A clamp anti-loose support

Abstract

This application relates to the field of welding fixture technology, specifically disclosing a fixture anti-loosening bracket, including a mounting bracket, a metal sensing sensor, a locking nut, a positioning sleeve, and a positioning pin. The mounting bracket has a mounting hole, through which the metal sensing sensor passes and is mounted on the mounting bracket by the locking nuts. There are two locking nuts, each abutting against both ends of the mounting hole. A positioning sleeve is also provided in the mounting hole of the mounting bracket, and the positioning sleeve is threadedly engaged with the metal sensing sensor. The side wall of the positioning sleeve has a positioning hole, and the mounting bracket has a through hole corresponding to the position of the positioning hole. The positioning pin is installed in the through hole and the positioning hole to position the positioning sleeve and prevent the positioning sleeve and the metal sensing sensor from rotating. The positioning sleeve, in conjunction with the locking nut, can effectively prevent the metal sensing sensor from loosening. The positioning pin positions the positioning sleeve, and the positioning sleeve, in conjunction with the locking nut, can effectively prevent the metal sensing sensor from loosening.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically a fixture anti-loosening bracket. Background Technology

[0002] When welding metal parts, fixtures are typically used to position the parts to ensure accurate welding position and quality. To determine if the fixture is accurately holding the parts, a metal sensor is installed on the fixture to detect them. If the part is detected by the metal sensor, the clamping and positioning are accurate, and welding can begin. If the part is not detected, the position is inaccurate, and the part needs to be adjusted to ensure accurate positioning. Metal sensors, also known as proximity sensors, are categorized into three types: those using electromagnetic induction and high-frequency oscillation, those using magnetic force, and those using capacitance changes. They can detect metal objects approaching the sensor without actual contact. Capacitive proximity sensors consist of a high-frequency oscillator and an amplifier. The sensor's detection surface and the external environment form a capacitor, participating in the oscillation circuit. Initially, the sensor is in an oscillating state. When an object approaches the sensor's detection surface, the circuit capacitance changes, causing the high-frequency oscillator to oscillate. These two states—oscillation and cessation—are converted into electrical signals, which are then amplified into binary switching signals. These switching signals are transmitted to the welding system to determine whether welding can begin.

[0003] like Figure 3 As shown, metal sensors are typically mounted on fixtures using mounting brackets. The metal sensor is cylindrical with a sensing head that houses the sensing circuitry. It is powered by a power cord and transmits signals via a signal line. The outer surface of the metal sensor has threads and locking nuts that mate with these threads. In the diagram, the metal sensor passes through the mounting hole in the bracket and is secured with two locking nuts, which abut against both ends of the mounting hole. Because the fixture needs to clamp multiple parts for welding daily, excessive clamping movement can easily cause the metal sensor to loosen, affecting detection accuracy. If the metal sensor loosens, it becomes impossible to confirm whether the parts are accurately clamped and positioned, preventing welding operations. Therefore, the mounting bracket needs to be improved to prevent the metal sensor from loosening. Utility Model Content

[0004] To address the shortcomings of existing technologies, the present invention provides a clamp anti-loosening bracket, which solves the problem that existing clamps are prone to loosening of metal sensing sensors after repeated movements.

[0005] To solve the above problems, the technical solution adopted by this utility model is: a clamp anti-loosening bracket, including a mounting bracket, a metal sensing sensor, a locking nut, a positioning sleeve, and a positioning pin. The mounting bracket has a mounting hole, and the metal sensing sensor passes through the mounting hole of the mounting bracket and is mounted on the mounting bracket by the locking nuts. There are two locking nuts, which abut against the two ends of the mounting hole respectively. The mounting hole of the mounting bracket also has a positioning sleeve, which is threadedly engaged with the metal sensing sensor. The side wall of the positioning sleeve has a positioning hole, and the mounting bracket has a through hole corresponding to the position of the positioning hole. The positioning pin is installed in the through hole and the positioning hole to position the positioning sleeve and prevent the positioning sleeve and the metal sensing sensor from rotating. The positioning sleeve, together with the locking nut, can effectively prevent the metal sensing sensor from loosening.

[0006] The beneficial effects of this solution are as follows: Compared with the prior art, the clamp anti-loosening bracket of this utility model sets a positioning sleeve in the mounting hole of the mounting bracket. The positioning sleeve is threaded with the metal sensing sensor. The positioning sleeve is provided with a positioning hole and a positioning pin is set to position the positioning sleeve, preventing the positioning sleeve and the metal sensing sensor from rotating. The positioning sleeve, together with the locking nut, can effectively prevent the metal sensing sensor from loosening.

[0007] Furthermore, there are two positioning holes, and two corresponding through holes and positioning pins, which can ensure the stable installation and positioning of the positioning sleeve.

[0008] Furthermore, the positioning pin is an elastic cylindrical pin, which is interference-fitted with the through hole and the positioning hole to ensure stable installation of the positioning pin.

