Automatic polishing apparatus

Abstract

The utility model discloses an automatic polishing equipment for polishing the weld in the small caliber cylinder. The automatic polishing equipment comprises a workpiece rotating mechanism and a polishing mechanism located at the front end of the workpiece rotating mechanism, the small caliber cylinder is fixed on the workpiece rotating mechanism, the polishing mechanism comprises an equipment stand column assembly and a small caliber grinding head assembly connected to the equipment stand column assembly, the small caliber grinding head assembly is provided with a grinding head assembly located at the longitudinal rear end, and is used for polishing the weld in the small caliber cylinder. The workpiece rotating mechanism comprises a longitudinally extending base, a work turntable and an auxiliary bracket located on the base, the rear end of the small caliber cylinder is clamped on the work turntable and the front end is supported on the auxiliary bracket, the work turntable moves or locks relative to the base in the longitudinal direction to adjust the contact between the grinding head assembly and the small caliber cylinder, and the work turntable drives the small caliber cylinder to rotate to realize automatic polishing of the weld; the efficiency and precision of polishing the weld in the small caliber cylinder are improved, thereby improving the production efficiency.

Description

Technical Field

[0001] This utility model relates to an automatic grinding device, and more particularly to a high-efficiency automatic grinding device for small-diameter cylinders. Background Technology

[0002] As industrial demands for product quality continue to rise, automatic grinding machines are becoming indispensable production tools. Their application is increasingly widespread in fields such as home appliances, automobile manufacturing, and aerospace, providing strong support and impetus for industrial development. Simultaneously, the emergence of automatic grinding machines has revolutionized traditional grinding processes, improving work efficiency and product quality while reducing manpower and safety risks.

[0003] However, for small-diameter cylinders with diameters ranging from 370mm to 1000mm, the large amount of grinding required for the weld seams inside the cylinders makes the existing technology slow in production and poses safety hazards, making it impossible to achieve consistent grinding results. Therefore, for production, improving production efficiency while ensuring the quality of weld seam grinding is of paramount importance.

[0004] Therefore, it is hoped that a new automatic polishing device can be proposed to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to provide an automatic grinding device for small-diameter cylinders, which has the functions of quick clamping and automatic grinding to complete the efficient grinding of weld seams.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic grinding device for grinding weld seams inside a small-diameter cylinder, wherein the diameter of the small-diameter cylinder is 370~1000mm. The automatic grinding device includes a longitudinally elongated workpiece rotating mechanism and a grinding mechanism located at the longitudinal front end of the workpiece rotating mechanism. The small-diameter cylinder is fixed to the workpiece rotating mechanism. The grinding mechanism includes a vertically extending equipment column assembly and a small-diameter grinding head assembly connected to the equipment column assembly. The small-diameter grinding head assembly extends longitudinally and has a grinding head component located at its longitudinal rear end. The grinding head component is used to grind the weld seams inside the small-diameter cylinder. The workpiece rotation mechanism includes a base extending longitudinally and a working turntable and an auxiliary bracket located on the base. The longitudinal rear end of the small-diameter cylinder is clamped on the working turntable and the longitudinal front end is supported on the auxiliary bracket. The working turntable can move or lock longitudinally relative to the base to adjust the contact between the grinding head assembly and the inner wall of the small-diameter cylinder. The working turntable drives the small-diameter cylinder to rotate to achieve automatic grinding of the weld seam inside the small-diameter cylinder.

[0007] In a preferred embodiment, the base has a longitudinally extending track, the workpiece rotation mechanism includes a traveling trolley located on the base and a drive assembly for driving the traveling trolley, the worktable is fixed on the traveling trolley, and the drive assembly drives the traveling trolley to move the worktable along the track, thereby adjusting the relative distance between the small-diameter cylinder and the small-diameter grinding head assembly.

[0008] In a preferred embodiment, the auxiliary bracket is supported on the traveling trolley and moves or is locked along the track to adjust the relative distance between the auxiliary bracket and the work turntable to accommodate small-diameter cylinders of different lengths.

[0009] In a preferred embodiment, the auxiliary bracket is provided with an auxiliary support roller that contacts the outer wall surface of the small-diameter cylinder. The auxiliary support roller rotates relative to the small-diameter cylinder when the small-diameter cylinder rotates, so that the front end of the small-diameter cylinder is always kept on the auxiliary bracket.

[0010] In a preferred embodiment, the turntable is provided with a self-centering chuck located at the longitudinal front end. The diameter of the chuck is not less than 500 mm. The chuck of the turntable is driven to rotate by a servo motor at a rotation speed of 0.01~1 rpm.

