Three-station grinding machine

Abstract

The utility model relates to the technical field of polishers, in particular to a three-station polisher, which is convenient for quickly fixing sheet metal guard plates and frame structures with different sizes and specifications, improves the convenience and the stability, processes the sheet metal guard plates and the frame structures through three stations, does not need to repeatedly load and unload, and improves the polishing efficiency and the polishing quality. Comprising a control mechanism; the corner grinding device comprises a control mechanism and further comprises two limiting mechanisms, a pressing mechanism, a first position adjusting mechanism, an upper grinding mechanism, a second position feeding mechanism, a corner grinding mechanism, an auxiliary mechanism and a lower grinding mechanism, the limiting mechanisms are installed on the control mechanism, the pressing mechanism is installed on the control mechanism, and the first position adjusting mechanism is installed on the control mechanism. The upper grinding mechanism is installed on the first position adjusting mechanism, the second position feeding mechanism is installed on the control mechanism, and the corner grinding mechanism is installed on the second position feeding mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding machines, and in particular to a three-station grinding machine. Background Technology

[0002] A polishing machine is a mechanical device that uses the rotation of a rotor to drive tools such as brushes and grinding wheels to perform surface processing. It usually uses a motor or electric motor as a power source, and through the rotational motion of different tools, it makes the surface of the object being processed smooth and flat, achieving a high-quality surface treatment effect.

[0003] Existing grinding machines, such as the prior art with application number CN201820032121.8, include a support frame, a base plate, a first guide rail, a first motor, an output shaft of the first motor, a first slider, a second guide rail, a second motor, an output shaft of the second motor, a second slider, a grinding mechanism, and a worktable. The output shaft of the first motor drives the second guide rail to move along the first guide rail via the first slider. The output shaft of the second motor drives the grinding mechanism to move along the second guide rail via the second slider. During the transmission process between the first and second guide rails, the grinding mechanism changes position, thereby improving the grinding accuracy.

[0004] However, existing technologies require two machines or repeated loading and unloading to grind the multi-faceted welds of sheet metal panels and frame structures, which reduces grinding efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a three-station grinding machine that facilitates quick and easy fixing of sheet metal guards and frame structures of different sizes and specifications, improving convenience and stability. Furthermore, by processing sheet metal guards and frame structures in three stations, repeated loading and unloading are eliminated, thus improving grinding efficiency and quality.

[0006] This utility model discloses a three-station grinding machine, including a control mechanism; it also includes two sets of limiting mechanisms, a pressing mechanism, a first position adjustment mechanism, an upper grinding mechanism, a second position feeding mechanism, a corner grinding mechanism, an auxiliary mechanism, and a lower grinding mechanism. The limiting mechanisms are mounted on the control mechanism, the pressing mechanism is mounted on the control mechanism, the first position adjustment mechanism is mounted on the control mechanism, the upper grinding mechanism is mounted on the first position adjustment mechanism, the second position feeding mechanism is mounted on the control mechanism, the corner grinding mechanism is mounted on the second position feeding mechanism, the auxiliary mechanism is mounted inside the second position feeding mechanism, and the lower grinding mechanism is mounted inside the control mechanism. The control mechanism controls the entire machine to grind the upper and lower welds and side corner welds of the sheet metal guard plate and frame structure. The limiting mechanisms limit and fix the sheet metal guard plate and frame structure. The pressing mechanism presses and fixes the top of the sheet metal guard plate and frame structure. The first position adjustment mechanism adjusts the position of the upper grinding mechanism up, down, left, right, forward, and backward. The upper grinding mechanism grinds the top welds of the sheet metal guard plate and frame structure. The second position feeding mechanism... The feeding mechanism feeds the corner grinding mechanism to its position, and the corner grinding mechanism grinds the side corner welds of the sheet metal guard plate and frame structure. The control mechanism controls the overall grinding of the upper and lower welds and side corner welds of the sheet metal guard plate and frame structure. A limiting mechanism limits and fixes the sheet metal guard plate and frame structure, and a pressing mechanism presses and fixes the top of the sheet metal guard plate and frame structure to improve grinding stability. A first position adjustment mechanism adjusts the position of the upper grinding mechanism up, down, left, right, forward, and backward. The first grinding mechanism grinds the top welds of the sheet metal guard plate and frame structure. The second feeding mechanism feeds the corner grinding mechanism to the position of the corner grinding mechanism. The corner grinding mechanism grinds the side corner welds of the sheet metal guard plate and frame structure. The auxiliary mechanism assists the corner grinding mechanism in processing the corner welds, improving the quality of corner weld grinding. The lower grinding mechanism grinds the bottom welds of the sheet metal guard plate and frame structure, so that one machine can complete the grinding of the top, bottom, and side corner welds of the sheet metal guard plate and frame structure, improving grinding efficiency.

[0007] Preferably, the control mechanism includes a grinding machine body, a control box, and a dust hood. The control box is installed on the grinding machine body, and the dust hood is installed near the grinding position on the grinding machine body. The grinding process is controlled by the control box, and a dust collection device can be installed on the dust hood to treat the dust and fumes generated during the grinding process, thereby improving practicality.

