Travel switch assembly

Abstract

The utility model relates to the technical field of grinding belt sanders, and discloses a travel switch assembly, which aims to solve the technical problem of lead breakage caused by up-and-down movement of an inductive switch, and comprises a support shaft and a mounting plate respectively used for fixedly connecting the support shaft and an external component, and a guide seat and an oil seal seat are sleeved outside the support shaft. The supporting shaft penetrates through a lower sealing plate of the grinding head, the oil seal seat is fixedly installed at the top of the lower sealing plate, the guide seat is installed at the bottom of the lower sealing plate, the top of the supporting shaft is fixedly connected with a locking plate, a limiting adjusting plate is installed on the locking plate, and a proximity sensor is installed at the top of the limiting adjusting plate. A limiting induction locking plate installed on a vertical plate in the grinding head is arranged, a limiting induction plate is installed on the limiting induction locking plate, and a hole used for induction of the proximity sensor is formed in the limiting induction plate. The limiting induction plate moves, and the proximity sensor does not move, so that the problem that a lead of the proximity sensor is broken due to up-down movement is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to abrasive belt machine technical field especially relates to a travel switch assembly. BACKGROUND

[0002] In the abrasive belt machine equipment, such as Figure 1 and Figure 2 As shown in the grinding head structure, the overall design is used to meet the high-precision grinding demand, has the complicated mechanical structure and the accurate control system. The grinding head structure includes two ball screw elevators 23 distributed symmetrically left and right, two ball screw elevators 23 are connected through the lifter connecting rod 22, thereby keeping synchronous lifting movement. The lifter connecting rod 22 is fixedly installed with speed reducer 25 at one end, the speed reducer 25 is connected to servo motor 24 through mechanical transmission, the servo motor 24 drives the lifter connecting rod 22 to rotate through the driving speed reducer 25, further drives the screw rod in the ball screw 23 to realize accurate lifting adjustment. The structure guarantees that the grinding head can accurately adjust the height according to the processing demand, and adapts to different grinding tasks.

[0003] To realize the real-time monitoring of the motion state of ball screw elevator 23 and the intelligent control of the equipment, the inductive switch is installed inside the grinding head, and the lifting position of the ball screw is monitored through the induction signal. However, in the existing equipment, the inductive switch is in a motion state for a long time, and the wire is repeatedly stretched and bent, which leads to wire breakage, which is a common problem. This problem directly affects the normal operation of the equipment during use, often leading to equipment downtime for maintenance, thereby increasing maintenance cost and downtime, and having poor reliability. In addition, the installation position of the inductive switch and the protection measures of the motion wire in the traditional design are not considered, and there is lack of design for effectively optimizing the motion characteristics of the wire, which further aggravates the frequency of wire breakage. This not only reduces the service life of the equipment, but also affects the efficiency and stability of the grinding operation.

[0004] The above-mentioned problems existing in the existing equipment bring many challenges to the operation reliability and service life of the equipment in actual application, especially in high-load and high-frequency grinding operation. Therefore, how to optimize the installation and design of the inductive switch to avoid the problem of wire breakage caused by up-down motion has become a technical problem to be solved. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a travel switch assembly, which solves the technical problem of wire breakage caused by the up-down motion of the inductive switch.

[0006] To achieve the above-mentioned purpose, the specific technical scheme of a travel switch assembly of the utility model is as follows:

[0007] A travel switch assembly applied to a grinding head structure, comprising a support shaft and mounting plates for fixedly connecting the support shaft and external components respectively, a guide seat and an oil seal seat are externally sleeved on the support shaft, the support shaft penetrates through a lower sealing plate of the grinding head, the oil seal seat is fixedly installed on the top of the lower sealing plate, the guide seat is installed on the bottom of the lower sealing plate, the top of the support shaft is fixedly connected with a locking plate, a limit adjusting plate is installed on the locking plate, and a proximity sensor is installed on the top of the limit adjusting plate; a limit sensing locking plate is installed on a central plate in the grinding head, a limit sensing plate is installed on the limit sensing locking plate, and a hole for sensing the proximity sensor is arranged on the limit sensing plate.