[0011] In a preferred embodiment, the automatic grinding equipment includes a control system electrically connected to the workpiece rotation mechanism and the grinding mechanism. The control system automates the operation of the workpiece rotation mechanism and the grinding mechanism, and immediately stops working and alarms when an abnormality occurs.

[0012] In a preferred embodiment, the automatic grinding equipment includes a camera system attached to the grinding head assembly, which can observe the weld and its surrounding area from at least two angles, left and right.

[0013] In a preferred embodiment, the small-diameter grinding head assembly is provided with a longitudinally extending columnar extension rod, the grinding head assembly is connected to the longitudinal rear end of the extension rod and is provided with a floating grinding head offset from the axis of the extension rod, the floating grinding head being radially offset to the outer side of the outer wall surface of the extension rod.

[0014] In a preferred embodiment, the grinding mechanism further includes a small-diameter grinding head mounting plate slide connected between the equipment column assembly and the small-diameter grinding head assembly, so that the small-diameter grinding head assembly can move vertically.

[0015] In a preferred embodiment, the grinding mechanism further includes a large-diameter grinding head assembly connected to the equipment column assembly. The large-diameter grinding head assembly is located below the small-diameter grinding head assembly and is used to grind the weld seam inside the large-diameter cylinder. The diameter of the large-diameter cylinder is greater than 1000 mm.

[0016] Compared with the prior art, this utility model has the following beneficial effects: The workpiece rotation mechanism includes a base extending longitudinally and a working turntable and an auxiliary bracket located on the base. The longitudinal rear end of the small-diameter cylinder is clamped on the working turntable, and the longitudinal front end is supported on the auxiliary bracket. The working turntable can move or lock longitudinally relative to the base to adjust the contact between the grinding head assembly and the inner wall of the small-diameter cylinder. The working turntable drives the small-diameter cylinder to rotate, thereby realizing automatic grinding of the weld seam inside the small-diameter cylinder. Therefore, the automatic grinding equipment greatly improves the efficiency and accuracy of grinding the weld seam inside the small-diameter cylinder, ensures the stability and consistency of grinding, and thus improves production efficiency. At the same time, the automatic grinding of the automatic grinding equipment also improves the safety and health protection of production personnel. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the automatic grinding equipment in a preferred embodiment of this utility model. Detailed Implementation

[0018] Please see Figure 1 As shown in the preferred embodiment of this utility model, an automatic grinding device is disclosed for grinding the weld seams inside a small-diameter cylindrical body 5, the diameter of which ranges from 370 to 1000 mm. The automatic grinding device is placed in a horizontal working plane and includes a longitudinally elongated workpiece rotating mechanism and a grinding mechanism located at the longitudinal front end of the workpiece rotating mechanism. The small-diameter cylindrical body 5 is fixed on the workpiece rotating mechanism. The workpiece rotating mechanism and the grinding mechanism are located in the same working plane, thereby ensuring high consistency during the automatic grinding process.

[0019] The grinding mechanism includes a vertically extending equipment column assembly 1, a small-diameter grinding head assembly 2 connected to the equipment column assembly 1, and a small-diameter grinding head mounting plate slide 14 connected between the equipment column assembly 1 and the small-diameter grinding head assembly 2. The longitudinal front end of the small-diameter grinding head assembly 2 is fixed on the small-diameter grinding head mounting plate slide 14, and the small-diameter grinding head mounting plate slide 14 moves vertically relative to the equipment column assembly 1, thereby driving the small-diameter grinding head assembly 2 to move vertically.

[0020] The small-diameter grinding head assembly 2 extends longitudinally, and the small-diameter cylindrical body 5 is fixed on the workpiece rotation mechanism and located at the longitudinal rear end of the small-diameter grinding head assembly 2. The small-diameter grinding head assembly 2 is provided with a longitudinally extending columnar extension rod and a grinding head assembly located at the longitudinal rear end. The grinding head assembly is used to grind the weld seam inside the small-diameter cylindrical body 5. The grinding head assembly is connected to the longitudinal rear end of the extension rod and is provided with a floating grinding head offset from the axis of the extension rod. The floating grinding head is radially offset to the outer side of the outer wall surface of the extension rod. The floating grinding head is an adaptive floating grinding head and floats radially to adaptively adjust its contact with the inner wall of the small-diameter cylindrical body 5.

[0021] In this embodiment, the grinding mechanism further includes a large-diameter grinding head assembly 3 connected to the equipment column assembly 1 and a large-diameter grinding head mounting plate slide 13 connected between the equipment column assembly 1 and the large-diameter grinding head assembly 3. The large-diameter grinding head assembly 3 is located below the small-diameter grinding head assembly 2 and is used to grind the weld seams inside the large-diameter cylinder 7. The diameter of the large-diameter cylinder 7 is greater than 1000mm, thereby realizing the application scenario of polishing multiple diameter workpieces with one device. The function of the large-diameter grinding head mounting plate slide 13 is the same as that of the small-diameter grinding head mounting plate slide 14. The grinding head assembly of the large-diameter grinding head assembly 3 is similar to that of the small-diameter grinding head assembly 2. Therefore, the large-diameter grinding head mounting plate slide 13 and the grinding head assembly of the large-diameter grinding head assembly 3 will not be described in detail here.

