A snap ring assembly device and method compatible with various shaft parts

Abstract

The application belongs to the technical field of intelligent manufacturing, and particularly discloses a snap ring assembling device and method compatible with various shaft parts, which comprises an operation table, a servo mechanical structure and a snap ring; the servo mechanical structure is arranged on the operation table, and the snap ring is clamped on the servo mechanical structure during use; according to a pattern of a shaft part to be machined, a snap ring corresponding to the pattern of the shaft part to be machined is selected; automatic displacement cooperating with the servo mechanical structure is completed; and the servo mechanical structure after automatic displacement is taken as a reference to assemble the shaft part to be machined and the corresponding snap ring. According to the pattern of the shaft part to be machined, the shaft part to be machined and the snap ring are assembled in advance, axial mechanical stops are provided for the shaft part to be machined, an end-to-face axial dimension reference is formed, and within an acceptable precision range, the problems of re-establishing a workpiece coordinate system and re-establishing a tool reference during machining of the product can be avoided, and the production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of intelligent manufacturing technology, specifically relating to a snap ring assembly device and method compatible with various types of shaft parts. Background Technology

[0002] Mass production machining tooling and fixture technology is widely used in the manufacturing industry. In conventional mass production processes, machining tooling and fixtures are usually specially designed, manufactured, and pre-calibrated, fixed on the machine tool's worktable, establishing a unified machining coordinate system and tool reference, thereby enabling direct machining of the workpiece and improving production efficiency. However, when processing small batches of diverse products, due to the varying dimensions and shapes of the products, repeated adjustments to the machine tool fixtures and machining coordinate system are required, leading to low machine tool efficiency. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a snap ring assembly device and method compatible with various shaft parts, so as to solve the problem of low machine tool efficiency caused by repeated adjustments of machine tool fixtures and machining coordinate systems when processing small batches of multi-variety products.

[0004] To achieve the above objectives, the present invention employs the following technical solution:

[0005] On one hand, the present invention provides a snap ring assembly device compatible with various shaft parts, characterized in that it includes: an operating table, a servo mechanical structure and a snap ring; the servo mechanical structure is set on the operating table, and the snap ring is clamped on the servo mechanical structure during use.

[0006] Furthermore, the servo mechanical structure includes: a servo single axis, a slide table, a manual clamp, a reference surface, and a servo single axis mounting plate; the reference surface is set on the operating table, the servo single axis mounting plate is vertically set on the reference surface, the servo single axis is mounted on the servo single axis mounting plate, the slide table is set in the middle of the servo single axis, and the manual clamp is fixedly connected to the slide table; a servo motor is also installed on the servo single axis for controlling the movement of the servo single axis.

[0007] Furthermore, during use, a shaft-like part is placed on the reference surface, and the retaining ring is fitted onto the shaft-like part.

[0008] Furthermore, the retaining ring is clamped onto a manual clamp.

[0009] Furthermore, the retaining ring is provided with two bolt holes, and fastening bolts are connected to both bolt holes to change the diameter of the retaining ring.

[0010] Furthermore, the shaft-type parts are plain round shafts or stepped shafts.

[0011] Furthermore, the outer circle of the retaining ring has a fixed shape and fixed size, while the inner circle size is the same as that of shaft-type parts.

[0012] On the other hand, the present invention provides a snap ring assembly method compatible with multiple types of shaft parts, and a snap ring assembly device compatible with multiple types of shaft parts as described in any of the above claims, comprising:

[0013] Step S101: Select a retaining ring that corresponds to the drawing of the shaft part to be processed;

[0014] Step S102: Based on the drawing of the shaft part to be processed, complete the automatic repositioning of the servo mechanical structure.

[0015] Step S103: Using the servo mechanical structure that has completed automatic displacement as a reference, assemble the shaft parts to be processed with the corresponding retaining rings.

[0016] Furthermore, in step S102, the automatic repositioning of the servo mechanical structure based on the drawing of the shaft-type part to be processed specifically involves:

[0017] The external control information system obtains the positioning coordinates based on the machine tool machining axial zero point parameters set according to the requirements of the CNC machining process, and sends drive commands to the servo mechanical structure to realize the automatic displacement of the servo mechanical structure. After receiving the target coordinates, the servo single axis uses the reference surface of the servo mechanical structure as the reference, and drives the slide surface of the servo mechanical structure and the manual clamp to move to the target coordinate value through the servo motor, thus completing the automatic displacement of the servo mechanical structure and realizing the automatic alignment and calibration of the axial positioning dimensions of the workpiece to be processed.

