Mounting bracket of proximity switch for secondary falling device of press machine

Abstract

A mounting bracket of a proximity switch for a secondary falling device of a press machine comprises an adjusting bracket and a fixed bracket, the adjusting bracket and the fixed bracket are both L-shaped, an adjusting groove is formed in one end of the adjusting bracket and one end of the fixed bracket in a matched mode, a rod portion of a fastening bolt can penetrate through the adjusting groove, and the adjusting bracket and the fixed bracket are fixed through a nut to be integrally in a step shape. The other end of the fixing support is provided with a plurality of holes and connected with the top end of the machine body through screws, the proximity switch is clamped at the other end of the adjusting support through a positioning nut and a locking nut, and the size of the adjusting groove is suitable for vertical displacement of the proximity switch. According to the utility model, the fixed bracket and the adjusting bracket are matched for installation, and the sensing position between the proximity switch and the sensing sheet can be freely adjusted in multiple directions by utilizing the adjusting groove on each bracket, so that the design requirement is met. Manual punching is adopted, mounting holes can be conveniently machined in the machine body, and the position degree requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of presses, in particular to a mounting bracket for a proximity switch used in a secondary drop device of a press. Background Art

[0002] The press second drop device is a press safety detection device that can effectively detect press crankshaft breakage, continuous punching, brake slippage and other faults to protect personal safety. Figure 1 As shown, first, the installation hole processing is inconvenient, because the upper structure of the press is compact, including the installation of the balance cylinder, connecting rod oil pipe, front bearing oil circuit and the connecting plate welded to the press body itself, the internal space is small, and processing is required from the outside to penetrate the steel plate; processing from the outside, due to the deformation of the fuselage welding, a small amount of shaft penetration, etc., the installation position cannot be well guaranteed; secondly, installation and debugging are inconvenient; due to the large vibration of the press, thread fastening glue needs to be applied to the installation screws to prevent loosening in the later stage, and there is a certain distance requirement between the proximity switch 2' and the sensor plate 3'. The bracket 1' is installed on the inside of the fuselage, and the installation and debugging distance is very inconvenient. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention aims to provide a mounting bracket for a proximity switch for a secondary drop device of a press, thereby resolving the problems of difficulty in machining a mounting hole on the press body and inconvenience in adjusting the position of the proximity switch.

[0004] The utility model is realized through the following technical solutions:

[0005] A mounting bracket for a proximity switch for a second-drop device of a press comprises: an adjusting bracket and a fixing bracket, wherein both the adjusting bracket and the fixing bracket are L-shaped, and each is provided with an adjusting slot at one end thereof, through which the rod of a fastening bolt can pass, and after being fixed with a nut, the whole is in a step shape; the other end of the fixing bracket is provided with several holes connected to the top of the machine body by screws; the other end of the adjusting bracket is clamped with a proximity switch by a positioning nut and a locking nut, and the size of the adjusting slot is suitable for the vertical displacement of the proximity switch.

[0006] Preferably, the adjusting slots at the joint of the adjusting bracket and the fixing bracket are arranged side by side and parallel to each other, and are fixed by a pair of fastening bolts.

[0007] More preferably, a limiting protrusion is provided on the rod of the fastening bolt near the head, and the limiting protrusion is engaged with the groove wall of the adjustment groove.

[0008] Preferably, a plurality of elliptical holes are provided on the other end of the fixing bracket, and the size of the elliptical holes is suitable for the horizontal displacement of the proximity switch, and the holes are connected to the top of the body by screws.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] This new design replaces the existing single mounting bracket with a fixed bracket and an adjustable bracket. The adjustment slots on each bracket allow for multi-directional adjustment of the sensing position between the proximity switch and the sensor plate, allowing for flexible adjustment to meet design requirements. This facilitates disassembly and commissioning of the installed switch, making operation more convenient. This new design improves on the manual punching method, facilitating the machining of mounting holes on the machine body and ensuring accurate positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing 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 creative work.

[0012] Figure 1 This is a schematic diagram of the structure of a proximity switch for a press secondary drop device installed using an existing bracket;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the mounting bracket of the proximity switch for the second drop device of the press machine according to the present invention;

[0014] Figure 3 This is a front view structural diagram of the mounting bracket of the proximity switch for the second drop device of the press machine according to the present invention;

[0015] Figure 4 This is a schematic structural diagram of the fastening bolt of the utility model.

