40results about How to "Avoid hurting" patented technology

The utility model relates to a continuous casting process stuffing sand collecting device which comprises a stuffing sand receiving hopper, a cross beam rod, a lead screw guide rail, a support and a movable sliding rail, the stuffing sand receiving hopper is connected to one end of the cross beam rod, and the other end of the cross beam rod is connected with the lead screw guide rail and can be driven by a lead screw guide rail motor to move horizontally. The lead screw guide rail is fixed to the top of the support, the support walks along the movable sliding rail, and the movable sliding rail is arranged on one side of the tundish. Aiming at the problems of time and labor waste and potential safety hazards in the prior art, the ladle filler sand in the ladle nozzle can be quickly and safely collected, and the purity of molten steel is improved.

The utility model discloses a cigarette machine cigarette froth suction device, include: mounting panel, dust absorption cover, negative pressure pipeline and rotating component, mounting panel sets up on the frame of cigarette machine, and dust absorption cover includes connecting block, fixed block and adsorption cover, and the both ends of fixed block are connected with the first end of connecting block and the top of adsorption cover respectively, and the both sides of fixed block all are provided with first air duct and second air duct, and the third air duct that communicates with first air duct and second air duct is provided on connecting block, and first air duct, second air duct communicate with adsorption cover, negative pressure pipeline is through mounting panel and communicates with third air duct, and rotating component sets up on mounting panel, and is connected with the second end of connecting block, is used for driving connecting block to rotate. The utility model utilizes first air duct, second air duct and third air duct to connect the negative pressure in negative pressure pipeline to adsorption cover, makes negative pressure wind to adsorb cigarette froth, and the simple and practical structure is convenient to operate, prevents the problem that dust absorption cover falls down fast and hurts people or damages the part.

A linkage cabinet door lock includes a lock body and an installation structure. The lock body has a locking assembly and a limiting mechanism. The locking assembly includes a bolt, a gear locking pin, and a rack. The bolt is slidably disposed in a bolt groove. A gear locking pin is rotatably disposed on the outside of the bolt groove, with a gear at one end and a locking end at the other. The gear meshes with the rack on the bolt to achieve linkage between the bolt and the gear locking pin. The locking assembly has unlocked and locked states. In the unlocked state, a compression spring pushes the bolt out of the lock body, and the locking end screws into the lock body. In the locked state, the bolt retracts into the lock body, and the locking end screws out of the lock body. During the sliding of the bolt, the rack drives the gear locking pin to rotate, realizing the switching between the two states. The limiting mechanism includes a limiting spring and a limiting actuator. The limiting head of the limiting spring is used to prevent the bolt from popping out. The limiting actuator controls the deformation of the limiting spring to release the limiting of the bolt. This invention has a simple structure, is easy to operate, and can realize individual control of the cabinet door on which this mechanism is installed.

This invention discloses a waste recycling device for FIBC (Flexible Intermediate Bulk Container) processing, relating to the field of comprehensive environmental utilization of solid waste. The device includes a hollow frame, a hydraulic rod mounted on the hollow frame, and a pressure plate mounted on the hydraulic rod. The equipment continuously feeds FIBC waste into a flattening machine. The pressure plate is automatically triggered by the weight of the waste, achieving a complete automatic cycle of feeding, weighting, triggering, compaction, resetting, and locking, thus improving waste recycling efficiency. When not in operation, the pressure plate is rigidly limited by a limiting mechanism, preventing hydraulic system depressurization or accidental drop. This ensures uniform compaction density of the plastic waste, reducing the mixing and adhesion of plastic and impurities due to insufficient compaction, facilitating subsequent separation of plastic from other components. It also protects core components such as the hydraulic rod and pressure plate, extending equipment lifespan, reducing maintenance costs, and contributing to the resource-based recycling of plastic waste and comprehensive utilization of solid waste.

The utility model relates to an auxiliary water tank device of a forklift, which belongs to the technical field of electrolytic aluminum production auxiliary tools and comprises a filling tank arranged outside the forklift, the filling tank is connected with a water tank inside the forklift through a transparent pipeline convenient for observing liquid level change, and an opening of the filling tank is connected with a tank cover matched with the opening; a blocking valve used for blocking is arranged on a water inlet in the bottom of the filling box in an abutting mode. According to the device, the water level of the water tank in the forklift is directly observed through the filling tank arranged outside the forklift, the inspection mode of the water level of the water tank is simplified, meanwhile, the baffle and the shielding valve arranged inside block high-temperature steam, the situation that the high-temperature steam is sprayed out to hurt people is avoided, and the safety of water level inspection operation is improved.

