693results about How to "Prevent popup" patented technology

A method, apparatus for single sign-on based on the sign-on state, including: a third-party application on the terminal receives the user application request, obtains a sign-on token, and sends the sign-on status verification request to the resource server which stores the terminal user's sign-on status data via the third-party application server; the sign-on token contains the terminal user's sign-on status data and the sign-on token and the third-party application identifier information are carried by the sign-on state verification request; the resource server receives and analyzes the sign-on status verification request to determine whether the data information in the sign-on status verification request matches the data information stored in the resource server; the third-party application server requests the access right from the resource server according to the request token, and the resource server verifies whether the data information in the request token matches the data information stored in the resource server and sends the access token to the third-party application server, thus avoiding frequent pop-up of the sign-on box. The invention also provides related device and processing method and apparatus of the application.

The invention provides a single-cylinder bolt expansion and contraction control system and a construction machine. The single-cylinder bolt expansion and contraction control system comprises a first reversing control valve communicated with an auxiliary oil source; a telescopic oil cylinder comprises a core pipe which is arranged on a cylinder barrel and accommodated in a piston rod; a first oil circuit is connected with the first hydraulic fluid port of the first reversing control valve; a second oil circuit is connected with the second hydraulic fluid port of the first reversing control valve; the oil inlet ends of a first check valve and a second check valve are communicated with the telescopic oil cylinder; one end of a third oil circuit is communicated with the oil outlet ends of the first and the second check valves; and the other end of the third oil circuit is communicated with an electromagnetic ball valve. The core pipe in the telescopic oil cylinder is only used for returning oil during the work process of the single-cylinder bolt expansion and contraction control system. The pressure of return oil is lower, so that the impact on the core pipe is lower, and the service life of the core pipe is prolonged.

The invention discloses a device and a method for intercepting pop-up windows. The device comprises a memory unit, a setting unit, a window position acquisition unit, a position judging unit, a blocking unit and a user interface, wherein the memory unit is used for storing the designated region range information of a display screen; the setting unit is used for setting a window hook program for intercepting window information and receiving the intercepted window information; the window position acquisition unit is used for acquiring a coordinate position region in which a window corresponding to the window information is to be displayed on the display screen when the window information is received by the setting unit; the position judging unit is used for judging whether the coordinate position region is in a designated region range of the display screen, expressed by the designated region range information of the display screen, stored in the memory unit, and the blocking unit is informed when the position judging unit is in the designated region range; the blocking unit is used for blocking the window corresponding to the window information from popping up; and the user interface is used for receiving the instruction of a user and creating, modifying or deleting the designated region range information in the memory unit according to the instruction. Through the technical scheme of the invention, the problem that the intercepting effect is poor when features are modified by the advertising window is avoided.

The invention discloses a camera module and terminal equipment. The camera module comprises a camera and a driving mechanism. the driving mechanism comprises a first elastic piece; an elastic limitingassembly and a telescopic driving assembly, the camera comprises a camera body and a connecting part connected with the camera body, the connecting part is provided with a guide rail, the guide railis provided with a limiting part, the telescopic driving assembly is connected with the first end of the elastic limiting assembly, the second end of the elastic limiting assembly is in sliding fit with the guide rail, and the first elastic piece is connected with the camera body or the connecting part; When the camera is in a retraction state, the second end of the elastic limiting assembly is inlimiting fit with the limiting part; When the camera is in a pop-up state, the second end of the elastic limiting assembly is separated from the limiting part. According to the scheme, the problems of relatively high cost and relatively complex structure of the current terminal equipment can be solved.

The invention belongs to the technical field of construction equipment, and specifically discloses a metal separation device for construction waste. A feed hopper is arranged at the upper end of a box; engaged crushing rollers are mounted below the feed hopper; a discharge hopper is arranged at the lower end of the box; a supporting shaft is arranged below the crushing rollers; a ferromagnetic unit comprises a spring; the upper end of the spring is connected with an iron core; a coil is wound on the periphery of the iron core; a single electromagnet group comprises a plurality of ferromagneticunits; the ferromagnetic units are arranged in a row in the axial direction; a rotating shaft is coaxially fixed outside the supporting shaft; a plurality of connecting holes are formed in the rotating shaft; coils in the single electromagnet group are connected into a wire; two ends of the wire are connected with conducting plates respectively; a negative electrode plate and a positive electrodeplate in frictional connection with the conducting plates are arranged on the inner wall of the box at two ends of the rotating shaft; a screen is arranged below the rotating shaft slantly; and a slag outlet is formed in the side wall of the box at the lower end of the screen. The metal waste inside the construction waste can be separated continuously by adopting the technical scheme, and machinehalt is not needed.

