A tool for improving the overall stability of the riveting process of the blade of a wall breaking machine

Abstract

The utility model relates to the field of wall breaking machine spare and parts production equipment discloses a kind of tool for improving the overall stability of wall breaking machine blade riveting process, including blade riveting tool, motor assembly and heating disc and blade;The blade riveting tool includes disc surface positioning tool, shaft center positioning tool, bottom plate, screw, shaft center limit, disc surface limit surface one, disc surface limit surface two and blade riveting tool avoidance area;The motor assembly and heating disc include heating disc flange edge one, motor shaft, motor shaft flat position and heating disc flange edge two.In the utility model, the 2mm avoidance design of blade riveting tool avoidance area, completely solve the bruise, scratch problem of heating disc flange edge one, flange edge two and disc surface;Meanwhile, by limiting heating disc swing amount, avoid the blade edge deflection, riveting point deformation and other functional defects caused by blade riveting imbalance, finally product yield rate is improved from 70% to 98%, greatly reduce scrap rate and rework cost.

Description

Technical Field

[0001] This utility model relates to the field of blender parts production equipment, and in particular to a tooling for improving the overall stability of the blender blade riveting process. Background Technology

[0002] In the manufacturing process of a high-speed blender, the riveting of the heating plate and the blades is a key process to ensure the performance of the equipment. This process requires the use of special tooling to position and fix the heating plate and motor assembly to ensure the riveting accuracy of the blades on the motor shaft, thereby ensuring the stability and safety of the blender during operation.

[0003] Currently, the majority of tooling used in the industry for riveting heating plate blades is axial positioning tooling. The core design idea of ​​this type of tooling is to fix the heating plate axially through a limiting structure that is compatible with the motor shaft. That is, the axial limiting component of the tooling fits onto the motor shaft to achieve the positioning of the heating plate in the axial direction and prevent the heating plate from moving axially along the motor shaft during the riveting process.

[0004] However, existing axial positioning fixtures have obvious structural limitations: they can only achieve single-point positioning of the heating plate's axis, without setting any auxiliary limiting or support structures for the heating plate's surface and edge areas. Since the heating plate itself has a certain radial dimension, and is subjected to continuous impact force and torque during blade riveting (especially vibratory riveting), this "single-point fixed, unconstrained around" positioning method makes the heating plate very prone to overall shaking during the riveting process. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tooling that improves the overall stability of the blade riveting process of a blender, aiming to improve the problem that the existing axial positioning tooling can only fix the heating plate and lacks limiting around the perimeter, causing the heating plate to shake easily.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tooling for improving the overall stability of the blade riveting process in a blender, comprising a blade riveting tooling, a motor assembly and a heating plate, and blades; the blade riveting tooling includes a plate positioning tooling, a shaft positioning tooling, a base plate, screws, a shaft limiting device, a plate limiting surface one, a plate limiting surface two, and a clearance area for the blade riveting tooling; the motor assembly and heating plate include a heating plate flange edge one, a motor shaft, a motor shaft flat section, and a heating plate flange edge two; the blades include an upper blade and a lower blade; The shaft positioning fixture is mounted on the base plate with screws. The disc positioning fixture is set on the base plate and located outside the shaft positioning fixture. The shaft limiter is set on the shaft positioning fixture. Disc limiter surface one and disc limiter surface two are set on the disc positioning fixture. The clearance area of ​​the blade riveting fixture is a specific area on the disc positioning fixture. The motor assembly and the motor shaft in the heating plate are fitted within the shaft limiter. Heating plate flange edge one and heating plate flange edge two correspond to disc limiter surface one and disc limiter surface two, respectively. The upper blade and the lower blade are placed at the flat position of the motor shaft.

[0007] Furthermore, the shaft positioning fixture can be replaced by removing the screws to adapt to motor shafts of different lengths.

[0008] Furthermore, the lateral distance between the two ends of the shaft center limiter is 0.5 to 1 mm greater than the width of the motor shaft, and the longitudinal distance between the shaft center limiters is 2 mm smaller than the length of the motor shaft.