[0018] Furthermore, the assembly of the shaft-like part to be machined with the corresponding retaining ring in step S103 specifically involves:

[0019] Place the machined reference end face of the shaft part on the reference surface of the servo mechanical structure. Slide the retaining ring onto the shaft part and place it on the slide surface of the servo mechanical structure. Push the manual clamp to clamp the retaining ring. Check that the shaft part and the reference surface of the servo mechanical structure fit tightly. Set the fastening bolts on the bolt holes and use an Allen wrench to tighten the fastening bolts on the retaining ring. After the fastening bolts are tightened, release the manual clamp and remove the shaft part and retaining ring as a whole.

[0020] The present invention has at least the following beneficial effects:

[0021] 1. Based on the drawing of the shaft part to be processed, the present invention pre-assembles the shaft part to be processed with the retaining ring, provides an axial mechanical stop for the shaft part to be processed, and forms an axial dimension reference from end to surface. Within an acceptable accuracy range, it can avoid the problem of re-establishing the workpiece coordinate system and re-establishing the tool reference during product processing, thereby improving production efficiency.

[0022] 2. In the various shaft-type parts compatible retaining ring mechanical structure provided by this invention, the inner diameter of the retaining ring is in direct contact with the shaft-type parts and needs to be customized to match the outer diameter of the shaft-type parts' clamping position. The outer diameter size and shape of the retaining ring can be designed according to actual production needs and can be standardized to meet the production requirements of automated loading and unloading of products.

[0023] 3. The servo automatic positioning mechanical structure of the present invention obtains positioning coordinates according to an external control information system and sends drive commands to the servo mechanical structure for automatic positioning. The servo mechanical structure completes automatic positioning, providing a clear physical reference and effectively reducing the probability of human error. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0025] In the attached diagram:

[0026] Figure 1 This is a schematic diagram of the servo mechanical structure;

[0027] Figure 2 A schematic diagram of the assembly process for retaining rings that are compatible with various types of shaft parts;

[0028] Figure 3 This is a structural schematic diagram of a shaft-type part;

[0029] Figure 4 This is a schematic diagram of the clasp structure;

[0030] Reference numerals: 100, shaft-type parts; 110, retaining ring; 111, bolt hole; 120, operating table; 121, servo single axis; 122, slide surface; 123, manual clamp; 124, reference surface; 125, servo single axis mounting plate. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0032] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0033] Example 1

[0034] like Figure 1 As shown, a snap ring assembly device compatible with various shaft parts includes: an operating table 120, a servo mechanical structure, and a snap ring 110; the servo mechanical structure is mounted on the operating table 120, and the snap ring 110 is clamped onto the servo mechanical structure during use.

[0035] The servo mechanical structure includes: a servo single axis 121, a slide surface 122, a manual clamp 123, a reference surface 124, and a servo single axis mounting plate 125; the reference surface 124 is set on the operating table 120, the servo single axis mounting plate 125 is vertically set on the reference surface 124, the servo single axis 121 is mounted on the servo single axis mounting plate 125, the slide surface 122 is set in the middle of the servo single axis 121, and the manual clamp 123 is fixedly connected to the slide surface 122.

[0036] In use, a shaft-like part 100 is placed on the reference surface 124, a retaining ring 110 is fitted onto the shaft-like part 100, and the retaining ring 110 is clamped on the manual clamp 123. A servo motor is also installed on the servo single axis 121 to control the movement of the servo single axis 121.

[0037] The retaining ring 110 has two bolt holes 111, and fastening bolts are connected to both bolt holes 111 to change the diameter of the retaining ring 110.

[0038] In one embodiment, the shaft part 100 is a smooth round shaft or a stepped shaft, etc. Figure 3 As shown. The outer circle of the retaining ring 110 has a fixed shape and size, while the inner circle size is the same as that of the shaft part 100, as shown. Figure 4 As shown.

[0039] Example 2

[0040] like Figure 2 As shown, a snap ring assembly method compatible with various shaft parts includes:

[0041] Step S101: Select a retaining ring 110 corresponding to the drawing of the shaft part 100 to be processed;

[0042] Step S102: Based on the drawing of the shaft part 100 to be processed, complete the automatic positioning of the servo mechanical structure. The external control information system obtains the positioning coordinates according to the machine tool machining axial zero-point parameters set by the CNC machining process requirements, and sends drive commands to the servo mechanical structure to achieve automatic positioning. After receiving the target coordinates, the servo single axis 121 uses the reference surface 124 of the servo mechanical structure as a reference, and drives the slide surface 122 and manual clamp 123 of the servo mechanical structure to move to the target coordinate value via the servo motor, completing the automatic positioning of the servo mechanical structure, thereby achieving automatic alignment and calibration of the axial positioning dimensions of the part to be processed.

