A dual-station grinding machine for steel cylinder welds

Abstract

This utility model relates to the field of grinding technology, and in particular to a dual-station grinding machine for steel cylinder welds, including a machine body, a clamping assembly mounted on the machine body, a grinding assembly, and a dust collection assembly. The dust collection assembly of this utility model includes a dust collection structure, a dust collection chamber, an air source structure, a filter structure, and a pulse structure. The dust collection structure has a dust collection chamber and a dust collection port. The dust collection chamber is located below the dust collection chamber. The filter structure is a bag filter structure installed in the dust collection chamber. The pulse structure is located at the output end of the dust collection chamber. The dust collection chamber of this utility model has only one inflection point, and the pulse structure is also provided at this inflection point, so it is not easy to get clogged during dust collection.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and in particular to a dual-station grinding machine for steel cylinder welds. Background Technology

[0002] A steel cylinder is a metal container for storing liquids or gases. Currently, steel cylinders can be divided into welded steel cylinders and seamless steel cylinders due to different manufacturing processes. Generally, the manufacturing process and requirements for seamless steel cylinders are higher than those for welded steel cylinders. Therefore, seamless steel cylinders are more expensive than welded steel cylinders. Seamless steel cylinders are mainly used in some special fields (such as aerospace), while welded steel cylinders are more commonly used in various traditional fields. Currently, when manufacturing welded steel cylinders, steel plates are rolled into a cylindrical shape, and then longitudinal seams (also known as straight welds) are welded together. Then, the end caps are circumferentially welded to the cylinder body (also known as circumferential welds), thus forming a complete basic shape.

[0003] Nowadays, after the welded steel cylinders are formed, the weld seams need to be ground. Therefore, a grinding machine is needed to grind the steel cylinders. A dual-station grinding machine is one of the more common grinding equipment. It can grind two steel cylinders at the same time. In order to avoid the waste generated by grinding affecting the workshop environment, a dual-station grinding machine usually needs to be equipped with a dust collection device. However, when grinding the circumferential weld seam of the steel cylinder, the steel cylinder needs to be continuously rotated during the grinding process. Since the clamping structure of the dual-station grinding machine for grinding the circumferential weld seam needs to be driven by a motor assembly, the dust collection pipe on the body of the dual-station grinding machine needs to avoid the motor assembly. This results in many bends in the dust collection pipe. During dust collection, impurities are very easy to accumulate at the bends of the dust collection pipe. Over time, this can easily cause the dust collection pipe to become blocked, affecting the dust collection effect.

[0004] In conclusion, improvements to the vacuuming device are needed. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dual-station grinding machine for steel cylinder welds, which aims to solve the problems mentioned in the background technology.

[0006] The technical solution of this utility model is achieved as follows: a dual-station grinding machine for steel cylinder welds, comprising: a machine body;

[0007] The clamping assembly consists of a first clamping structure and a second clamping structure installed on the machine body and spaced apart. The first clamping structure and the second clamping structure can fix the two ends of the steel cylinder and control the rotation of the steel cylinder, respectively.

[0008] The polishing assembly comprises a first polishing structure and a second polishing structure mounted on the machine body, and also includes a dust collection assembly mounted on the machine body, the dust collection assembly comprising:

[0009] A dust-collecting structure is mounted on the body and located between the first clamping structure and the second clamping structure, and has a dust-collecting chamber;

[0010] The suction port consists of a first suction port and a second suction port spaced apart on the suction structure, with the first suction port and the second suction port facing the first grinding structure and the second grinding structure respectively.

[0011] The dust collection chamber is formed on the body and located below the suction chamber. The dust collection chamber has a dust discharge port that communicates with the suction chamber.

[0012] The air source structure is installed on the machine body and has an air extraction pipe that connects to the dust collection chamber;

[0013] A filter structure is installed inside the dust collection chamber and is used to filter the gas flowing from the dust outlet to the exhaust pipe.

[0014] The dust collection structure is also equipped with a pulse structure, which can periodically send pulsed airflow to the dust discharge port.

[0015] Preferably, the gas source structure includes:

[0016] The exhaust chamber is formed on the machine body;

[0017] An exhaust fan is installed on the main body and is used to exhaust gas from the exhaust chamber.