[0009] Furthermore, the distance between the first and second limiting surfaces of the plate is greater than the 0.4mm gap between the first and second flange edges of the heating plate.

[0010] Furthermore, the distance between the starting point and the ending point of the first or second plate limiting surface on the plate positioning fixture is greater than the width of the heating plate flange by 2mm, forming a clearance area for the blade riveting fixture.

[0011] Furthermore, the upper part of the disc positioning fixture is provided with a semi-circular chamfer.

[0012] Furthermore, the tooling is made of CR12 material.

[0013] Furthermore, the distance between the bottom end point of the shaft center limit and the starting point of the semi-circular chamfer on the plate positioning fixture is the same as the distance from the end point of the motor shaft to the outer side of the flange edge of the heating plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the 2mm clearance design of the blade riveting fixture completely solves the problems of pressure and scratches on the flange edge 1, flange edge 2 and the plate surface of the heating plate; at the same time, by limiting the swing of the heating plate, functional defects such as blade skew and riveting point deformation caused by unbalanced blade riveting are avoided, and the final product yield rate is increased from 70% to 98%, which greatly reduces the scrap rate and rework cost.

[0016] 2. In this utility model, through the dual constraint structure of shaft center limiting and disc surface auxiliary positioning, the dynamic balance of the blade after riveting is reduced from 2mm in the original technology to less than 0.5mm, which greatly reduces the mechanical vibration during the operation of the blender. This improvement directly improves the concentricity of the blade rotation, reduces local wear caused by the center of gravity shift, and extends the service life of the blade and motor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a tooling for improving the overall stability of the blade riveting process in a blender, as proposed in this utility model.

[0018] Figure 2 A schematic diagram of the blade riveting fixture structure for improving the overall stability of the blade riveting process of a blender proposed in this utility model;

[0019] Figure 3 A schematic diagram of the motor assembly and heating plate structure of a tooling for improving the overall stability of the blade riveting process in a blender, as proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the blade structure of a tooling for improving the overall stability of the blade riveting process in a blender, as proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the clearance area structure of a tooling for improving the overall stability of the blade riveting process in a blender, as proposed in this utility model.

[0022] Legend:

[0023] 1. Blade riveting fixture; 101. Disc positioning fixture; 102. Shaft positioning fixture; 103. Base plate; 104. Screw; 105. Shaft limiter; 106. Disc limiter surface one; 107. Disc limiter surface two; 108. Clearance area of ​​blade riveting fixture; 2. Motor assembly and heating plate; 201. Heating plate flange edge one; 202. Motor shaft; 203. Motor shaft flat position; 204. Heating plate flange edge two; 3. Blade; 301. Upper blade; 302. Lower blade. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1-5 This utility model provides an embodiment of a tooling for improving the overall stability of the blade riveting process in a blender, comprising a blade riveting tooling 1, a motor assembly and a heating plate 2, and blades 3; the blade riveting tooling 1 includes a plate positioning tooling 101, a shaft positioning tooling 102, a base plate 103, screws 104, a shaft limiting 105, a plate limiting surface one 106, a plate limiting surface two 107, and a blade riveting tool clearance area 108; the motor assembly and heating plate 2 include a heating plate flange edge one 201, a motor shaft 202, a motor shaft flat position 203, and a heating plate flange edge two 204; the blades 3 include an upper blade 301 and a lower blade 302; the shaft positioning tooling 102 is secured by screws 104. Mounted on the base plate 103, the disc positioning fixture 101 is set on the base plate 103 and located outside the shaft positioning fixture 102. The shaft limit 105 is set on the shaft positioning fixture 102. The disc limit surface one 106 and the disc limit surface two 107 are set on the disc positioning fixture 101. The blade riveting fixture clearance area 108 is a specific area on the disc positioning fixture 101. The motor assembly and the motor shaft 202 in the heating plate 2 are fitted within the shaft limit 105. The heating plate flange edge one 201 and the heating plate flange edge two 204 correspond to the disc limit surface one 106 and the disc limit surface two 107, respectively. The upper blade 301 and the lower blade 302 are placed at the motor shaft flat position 203.