[0008] By fixing the wires of the proximity sensor and using metal parts for displacement operation, the limit sensing plate moves with the vertical plate, while the proximity sensor is stationary, avoiding the problem of broken wires caused by up-down movement, effectively improving the service life and operation reliability of the equipment, reducing maintenance costs, and meeting the demand for high stability and long service life of the grinding belt machine equipment. By externally sleeving the guide seat and the oil seal seat on the support shaft, the sealing performance is optimized and the stability of the overall structure is improved.

[0009] Further, the limit adjusting plate is provided with a strip-shaped groove for facilitating up-down adjustment of the installation position. The design of the strip-shaped groove provides flexible up-down adjustment function, so that the installation height of the proximity sensor can be accurately adjusted according to the demand, improving the applicability of the equipment in different working scenarios and enhancing the convenience and operation efficiency.

[0010] Further, the locking plate is in the shape of a rectangular flat plate, and the locking plate is provided with mounting holes for fixing the limit adjusting plate.

[0011] Further, the support shaft is in the shape of a cylinder, and a semicircular entity is formed by cutting the upper end of the support shaft, which has a mounting step for supporting and fixing the locking plate. The semicircular cutting design of the support shaft maintains the overall strength while forming a stable mounting step, which provides firm support for the fixation of the locking plate, avoids displacement or loosening of the locking plate, and ensures the stability and durability of the overall structure.

[0012] The travel switch assembly provided by the utility model has the following advantages:

[0013] After improvement, the fixed wire position and metal part displacement design are adopted, the limit sensing plate moves with the vertical plate, while the proximity sensor is stationary, solving the problem of broken wires. The new design reduces the risk of wire breakage and improves the service life and reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A grinding head structure is provided for the utility model;

[0015] Figure 2The utility model provides a grinding head structure diagram of removing seal plate and vertical plate.

[0016] Figure 3 The utility model provides travel switch assembly structure diagram.

[0017] Figure 4 The utility model provides travel switch assembly dismounting structure diagram.

[0018] In the drawing: 11, mounting plate; 12, support shaft; 13, guide seat; 14, oil seal seat; 15, locking plate; 16, limit adjusting plate; 17, proximity sensor; 18, limit sensing plate; 19, limit sensing locking plate; 21, lower seal plate; 22, lifter connecting rod; 23, ball screw elevator; 24, servo motor; 25, speed reducer; 26, guide base; 27, guide column; 28, connecting plate; 29, vertical plate. DETAILED DESCRIPTION

[0019] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is in conjunction with the drawing and example, and this utility model is further detailedly explained.It should be understood that the specific example described here is only used to explain the utility model, and is not used to limit the utility model.

[0020] Referring to Figure 1 and Figure 2 In the grinding head structure, seal plate is equipped between two ball screw elevators 23, left and right sides and upper and lower sides, vertical plate 29 is arranged on front and rear sides, and closed space is formed.

[0021] The bottom of ball screw elevator 23 is guide base 26, guide base 26 is located in the lower part of lower seal plate 21 simultaneously, copper sleeve and guide column 27 are sequentially arranged in guide base 26 from outside, the length of guide column 27 is greater than copper sleeve and guide base 26, and the bottom of guide column 27 is connecting plate 28.

[0022] Referring to Figure 3 and Figure 4 and combining Figure 1 and Figure 2 A travel switch assembly is applied to the grinding head structure, comprising mounting plate 11, support shaft 12 is installed on mounting plate 11, guide seat 13 and oil seal seat 14 are arranged on the outer sleeve of support shaft 12, oil seal seat 14 is located on the upper part of guide seat 13, support shaft 12 penetrates lower seal plate 21, oil seal seat 14 is fixedly installed on the top of lower seal plate 21, guide seat 13 is installed on the bottom of lower seal plate 21, and mounting plate 11 is fixedly installed on the bottom of guide column 27.

[0023] The mounting plate 11 is a whole base component, located at the bottom of the structure, used for fixing the whole assembly.

[0024] The mounting plate 11 is vertically mounted with a support shaft 12, which is in a cylindrical structure, and the upper end is cut to form a semicircular solid, with a mounting step to support and fix the locking plate 15.

[0025] The guide seat 13 is cylindrical, with a flange mounting disc, and the inner hole matches the outer diameter of the support shaft 12, used for sleeving on the support shaft 12, and the lower part cooperates with the support shaft 12 to have a guiding function.

[0026] The upper and lower cooperation of the guide seat 13 and the oil seal seat 14 ensures the sealing performance of the assembly through close cooperation, preventing external impurities from entering.

