A plating apparatus large-stroke counterweight mechanism

Abstract

The utility model discloses a kind of plating instrument large-stroke counterweight mechanisms, including mechanism support and long arm lever connected by fixed pivot and mechanism support, long arm lever is connected with short arm lever by first pivot, short arm lever is connected with fixed foot by second pivot, and fixed foot is fixed on the Z-axis assembly needing counterweight;Connecting head is connected with long arm lever by third pivot, screw one end is fixed on connecting head, and the other end of screw is connected with the connecting stop bar passing through the directional hole of mechanism support, and connecting stop bar and screw are constrained by the directional hole on mechanism support;Nut, spring seat, mould spring are sequentially installed on screw, the upper end of mould spring is equipped with convex stop ring, and convex stop ring and concave stop ring cooperate as the fixed side support of mould spring;The utility model can be simple and compact in structure, easy to install, structure is adjusted, screw rod and sliding rail wear slow down, ensure long-time precision, so that stability is high service life is long, greatly reduce maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of X-ray detection and relates to a large-stroke counterweight mechanism for coating instruments. Background Technology

[0002] In the process of using X-rays to detect the thickness of electroplated layers, an X-ray generator emits X-rays, which are then irradiated onto the surface of the sample through a specific collimating aperture. The electroplated layer of the sample absorbs the X-ray energy, and the outer electrons undergo transitions, releasing energy. The detection device detects the released energy, thereby calculating the thickness of the electroplated layer. The Z-axis assembly of the coating analysis instrument includes core components such as X-ray tubes and high voltage, resulting in a relatively heavy Z-axis assembly. Relying solely on motor power to drive the Z-axis assembly to rise or fall requires a large amount of power, and at the same time, it causes severe wear on the lead screw and slide rail, easily leading to a loss of accuracy. Therefore, it is necessary to find a corresponding mechanism or method. Utility Model Content

[0003] In view of this, to overcome at least one of the aforementioned defects in the prior art, this utility model provides a large-stroke counterweight mechanism for a coating instrument, comprising: a mechanism support and a long arm connected to the mechanism support via a fixed pivot pin, the long arm being rotatable along the fixed pivot pin, the long arm being connected to a short arm via a first pivot pin, the short arm being connected to a fixed foot via a second pivot pin, the fixed foot being fixed to the Z-axis assembly requiring counterweight by screws; a connecting head being connected to the long arm via a third pivot pin, one end of a screw being threaded onto the connecting head, the other end of the screw being connected to a connecting stop rod passing through a directional hole in the mechanism support, the connecting stop rod and the screw moving left and right along the directional hole on the mechanism support; when the fixed foot moves with the Z-axis assembly... When the shaft assembly moves downward, the short arm connected to the fixed foot via a pivot pin also moves downward. The long arm connected to the short arm via a pivot pin rotates along the fixed pivot pin under the drive. The rotation of the long arm along the fixed pivot pin drives the connector and screw to move to the left along the orientation hole on the mechanism bracket. The spring seat installed on the screw compresses the mold spring under the push of the nut. The upper end of the mold spring is equipped with a convex retaining ring, which cooperates with the concave retaining ring to serve as the fixed side support of the mold spring. The compression force of the mold spring is used to balance the weight of the Z-axis assembly. When the fixed foot moves upward with the Z-axis assembly, the short arm connected to the fixed foot via a pivot pin also moves upward. The long arm connected to the short arm via a pivot pin rotates along the fixed pivot pin under the drive. The rotation of the long arm along the fixed pivot pin drives the connector and screw to move to the right along the orientation hole on the mechanism bracket. The compressed mold spring pushes the spring seat, screw, and connecting stop rod installed on the screw to move to the right. The compression force of the mold spring is used to balance the weight of the Z-axis assembly.

[0004] As described in the background section of this utility model, the Z-axis assembly of a coating analysis instrument includes core components such as an X-ray tube and a high-voltage system, resulting in a relatively heavy Z-axis assembly. Relying solely on motor power to drive the Z-axis assembly upwards or downwards requires significant power, and also causes severe wear on the lead screw and slide rail, easily leading to a loss of accuracy. However, the large-stroke counterweight mechanism for coating instruments disclosed in this utility model utilizes a linkage mechanism of long and short arms to amplify the small stroke of the mold spring, achieving a large-stroke counterweight. This results in a simple and compact structure, convenient installation, easy adjustment, reduced wear on the lead screw and slide rail, ensuring long-term accuracy, high stability, long service life, and significantly reduced maintenance costs.

