Clamping tool of magnesium oxysulfate board grinding device

Abstract

The utility model discloses a clamping tool of a magnesium oxysulfate board polishing device, which relates to the technical field of magnesium oxysulfate board processing and comprises a base, supporting legs are fixedly mounted at the top of the base, a frame is fixedly mounted at the tops of the supporting legs, and conveying mechanisms are fixedly mounted at two ends of the rear side of the top of the frame. By adopting the structure, a magnesium oxysulfate plate is arranged at the top of the bottom driving roller during operation during use, the third motor is started to drive the synchronous wheel to rotate, and the two lead screws are driven by the synchronous belt to rotate to drive the sliding blocks to slide back and forth due to the opposite screwing directions of threads at the two ends of the lead screws, so that the driving roller moves back and forth to clamp and position the plate; the second motor is started to drive the driving roller to rotate to achieve transverse displacement of the plate, the grinding mechanism is matched to synchronously grind the top and the bottom of the plate, automatic feeding and discharging are achieved, manual operation is reduced, the production efficiency is improved, the production process is smoother and more efficient, and the comprehensive performance and competitiveness of equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the processing technical field of magnesium sulfate board, especially relates to a clamping tool of magnesium sulfate board polishing device. BACKGROUND

[0002] Magnesium sulfate board is a new type of inorganic building material, which is mainly made of magnesium oxide and magnesium sulfate as main raw materials, by adding certain modifier and filler, through a series of mixing, forming and curing process, the plate has many excellent properties, from the fire performance, it belongs to A-grade non-combustible material, and it performs well in building fire safety, can effectively prevent the spread of fire, in terms of strength, magnesium sulfate board has high strength and good toughness, can bear certain weight and external force impact, can maintain good stability in building structure maintenance and decoration application scenarios, it also has good water resistance, compared with ordinary plate, it will not easily deform and mildew in humid environment, which makes it also play a role in some humidity sensitive areas, such as bathroom, kitchen and other places, in addition, the sound insulation and heat insulation performance of magnesium sulfate board is also considerable, which can reduce external noise interference to a certain extent, and is helpful for indoor temperature regulation, it is a multifunctional material with wide application prospect in building field;

[0003] The existing magnesium sulfate board needs to be polished and ground on the surface when used for packaging and decoration, so that the surface of the magnesium sulfate board is more smooth and beautiful, but the existing polishing equipment needs to be polished by manpower, the polishing process is time-consuming and labor-intensive, and the polishing efficiency is low, so a magnesium sulfate board polishing device is needed;

[0004] The Chinese patent with publication number "CN211805552U" discloses a magnesium sulfate board polishing device, which comprises a placing table and a polishing structure, a placing groove is formed on the top surface of the placing table, and a top plate is horizontally installed in the placing groove, the polishing structure comprises a sliding groove plate and a sliding frame, the vertical cross-section shape of the sliding frame is U-shaped, the bottom of the sliding frame is provided with the sliding groove plate at both ends, the sliding groove plate is horizontally welded on the front and rear end surfaces of the placing table, a polishing roller is horizontally arranged in the sliding frame, the both ends of the polishing roller are rotatably connected to the both side end surfaces of the sliding frame through bearings, a motor is fixedly connected to the outer end surface of one side of the sliding frame, and the end shaft of the polishing roller is connected to the transmission shaft of the motor, the magnesium sulfate board can be polished, which facilitates the need for later processing and polishing, reduces the polishing time, improves the polishing efficiency and reduces the labor intensity;

[0005] Although the above-mentioned device can assist in polishing magnesium sulfate board processing operation to some extent in actual application, it has obvious limitations. In the polishing process, the device can only polish one side of the magnesium sulfate board. However, in the actual production and use of magnesium sulfate board, in order to ensure the uniformity of the surface quality and the overall performance, fine polishing is usually required on both sides of the plate. Since the device can only process one side at a time, it means that after polishing one side, the plate needs to be turned over manually or with the help of other means for polishing the other side. This method not only increases the complexity and tediousness of the operation, but also greatly reduces the overall polishing efficiency. Each time the plate is turned over, it may involve repositioning, adjusting equipment parameters and other steps, which not only wastes time, but also easily introduces errors, affecting the consistency of the polishing effect. Therefore, in order to improve the polishing efficiency and quality of magnesium sulfate board and meet the actual production needs, it is urgent to improve and optimize the device to more efficiently and conveniently polish both sides of the magnesium sulfate board and improve the efficiency and benefit of the entire production process. Practical new type content

[0006] In view of the problems mentioned in the background art, the purpose of the present application is to provide a clamping tool for magnesium sulfate board polishing device to solve the problem of low overall polishing efficiency caused by polishing only one side during polishing and polishing in the prior art.

