Full-automatic grinding belt sander for U-shaped iron core end

Abstract

The utility model discloses a U-shaped iron core end full-automatic polishing belt sander which comprises a workbench arranged on a machine frame, a control table and a circulating abrasive belt are arranged on the machine frame, and the circulating abrasive belt is wound between abrasive belt driving mechanisms. The U-shaped iron core feeding mechanism and the U-shaped iron core discharging mechanism are arranged on the two sides of the circulating abrasive belt. The contact switch array can detect the grinding effect of the U-shaped iron core, the circulating abrasive belt is divided into a plurality of working areas, an optical sensor and / or a camera capable of detecting the use degree of the abrasive belt in the working area in real time are / is arranged at the corresponding position of each working area, and when the use degree exceeds a threshold value, the next working area is automatically replaced for grinding. The replacement frequency of the abrasive belt can be effectively reduced, and the utilization efficiency of the abrasive belt is improved. All the structures are tightly matched, and full automation of the grinding process can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of belt sander technology, and in particular to a fully automatic belt sander for grinding the ends of a U-shaped iron core. Background Technology

[0002] After U-shaped iron cores are manufactured, their ends often exhibit unevenness. This unevenness leads to poor contact between the core laminations, creating tiny air gaps, increasing magnetic reluctance, and reducing magnetic permeability. Belt sanders are commonly used for polishing U-shaped iron cores. The polishing principle involves a high-speed rotating sanding belt contacting the end face of the U-shaped iron core under pressure, generating relative friction, thus polishing the end face and making its surface smoother. While there are many types of belt sanders available, capable of processing a wide variety of products, they generally suffer from the following problems:

[0003] 1. The sanding belt needs frequent replacement, resulting in low utilization.

[0004] 2. During grinding, the grinding position changes back and forth. The initial grinding position of the abrasive belt is in contact with the ungrinded end face for a long time, causing the roughness of the abrasive belt in this area to decrease faster than that of other areas. The roughness of the entire abrasive belt is uneven, resulting in low grinding uniformity and grinding accuracy.

[0005] 3. The grinding process cannot be precisely controlled, resulting in over-grinding or incomplete grinding of the U-shaped iron core, which not only causes waste but also reduces grinding efficiency.

[0006] 4. Low level of automation, unable to integrate with other processing procedures on the production line;

[0007] 5. The debris generated during the grinding process cannot be collected in a timely manner, which affects the grinding accuracy and creates a poor working environment. Utility Model Content

[0008] In order to solve the above-mentioned technical problems, this utility model provides a fully automatic sanding belt machine for grinding the ends of U-shaped iron cores. It can effectively improve the overall utilization rate and grinding accuracy of the sanding belt, and can monitor the usage of the sanding belt in real time to replace the grinding area in a timely manner. In addition, it can realize automatic loading and unloading, with a high degree of automation, and can be connected with other processing procedures on the production line to improve grinding efficiency.

[0009] To achieve the above objectives, the technical solution of this utility model is to design a fully automatic sanding belt machine for grinding the ends of U-shaped iron cores. The machine includes a worktable mounted on a frame, a control console and a circulating sanding belt mounted on the frame, the circulating sanding belt being wrapped around a sanding belt drive mechanism, the worktable being located below the sanding surface of the circulating sanding belt, a transverse grinding drive mechanism being provided at one end of the frame, a vertical pressing mechanism for the U-shaped iron core, a transverse clamping mechanism for the U-shaped iron core being mounted on the transverse grinding drive mechanism, and a U-shaped iron core feeding mechanism and a feeding mechanism for the U-shaped iron core being mounted on both sides of the circulating sanding belt.