[0005] Specific process: When the fixed foot moves downward along with the Z-axis assembly, the short arm connected to the fixed foot via a pivot pin also moves downward. The long arm connected to the short arm via a pivot pin rotates along the fixed pivot pin under the drive. The rotation of the long arm along the fixed pivot pin drives the connector and screw to move to the left along the orientation hole on the mechanism bracket. The spring seat installed on the screw compresses the mold spring under the push of the nut. The upper end of the mold spring is equipped with a convex retaining ring, which cooperates with the concave retaining ring to serve as the fixed side support of the mold spring. The compression force of the mold spring is used to balance the gravity of the Z-axis assembly. When the fixed foot moves upward along with the Z-axis assembly, the short arm connected to the fixed foot via a pivot pin also moves upward. The long arm connected to the short arm via a pivot pin rotates along the fixed pivot pin under the drive. The rotation of the long arm along the fixed pivot pin drives the connector and screw to move to the right along the orientation hole on the mechanism bracket. The compressed mold spring pushes the spring seat, screw, and connecting stop rod installed on the screw to move to the right. The compression force of the mold spring is used to balance the gravity of the Z-axis assembly.

[0006] In addition, the large-stroke counterweight mechanism of the coating instrument disclosed in this utility model also has the following additional technical features:

[0007] Furthermore, the protective cover counterweight mechanism utilizes the spring force of the mold to balance the gravitational torque of the protective cover, and the magnitude of the balancing force can be adjusted by adjusting the nut, thereby providing balancing assistance for the Z-axis assembly to rise and fall.

[0008] Furthermore, the directional hole on the mechanism support is an elongated through hole, the length direction of which is consistent with the movement direction of the connecting stop and the screw, and is used to restrict the connecting stop and the screw to move left and right only along the direction of the directional hole.

[0009] Furthermore, the fixed pivot pin, the first pivot pin, the second pivot pin, and the third pivot pin are all stepped shaft structures, with their large-diameter ends fixed to the corresponding mounting components through a hole-shaft interference fit, and their small-diameter ends used to connect other components.

[0010] Furthermore, the spring seat has an annular groove at one end near the mold spring, and the lower end of the mold spring is embedded in the annular groove to prevent the mold spring from shifting during compression and release.

[0011] Furthermore, the convex retaining ring is fixedly connected to the mechanism support by bolts, and the inner ring of the concave retaining ring is provided with a stepped surface that matches the outer ring of the convex retaining ring. The two work together to form a limiting structure for the upper end of the mold spring.

[0012] Furthermore, the length of the long arm is greater than the length of the short arm, with a length ratio of 3:1 to 5:1, to amplify the small stroke of the mold spring into a large stroke counterweight for the Z-axis assembly. Furthermore, the side of the fixed foot connected to the Z-axis assembly is provided with anti-slip teeth, which cooperate with the grooves on the surface of the Z-axis assembly to enhance the stability of the connection between the fixed foot and the Z-axis assembly.

[0013] Furthermore, the end of the screw connected to the connector is provided with an anti-loosening nut, which is used to prevent the screw from loosening and falling off the connector during long-term use.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

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

[0017] Figure 2 This is a partial cross-sectional schematic diagram of the present invention;

[0018] Among them, 1-mechanism bracket, 2-third pivot pin, 3-connector, 4-screw, 5-nut, 6-spring seat, 7-mold spring, 8-convex retaining ring, 9-concave retaining ring, 10-connecting stop bar, 11-first pivot pin, 12-short arm, 13-second pivot pin, 14-fixed foot, 15-long arm, 16-guide pin, 17-fixed pivot pin. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "connection," "linking," "fitting," and "cooperation" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium; "fitting" can refer to the fit between surfaces, the fit between a point and a surface or a line and a surface, and also includes the fit between a hole and a shaft. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] The large-stroke counterweight mechanism of the coating instrument of this utility model will now be described with reference to the accompanying drawings. Figure 1-2 These are the overall assembly diagram and partial cross-sectional diagram of this utility model.