[0007] The above technical purpose of the present application is achieved by the following technical scheme:

[0008] A clamping tool for magnesium sulfate board polishing device, comprising a base, a support leg fixedly installed on the top of the base, a frame fixedly installed on the top of the support leg, a conveying mechanism fixedly installed on the top of both ends of the frame, and a polishing mechanism fixedly installed on the top of the front side of the frame.

[0009] The polishing mechanism comprises a fixed frame fixedly installed on the front end of the frame, a fixed plate fixedly installed on the inner side of the fixed frame, a first air cylinder fixedly installed on the outer end of the fixed plate, and a polishing assembly fixedly installed on the output end of the first air cylinder.

[0010] As a preferred technical scheme, the polishing assembly comprises a concave seat fixedly installed on the bottom output end of the first air cylinder, a polishing roller rotatably connected to the inside of the concave seat, a first motor fixedly installed on the outer end of the concave seat, and an output end of the first motor fixedly connected to the front end of the concave seat and the polishing roller.

[0011] As a preferred technical scheme, the conveying mechanism comprises vertical rails, the vertical rails are fixedly installed at the top rear sides of the frame body, the bottom of the vertical rail is fixedly installed with a driving assembly, the inside of the vertical rail is rotationally connected with a lead screw, the two ends of the lead screw are oppositely threaded, the two ends of the lead screw are both threadedly connected with sliding blocks, the sliding blocks are slidingly connected to the two ends of the inside of the vertical rail, and the front surface of the sliding block is fixedly installed with a conveying assembly.

[0012] As a preferred technical scheme, the conveying assembly comprises a concave frame, the concave frame is fixedly installed on the front surface of the sliding block, the inside of the concave frame is rotationally connected with a driving roller, the front surface of one concave frame is fixedly installed with a second motor, and the output end of the second motor is fixedly connected with the front end of the driving roller.

[0013] As a preferred technical scheme, the driving assembly comprises a fixed disc and a side frame, the fixed disc is fixedly installed at the bottom of the vertical rail, the side frame is fixedly installed at the back lower end of one vertical rail, the bottom of the side frame is fixedly installed with a third motor, the bottom of the fixed disc is rotationally connected with synchronous wheels, the top of the synchronous wheel is fixedly connected with the bottom of the lead screw, and the synchronous wheels are drivingly connected through a synchronous belt.

[0014] As a preferred technical scheme, the inside cavities of the sliding block and the vertical rail are both provided with a convex shape in whole cross section, and the outer surface of the sliding block is fixedly connected with a wear-resistant gasket.

[0015] As a preferred technical scheme, the outside corners of the base and the outside corners of the frame are both provided with a circular arc shape, and the bottom of the base is fixedly installed with an anti-skid pad.

[0016] In summary, the present application mainly has the following beneficial effects:

[0017] Firstly, through the cooperation of the polishing mechanism and the conveying mechanism, the magnesium oxysulfate plate can be placed in the inside of the conveying mechanism during use, the conveying mechanism is started to convey, when the magnesium oxysulfate plate moves horizontally, two independent first air cylinders push the concave seat to make the polishing roller adhere to the plate surface, the first motor is started to drive the polishing roller to rotate to realize double-sided polishing, the processed plate is discharged from one side of the conveying mechanism, and the other side can be placed with the plate for processing, so that automatic continuous uninterrupted polishing is realized, the waiting and operation steps are reduced, the polishing efficiency is improved, and the large-scale production demand is met.