[0010] Furthermore, it also includes at least one array of contact switches, which is located at one end of the worktable near the transverse grinding drive mechanism and between the feeding mechanism and the circulating sanding belt. The contact switch array includes a horizontal detection top plate and a horizontal detection bottom plate, connected by a spherical bearing assembly. The spherical bearing assembly includes a shaft head fixed to the horizontal detection top plate and a spherical bearing disposed on the horizontal detection bottom plate. The shaft head and the spherical bearing are movably connected. The horizontal detection bottom plate is connected to the frame. A metal conductive strip is provided around the bottom surface of the horizontal detection top plate, and at least four contact switches are evenly distributed around the horizontal detection bottom plate. The positions of the contact switches are adapted to the metal conductive strip. The contact switches and the metal conductive strip are electrically connected to the control console. During testing, when the U-shaped iron core is not ground flat, the higher end of the U-shaped iron core will press against the horizontal detection top plate, causing it to tilt. The metal conductive strip on the tilted side will then touch the contact switches, and the contact switch array will be in a connected state. When the U-shaped iron core is ground flat, the contacts on the contact switch array do not contact the metal conductive strip, and the contact switch array is in the open state. The metal conductive strip is preferably a strip-shaped conductive strip made of conductive material, but it can also be a horizontal detection top plate made of metal itself serving as the conductive strip.

[0011] Furthermore, the contact switch array also includes at least one pitch adjustment screw, and threaded holes that mate with the pitch adjustment screw are provided on the frame and the horizontal detection base plate. The pitch adjustment screw can adjust the pitch of the contact switch array according to the U-shaped iron core with different end face distances, so as to better adapt it to the contact switch array.

[0012] Furthermore, the circulating sanding belt includes a driving roller and a driven roller supported on the frame. The driving roller is connected to a motor mounted on the frame via a transmission assembly, and the motor is electrically connected to the control console. The circulating sanding belt includes at least two working zones along its width. The width of each working zone is adapted to the width of the end of the U-shaped iron core to be ground. Optical sensors and / or cameras are installed at corresponding positions in each working zone at the other end of the frame, and are electrically connected to the control console. The optical sensors and / or cameras can capture images of the sanding belt in the corresponding working zone in real time and transmit them to the control console. The control console compares the transmitted images with pre-set comparison images in real time. When the comparison result reaches a set threshold, the transverse drive mechanism will drive the pressing mechanism to the next working zone for grinding. When the sanding belt in all working zones exceeds the threshold, the control console will issue an alarm to remind the worker to replace the sanding belt. Preferably, the transmission assembly is a belt drive.

[0013] Preferably, the transverse grinding drive mechanism is mounted on the frame and includes a transverse drive assembly that is driven and connected to a vertical slider, with the vertical slider slidingly engaged with a transverse guide rail on the frame. The preferred transverse drive assembly is a lead screw or a rack and pinion mechanism.

[0014] Preferably, the U-shaped iron core lateral clamping mechanism includes a U-shaped iron core positioning assembly and a U-shaped iron core clamping assembly, both mounted on the vertical slider. The U-shaped iron core clamping assembly is disposed on the U-shaped iron core positioning assembly. The U-shaped iron core positioning assembly includes a positioning drive component and a positioning bracket disposed on the positioning drive component. The U-shaped iron core vertical pressing mechanism includes a pressing drive component and an upper pressure plate disposed on the pressing drive component. The clamping assembly includes a front clamping plate and a clamping drive component, both disposed on the positioning bracket, and a rear clamping plate disposed on the clamping drive component. The front clamping plate and the rear clamping plate are located on both sides of the U-shaped iron core to be processed. Preferably, the positioning drive component, the pressing drive component, and the clamping drive component are hydraulic cylinders or pneumatic cylinders.

[0015] Preferably, the feeding mechanism includes a feeding trough mounted on the frame, a feeding vibrator mounted on the feeding trough, and a feeding port located at the end of the feeding trough.

[0016] Preferably, the feeding mechanism includes a feeding trough and a feeding drive component both mounted on the frame, a feeding push block connected to the feeding drive component, a stop block placed in the feeding trough, and a feeding port located at the end of the feeding trough.