[0016] In the figure: 1. Adjusting bracket, 2. Fixing bracket, 201. Elliptical hole, 3. Adjusting slot, 4. Fastening bolt, 401. Limiting protrusion, 5. Nut, 6. Proximity switch, 7. Screw, 8. Positioning nut, 9. Locking nut, 10. Sensor plate. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention 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, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0018] The technical solution of the present utility model is further described below with reference to the accompanying drawings. Figure 1-4 A mounting bracket for a proximity switch for a press's secondary drop mechanism is shown. The bracket comprises an adjustable bracket 1 and a fixed bracket 2. Both brackets are L-shaped, each with an adjustment slot 3 at one end. This slot allows for the rod of a fastening bolt 4 to pass through. Nuts 5 secure the brackets together, creating a stepped overall shape. The other end of the fixed bracket 2 features several holes connected to the top of the press body via screws 7. These holes can be drilled on-site to match the corresponding holes on the top of the press body, facilitating the machining of mounting holes on the press body. This ensures precise installation and facilitates installation, disassembly, and commissioning. A proximity switch 6 is secured to the other end of the adjustable bracket 1 via a locating nut 8 and a locking nut 9. The adjustment slot 3 is sized to accommodate the vertical displacement of the proximity switch 6, allowing it to contact a sensor plate 10 as needed. By using a coordinated fixed and adjustable bracket, replacing the existing single mounting bracket, the adjustment slots on each bracket allow for multi-directional adjustment of the sensing position between the proximity switch and the sensor plate, allowing for flexible adjustment to meet design requirements. This facilitates disassembly and commissioning of the installed switch, making operation more convenient.

[0019] Two parallel adjustment slots 3 are provided at the joint between the adjustable bracket 1 and the fixed bracket 2. Pairs of fastening bolts 4 secure the two brackets, ensuring a more secure connection between them. The proximity switch position can be adjusted vertically beforehand to ensure effective contact between the proximity switch 6 and the sensor plate 10. Finally, the fixed bracket 2 is secured to the adjustable bracket 1 using the pair of fastening bolts 4 and matching nuts 5.

[0020] As an embodiment of the present invention, a limiting protrusion 401 is constructed on the rod of the fastening bolt 4 near the head position, which is just clamped on the groove wall of the adjustment groove 3. When the nut 5 is tightened, the fastening bolt 4 will not rotate, and the thread fastening glue applied on the rod of the fastening bolt 4 can be eliminated, thereby reducing the overall installation links.

[0021] The other end of the fixing bracket 2 is provided with a plurality of elliptical holes 201, and the size of the elliptical holes 201 is suitable for the horizontal displacement of the proximity switch 6. The position of the proximity switch 6 can be appropriately adjusted horizontally to the left and right to facilitate effective contact between the proximity switch 6 and the sensor sheet 10, and is connected to the top of the fuselage by screws 7.

[0022] In summary, the mounting bracket of the proximity switch for the second drop device of the press of the present invention can facilitate the processing of mounting holes on the machine body and ensure the accuracy of the mounting position. At the same time, it has the characteristics of free adjustment of the front, back, left, right, up and down positions, making debugging more convenient.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mounting bracket for a proximity switch for a second drop device of a press, characterized by: The invention comprises an adjusting bracket (1) and a fixing bracket (2), wherein the adjusting bracket (1) and the fixing bracket (2) are both L-shaped, and an adjusting slot (3) is provided at one end thereof, through which the rod of a fastening bolt (4) can pass, and after being fixed by a nut (5), the whole is in a step shape, and the other end of the fixing bracket (2) is provided with a plurality of holes and connected to the top of the machine body by screws (7), and the other end of the adjusting bracket (1) is clamped with a proximity switch (6) by a positioning nut (8) and a locking nut (9), and the size of the adjusting slot (3) is suitable for the vertical displacement of the proximity switch (6).

2. The mounting bracket for a proximity switch for a press secondary drop device according to claim 1, characterized in that: The adjusting slots (3) at the joint of the adjusting bracket (1) and the fixing bracket (2) are arranged side by side and are arranged in parallel with each other, and are fixed by a pair of fastening bolts (4).

3. The mounting bracket for the proximity switch for the second drop device of a press according to claim 2, characterized in that: A limiting protrusion (401) is provided on the rod of the fastening bolt (4) near the head, and is engaged with the groove wall of the adjustment groove (3).

4. The mounting bracket for a proximity switch for a press secondary drop device according to claim 1, characterized in that: The other end of the fixing bracket (2) is provided with a plurality of elliptical holes (201), and the size of the elliptical holes (201) is suitable for the horizontal displacement of the proximity switch (6), and is connected to the top of the machine body through screws (7).

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