[0018] The machine body is also provided with at least one air extraction pipe connecting the exhaust chamber and the dust collection chamber.

[0019] Preferably, the exhaust fan is a centrifugal fan.

[0020] Preferably, the dust collection structure includes:

[0021] The outer casing is mounted on the main body and forms the aforementioned suction chamber;

[0022] The dust suction port is located on the outer wall of the casing.

[0023] Preferably, the filter structure includes:

[0024] A partition is fixedly connected inside the dust collection chamber, dividing the dust collection chamber into an upper chamber and a lower chamber;

[0025] Several mounting ports are located on the partition and are arranged longitudinally through the partition;

[0026] Dust collector bags are installed at each installation port;

[0027] The lower chamber is connected to the dust suction chamber through the dust outlet, and the upper chamber is connected to the exhaust chamber through the air extraction pipe.

[0028] By adopting the above technical solution:

[0029] This invention features a dust collection chamber located below the suction chamber. The filter structure within the dust collection chamber separates impurities from the gas and retains them within the chamber, reducing the movement of impurities and thus preventing blockage of the suction pipe.

[0030] Secondly, the dust suction structure of this utility model is the only component that avoids the clamping assembly. Therefore, the connection between the dust suction chamber and the dust discharge port is the only "bend" (also called the inflection point) in the process of impurity movement. This utility model is equipped with a pulse structure, which can send pulse airflow to the dust discharge port, which can prevent impurities from accumulating at the dust discharge port and thus prevent the dust discharge port from being blocked.

[0031] Preferably, the pulse structure includes:

[0032] The pulse body has one end inserted into the outer shell;

[0033] A pulse cavity is formed on the pulse body;

[0034] A spring cavity is formed on the pulse body and is spaced apart from the pulse cavity;

[0035] The piston body reciprocates within the pulse cavity, and one end of the piston shaft of the piston body passes through the spring cavity;

[0036] The limiting plate reciprocates within the spring cavity and is connected to the piston shaft;

[0037] A return spring is located between the limiting plate and the spring cavity;

[0038] The limiting plate is also fixedly connected to a drive rod with one end protruding from the pulse body and which can be controlled by the drive structure to move away from the piston body. The side wall of the pulse body is provided with an intake one-way valve, and one end of the pulse body is provided with an exhaust one-way valve.

[0039] Preferably, the driving structure includes:

[0040] The sector gear is rotatably mounted on the machine body and can be rotated by a motor;

[0041] A drive rack is mounted on the drive rod and can mesh with a sector gear.

[0042] By adopting the above technical solution:

[0043] The pulse structure of this invention can control the air intake of the pulse cavity by the meshing of the sector gear and the drive rack, and drive the pulse body to reset by the reset spring so that the pulse cavity ejects air, thereby realizing the intermittent pulse airflow in the direction of the dust discharge port. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0046] Figure 2 for Figure 1 A schematic diagram of the structure hidden behind the dust cover;

[0047] Figure 3 for Figure 2 A schematic diagram of the structure after concealing the polishing components;

[0048] Figure 4 for Figure 3 AA section view in the middle;

[0049] Figure 5 for Figure 4 BB section view in the middle;

[0050] Figure 6 for Figure 4 Enlarged view of part A in the image;

[0051] Figure 7 for Figure 5 Enlarged view of part B in the image;

[0052] Figure 8 This is a schematic diagram illustrating the engagement of the sector gear and the drive rack in a specific embodiment of this utility model. Detailed Implementation

[0053] 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.

[0054] like Figures 1-8As shown, this embodiment provides a dual-station grinding machine for steel cylinder welds, including: a machine body 10, a grinding chamber 10a recessed on the machine body, a dust cover 10b on the machine body 10, a material inlet on the dust cover 10b, through which workers can put steel cylinders into the grinding chamber, and a dust door 10c hinged at the material inlet. For easy observation, the dust door 10c is also provided with a transparent observation window 10d. For easy entry of gas from outside the machine body into the dust cover chamber, the dust cover is also provided with an air hole 10e.

[0055] The clamping assembly in this embodiment consists of a first clamping structure and a second clamping structure installed on the body 10 and spaced apart. The first clamping structure and the second clamping structure can fix the two ends of the steel cylinder and control the rotation of the steel cylinder, respectively.

