Inner frame pin punching tool

Abstract

The utility model discloses an inner frame pin punching tool which ensures high precision of inner frame pin punching through reasonable positioning design, avoids the situation of reverse punching of hole sites, is particularly suitable for servo mechanism workpieces with extremely high position precision requirements, and is simple and convenient to operate and high in efficiency due to the design of the inner frame pin punching tool. According to the inner frame pin punching tool, a workpiece can be drilled and reamed after being fixed, the adjusting and positioning time is shortened, the working efficiency is improved, the tool is reasonable in structural design, short in manufacturing period, convenient to machine and manufacture and suitable for batch production, and the inner frame pin punching tool provides good stability through the multi-face design of the tool base and the connection of the C-shaped stand, and is suitable for large-scale production. According to the inner frame pin punching tool, fixing of a workpiece in the punching process is guaranteed, the precision problem caused by movement of the workpiece is avoided, the tool can be used for punching of inner frame pins, balance operation can be carried out under the condition that the clamping relation is not changed, and the assembling quality and efficiency are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of servo mechanism assembly, in particular to an inner frame pin punching tool. Background Art

[0002] A two-axis rotary servo mechanism is usually composed of an outer frame spindle, an inner frame, and a pitch frame. While the outer frame spindle drives the inner frame to rotate, the pitch frame inside the inner frame can also rotate around the axis. During drilling and assembly, it is necessary to adjust to a specific position, fix the servo mechanism workpiece, and then drill holes on the servo mechanism workpiece.

[0003] Especially in the drilling operation of the servo mechanism workpiece of aerospace products, the position accuracy requirement for the servo mechanism workpiece during drilling is very high, because the servo mechanism workpiece rotates flexibly in a free state, has a high degree of freedom, and is difficult to fix. If the direction of the inner frame is not paid attention to when drilling, the hole position will be reversed. In addition, the inner frame of the servo mechanism of aerospace products needs to drill and ream out the pin holes for the inner frame motor positioning shaft and the inner frame rotary position shaft under the high precision requirements of the design angle, coaxiality, parallelism, etc., and the inner frame motion mechanism must ensure that the parallelism with the bottom surface is less than the required zero-position pin hole of 0.015mm while ensuring the angle (54 degrees).

[0004] In the existing technology, the punching of the zero pins and pins of the inner and outer frames are carried out in the last process, and there is only installation tooling but no clamping mechanism. The product cannot be fixed after being punched and aligned, and is prone to losing the correct position. The punching and fixation cannot strictly position and clamp the servo mechanism workpiece. If a problem occurs with the assembled product and a fishbone diagram analysis is performed, there are many related influencing factors that are entangled with each other, making it difficult to analyze the root cause of the problem. The quality cannot be guaranteed, and the batch production progress is affected.

[0005] In view of this, a kind of inner frame pin punching tool is designed. Utility Model Content

[0006] The purpose of the utility model is to provide an inner frame pin punching tool to solve the problems existing in the existing technology proposed in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inner frame pin punching tool, comprising a tool base, a positioning tool and a servo mechanism component;

[0008] The side surfaces of the tooling base are, in sequence, a tooling top surface, a tooling left vertical surface, a tooling lower inclined surface, a tooling bottom surface, a tooling right vertical surface, and a tooling upper inclined surface. The tooling top surface, the tooling left vertical surface, the tooling lower inclined surface, the tooling bottom surface, the tooling right vertical surface, and the tooling upper inclined surface are arranged circumferentially in a counterclockwise direction. Two sets of adjustment pin holes are provided on the inner side and the inner side of the front side of the tooling base.

[0009] The right vertical surface of the tooling is integrally connected with a C-shaped stand;

[0010] The upper inclined surface of the tooling is fixedly connected to a positioning boss, and two sets of positioning pins are fixedly connected to the side of the positioning boss away from the upper inclined surface of the tooling at intervals, and a chip cleaning hole is opened in the positioning boss and the tooling base;

[0011] The positioning tooling includes a sleeve rod, an adjustment rod, a bracket, a support rod, a frame support and two sets of fastening bolts. The lower end of the sleeve rod is connected to the inner side of the C-shaped frame, the adjustment rod is connected to the inner side of the sleeve rod, the bracket is fixedly sleeved on the outer side of the adjustment rod, the support rod is fixedly connected to the top of the adjustment rod, and the two sets of fastening bolts are connected to the inner side of the frame support and the top of the support rod through a threaded structure.