[0008] Preferably, the limiting mechanism includes an adjusting frame, a sliding frame, a first adjusting groove, a limiting stop, and a second adjusting groove. Two sets of limiting mechanisms are symmetrically installed on the grinding machine body. The adjusting frame is installed on the grinding machine body, and the sliding frame is slidably installed on the grinding machine body. The adjusting frame is equipped with a lead screw, and the sliding frame is equipped with a threaded block that engages with the lead screw. The sliding frame has a first adjusting groove, and the limiting stop has a second adjusting groove. The limiting stop can be installed on the sliding frame. The limiting stop can be installed in the first adjusting groove using a fixing bolt, and the sliding frame can be fixed to the grinding machine body using a second fixing bolt. By rotating the lead screw, the sliding frame slides on the grinding machine body due to the threaded connection, adjusting the position of the limiting stop. The two limiting stops limit and fix the frame structure.

[0009] Preferably, the pressing mechanism includes two pressing cylinders and a pressing plate. The two pressing cylinders are installed inside the main body of the grinder, and the two ends of the pressing plate are installed on the top of the pressing cylinders. The pressing plate is located on top of two limit stops. By opening the pressing cylinders, the pressing plate is lowered to press and fix the top of the frame structure, thereby improving the stability of the grinding process.

[0010] Preferably, the first position adjustment mechanism includes a first upper and lower slide rail, an upper and lower sliding seat, a left and right slide rail, a left and right sliding seat, and four third adjustment grooves. The first upper and lower slide rail is installed on the main body of the grinding machine and is located above the limiting mechanism. The upper and lower sliding seat is slidably installed on the first upper and lower slide rail. The left and right slide rail is installed on the upper and lower sliding seat and slidably installed on the left and right slide rail. The left and right sliding seat is provided with four third adjustment grooves. Both the first upper and lower slide rail and the left and right slide rails are provided with drive screws and slide rail motors. The output end of the slide rail motor is connected to the drive screw. The lead screw is threadedly engaged with the upper and lower sliding seats and the left and right sliding seats respectively. The upper grinding mechanism is equipped with four mounting rods, which are slidably installed in four third adjustment grooves. By opening the slide rail motor, the drive screw is rotated, which in turn drives the upper and lower sliding seats to slide on the first upper and lower slide rails and the left and right sliding seats to slide on the left and right slide rails through the threaded connection. This allows for left-right and up-down adjustment of the grinding position of the upper grinding mechanism. When it is necessary to adjust the grinding position of the upper grinding mechanism forward and backward or the angle, the sliding rod of the upper grinding mechanism slides in the third adjustment groove and is then fixed with fixing bolts.

[0011] Preferably, the upper grinding mechanism includes a first drive box, a first drive shaft, a first drive motor, a first transmission shaft, a first tensioning cylinder, a spring seat, an elastic slide, and a first grinding shaft. The first drive box has four mounting rods. The first drive shaft is rotatably mounted inside the first drive box. The first drive motor is mounted on the outer wall of the first drive box, and its output end is connected to the first drive shaft. The first drive box contains a first slide rail and a first sliding frame. The first transmission shaft is rotatably mounted on the sliding frame. The first tensioning cylinder is mounted at the top of the first drive box, and its movable end is connected to the first sliding frame. The spring seat is mounted inside the first drive box. The elastic slide slides up and down on the inner wall of the first drive box via the slide rail. The first grinding shaft is rotatably mounted... Mounted on an elastic slide, the spring seat is connected to the elastic slide by a spring. The grinding belt is set on the first drive shaft, the first transmission shaft, and the first grinding shaft. By turning on the first drive motor, the first drive shaft is rotated, which in turn drives the first grinding shaft to rotate, thereby rotating the grinding belt to grind the weld seam on the top surface of the frame structure. The spring seat and the elastic slide are connected by a spring, which allows the belt to conform to the workpiece surface during grinding, resulting in a smoother and more rounded surface and improved grinding quality. Due to the elasticity of the spring, the position of the first transmission shaft is controlled by the first tension cylinder to ensure the tension of the grinding belt when the elastic slide slides up and down. The position of the first transmission shaft is controlled by the first tension cylinder to facilitate the replacement of the grinding belt, improving convenience.

[0012] Preferably, the second position feed mechanism includes a second drive box, a fixed seat, and a push cylinder. The second drive box is slidably mounted on the grinding machine body via a slide rail, the fixed seat is mounted on the grinding machine body, and the push cylinder is mounted on the outer wall of the second drive box. The movable end of the push cylinder is connected to the fixed seat. When the corner weld of the workpiece side wall is to be processed, the push cylinder is opened to drive the second drive box to slide on the grinding machine body, thereby causing the corner grinding mechanism to move to the grinding position.

[0013] Preferably, the corner grinding mechanism includes a second drive shaft, a second drive motor, an adjusting seat, a swing seat, and two second grinding shafts. The second drive shaft is rotatably mounted inside the second drive housing, the second drive motor is mounted at the bottom of the second drive housing, and the output end of the second drive motor is connected to the second drive shaft. The adjusting seat is mounted inside the second drive housing, the middle part of the swing seat is rotatably mounted on the adjusting seat, and the two second grinding shafts are rotatably mounted at both ends of the swing seat. Sanding belts are provided on the two second grinding shafts and the second drive shaft. By turning on the second drive motor to drive the second drive shaft to rotate, the sanding belt drives the second grinding shafts to rotate, so that the corner is located between the two second grinding shafts, and the corner weld of the side wall can be ground by the movement of the sanding belt.

