Clamping device for coating PVD (Physical Vapor Deposition) coating on surface of differential shaft

Abstract

The utility model discloses a clamping device for coating a PVD (Physical Vapor Deposition) coating on the surface of a differential shaft. The supporting column is arranged on the base; the upper disc is connected with the supporting column opposite to the other side of the base; the clamping mechanism is connected with the upper disc; the clamping device for coating the PVD coating on the surface of the differential shaft has a shielding effect, can coat partial structure of the differential shaft, is convenient to operate, and improves the coating efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of PVD coating on the surface of a differential shaft, in particular to a clamping device for PVD coating on the surface of a differential shaft. Background Art

[0002] PVD technology involves using physical methods under vacuum conditions to vaporize the surface of a material source (solid or liquid) into gaseous atoms or molecules, or partially ionize it into ions. Through a low-pressure gas (or plasma) process, a thin film with specialized properties is deposited on the substrate surface. PVD is a major surface treatment technique. PVD coating technologies are primarily categorized into three types: vacuum evaporation, vacuum sputtering, and vacuum ion plating. The main methods of physical vapor deposition include vacuum evaporation, sputtering, arc plasma, ion plating, and molecular beam epitaxy. Corresponding vacuum coating equipment includes vacuum evaporation, sputtering, and vacuum ion plating machines. With advancements in deposition methods and technologies, physical vapor deposition can deposit not only metal and alloy films, but also compounds, ceramics, semiconductors, and polymer films.

[0003] Depending on the application scenario, the differential shaft is not coated on its entire structure, and one end is not coated. The clamping mechanism currently on the market does not have a partial shielding function, and needs to be manually masked before being placed in the fixture for coating. The operation is cumbersome and the coating efficiency is low. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a clamping device for PVD coating of the surface of the differential shaft, which has a shielding effect, can coat the partial structure of the differential shaft, is easy to operate, and improves the coating efficiency.

[0005] The purpose of the utility model is achieved in the following manner: a clamping device for PVD coating of a differential shaft surface, comprising:

[0006] base;

[0007] A support column is provided on the base;

[0008] an upper plate connected to the support column on the other side of the base;

[0009] a clamping mechanism connected to the upper plate;

[0010] The clamping mechanism includes: a motor, which is arranged on the upper plate; an adjusting wheel, which is connected to the motor and the supporting column; and a clamping part, which is connected to the adjusting wheel and the upper plate.

[0011] As an optional solution of the technical solution of the utility model, a curve block is provided on the adjusting wheel;

[0012] The clamping part includes: an adjusting shaft connected to the upper plate; a driven adjusting wheel connected to the adjusting shaft; a first adjusting rod connected to the driven adjusting wheel; a first limit block connected to the upper plate, the first adjusting rod passing through the first limit block, the first limit block being used to limit the movement of the first adjusting rod; a second adjusting rod being hinged to the first adjusting rod; a third adjusting rod being hinged to the second adjusting rod; a second limit block connected to the upper plate, the third adjusting rod passing through the second limit block, the second limit block being used to limit the movement of the third adjusting rod; a fourth adjusting rod being hinged to the second adjusting rod and the third adjusting rod; a fifth adjusting rod, the middle part of which is hinged to the fourth adjusting rod, a spring being provided at one end and a clamping block being provided at the other end; the spring being connected to the fourth adjusting rod.

[0013] As an optional solution of the technical solution of the present utility model, a magnetic block is provided on the base for preliminarily fixing the differential shaft.

[0014] As an optional solution of the technical solution of the present utility model, the clamping block is provided with an arc-shaped fixing surface for fitting and clamping the differential shaft.