[0018] Second, the device is in operation during use to place the magnesium lanthana plate on the top of the bottom drive roller, start the third motor to drive the synchronous wheel to rotate, drive the two lead screws to rotate through the synchronous belt transmission, drive the sliding block to reciprocate due to the opposite rotation direction of the threads at both ends, and then drive the drive roller to reciprocate to clamp and position the plate, start the second motor to drive the drive roller to rotate to realize the transverse displacement of the plate, cooperate with the polishing mechanism to polish the top and bottom of the plate synchronously, realize automatic feeding and discharging, reduce manual operation, improve production efficiency, make the production process more smooth and efficient, improve the comprehensive performance and competitiveness of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall structure schematic diagram of the utility model;

[0020] Figure 2 is the rear view structure schematic diagram of the utility model;

[0021] Figure 3 is the front view structure schematic diagram of the utility model;

[0022] Figure 4 is the polishing mechanism structure schematic diagram of the utility model.

[0023] Significant: 1, base; 2, polishing mechanism; 21, fixed frame; 22, fixed plate; 23, first cylinder; 24, polishing assembly; 241, concave seat; 242, polishing roller; 243, first motor; 3, conveying mechanism; 31, vertical rail; 32, drive assembly; 321, fixed disc; 322, side frame; 323, third motor; 324, synchronous wheel; 325, synchronous belt; 33, lead screw; 34, sliding block; 35, conveying assembly; 351, concave frame; 352, drive roller; 353, second motor; 4, frame; 5, support leg. DETAILED DESCRIPTION

[0024] EMBODIMENT

[0025] Reference Figures 1 to 4 The clamping tool of the magnesium lanthana plate polishing device of the embodiment, including base 1, the top of base 1 is fixedly installed with support leg 5, the top of support leg 5 is fixedly installed with frame 4, the top of frame 4 is fixedly installed with conveying mechanism 3 at both ends of the top rear side, frame 4 is fixedly installed with polishing mechanism 2 at the top front side middle;

[0026] The polishing mechanism 2 comprises a fixed frame 21 fixedly installed at the front end of the middle part of the front face of the frame body 4, the inner side of the fixed frame 21 is fixedly installed with a fixed plate 22 at the upper end and the lower end, the outer end of the fixed plate 22 is fixedly installed with a first air cylinder 23, the output end of the first air cylinder 23 is fixedly installed with a polishing assembly 24 penetrating through the fixed plate 22, the base 1 cooperates with the supporting legs 5 to provide a stable supporting foundation for the whole device, so that the device will not shake during polishing, and the machining precision and safety are ensured, the setting of the frame body 4 not only plays a role in connecting and bearing various components, but also provides a certain protection for the internal mechanism, the conveying mechanism 3 is located at the top of the frame body 4 and at the two ends of the rear side, which facilitates the feeding and discharging of the magnesium oxysulfate board and realizes a continuous machining process, thereby improving the production efficiency, the fixed frame 21 of the polishing mechanism 2 is fixed at the front end of the middle part of the frame body 4, which is reasonable in position and facilitates cooperation with the conveying mechanism 3 to machine the plate, and the fixed plate 22 at the upper end and the lower end of the inner side of the fixed frame 21 provides a stable mounting position for the first air cylinder 23, so that the first air cylinder 23 can stably push the polishing assembly 24, through accurate control of the first air cylinder 23, the position of the polishing assembly 24 can be flexibly adjusted according to the thickness of the magnesium oxysulfate board and the actual machining requirement, thereby effectively polishing plate materials of different specifications and improving the versatility and adaptability of the device, and the overall design enables the clamping tool to efficiently and stably operate during the polishing and machining process of the magnesium oxysulfate board, thereby providing a strong guarantee for high-quality polishing work.

[0027] Reference Figures 1-4 The polishing assembly 24 comprises a concave seat 241 fixedly installed at the bottom output end of the first air cylinder 23, the inside of the concave seat 241 is rotatably connected with a polishing roller 242, the outer end of the concave seat 241 is fixedly installed with a first motor 243, the output end of the first motor 243 is fixedly connected penetrating through the front end of the concave seat 241 and the polishing roller 242, the concave seat 241 serves as an installation carrier of the polishing roller 242, which is stably connected with the output end of the first air cylinder 23 and can accurately receive the pushing force of the first air cylinder 23, so that the polishing roller 242 can accurately adhere to the surface of the magnesium oxysulfate board as needed, and such adjustability ensures good polishing effect under different working conditions and adapts to plate materials of different thicknesses or surface conditions, the polishing roller 242 is rotatably connected inside the concave seat 241 and is directly driven by the first motor 243, the power transmission is direct and efficient, which can ensure that the polishing roller 242 rotates at a stable speed and with sufficient torque, thereby uniformly and powerfully polishing the plate material and improving the quality and efficiency of polishing, and the output end of the first motor 243 is fixedly connected with the front end of the polishing roller 242, such a close connection reduces energy loss and error in the power transmission process, ensures the running accuracy and stability of the polishing roller 242, and makes the whole polishing process more reliable, thereby providing a strong guarantee for high-quality polishing and machining of the magnesium oxysulfate board.