This invention discloses a disc spring tension and compression testing device, relating to the technical field of spring testing equipment. The invention includes a base frame, with a first and second receiving boxes placed on opposite sides of the base frame. Supports and bases are installed at the front and rear ends of the base frame, respectively, and abutments are installed on both sides of the rear end of the supports. It also includes a protective assembly comprising a fixed ring mounted on the upper surface of the support and a protective sleeve connected to the rear end face of the fixed ring. The other end of the protective sleeve is located on the front end face of a moving ring. A cylinder is mounted on the top of the front end face of the moving ring. An air port on the outer wall of the cylinder is connected to two connecting pipes via a three-way pipe. The other end of the connecting pipe is connected to an air outlet pipe via a pipe joint. The other end of the air outlet pipe is located on the top of the outer wall of the air cylinder. A rubber pad is slidably installed inside the air cylinder. This disc spring tension and compression testing device provides good protection for workers, has a wide range of applications, and improves material feeding efficiency.

The cutting device comprises a machining table, the upper side of the machining table is fixedly connected with a supporting block, the supporting block is fixedly connected with a first electric push cylinder, the output end of the first electric push cylinder is fixedly connected with a protective cover, and an observation opening is formed in the front side of the protective cover. According to the cutting device, the first electric push cylinder, the protective cover, the observation opening, the protective glass, the cutting assembly and other components are arranged, the protective cover can be pushed through the first electric push cylinder to conduct covering, the cutting assembly conducts cutting in the protective cover, and therefore generated sparks can be effectively blocked in the cutting process and prevented from splashing to hurt people; and meanwhile, the protective glass is arranged at the observation opening, so that the intensity of flame light during cutting can be reduced, the damage of strong light to the vision of the operator is avoided, the operator can observe the cutting condition more clearly and comfortably, and accurate operation is facilitated.

The utility model discloses a circular hoop diameter adjusting device for building construction, and relates to the technical field of diameter adjusting devices. A circular hoop diameter adjusting device for building construction comprises a plurality of lead screws which are circumferentially distributed, and the multiple lead screws are in threaded connection with sliding blocks; the synchronous driving assembly is used for synchronously driving the lead screws to rotate synchronously; a limiting baffle is installed on the sliding block, and an operation distance is reserved between the limiting baffle and the front end of the sliding block. The synchronous driving assemblies such as the conical fluted disc and the bevel gear are driven by the motor to drive the screw rods to rotate synchronously, so that the sliding blocks mounted on the screw rods can synchronously change the positions between the sliding blocks and the circle center of the conical fluted disc, and the required diameter of a steel bar circle can be accurately adjusted; the grooves formed in the front ends of the sliding blocks can limit the steel bars and prevent the steel bars from slipping, and the cushion blocks with the same thickness are additionally arranged in the grooves, so that the depth of the grooves can be flexibly adjusted, and the steel bars are convenient to take and place.

The utility model discloses an anti-falling device of a mine hoist, and relates to the technical field of anti-falling devices, the anti-falling device of the mine hoist comprises a hoist body, the anti-falling device is installed on the hoist body, and an outer protection device is arranged on the outer side of the hoist body and the outer side of the anti-falling device; according to the anti-falling device, the anti-falling device not only depends on direct braking of the sliding rod, the L-shaped rotating frame and the clamping block, but also participates in the anti-falling process through transmission components such as the motor, the gear transmission shaft, the toothed chain and the gear; when falling occurs, the transmission system can slow down the falling speed of the lifting container to a certain extent by utilizing the inertia and the torque of the transmission system, and is matched with mechanical braking of the clamping blocks and the clamping grooves to form a multi-stage braking system, so that the anti-falling reliability and the braking effect are improved, and the risk of anti-falling failure caused by failure of a single component is reduced.

