A hobbing machine material dragging tool

Abstract

This utility model discloses a material handling fixture for a gear hobbing machine, including a chassis with locking screw holes for connection; a support rib connected to the chassis and extending vertically upward; a support plate connected to the support rib and extending horizontally, the support plate having a plurality of adjusting screw holes arranged in concentric circles around the support plate, each concentric circle having at least three adjusting screw holes; and at least three limiting studs screwed into the adjusting screw holes located in the same concentric circle. This structure solves the technical problems of low automation in existing gear clamping and poor versatility of traditional fixtures.

Description

Technical Field

[0001] This utility model relates to auxiliary equipment for gear processing, and in particular to a material dragging fixture for a gear hobbing machine. Background Technology

[0002] There are three main challenges in hobbing disc gears (hereinafter referred to as gears): 1. Existing hobbing machines can only perform manual loading and unloading, which is cumbersome and time-consuming. 2. Manual loading and unloading is more prone to causing parts to bump and knock, which can lead to scrapping of parts and significantly increase costs. 3. Conventional dedicated tooling that uses internal holes and end faces for positioning is costly and has poor versatility. Therefore, it is essential to design a material handling system that can adapt to the loading requirements of various types of disc gears and ensure the accuracy of the disc gear's position during loading. This system, combined with an automatic clamping mechanism, can reduce the labor intensity of workers and improve production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a material dragging fixture for a gear hobbing machine to solve a series of problems caused by the low degree of automation in the existing gear processing process and the need for manual clamping of gears.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A material handling fixture for a gear hobbing machine, including

[0006] The chassis has locking screw holes for connection.

[0007] Support ribs are connected to the chassis and extend vertically upwards;

[0008] A support plate is connected to a support rib and extends horizontally. The support plate is provided with a plurality of adjusting screw holes, which are arranged in concentric circles around the support plate. Each concentric circle has no less than three adjusting screw holes.

[0009] The limiting studs are at least three in number and are screwed into adjusting screw holes that are on the same concentric circle.

[0010] Preferably, the plurality of adjusting screw holes are arranged in two rows along the radial straight line of concentric circles and are arranged in a cross shape.

[0011] Preferably, the portion of the limiting stud extending above the support plate is fitted with a protective rubber sleeve.

[0012] Preferably, the support plate is U-shaped.

[0013] Preferably, auxiliary support plates are provided on both sides of the support plate, and the auxiliary support plates support the lower end surface of the gear after the gear is placed on the support plate.

[0014] Preferably, the chassis has three locking screw holes arranged in a triangular shape.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: After using the material handling fixture designed in this way, the material transportation of gears can be achieved by placing the gear on the support plate and then allowing the support screw on the support plate to enter the inner ring of the gear, thereby realizing rapid positioning of the gear and ensuring the accuracy of the gear position when the automatic clamping device picks it up. Through the setting of this solution, in conjunction with the automatic clamping device, the automated loading and unloading of gears is realized, effectively avoiding the gear collisions that are prone to occur during manual loading and unloading. In addition, this solution only requires placing the gear on the material handling fixture, and the automatic loading and unloading of the gear can be completed subsequently, greatly reducing the labor intensity of workers and improving the efficiency of gear processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial sectional view of the support plate;

[0018] Figure 3 This is a partial sectional view of the chassis.

[0019] Reference numerals in the attached diagram: 1. Chassis; 11. Locking screw hole; 2. Support rib; 3. Support plate; 31. Adjusting screw hole; 4. Protective rubber sleeve; 5. Auxiliary support plate; 6. Limiting stud. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1-3 The illustrated material handling fixture for a gear hobbing machine includes a chassis 1, which is a single sheet of metal. Several locking screw holes 11 are provided on the chassis. Bolts pass through these holes and are screwed onto the material channel (functioning similarly to a conveyor belt), allowing the chassis to move under the influence of the material channel. It should be noted that to ensure the stability of the connection between the chassis and the material channel, at least three locking screw holes are required, arranged in a triangular pattern.

[0024] like Figure 1 As shown, a vertically extending support rib 2 is connected to the chassis, and a support plate 3 is fixedly connected to the upper edge of the support rib 2. The support plate extends horizontally to ensure the stability of the gears placed on it.

[0025] Furthermore, it should be noted that, in order to ensure the accurate positioning of the gears placed on the support plate and to prevent collisions or bumps when the automatic clamping mechanism grips the gears, at least three limiting studs 4 are screwed onto the support plate. These at least three limiting studs are not arranged in a straight line, but rather according to the principle of determining a circle by three points to fit the inner diameter of the gear to be clamped.