[0056] In this embodiment, both the first and second clamping structures include a lower rotating disk 20. The lower rotating disk 20 is rotatably connected to the machine body 10 via a rotating shaft 21. A bearing is provided between the rotating shaft 21 and the machine body 10. The rotating shaft 21 is driven by a turntable motor 23 mounted on the machine body. An upper rotating disk 24 and a cylinder 25 are provided directly above each lower rotating disk 20. The upper rotating disk 24 is rotatably connected to the output end of the cylinder 25. When fixing the steel cylinder, the upper rotating disk 24 is lowered by a lifting cylinder and cooperates with the lower rotating disk 20 to clamp the steel cylinder. When the turntable motor controls the lower rotating disk 20 to rotate, the steel cylinder will be controlled to rotate.

[0057] In this embodiment, the machine body 10 is provided with a first equipment cavity 26 located below the lower rotating disk 20, the rotating disk motor 23 is installed in the first equipment cavity 26, and the machine body 10 is also provided with a first equipment door 27 that can open or close the first equipment cavity 26.

[0058] The grinding assembly in this embodiment consists of a first grinding structure and a second grinding structure mounted on the machine body. Both the first grinding structure and the second grinding structure include a grinding motor 30. A second equipment cavity 31 is formed on the machine body 10. Similarly, the machine body 10 is provided with a second equipment door 32 that can open or close the second equipment cavity 31. The machine body 10 is provided with an opening 33 that connects to the second equipment cavity 31. A first drive wheel 34 is provided inside the second equipment cavity 31. The first drive wheel 34 is controlled to rotate by the grinding motor 30. A second drive wheel 36 is rotatably connected to the machine body 10 by means of a support frame 35. A sanding belt 37 for grinding is connected between the first drive wheel 34 and the second drive wheel 36.

[0059] This embodiment also includes a dust collection component installed on the body 10, the dust collection component comprising:

[0060] The dust suction structure 4 is installed on the body and located between the first clamping structure and the second clamping structure, and has a dust suction chamber 40;

[0061] The suction port 41 is composed of a first suction port and a second suction port spaced apart on the suction structure. The first suction port and the second suction port face the first grinding structure and the second grinding structure, respectively. In this embodiment, the first suction port and the second suction port face the second drive wheel 36 of each grinding structure, respectively. More specifically, the first suction port and the second suction port face the grinding area of ​​the steel cylinder by the sanding belt 37, respectively. The suction chamber 40 in this embodiment is also provided with a partition 42, which is located between the first suction port and the second suction port, and the bottom inner walls of the first suction port and the second suction port are inclined towards the suction chamber.

[0062] The dust collection chamber 5 is formed on the body 10 and located below the dust suction chamber 40. The dust collection chamber 5 has a dust discharge port 44 that communicates with the dust suction chamber. The dust discharge port 44 is located on the dust suction structure.

[0063] The air source structure is installed on the body 10 and has an air extraction pipe 60 that is connected to the dust collection chamber 5.

[0064] A filter structure is installed in the dust collection chamber 2 and is used to filter the gas flowing from the dust discharge port 44 to the exhaust pipe 60.

[0065] The dust collection structure is also equipped with a pulse structure, which can periodically send pulsed airflow to the dust discharge port 44.

[0066] In this embodiment: the gas source structure includes:

[0067] An exhaust chamber 61 is formed on the body 10;

[0068] Exhaust fan 62b is installed on the body 10 and is used to exhaust gas from the exhaust chamber 61;

[0069] The exhaust pipe 60 connects the exhaust chamber 61 and the dust collection chamber 5.

[0070] In this embodiment: the exhaust fan is a centrifugal fan, specifically the air inlet of the centrifugal fan is connected to the exhaust chamber 61, and the air outlet 62a of the centrifugal fan is located on the body 10.

[0071] In this embodiment: the dust collection structure 4 includes:

[0072] The outer casing 400 is mounted on the body 10 and forms the suction chamber 40;

[0073] The dust suction port is located on the outer wall of the outer casing 400.