The utility model relates to a demoulding mechanism for a marine pipe fitting processing mould, which belongs to the field of marine pipe fitting processing, and comprises a bottom plate and a slide rail, an inner support moving part is slidably mounted on the slide rail, the inner support moving part comprises an inner support frame and an air cylinder, the inner support moving part is clamped and fixed from the inside of a pipe fitting through the air cylinder, and the pipe fitting is separated from the mould through the inner support moving part and the slide rail; a fan and a spray head are mounted on the inner supporting frame, and the cooling efficiency of the to-be-demoulded part is improved through water vapor spraying and forced air cooling; and the workpiece is prevented from falling and hurting people in the demolding process under the action of the supporting component and the protection ring frame.

The utility model relates to the technical field of computer bases, in particular to a lifting type computer base which comprises a supporting mechanism, the supporting mechanism comprises a supporting column, a bottom block is arranged in the supporting column, a spring is arranged at the top of the bottom block, a limiting plate is arranged in the supporting column, and a lifting mechanism is arranged on the limiting plate. A limiting pipe attached to the limiting plate is arranged in the supporting column. The sliding mechanism comprises a sleeve, a support is arranged on the outer edge face of the sleeve, the support extends into the sleeve and is connected with a connecting column, the connecting column is arranged in the sleeve, the bottom end of the connecting column is connected with a limiting column, the limiting column is arranged in the supporting column in a sliding mode, and a limiting claw facing the connecting column is arranged in the limiting plate. And a U-shaped limiting piece is arranged at the top of the limiting plate. The base has the advantages of being simple in structure, reasonable in design, provided with a protection structure, capable of avoiding the phenomenon that the base pops up, capable of eliminating potential safety hazards and capable of reducing the return rate, and worthy of being widely applied and popularized.

This utility model discloses a quenching device for ring forgings, including a quenching pool. A protective mechanism is provided around the quenching pool, comprising a collection box, a ramp, a guide frame, a frame, a connecting bracket, guide rods, a cylinder, a guide groove, and an observation window. The collection box is located on the lower outer surface of the quenching pool, the ramp is located at the lower end of the collection box, the guide frame is located at the lower end of one side of the outer surface of the collection box, four sets of guide rods are located at the four corners of the upper outer surface of the collection box, the cylinder is located in the middle of the guide rods, and the frame is located on the upper outer surface of the cylinder. This quenching device for ring forgings can shield and protect against flying debris through the frame, connecting bracket, and observation window, preventing injury from flying debris. It also facilitates the sliding of flying debris along the observation window into the collection box for collection. The operation is simple, offering better prospects for use.

This utility model discloses a diamond composite grinding disc, comprising a mounting substrate and a diamond grinding layer. Beneficial effects: The mounting substrate and the base post are integrally connected. The shear force generated during grinding is transferred to the base post through the insertion hole, and then to the mounting substrate through the base post. The base post, instead of the adhesive, bears most of the shear force, thus significantly improving its integrity and shear resistance, avoiding peeling, and enhancing stability in use. Simultaneously, the top surface of the mounting substrate is integrally connected to top fins, which expand the heat dissipation area of ​​the top surface of the mounting substrate. Part of the heat generated during grinding is transferred to the mounting substrate through the base post and dissipated outwards through the expanded top fins on the top surface of the mounting substrate, significantly improving heat dissipation performance. The base post also simultaneously increases its heat conduction area, further improving heat dissipation performance and avoiding cracking problems caused by different thermal expansion efficiencies between different materials, further enhancing stability and work efficiency in use.

The utility model relates to the field of compression strength test positioning tools, and discloses an automatic positioning tool for testing compression strength of materials, which comprises a tester, a placing table and an extrusion table, the placing table is arranged on the upper portion of the tester, the extrusion table is arranged above the placing table, a positioning mechanism is arranged on the upper portion of the tester, and the positioning mechanism is arranged on the lower portion of the tester. The positioning mechanism comprises a positioning assembly; the positioning assembly comprises a sliding rail fixedly connected to the surface of the tester, and two sets of moving frames are symmetrically and slidably connected to the outer side of the sliding rail. According to the utility model, the extrusion table is connected with the guide groove of the moving frame through the sliding piece, when the extrusion table moves up and down and the sliding piece moves to the middle part of the moving frame, the positioning piece automatically positions a tested material, when the sliding piece moves to the lower part of the moving frame, the extrusion table extrudes the tested material, and meanwhile, the positioning piece is far away from the placing table; and measurement errors caused by extrusion displacement are reduced.