[0014] Preferably, the auxiliary mechanism includes a turntable, an auxiliary motor, an eccentric connecting rod, a rotating connecting plate, a first connecting arm, and a second connecting arm. The turntable is rotatably mounted inside the second drive box. The auxiliary motor is mounted at the bottom of the second drive box, and its output end is connected to the auxiliary motor. One end of the eccentric connecting rod is eccentrically mounted on the turntable. One end of the rotating connecting plate is rotatably mounted on the second drive box, and the other end of the eccentric connecting rod is rotatably mounted at the bottom of the rotating connecting plate. One end of the first connecting arm and the second connecting arm are rotatably mounted at both ends of the rotating connecting plate, and the other ends of the first connecting arm and the second connecting arm are rotatably mounted at both ends of the swing seat. By turning on the auxiliary motor, the turntable is driven to rotate, which in turn pushes the rotating connecting plate to reciprocate around one end via the eccentric connecting rod. This, in turn, drives the swing seat to twist left and right on the adjusting seat via the first and second connecting arms, thereby enabling the sanding belt to better grind the corners.

[0015] Preferably, the lower grinding mechanism includes a third drive shaft, a third drive motor, a second adjusting sliding frame, a tensioning cylinder, a third auxiliary shaft, an upper and lower feed sliding frame, an upper and lower feed cylinder, and a lower grinding shaft. A partition is provided inside the grinding machine body. The third drive shaft is rotatably mounted on the partition. The third drive motor is mounted on the other side of the partition, and its output end is connected to the third drive shaft. The second adjusting sliding frame is slidably mounted on the partition via a slide rail. The tensioning cylinder is mounted on the partition, and its movable end is connected to the second adjusting sliding frame. The third auxiliary shaft is rotatably mounted on the second adjusting sliding frame, and is on the same side as the third drive shaft. The upper and lower feed sliding frame is slidably mounted on the partition. The upper and lower feed cylinders are mounted on the partition plate, and the movable end of the upper and lower feed cylinders is connected to the upper and lower feed sliding frame. The lower grinding shaft is rotatably mounted on the upper and lower feed sliding frame. Sanding belts are installed on the lower grinding shaft, the third drive shaft, and the third auxiliary shaft. By turning on the third drive motor, the third drive shaft is driven to rotate. Then, through the sanding belt drive and the assistance of the third auxiliary shaft, the lower grinding shaft is rotated. By turning on the upper and lower feed cylinders, the upper and lower feed sliding frame is driven to slide up and down on the partition plate. At the same time, by controlling the tension cylinder, the second adjusting sliding frame is driven to slide, thereby adjusting the position of the third auxiliary shaft to ensure the tension of the sanding belt. The upper and lower feed sliding frame completes the grinding feed of the bottom weld seam by sliding up and down.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: the control mechanism controls the overall grinding of the upper and lower welds and side corner welds of the sheet metal guard plate and frame structure; the limiting mechanism limits and fixes the sheet metal guard plate and frame structure; the pressing mechanism presses and fixes the top of the sheet metal guard plate and frame structure, improving the stability of grinding; the first position adjustment mechanism adjusts the position of the upper grinding mechanism up, down, left, right, forward and backward, and the upper grinding mechanism grinds the top welds of the sheet metal guard plate and frame structure; the second position feeding mechanism feeds the corner grinding mechanism, and the corner grinding mechanism grinds the side corner welds of the sheet metal guard plate and frame structure; the auxiliary mechanism assists the corner grinding mechanism in processing the corner welds, improving the quality of corner weld grinding; and the lower grinding mechanism grinds the bottom welds of the sheet metal guard plate and frame structure, so that one machine can complete the grinding of the upper and lower surfaces and side corner welds of the sheet metal guard plate and frame structure, improving grinding efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the first front view sectional isometric structure of this utility model;

[0020] Figure 4 This is a top view cross-sectional structural diagram of the present invention;

[0021] Figure 5 This is a first side view sectional isometric structural schematic diagram of this utility model;

[0022] Figure 6 This is a top-view cross-sectional axonometric structural schematic diagram of this utility model;

[0023] Figure 7 This is a second side view sectional isometric structural schematic diagram of this utility model;

[0024] Figure 8 This is a schematic diagram of the second front view sectional isometric structure of this utility model;

[0025] Figure 9 This is the utility model Figure 2 Enlarged structural diagram at point A;

[0026] Figure 10 This is the utility model Figure 6 Enlarged structural diagram at point B;

[0027] In the attached diagram, the following markings are used: 01, control mechanism; 11, grinding machine body; 12, control box; 13, dust cover; 02, limit mechanism; 21, adjusting frame; 22, sliding frame; 23, first adjusting groove; 24, limit stop; 25, second adjusting groove; 03, pressing mechanism; 31, pressing cylinder; 32, pressing plate; 04, first position adjusting mechanism; 41, first upper and lower sliding track; 42, upper and lower sliding seat; 43, left and right sliding track; 44, left and right sliding seat; 45, third adjusting groove; 05, upper grinding mechanism; 51, first drive box; 52, first drive shaft; 53, first drive motor; 54, first transmission shaft; 55, first tension cylinder; 56, spring seat; 57, elastic slide; 5 8. First grinding shaft; 06. Second position feed mechanism; 61. Second drive box; 62. Fixed seat; 63. Push cylinder; 07. Corner grinding mechanism; 71. Second drive shaft; 72. Second drive motor; 73. Adjusting seat; 74. Swing seat; 75. Second grinding shaft; 08. Auxiliary mechanism; 81. Turntable; 82. Auxiliary motor; 83. Eccentric connecting rod; 84. Rotating connecting plate; 85. First connecting arm; 86. Second connecting arm; 09. Lower grinding mechanism; 91. Third drive shaft; 92. Third drive motor; 93. Second adjusting sliding frame; 94. Tensioning cylinder; 95. Third auxiliary shaft; 96. Up and down feed sliding frame; 97. Up and down feed cylinder; 98. Lower grinding shaft. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0029] Example 1

