Gear casting polishing device

Abstract

The utility model discloses a kind of gear casting and polishing device, including drive frame, positioning machine base and polishing roller group, positioning machine base is slidably installed in drive frame, surface is provided with slide and is used for gear angle adjustment rudder machine, motor is equipped in drive frame, motor is rotated by transmission shaft and output shaft and drives polishing roller group, polishing roller group is made of shaft sleeve and multiple polishing tooth head, polishing tooth head surface is equipped with end grinding surface, side is equipped with tooth grinding surface.End grinding surface is used for polishing gear end clearance area, tooth grinding surface is used for the meshing surface or side wall of gear tooth key, polishing tooth head is arranged along shaft sleeve in multiple groups of ring, with one machine multi-surface processing capacity.The device compact structure, strong adaptability, can efficiently complete gear multi-surface polishing process, improve gear precision and surface quality.

Description

Technical Field

[0001] This utility model relates to the field of gear grinding technology, specifically a grinding device for gear casting. Background Technology

[0002] As a key component in mechanical transmission systems, the manufacturing quality of gears directly affects the accuracy and lifespan of the entire machine. In traditional manufacturing processes, casting is one of the common methods for preparing gear blanks. However, due to unavoidable problems such as burrs, flash, gate residue, and uneven thermal stress during the casting process, cast gears often have defects such as end burrs, inter-tooth burrs, and tooth flank attachments. If these defects are not addressed, they will seriously affect the meshing accuracy and service life of the gears.

[0003] Currently, post-cast gear finishing generally employs manual grinding or fixed single-sided grinding equipment. Manual grinding is labor-intensive, inconsistent, and inefficient. Fixed grinding equipment, on the other hand, often uses single-angle grinding wheels or belt grinding heads for point-to-point processing. While it can replace manual grinding to some extent, it is limited by the workpiece positioning method and grinding head trajectory, and can usually only achieve single-sided finishing or side grinding. It is difficult to simultaneously cover the gear end face and key area, resulting in problems such as process separation, low alignment accuracy, and large secondary clamping errors.

[0004] In addition, the grinding head structure in traditional equipment is mostly a flat or end face grinding wheel, which cannot be flexibly adapted to changes in gear geometry. It cannot meet the comprehensive requirements of high-precision gears for boundary contour consistency and multi-area surface roughness, especially in terms of cleaning efficiency and effect in detailed areas such as end gap area and tooth groove sidewall.

[0005] Therefore, there is an urgent need for an integrated grinding device that is compact, multifunctional, and can cover multiple processing areas of the gear end face and key, especially with a targeted design in the grinding unit, which can achieve an integrated, automated, and highly consistent composite grinding effect, thereby improving the overall processing quality and surface performance of gear castings. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: a grinding device for gear casting, including a drive frame, a positioning base, a slide, a servo motor, a motor, a grinding roller group and its matching transmission structure, which realizes efficient composite grinding of the gear end face and the key surface through multiple sets of grinding heads.

[0008] In a preferred embodiment, the gear casting grinding device is further configured as follows: the gear casting grinding device includes a drive frame, a positioning base, and a grinding roller assembly. The positioning base is slidably mounted on the surface of the drive frame. The positioning base is provided with a slidable slide and a servo motor for adjusting the drive angle. The drive frame contains a motor, which drives the grinding roller assembly to rotate through a transmission shaft and an output shaft. The grinding roller assembly includes a bushing and several grinding teeth. The surface of the grinding teeth is provided with an end grinding surface, and both sides are provided with tooth grinding surfaces.

[0009] Specifically: By using positioning, clamping, angle adjustment, rotary drive, and multi-faceted grinding head collaboration, concentrated grinding of multiple surfaces of the gear can be achieved, improving overall work efficiency and one-time processing coverage.

[0010] Based on the above structure, the slide is slidably mounted on the surface of the positioning base, with the sliding direction perpendicular to the surface of the drive frame. Motor slide bars are provided on both sides of the slide to provide electrode connection and support track for the servo motor.

[0011] Specifically: It enables rapid vertical adjustment of the grinding area to adapt to the grinding requirements of gears of different sizes and ensures precise alignment of the machined surface.

[0012] In a preferred embodiment, the servo motor is further configured such that its output end is connected to a clamping chuck, which is used to axially clamp and position the gear's inner hole, thereby achieving clamping and rotation adjustment functions.