[0043] Step S103: Using the servo mechanical structure that has completed automatic positioning as a reference, assemble the shaft part 100 to be machined with the corresponding retaining ring 110. Place the machining reference end face of the shaft part 100 on the reference surface 124 of the servo mechanical structure, put the retaining ring 110 onto the shaft part 100, and place it on the slide surface 122 of the servo mechanical structure. Push the manual clamp 123 to clamp the retaining ring 110, check that the shaft part 100 and the reference surface 124 of the servo mechanical structure are tightly fitted, set the fastening bolt in the bolt hole 111, and tighten the fastening bolt with an Allen wrench; after the fastening bolt is tightened, release the manual clamp 123 and remove the shaft part 100 and retaining ring 110 as a whole.

[0044] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A snap ring assembly method compatible with various shaft parts, characterized by, The snap ring assembly is assembled by using a snap ring assembly device, and the snap ring assembly device comprises an operation table (120), a servo mechanical structure and a snap ring (110); the servo mechanical structure is arranged on the operation table (120), and the snap ring (110) is clamped on the servo mechanical structure during use; The servo mechanical structure comprises a servo single shaft (121), a sliding table surface (122), a manual clamp (123), a reference surface (124) and a servo single shaft mounting plate (125); the reference surface (124) is arranged on the operation table (120), the servo single shaft mounting plate (125) is arranged vertically on the reference surface (124), the servo single shaft (121) is mounted on the servo single shaft mounting plate (125), the middle part of the servo single shaft (121) is provided with the sliding table surface (122), and the sliding table surface (122) is fixedly connected with the manual clamp (123); a servo motor is further mounted on the servo single shaft (121) and used for controlling movement of the servo single shaft (121); two bolt holes (111) are arranged on the snap ring (110), and fastening bolts are connected to the two bolt holes (111) and used for changing the diameter of the snap ring (110); The snap ring assembly method compatible with various shaft parts comprises the following steps: Step S101: according to a drawing of a shaft part (100) to be machined, a snap ring (110) corresponding to the drawing of the shaft part (100) to be machined is selected; Step S102: according to the drawing of the shaft part (100) to be machined, automatic displacement of the servo mechanical structure is completed, specifically as follows: an external control information system obtains positioning coordinates according to machine tool machining axial zero point parameters set according to a machining process requirement, and sends a driving instruction to the servo mechanical structure, so as to realize automatic displacement of the servo mechanical structure; after receiving target coordinates, the servo single shaft (121) takes the reference surface (124) of the servo mechanical structure as a reference, moves the sliding table surface (122) and the manual clamp (123) of the servo mechanical structure to the target coordinate value through the servo motor, completes automatic displacement of the servo mechanical structure, and realizes automatic alignment and calibration of an axial positioning dimension of the shaft part to be machined; Step S103: taking the servo mechanical structure after completing the automatic displacement as a reference, the shaft part (100) to be machined and the corresponding snap ring (110) are assembled, specifically as follows: a machining reference end surface of the shaft part (100) is placed on the reference surface (124) of the servo mechanical structure, the snap ring (110) is sleeved on the shaft part (100) and placed on the sliding table surface (122) of the servo mechanical structure, the manual clamp (123) is pushed to clamp the snap ring (110), it is checked that the shaft part (100) is closely attached to the reference surface (124) of the servo mechanical structure, the fastening bolts are arranged on the bolt holes (111), and the fastening bolts are tightened by using an internal hex wrench; after the fastening bolts are tightened, the manual clamp (123) is loosened, and the shaft part (100) and the snap ring (110) are taken out as a whole. During use, the shaft part (100) is placed on the reference surface (124), and the snap ring (110) is sleeved on the shaft part (100). ​ 2. The snap ring assembly method compatible with various shaft parts according to claim 1, wherein ​ 3. The method of claim 1, wherein, The snap ring (110) is clamped on a manual clamp (123).

4. The method of claim 2, wherein, The shaft part (100) is a round shaft or a stepped shaft.

5. The method of claim 2, wherein, The outer circle of the snap ring (110) is fixed in shape and size, and the inner circle has the same size as the shaft part (100).

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