 4 first, and the second step is to ream the main body 4 to form a through hole; however, when drilling a small hole in the main body 4, only the positioning block 3 needs to position the main body 4, and when reaming the main body 4, the positioning pin 115 is required to position the main body 4 to ensure the processing accuracy of the main body 4. At the same time, the situation where multiple toolings need to be used when drilling the main body 4 is avoided, so as to improve the processing efficiency of the main body 4 and reduce the processing cost of the main body 4.

[0068] Furthermore, referring to Figure 2 、 Figure 3And Figure 6 , a mounting plate 114 is detachably connected to the side of the substrate 11, a positioning pin 115 is provided on the mounting plate 114, and the inner end of the positioning pin 115 has a positioning section that can extend into the body 4.

[0069] It can be understood that the body 4 has a hole structure adapted to the positioning section. The positioning pin 115 further includes a connecting section connected to the mounting plate 114 and an operating section located on the side of the mounting plate 114 away from the body 4.

[0070] Since the mounting plate 114 is detachably connected to the substrate 11 and the positioning pin 115 is provided on the mounting plate 114, it is possible to selectively install the positioning pin 115 during the processing of the body 4, so as to improve the processing efficiency of the body 4. At the same time, the positioning section can extend into the body 4, and then the positioning effect on the body 4 can be increased to further ensure the processing accuracy of the body 4.

[0071] This application does not specifically limit the detachable connection method between the mounting plate 114 and the substrate 11. Preferably, the mounting plate 114 is detachably connected to the substrate 11 by bolts to ensure the connection stability between the mounting plate 114 and the substrate 11. In other embodiments, the mounting plate 114 can also be detachably connected to the substrate 11 by a clamping structure.

[0072] What is not described in this application can be realized by adopting or referring to the existing technology.

[0073] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other, and the key points of each embodiment are the differences from other embodiments.

[0074] The above are only the embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

1. A fixture for machining planetary gears, characterized in that, It includes a mounting base (1), a pressing plate (2) detachably connected to the mounting base (1) and used for fixing the body (4) of the planetary gear, and a positioning block (3) provided on the mounting base (1). The positioning block (3) is used to extend into the avoidance notch of the body (4) to position the body (4).

2. The fixture for machining planetary gears according to claim 1, wherein, The mounting base (1) is provided with a fixing block (111). The fixing block (111) is provided with a sliding cavity (112), and the positioning block (3) is slidably connected to the sliding cavity (112).

3. The fixture for machining planetary gears according to claim 2, characterized in that, The positioning block (3) is provided with a locking member (31). The locking member (31) is threadedly connected to the positioning block (3) so that the locking member (31) has a locking position where it abuts against the fixing block (111) and an unlocking position where it is separated from the fixing block (111).

4. A fixture for machining planetary gears according to claim 3, characterized in that, The fixing block (111) is provided with a mating groove (113) for accommodating the locking member (31). The fixing block (111) has a first end close to the body (4) and a second end opposite to the first end. The depth of the mating groove (113) gradually increases from the second end to the first end.

5. The fixture for machining planetary gears according to claim 2, wherein, The positioning block (3) has a positioning end extending into the avoidance notch and a moving end opposite to the positioning end. The width of the positioning end is gradually decreased along the direction away from the moving end.

6. The fixture for machining planetary gears according to claim 2, characterized in that, The positioning block (3) has a positioning end extending into the avoidance notch and a moving end opposite to the positioning end. The positioning end is provided with an avoidance groove (32).

7. A fixture for machining planetary gears according to claim 1, characterized in that, Both ends of the pressing plate (2) are provided with fixing bolts (21) located on both sides of the body (4). The pressing plate (2) has an inner end and an outer end opposite to the inner end. Both the inner end and the outer end are provided with strip-shaped grooves (22) for accommodating the screw rods of the fixing bolts (21). The strip-shaped groove (22) at the inner end penetrates through the side part of the pressing plate (2). Avoidance holes (23) are provided on the inner sides of both strip-shaped grooves (22). The avoidance hole (23) at the outer end is communicated with the strip-shaped groove (22) at the outer end, and the avoidance hole (23) can allow the bolt head of the fixing bolt (21) to pass through.

8. The fixture for machining planetary gears according to claim 1, characterized in that, The mounting base (1) includes a base plate (11) and a connecting disc (12) provided on the side part of the base plate (11). The pressing plate (2) and the positioning block (3) are both provided on the base plate (11).

9. A fixture for machining planetary gears according to claim 8, characterized in that, The base plate (11) is provided with an accommodation hole for the bottom of the body (4) to pass through. A positioning pin (115) for positioning the body (4) is provided at the bottom of the base plate (11).

10. The fixture for machining planetary gears according to claim 9, wherein, An installation plate (114) is detachably connected to the side part of the base plate (11). The positioning pin (115) is provided on the installation plate (114), and the inner end of the positioning pin (115) has a positioning section that can extend into the body (4).

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