[0030] like Figures 1 to 9 As shown, the three-station grinding machine includes a control mechanism 01, two sets of limiting mechanisms 02, a pressing mechanism 03, a first position adjusting mechanism 04, an upper grinding mechanism 05, a second position feeding mechanism 06, a corner grinding mechanism 07, an auxiliary mechanism 08, and a lower grinding mechanism 09. The limiting mechanism 02 is installed on the control mechanism 01, the pressing mechanism 03 is installed on the control mechanism 01, the first position adjusting mechanism 04 is installed on the control mechanism 01, the upper grinding mechanism 05 is installed on the first position adjusting mechanism 04, the second position feeding mechanism 06 is installed on the control mechanism 01, the corner grinding mechanism 07 is installed on the second position feeding mechanism 06, the auxiliary mechanism 08 is installed inside the second position feeding mechanism 06, and the lower grinding mechanism 09 is installed inside the control mechanism 01.

[0031] The control mechanism 01 controls the overall grinding of the upper and lower welds and side corner welds of the sheet metal guard plate and frame structure. The limiting mechanism 02 limits and fixes the sheet metal guard plate and frame structure. The pressing mechanism 03 presses and fixes the top of the sheet metal guard plate and frame structure. The first position adjustment mechanism 04 adjusts the position of the upper grinding mechanism 05 up, down, left, right and forward. The upper grinding mechanism 05 grinds the top welds of the sheet metal guard plate and frame structure. The second position feeding mechanism 06 feeds the corner grinding mechanism 07 to the position. The corner grinding mechanism 07 grinds the side corner welds of the sheet metal guard plate and frame structure.

[0032] The control mechanism 01 includes a grinding machine body 11, a control box 12, and a dust cover 13. The control box 12 is installed on the grinding machine body 11, and the dust cover 13 is installed near the grinding position on the grinding machine body 11.

[0033] The limiting mechanism 02 includes an adjusting frame 21, a sliding frame 22, a first adjusting groove 23, a limiting stop 24, and a second adjusting groove 25. The two sets of limiting mechanisms 02 are symmetrically installed on the grinding machine body 11. The adjusting frame 21 is installed on the grinding machine body 11, and the sliding frame 22 is slidably installed on the grinding machine body 11. The adjusting frame 21 is provided with a lead screw, and the sliding frame 22 is provided with a threaded block. The threaded block is threadedly engaged with the lead screw. The sliding frame 22 is provided with a first adjusting groove 23, and the limiting stop 24 is provided with a second adjusting groove 25. The limiting stop 24 can be installed on the sliding frame 22.

[0034] The pressing mechanism 03 includes two pressing cylinders 31 and a pressing plate 32. The two pressing cylinders 31 are installed inside the grinding machine body 11. The two ends of the pressing plate 32 are installed on the top of the pressing cylinders 31. The pressing plate 32 is located on top of the two limit stops 24.

[0035] The grinding process is controlled by the control box 12. A dust collection device can be installed on the dust cover 13 to treat the dust and fumes generated during the grinding process, improving practicality. The limit stop 24 can be installed on the first adjustment groove 23 by fixing bolts, and the sliding frame 22 can be fixed on the grinding machine body 11 by the second fixing bolts. By rotating the lead screw, the sliding frame 22 is driven to slide on the grinding machine body 11 due to the thread relationship, which can adjust the position of the limit stop 24. The frame structure is limited and fixed by the two limit stops 24. By opening the pressing cylinder 31, the pressing plate 32 is lowered to press and fix the top of the frame structure, improving the stability of the grinding process.

[0036] Example 2

[0037] like Figures 1 to 10As shown, the three-station grinding machine includes a control mechanism 01, two sets of limiting mechanisms 02, a pressing mechanism 03, a first position adjusting mechanism 04, an upper grinding mechanism 05, a second position feeding mechanism 06, a corner grinding mechanism 07, an auxiliary mechanism 08, and a lower grinding mechanism 09. The limiting mechanism 02 is installed on the control mechanism 01, the pressing mechanism 03 is installed on the control mechanism 01, the first position adjusting mechanism 04 is installed on the control mechanism 01, the upper grinding mechanism 05 is installed on the first position adjusting mechanism 04, the second position feeding mechanism 06 is installed on the control mechanism 01, the corner grinding mechanism 07 is installed on the second position feeding mechanism 06, the auxiliary mechanism 08 is installed inside the second position feeding mechanism 06, and the lower grinding mechanism 09 is installed inside the control mechanism 01.

[0038] The control mechanism 01 controls the overall grinding of the upper and lower welds and side corner welds of the sheet metal guard plate and frame structure. The limiting mechanism 02 limits and fixes the sheet metal guard plate and frame structure. The pressing mechanism 03 presses and fixes the top of the sheet metal guard plate and frame structure. The first position adjustment mechanism 04 adjusts the position of the upper grinding mechanism 05 up, down, left, right and forward. The upper grinding mechanism 05 grinds the top welds of the sheet metal guard plate and frame structure. The second position feeding mechanism 06 feeds the corner grinding mechanism 07 to the position. The corner grinding mechanism 07 grinds the side corner welds of the sheet metal guard plate and frame structure.

