A four-axis adjustment device for spline machining

Abstract

This utility model relates to a four-axis adjustment device for spline machining. The device comprises a set of corresponding four-axis rotary tables and tailstocks. A flange is mounted on the rotary table, and a flange seat with clearance fitting is located within the flange. A clamping assembly is mounted on the flange seat, and a positioning assembly cooperating with the clamping assembly is mounted on the tailstock. A locking element is located on one side of the flange, and an adjusting element is located on the other side. A locking hole cooperating with the locking element is located on one side of the flange seat, and an adjusting groove cooperating with the adjusting element is located on the other side. In use, the machined product can be easily adjusted and locked using the locking screws and adjusting screws, improving machining accuracy, avoiding quality problems caused by multi-process clamping and tolerance factors, and enhancing product consistency.

Description

Technical Field

[0001] This utility model relates to the technical field of machining, specifically a four-axis adjustment device for spline machining. Background Technology

[0002] Currently, in the machinery manufacturing industry, products involving multi-process machining cannot complete the machining of multiple processes on a single adjustment device. They require multiple clamping operations to process different parts, which results in a certain degree of precision difference. This, coupled with the influence of tolerance factors, ultimately leads to the product's inconsistency failing to meet the positioning requirements of subsequent processes.

[0003] Meanwhile, in existing technologies, for some transmission components, such as splined shafts produced in large quantities, there are very mature specialized machining equipment and tools. However, in the early prototype testing stage, when the product is not yet finalized and may involve subsequent design changes, adopting mass production processes would require specialized equipment and tools, resulting in excessively high investment and debugging costs. Furthermore, because the outer diameter and tooth profile of the splined shaft are processed in different processes and on different equipment, and the splined shaft and tooth profile have very high coaxiality requirements, conventional machining methods cannot meet these requirements.

[0004] Therefore, there is an urgent need for an adjustment device that can ensure the consistency of processed products, while also being widely applicable and convenient for customized product processing and testing. Summary of the Invention

[0005] The purpose of this invention is to provide an improved four-axis adjustment device for spline machining. Through structural improvements, the machining accuracy is enhanced, thereby improving product consistency.

[0006] To achieve the above objectives, the technical solution of this utility model is: a four-axis adjustment device for spline machining, characterized in that: the four-axis adjustment device includes a set of correspondingly arranged four-axis turntables and tailstocks, a flange is provided on the four-axis turntable, a flange seat with clearance fit is provided inside the flange, a clamping assembly is provided on the flange seat, and a positioning assembly with the clamping assembly is provided on the tailstock; a locking element is provided on one side of the flange, and an adjusting element is provided on the other side; a locking hole with the locking element is provided on one side of the flange seat, and an adjusting groove with the adjusting element is provided on the other side.

[0007] Preferably, the clamping assembly includes a collet and a cap. The cap has an internal thread on its inner side, and one end of the flange seat has an external thread that mates with the internal thread. The collet and the flange seat are fixedly connected by the cap.

[0008] Furthermore, the locking component is a locking screw with a pointed, conical end; the adjusting component is an adjusting screw with an arc-shaped end, the diameter of which is larger than the diameter of the adjusting screw body.

[0009] Furthermore, the collet end face is provided with a clamping hole for clamping the workpiece being processed.

[0010] Furthermore, the positioning component includes a movable block, one end of which is provided with a tip, and the end of the tip is provided with a working surface.

[0011] Furthermore, a positioning rod is provided between the flange seat and the flange plate; the four-axis rotary table and the tailstock are mounted on a base, and the two ends of the base are respectively provided with raised mounting platforms for mounting the four-axis rotary table and the tailstock.

[0012] Compared with the prior art, the technical solution of this utility model not only improves the overall technical solution, but also includes many detailed improvements. Specifically, it has the following beneficial effects:

[0013] The improved solution of this utility model includes a four-axis adjustment device comprising a set of corresponding four-axis turntables and tailstocks. A flange is provided on the four-axis turntable, and a flange seat with clearance fit is provided inside the flange. A clamping component is provided on the flange seat, and a positioning component that cooperates with the clamping component is provided on the tailstock. This greatly improves the adjustment accuracy, solves the product consistency problem, and improves production efficiency and product quality.