The invention relates to the field of articles of daily use, and particularly relates to a jewelry box used for holding jewelry. The jewelry box comprises a base plate, a backing plate and an overturning cover, wherein two vertical center poles are arranged on the left side and the right side of the backing plate, and are respectively connected with a left half box and a right half box which are opened by virtue of a left rotating mechanism and a right rotating mechanism; one side of the vertical edge of the left half box and one side of the vertical edge of the right half box are fixed onto the rotating mechanisms by using articulated pieces; storage lattices are arranged on the base plate; through the combination of the rotating mechanisms by virtue of a plurality of connecting rods and rotating discs, storage boxes and the storage lattices on each layer can be exposed out automatically when the storage boxes are rotated and opened towards the two sides, the storage boxes and the storage lattices can rotate at a 15-degree angle by pulling a pull rod in one time when being rotated and opened, so that the layers for storing jewelry are completely exposed out, different types of jewelries are classified and stored, and the jewelry box is beneficial for trimming; besides jewelry, the jewelry box can also used for storing cosmetics; articles inside the left half box, the right half box, the storage boxes, the storage lattices do not interfere with each other when being taken out, and the articles inside the jewelry box are clear at a glance, so that a user can take the jewelry conveniently.

The invention discloses a calendar-based task management system and method. The system comprises a calendar module and a task list module which can be displayed side by side. The calendar module is used for displaying a date which comprises year, month and day information, a task quantity which needs to be completed of the day is recorded at the position of the day information, and a current data is positioned and displayed. The task list module records, changes or deletes the task information and displays the information through a list form. The task information is the information a task which needs to be completed in a date displayed in the calendar module. Compared with the prior art, the calendar-based task management system and method have the advantages that through selecting the data of a calendar interface, starting and ending dates of the task are inputted, the pop-up of a date selection box is avoided, the practicability is high, the application scope is wide, and the system and the method have very good promotion and application values.

The invention discloses a roller brush fast dismounting and mounting device and a cleaning instrument thereof. The roller brush fast dismounting and mounting device comprises an ejection device and a position limiting device, wherein the ejection device exerts axial ejection elastic force on a roller brush; the position limiting device converts the elastic force into elastic potential energy and limits the axial displacement of the roller brush; the ejection device comprises an ejector pin and a pressure spring; the ejector pin is arranged inside an axial blind hole formed in one end of the roller brush; the ejector pin is provided with a flange; the pressure spring exerts axial elastic force on the ejector pin through abutting the flange; an ejector pin press plate for limiting the ejector pin to be disengaged from the blind hole is arranged in the opening position of the blind hole; one end of the roller brush is connected with a bearing seat; the roller brush has the rotating degree of freedom for rotating around the self axial line relative to the bearing seat; the position limiting device is provided with a release key with a projected part and a bearing seat with a position clamping groove; the projected part is matched with the position clamping groove. By using the device, the dismounting or the mounting of the roller brush can be realized only through one step; the cleaning of the roller brush is convenient; the roller brush mounting and dismounting efficiency is further improved; the operation environment is improved.

The invention relates to a dispenser and particularly relates to an automatic dispenser. The automatic dispenser comprises a dispenser main body, a switch control device and a supporting device, wherein the switch control device and the supporting device are respectively mounted on two sides of the dispenser main body; the switch control device comprises a steering engine, a cross bar and a steering engine switch; the supporting device comprises a supporting rod, a supporting rod fixing part and a rocker arm; the steering engine is mounted on the dispenser main body; the cross bar is hinged to the dispenser main body; one end of the cross bar is propped against the steering engine switch; one end of the supporting rod is hinged to the supporting rod fixing part mounted on the dispenser main body, and a torsion spring is arranged at the hinged part; the rocker arm is arranged at the other end of the supporting rod; the other end of the cross bar is flexibly connected with the other end of the supporting rod; a dispensing object to be dispensed is positioned in the dispenser main body and is supported by the dispenser main body and the supporting rod; a fuse of the dispenser is jacked by the rocker arm. The automatic dispenser disclosed by the invention has the advantages of dispensing automation, simple structure, convenience in operation, good maneuverability, high practicality, safety and reliability.