[0012] The C-shaped stand is connected to the inner side of the lower end of the sleeve rod by a fixing pin;

[0013] The servo mechanism components include an outer frame main shaft, an inner frame and a pitch frame. The outer frame main shaft is fixedly connected to the inner frame, and the pitch frame is rotatably connected to the inner side of the inner frame. The outer frame main shaft is connected to the positioning boss, and the two sides of the inner frame are respectively connected to the inner walls of the bracket, and the pitch frame is connected to the frame support.

[0014] Preferably, the top surface of the tooling is arranged parallel to the bottom surface of the tooling, the left vertical surface of the tooling is arranged parallel to the right vertical surface of the tooling, and the lower inclined surface of the tooling is arranged parallel to the upper inclined surface of the tooling.

[0015] Preferably, a positioning mark is provided on the surface edge of the right vertical surface of the tooling.

[0016] Preferably, the bottom of the bottom surface of the tooling is integrally connected with a raising layer, the raising layer is a "U"-shaped structure, and the bottom opening of the chip cleaning hole is arranged on the inner side of the raising layer.

[0017] Preferably, the adjusting rod is connected to the inner side of the sleeve rod with clearance fit.

[0018] Preferably, the positioning boss is adaptively connected to the inner side of the bottom of the outer frame main shaft, and the two groups of positioning pins are inserted into the bottom of the outer frame main shaft.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The inner frame pin punching tool ensures high precision of inner frame pin punching through reasonable positioning design, avoiding the situation of reverse hole punching. It is particularly suitable for servo mechanism workpieces with extremely high position accuracy requirements;

[0021] 2. The design of the inner frame pin punching fixture makes the operation simple. The workpiece can be drilled and reamed after it is fixed, which reduces the time for adjustment and positioning and improves work efficiency. The fixture has a reasonable structural design, a short manufacturing cycle, and is easy to process and manufacture, making it suitable for mass production.

[0022] 3. The inner frame pin punching tool provides good stability through the multi-faceted design of the tool base and the connection with the C-shaped stand, ensuring the fixation of the workpiece during the punching process and avoiding accuracy problems caused by workpiece movement. The tool can not only be used for punching inner frame pins, but also perform balancing operations without changing the clamping relationship, further improving assembly quality and efficiency.

[0023] 4. The positioning and matching size benchmarks of the inner frame pin punching tooling and the workpiece are consistent with the matching benchmarks of product parts, ensuring the consistency of each product and reducing the occurrence of quality problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of an inner frame pin punching tooling of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a cushion layer of an inner frame pin punching tooling of the utility model;

[0026] Figure 3 This is a schematic diagram of the positioning boss structure of an inner frame pin punching tooling of the utility model;

[0027] Figure 4 This is a structural diagram of an inner frame pin punching tool in use according to the utility model;

[0028] Figure 5 A schematic diagram of the structure of a servo mechanism component in the prior art;

[0029] Figure 6 A schematic diagram of the bottom structure of a servo mechanism component in the prior art;

[0030] Figure 7 This is a front view of an inner frame pin punching tool of the utility model;

[0031] Figure 8 This is a front view of an inner frame pin punching tool in use according to the utility model;

[0032] Figure 9 This is another front view of the inner frame pin punching tool of the utility model when in use;

[0033] Figure 10 The utility model is a partial structural schematic diagram of an inner frame pin punching tool.

[0034] In the picture:

[0035] 1. Tool base; 11. Tool top surface; 12. Tool left vertical surface; 13. Tool lower inclined surface;

[0036] 14. Bottom surface of tooling; 15. Right vertical surface of tooling; 16. Upper inclined surface of tooling;

[0037] 17. Adjustment pin hole; 18. Positioning mark; 19. Elevation layer;

[0038] 2. Positioning tool; 21. Sleeve rod; 22. Adjustment rod; 23. Bracket;

[0039] 24. Support rod; 25. Frame support; 26. Fastening bolts;

[0040] 3. Positioning boss; 31. Positioning pin;

[0041] 4. Fixed pin;

[0042] 5. Servo components; 51. Outer frame spindle; 52. Inner frame; 53. Pitch frame;

[0043] 6. Chip cleaning hole;

[0044] 7. C-shaped stand. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] In the description of the utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of the utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0048] See also Figure 1-10 The utility model provides a technical solution: an inner frame pin punching tool, including a tool base 1, a positioning tool 2 and a servo mechanism component 5.

