Noise reduction device of automatic spherical electrode cap grinding equipment

Abstract

The utility model relates to a noise reduction device for automatic spherical electrode cap grinding equipment, which belongs to the technical field of automobile and locomotive manufacturing and comprises a grinding equipment main body and a control box arranged on the upper portion of the grinding equipment main body, a first protective cover and a second protective cover are arranged on the front side of the control box, and sound insulation cotton is arranged on the opposite sides of inner cavities of the first protective cover and the second protective cover. A grinding assembly is arranged on the front side of the control box, and a noise reduction mechanism used for reducing noise of the grinding assembly is arranged on the front side of the control box. According to the noise reduction device of the automatic spherical electrode cap grinding equipment, in order to reduce noise generated in the grinding process, the thickness of the grinding pieces can be increased through the double-layer grinding pieces, the amplitude can be reduced, and sound insulation cotton is added in the grinding pieces to eliminate friction sound between the grinding pieces; therefore, the problems that in the prior art, the strength generated in the grinding process of a single grinding piece is insufficient, the coverage area of a supporting plate is small, the amplitude is too large during grinding, and noise is increased are solved.

Description

Technical Field

[0001] This utility model relates to the field of automobile and locomotive manufacturing technology, specifically to a noise reduction device for an automatic spherical electrode cap grinding equipment. Background Technology

[0002] In the automotive and locomotive manufacturing industries, resistance spot welding equipment is commonly used. The workpiece is pressed between two electrodes, and an electric current is applied. The resistance heat generated by the current flowing through the contact surface and adjacent areas of the workpiece heats it to a molten or plastic state, forming a metallic bond. However, with the increasing demand for lightweight automotive and locomotive bodies, and the replacement of steel plates with aluminum plates for welding, the lifespan of the previously used electrode caps has decreased by at least 70%, the frequency of re-grinding has increased, and problems such as protrusions or collapses in the weld joints on aluminum plates have emerged. Research has verified that conventional spherical electrode caps tend to squeeze aluminum parts during welding, and the molten aluminum adheres to the conical surface of the copper electrode cap. Conventional re-grinding... Grinding using a cutting method results in a large amount of chips, shortening the lifespan of the electrode cap. A new grinding method uses lapping to remove brittle intermetallic compounds from the electrode cap surface, such as Al2Cu and Al4Cu9, which have poor conductivity, produced during spot welding of aluminum alloys. This resurfaces the electrode cap with a spherical surface and interwoven texture, providing a slight roughness. This improves the contact resistance after the upper and lower electrode caps come into contact during resistance spot welding, enhances the welding performance of the spherical electrode cap, slows down the pitting corrosion rate of the electrode cap during continuous spot welding, reduces the frequency of electrode cap grinding, and increases its lifespan. The specific surface texture can also penetrate the oxide layer of aluminum parts during welding, further reducing the amount of material removed during each electrode cap grinding process.

[0003] However, in actual operation, the noise generated by the high-speed rotation of the diamond grinding disc and the continuous grinding with the electrode cap is relatively large, which makes the surrounding environment noisy. In order to further improve the noise generated by the grinding of the diamond grinding disc, this application proposes a noise reduction device for an automatic spherical electrode cap grinding equipment to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a noise reduction device for an automatic spherical electrode cap grinding equipment. This device reduces the noise generated by the friction between the electrode cap and the grinding disc during the grinding process, thereby reducing ambient noise and protecting the eardrum. It solves the problem of excessive noise generated by the high-speed rotation of the diamond grinding disc and the continuous grinding of the electrode cap, which in turn makes the surrounding environment noisy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a noise reduction device for an automatic spherical electrode cap grinding equipment, comprising a grinding equipment body and a control box disposed on its upper part, wherein the front side of the control box is provided with a first protective cover and a second protective cover, and the inner cavities of the first protective cover and the second protective cover are respectively provided with sound insulation cotton on opposite sides; the front side of the control box is provided with a grinding component; and the front side of the control box is provided with a noise reduction mechanism for the noise reduction grinding component.

[0006] The noise reduction mechanism includes a support set on the front side of the control box. The right side of the second protective cover is fixed with a mounting plate by bolts. Three guide posts are welded to the right side of the mounting plate, and a cover plate is welded to the right end of each of them. The same connecting piece slides on the outer side of the three guide posts.

[0007] The grinding assembly includes a servo motor located on the right side of the mounting plate, a grinding disc welded to the outside of the output shaft of the servo motor, and two strong springs fitted on the outside of each of the three guide pillars.

[0008] Furthermore, a pad is installed between the connector and the support to fill the gap, and the grinding disc is located between the first protective cover and the second protective cover.