The invention discloses a method for controlling the orderly connection of a Bluetooth headset by using a terminal, which comprises the following steps: setting a service status of an autologous hands-free profile HFP to be visible and connected by using theterminal and setting service statuses of an autologous advanced audio transfer profile A2DP and an audio / video remote control profile to be invisible and unconnected; transmitting an HFP connection request to the terminal by using the Bluetooth headset; and transmitting a response of agreeing with HFP connection to the Bluetooth headset by using the terminal. The invention further discloses a system for controlling the orderly connection of the Bluetooth headset by using the terminal; and when the connection is actively initiated by the Bluetooth headset, different Profile connection sequences caused by different Bluetooth headset manufacturers can be avoided by applying the method and the system so that the problem of incompatible profile connection is solved.

The invention discloses a stably placed oxygen bottle for emergency medical aid and relates to the technical field of medical instruments. The stably placed oxygen bottle comprises a base; two symmetrical universal wheels are fixedly connected with the bottom of the base; an oxygen bottle main body is placed above the base; a first groove which is matched with the oxygen bottle main body is formedon the middle part of the upper surface of the base; the bottom end of the oxygen bottle main body is inserted into the first groove; two symmetrical support rods are fixedly connected with the uppersurface of the base; the two support rods are respectively located on the two sides of the groove. In the stably placed oxygen bottle for emergency medical aid, positive and negative rotating motorsare arranged for driving loop coils to drive idler wheels to press movable plates so as to drive supporting legs to move downward under the action of screw rods, so that the universal wheels are prevented from touching the ground and the device is supported by supporting legs to stably stand. Under the action of first springs, the oxygen bottle main body is clamped by arc-shaped splints, so that the oxygen bottle main body is prevented from shaking or falling.

The invention relates to the technical field of bending devices, and discloses a copper pipe continuous bending device with a discharging ejection device. The copper pipe continuous bending device comprises a machine body; a right supporting rod is fixedly installed on the right side of the top of the machine body, a motor is fixedly installed at the bottom of an inner cavity of the machine body,and a master gear is fixedly arranged on an output shaft of the motor in a sleeve mode; and the bottom end of the main gear is connected to a sub-gear in a meshed mode, a screw rod is fixedly arrangedin the middle of the sub-gear in a sleeve mode, the top end of the screw rod penetrates through the right supporting rod to extend into the interior of the right supporting rod, and a connecting rodpositioned inside the right supporting rod is arranged on the outer surface of the screw rod in a threaded mode. According to the copper pipe continuous bending device with the discharging ejection device, an ejection rod, an ejection head and an ejection spring are arranged, when the bending is completed, an upper bending head is separated from a copper pipe, the acting force of the ejection spring pushes the ejection rod and the ejection head to rise, so that the copper pipe is ejected out, and the labor intensity of workers is reduced.

The invention discloses a pipeline nondestructive testing device based on an electric field fingerprint method, belonging to the field of pipeline nondestructive testing technical equipment. The device comprises a to-be-tested pipeline (2) and a voltage acquisition area (3) formed in the to-be-tested pipeline (2), wherein multiple capture electrodes are arranged in the voltage acquisition area (3) in the same distance; current input units are arranged on two sides of the voltage acquisition area (3); and the pipeline nondestructive testing device is characterized in that the capture electrodes are fixed on the surface of the to-be-tested pipeline (2) in a non-welding form by virtue of multiple groups of capture electrode fixing sleeves (4) in the voltage acquisition area (3). According to the device, the capture electrodes are fixed on the surface of the to-be-tested pipeline in the non-welding form by virtue of the multiple groups of capture electrode fixing sleeves, accurate detection of the electric field fingerprint method is realized, and nondestructive testing of the to-be-tested pipeline is really realized.

The invention discloses a height adjusting device for surveying and mapping. The device comprises a bottom plate, a tripod and a supporting plate. The bottom plate is a circular plate, the upper end face of the bottom plate is provided with sliding grooves which are each of an arc structure, the distance D1 between the head end of each sliding groove and the center of the bottom plate is larger than the distance D2 between the tail end of each sliding groove and the center of the bottom plate, the three grooves are evenly arranged in the circumferential direction, the tripod comprises three telescopic rods, the lower ends of the telescopic rods are hinged to sliding rods, the sliding rods are in sliding fit with the sliding grooves, the bottom of each sliding groove is provided with multiple blind holes, and the lower ends of the sliding rods are in inserted connection fit with the blind holes. By means of the eccentric sliding grooves, the height of a whole supporting device is accurately and finely adjusted to be kept consistent with the height of a measured target, and practical using significance is great.