[0026] Specifically, in the construction of the blade riveting fixture 1, the shaft positioning fixture 102 plays a crucial role. It is stably installed on the base plate 103 by the fastening action of the screws 104. The top of the shaft positioning fixture 102 is designed with a shaft limiter 105. This design cooperates with the motor shaft 202 of the motor assembly and heating plate 2. The horizontal distance between the two ends of the shaft limiter 105 is designed so that its width is 0.5 to 1 mm greater than the width of the motor shaft 202. This design ensures that the motor shaft 202 can be smoothly inserted and avoids any possible jamming. At the same time, the longitudinal distance of the shaft limiter 105 is also precisely calculated so that its length is 2 mm less than the length of the motor shaft 202. This design ensures that only the motor shaft 202 bears the force during the riveting process, thereby avoiding any additional load on the motor body.

[0027] On the outside of the shaft positioning fixture 102, we set up a disc positioning fixture 101. The disc limiting surface 106 and the disc limiting surface 107 on the disc positioning fixture 101 correspond to the heating plate flange edge 201 and the heating plate flange edge 204, respectively. The distance between these two limiting surfaces is 0.4mm greater than the distance between the heating plate flange edge 201 and the heating plate flange edge 204. This design not only reserves sufficient installation space, but also effectively limits the lateral sway of the heating plate. The disc positioning fixture 101 is made of CR12 material and has a semi-circular chamfer on its upper part. This design is intended to prevent possible hand cuts during operation. In addition, the distance between the bottom end of the shaft limiting 105 and the starting point of the semi-circular chamfer on the disc positioning fixture 101 is consistent with the distance from the end of the motor shaft 202 to the outside of the heating plate flange edge 201. This design ensures the positioning accuracy.

[0028] On the disc positioning fixture 101, the distance between the starting point and the ending point of the disc limiting surface one 106 or the disc limiting surface two 107 is 2mm greater than the width of the heating plate flange, thus forming a blade riveting fixture clearance area 108. This design cleverly avoids possible damage to the disc surface during the riveting process. In addition, the design of the shaft positioning fixture 102 allows for replacement by removing the screws 104 to adapt to motor shafts 202 of different lengths. The upper blade 301 and the lower blade 302 are placed at the flat position 203 of the motor shaft to complete the riveting process. Through the above structural design, the overall stability of the blade riveting process is effectively improved, ensuring the quality and efficiency of the riveting.