[0049] The side surfaces of the tooling base 1 are, in sequence, a tooling top surface 11, a tooling left vertical surface 12, a tooling lower inclined surface 13, a tooling bottom surface 14, a tooling right vertical surface 15, and a tooling upper inclined surface 16. The tooling top surface 11, the tooling left vertical surface 12, the tooling lower inclined surface 13, the tooling bottom surface 14, the tooling right vertical surface 15, and the tooling upper inclined surface 16 are arranged circumferentially in a counterclockwise direction. Two sets of adjustment pin holes 17 are provided on the front and rear sides of the tooling base 1.

[0050] The top surface 11 of the tooling is parallel to the bottom surface 14 of the tooling, the left vertical surface 12 of the tooling is parallel to the right vertical surface 15 of the tooling, and the lower inclined surface 13 of the tooling is parallel to the upper inclined surface 16 of the tooling. Specifically, this design improves the symmetry and stability of the tooling, ensuring the smoothness and accuracy of the workpiece during the drilling process. Figure 7-9 When used during processing, the lower inclined surface 13 of the tooling and the bottom surface 14 of the tooling can both be used as contact surfaces for the workbench placement surface.

[0051] For details, please refer to the attached manual. Figure 9 At this time, the pitch frame 53 is parallel to the bottom surface 14 of the tooling. At this time, the pitch frame 53 can be vertically punched. Figure 8 At this time, the bottom surface of the outer frame main shaft 51 is parallel to the lower inclined surface 13 of the tooling. At this time, vertical drilling operations can be performed on the outer frame main shaft 51. When the drilling head is vertically downward, the working holes at the corresponding positions can be drilled. By adjusting the tilt of the tooling base 1, drilling operations at different positions of the servo mechanism component 5 can be achieved.

[0052] A positioning mark 18 is provided on the edge of the right vertical surface 15 of the tooling. Specifically, the provision of positioning mark 18 facilitates the operator to quickly locate the positioning point when using the tooling, improving operational efficiency and accuracy. During use, positioning mark 18 reminds the operator to pay attention to the direction when installing the product on the tooling. The inner frame motor of the inner frame 52 should be placed on the side of positioning mark 18. Positioning mark 18 is marked with the word "DJ".

[0053] The C-shaped frame table 7 is integrally connected with the right vertical surface 15 of the tool.

[0054] The positioning boss 3 is fixedly connected with the upper inclined surface 16 of the tool, and two groups of positioning pins 31 are fixedly connected with the side of the positioning boss 3 away from the upper inclined surface 16 of the tool. The positioning boss 3 is provided with a scrap removal hole 6 penetratingly formed in the tool base 1.

[0055] Specifically, referring to the drawings attached to the specification Figure 3 The positioning boss 3 is fixed on the upper inclined surface 16 of the tool by bolts. The shape of the positioning boss 3 can be prefabricated and installed according to the specifications of the actual servo mechanism part 5, so that the tool can be adapted to servo mechanism parts 5 of various specifications.

[0056] The bottom of the tool bottom surface 14 is integrally connected with a raised layer 19, which is in a “U” shape, and the bottom opening of the scrap removal hole 6 is arranged on the inner side of the raised layer 19. Specifically, referring to the drawings attached to the specification Figure 2-3 The bottom surface of the raised layer 19 and the bottom surface of the C-shaped frame table 7 are located on the same horizontal plane. When the outer frame main shaft 51 is being punched, the design of the scrap removal hole 6 can avoid damage to the tool base 1 by the punching head. Moreover, the scrap removal hole 6 can be used as a waste hole to discharge the waste to the bottom surface of the tool base 1. The space on the inner side of the raised layer 19 can avoid the accumulation of waste, facilitate the cleaning of the debris generated in the processing, and keep the working environment clean.

[0057] The positioning tool 2 comprises a sleeve rod 21, an adjusting rod 22, a bracket 23, a supporting rod 24, a frame bracket 25, and two groups of fastening bolts 26. The lower end of the sleeve rod 21 is connected to the inner side of the C-shaped frame table 7. The adjusting rod 22 is connected to the inner side of the sleeve rod 21. The bracket 23 is fixedly sleeved on the outer side of the adjusting rod 22. The supporting rod 24 is fixedly connected to the top of the adjusting rod 22. The two groups of fastening bolts 26 are connected to the inner side of the frame bracket 25 and the top of the supporting rod 24 through a threaded structure.