[0039] The control mechanism 01 includes a grinding machine body 11, a control box 12, and a dust cover 13. The control box 12 is installed on the grinding machine body 11, and the dust cover 13 is installed near the grinding position on the grinding machine body 11.

[0040] The first position adjustment mechanism 04 includes a first upper and lower slide rail 41, an upper and lower sliding seat 42, a left and right slide rail 43, a left and right sliding seat 44, and four third adjustment slide grooves 45. The first upper and lower slide rail 41 is installed on the main body 11 of the grinding machine and is located above the limiting mechanism 02. The upper and lower sliding seat 42 is slidably installed on the first upper and lower slide rail 41. The left and right slide rail 43 is installed on the upper and lower sliding seat 42. The left and right sliding seat 44 is slidably installed on the left and right slide rail 43. The left and right sliding seat 44 is provided with four third adjustment slide grooves 45. The first upper and lower slide rail 41 and the left and right slide rail 43 are each provided with a drive screw and a slide rail motor. The output end of the slide rail motor is connected to the drive screw. The two drive screws are threadedly engaged with the upper and lower sliding seat 42 and the left and right sliding seat 44, respectively. The upper grinding mechanism 05 is provided with four mounting rods, which are slidably installed in the four third adjustment slide grooves 45.

[0041] The upper grinding mechanism 05 includes a first drive box 51, a first drive shaft 52, a first drive motor 53, a first transmission shaft 54, a first tensioning cylinder 55, a spring seat 56, an elastic slide 57, and a first grinding shaft 58. The first drive box 51 is equipped with four mounting rods. The first drive shaft 52 is rotatably mounted inside the first drive box 51. The first drive motor 53 is mounted on the outer wall of the first drive box 51, and its output end is connected to the first drive shaft 52. The first drive box 51 contains a first slide rail and a first sliding frame. The first drive shaft 54 ​​is rotatably mounted on the sliding frame. The first tensioning cylinder 55 is mounted on the top of the first drive box 51. The movable end of the first tensioning cylinder 55 is connected to the first sliding frame. The spring seat 56 is mounted inside the first drive box 51. The elastic slide 57 is slidably mounted on the inner wall of the first drive box 51 through the slide rail. The first grinding shaft 58 is rotatably mounted on the elastic slide 57. The spring seat 56 and the elastic slide 57 are connected by a spring. The grinding sanding belt is set on the first drive shaft 52, the first drive shaft 54 ​​and the first grinding shaft 58.

[0042] The second position feed mechanism 06 includes a second drive box 61, a fixed seat 62, and a push cylinder 63. The second drive box 61 is slidably mounted on the grinding machine body 11 via a slide rail. The fixed seat 62 is mounted on the grinding machine body 11. The push cylinder 63 is mounted on the outer wall of the second drive box 61. The movable end of the push cylinder 63 is connected to the fixed seat 62.

[0043] The corner grinding mechanism 07 includes a second drive shaft 71, a second drive motor 72, an adjusting seat 73, a swing seat 74, and two second grinding shafts 75. The second drive shaft 71 is rotatably mounted inside the second drive box 61. The second drive motor 72 is mounted at the bottom of the second drive box 61, and the output end of the second drive motor 72 is connected to the second drive shaft 71. The adjusting seat 73 is mounted inside the second drive box 61. The middle part of the swing seat 74 is rotatably mounted on the adjusting seat 73. The two second grinding shafts 75 are rotatably mounted at both ends of the swing seat 74. Sanding belts are provided on the two second grinding shafts 75 and the second drive shaft 71.

[0044] The auxiliary mechanism 08 includes a turntable 81, an auxiliary motor 82, an eccentric connecting rod 83, a rotating connecting plate 84, a first connecting arm 85, and a second connecting arm 86. The turntable 81 is rotatably mounted inside the second drive box 61. The auxiliary motor 82 is mounted at the bottom of the second drive box 61, and the output end of the auxiliary motor 82 is connected to the auxiliary motor 82. One end of the eccentric connecting rod 83 is eccentrically and rotatably mounted on the turntable 81. One end of the rotating connecting plate 84 is rotatably mounted on the second drive box 61, and the other end of the eccentric connecting rod 83 is rotatably mounted at the bottom of the rotating connecting plate 84. One end of the first connecting arm 85 and the second connecting arm 86 are rotatably mounted at both ends of the rotating connecting plate 84, and the other ends of the first connecting arm 85 and the second connecting arm 86 are rotatably mounted at both ends of the swing seat 74.

[0045] The lower grinding mechanism 09 includes a third drive shaft 91, a third drive motor 92, a second adjusting sliding frame 93, a tensioning cylinder 94, a third auxiliary shaft 95, an upper and lower feed sliding frame 96, an upper and lower feed cylinder 97, and a lower grinding shaft 98. A partition is provided inside the grinding machine body 11. The third drive shaft 91 is rotatably mounted on the partition. The third drive motor 92 is mounted on the other side of the partition. The output end of the third drive motor 92 is connected to the third drive shaft 91. The second adjusting sliding frame 93 is slidably mounted on the partition via a slide rail. The tensioning cylinder 94 is mounted on... On the partition, the movable end of the tensioning cylinder 94 is connected to the second adjusting sliding frame 93. The third auxiliary shaft 95 is rotatably mounted on the second adjusting sliding frame 93. The third auxiliary shaft 95 is on the same side as the third drive shaft 91. The upper and lower feed sliding frame 96 is slidably mounted on the partition. The upper and lower feed cylinder 97 is mounted on the partition. The movable end of the upper and lower feed cylinder 97 is connected to the upper and lower feed sliding frame 96. The lower grinding shaft 98 is rotatably mounted on the upper and lower feed sliding frame 96. Sanding belts are installed on the lower grinding shaft 98, the third drive shaft 91, and the third auxiliary shaft 95.