[0029] Working principle: In the blade riveting fixture 1, the shaft positioning fixture 102 is fixed to the base plate 103 by screws 104. The shaft limit 105 at its top cooperates with the motor assembly and the motor shaft 202 of the heating plate 2. The design of the lateral distance between the two ends of the shaft limit 105 is 0.5-1mm greater than the width of the motor shaft 202, ensuring smooth insertion of the motor shaft 202 without jamming. Simultaneously, the longitudinal distance of the shaft limit 105 is 2mm smaller than the length of the motor shaft 202, so that only the motor shaft 202 bears force during riveting, avoiding additional load on the motor body. The disc positioning fixture 101 is located outside the shaft positioning fixture 102. Its disc limit surface one 106 and disc limit surface two 107 correspond to the heating plate flange edge one 201 and heating plate flange edge two 204, respectively. The distance between the two limit surfaces is 0.4mm greater than the distance between the heating plate flange edge one 201 and heating plate flange edge two 204, thus reserving space for installation. To limit the lateral movement of the heating plate, the plate positioning fixture 101 is made of CR12 material. The upper part is provided with a semi-circular chamfer to prevent hands from being cut during operation. The distance between the bottom end of the shaft center limit 105 and the starting point of the semi-circular chamfer on the plate positioning fixture 101 is the same as the distance between the end of the motor shaft 202 and the outer side of the heating plate flange 1 201, ensuring positioning accuracy. At the same time, the distance between the starting point and the ending point of the plate surface limit surface 1 106 or the plate surface limit surface 2 107 on the plate positioning fixture 101 is 2mm greater than the width of the heating plate flange, forming a clearance area 108 for the blade riveting fixture, which avoids damaging the plate surface during riveting. In addition, the shaft center positioning fixture 102 can be replaced by removing the screws 104 to adapt to motor shafts 202 of different lengths. The upper blade 301 and the lower blade 302 are placed at the flat part 203 of the motor shaft to complete the riveting. Through the above structural design, the overall stability of the blade riveting process is effectively improved.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tooling for improving the overall stability of the blade riveting process in a blender, characterized in that: The assembly includes a blade riveting fixture (1), a motor assembly and a heating plate (2), and a blade (3). The blade riveting fixture (1) includes a disc positioning fixture (101), a shaft positioning fixture (102), a base plate (103), screws (104), a shaft limiter (105), a disc limiting surface one (106), a disc limiting surface two (107), and a blade riveting fixture clearance area (108). The motor assembly and heating plate (2) include a heating plate flange edge one (201), a motor shaft (202), a motor shaft flat position (203), and a heating plate flange edge two (204). The blade (3) includes an upper blade (301) and a lower blade (302). The shaft positioning fixture (102) is mounted on the base plate (103) by screws (104). The positioning fixture (101) is set on the base plate (103) and located outside the shaft positioning fixture (102). The shaft limiter (105) is set on the shaft positioning fixture (102). The first plate limiter (106) and the second plate limiter (107) are set on the plate positioning fixture (101). The clearance area (108) of the blade riveting fixture is a specific area on the plate positioning fixture (101). The motor assembly and the motor shaft (202) in the heating plate (2) are fitted within the shaft limiter (105). The first heating plate flange (201) and the second heating plate flange (204) correspond to the first plate limiter (106) and the second plate limiter (107) respectively. The upper blade (301) and the lower blade (302) are placed at the flat position (203) of the motor shaft.

2. The tooling for improving the overall stability of the blade riveting process in a blender according to claim 1, characterized in that: The shaft positioning fixture (102) can be replaced by removing the screws (104) to adapt to motor shafts (202) of different lengths.

3. The tooling for improving the overall stability of the blade riveting process in a blender according to claim 1, characterized in that: The horizontal distance between the two ends of the shaft center limiter (105) is 0.5 to 1 mm greater than the width of the motor shaft (202), and the vertical distance between the shaft center limiters (105) is 2 mm smaller than the length of the motor shaft (202).

4. The tooling for improving the overall stability of the blade riveting process in a blender according to claim 1, characterized in that: The distance between the first plate limiting surface (106) and the second plate limiting surface (107) is greater than the distance between the first heating plate flange edge (201) and the second heating plate flange edge (204) by 0.4 mm.

5. The tooling for improving the overall stability of the blade riveting process in a blender according to claim 1, characterized in that: The distance between the starting point and the ending point of the first plate limiting surface (106) or the second plate limiting surface (107) on the plate positioning fixture (101) is greater than the width of the heating plate flange by 2mm, forming a clearance area (108) for the blade riveting fixture.

6. The tooling for improving the overall stability of the blade riveting process in a blender according to claim 1, characterized in that: The upper part of the disc positioning fixture (101) is provided with a semi-circular chamfer.

7. The tooling for improving the overall stability of the blade riveting process in a blender according to claim 1, characterized in that: The tooling is made of CR12 material.

8. The tooling for improving the overall stability of the blade riveting process in a blender according to claim 1, characterized in that: The distance between the bottom end of the shaft center limit (105) and the starting point of the upper semi-circular chamfer of the plate positioning fixture (101) is the same as the distance between the end of the motor shaft (202) and the outer side of the heating plate flange (201).

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