[0058] The C-shaped frame table 7 and the lower end of the sleeve rod 21 are connected with a fixed pin 4.

[0059] The servo mechanism part 5 comprises an outer frame main shaft 51, an inner frame 52, and a pitch frame 53. The outer frame main shaft 51 is fixedly connected with the inner frame 52. The pitch frame 53 is rotatably connected to the inner side of the inner frame 52. The outer frame main shaft 51 is connected to the positioning boss 3. The inner frame 52 is connected to the inner walls of the two sides of the bracket 23. The pitch frame 53 is connected to the frame bracket 25.

[0060] Specifically, the length of the inner frame 52 is adapted to the inner length of the bracket 23, which can avoid the rotation of the outer frame main shaft 51 and the inner frame 52 during processing operations, further improving the stability of the inner frame 52, and bolts are inserted and connected on both sides of the bracket 23. When in use, the inner frame motor and the inner frame 52 can be fixed with the bolts on both sides of the bracket 23, which can effectively prevent them from moving. After installation and fixation, the pin holes of the inner frame motor positioning shaft and the inner frame rotary position shaft can be easily drilled and hinged, and the inner frame motion mechanism can ensure that the parallelism with the bottom surface is less than the zero-position pin hole requirement of 0.015mm while ensuring the angle (54 degrees).

[0061] The adjustment rod 22 is loosely connected to the inner side of the sleeve rod 21. Specifically, the adjustment of the adjustment rod 22 allows the positioning tool 2 to be flexibly adjusted to accommodate workpieces of different sizes and shapes, thereby improving the tool's applicability and operational flexibility. Furthermore, since the adjustment rod 22 is loosely connected to the sleeve rod 21, the adjustment rod 22 and bracket 23 can be lowered synchronously to avoid obstruction in the installation of the product on the tool.

[0062] The positioning boss 3 is adapted to be connected to the inner side of the bottom of the outer frame main shaft 51, and the two sets of positioning pins 31 are inserted into the bottom of the outer frame main shaft 51. Figure 3-6 The bottom of the outer frame main shaft 51 is a cylindrical trough structure. The inner diameter length of the bottom of the outer frame main shaft 51 is adapted to the outer diameter length of the positioning boss 3. The height of the inner side of the bottom of the outer frame main shaft 51 is greater than the height of the positioning boss 3, so that the bolts connected to the surface of the positioning boss 3 can be accommodated in the inner side of the bottom of the outer frame main shaft 51, and two groups of pin holes for connection of the positioning pins 31 are opened through the bottom of the outer frame main shaft 51. The positioning effect of the positioning pins 31 ensures the stability of the outer frame main shaft 51 during assembly and prevents the outer frame main shaft 51 from rotating.

[0063] Specifically, when using, first install the servo mechanism component 5, align and position it through the positioning boss 3 and the positioning pin 31, so that the bottom inner side of the outer frame main shaft 51 is connected to the positioning boss 3, and the two sets of positioning pins 31 are connected to the outer frame main shaft 51, which is consistent with the positioning method of the servo mechanism component 5 during product assembly. Then adjust the height of the adjustment rod 22, refer to the attached manual. Figure 10 , make the top of the frame support 25 contact the bottom surface of the pitch frame 53, and then pass two sets of fastening bolts 26 through the pitch frame 53 to connect to the inner side of the frame support 25 and the top of the support rod 24, and clamp the pitch frame 53 with the fastening bolts 26 and the frame support 25 to prevent the pitch frame 53 from rotating. Finally, straighten the mirror mount to achieve the required parallelism.

[0064] Specifically, this set of tooling can be used to perform balancing operations without changing the clamping relationship. Four drill bits are inserted into the four groups of adjustment pin holes 17 on both sides of the tooling, and the drill bit rods are placed on the vise. At this time, the bottom surface of the product and the line connecting the two pins can be ensured to be vertical and horizontal to the reference surface, so that balancing operations in this direction can be performed. The lower inclined surface 13 of the tooling is placed on the bottom of the vise and then clamped to perform balancing operations in this direction. This greatly improves the assembly quality and efficiency, and lays a solid foundation for mass production.