[0014] In the technical solution of this utility model, a locking component is provided on one side of the flange and an adjusting component is provided on the other side; a locking hole that cooperates with the locking component is provided on one side of the flange seat and an adjusting groove that cooperates with the adjusting component is provided on the other side, so that when the adjusting component rotates, it drives the flange to make precise displacement, thereby improving processing accuracy and work efficiency and reducing production costs.

[0015] In the structure of this utility model, the clamping component includes a collet and a screw cap. The inner side of the screw cap is provided with an internal thread, and one end of the flange seat is provided with an external thread that mates with the internal thread. The collet and the flange seat are fixedly connected by the screw cap, which has a good clamping effect, facilitates calibration and centering, and improves work efficiency.

[0016] The method of using this utility model is simple and easy to operate. The operation process is highly versatile and convenient for customized testing and processing. At the same time, it improves production efficiency, saves time and effort, and is easy to promote and utilize. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a partial schematic diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of another embodiment of the present utility model.

[0020] Figure label:

[0021] 1. Four-axis rotary table, 2. Tailstock, 3. Workpiece, 4. Flange, 5. Flange seat, 6. Clamping assembly, 7. Locking device, 8. Adjusting device, 9. Moving block, 10. Center, 11. Positioning rod, 12. Base, 13. Mounting platform, 14. Dial indicator;

[0022] 61. Collet clamp, 62. Screw cap. Detailed Implementation

[0023] 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.

[0024] This utility model provides a four-axis adjustment device for spline machining, see details below. Figure 1 The difference between this and existing technologies is that the four-axis adjustment device includes a set of corresponding four-axis rotary tables 1 and tailstocks 2. The four-axis rotary tables and tailstocks cooperate with each other to clamp the workpiece 3. A flange 4 is provided on the four-axis rotary table, and a flange seat 5 with clearance fit is provided inside the flange. A clamping component 6 is provided on the flange seat, and a positioning component that cooperates with the clamping component is provided on the tailstock. The workpiece is placed between the clamping component and the positioning component. A locking component 7 is provided on one side of the flange, and an adjusting component 8 is provided on the other side. A locking hole that cooperates with the locking component is provided on one side of the flange seat, and an adjusting groove that cooperates with the adjusting component is provided on the other side.

[0025] During use, the position between the flange seat and the flange can be adjusted by the combined action of the adjusting and locking components, so that the area to be processed can be adjusted to the required range. This ensures that the runout of the area to be processed meets the processing requirements, while avoiding quality problems caused by multi-process clamping and tolerance factors, thus improving product consistency and quality.

[0026] Example 1

[0027] In this embodiment, the four-axis adjustment device includes a set of corresponding four-axis turntables 1 and tailstocks 2. The four-axis turntables and tailstocks cooperate with each other to clamp the workpiece 3. A flange 4 is provided on the four-axis turntable, and a flange seat 5 with clearance fit is provided inside the flange. A clamping assembly 6 is provided on the flange seat, and a positioning assembly with the clamping assembly is provided on the tailstock. The workpiece is placed between the clamping assembly and the positioning assembly. A locking member 7 is provided on one side of the flange, and an adjusting member 8 is provided on the other side. A locking hole with the locking member is provided on one side of the flange seat, and an adjusting groove with the adjusting member is provided on the other side.

[0028] Specifically, the clamping assembly includes a collet 61 and a cap 62. The cap has an internal thread, and one end of the flange seat has an external thread that mates with the internal thread. The collet is fixedly connected to the flange seat by the cap. The collet has a clamping hole on its end face for clamping the workpiece being processed. The collet is truncated cone-shaped, and one end of the flange has a collet mounting hole that mates with it. The collet has evenly distributed shrinkage grooves around its circumference. The collet is fixed to the flange by the cap.

[0029] Furthermore, locking component 7 is a locking screw with a pointed, tapered end for better fixation; adjusting component 8 is an adjusting screw with an outwardly convex arc-shaped end. The diameter of the arc-shaped end is larger than the diameter of the adjusting screw body, with the optimal end diameter being 1.6 times the body diameter. Both the adjusting screw and the flange seat use high-precision ultra-fine threads, enabling higher resolution and more precise adjustment when reading the maximum runout value of the product surface using dial indicator 14.

[0030] Furthermore, the positioning assembly includes a movable block 9, one end of which has a center 10. The end of the center has a working plane for abutting against the end of the workpiece. The center and the collet together form a clamping clamp on the workpiece. Unlike traditional conical tailstock clamping with a center hole, the circular platform improves the rigidity of the workpiece and the machining area is unaffected by the center hole, allowing for easy correction. Moreover, one end of the flange seat has an external thread, and the cap has a matching internal thread. A positioning block is provided between the flange seat and the flange plate, facilitating quick installation and positioning of the workpiece and improving work efficiency.