The invention discloses an automatic book storing-taking bookshelf which comprises a frame, a control circuit arranged on the lower surface in the frame, a book position clamping device arranged on the upper surface in the frame, a book turning device arranged on the left side in the frame, and a book automatic pressing device arranged on the right side in the frame. The bookshelf further comprises a book extracting device which is arranged between the book turning device and the automatic pressing device. The book extracting device is provided with a book width adjusting device. The bookshelf is placed at a high position of a room, needed books can be automatically taken out through the book extracting device, and meanwhile books which are not needed are prevented from jumping out of the bookshelf through the book width adjusting device, structure is simple, using is convenient, practicability is strong, and the automatic book storing-taking bookshelf is suitable for being used in places such as a family, a library and an office.

The invention relates to the field of auto-feeding mechanism, in particular to an auto-feeding mechanism of flaky parts, comprising a storage box, a sliding guide rod, a feeding presser plate, a hold-down spring and retaining seats; the storage box is provided with a storage cavity inside, and an end surface of the discharge end of the storage box is provided with a discharge port; the feeding presser plate is disposed on the sliding guide rod and slides up and down in the storage cavity along the sliding guide rod; the hold-down spring sleeves the upper end of the sliding guide rod; the retaining seats are disposed on two opposing sides of the discharge port, and a retaining tongue extends right below the discharge port or retracts into a transverse sliding hole. The auto-feeding mechanism can ensure that a flake part is precisely and continuously placed at a specified position from the discharge port, more preferably, the retaining seats can retain the flaky part in a non-discharge state inside the storage box, and ejection of the part is thus avoided.

An LCD module covered a protective film and stored in a vinyl bag is held by cushioning material, and the cushioning material is placed in a box. A plurality of grooves are formed in a mutually parallel fashion on the lower and upper members of the cushioning material. The grooves form a supporting portion for supporting the edges of LCD modules that are fitted in the grooves. The depth of the grooves is slightly less than the width of the frame area of the LCD modules. An upwardly protruding convexity is formed in the area between the grooves and on both sides of the rows comprising the plurality of grooves. The convexity is a pop-out prevention portion for preventing LCD modules from popping out from the cushioning material during transport. Soiling can thereby be prevented from occurring on the display area of the display modules.

The invention relates to an accessory (10) for a sliding door or a sliding window, the sliding door or the sliding window is provided with a fixed frame (7) and a sliding wing (8), and the sliding wing (8) can at least be arranged in a parallel manner relative to the fixed frame (7) and can move in a sliding manner. The accessory comprises a least a sliding vehicle (1), a sliding track (6) and anti-dislocation mechanisms (5, 20), the sliding vehicle (1) coupled to the sliding wing (8) can move in a sliding manner along the sliding track, the anti-dislocation mechanisms (5, 20) are used for preventing the sliding vehicle (1) from popping out from the sliding track (6), the anti-dislocation mechanisms (5, 20) are provided with rotating members (9, 21) which can rotate at between acting positions and non-acting positions around rotating shafts, and the anti-dislocation mechanisms (5, 20) are directly arranged on the sliding vehicle.

The present invention belongs to the technical field of sockets, and provides a safety socket. The safety socket comprises a socket body, the upper end face of the socket body is provided with jacks and pin holes, the pin holes are distributed between the same set of jacks; the side wall of the jacks are provided with safety sliding holes communicating with the pin holes, sliding blocks are slidingly matched with the internal portions of the safety sliding holes, each sliding block comprises a tail end close to one side of one pin hole and one head end close to one side of one jack, each headend is provided with one spring contact chip connected with a power supply, the sliding blocks are provided with first springs configured to push the sliding blocks to one sides of the pin holes; spring pins butted against upwards are matched in the pin holes, the upper ends of the spring pins are extruded out of the socket body, the side walls of the spring pins are provided with taper sections being in contact with the tail ends and groove sections inlaid with the tail ends so as to avoid the risks of electric shock when kids insert objects into the jacks.