The invention relates to the technical field of medical instruments, in particular to a limb restraining device for mental health treatment. The bearing component comprises a clamping plate and a placing plate fixedly connected to the top end of the clamping plate, a fixing ring used for restraining limbs is hinged to the placing plate, and a fixing assembly used for fixing the device to a mounting surface is arranged at the bottom end of the clamping plate; the locking assembly is arranged on one side of the placing plate and used for achieving detachable locking of the fixing ring and the placing plate; the limiting mechanism comprises a threaded cylinder integrally formed with the fixing ring, the arc-shaped limiting piece tightly abuts against the surface of the upper arm of the patient, so that the movement of the upper arm of the patient is restrained, meanwhile, the restraining mode that a spring A is matched with the arc-shaped limiting piece is adopted, and the limiting mechanism can be used for limiting the movement of the upper arm of the patient. On the premise that the upper arm of the patient is effectively restrained, a small activity space is still reserved, and excessive compression and extrusion of the arc-shaped limiting piece on muscles and blood vessels of the upper arm of the patient are avoided.

This utility model discloses a stator assembly and a motor using the same, relating to the technical field of motors and their components. It includes a stator support, a stator core, and a stator winding. The stator support is sleeved on the stator core to shield at least a portion of the stator core. The stator winding is wound around the stator core. The stator support includes at least an insulating cover plate. The insulating cover plate is fixedly disposed at the stator support for shielding at least a portion of the stator core and / or the stator winding. This utility model primarily addresses the problem of providing a reasonable and reliable shielding structure for the stator assembly. It reduces the likelihood of mechanical friction and collision between the stator core and / or the stator winding, thereby decreasing the possibility of mechanical damage. Furthermore, it isolates the stator core and / or the stator winding from liquid and moisture erosion to a certain extent, reducing the possibility of corrosion. It also prevents accidental contact by personnel.

The utility model relates to the technical field of coal preparation, in particular to a remote control system for a filter press of a coal preparation plant, which comprises a filter press field control cabinet and a centralized control system, the pressure filter field control cabinet comprises a touch screen and a field PLC (Programmable Logic Controller), the touch screen is in communication connection with the field PLC, the field PLC is electrically connected with electrical equipment for realizing normal work of the pressure filter, and the centralized control system comprises a lower PLC and an upper industrial computer which are arranged in a control room and are in communication connection with each other; the lower PLC is in communication connection with the field PLC; the system further comprises a black water detection device, the black water detection device comprises an illuminance sensor and an LED illuminating lamp, the illuminance sensor and the LED illuminating lamp are oppositely arranged on the two side faces of the filter press water receiving tank so that light beams emitted by the LED illuminating lamp can penetrate through water in the filter press water receiving tank and then irradiate the illuminance sensor, and the illuminance sensor is electrically connected with the lower PLC. An alarm threshold value can be set according to the condition that the illumination intensity, detected by the illumination sensor, of the LED illuminating lamp in the clean water state in the water receiving tank of the filter press is taken as the reference, the illumination intensity detected by the illumination sensor can be reduced along with the mixing of the clean water into materials, and when the illumination intensity is reduced to the alarm threshold value, the lower PLC can affirm that black water is generated; at the moment, an alarm can be given through the upper industrial computer, a shutdown instruction is sent to the field PLC, remote monitoring is achieved, the labor cost is reduced, and people are prevented from being hurt by high-pressure oil and high-pressure wind.

This invention provides an automatic hook assembly / disassembly method, comprising the following steps: fixing hook body chucks and anti-rebound devices arranged vertically on a fixed bracket; hoisting the hook through the hook body chucks, with the lower cylinder of the hook confined within the hook body chucks and anti-rebound devices; moving the sleeve wrench to grip and clamp the upper cylinder of the hook; starting the sleeve wrench to rotate the upper cylinder of the hook, causing the upper cylinder to unfasten or fasten to the lower cylinder of the hook; removing the sleeve wrench and hoisting the hook away, completing the hook assembly / disassembly. Using this automatic hook assembly / disassembly method, the hook is effectively clamped, and the sleeve wrench, powered by a hydraulic station, rotates smoothly with adjustable speed and can rotate bidirectionally, simultaneously achieving hook disassembly and installation. The entire operation is stable and safe, eliminating the need for multiple operators to perform hammering, hoisting, or impact operations, completely eliminating multiple safety hazards and ensuring the safe conduct of hook repairs.