[0074] In this embodiment: the filtering structure includes:

[0075] The partition 62 is fixedly connected to the dust collection chamber 5 and divides the dust collection chamber 5 into an upper chamber 5a and a lower chamber 5b.

[0076] Several mounting ports are provided on the partition 62 and are arranged longitudinally through the partition 62;

[0077] Dust collector bags 63 are installed at each installation port;

[0078] The lower cavity 5b is connected to the dust suction cavity 40 through the dust discharge port, that is, the lower cavity 5b is connected to the dust suction cavity of the outer shell 400, and the upper cavity 5a is connected to the exhaust cavity 61 through the air extraction pipe 60.

[0079] In this embodiment, the body 10 is provided with a third equipment door 65, which can be used to clean the lower cavity 5b.

[0080] In this embodiment: the pulse structure includes:

[0081] The pulse body 70 is fixed to the body 10, with one end penetrating into the outer shell 400 and the other end of the pulse body 70 located in the first device cavity 26;

[0082] A pulse cavity 71 is formed on the pulse body 70;

[0083] Spring cavity 72 is formed on pulse body 70 and is spaced apart from pulse cavity 71;

[0084] The piston body 73 reciprocates within the pulse cavity 71, and one end of the piston shaft 73a of the piston body 73 passes through the spring cavity 72;

[0085] The limiting plate 74 reciprocates within the spring cavity 72 and is connected to the piston shaft 73a;

[0086] A reset spring 75 is located between the limiting plate 74 and the spring cavity 72;

[0087] The limiting plate 74 is also fixedly connected to a drive rod 76 with one end protruding from the pulse body 70 and capable of being controlled by the drive structure to move away from the piston body 73. The side wall of the pulse body 70 is provided with an intake one-way valve 77, and one end of the pulse body 70 is provided with an exhaust one-way valve 78.

[0088] In this embodiment, a closed chamber 79 is formed between the outer shell 400 and the body. The closed chamber 79 is separated from the dust collection chamber 5, but it is connected to the first equipment chamber 26 through the air inlet 79a. Several air inlets 27a are distributed on the first equipment door 27. The one-way air inlet valve 77 can introduce gas into the closed chamber 79.

[0089] In this embodiment, the driving structure includes:

[0090] The sector gear 80 is rotatably mounted on the machine body 10 via the transmission shaft 81 and can be controlled to rotate by the motor 82.

[0091] The drive rack 83 is mounted on the drive rod 76 and can mesh with the sector gear 80.

[0092] In this embodiment, the first device cavity 26 is provided with a motor base 26b, a power supply motor 82 is installed, and the motor 81 is located between the turntable motors 23.

[0093] In this embodiment, the body 10 is also provided with a control unit 9, which is used to control the clamping assembly, grinding assembly and dust collection assembly of this embodiment.

[0094] refer to Figures 1-8 The principle of this embodiment is:

[0095] During grinding, the dust door is opened and the cylinder is placed on the lower rotating plate. The upper rotating plate is lowered by the cylinder and the cylinder is held by the upper and lower rotating plates. When it is necessary to drive the cylinder to rotate, the pneumatic rotating plate motor can drive the lower rotating plate to rotate, thereby making the cylinder rotate.

[0096] As the gas cylinder rotates, the grinding motor controls the movement of the sanding belt, which grinds the outer wall of the cylinder. Simultaneously, a centrifugal fan is activated to remove the grinding debris. The dust extraction path is as follows:

[0097] Waste particles enter the dust collection chamber through the suction port and are discharged into the lower chamber of the dust collection chamber through the dust discharge port. After being filtered by the dust collector bag, the waste particles are collected in the lower chamber. Meanwhile, the airflow passes through the dust collector bag and enters the centrifugal fan through the exhaust pipe, and is then discharged to complete the dust extraction process.

[0098] During the dust extraction process, the motor controlling the sector gear is also driven. When the sector gear meshes with the drive rack, the control drive rod moves away from the piston body, creating a negative pressure in the pulse chamber and squeezing the return spring. The negative pressure in the pulse chamber draws gas into the pulse chamber through the intake check valve. When the sector gear separates from the drive rack, the return spring resets and controls the piston body to move closer to the exhaust check valve via the limit plate, discharging the gas in the pulse chamber through the exhaust check valve. The discharged gas corresponds to the dust discharge port, thus allowing impurities accumulated at the dust discharge port to enter and exit the dust collection chamber.