[0023] According to embodiments of the present invention, such as Figure 2The system includes a support frame (1) and a long arm (15) connected to the support frame (1) via a fixed pivot pin (17). The long arm (15) can rotate along the fixed pivot pin (17). The long arm (15) is connected to a short arm (12) via a first pivot pin (11). The short arm (12) is connected to a fixed foot (14) via a second pivot pin (13). The fixed foot (14) is fixed to the Z-axis assembly that needs counterweight by screws. The connector (3) is connected to the long arm (15) via a third pivot pin (2). One end of the screw (4) is fixed to the connector (3) by threads. The other end of the screw (4) is connected to the connecting stop (10) that passes through the directional hole of the support frame (1). The connecting stop (10) and the screw (4) move left and right along the directional hole on the support frame (1). When the fixed foot (14) moves with the Z-axis assembly, the long arm (15) rotates along the fixed pivot pin (17). When the shaft assembly moves downward, the short arm (12) connected to the fixed foot (14) via the pivot pin (13) also moves downward. The long arm (15) connected to the short arm (12) via the pivot pin (11) rotates along the fixed pivot pin (17) under the drive. The rotation of the long arm (15) along the fixed pivot pin (17) drives the connector (3) and the screw (4) to move to the left along the orientation hole on the mechanism bracket (1). The spring seat (6) installed on the screw (4) compresses the mold spring (7) under the push of the nut (5). The upper end of the mold spring (7) is equipped with a convex retaining ring (8). The convex retaining ring (8) and the concave retaining ring (9) cooperate to serve as the fixed side support of the mold spring (7). The compression force of the mold spring (7) is used to balance the gravity of the Z-axis assembly. When the fixed foot (14) moves upward with the Z-axis assembly, the long arm (15) connected to the fixed foot (14) via the pivot pin (13) rotates downward. The connected short arm (12) also moves upward. The long arm (15) connected to the short arm (12) via the pivot pin (11) rotates along the fixed pivot pin (17) under the drive. The rotation of the long arm (15) along the fixed pivot pin (17) drives the connector (3) and the screw (4) to move to the right along the orientation hole on the mechanism bracket (1). The compressed mold spring (7) pushes the spring seat (6), screw (4), and connecting stop (10) installed on the screw (4) to move to the right. The compression force of the mold spring (7) balances the gravity of the Z-axis assembly.

[0024] Specific process: When the fixed foot (14) moves downward along with the Z-axis assembly, the short arm (12) connected to the fixed foot (14) via the pivot pin (13) also moves downward. The long arm (15) connected to the short arm (12) via the pivot pin (11) rotates along the fixed pivot pin (17) under the drive. The rotation of the long arm (15) along the fixed pivot pin (17) drives the connector (3) and the screw (4) to move to the left along the directional hole on the mechanism bracket (1). The spring seat (6) installed on the screw (4) compresses the mold spring (7) under the push of the nut (5). The upper end of the mold spring (7) is equipped with a convex retaining ring (8). The convex retaining ring (8) and the concave retaining ring (9) cooperate as the fixed side support of the mold spring (7). The compression force of the mold spring (7) is used to balance the Z-axis. The weight of the shaft assembly; when the fixed foot (14) moves upward along with the Z-axis assembly, the short arm (12) connected to the fixed foot (14) through the pivot pin (13) also moves upward. The long arm (15) connected to the short arm (12) through the pivot pin (11) rotates along the fixed pivot pin (17) under the drive. The rotation of the long arm (15) along the fixed pivot pin (17) drives the connector (3) and the screw (4) to move to the right along the orientation hole on the mechanism bracket (1). The compressed mold spring (7) pushes the spring seat (6), the screw (4), and the connecting stop (10) installed on the screw (4) to move to the right. The compression force of the mold spring (7) balances the weight of the Z-axis assembly.

[0025] According to some embodiments of the present invention, the protective cover counterweight mechanism uses the spring force of the mold to balance the gravitational torque of the protective cover, and the adjusting nut (5) can adjust the magnitude of the balancing force, thereby realizing the function of providing balancing assistance for the Z-axis assembly to rise and fall.

[0026] According to some embodiments of the present invention, the directional hole on the mechanism support (1) is an elongated through hole, the length direction of which is consistent with the movement direction of the connecting stop (10) and the screw (4), and is used to restrict the connecting stop (10) and the screw (4) to move left and right only along the direction of the directional hole.

[0027] According to some embodiments of the present invention, the fixed pivot pin (17), the first pivot pin (11), the second pivot pin (13) and the third pivot pin (2) are all stepped shaft structures. Their large diameter ends are fixed to the corresponding mounting components through a hole-shaft interference fit, and their small diameter ends are used to connect other components.

[0028] According to some embodiments of the present invention, the spring seat (6) is provided with an annular groove at one end near the mold spring (7), and the lower end of the mold spring (7) is embedded in the annular groove to prevent the mold spring (7) from shifting during compression and release.

[0029] According to some embodiments of the present invention, the convex retaining ring (8) and the mechanism bracket (1) are fixedly connected by bolts, and the inner ring of the concave retaining ring (9) is provided with a stepped surface that matches the outer ring of the convex retaining ring (8). The two cooperate to form a limiting structure for the upper end of the mold spring (7).