The utility model relates to the technical field of the barrier remover, specifically relates to a track barrier remover with the particle barrier that prevents the splashing, include: V -shaped fixed beam, two inclined planes of V -shaped fixed beam front recess respectively have arc flow guide cavity, the lower edge of arc flow guide cavity inner wall is detachably connected with strip barrier plate respectively, V -shaped fixed beam upper surface both ends are connected with elastic material baffle plate mechanism respectively, be suitable for guiding arc flow guide cavity inside sliding and flying out particle barrier and drop down, the elastic material baffle plate mechanism includes Z -shaped fixed link, angle adjusting spare and elastic baffle piece, one end of Z -shaped fixed link is connected with V -shaped fixed beam, the other end of Z -shaped fixed link is connected with elastic baffle piece through angle adjusting spare. The utility model has reasonable structure, has increased the safety factor of equipment operation.

This utility model belongs to the field of water-stop screw technology, and particularly relates to a multifunctional water-stop screw assembly, including a water-stop screw pre-embedded part and screw parts threadedly connected to both sides of the water-stop screw pre-embedded part. Water-stop plates are provided on the outside of both sets of screw parts, and positioning seats are installed at opposite ends of both sets of water-stop plates. Adjusting nuts are threadedly connected to the outside of both sets of screw parts. By installing two sets of screw parts threadedly connected to both sides of the water-stop screw pre-embedded part, the two sets of screw parts can be rotated to adjust the extension length of the screw parts, thereby facilitating the adjustment of the overall length of the assembly. The positions of the two sets of water-stop plates can also be quickly adjusted, allowing them to move to the seepage channel, block the seepage channel, and allow the positioning rings on the outside of the two sets of water-stop plates to quickly contact the inside of the module, thus accurately positioning the water-stop plates and the water-stop screw pre-embedded part, ensuring the splicing accuracy of the template.

This utility model provides a rebar cutting device for building construction, relating to the technical field of cutting equipment. It includes a support leg with a clamping assembly installed at its upper end. The clamping assembly includes a placement platform mounted on the upper end of the support leg, with a rebar placement groove on the upper surface of the platform. An installation block is installed on the right side of the placement platform. By setting up the clamping assembly, the rebar can be tightly clamped from both sides by two sets of fixed clamping rods, preventing loosening during cutting and ensuring cutting accuracy. Simultaneously, the flexible opening and closing design of the fixed clamping rods facilitates quick clamping and disassembly of the rebar, improving work efficiency. These features of the clamping assembly not only improve cutting quality and ensure the accuracy of cutting dimensions but also guarantee operational safety, preventing rebar from loosening and flying out, thus providing a safe operating environment for operators and increasing work efficiency while reducing the time consumed in the clamping process.

This invention discloses a fully automatic circuit breaker anti-pumping and three-phase inconsistency testing system and its operating method, relating to the field of power system testing. Traditional anti-pumping testing methods require two people, wasting manpower and posing safety risks. This invention includes a monitoring device and a control device communicatively connected to the monitoring device. The monitoring device includes a camera for monitoring the circuit breaker, a position adjustment mechanism for adjusting the camera's position, and a bio-monitoring alarm for triggering an alarm when personnel approach. The control device includes a switching interface connected to the circuit breaker, a switching processing module connected to the switching interface, a touch screen for display and human-machine interaction, a communication module connected to the monitoring device, and a controller connected to the switching processing module, touch screen, and communication module. This technical solution is compact and lightweight, can be operated by a single person, and ensures safe testing.

The utility model discloses a kind of inserted magnetic steel devices, including magnetic steel positioning plate, sheath, base and riveting assembly.Sheath is fixed to base, rotor is placed in sheath and base chamber;Magnetic steel positioning plate covers sheath, and its magnetic steel groove is used to insert magnetic steel.Riveting assembly contains upper and lower stacked rivet fixing plate and rubber pressure head, both are provided with through rivet head hole and insert rivet head.After inserting magnetic steel, rotor is sleeved with magnetic steel end plate, rivet head and magnetic steel end plate rivet rivet and fix magnetic steel, can avoid the safety and quality problem of manually inserting magnetic steel, improve insertion efficiency and motor yield.