[0013] Specifically: It provides rotational freedom while clamping, ensuring that the gear has controllable angle adjustment capability in the working state, so as to cooperate with different grinding head directions for linked grinding.

[0014] In a preferred embodiment, the motor is further configured such that it meshes with the output shaft via a drive shaft to drive the grinding roller assembly to rotate, and the rotation direction of the grinding roller assembly is perpendicular to the sliding direction of the slide block.

[0015] Specifically: A three-dimensional machining path is formed, with the workpiece movement direction intersecting the grinding rotation direction, which is beneficial for forming a complete grinding trajectory at the end and the transition zone between the teeth and keys.

[0016] In a preferred example, the grinding teeth are further configured such that the number of grinding teeth is several, and they are divided into multiple groups along the outer circumference of the bushing. Each group of grinding teeth is arranged in a uniform circle, and each group is arranged in a straight line along the axial direction of the bushing.

[0017] Specifically: It constitutes a three-dimensional distributed grinding system that can cover multiple grinding surfaces in the circumferential and axial directions of the gear, and is suitable for the repair treatment of complex geometric gear surfaces.

[0018] In a preferred example, the height and width of the grinding head are configured as a tapered structure along its rotation direction.

[0019] Specifically: Enhance the grinding head's ability to fit curved surfaces or detailed areas at the root of teeth, reduce machining dead angles, and improve grinding envelope performance and contact efficiency.

[0020] The end grinding surface is located on the outer circumferential surface of the grinding head and is used to grind the gap area at the end of the gear; the tooth grinding surface is located on both sides of the grinding head and is used to grind the meshing surface or sidewall of the gear teeth, and both grinding surfaces are designed with a rough surface structure.

[0021] Specifically: The same grinding head has two types of functional grinding surfaces, which can simultaneously process different grinding areas of the gear, improving the integration and consistency of the machining process.

[0022] In a preferred embodiment, the end grinding surface is further configured as follows: the end grinding surface is used for grinding the gear end, and the tooth grinding surface is used for cleaning and polishing the tooth key side or meshing surface.

[0023] Specifically: Oriented treatment is carried out on common defects in gear casting to ensure the meshing quality of the gear teeth and the absence of burrs on the outer edge of the gear, thereby improving the product qualification rate and assembly accuracy.

[0024] In summary, this utility model achieves composite grinding of multiple parts such as gear end faces and key sides through a structurally optimized drive and grinding linkage design. The device has a compact structure, flexible adjustment, and good grinding consistency. It is especially suitable for batch grinding processes of small and medium-sized cast gears. It has significant advantages and promotional value in improving production efficiency, reducing labor intensity, and improving processing quality.

[0025] The beneficial effects achieved by this utility model are as follows:

[0026] 1. In this utility model, the high-speed rotation drive of the grinding head is realized through the transmission linkage structure between the drive frame, transmission shaft, output shaft and grinding roller group, making the operation of the entire device more stable and reliable during the grinding process. It is suitable for the efficient processing of cast gears and improves the processing efficiency and grinding consistency of the equipment.

[0027] 2. In this utility model, the grinding roller group adopts a structure in which multiple grinding teeth are arranged circumferentially around the bushing, and the grinding teeth are provided with two functional areas: end grinding surface and tooth grinding surface. The end grinding surface is used to grind the gap area at the end of the gear, and the tooth grinding surface is used to trim and clean the meshing surface or sidewall of the gear teeth. This realizes multi-face processing on one machine, improves the comprehensiveness and detail accuracy of the grinding effect, and meets the comprehensive requirements of gear finishing process for positioning accuracy and surface finish. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the transmission structure of the motor and grinding roller assembly according to one embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the surface structure of the positioning base according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the surface and partial structure of a grinding roller assembly according to an embodiment of the present invention.

[0032] Figure label:

[0033] 100. Drive frame; 110. Motor; 120. Drive shaft; 130. Output shaft;

[0034] 200. Positioning base; 210. Slide; 220. Servo motor; 211. Motor slide bar;

[0035] 300. Grinding roller assembly; 310. Bushing; 320. Grinding tooth head; 321. End grinding surface; 322. Grinding tooth surface. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0037] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0038] The following describes, with reference to the accompanying drawings, some embodiments of a gear casting grinding device provided by this utility model.