The invention relates to a catapulting rollout device and a catapulting system of an unmanned aerial vehicle. The catapulting rollout device of the unmanned aerial vehicle is arranged on a catapulting frame and used for bearing the unmanned aerial vehicle and catapulting the unmanned aerial vehicle. The catapulting rollout device comprises a locking mechanism, a rollout frame arranged on a sliding track of the catapulting frame and used for bearing the unmanned aerial vehicle and sliding wheels arranged at the bottom ends of the rollout frame, wherein the locking mechanism is arranged at the end, close to the initial end of the catapulting frame, of the rollout frame and used for locking the unmanned aerial vehicle at the initial end of the catapulting frame and can ensure that the rollout frame slides on the sliding track and accordingly drives the unmanned aerial vehicle on the rollout frame to slide. Direct contact between the unmanned aerial vehicle and the catapulting frame is avoided, it is ensured that the catapulting frame structure is not damaged due to catapulting, and the catapulting rollout device is durable and stable to use and can catapult the unmanned aerial vehicle in a long-time and high-efficiency mode.

The invention discloses an irregular blank workpiece clamping table for a vertical milling machine, and belongs to the field of machining. The irregular blank workpiece clamping table comprises a workpiece groove, fixing rods are arranged on the side walls of the workpiece groove, and fasteners are arranged at the ends, placed in the workpiece groove, of the fixing rods. Each fastener comprises a casing structure, and a clamping piece is arranged at one end of each casing structure. The clamping pieces and the casing structures are hinged to each other, and bore spines are arranged on the clamping pieces. A telescopic supporting rod is arranged at the bottom in the workpiece groove, and a pressure-bearing mechanism is arranged at one end of the telescopic supporting rod. A clamping layer is arranged on the upper portion of the workpiece groove, and a pair of opposite edges of the clamping layer are each provided with a movable vice jaw. Compared with the prior art, through the horizontal clamping of multiple supporting points and the multi-point fixing to workpieces of the clamping layer, blank pieces in various shapes can be clamped; the phenomenon that the blank pieces need to be subjected to rough machining first to be in regular shape so as to be clamped conveniently is needless, and large cutting allowance is reserved for subsequent machining; and moreover the labor intensity is lowered, and manpower and material resources are saved.

The invention discloses a system startup item program running processing method and a system startup item program running processing device. The system startup item program running processing method includes the following steps. A system startup item program is scanned and leading information on the system startup item program is obtained. Static linkage papers of the leading information are obtained. If obtaining the static linkage papers of the leading information is failed, the system startup item program, corresponding to the leading information, is prohibited from starting up. The system startup item program running processing method and the system startup item program running processing device can avoid the problem that a user is bothered by a prop-up prompt box as a startup item lacks of a load file in the process of starting a computer.

The embodiment of the invention provides an application client login method and device, computer equipment and a computer readable storage medium. The embodiment of the invention belongs to the technical field of application client development. The application client login method includes the steps that: when an application client logs in a server, if the client logs in the server successfully byusing a reserved account and a password, the server generates a login certificate for the client and sends the login certificate to the client; when the client logs in the server next time, the clientjudges whether the client is allowed to directly log in the background through the login certificate or not in a first preset mode; and if the client judges that the user can directly log in the background through the login certificate, when the client logs in the server, the reserved account and the login certificate are sent to the server, and if the server verifies the reserved account and thelogin certificate successfully, the client is allowed to log in the server, so that the interaction process of popping up a login window and confirming the account and the password by the user when the client logs in the server is avoided, and the efficiency of logging in the server by the client is improved.

The invention relates to a semi-automatic keycap press, comprising a table supporting frame, a pushing module, an ejecting module and a keycap arranging mould disc, wherein the table supporting frame consists of a base plate, a top plate and four supporting columns; the pushing module is provided with an air cylinder, a pushing plate and a pressing plate; the air cylinder is arranged on the top plate, and a piston rod of the air cylinder extends out of the top plate; the pushing plate is connected with the lower end of the piston rod; the pressing plate is connected with the lower part of the pushing plate; the ejecting module is provided with an upper supporting plate, a lower supporting plate, four guide columns and a support column; the lower supporting plate is fixedly arranged on the base plate; the four guide columns are respectively arranged on four corners of the lower supporting plate; the upper supporting plate is provided with a through hole and is connected with the four guide columns in a sliding manner; a spring is respectively sleeved on the guide columns between the upper supporting plate and the lower supporting plate; the support column is arranged on the lower supporting plate below the through hole and corresponds to a keycap arranging slot on the keycap arranging mould disc; and the keycap arranging mould disc is detachably arranged between two mould disc locating blocks. The semi-automatic keycap press disclosed by the invention has the advantages of capabilities of reducing operation intensity of labors and improving operation efficiency.