[0017] Optionally, the system also includes a feeding arm, which comprises a limiting clamping assembly, a sensor, and a feeding pushing assembly, all mounted on one side of the frame. The feeding pushing assembly includes a feeding pushing drive and a feeding bracket connected thereto. The feeding bracket slides on the frame along a direction perpendicular to the movement of the U-shaped iron core within the feeding mechanism. A rotary drive is mounted on the feeding bracket, and the output end of the rotary drive is connected to a feeding clamping bracket. A clamping drive is mounted on the feeding clamping bracket, and the output end of the clamping drive is connected to a first feeding clamp. A second feeding clamp is correspondingly mounted on the feeding clamping bracket, opposite to the first feeding clamp. Preferably, the feeding pushing drive, rotary drive, and clamping drive are hydraulic cylinders or pneumatic cylinders.

[0018] Furthermore, it also includes a dust removal mechanism, located at the lower or upper part of the frame. The dust removal mechanism includes a vacuum cleaner and a suction nozzle. The nozzle opening is parallel to the axial direction of the circulating sanding belt surface, and the length of the suction nozzle is adapted to the width of the circulating sanding belt. The dust removal mechanism can promptly collect the grinding debris, reducing the impact of debris on the grinding process, improving grinding accuracy, and improving the working environment.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The reusable sanding belt is divided into multiple working areas, which can improve the utilization efficiency of the sanding belt and reduce the frequency of sanding belt replacement.

[0021] 2. Optical sensors and / or cameras at corresponding positions in each working area of ​​the reusable sanding belt can monitor the usage of the sanding belt in the corresponding working area in real time, so as to automatically change the sanding working area and remind the operator to change the sanding belt.

[0022] 3. The contact switch array can detect whether the end face of the U-shaped iron core is polished flat, and feed back to the control console through the on / off state of the contact switches, thereby controlling the entire polishing process.

[0023] 4. The close cooperation of the feeding and unloading mechanisms, as well as the vertical clamping mechanism, circulating sanding belt, horizontal clamping mechanism, contact switch array, optical sensor and / or camera, enables the full automation of the grinding process and can be connected with other production line processes, thereby improving production efficiency.

[0024] 5. The dust removal mechanism can collect the grinding debris in a timely manner, reducing the impact of debris on the grinding process, improving grinding accuracy, and improving the working environment. Attached Figure Description

[0025] Figure 1 This is a top view of the belt sander of this utility model without a feeding arm;

[0026] Figure 2 This is a top view of the belt sander of this utility model with a feeding arm;

[0027] Figure 3 This is the front view of the belt sander of this utility model;

[0028] Figure 4 This is a schematic diagram of the feeding arm of the belt sander of this utility model;

[0029] Figure 5 This is a schematic diagram of the belt sanding mechanism of the belt sander of this utility model;

[0030] Figure 6 This is a schematic diagram of the pressing mechanism of this utility model;

[0031] Figure 7 This is a schematic diagram of the feeding mechanism of the belt sander of this utility model;

[0032] Figure 8 This is a schematic diagram of the dust removal mechanism of the belt sander of this utility model;

[0033] Figure 9 This is a schematic diagram of the contact switch array of this utility model;

[0034] Figure 10 This is a schematic diagram of the horizontal detection base plate of this utility model;

[0035] Figure 11 This is a schematic diagram of the horizontal detection top plate of this utility model.

[0036] In the diagram: 1. Frame; 11. Workbench; 2. Control console; 3. Circulating sanding belt; 311. Working area; 312. Optical sensor and / or camera; 32. Drive roller; 33. Driven roller; 34. Motor; 35. Transmission assembly; 4. Lateral clamping mechanism; 41. Positioning assembly; 411. Positioning drive; 412. Positioning bracket; 42. Vertical pressing mechanism; 421. Pressing drive; 422. Upper pressure plate; 43. Clamping assembly; 431. Front clamping plate; 432. Clamping drive; 433. Rear clamping plate; 5. Lateral grinding drive mechanism; 51. Lateral drive assembly; 52. Lateral guide rail; 53. Vertical slider; 6. Feeding mechanism; 61. Feeding port; 62. Feeding trough; 63. Feeding vibrator; 7. Unloading mechanism; 71. Feeding port; 72. Feeding trough; 74. Feeding drive component; 75. Feeding push block; 76. Stop block; 8. Feeding arm; 81. Limit clamping assembly; 82. Sensor; 83. Feeding push assembly; 831. Feeding push drive component; 832. Feeding bracket; 833. Rotation drive component; 834. Feeding clamping bracket; 835. Clamping drive component; 836. First feeding clamping plate; 837. Second feeding clamping plate; 9. Contact switch array; 91. Horizontal detection top plate; 92. Horizontal detection bottom plate; 93. Spherical bearing assembly; 931. Shaft head; 932. Spherical bearing; 94. Metal conductive strip; 95. Contact switch; 96. Spacing adjustment screw; 97. Threaded hole; 10. Dust removal mechanism; 101. Vacuum cleaner; 102. Vacuum nozzle. Detailed Implementation