[0028] ReferenceFigures 1-3 The conveying mechanism 3 comprises an upright rail 31 fixedly installed at the top rear ends of the frame body 4, the bottom of the upright rail 31 is fixedly installed with a driving assembly 32, the inside of the upright rail 31 is rotationally connected with a lead screw 33, the two ends of the lead screw 33 are oppositely threaded, the two ends of the lead screw 33 are both threadedly connected with a sliding block 34, the sliding block 34 is slidingly connected to the two ends of the inside of the upright rail 31, the front surface of the sliding block 34 is fixedly installed with a conveying assembly 35, the conveying assembly 35 comprises a concave rack 351 fixedly installed on the front surface of the sliding block 34, the inside of the concave rack 351 is rotationally connected with a driving roller 352, the front surface of one concave rack 351 is fixedly installed with a second motor 353, the output end of the second motor 353 is fixedly connected with the front end of the driving roller 352, the upright rail 31 is fixed at the top rear ends of the frame body 4, thereby providing a stable support structure for the entire conveying mechanism 3, ensuring that there is no shaking or displacement during conveying, and guaranteeing the accuracy and stability of conveying, the driving assembly 32 provides power for the rotation of the lead screw 33, the design that the two ends of the lead screw 33 are oppositely threaded is ingenious and practical, when the lead screw 33 rotates, the sliding blocks 34 at the two ends can simultaneously slide in opposite directions inside the upright rail 31, this bidirectional movement mode can realize rapid clamping and positioning of the magnesium oxysulfate plate, adapt to plates of different sizes, and improve the universality of the device, in the conveying assembly 35 on the front surface of the sliding block 34, the concave rack 351 provides a stable mounting position for the driving roller 352, the driving roller 352 is rotationally connected to the inside of the concave rack 351 and is directly driven by the second motor 353, the power transmission is efficient and direct, which can ensure that the driving roller 352 operates at a stable speed, thereby driving the magnesium oxysulfate plate to move horizontally stably, the second motor 353 on one concave rack 351 is fixedly connected with the front end of the driving roller 352, thereby guaranteeing the reliability and accuracy of power transmission, so that the plate can maintain uniform motion during conveying, better cooperate with the polishing mechanism 2, realize efficient and accurate polishing processing, and overall, the design of the conveying mechanism 3 improves the conveying efficiency and positioning accuracy of the magnesium oxysulfate plate during processing, thereby providing strong support for efficient operation of the entire polishing device.

[0029] Reference Figures 1-3The driving assembly 32 comprises a fixed disc 321 and a side frame 322, the fixed disc 321 is fixedly installed at the bottom of the vertical rail 31, the side frame 322 is fixedly installed at the back lower end of one vertical rail 31, the bottom of the side frame 322 is fixedly installed with a third motor 323, the bottom of the fixed disc 321 is rotatably connected with a synchronous wheel 324, the top of the synchronous wheel 324 is fixedly connected with the bottom of the lead screw 33, the synchronous wheels 324 are drivingly connected through a synchronous belt 325, the overall cross-sectional shape of the internal cavity of the sliding block 34 and the vertical rail 31 is designed as a convex letter, the outer surface of the sliding block 34 is fixedly connected with a wear-resistant gasket, the fixed disc 321 provides a stable installation basis for the synchronous wheel 324, ensures that the synchronous wheel 324 can reliably rotate and transmit power to the lead screw 33, the side frame 322 is used for fixing the third motor 323, so that the position is stable, and a power source is provided for the whole driving system, when the third motor 323 operates, the synchronous rotation of the two synchronous wheels 324 can be realized through the driving connection of the synchronous wheel 324 and the synchronous belt 325, and then the lead screw 33 is driven to rotate, this driving mode ensures the accuracy and stability of power transmission, so that the lead screws 33 at both ends can work synchronously and coordinately, and the movement of the sliding block 34 in the vertical rail 31 is stable, the cross-sectional shape of the internal cavity of the sliding block 34 and the vertical rail 31 is designed as a convex letter, this design makes the sliding block 34 not easy to separate from the vertical rail 31 during sliding, ensures the reliability and safety of the operation of the conveying mechanism 3, the wear-resistant gasket on the outer surface of the sliding block 34 can reduce the friction and wear between the sliding block 34 and the vertical rail 31, prolong the service life of the equipment, and ensure that the sliding block 34 can still smoothly slide in the vertical rail 31 during long-term use, maintain the high-precision operation of the conveying mechanism 3, and further improve the working efficiency and stability of the whole magnesium sulfate plate polishing device.