[0039] Combination Figures 1-4 As shown, the present invention provides a grinding device for gear casting, including a drive frame 100, a positioning base 200, and a grinding roller group 300.

[0040] The positioning base 200 is slidably mounted on the surface of the drive frame 100 for easy position adjustment. A slide block 210 and a servo motor 220 are slidably mounted on the surface of the positioning base 200. The slide block 210 is used to adjust the grinding height, and the servo motor 220 is used to drive the gear workpiece for fine-tuning the angle to achieve multi-angle meshing positioning. A clamping chuck is connected to the output end of the servo motor 220 to clamp and position the gear's inner hole, ensuring the gear remains stable and does not shift during grinding.

[0041] A motor 110 is fixedly mounted inside the drive frame 100 to provide driving power. The output end of the motor 110 is meshed with an output shaft 130 via a transmission shaft 120. Both the transmission shaft 120 and the output shaft 130 are rotatably mounted. The output shaft 130 is used to drive the grinding roller assembly 300 to rotate, realizing contact processing between the gear workpiece and the grinding surface.

[0042] The grinding roller assembly 300 includes a bushing 310 and a plurality of grinding teeth 320, which are evenly arranged on the outer peripheral surface of the bushing 310. Each grinding tooth 320 is provided with an end grinding surface 321 and a tooth grinding surface 322. The end grinding surface 321 is provided on the outer peripheral surface of the grinding tooth 320 and is used to grind the gap area at the end of the gear. The tooth grinding surface 322 is provided on the left and right sides of the grinding tooth 320 and is used to trim and clean the meshing surface or sidewall of the gear teeth.

[0043] In a preferred embodiment, the slide block 210 is slidably mounted on the surface of the positioning base 200, and the sliding direction is perpendicular to the surface of the drive frame 100, thereby allowing for vertical positioning adjustment to accommodate gears of different sizes at different positioning heights. Motor slide bars 211 are provided on both sides of the slide block 210 for limiting and guiding the servo motor 220 and for electrode connection.

[0044] The number of grinding teeth 320 is several, and they are evenly divided into multiple groups along the circumferential direction of the bushing 310. Each group of grinding teeth 320 is evenly distributed in a circle, and the groups are arranged in a straight line along the axial direction of the bushing 310, thus forming a grid-like grinding array, which is suitable for covering grinding contacts of different parts.

[0045] In a preferred embodiment, the height and width of the grinding head 320 are gradually reduced along its rotation direction to enhance contact flexibility and envelopment, adapt to different meshing angles or curved surface positions, and improve grinding adaptability.

[0046] To improve the actual processing effect, both the end grinding surface 321 and the gear grinding surface 322 are designed with a rough surface structure. The surface roughness can be adjusted to a specific grit level according to the gear material to form a good grinding and deburring ability.

[0047] When using this device, the operator first places the gear workpiece on the expansion clamp controlled by the servo motor 220 to achieve internal expansion clamping. The angle is adjusted by the servo motor 220 to align the part to be ground with the rotation trajectory of the grinding roller assembly 300. After the motor 110 drives the grinding roller assembly 300 to rotate, the grinding head 320, under the action of the end grinding surface 321 and the tooth grinding surface 322, simultaneously grinds the end face gap and both sides of the key of the gear, realizing multi-face processing on one machine. The slide 210 can achieve fine height adjustment to meet the processing requirements of gears of different diameters, and together with the servo motor control, it can achieve high consistency gear finishing at multiple angles.

[0048] In summary, this specific embodiment constructs a compact, multifunctional, and highly adaptable grinding device for gear casting, featuring high positioning accuracy, multi-faceted synchronous grinding, and wide applicability, suitable for post-cast finishing and precision machining scenarios of various types of gears.

[0049] Working principle and usage process of this utility model:

[0050] During operation, the operator first positions the gear workpiece to be processed using the expansion chuck controlled by the servo motor 220. The servo motor 220 allows for fine-tuning of the gear angle to match the grinding position. The servo motor 220 forms a stable connection with the motor slide bar 211 and can be adjusted up and down along the slide block 210 to accommodate the positioning height of gears of different specifications. The slide block 210 is vertically slidable on the positioning base 200, facilitating fine-tuning and adaptation of the processing height.