[0037] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0038] like Figures 1-6 As shown, this utility model is a fully automatic sanding belt machine for grinding the ends of U-shaped iron cores. It includes a worktable 11 mounted on a frame 1, a control console 2 and a circulating sanding belt 3 mounted on the frame 1. The circulating sanding belt 3 is wrapped around the sanding belt drive mechanism. The worktable 11 is located below the grinding working surface of the circulating sanding belt 3. A transverse grinding drive mechanism 5 is provided at one end of the frame 1, as well as a U-shaped iron core vertical pressing mechanism 42, a U-shaped iron core transverse clamping mechanism 4 mounted on the transverse grinding drive mechanism 5, and a U-shaped iron core feeding mechanism 6 and a feeding mechanism 7 mounted on both sides of the circulating sanding belt 3.

[0039] The circulating sanding belt 3 includes a sanding belt drive roller 32 and a driven roller 33 supported on the frame 1. The sanding belt drive roller 32 is connected to a motor 34 mounted on the frame 1 through a transmission assembly 35. Preferably, the transmission assembly 35 is a belt drive.

[0040] The transverse grinding drive mechanism 5 is mounted on the frame 1 and includes a transverse drive assembly 51. The transverse drive assembly 51 is drivenly connected to the vertical slider 53, and the vertical slider 53 is slidably engaged with the transverse guide rail 52 on the frame 1. Preferably, the transverse drive assembly 51 is a lead screw and nut threaded engagement or a gear and rack engagement.

[0041] The U-shaped iron core lateral clamping mechanism 4 includes a U-shaped iron core positioning assembly 41 and a U-shaped iron core clamping assembly 43, both mounted on the vertical slider 53. The U-shaped iron core clamping assembly 43 is mounted on the U-shaped iron core positioning assembly 41. The U-shaped iron core positioning assembly 41 includes a positioning drive member 411 and a positioning bracket 412 mounted on the positioning drive member 411. The U-shaped iron core vertical pressing mechanism 42 includes a pressing drive member 421 and an upper pressure plate 422 mounted on the pressing drive member 421. The clamping assembly 43 includes a front clamping plate 431 and a clamping drive member 432, both mounted on the positioning bracket 412, and a rear clamping plate 433 mounted on the clamping drive member 432. The front clamping plate 431 and the rear clamping plate 433 are located on both sides of the U-shaped iron core to be processed. Preferably, the positioning drive member 411, the pressing drive member 421, and the clamping drive member 432 are hydraulic cylinders or pneumatic cylinders.

[0042] The feeding mechanism 6 includes a feeding trough 62 mounted on the frame 1, a feeding vibrator 63 mounted on the feeding trough 62, and a feeding port 61 located at the end of the feeding trough 62.

[0043] The feeding mechanism 7 includes a feeding trough 72 and a feeding drive 74 both mounted on the frame 1, as well as a feeding push block 75 connected to the feeding drive 74. It also includes a stop block 76 placed in the feeding trough 72 and a feeding port 71 located at the end of the feeding trough 72.