[0046] By opening the slide rail motor to drive the drive screw to rotate, the upper and lower sliding seats 42 slide on the first upper and lower slide rails 41 and the left and right sliding seats 44 slide on the left and right slide rails 43 through the threaded connection, thereby adjusting the grinding position of the upper grinding mechanism 05 left and right and up and down. When it is necessary to adjust the grinding position and angle of the upper grinding mechanism 05, the sliding rod of the upper grinding mechanism 05 slides in the third adjusting slide groove 45, and then it can be fixed by fixing bolts. By opening the first drive motor 53 to drive the first drive shaft 52 to rotate, the first grinding mechanism 05 is driven by the first transmission shaft 54. The shaft 58 rotates, thereby driving the grinding belt to rotate and grind the weld seam on the top surface of the frame structure. A spring connects the spring seat 56 and the elastic slide 57, allowing them to conform to the workpiece surface during grinding, resulting in a smoother and more rounded finish, improving grinding quality. Due to the spring's elasticity, the elastic slide 57 slides up and down. The position of the first drive shaft 54 ​​is controlled by the first tension cylinder 55 to ensure the grinding belt is taut. Controlling the position of the first drive shaft 54 ​​via the first tension cylinder 55 also facilitates belt replacement, improving convenience. When processing the corner weld seam on the workpiece's side wall, the push air... Cylinder 63 drives the second drive box 61 to slide on the grinding machine body 11, thereby moving the corner grinding mechanism 07 to the grinding position. By turning on the second drive motor 72, the second drive shaft 71 is rotated, which in turn drives the second grinding shaft 75 to rotate through the sanding belt drive, so that the corner is located between the two second grinding shafts 75. The side wall corner weld can be ground by the movement of the sanding belt. By turning on the auxiliary motor 82, the turntable 81 is rotated, which in turn pushes the rotating connecting plate 84 to reciprocate around one end through the eccentric connecting rod 83. In turn, the first connecting arm 85 and the second connecting arm 86 drive the swing seat 7. 4. Twist left and right on the adjusting seat 73 to allow the sanding belt to better grind the corners. Turn on the third drive motor 92 to drive the third drive shaft 91 to rotate. Then, with the assistance of the sanding belt and the third auxiliary shaft 95, the lower grinding shaft 98 rotates. Turn on the up and down feed cylinder 97 to drive the up and down feed sliding frame 96 to slide up and down on the partition. At the same time, control the tension cylinder 94 to drive the second adjusting sliding frame 93 to slide, thereby adjusting the position of the third auxiliary shaft 95 to ensure the tension of the sanding belt. The up and down feed sliding frame 96 completes the grinding feed of the bottom weld seam by sliding up and down.

[0047] like Figures 1 to 10As shown, the three-station grinding machine of this utility model controls the grinding process through the control box 12 during operation. A dust collection device can be installed on the dust hood 13 to treat the dust and fumes generated during grinding, improving practicality. The limiting stop 24 can be installed on the first adjusting groove 23 using fixing bolts, and the sliding frame 22 can be fixed to the grinding machine body 11 using the second fixing bolts. By rotating the lead screw, the sliding frame 22 slides on the grinding machine body 11 due to the threaded connection, adjusting the position of the limiting stop 24. The two limiting stops 24 limit and fix the frame structure. Opening the pressing cylinder 31 lowers the pressing plate 32 to press and fix the top of the frame structure, improving the stability of the grinding process. The upper grinding mechanism 05 is adjusted left-right and up-down by opening the slide motor to drive the drive screw to rotate, which in turn drives the upper and lower sliding seats 42 to slide on the first upper and lower slide rails 41 and the left and right sliding seats 44 to slide on the left and right slide rails 43 through the threaded connection. When it is necessary to adjust the grinding position of the upper grinding mechanism 05 forward and backward and the angle, the sliding rod of the upper grinding mechanism 05 slides in the third adjusting slide groove 45 and is then fixed by fixing bolts. The first drive motor 53 is opened to drive the first drive shaft 52 to rotate, which in turn drives the first grinding shaft 58 to rotate through the first transmission shaft 54, which in turn drives the grinding sand belt to rotate to grind the weld seam on the top surface of the frame structure. The grinding is achieved through the spring seat 56 and the elastic slide 57. The spring connection allows the grinding mechanism to conform to the workpiece surface, resulting in a smoother and more rounded finish, thus improving grinding quality. The elasticity of the springs causes the elastic slide 57 to slide up and down, while the first tension cylinder 55 controls the position of the first drive shaft 54 ​​to ensure the sanding belt is taut. Controlling the position of the first drive shaft 54 ​​via the first tension cylinder 55 also facilitates belt replacement, improving convenience. When treating the corner weld of the workpiece sidewall, opening the push cylinder 63 causes the second drive box 61 to slide on the grinding machine body 11, moving the corner grinding mechanism 07 to the grinding position. Opening the second drive motor 72 rotates the second drive shaft 71, which in turn drives the second grinding shaft 75 via the sanding belt, positioning the corner within the two... Between the second grinding shafts 75, the side wall corner welds can be ground by the movement of the sanding belt. By turning on the auxiliary motor 82, the turntable 81 is rotated, which in turn pushes the rotating connecting plate 84 to rotate back and forth around one end through the eccentric connecting rod 83. This, in turn, drives the swing seat 74 to twist left and right on the adjusting seat 73 through the first connecting arm 85 and the second connecting arm 86, so that the sanding belt can better grind the corners. By turning on the third drive motor 92, the third drive shaft 91 is rotated. Then, with the assistance of the sanding belt drive and the third auxiliary shaft 95, the lower grinding shaft 98 is rotated. By turning on the up and down feed cylinder 97, the up and down feed sliding frame 96 slides up and down on the partition plate. At the same time, by controlling the tension cylinder 94, the second adjusting sliding frame 93 slides.The position of the third auxiliary shaft 95 is then adjusted to ensure the tightness of the sanding belt, and the grinding feed of the bottom weld seam is completed by the up-and-down sliding of the upper and lower feed slide frame 96.