[0030] According to some embodiments of the present invention, the length of the long arm (15) is greater than the length of the short arm (12), and the ratio of their lengths is 3:1 to 5:1, so as to realize the amplification of the small stroke of the mold spring (7) into the large stroke counterweight of the Z-axis assembly.

[0031] According to some embodiments of the present invention, the side of the fixed foot (14) connected to the Z-axis assembly is provided with anti-slip teeth, which cooperate with the groove on the surface of the Z-axis assembly to enhance the stability of the connection between the fixed foot (14) and the Z-axis assembly.

[0032] According to some embodiments of this utility model, the end of the screw (4) connected to the connector (3) is provided with an anti-loosening nut, which is used to prevent the screw (4) from loosening and falling off the connector (3) during long-term use.

[0033] Any reference to "an embodiment," "embodiment," "illustrative embodiment," etc., means that the specific component, structure, or feature described in connection with that embodiment is included in at least one embodiment of this utility model. Such illustrative expressions throughout this specification do not necessarily refer to the same embodiment. Furthermore, when a specific component, structure, or feature is described in connection with any embodiment, it is claimed that implementing such a component, structure, or feature in connection with other embodiments falls within the scope of those skilled in the art.

[0034] Although the specific embodiments of this utility model have been described in detail with reference to several illustrative examples, it should be understood that those skilled in the art can devise various other modifications and embodiments that fall within the spirit and scope of the principles of this utility model. Specifically, reasonable variations and modifications can be made to the arrangement of components and / or dependent combinations within the scope of the foregoing disclosure, drawings, and claims without departing from the spirit of this utility model. The scope of these variations and modifications, except for those concerning components and / or layout, is defined by the appended claims and their equivalents.

Claims

1. A long-stroke counterweight mechanism for a coating instrument, characterized in that: The system includes a support frame (1) and a long arm (15) connected to the support frame (1) via a fixing pin (17). The long arm (15) is connected to a short arm (12) via a first pin (11), and the short arm (12) is connected to a fixed foot (14) via a second pin (13). The fixed foot (14) is fixed to the Z-axis assembly that requires counterweight. A connector (3) is connected to the long arm (15) via a third pin (2). One end of a screw (4) is fixed to the connector (3), and the other end of the screw (4) is connected to a connecting stop (10) that passes through a directional hole in the support frame (1). The connecting stop (10) and the screw (4) are constrained by the directional hole on the support frame (1). A nut (5), a spring seat (6), and a mold spring (7) are sequentially installed on the screw (4). The mold spring (7) The upper end is equipped with a convex retaining ring (8), which cooperates with the concave retaining ring (9) to serve as a fixed side support for the mold spring (7).

2. The large-stroke counterweight mechanism for the coating instrument according to claim 1, characterized in that: The directional hole on the mechanism support for restricting the connecting stop (10) and screw (4) to move only along the length direction is an elongated through hole, and the length direction is consistent with the movement direction of the connecting stop (10) and screw (4).

3. The large-stroke counterweight mechanism for the coating instrument according to claim 1, characterized in that: The fixed pivot (17), the first pivot (11), the second pivot (13) and the third pivot (2) are all stepped shaft structures.

4. The large-stroke counterweight mechanism for the coating instrument according to claim 1, characterized in that: The spring seat (6) has an annular groove at one end near the mold spring (7), and the lower end of the mold spring (7) is embedded in the annular groove.

5. The large-stroke counterweight mechanism for the coating instrument according to claim 1, characterized in that: The convex retaining ring (8) and the mechanism bracket (1) are fixedly connected by bolts. The inner ring of the concave retaining ring (9) is provided with a stepped surface that matches the outer ring of the convex retaining ring (8). The two work together to form a limiting structure for the upper end of the mold spring (7).

6. The large-stroke counterweight mechanism for the coating instrument according to claim 1, characterized in that: The length of the long arm (15) is greater than the length of the short arm (12), and the ratio of their lengths is 3:1 to 5:

1.

7. The large-stroke counterweight mechanism for the coating instrument according to claim 1, characterized in that: The fixed foot (14) is provided with anti-slip teeth on the side connected to the Z-axis assembly, and the anti-slip teeth cooperate with the grooves on the surface of the Z-axis assembly.

8. The large-stroke counterweight mechanism for the coating instrument according to claim 1, characterized in that: The end of the screw (4) connected to the connector (3) is provided with a locking nut.

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