[0015] The advantageous effects of the present invention are as follows: a clamping device for PVD coating of a differential shaft surface is provided, wherein a motor drives an adjusting wheel to rotate, which in turn drives a driven adjusting wheel to rotate via a curved block. When the driven adjusting wheel rotates, a first adjusting rod is driven to move, which in turn drives a second adjusting rod to rotate, which in turn drives a fourth adjusting rod and a third adjusting rod to rotate, which in turn drives a fifth adjusting rod to move. When a clamping block is subjected to pressure, a tension spring of the fifth adjusting rod is pulled to rotate. The differential shaft is initially fixed by a magnetic block. If the differential shaft is not positioned precisely, the clamping block cannot directly clamp the differential shaft. In this case, the tension spring of the fifth adjusting rod is rotated, which also positions the differential shaft. The spring drives the clamping block via the fifth adjusting rod to clamp the differential shaft. At this time, the curved fixing surface perfectly fits the surface of the differential shaft, clamping the differential shaft and shielding the non-coating area, achieving a shielding effect. Coating of a partial structure of the differential shaft is possible, facilitating operation and improving coating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a schematic diagram of a clamping device for applying a PVD coating to the surface of a differential shaft according to Example 1 of the utility model;

[0018] Figure 2 Schematic diagram of a clamping mechanism of a clamping device for PVD coating of a differential shaft surface according to embodiment 1 of the present invention Figure 1 ;

[0019] Figure 3 Schematic diagram of a clamping mechanism of a clamping device for PVD coating of a differential shaft surface according to embodiment 1 of the present invention Figure 2 ;

[0020] Figure 4 Schematic diagram of a clamping mechanism of a clamping device for PVD coating of a differential shaft surface according to embodiment 1 of the present invention Figure 3 .

[0021] Reference numerals:

[0022] 1. Base; 2. Support column; 3. Upper plate; 401. Motor; 402. Magnetic block; 403. Adjusting wheel; 404. Clamping part; 405. Adjusting shaft; 406. Second limit block; 407. First adjusting rod; 408. First limit block; 409. Second adjusting rod; 410. Fourth adjusting rod; 411. Fifth adjusting rod; 412. Clamping block; 413. Third adjusting rod; 414. Curve block; 415. Spring; 416. Fixing surface; 417. Driven adjusting wheel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In the description of the embodiments, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, connections through an intermediary medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on their specific circumstances.

[0026] Example 1

[0027] like Figure 1 Figure 3 shows a clamping device for PVD coating of a differential shaft surface, comprising: a base 1, a support column 2, an upper plate 3, and a clamping mechanism, wherein: the support column 2 is provided on the base 1; the upper plate 3 is connected to the support column 2 on the other side of the base 1; and the clamping mechanism is connected to the upper plate 3.

[0028] Specifically, the clamping mechanism includes: a motor 401, an adjusting wheel 403, and a clamping portion 404, wherein: the motor 401 is arranged on the upper plate 3; the adjusting wheel 403 is connected to the motor 401 and to the support column 2; the clamping portion 404 is connected to the adjusting wheel 403 and to the upper plate 3.

[0029] As shown in Figure 4, as a further solution of this embodiment, a curved block 414 is provided on the adjusting wheel 403; the clamping portion 404 includes: an adjusting shaft 405, a driven adjusting wheel 417, a first adjusting rod 407, a first limit block 408, a second adjusting rod 409, a third adjusting rod 413, a fourth adjusting rod 410, and a fifth adjusting rod 411, wherein: the adjusting shaft 405 is connected to the upper plate 3; the driven adjusting wheel 417 is connected to the adjusting shaft 405; the first adjusting rod 407 is connected to the driven adjusting wheel 417; the first limit block 408 is connected to the upper plate 3, the first adjusting rod 407 passes through the first limit block 408, and the first limit The positioning block 408 is used to limit the movement of the first adjusting rod 407; the second adjusting rod 409 is hinged to the first adjusting rod 407; the third adjusting rod 413 is hinged to the second adjusting rod 409; the second limit block 406 is connected to the upper plate 3, the third adjusting rod 413 passes through the second limit block 406, and the second limit block 406 is used to limit the movement of the third adjusting rod 413; the fourth adjusting rod 410 is hinged to the second adjusting rod 409 and the third adjusting rod 413; the middle part of the fifth adjusting rod 411 is hinged to the fourth adjusting rod 410, one end is provided with a spring 415, and the other end is provided with a clamping block 412; the spring 415 is connected to the fourth adjusting rod 410. The motor 401 drives the adjusting wheel 403 to rotate, and the adjusting wheel 403 drives the driven adjusting wheel 417 to rotate through the curve block 414. When the driven adjusting wheel 417 rotates, it drives the first adjusting rod 407 to move, and the first adjusting rod 407 drives the second adjusting rod 409 to rotate. The second adjusting rod 409 drives the fourth adjusting rod 410 and the third adjusting rod 413 to rotate. The fourth adjusting rod 410 drives the fifth adjusting rod 411 to move. When the clamping block 412 is subjected to pressure, the fifth adjusting rod 411 pulls the spring 415 to rotate.