[0065] Specifically, this tooling is easy to operate. After the mirror support is straightened and fixed in the horizontal position according to the process requirements, the zero position pin hole of the inner frame can be drilled and reamed out first, which can not only ensure the accuracy of the zero position pin hole of the inner frame, but also ensure the consistency of each product. After drilling the zero position pin hole, the fixing pin holes of the mirror support, the motor shaft, and the inner frame resolver can be directly drilled and reamed out in the vertical direction.

[0066] Specifically, when assembling a product, it is assembled step by step from bottom to top. When there is a problem with the data related to this process, it can be analyzed step by step from the aspects of tooling, parts, etc., which makes it easier to accurately locate the problem so that the problem can be solved.

[0067] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An inner frame pin punching tool, characterized in that: It includes a tooling base (1), a positioning tooling (2) and a servo mechanism component (5); The side surfaces of the tooling base (1) are, in sequence, a tooling top surface (11), a tooling left vertical surface (12), a tooling lower inclined surface (13), a tooling bottom surface (14), a tooling right vertical surface (15), and a tooling upper inclined surface (16). The tooling top surface (11), the tooling left vertical surface (12), the tooling lower inclined surface (13), the tooling bottom surface (14), the tooling right vertical surface (15), and the tooling upper inclined surface (16) are sequentially arranged circumferentially from the counterclockwise direction. Two sets of adjustment pin holes (17) are provided in the front side and the rear side of the tooling base (1); The right vertical surface (15) of the tooling is integrally connected with a C-shaped stand (7); The upper inclined surface (16) of the tooling is fixedly connected to a positioning boss (3), and two sets of positioning pins (31) are fixedly connected at intervals on a side of the positioning boss (3) away from the upper inclined surface (16) of the tooling, and a chip cleaning hole (6) is provided in the positioning boss (3) and the tooling base (1); The positioning tool (2) includes a sleeve rod (21), an adjusting rod (22), a bracket (23), a support rod (24), a frame bracket (25) and two sets of fastening bolts (26), wherein the lower end of the sleeve rod (21) is connected to the inner side of the C-shaped stand (7), the adjusting rod (22) is connected to the inner side of the sleeve rod (21), the bracket (23) is fixedly sleeved on the outer side of the adjusting rod (22), the support rod (24) is fixedly connected to the top of the adjusting rod (22), and the two sets of fastening bolts (26) are connected to the inner side of the frame bracket (25) and the top of the support rod (24) through a threaded structure; The C-shaped stand (7) and the inner side of the lower end of the sleeve rod (21) are connected by a fixing pin (4); The servo mechanism component (5) includes an outer frame main shaft (51), an inner frame (52) and a pitch frame (53), wherein the outer frame main shaft (51) is fixedly connected to the inner frame (52), and the pitch frame (53) is rotatably connected to the inner side of the inner frame (52). The outer frame main shaft (51) is connected to the positioning boss (3), and both sides of the inner frame (52) are respectively connected to the inner walls of the bracket (23), and the pitch frame (53) is connected to the frame bracket (25).

2. The inner frame pin punching tool according to claim 1, characterized in that: The tooling top surface (11) is arranged parallel to the tooling bottom surface (14), the tooling left vertical surface (12) is arranged parallel to the tooling right vertical surface (15), and the tooling lower inclined surface (13) is arranged parallel to the tooling upper inclined surface (16).

3. The inner frame pin punching tool according to claim 1, characterized in that: A positioning mark (18) is provided on the surface edge of the right vertical surface (15) of the tooling.

4. The inner frame pin punching tool according to claim 1, characterized in that: The bottom of the tool bottom surface (14) is integrally connected to a padding layer (19), the padding layer (19) is a "U"-shaped structure, and the bottom opening of the chip cleaning hole (6) is arranged on the inner side of the padding layer (19).

5. The inner frame pin punching tool according to claim 1, characterized in that: The adjusting rod (22) is connected to the inner side of the sleeve rod (21) through a clearance fit.

6. The inner frame pin punching tool according to claim 1, characterized in that: The positioning boss (3) is adapted to be connected to the inner side of the bottom of the outer frame main shaft (51), and two sets of positioning pins (31) are inserted into the bottom of the outer frame main shaft (51).

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