[0009] Furthermore, a flange seat is provided on the left side of the servo motor, and a cross ball bearing is provided inside the flange seat and outside the output shaft of the servo motor.

[0010] Furthermore, the first protective cover and the second protective cover are fixedly connected by bolts.

[0011] Furthermore, the two high-strength springs located on the same axis are welded to the left and right sides of the connector, respectively.

[0012] Furthermore, the two high-strength springs located on the same axis are respectively welded to the opposite sides of the mounting plate and the three cover plates.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The noise reduction device of this automatic spherical electrode cap grinding equipment reduces noise generated during the grinding process. The double-layered grinding discs can increase the thickness of the grinding discs and reduce the amplitude. The sound insulation cotton added to the grinding discs eliminates the friction sound between the grinding discs. This solves the problem in the prior art that the strength of a single grinding disc is insufficient during the grinding process, and the support plate has a small coverage area, resulting in excessive amplitude and increased noise during grinding. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural view of the present invention;

[0016] Figure 2This is a three-dimensional view of the protective cover one and protective cover two of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the grinding component of this utility model;

[0018] Figure 4 This is a schematic diagram of the noise reduction mechanism of this utility model.

[0019] In the diagram: 1 Noise Reduction Mechanism, 100 Control Box, 101 Flange Seat, 102 Connector, 103 Support, 104 Guide Post, 107 Pad, 109 Mounting Plate, 110 Grinding Equipment Body, 111 Cover Plate, 301 Grinding Assembly, 302 Servo Motor, 303 High-Strength Spring, 304 Grinding Disc, 201 Protective Cover One, 202 Protective Cover Two. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 2 The noise reduction device for an automatic spherical electrode cap grinding equipment in this embodiment includes a grinding equipment body 110 and a control box 100 disposed on its upper part. The front side of the control box 100 is provided with a first protective cover 201 and a second protective cover 202, and the inner cavities of the first protective cover 201 and the second protective cover 202 are respectively provided with sound insulation cotton on opposite sides. The front side of the control box 100 is provided with a grinding component 301, and the front side of the control box 100 is provided with a noise reduction mechanism 1 for the noise reduction grinding component 301.

[0022] A pad 107 is installed between the connector 102 and the support 103 to fill the gap between them, and the first protective cover 201 and the second protective cover 202 are fixedly connected by bolts.

[0023] Understandably, when the electrode cap moves to the designated grinding position, the grinding disc 304 begins to grind the spherical electrode cap. The servo motor 302 outputs rotational force to make the grinding disc 304 rotate continuously, causing it to generate frictional motion on the spherical electrode cap. The diamond particles on the grinding disc 304 are used to grind the spherical electrode cap to achieve the standard roughness.

[0024] Please see Figure 3In this embodiment, the noise reduction mechanism 1 includes a support 103 located on the front side of the control box 100. The right side of the second protective cover 202 is fixed with a mounting plate 109 by bolts. Three guide posts 104 are welded to the right side of the mounting plate 109, and a cover plate 111 is welded to the right end of each of them. The same connector 102 slides on the outer side of the three guide posts 104.

[0025] Please see Figure 4 In this embodiment, the grinding assembly 301 includes a servo motor 302 disposed on the right side of the mounting plate 109. A grinding disc 304 is welded to the outside of the output shaft of the servo motor 302. The grinding disc 304 is composed of two diamond grinding discs with a diameter of 180*2.5mm. Sound insulation cotton is disposed between the two diamond grinding discs. Diamond particles are covered on the outside of the diamond grinding discs. Two strong springs 303 are sleeved on the outside of each of the three guide posts 104.

[0026] The grinding disc 304 is located between the first protective cover 201 and the second protective cover 202. Sound insulation cotton is added inside the first protective cover 201 and the second protective cover 202, and the contact area between the grinding disc 304 and the spherical electrode cap is increased, which can reduce the pressure generated during grinding and reduce grinding noise. A flange seat 101 is provided on the left side of the servo motor 302. A cross ball bearing is provided inside the flange seat 101 and outside the output shaft of the servo motor 302. Two strong springs 303 located on the same axis are welded to the left and right sides of the connector 102 respectively. The opposite sides of the two strong springs 303 located on the same axis are welded to the opposite side of the mounting plate 109 and the three cover plates 111 respectively.

[0027] Understandably, the protective covers 201 and 202 primarily protect against flying copper shavings during grinding, reduce grinding noise, and ensure personnel safety. The noise generated by the main body 110 of the grinding equipment during the grinding process can be absorbed by the sound insulation cotton, reducing grinding noise. Furthermore, the grinding disc 304 consists of two 180*2.5mm diameter diamond grinding discs, with sound insulation cotton placed between the two diamond grinding discs. The double-layered grinding disc 304 increases the thickness of the grinding disc 304 and reduces the amplitude. Adding sound insulation cotton to the grinding disc 304 eliminates the friction sound between the grinding discs 304 and the grinding disc 304, thereby solving the problem in the prior art where the strength of a single grinding disc 304 is insufficient during the grinding process, and the support plate has a small coverage area, resulting in excessive amplitude and increased noise during grinding.