The utility model discloses an anti-radiation lead door, relates to the field of hospital supplies, and provides an anti-radiation lead door which is more labor-saving to open. The anti-radiation lead door comprises a door frame, a door body and an opening and closing auxiliary device. Mounting plates are arranged on the door frame; a connecting rod is arranged on the door body; the switch auxiliary device comprises a rotating bottom plate, a motor, a winding drum, a pull rope, a spring, a pulley, a pressure measuring device, a brake device and a controller; the rotating bottom plate is horizontally arranged and hinged to the mounting plate, the axes of the motor and the winding drum are parallel to the door frame, the motor and the winding drum are both mounted on the rotating bottom plate, and the winding drum is connected with the motor; the pulley is located on the inner side of the winding drum and connected with the rotating bottom plate, the two ends of the pull rope are connected with the winding drum and the spring respectively, the pull rope is wound around the winding drum, and the spring is connected with the inner end of the connecting rod. The brake device can limit rotation of the winding drum, and the pressure measuring device is located on the inner side of the winding drum and can measure pressure given by the winding drum. The controller can control the motor and the brake device to work according to measured values of the pressure measuring device.

This invention provides a tempered glass plate strength testing device, including a workbench, a protective box fixed to the top of the workbench, a mounting frame fixed to one side of the workbench, a hydraulic push rod fixed to the top of the mounting frame, a lifting plate fixed to the bottom output of the hydraulic push rod, a cover plate at the bottom of the lifting plate, multiple telescopic rods (first type) fixed between the lifting plate and the mounting frame, multiple telescopic rods (second type) fixed between the lifting plate and the cover plate, and a through rod fixed to the middle of the bottom end of the lifting plate. This invention has the following advantages: multiple sets of cameras are fixed to the lower part of the through rod by mounting columns and arranged around the pressure sensor. A wire tube is used to carry the signal transmission wires of the sensor and cameras. Multiple sets of cameras simultaneously capture images of the glass pressure area from multiple directions, eliminating blind spots and completely recording the entire process of crack generation, propagation, and fragmentation. The images are transmitted to a monitor in real time, allowing staff to visually observe the damage pattern.

The application discloses a vertical lifting coal conveying device capable of automatically overturning and discharging, and belongs to the technical field of coal conveying devices. The vertical lifting coal conveying device comprises a vertical rail frame arranged vertically, a curved rail frame which is seamlessly connected above the vertical rail frame and is arranged to be upwardly curved by 90 degrees, a turnover frame group which is slidably arranged at the right side of the vertical rail frame and the curved rail frame, a lifting driving mechanism which is fixedly arranged in the vertical rail frame and used for driving the turnover frame group to slide, and a tipping bucket which is fixedly arranged on the turnover frame group and is provided with an opening at the top. When the tipping bucket slides from the bottom of the curved rail frame to the top of the curved rail frame along with the turnover frame group, the opening of the tipping bucket is gradually turned from the top to the side. The vertical rail frame and the curved rail frame are seamlessly connected, and the turnover frame group slides on the rail. The lifting of the tipping bucket is realized by the vertical rail frame, and the automatic overturning and discharging of the tipping bucket are realized by the curved rail frame. The whole process almost does not need manual assistance, and the discharging process is smooth, efficient and safe.

The utility model discloses a pressure testing machine. Its technical scheme main points are: a pressure testing machine, including the detection mechanism for detecting the sample compression resistance degree and setting in the detection mechanism one side for showing the control cabinet of sample compression resistance intensity, the outside of detection mechanism is provided with the protection mechanism, and the protection mechanism includes the protection frame and the protection board of sliding setting on the protection frame, and the bottom fixedly connected with the adjusting block for adjusting the position of protection board of protection board bottom, the bottom of protection frame corresponds the clamping groove of adjusting block and is opened, and the top and bottom of protection board all are provided with fixed assembly no.

This utility model belongs to the field of hardware processing technology, specifically a hardware processing drilling device with self-cleaning function. It includes a base with a support frame fixedly attached. Two limiting grooves are opened on the top side of the base, and two sliders are slidably assembled in each groove. A semi-enclosed body is fitted onto the top of the two sliders at the same end. Each semi-enclosed body has a semi-circular hole. First pneumatic cylinders are installed on the bottom ends of both sides of the support frame. Before drilling, the two first pneumatic cylinders are controlled synchronously via a control panel, causing the two semi-enclosed bodies to move closer together until they are in contact. This covers the placement platform and the clamped hardware, effectively preventing metal debris generated during drilling from splashing outside the work area and facilitating subsequent collection of the metal debris.