[0031] A positioning rod 11 is provided between the flange seat and the flange for installation and positioning; the four-axis rotary table and the tailstock are set on a base 12, and the two ends of the base are respectively provided with protruding mounting platforms 13 for mounting the four-axis rotary table and the tailstock.

[0032] Example 2

[0033] In this embodiment, the four-axis adjustment device includes a set of corresponding four-axis rotary tables and tailstocks. The four-axis rotary tables and tailstocks cooperate with each other to clamp the workpiece. A flange is provided on the four-axis rotary table, and a flange seat with clearance fit is provided inside the flange. A clamping component is provided on the flange seat, and a positioning component that cooperates with the clamping component is provided on the tailstock. The workpiece is placed between the clamping component and the positioning component. A locking component is provided on one side of the flange, and an adjusting component is provided on the other side. A locking hole that cooperates with the locking component is provided on one side of the flange seat, and an adjusting groove that cooperates with the adjusting component is provided on the other side.

[0034] In specific usage, the flange inner hole and the flange seat outer diameter are fitted with a clearance, the clearance value being the maximum adjustment range of this device. The locking element is a locking screw with a pointed, tapered end for better fixation. The adjusting element is an adjusting screw with an outwardly convex arc-shaped end, the diameter of which is larger than the diameter of the screw body. Rotating the adjusting screw causes effective displacement of the flange, facilitating precise adjustment. The locking screw head is tapered, and the flange seat has a matching tapered hole, ensuring a secure and complete lock between the flange and the flange seat, guaranteeing safety during operation.

[0035] The center point, together with the collet, clamps the workpiece. Unlike traditional conical tailstocks clamped with a center hole, the circular platform increases the rigidity of the workpiece, and the machining area is unaffected by the center hole, allowing for easy correction. Furthermore, one end of the flange seat has an external thread, and the cap has a matching internal thread. A positioning rod is located between the flange seat and the flange plate, facilitating quick installation and positioning of the workpiece, improving work efficiency. This positioning rod is positioned between two locking screws for better positioning and minimizes the impact of adjusting the screws, ensuring adjustment accuracy.

[0036] To meet the machining requirements of spline shafts, the profile of the forming tool used to machine the spline shaft must be within 0.02mm of the profile of the tooth surface of the spline shaft. At the same time, since the raw material of the spline shaft has the characteristics of high strength and high hardness, in order to improve the tool life, the tool surface is coated with high-strength, high-temperature resistant coatings such as titanium boride (TiB2) and chromium nitride (CrTiCN).

[0037] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A four-axis adjustment device for spline machining, characterized by: The four-axis adjustment device includes a set of corresponding four-axis turntable and tailstock. The four-axis turntable is provided with a flange, and the flange is provided with a flange seat that is clearance-fitted with it. The flange seat is provided with a clamping component, and the tailstock is provided with a positioning component that cooperates with the clamping component. The flange has a locking element on one side and an adjusting element on the other side; the flange seat has a locking hole on one side that mates with the locking element and an adjusting groove on the other side that mates with the adjusting element.

2. The four-axis adjustment device for spline machining according to claim 1, characterized in that: The clamping assembly includes a collet and a cap. The cap has an internal thread on its inner side, and one end of the flange seat has an external thread that mates with the internal thread. The collet and the flange seat are fixedly connected by the cap.

3. The four-axis adjustment device for spline machining according to claim 1, characterized in that: The locking component is a locking screw with a pointed, conical end; the adjusting component is an adjusting screw with an arc-shaped end, the diameter of which is larger than the diameter of the adjusting screw body.

4. The four-axis adjustment device for spline machining according to claim 2, characterized in that: The collet end face is provided with a clamping hole for clamping the workpiece being processed.

5. The four-axis adjustment device for spline machining according to claim 1, characterized in that: The positioning component includes a movable block, one end of which is provided with a center, and the end of the center is provided with a working surface.

6. The four-axis adjustment device for spline machining according to claim 1, characterized in that: A positioning rod is provided between the flange seat and the flange plate; the four-axis rotary table and the tailstock are mounted on a base, and the two ends of the base are respectively provided with raised mounting platforms for mounting the four-axis rotary table and the tailstock.

Images