[0044] The working principle is as follows: The worker or the previous process puts the U-shaped iron core to be ground into the feeding trough 62. Under the action of the feeding vibrator 63, the U-shaped iron core moves towards the feeding port 61. After reaching the feeding port 61, the horizontal drive component 51 of the horizontal grinding drive mechanism 5 starts and drives the vertical slider 53 to move towards the feeding port 61 within the horizontal guide rail 52. After reaching the feeding port 61, the positioning drive component 411 on the U-shaped iron core positioning component 41 starts and pushes the positioning bracket 412 to the U-shaped iron core. At this time, the front clamping plate 431 and the rear clamping plate 433 are located on both sides of the U-shaped iron core. Then, the clamping drive component 432 starts and drives the rear clamping plate 433 to move, and clamps the U-shaped iron core under the action of the front clamping plate 431. Then, the horizontal drive component 51 brings the U-shaped iron core horizontal clamping mechanism 4 back to the grinding area.

[0045] Upon reaching the grinding area, the clamping drive 421 of the U-shaped iron core vertical clamping mechanism 42 is activated and drives the upper pressure plate 422 to move downward and clamp the U-shaped iron core, so that its end face is tightly fitted with the circulating sanding belt 3.

[0046] Next, the control console 2 starts the motor 34, which drives the drive roller 32 to rotate through the transmission component 35, and then drives the circulating sand belt 3 to rotate, starting to grind the end face of the U-shaped iron core.

[0047] After grinding, the horizontal drive component 51 of the horizontal grinding drive mechanism 5 starts and drives the vertical slider 53 to move along the horizontal guide rail 52 to the feed port 71. After the U-shaped iron core is delivered to the feed port 71, the motor 34 stops working. The horizontal grinding drive mechanism 5 drives the vertical clamping mechanism 42 of the U-shaped iron core back to the initial position.

[0048] Next, the feeding drive 74 of the feeding mechanism 7 pushes the feeding push block 75 to the feeding port 71, and pushes the U-shaped iron core at the feeding port 71 out of the feeding port 71 along the feeding groove 72. The U-shaped iron core stops in the feeding groove 72 under the obstruction of the stop block 76, and the entire grinding process ends.

[0049] like Figure 1 , 3 Figure 4 also includes a feeding arm 8, which includes a limiting clamping assembly 81, a sensor 82, and a feeding pushing assembly 83, all disposed on one side of the frame 1. The feeding pushing assembly 83 includes a feeding pushing drive component 831 and a feeding bracket 832 connected thereto. The feeding bracket 832 slides on the frame 1 along a direction perpendicular to the movement direction of the U-shaped iron core inside the feeding mechanism 6. The feeding bracket 832 is provided with a rotary drive component 833, the output end of which is connected to a feeding clamping bracket 834. The feeding clamping bracket 834 is provided with a clamping drive component 835, the output end of which is connected to a first feeding clamping plate 836. A second feeding clamping plate 837, corresponding to the first feeding clamping plate 836, is provided on the feeding clamping bracket 834. Preferably, the feeding pushing drive component 831, the rotary drive component 833, and the clamping drive component 835 are hydraulic cylinders or pneumatic cylinders.

[0050] The working principle is as follows: The worker or the previous process puts the U-shaped iron core to be ground into the feeding trough 62. Under the action of the feeding vibrator 63, the U-shaped iron core moves towards the feeding port 61. When the sensor 82 senses that the U-shaped iron core has reached the feeding port 61, the limit clamping component 81 is activated and clamps another U-shaped iron core adjacent to the feeding port U-shaped iron core. Then, the rotation drive component 833 is activated, rotating the feeding clamping bracket 834, which is in a horizontal position, so that it faces the U-shaped iron core at the feeding port 61. Then, the U-shaped iron core is set on the feeding clamping bracket. The clamping drive 835 on 834 is activated, pushing the first feeding clamp 836. Under the combined action of the first feeding clamp 836 and the second feeding clamp 837, the U-shaped iron core is clamped. Then, the feeding push drive 831 of the feeding push assembly 83 on the frame 1 is activated, pushing the feeding bracket 832 to slide forward on the frame 1 along the direction perpendicular to the movement of the U-shaped iron core in the feeding mechanism 6 to the initial grinding position of the circulating sanding belt 3. After placing the U-shaped iron core in the initial grinding position, it returns to the initial state. The subsequent working process is the same as in the previous embodiment, and will not be repeated here. The difference between the two is that in the first embodiment, the transverse drive assembly 51 drives the transverse clamping mechanism 4 to clamp the U-shaped iron core from the feeding port 61 to the initial grinding area for grinding. In this embodiment, the feeding arm 8 clamps the U-shaped iron core from the feeding port 61 to the initial grinding area, and then the transverse clamping mechanism 4 clamps the U-shaped iron core for grinding.