[0030] With reference to Figures 1-2 The external corners of the base 1 and the external corners of the frame are designed as circular arcs, and the bottom of the base 1 is fixedly installed with an anti-skid pad. The circular arc design can effectively avoid injuries caused by accidental collision with the corners when personnel operate or approach the equipment, thereby reducing potential safety risks. In particular, in a work environment where personnel frequently move around the equipment, this design can provide more friendly safety protection. In addition, from the perspective of aesthetics, the corners of the circular arc make the overall appearance of the equipment more smooth and round, thereby improving the visual aesthetics of the equipment. The anti-skid pad at the bottom of the base 1 also plays an important role. The anti-skid pad can increase the friction between the base 1 and the placement surface, thereby ensuring that the equipment will not slide and displace due to vibration or external force during operation, and maintaining the stability of the equipment. This is crucial for ensuring the precision of polishing processing, because stable operation of the equipment is the basis for achieving high-quality magnesium sulfate plate polishing. Even in the case of a smooth floor or under certain external force interference, the anti-skid pad can effectively prevent the equipment from shaking or displacing, thereby ensuring the smooth progress of the entire processing process and improving the reliability and working efficiency of the equipment.

[0031] Principle and advantages: in the design of the device, the grinding mechanism 2 and the conveying mechanism 3 are ingeniously matched with each other, so that the device can stably place the magnesium sulfate plate into the inner side of the conveying mechanism 3 during actual use, then start the conveying mechanism 3 to run, at this time the conveying mechanism 3 is like a precise carrier, orderly conveying the magnesium sulfate plate, in the process of transverse movement of the magnesium sulfate plate, by starting the first cylinder 23 to run, it is worth noting that the two first cylinders 23 here are independently operated, they can accurately push the concave seat 241 to move inward according to the actual situation, with the inward movement of the concave seat 241, in turn can make the grinding roller 242 closely adhere to the outer surface of the magnesium sulfate plate, then start the first motor 243, the power of the first motor 243 drives the grinding roller 242 in the inner side of the concave seat 241 to rotate at high speed, under the action of the rotation of the grinding roller 242, the magnesium sulfate plate can be fully and carefully polished on both sides, the magnesium sulfate plate after polishing will be smoothly discharged from one side of the conveying mechanism 3, and at this time the operator only needs to fill the magnesium sulfate plate from the other side of the conveying mechanism 3, which can immediately carry out the next processing operation, so it can be seen that the device realizes automatic continuous polishing process flow, greatly reduces the waiting time and operation steps in the processing process, further significantly improves the overall polishing efficiency, provides a strong guarantee for the convenient use of the device, and meets the demand of large-scale production and processing;

[0032] Through the transmission mechanism 3, the device can place the magnesium peroxide plate on the top of the driving roller 352 at the bottom during operation. Then, the third motor 323 is started to run, which serves as a power source to drive the synchronous wheel 324 to rotate. The synchronous belt 325 is connected through the synchronous wheel 324, which ensures stable power transmission. When the third motor 323 runs, the two synchronous wheels 324 and the two lead screws 33 inside the two upright rails 31 rotate at the same pace. It is worth noting that the thread directions of the two ends of the two lead screws 33 are opposite. This unique design allows the two sliders 34 to slide back and forth inside the upright rail 31 when the lead screw 33 rotates. The reciprocating sliding of the slider 34 can assist the driving roller 352 to reciprocate, which can cleverly clamp and position the magnesium peroxide plate on the driving roller 352, ensuring its stability during processing. At this time, the second motor 353 is started to run, which drives the driving roller 352 to rotate. The rotation of the driving roller 352 acts as a powerful pusher, driving the magnesium peroxide plate between the driving rollers 352 to move horizontally. In this process, the polishing mechanism 2 closely adheres to the outer surface of the magnesium peroxide plate, which can polish the top and bottom of the magnesium peroxide plate simultaneously. This synchronous polishing method not only improves the overall polishing efficiency but also realizes the automatic feeding and discharging function of the magnesium peroxide plate during polishing and polishing. This function greatly reduces the time and labor intensity of manual operation, improves the overall production efficiency of the equipment, makes the entire production process more smooth and efficient, and further enhances the comprehensive performance and market competitiveness of the equipment.