[0099] It is worth mentioning that, to ensure better dust blowing, the exhaust one-way valve can be directed towards the bottom inner wall of the dust outlet.

[0100] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-station grinding machine for steel cylinder welds, comprising: Body (10); The clamping assembly consists of a first clamping structure and a second clamping structure installed on the machine body and spaced apart. The first clamping structure and the second clamping structure can fix the two ends of the steel cylinder and control the rotation of the steel cylinder, respectively. The polishing assembly comprises a first polishing structure and a second polishing structure mounted on the body (10), characterized in that it further includes a dust collection assembly mounted on the body (10), the dust collection assembly comprising: The dust suction structure (4) is installed on the body (10) and located between the first clamping structure and the second clamping structure, and has a dust suction chamber (40). The suction port (41) is composed of a first suction port and a second suction port spaced apart on the suction structure, with the first suction port and the second suction port facing the first polishing structure and the second polishing structure respectively. The dust collection chamber (5) is formed on the body (10) and located below the suction chamber (40). The dust collection chamber (5) has a dust discharge port (44) that communicates with the suction chamber (40). The air source structure is installed on the body (10) and has an air extraction pipe (60) that is connected to the dust collection chamber (5). A filter structure is installed in the dust collection chamber (5) and is used to filter the gas flowing from the dust outlet (44) to the exhaust pipe (60); The dust collection structure is also equipped with a pulse structure, which can send pulse airflow to the dust discharge port (44) at intervals.

2. A double station grinder for welding seams of steel bottles according to claim 1, characterized in that: The gas source structure includes: An exhaust chamber (61) is formed on the body (10); An exhaust fan (62b) is installed on the body (10) and is used to exhaust the gas in the exhaust chamber (61); The machine body (10) is provided with at least an air extraction pipe (60) connecting the exhaust chamber (61) and the dust collection chamber (5).

3. A double station grinder for welding seams of steel bottles according to claim 2, characterized in that: The exhaust fan (62b) is a centrifugal fan.

4. A dual-station grinding machine for steel cylinder welds according to claim 2 or 3, characterized in that: The dust collection structure (4) includes: The outer casing (400) is mounted on the body (10) and forms the suction chamber (40). The suction port is located on the outer wall of the outer casing (400).

5. A dual-station grinding machine for steel cylinder welds according to claim 4, characterized in that: The filtering structure includes: A partition (62) is fixedly connected inside the dust collection chamber (5) and divides the dust collection chamber (5) into an upper chamber (5a) and a lower chamber (5b). Several mounting ports are provided on the partition (62) and are arranged longitudinally through the partition; Dust collector bags (63) are installed at each installation port; The lower chamber (5b) is connected to the dust suction chamber (40) through the dust discharge port (44), and the upper chamber (5a) is connected to the exhaust chamber (61) through the air extraction pipe (60).

6. A dual-station grinding machine for steel cylinder welds according to claim 4, characterized in that: The pulse structure includes: The pulse body (70) has one end inserted into the outer shell (400); A pulse cavity (71) is formed on the pulse body (70); A spring cavity (72) is formed on the pulse body (70) and is spaced apart from the pulse cavity (71); The piston body (73) reciprocates within the pulse cavity (71), and one end of the piston shaft (73a) of the piston body (73) passes through the spring cavity (72); The limiting plate (74) reciprocates within the spring cavity (72) and is connected to the piston shaft (73a); A reset spring (75) is located between the limiting plate (74) and the spring cavity (72); Among them, the limiting plate (74) is also fixedly connected to a drive rod (76) with one end protruding from the pulse body (70) and being able to be controlled by the drive structure to move away from the piston body (73). The side wall of the pulse body (70) is provided with an intake one-way valve (77), and one end of the pulse body (70) is provided with an exhaust one-way valve (78).

7. A dual-station grinding machine for steel cylinder welds according to claim 6, characterized in that: The driving structure includes: A sector gear (80) is rotatably mounted on the body (10) and can be controlled to rotate by a motor (82); A drive rack (83) is mounted on the drive rod (76) and can mesh with a sector gear (80).

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