[0028] All electrical components mentioned in this article are electrically connected to the main controller and power supply, and all electrical components mentioned are conventional and known devices. This application will not elaborate further. The main controller can be a conventional and known device such as a computer that performs control. The control circuit of the main controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so this utility model will not explain the control method and circuit connection in detail. At the same time, any parts of this utility model that are not described in detail are all common technologies known to those skilled in the art.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The working principle of the above embodiments is as follows:

[0031] When the electrode cap moves to the designated grinding position, the grinding disc 304 begins grinding the spherical electrode cap. The servo motor 302 outputs rotational force, causing the grinding disc 304 to rotate continuously, generating friction against the spherical electrode cap. The diamond particles on the grinding disc 304 grind the spherical electrode cap to achieve the standard roughness. During the grinding process, the spherical electrode cap and the diamond particles produce a harsh metallic friction sound. To reduce noise during grinding, sound insulation cotton is added inside the protective covers 201 and 202, and the contact area between the grinding disc 304 and the spherical electrode cap is increased. This reduces the pressure and noise generated during grinding. The rotation direction of the servo motor 302 is switched, and the tension of the strong spring 303... Mounting plate 109 is kept in the middle position. Protective cover 1 201 and protective cover 2 202 mainly protect against the flying copper shavings during grinding, reduce grinding noise, and protect personnel safety. The noise generated by the grinding equipment body 110 during the grinding process can be absorbed by sound insulation cotton, reducing grinding noise. The grinding disc 304 is composed of two diamond grinding discs with a diameter of 180*2.5mm, and sound insulation cotton is placed between the two diamond grinding discs. The double-layer grinding disc 304 can increase the thickness of the grinding disc 304 and reduce the amplitude. The sound insulation cotton added to the grinding disc 304 eliminates the friction sound between the grinding discs 304 and the grinding disc 304, thereby solving the problem in the prior art that the strength of a single grinding disc 304 is insufficient during the grinding process, and the support plate has a small coverage area, resulting in excessive amplitude and increased noise during grinding.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A noise reduction device for automatic spherical electrode cap grinding equipment, comprising a grinding equipment main body (110) and a control box (100) arranged on the upper part of the grinding equipment main body (110), characterized in that: The front side of the control box (100) is provided with a shield one (201) and a shield two (202), and the opposite sides of the inner cavities of the shield one (201) and the shield two (202) are provided with sound insulation cotton, the front side of the control box (100) is provided with a polishing assembly (301), and the front side of the control box (100) is provided with a noise reduction mechanism (1) for the noise reduction polishing assembly (301); The noise reduction mechanism (1) comprises a support (103) arranged on the front side of the control box (100), a mounting plate (109) fixedly connected to the right side of the shield two (202) through bolts, three guide columns (104) welded to the right side of the mounting plate (109), and cover plates (111) welded to the right ends of the three guide columns (104), and the same connecting piece (102) is arranged on the outer sides of the three guide columns (104). The polishing assembly (301) comprises a servo motor (302) arranged on the right side of the mounting plate (109), and a polishing disc (304) welded to the outer side of the output shaft of the servo motor (302), and two strong springs (303) sleeved on the outer sides of the three guide columns (104).

2. The noise reduction device of an automatic spherical electrode cap polishing apparatus according to claim 1, characterized in that: The connecting piece (102) and the support (103) are provided with a gasket (107) for filling the gap therebetween, and the polishing disc (304) is located between the shield one (201) and the shield two (202).

3. The noise reduction device of an automatic spherical electrode cap polishing apparatus according to claim 1, characterized in that: The left side of the servo motor (302) is provided with a flange seat (101), and the inside of the flange seat (101) and the outer side of the output shaft of the servo motor (302) are provided with a cross ball bearing.

4. The noise reduction device of an automatic spherical electrode cap polishing apparatus according to claim 1, characterized in that: The shield one (201) and the shield two (202) are connected through bolts.

5. The noise reduction device of an automatic spherical electrode cap polishing apparatus according to claim 1, characterized in that: The two strong springs (303) located on the same axis are respectively welded to the left and right sides of the connecting piece (102).

6. The noise reduction device of an automatic spherical electrode cap polishing apparatus according to claim 5, characterized in that: The opposite sides of the two strong springs (303) located on the same axis are respectively welded to the sides opposite to the mounting plate (109) and the three cover plates (111).

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