[0022] The automatic grinding equipment includes a dust collection system and a camera system attached to the grinding head assembly. The dust collection system collects dust inside the grinding cylinder during grinding, ensuring that dust contamination within the working area of ​​the cylinder meets national mandatory standards. This dust collection system prevents dust or debris generated during grinding from flowing out of the cylinder, thus avoiding adverse effects on the components inside the automatic grinding equipment. The camera system allows observation of the weld seam and its surrounding area from at least two angles (left and right) on the cylinder, providing visualization of the entire grinding process and a clear view of the finished state.

[0023] The workpiece rotation mechanism includes a longitudinally extending base 4, a traveling trolley 6 located on the base 4, a working turntable 8, an auxiliary bracket 9, and a drive assembly for driving the traveling trolley 6. The longitudinal rear end of the small-diameter cylinder 5 is clamped on the working turntable 8, and the longitudinal front end is supported on the auxiliary bracket 9. The base 4 has an upper base and a lower base stacked vertically, and has a linear track located on the upper and lower bases and extending longitudinally. The working turntable 8 is fixed on the traveling trolley 6, which is located on the track of the lower base. The drive assembly drives the traveling trolley 6 to move the working turntable 8 along the track or lock it at any position, thereby adjusting the relative distance between the small-diameter cylinder 5 and the small-diameter grinding head assembly 2.

[0024] Specifically, the rotary table 8 moves or locks longitudinally relative to the base 4 to adjust the contact between the grinding head assembly and the inner wall of the small-diameter cylinder 5. The rotary table 8 also drives the small-diameter cylinder 8 to rotate, thereby achieving automatic grinding of the weld seams inside the small-diameter cylinder 5. Furthermore, the rotary table 8 is equipped with a self-centering chuck with a large through-hole at its longitudinal front end. The diameter of the chuck is not less than 500mm. The chuck of the rotary table 8 is driven to rotate (forward and reverse) by an AC servo motor at a speed of 0.01~1 rpm. It features stepless speed regulation, smooth rotation, and a repeatability accuracy of not less than 0.5 minutes, greatly improving the efficiency of installation and fixing.

[0025] The auxiliary bracket 9 is located at the longitudinal front end of the work turntable 8, and is supported on the traveling trolley 6. It can move along the track of the upper base or be locked at any position to adjust the relative distance between the auxiliary bracket 9 and the work turntable 8, thus supporting small-diameter cylinders 5 of different lengths. Specifically, the auxiliary bracket 9 is equipped with auxiliary rollers that contact the outer wall surface of the small-diameter cylinder 5. These auxiliary rollers rotate relative to the small-diameter cylinder 5 as it rotates, ensuring that the longitudinal front end of the small-diameter cylinder 5 remains on the auxiliary bracket 9. The auxiliary rollers support cylinders of different lengths, enabling a single machine to polish cylinders of various lengths.

[0026] The automatic grinding equipment includes a control system 10 electrically connected to the workpiece rotation mechanism and the grinding mechanism. The control system 10 automates the operation of each mechanism within the workpiece rotation mechanism and the grinding mechanism, resulting in a highly efficient, stable, and consistent grinding process. Therefore, the control system 10 automates the entire operation process, allowing the grinding process to be stopped at any time, and immediately stopping and alarming in case of abnormalities. In this embodiment, the control system uses a Siemens CNC three-axis system.

[0027] The automatic grinding equipment also includes a standing platform 12 adjacent to the workpiece rotation mechanism and a guardrail 11 fixed to the standing platform 12. The standing platform 12 is horizontally aligned with the workpiece rotation mechanism. Since the overall structure of the workpiece rotation mechanism is relatively large, operators cannot fully observe the operating status of each mechanism on the workpiece rotation mechanism from the working plane. Therefore, the standing platform 12 allows operators to observe the various mechanisms on the workpiece rotation mechanism from a relatively downward perspective, avoiding any omissions. Simultaneously, the guardrail 11 extends upwards around the standing platform 12 to prevent accidental falls by operators positioned on the standing platform 12.