[0051] like Figures 9-11 As shown, it also includes at least one set of contact switch array 9. The contact switch array 9 is disposed at one end of the worktable 11 near the transverse grinding drive mechanism 5 and between the feeding mechanism 7 and the circulating sand belt 3. The contact switch array 9 includes a horizontal detection top plate 91 and a horizontal detection bottom plate 92. The horizontal detection top plate 91 and the horizontal detection bottom plate 92 are connected by a joint bearing assembly 93. The joint bearing assembly 93 includes a shaft head 931 fixed on the horizontal detection top plate 91 and a joint bearing 932 disposed on the horizontal detection bottom plate 92. The shaft head 931 and the joint bearing 932 are movably connected. The horizontal detection bottom plate 92 is connected to the frame 1. A metal conductive strip 94 is disposed around the bottom surface of the horizontal detection top plate 91. At least four contact switches 95 are evenly distributed around the horizontal detection bottom plate 92. The positions of the contact switches 95 are adapted to the metal conductive strip 94. The contact switches 95 and the metal conductive strip 94 are electrically connected to the control console 2.

[0052] The contact switch array 9 also includes at least one pitch adjustment screw 96, and threaded holes 97 that cooperate with the pitch adjustment screw 96 are provided on the frame 1 and the horizontal detection base plate 92.

[0053] The working principle is as follows: When the grinding is about to be completed, the U-shaped iron core stops when it passes the contact switch array 9 during the process of going to the unloading. At this time, the end face of the U-shaped iron core is located on the horizontal detection top plate 91. The pressing drive 421 of the vertical pressing mechanism 42 of the U-shaped iron core is started and drives the upper pressure plate 422 to move downward to press the U-shaped iron core, so that its end face is close to the horizontal detection top plate 91. If the end of the U-shaped iron core has been ground flat, the horizontal detection top plate 91 will be in a horizontal state. At this time, the metal conductive strip 94 of the horizontal detection top plate 91 will not contact the contact switches 95 evenly distributed above the horizontal detection bottom plate 92. After the control console 2 receives the disconnection signal, it stops the grinding work. The pressing drive 421 of the vertical pressing mechanism 42 of the U-shaped iron core starts and drives the upper pressure plate 422 to move upward away from the horizontal detection top plate 91. Then the horizontal driving component 51 of the horizontal grinding drive mechanism 5 starts and drives the vertical slider 53 to move along the horizontal guide rail 52 to the lower feed port 71, and delivers the U-shaped iron core to the feed port 71. When the end of the U-shaped iron core is uneven, the shaft head 931 on the horizontal detection top plate 91 below it rotates with the spherical bearing 932 on the horizontal detection bottom plate 92, causing the horizontal detection top plate 91 to tilt. At this time, the metal conductive strip 94 of the horizontal detection top plate 91 will contact the contact switches 95 evenly distributed above the horizontal detection bottom plate 92 and transmit the connection signal back to the control console 2. After receiving the signal, the control console 2 starts the clamping drive 421 of the vertical clamping mechanism 42 of the U-shaped iron core and drives the upper pressure plate 422 to move upward away from the horizontal detection top plate 91. Then, the horizontal drive component 51 of the horizontal grinding drive mechanism 5 starts and drives the vertical slider 53 to move along the horizontal guide rail 52 to the grinding work area 311 and continues to execute the grinding process until the end face is detected to be flat when the process is passed again. Then, the U-shaped iron core is sent to the unloading port 71.