[0048] The control box 12, pressing cylinder 31, first drive motor 53, first tensioning cylinder 55, pushing cylinder 63, second drive motor 72, auxiliary motor 82, third drive motor 92, tensioning cylinder 94, up and down feed cylinder 97, and slide rail motor of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0049] The main functions achieved by this utility model are: during the operation of the grinding machine, it is convenient to quickly fix sheet metal guard plates and frame structures of different sizes and specifications, improving convenience and stability. Furthermore, by processing sheet metal guard plates and frame structures in three stations, repeated loading and unloading are not required, thus improving grinding efficiency and quality.

[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A three-station grinding machine, including a control mechanism (01); characterized in that, It also includes two sets of limiting mechanisms (02), pressing mechanisms (03), first position adjusting mechanisms (04), upper grinding mechanisms (05), second position feeding mechanisms (06), corner grinding mechanisms (07), auxiliary mechanisms (08) and lower grinding mechanisms (09). The limiting mechanisms (02) are installed on the control mechanism (01), the pressing mechanisms (03) are installed on the control mechanism (01), the first position adjusting mechanisms (04) are installed on the control mechanism (01), the upper grinding mechanisms (05) are installed on the first position adjusting mechanisms (04), the second position feeding mechanisms (06) are installed on the control mechanism (01), the corner grinding mechanisms (07) are installed on the second position feeding mechanisms (06), the auxiliary mechanisms (08) are installed inside the second position feeding mechanisms (06), and the lower grinding mechanisms (09) are installed inside the control mechanism (01). The control mechanism (01) controls the overall grinding of the upper and lower welds and side corner welds of the sheet metal guard plate and frame structure. The limiting mechanism (02) limits and fixes the sheet metal guard plate and frame structure. The pressing mechanism (03) presses and fixes the top of the sheet metal guard plate and frame structure. The first position adjustment mechanism (04) adjusts the position of the upper grinding mechanism (05) up, down, left, right and forward. The upper grinding mechanism (05) grinds the top weld of the sheet metal guard plate and frame structure. The second position feeding mechanism (06) feeds the position of the corner grinding mechanism (07). The corner grinding mechanism (07) grinds the side corner welds of the sheet metal guard plate and frame structure.

2. The three-station grinding machine as described in claim 1, characterized in that, The control mechanism (01) includes a grinding machine body (11), a control box (12) and a dust cover (13). The control box (12) is installed on the grinding machine body (11), and the dust cover (13) is installed near the grinding position on the grinding machine body (11).

3. The three-station grinding machine as described in claim 2, characterized in that, The limiting mechanism (02) includes an adjusting frame (21), a sliding frame (22), a first adjusting groove (23), a limiting stop (24), and a second adjusting groove (25). The two sets of limiting mechanisms (02) are symmetrically installed on the main body (11) of the grinder. The adjusting frame (21) is installed on the main body (11) of the grinder, and the sliding frame (22) is slidably installed on the main body (11) of the grinder. The adjusting frame (21) is provided with a lead screw, and the sliding frame (22) is provided with a threaded block. The threaded block is threadedly engaged with the lead screw. The sliding frame (22) is provided with a first adjusting groove (23), and the limiting stop (24) is provided with a second adjusting groove (25). The limiting stop (24) can be installed on the sliding frame (22).

4. The three-station grinding machine as described in claim 3, characterized in that, The pressing mechanism (03) includes two pressing cylinders (31) and a pressing plate (32). The two pressing cylinders (31) are installed inside the main body (11) of the grinder. The two ends of the pressing plate (32) are installed on the top of the pressing cylinders (31). The pressing plate (32) is located on the top of the two limit stops (24).