[0051] The grinding roller assembly 300 is driven to rotate by a motor 110. The output end of the motor 110 is connected to the output shaft 130 via a transmission shaft 120, thereby driving the output shaft 130 to rotate and driving the grinding roller assembly 300 to rotate as a whole. The grinding roller assembly 300 includes a bushing 310 and a plurality of grinding teeth 320, which are equidistantly arranged on the outer peripheral surface of the bushing 310.

[0052] When the gear comes into contact with the grinding head 320, the end grinding surface 321 on the outside of the grinding head 320 can act on the gap area at the end of the gear, while the tooth grinding surface 322 is set on both sides of the tooth head and is used specifically for grinding and shaping the sides of the gear teeth. Since the grinding head 320 is arranged with an axially tapered structure, adaptive envelope contact can be achieved during the grinding process, improving the consistency and efficiency of surface processing.

[0053] When the entire device is in operation, the rotation direction of the gear is adjusted by the servo motor, and the slide can realize the vertical grinding displacement adjustment; the motor continuously drives the grinding roller group to rotate, thereby completing the multi-angle grinding of the key surface and end in the gear internal expansion positioning state.

[0054] In summary, this device, through the coordinated control of structural modules, achieves stable positioning and multi-dimensional adjustment of gears, and through the optimization of the gear head structure, it enables efficient grinding of different parts. It is suitable for post-cast grinding processes of gears of various specifications and has significant advantages such as compact structure, stable transmission, and high grinding precision.

[0055] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A grinding device for gear casting, characterized in that, include: The drive frame (100), positioning base (200), and grinding roller assembly (300) are provided. The positioning base (200) is slidably mounted on the surface of the drive frame (100), and a slide block (210) and a servo motor (220) are slidably mounted on the surface of the positioning base (200). The servo motor (220) is used to drive the gear to deflect for angle adjustment. A motor (110) is fixedly mounted on the inner side of the drive frame (100), and a transmission device that meshes with the output end of the motor (110) is rotatably mounted on the inner side of the drive frame (100). The drive shaft (120) is rotatably mounted on the inner side of the drive frame (100) and the output shaft (130) is connected to the end of the grinding roller group (300). The output shaft (130) meshes with the surface of the drive shaft (120) for transmission. The grinding roller group (300) includes a bushing (310) and a plurality of grinding teeth (320) arranged on the surface of the bushing (310). The surface of the grinding teeth (320) is provided with an end grinding surface (321), and the two sides of the grinding teeth (320) are provided with tooth grinding surfaces (322).

2. The grinding device for gear casting according to claim 1, characterized in that, The slide block (210) is slidably mounted on the surface of the positioning base (200), and the sliding direction is perpendicular to the surface of the drive frame (100). The slide block (210) has motor slide bars (211) on both sides for connecting the electrodes of the servo motor (220).

3. The grinding device for gear casting according to claim 1, characterized in that, The output end of the servo motor (220) is connected to a clamping chuck, which is used to achieve internal clamping and positioning of the servo motor (220) and the gear.

4. The grinding device for gear casting according to claim 1, characterized in that, The motor (110) drives the output shaft (130) to rotate through the transmission shaft (120) and the output shaft (130), and the axial rotation direction of the grinding roller group (300) is opposite to the sliding direction of the slide (210).

5. The grinding device for gear casting according to claim 1, characterized in that, The number of grinding teeth (320) is several, and they are divided into multiple groups. Each group of grinding teeth (320) is evenly arranged in a circumferential direction on the surface of the bushing (310). Each group of grinding teeth (320) is arranged in a straight line along the axial direction of the bushing (310).

6. The grinding device for gear casting according to claim 1, characterized in that, The height and width of the grinding head (320) are gradually reduced along its axial rotational direction.

7. The grinding device for gear casting according to claim 1, characterized in that, The end grinding surface (321) is disposed on the outer peripheral surface of the grinding head (320), and the tooth grinding surface (322) is disposed on both sides of the grinding head (320), and the surfaces of the end grinding surface (321) and the tooth grinding surface (322) are both rough.

8. The grinding device for gear casting according to claim 7, characterized in that, The end grinding surface (321) is used to grind the gap area at the end of the gear, and the tooth grinding surface (322) is used to grind and trim the side or meshing surface of the gear teeth.

Images