[0054] like Figure 1 , 2 As shown in Figure 5, the circulating sanding belt 3 includes at least two working areas 311 along the width direction. The width of each working area 311 of the circulating sanding belt 3 is adapted to the width of the end of the U-shaped iron core to be ground. An optical sensor and / or camera 312 is provided at the corresponding position of each working area 311 at the other end of the frame 1. The optical sensor and / or camera 312 is electrically connected to the control console 2.

[0055] The working principle is as follows: The optical sensor and / or camera 312 can capture images of the sanding belt in the corresponding work area 311 in real time and transmit them to the control console 2. The control console 2 will compare the transmitted images with the pre-set comparison images in real time. When the comparison result reaches the set threshold, the transverse grinding drive mechanism 5 will drive the pressing mechanism 4 to the next work area 311 for grinding. When the sanding belts in all work areas 311 exceed the threshold, the control console 2 will issue an alarm to remind the worker to replace the sanding belt. When the worker has just moved to the next work area 311, the loading arm 8 can directly send the U-shaped iron core to the current work area 311, or it can be sent to the initial starting position. Then, the transverse grinding drive mechanism 5 will drive the transverse clamping mechanism 4 to the current work area 311 for grinding.

[0056] like Figure 3 , 8 As shown, it also includes a dust removal mechanism 10, located at the lower or upper part of the frame 1. The dust removal mechanism 10 includes a vacuum cleaner 101 and a suction nozzle 102. The nozzle 102 is parallel to the axial direction of the surface of the circulating sanding belt 3, and the length of the suction nozzle 102 is adapted to the width of the circulating sanding belt 3. During operation, the circulating sanding belt 3 rotates continuously, and the suction nozzle 102 uses strong suction to draw the grinding debris and dust adhering to the circulating sanding belt 3 into the vacuum cleaner 101.

[0057] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fully automatic sanding belt machine for grinding the ends of U-shaped iron cores, comprising a worktable (11) mounted on a frame (1), a control console (2) and a circulating sanding belt (3) mounted on the frame (1), the circulating sanding belt (3) being wound around a sanding belt drive mechanism, characterized in that, The workbench (11) is located below the grinding surface of the circulating sand belt (3). A transverse grinding drive mechanism (5) is provided at one end of the frame (1), as well as a U-shaped iron core vertical pressing mechanism (42), a U-shaped iron core transverse clamping mechanism (4) and a U-shaped iron core feeding mechanism (6) and a feeding mechanism (7) of the U-shaped iron cores provided on both sides of the circulating sand belt (3).

2. The fully automatic grinding and sanding belt machine for the ends of a U-shaped iron core according to claim 1, characterized in that, It also includes at least one set of contact switch arrays (9), which are disposed on the worktable (11) near one end of the transverse grinding drive mechanism (5) and between the unloading mechanism (7) and the circulating sand belt (3). The contact switch array (9) includes a horizontal detection top plate (91) and a horizontal detection bottom plate (92), which are connected by a spherical bearing assembly (93). The spherical bearing assembly (93) includes a shaft head (9) fixed on the horizontal detection top plate (91). 31) and a spherical bearing (932) set on the horizontal detection base plate (92), the shaft head (931) is movably connected to the spherical bearing (932), the horizontal detection base plate (92) is connected to the frame (1), a metal conductive strip (94) is provided around the bottom surface of the horizontal detection top plate (91), and at least four contact switches (95) are evenly distributed around the horizontal detection base plate (92). The positions of the contact switches (95) are adapted to the metal conductive strip (94), and the contact switches (95) and the metal conductive strip (94) are electrically connected to the control console (2) respectively.

3. The fully automatic grinding and sanding belt machine for the ends of a U-shaped iron core according to claim 2, characterized in that, The contact switch array (9) also includes at least one pitch adjustment screw (96), and threaded holes (97) that cooperate with the pitch adjustment screw (96) are provided on the frame (1) and the horizontal detection base plate (92).