[0026] However, this structure with three limiting studs 4 has limitations in terms of the size (inner diameter) of the gears it can accommodate. To broaden the scope of application, this solution incorporates several adjusting screw holes 31 on the support plate, arranged in groups of three in a concentric circle. When a limiting stud is screwed into a group of adjusting screw holes, a corresponding circle is defined. Specifically, during implementation, the diameter of the circle formed by the adjusting screw holes can be matched to the inner diameter of the gear to be machined.

[0027] It is important to know that the reason for setting up the support rib in the above structure is that the cylindrical section of the limiting stud is located on the support plate, while the hexagonal terminal is located at the bottom of the support plate. Subsequently, the limiting stud can be screwed on according to the thickness of the gear to adjust its extension height, ensuring that the limiting stud does not protrude too much from the upper end face of the gear, thus ensuring the convenience of placing and picking up the gear.

[0028] It should be noted that, as a further improvement to the above implementation method, in order to more easily identify which group each limiting screw hole belongs to and achieve rapid assembly during adjustment, the adjusting screw holes in this solution are arranged in two rows along concentric radial lines in a cross-shaped structure. Therefore, during adjustment, it is only necessary to determine which screw hole is in which group, and the other adjusting screw holes in the same group can also be quickly identified.

[0029] It should also be noted that the limiting stud 6 in this design is made of metal. To ensure accurate gear positioning, it is inevitable that it will collide with the inner ring of the gear, potentially causing internal damage. To reduce this, a protective rubber sleeve 4 is fitted onto the portion of the limiting stud extending above the support plate. This reduces impacts and collisions to the gear during placement. Furthermore, the protective rubber sleeve 4 is a removable and replaceable consumable. If significant wear occurs, leading to inaccurate positioning, the positioning accuracy can be restored by replacing the protective rubber sleeve 4.

[0030] Furthermore, it should be noted that the gears in this design are metal parts and quite heavy. When workers place them on the support plate, their fingers may be crushed. To minimize this risk, the support plate in this design has a U-shaped structure. When workers place the gears on the support plate, their fingers are inserted into the grooves of the support plate, preventing their hands from being crushed by the gears. It is important to understand that in the above mechanism, because the support plate is supported by the support ribs to the point of suspension, the safety of the gear placement is further ensured.

[0031] It should also be noted that, in order to further improve the stability of the gear placed on the support plate, auxiliary support plates 5 are also provided on both sides of the support plate. After the gear is placed on the support plate 3, the auxiliary support plate supports the lower end surface of the gear.

[0032] Working principle: This solution is fixed to the material channel with bolts. When gear machining is required, the operator places the gear on the support plate. At this time, the limiting stud is inserted into the inner ring of the gear, maintaining a certain gap (less than 1mm) to achieve the gear positioning effect. The gear then follows the material channel to the clamping mechanism and is clamped to achieve automatic loading and unloading of the gear. It should also be noted that when the gear model changes, the operator can adjust the position of the limiting stud on the support plate to adapt to the new gear's inner diameter.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material handling fixture for a gear hobbing machine, characterized in that: include The chassis (1) has a locking screw hole (11) for connection on its top; Support ribs (2) are connected to the chassis (1) and extend vertically upward; A support plate (3) is connected to the support rib plate (2) and extends horizontally. The support plate (3) is provided with a plurality of adjusting screw holes (31). The adjusting screw holes (31) are arranged in concentric circles around the support plate (3). The number of adjusting screw holes (31) on each concentric circle is not less than three. The limiting studs (6) are at least three in number and are screwed into the adjusting screw holes (31) on the same concentric circle.

2. The material handling fixture for a gear hobbing machine as described in claim 1, characterized in that: The aforementioned adjusting screw holes (31) are arranged in two rows along the radial straight line of concentric circles, and are arranged in a cross shape.

3. The material handling fixture for a gear hobbing machine as described in claim 1, characterized in that: The portion of the limiting stud extending above the support plate (3) is fitted with a protective rubber sleeve (4).

4. The material handling fixture for a gear hobbing machine as described in claim 1, characterized in that: The support plate (3) is U-shaped.

5. The material handling fixture for a gear hobbing machine as described in claim 1, characterized in that: Auxiliary support plates (5) are also provided on both sides of the support plate (3). After the gear is placed on the support plate (3), the auxiliary support plates (5) support the lower end surface of the gear.

6. The material handling fixture for a gear hobbing machine as described in claim 1, characterized in that: The chassis (1) has three locking screw holes (11) arranged in a triangular shape.

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