[0027] The limiting sensing locking plate 19 is fixedly connected to the vertical plate 29, and the limiting sensing plate 18 is fixedly installed on the limiting sensing locking plate 19, and the limiting sensing plate 18 is provided with a hole for sensing.

[0028] The locking plate 15 is in a rectangular flat plate shape, and the locking plate 15 is provided with a mounting hole for fixing the limiting adjusting plate 16, and the limiting adjusting plate 16 is provided with a strip-shaped groove for conveniently adjusting the height, and the proximity sensor 17 is fixedly installed on the upper part of the limiting adjusting plate 16.

[0029] In summary, the travel switch assembly provided by the utility model improves the existing technology in the structure design, and the travel switch assembly solves the technical problem that the proximity sensor wire is broken due to up-down movement during use of the grinding belt machine equipment.

[0030] The utility model fixes the wire position of the proximity sensor, realizes displacement operation by using metal parts, makes the limiting sensing plate move with the vertical plate, and the proximity sensor body remains stationary. This design effectively avoids wire breakage caused by frequent up-down movement, significantly improves the operation reliability and service life of the equipment, greatly reduces the maintenance frequency and maintenance cost of the equipment, and meets the technical requirements of modern grinding belt machines for high stability and long-time efficient operation.

[0031] In addition, the external structure of the support shaft is optimized in function, including sleeving the guide seat and the oil seal seat, which are installed at the bottom and top of the lower sealing plate respectively, to ensure the movement stability of the support shaft, and through the close cooperation between the guide seat and the oil seal seat, the sealing performance of the whole structure is effectively improved. This sealing design can effectively prevent external impurities (such as dust and particles) from entering the inside of the assembly, protect the normal operation of the core components, prolong the working life of the equipment, and at the same time enhance the adaptability of the equipment in complex working conditions.

[0032] Meanwhile, the support shaft adopts a cylindrical structure, the upper end of which is cut to form a semicircular entity and is designed with a mounting step, which facilitates stable support of the locking plate, ensures installation accuracy, and improves the fixing effect of the locking plate. The locking plate adopts a rectangular flat plate structure and is reliably connected with the limiting adjustment plate through the mounting hole, further enhancing the structural stability of the overall assembly. The limiting adjustment plate is designed with a strip-shaped groove for facilitating up-down adjustment of the installation position, and the proximity sensor is precisely installed on the top of the limiting adjustment plate through the up-down adjustment function of the strip-shaped groove, which not only meets the diversified installation requirements, but also improves the adjustment flexibility and sensing accuracy of the equipment.

[0033] The limiting sensing plate moves under the driving of the vertical plate, and the proximity sensor remains stationary. This combination of dynamic and static design can effectively avoid the fatigue damage problem caused by the frequent movement of the wire with the component in the traditional sensing switch, greatly improving the reliability of the equipment during operation.

[0034] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A travel switch assembly comprising a support shaft (12) and a mounting plate (11) for fixedly connecting the support shaft (12) and an external member, respectively, characterized in that, The support shaft (12) is externally sleeved with a guide seat (13) and an oil seal seat (14), the support shaft (12) penetrates a lower sealing plate (21) of the grinding head, the oil seal seat (14) is fixedly installed on the top of the lower sealing plate (21), the guide seat (13) is installed on the bottom of the lower sealing plate (21), the top of the support shaft (12) is fixedly connected with a locking plate (15), the locking plate (15) is installed with a limiting adjusting plate (16), the top of the limiting adjusting plate (16) is installed with a proximity sensor (17); a limiting sensing locking plate (19) installed on a middle plate (29) of the grinding head is arranged, the limiting sensing locking plate (19) is installed with a limiting sensing plate (18), the limiting sensing plate (18) is provided with a hole for the proximity sensor (17) to sense.

2. A travel switch assembly according to claim 1, wherein, The limiting adjusting plate (16) is provided with a strip-shaped groove for facilitating up-down adjustment of the installation position.

3. A travel switch assembly according to claim 2, wherein, The locking plate (15) is in the shape of a rectangular flat plate, and the locking plate (15) is provided with an installation hole for fixing the limiting adjusting plate (16).

4. The travel switch assembly of claim 3, wherein, The support shaft (12) is in a cylindrical structure, and the upper end thereof is cut to form a semicircular solid body, which is provided with an installation step for supporting and fixing the locking plate (15).

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