4. The fully automatic grinding and sanding belt machine for the ends of a U-shaped iron core according to claim 1, characterized in that, The circulating sanding belt (3) includes a sanding belt drive roller (32) and a driven roller (33) supported on the frame (1). The sanding belt drive roller (32) is connected to a motor (34) mounted on the frame (1) through a transmission assembly (35). The circulating sanding belt (3) includes at least two working areas (311) along the width direction. The width of each working area (311) of the circulating sanding belt (3) is adapted to the width of the end of the U-shaped iron core to be ground. An optical sensor and / or camera (312) is provided at the corresponding position of each working area (311) at the other end of the frame (1). The optical sensor and / or camera (312) is electrically connected to the control console (2).

5. The fully automatic grinding and sanding belt machine for the ends of a U-shaped iron core according to claim 1, characterized in that, The transverse grinding drive mechanism (5) is mounted on the frame (1) and includes a transverse drive assembly (51). The transverse drive assembly (51) is driven to connect with the vertical slider (53), and the vertical slider (53) slides in cooperation with the transverse guide rail (52) on the frame (1).

6. The fully automatic grinding and sanding belt machine for the ends of a U-shaped iron core according to claim 1, characterized in that, The U-shaped iron core lateral clamping mechanism (4) includes a U-shaped iron core positioning component (41) and a U-shaped iron core clamping component (43) both disposed on the vertical slider (53). The U-shaped iron core clamping component (43) is disposed on the U-shaped iron core positioning component (41). The U-shaped iron core positioning component (41) includes a positioning drive component (411) and a positioning bracket (412) disposed on the positioning drive component (411). The U-shaped iron core vertical pressing mechanism (42) includes a pressing drive component (421) and an upper pressure plate (422) disposed on the pressing drive component (421). The clamping component (43) includes a front clamping plate (431) and a clamping drive component (432) both disposed on the positioning bracket (412), and a rear clamping plate (433) disposed on the clamping drive component (432). The front clamping plate (431) and the rear clamping plate (433) are located on both sides of the U-shaped iron core to be processed.

7. The fully automatic grinding and sanding belt machine for the ends of a U-shaped iron core according to claim 1, characterized in that, The feeding mechanism (6) includes a feeding trough (62) set on the frame (1), a feeding vibrator (63) is provided on the feeding trough (62), and the feeding port (61) is located at the end of the feeding trough (62).

8. The fully automatic grinding and sanding belt machine for the ends of a U-shaped iron core according to claim 1, characterized in that, The feeding mechanism (7) includes a feeding trough (72) and a feeding drive (74) both mounted on the frame (1), a feeding push block (75) connected to the feeding drive (74), a stop block (76) placed in the feeding trough (72), and a feeding port (71) located at the end of the feeding trough (72).

9. The fully automatic grinding and sanding belt machine for the ends of a U-shaped iron core according to claim 1, characterized in that, It also includes a feeding arm (8), which includes a limiting clamping assembly (81), a sensor (82), and a feeding push assembly (83) all disposed on one side of the frame (1). The feeding push assembly (83) includes a feeding push drive (831) and a feeding bracket (832) connected thereto. The feeding bracket (832) slides on the frame (1) along the direction of movement of the U-shaped iron core perpendicular to the feeding mechanism (6). The feeding bracket (832) is provided with a rotary drive (833). The output end of the rotary drive (833) is connected to a feeding clamping bracket (834). The feeding clamping bracket (834) is provided with a clamping drive (835). The output end of the clamping drive (835) is connected to a first feeding clamp (836). The feeding clamping bracket (834) is provided with a second feeding clamp (837) corresponding to the first feeding clamp (836).

10. A fully automatic grinding and sanding belt machine for the ends of a U-shaped iron core according to claim 1, characterized in that, It also includes a dust removal mechanism (10), which is located at the lower or upper part of the frame (1). The dust removal mechanism (10) includes a vacuum cleaner (101) and a suction nozzle (102). The nozzle (102) is parallel to the axial direction of the surface of the circulating sand belt (3), and the length of the suction nozzle (102) is adapted to the width of the circulating sand belt (3).

Images