[0009] Furthermore, the positioning sleeve is made of copper, which is softer than the material of the metal sensor. It will not damage the metal sensor during the threaded engagement process and can protect the metal sensor.

[0010] Furthermore, the positioning sleeve has a cylindrical structure, and the inner hole of the positioning sleeve is threaded to engage with the external thread of the metal sensing sensor.

[0011] Furthermore, the positioning sleeve and the mounting hole of the mounting bracket are fitted with a clearance fit, making installation convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a schematic diagram illustrating the combination of a mounting bracket and a metal sensing sensor in existing technology. In the diagram: 1. Mounting bracket; 2. Metal sensor; 3. Locking nut; 4. Positioning sleeve; 5. Positioning pin. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Implementation, for example, attached Figures 1 to 2 As shown: A clamp anti-loosening bracket includes a mounting bracket 1, a metal sensing sensor 2, a locking nut 3, a positioning sleeve 4, and a positioning pin 5. The mounting bracket 1 has a mounting hole. The metal sensing sensor 2 passes through the mounting hole of the mounting bracket 1 and is mounted on the mounting bracket 1 by the locking nuts 3. There are two locking nuts 3, which abut against the two ends of the mounting hole respectively. The mounting hole of the mounting bracket 1 also has a positioning sleeve 4, which is threadedly engaged with the metal sensing sensor 2. The side wall of the positioning sleeve 4 has two positioning holes. There are also two corresponding through holes and positioning pins 5, which can ensure the stable installation and positioning of the positioning sleeve 4. The mounting bracket 1 has through holes corresponding to the positions of the positioning holes. The positioning pins 5 are installed in the through holes and positioning holes to position the positioning sleeve 4 and prevent the positioning sleeve 4 and the metal sensing sensor 2 from rotating. The positioning sleeve 4, together with the locking nuts 3, can effectively prevent the metal sensing sensor 2 from loosening.

[0015] The positioning pin 5 is an elastic cylindrical pin, which is interference-fitted with the through hole and the positioning hole to ensure stable installation of the positioning pin 5. The positioning sleeve 4 is made of copper, which is softer than the material of the metal sensor 2. It will not damage the metal sensor 2 during the threaded engagement and can protect the metal sensor 2. The positioning sleeve 4 has a cylindrical structure, and the inner hole of the positioning sleeve 4 is threaded to engage with the external thread of the metal sensor 2. The positioning sleeve 4 is clearance-fitted with the mounting hole of the mounting bracket 1 for easy installation.

[0016] The specific implementation process is as follows: During installation, first remove the locking nut 3 at the head of the metal sensor 2. Then, install the positioning sleeve 4 onto the metal sensor 2 via threads. Next, insert the metal sensor 2 and the positioning sleeve 4 into the mounting hole on the mounting bracket 1, aligning the positioning hole on the positioning sleeve 4 with the through hole on the mounting bracket 1. Install the positioning pin 5 in the positioning hole and through hole to fix and limit the positioning sleeve 4. Rotate the metal sensor 2 to adjust its sensing working surface to the detection position. Install the locking nut 3 to lock and fix the metal sensor 2. Due to the positioning sleeve 4 and positioning pin 5, the axial and radial positions of the positioning sleeve 4 are limited. Both the locking nuts 3 and the positioning sleeve 4 limit and prevent loosening of the metal sensor 2, making it difficult to loosen. Even if one of the locking nuts 3 loosens after multiple movements of the fixture, the other locking nut 3 and the positioning sleeve 4 can still lock the metal sensor 2, preventing it from easily rotating or moving. This effectively prevents the metal sensor 2 from loosening and ensures its detection accuracy.

[0017] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A clamp anti-loosening bracket, comprising a mounting bracket, a metal sensing sensor, a locking nut, a positioning sleeve, and a positioning pin, wherein the mounting bracket has a mounting hole, the metal sensing sensor passes through the mounting hole of the mounting bracket, and is mounted on the mounting bracket by the locking nuts, wherein there are two locking nuts, each abutting against both ends of the mounting hole, characterized in that: The mounting bracket is also provided with a positioning sleeve in the mounting hole. The positioning sleeve is threaded with the metal induction sensor. The side wall of the positioning sleeve is provided with a positioning hole. The mounting bracket is provided with a through hole corresponding to the position of the positioning hole. The positioning pin is installed in the through hole and the positioning hole to position the positioning sleeve.

2. The clamp anti-backout support of claim 1, wherein: There are two positioning holes, and two corresponding through holes and positioning pins.

3. The clamp anti-backout support of claim 1, wherein: The locating pin is an elastic cylindrical pin, which is interference-fitted with the through hole and the locating hole.

4. The clamp retainer of claim 1, wherein: The positioning sleeve is made of copper.

5. The clamp retainer of claim 1, wherein: The positioning sleeve has a cylindrical structure, and the inner hole of the positioning sleeve is threaded to engage with the external thread of the metal sensing sensor.

6. The clamp retainer of claim 1, wherein: The positioning sleeve is clearance-fitted with the mounting hole of the mounting bracket.

Images