The invention discloses an automatic one-click deploying method for an SQL Server, and belongs to the technical field of computers. The automatic one-click deploying method includes the following installation steps that 1) an automatic script installer and an installation package are initialized; 2) to-be-installed SQL Server database parameters are input; 3) an SQL Server database is installed; 4) memory parameters and a shared IP are adjusted. Installing operation of operation and maintenance staff can be replaced, it is avoided that UI page reminding is popped up, a ConfigurationFile.ini silence configuration file is set and modified, configurations of SQL Server related parameters are set, a security patch is installed for the installed SQL Server, safety is high, and the operating steps are simple.

The invention discloses a valve, in particular to a nuclear second-stage electric V-shaped brake valve comprising a valve rod and an electric device which can drive the valve rod to reciprocate on a straight line, wherein the bottom end of the lower part of the valve rod is fixedly connected with a flashboard subassembly which comprises a flashboard frame, a left flashboard, a right flashboard, a valve seat, a spring and a locating rack, the bottom end of the lower part of the valve rod is also fixedly connected with the flashboard frame, the left flashboard and the right flashboard are clamped in the flashboard frame and are also fixed in the flashboard frame by the locating rack, and a cavity which is provided with a horizontal compression spring is formed between the inner walls of the left flashboard and the right flashboard; the bottom of the flashboard frame is matched with a spacing lug boss of a valve body, and the side wall of the flashboard frame is provided with a groove which can be matched with a guide lug boss of the valve body; a left cavity and a right cavity are formed on the valve body by the flashboard subassembly; the locating rack, the flashboard frame and the valve rod are mutually fixedly connected; the valve seat is arranged between the outer wall of each flashboard and the valve body, and the other side of the valve seat is welded with the valve body. The nuclear second-stage electric V-shaped brake valve has good sealing property, reasonable structure and simple, easy and convenient installation.

The invention relates to the technical field of chemical fiber winding devices, and discloses a chemical fiber winding machine convenient to disassemble a winding shaft. The machine comprises a base and a machine body; the machine body is mounted on the upper surface of the base through a support rod; a through groove for communicating with the internal of the machine body is formed in the frontal surface of the machine body; guide grooves are respectively formed in the top and the bottom of the inner wall of the through groove; clamping grooves are formed in the groove bottoms of the guide grooves; connecting shafts are inserted in the through grooves; and inner grooves are respectively formed in the tops and the bottoms of the connecting shafts. The chemical fiber winding machine convenient to disassemble the winding shaft is provided with the connecting shafts, the through groove, the guide grooves, springs and clamping rods; the clamping rods are extruded to shrink the springs so as to insert the connecting shafts into the through hole; when the clamping rods move to the clamping positions in the through groove along the guide grooves, the springs extend, and the clamping rods are clamped in the clamping grooves to finish installation; and during disassembling, the connecting shafts are downwards pressed to outwards push and pull to achieve the effects of convenient disassembly and convenient use.

The invention discloses a special fixture for automation equipment, which includes a fixture base, a second hydraulic rod is arranged at the middle position of the inner bottom surface of the fixture base, a fixed mounting plate is arranged on the upper end of the second hydraulic rod, and the fixed mounting plate A top plate is provided at the upper end of the fixture base, first hydraulic rods are provided on both sides inside the clamp base, and a sliding support rod is provided at one end of the first hydraulic rod close to the second hydraulic rod. The beneficial effects of the present invention are: the present invention places the workpiece on the upper surface of the top plate, and then controls the expansion and contraction of the first hydraulic rod and the second hydraulic rod through the control switch, and the side clamping plate moves to the middle to clamp both sides of the workpiece on the top plate. Tight, when the second hydraulic rod rises, it will press the upper surface of the workpiece through the upper pressing plate, and the upper end of the upper pressing plate is provided with a return spring, which can effectively prevent the upper surface of the workpiece from being fastened during the processing process. pop up.