Claims

1. A clamping fixture for a magnesium oxide sulfide plate grinding device, comprising a base (1), characterized in that: The base (1) is fixedly installed with a support leg (5), the support leg (5) is fixedly installed with a frame (4), the frame (4) is fixedly installed with a conveying mechanism (3) at both ends of the rear side of the top, and the frame (4) is fixedly installed with a grinding mechanism (2) in the middle of the front side of the top. The polishing mechanism (2) includes a fixing frame (21), which is fixedly installed on the front front center of the frame (4). Fixing plates (22) are fixedly installed on both the upper and lower ends of the inner side of the fixing frame (21). A first cylinder (23) is fixedly installed on the outer end of the fixing plate (22). The output end of the first cylinder (23) is fixedly installed through the fixing plate (22) with a polishing component (24).

2. The clamping fixture for a magnesium oxysulfate plate grinding device according to claim 1, characterized in that: The grinding assembly (24) includes a concave seat (241), which is fixedly installed at the bottom output end of the first cylinder (23). A grinding roller (242) is rotatably connected inside the concave seat (241), and a first motor (243) is fixedly installed at the outer end of the concave seat (241). The output end of the first motor (243) passes through the concave seat (241) and is fixedly connected to the front end of the grinding roller (242).

3. The clamping fixture for a magnesium oxysulfate plate grinding device according to claim 1, characterized in that: The conveying mechanism (3) includes a vertical rail (31), which is fixedly installed at both ends of the top rear side of the frame (4). A drive assembly (32) is fixedly installed at the bottom of the vertical rail (31). A lead screw (33) is rotatably connected inside the vertical rail (31). The two ends of the lead screw (33) have opposite thread directions. Both ends of the lead screw (33) are threadedly connected to sliders (34). The sliders (34) are slidably connected to the two ends inside the vertical rail (31). A conveying assembly (35) is fixedly installed on the front of the sliders (34).

4. The clamping fixture for a magnesium oxysulfate plate grinding device according to claim 3, characterized in that: The conveying assembly (35) includes a concave frame (351), which is fixedly installed on the front side of the slider (34). A drive roller (352) is rotatably connected to the inner side of the concave frame (351). A second motor (353) is fixedly installed on the front side of one concave frame (351), and the output end of the second motor (353) is fixedly connected to the front end of the drive roller (352).

5. The clamping fixture for a magnesium oxysulfate plate grinding device according to claim 4, characterized in that: The drive assembly (32) includes a fixed plate (321) and a side frame (322). The fixed plate (321) is fixedly installed at the bottom of the vertical rail (31), and the side frame (322) is fixedly installed at the lower back of one of the vertical rails (31). A third motor (323) is fixedly installed at the bottom of the side frame (322). The bottom of each fixed plate (321) is rotatably connected to a synchronous pulley (324). The top of the synchronous pulley (324) is fixedly connected to the bottom of the lead screw (33), and the synchronous pulleys (324) are connected by a synchronous belt (325).

6. The clamping fixture for a magnesium oxysulfide plate grinding device according to claim 5, characterized in that: The internal cavity cross-sectional shape of the slider (34) and the vertical rail (31) is set to a convex shape, and a wear-resistant pad is fixedly connected to the outer surface of the slider (34).

7. The clamping fixture for a magnesium oxysulfide plate grinding device according to claim 1, characterized in that: The outer corners of the base (1) and the outer corners of the frame are both rounded, and an anti-slip pad is fixedly installed at the bottom of the base (1).

Images