[0030] As shown in 1-2, as a further solution of this embodiment, a magnetic block 402 is provided on the base 1 for preliminarily fixing the differential shaft.

[0031] As shown in FIG4 , as a further solution of this embodiment, the clamping block 412 is provided with an arc-shaped fixing surface 416 for fitting and clamping the differential shaft.

[0032] The working process of this embodiment is as follows: first, the uncoated end of the differential shaft is placed on the magnetic block 402 for preliminary fixation; then, the motor is controlled to rotate so that the two clamping blocks 412 move toward the differential shaft; if the position of the differential shaft is not particularly accurate, the clamping block 412 cannot directly fit and clamp the differential shaft. At this time, the fifth adjustment rod 411 stretches the spring 415 to rotate, and the position of the differential shaft will also be positioned. The spring 415 drives the clamping block 412 to fit and clamp the differential shaft through the fifth adjustment rod 411. At this time, the arc-shaped fixing surface 416 perfectly fits the surface of the differential shaft, clamps the differential shaft, and at the same time shields the non-coated area.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. In addition, the technical solutions of the various embodiments may be combined with each other, but this must be based on the fact that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions is inconsistent or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A clamping device for PVD coating of differential shaft surface, characterized in that: include: Base (1); A support column (2) is provided on the base (1); an upper plate (3) connected to the support column (2) on the other side relative to the base (1); A clamping mechanism connected to the upper plate (3); The clamping mechanism comprises: a motor (401) provided on the upper plate (3); an adjusting wheel (403) connected to the motor (401) and connected to the support column (2); and a clamping portion (404) connected to the adjusting wheel (403) and connected to the upper plate (3).

2. The clamping device for PVD coating of a differential shaft surface according to claim 1, characterized in that: The regulating wheel (403) is provided with a curve block (414); The clamping portion (404) includes: an adjusting shaft (405) connected to the upper plate (3); a driven adjusting wheel (417) connected to the adjusting shaft (405); a first adjusting rod (407) connected to the driven adjusting wheel (417); a first limiting block (408) connected to the upper plate (3), wherein the first adjusting rod (407) passes through the first limiting block (408), and the first limiting block (408) is used to limit the movement of the first adjusting rod (407); a second adjusting rod (409) hinged to the first adjusting rod (407); a third adjusting rod (413) hinged to the upper plate (3); The second adjusting rod (409) is hinged; the second limiting block (406) is connected to the upper plate (3); the third adjusting rod (413) passes through the second limiting block (406); the second limiting block (406) is used to limit the movement of the third adjusting rod (413); the fourth adjusting rod (410) is hinged to the second adjusting rod (409) and the third adjusting rod (413); the fifth adjusting rod (411) is hinged to the fourth adjusting rod (410) at the middle part, and a spring (415) is provided at one end and a clamping block (412) is provided at the other end; the spring (415) is connected to the fourth adjusting rod (410).

3. The clamping device for PVD coating of a differential shaft surface according to claim 1, characterized in that: The base (1) is provided with a magnetic block (402) for preliminarily fixing the differential shaft.

4. The clamping device for PVD coating of a differential shaft surface according to claim 2, characterized in that: The clamping block (412) is provided with an arc-shaped fixing surface (416) for fitting and clamping the differential shaft.

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