5. The three-station grinding machine as described in claim 2, characterized in that, The first position adjustment mechanism (04) includes a first upper and lower slide rail (41), an upper and lower sliding seat (42), a left and right slide rail (43), a left and right sliding seat (44), and four third adjustment slide grooves (45). The first upper and lower slide rail (41) is installed on the grinding machine body (11) and is located above the limiting mechanism (02). The upper and lower sliding seat (42) is slidably installed on the first upper and lower slide rail (41). The left and right slide rails (43) are installed on the upper and lower sliding seat (42). 44) The left and right sliding mounts are installed on the left and right slide rails (43). The left and right sliding mounts (44) are provided with four third adjustment slide grooves (45). The first upper and lower slide rails (41) and the left and right slide rails (43) are provided with drive screws and slide rail motors. The output end of the slide rail motor is connected to the drive screw. The two drive screws are threadedly engaged with the upper and lower slide rails (42) and the left and right slide rails (44) respectively. The upper grinding mechanism (05) is provided with four mounting rods. The four mounting rods are slidably installed in the four third adjustment slide grooves (45).

6. The three-station grinding machine as described in claim 5, characterized in that, The upper grinding mechanism (05) includes a first drive box (51), a first drive shaft (52), a first drive motor (53), a first transmission shaft (54), a first tension cylinder (55), a spring seat (56), an elastic slide (57), and a first grinding shaft (58). The first drive box (51) is provided with four mounting rods. The first drive shaft (52) is rotatably mounted inside the first drive box (51). The first drive motor (53) is mounted on the outer wall of the first drive box (51). The output end of the first drive motor (53) is connected to the first drive shaft (52). The first drive box (51) is provided with a first slide and a first sliding rail. The frame consists of a first drive shaft (54) rotatably mounted on a sliding frame, a first tension cylinder (55) mounted on the top of a first drive box (51), the movable end of the first tension cylinder (55) connected to the first sliding frame, a spring seat (56) mounted inside the first drive box (51), an elastic slide (57) slidably mounted on the inner wall of the first drive box (51) via a slide rail, a first grinding shaft (58) rotatably mounted on the elastic slide (57), and a spring seat (56) and the elastic slide (57) connected by a spring. A grinding belt is set on the first drive shaft (52), the first drive shaft (54), and the first grinding shaft (58).

7. The three-station grinding machine as described in claim 2, characterized in that, The second position feed mechanism (06) includes a second drive box (61), a fixed seat (62), and a push cylinder (63). The second drive box (61) is slidably mounted on the main body (11) of the grinder via a slide rail. The fixed seat (62) is mounted on the main body (11) of the grinder. The push cylinder (63) is mounted on the outer wall of the second drive box (61). The movable end of the push cylinder (63) is connected to the fixed seat (62).

8. The three-station grinding machine as described in claim 7, characterized in that, The corner grinding mechanism (07) includes a second drive shaft (71), a second drive motor (72), an adjustment seat (73), a swing seat (74), and two second grinding shafts (75). The second drive shaft (71) is rotatably installed inside the second drive box (61). The second drive motor (72) is installed at the bottom of the second drive box (61). The output end of the second drive motor (72) is connected to the second drive shaft (71). The adjustment seat (73) is installed inside the second drive box (61). The middle part of the swing seat (74) is rotatably installed on the adjustment seat (73). The two second grinding shafts (75) are rotatably installed at both ends of the swing seat (74). Sanding belts are provided on the two second grinding shafts (75) and the second drive shaft (71).

9. The three-station grinding machine as described in claim 8, characterized in that, The auxiliary mechanism (08) includes a turntable (81), an auxiliary motor (82), an eccentric connecting rod (83), a rotating connecting plate (84), a first connecting arm (85), and a second connecting arm (86). The turntable (81) is rotatably mounted inside the second drive box (61). The auxiliary motor (82) is mounted at the bottom of the second drive box (61). The output end of the auxiliary motor (82) is connected to the auxiliary motor (82). One end of the eccentric connecting rod (83) is eccentrically mounted on the turntable (81). One end of the rotating connecting plate (84) is rotatably mounted on the second drive box (61). The other end of the eccentric connecting rod (83) is rotatably mounted at the bottom of the rotating connecting plate (84). One end of the first connecting arm (85) and the second connecting arm (86) are rotatably mounted at both ends of the rotating connecting plate (84), respectively. The other ends of the first connecting arm (85) and the second connecting arm (86) are rotatably mounted at both ends of the swing seat (74), respectively.

10. The three-station grinding machine as described in claim 2, characterized in that, The lower grinding mechanism (09) includes a third drive shaft (91), a third drive motor (92), a second adjusting sliding frame (93), a tensioning cylinder (94), a third auxiliary shaft (95), an upper and lower feed sliding frame (96), an upper and lower feed cylinder (97), and a lower grinding shaft (98). A partition is provided inside the main body (11) of the grinding machine. The third drive shaft (91) is rotatably mounted on the partition. The third drive motor (92) is mounted on the other side of the partition. The output end of the third drive motor (92) is connected to the third drive shaft (91). The second adjusting sliding frame (93) is slidably mounted on the partition via a slide rail. The tensioning cylinder (94) is installed... On the partition, the movable end of the tensioning cylinder (94) is connected to the second adjusting sliding frame (93), the third auxiliary shaft (95) is rotatably mounted on the second adjusting sliding frame (93), the third auxiliary shaft (95) is on the same side as the third drive shaft (91), the upper and lower feed sliding frame (96) is slidably mounted on the partition, the upper and lower feed cylinder (97) is mounted on the partition, the movable end of the upper and lower feed cylinder (97) is connected to the upper and lower feed sliding frame (96), the lower grinding shaft (98) is rotatably mounted on the upper and lower feed sliding frame (96), and sanding belts are installed on the lower grinding shaft (98), the third drive shaft (91) and the third auxiliary shaft (95).

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