[0028] In this invention, the workpiece rotation mechanism includes a longitudinally extending base 4, a working turntable 8 located on the base 4, and an auxiliary bracket 9. The longitudinal rear end of the small-diameter cylinder 5 is clamped on the working turntable 8, and the longitudinal front end is supported on the auxiliary bracket 9. The working turntable 8 can move or lock longitudinally relative to the base 4 to adjust the contact between the grinding head assembly and the inner wall of the small-diameter cylinder 5. The working turntable 8 drives the small-diameter cylinder 5 to rotate, thereby achieving automatic grinding of the weld seam inside the small-diameter cylinder 5. Therefore, the automatic grinding equipment greatly improves the efficiency and accuracy of grinding the weld seam inside the small-diameter cylinder 5, ensuring the stability and consistency of grinding, thereby improving production efficiency. At the same time, the automatic grinding of the automatic grinding equipment also improves the safety and health of production personnel.

[0029] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. An automatic grinding device for grinding weld seams inside a small-diameter cylinder, the small-diameter cylinder having a diameter of 370-1000 mm, the automatic grinding device comprising a longitudinally elongated workpiece rotating mechanism and a grinding mechanism located at the longitudinal front end of the workpiece rotating mechanism, the small-diameter cylinder being fixed to the workpiece rotating mechanism, the grinding mechanism comprising a vertically extending equipment column assembly and a small-diameter grinding head assembly connected to the equipment column assembly, the small-diameter grinding head assembly extending longitudinally and having a grinding head assembly located at the longitudinal rear end, the grinding head assembly being used for grinding weld seams inside the small-diameter cylinder; characterized in that: The workpiece rotation mechanism includes a base extending longitudinally and a working turntable and an auxiliary bracket located on the base. The longitudinal rear end of the small-diameter cylinder is clamped on the working turntable and the longitudinal front end is supported on the auxiliary bracket. The working turntable can move or lock longitudinally relative to the base to adjust the contact between the grinding head assembly and the inner wall of the small-diameter cylinder. The working turntable drives the small-diameter cylinder to rotate to achieve automatic grinding of the weld seam inside the small-diameter cylinder.

2. The automatic polishing equipment according to claim 1, characterized in that: The base has a longitudinally extending track, and the workpiece rotation mechanism includes a traveling trolley located on the base and a drive assembly for driving the traveling trolley. The worktable is fixed on the traveling trolley, and the drive assembly drives the traveling trolley to move the worktable along the track, thereby adjusting the relative distance between the small-diameter cylinder and the small-diameter grinding head assembly.

3. The automatic polishing equipment according to claim 2, characterized in that: The auxiliary bracket is supported on the traveling trolley and moves or locks along the track to adjust the relative distance between the auxiliary bracket and the work turntable to accommodate small-diameter cylinders of different lengths.

4. The automatic polishing equipment according to claim 3, characterized in that: The auxiliary bracket is provided with auxiliary support rollers that contact the outer wall surface of the small-diameter cylinder. The auxiliary support rollers rotate relative to the small-diameter cylinder when the small-diameter cylinder rotates, so that the front end of the small-diameter cylinder is always kept on the auxiliary bracket.

5. The automatic polishing equipment according to claim 1, characterized in that: The turntable is equipped with a self-centering chuck located at the longitudinal front end. The diameter of the chuck is not less than 500mm. The chuck of the turntable is driven to rotate by a servo motor at a rotation speed of 0.01 to 1 rpm.

6. The automatic polishing equipment according to claim 1, characterized in that: The automatic grinding equipment includes a control system electrically connected to the workpiece rotation mechanism and the grinding mechanism. The control system automates the operation of the workpiece rotation mechanism and the grinding mechanism, and immediately stops working and alarms when an abnormality occurs.

7. The automatic polishing equipment according to claim 6, characterized in that: The automatic grinding equipment includes a camera system attached to the grinding head assembly, which can observe the weld and its surrounding area from at least two angles, left and right.

8. The automatic polishing equipment according to claim 1, characterized in that: The small-diameter grinding head assembly is provided with a longitudinally extending columnar extension rod. The grinding head assembly is connected to the longitudinal rear end of the extension rod and is provided with a floating grinding head offset from the axis of the extension rod. The floating grinding head is radially offset to the outside of the outer wall surface of the extension rod.

9. The automatic polishing equipment according to claim 1, characterized in that: The grinding mechanism also includes a small-diameter grinding head mounting plate slide connected between the equipment column assembly and the small-diameter grinding head assembly, so that the small-diameter grinding head assembly can move vertically.

10. The automatic polishing equipment according to claim 1, characterized in that: The grinding mechanism also includes a large-diameter grinding head assembly connected to the equipment column assembly. The large-diameter grinding head assembly is located below the small-diameter grinding head assembly and is used to grind the weld seams inside the large-diameter cylinder. The diameter of the large-diameter cylinder is greater than 1000mm.

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