31results about How to "Accurate pressing" patented technology

This utility model relates to a magnet assembly side-push mechanism. A jig plate is mounted on a base, and the jig plate has multiple magnet receiving slots. Each magnet receiving slot on the jig plate has a side-push vertical hole at its bottom, corresponding to the end of the magnet, which penetrates the jig plate. A side-push assembly corresponding to the jig plate is also mounted on the base. The side-push assembly includes a side-push main shaft, on which multiple side-push heads are mounted. Each side-push head has a side-push vertical plate that extends upward through the side-push vertical hole. The magnet assembly side-push mechanism of this application, by having side-push vertical holes corresponding to the ends of the magnets at the bottom of the magnet receiving slots on the jig plate, allows the side-push vertical plates on the side-push heads to pass through the side-push vertical holes from bottom to top. When the side-push main shaft moves axially, each side-push vertical plate can move with the side-push main shaft within the side-push vertical hole and abut against the end of the magnet to be assembled. This reliably and accurately pushes the magnet to be assembled into the magnet receiving slot, aligning the ends of each magnet.

The utility model provides a kind of frame pressing device, comprising: support plate and the horizontal plate for supporting furniture frame, support plate is equipped with two, and horizontal plate fixed mounting is on the upper surface of two support plates, horizontal plate side fixed mounting has mounting plate, and the lower surface of mounting plate one end is equipped with electric push rod, and the center of horizontal plate lower surface is equipped with pressing assembly, and the side of horizontal plate is equipped with first motor. By the fixed rubber block of sticking solid plate clamped on the slider both sides furniture frame anti-slip and antisense, can ensure the stable fixation of different size frame, then by electric push rod piston rod drives lower pressing plate to drop, make the triangular array convex rubber ball of lower pressing plate lower surface setting press tightly frame upper surface, exert vertical pressure, then by pressing assembly jacking frame, with lower pressing plate forms up-down counter-pressure, to complete the pressing of furniture frame leg, ensure that furniture frame's splicing part stress uniform, tightly combined, significantly improve the overall firmness of frame.

The utility model relates to the technical field of medical instruments, in particular to a button type fixing structure and a patient fixing device for radiotherapy, the fixing structure comprises a base, an insertion part and a button part, the insertion part is clamped with the base, the base is provided with an insertion groove, and the button part is arranged in the insertion groove. The side wall of the slot is provided with a sliding groove communicated with the slot and the outside of the base, the insertion part is connected with the slot in an inserted mode, the key part is connected with the sliding groove in a sliding mode, and the key part can stretch into the slot and eject the insertion part out of an inner cavity of the slot. According to the scheme of the utility model, the action of releasing the clamping between the base and the insertion part can be completed only by pressing the key part on the base during use, the insertion part can be automatically ejected out of the base, the operation is simple and convenient, the base can be mounted on the bottom plate at a position which can be seen by an operator, and the working efficiency is improved. Therefore, an operator can accurately press the key part to release the fixation between the base and the insertion part.

The utility model belongs to LED display screen technical field, concretely relates to a splicable LED display screen, including mounting seat and connecting seat, be installed between mounting seat and connecting seat hinge, the inside slide coupling of mounting seat and connecting seat has display screen, the inside slide coupling of mounting seat and connecting seat has pressure block, pressure block and display screen contact. The utility model innovatively configured pressure block, threaded rod and guide rod etc. assembly, through rotating threaded rod drive its and pressure block produce screw transmission, promote pressure block accurate compression display screen, realize the stable spacing of display screen on mounting seat and connecting seat. The design simplifies the complex positioning and fixed process in traditional splicing, need not many people cooperation or special tool auxiliary, single operation can complete module quick installation, effectively solved the problem of the complicated procedure, low efficiency when splicing LED display screen.

An installation box body is fixedly installed on an installation platform, an opening is formed in the upper portion of the installation box body, a clamping box clamped in a sliding mode is arranged on the side face of the installation box body, a positioning structure is arranged on the opposite side of the installation box body, a clamping groove for vertically clamping the particulate matter sampling head is formed in the clamping box, and the particulate matter sampling head is arranged in the clamping groove. The size of the opening is the same as the size of the clamping groove, a movable supporting table is movably mounted on the clamping box and located in the clamping groove, a cutting structure is arranged on the side wall of the mounting box and located above the clamping groove, and a downward-pressing driving device for downward pressing the particulate matter sampling head and driving the particulate matter sampling head to rotate is arranged above the clamping box; the side wall of the mounting box body is provided with a dismounting through groove which penetrates through the mounting box body and meanwhile penetrates through the clamping box on the same side to be communicated with the clamping groove, and a telescopic clamping jaw is telescopically mounted in the corresponding direction of the dismounting through groove. According to the device, the aluminum foil compression ring can be automatically peeled off after the particulate matter sampling head is clamped, so that the stable disassembly of the filter membrane is ensured, and the sampling accuracy is ensured.

The utility model discloses a multi-angle plug-in type wiring terminal, which comprises a base, an angle adjusting assembly is arranged on the base, the angle adjusting assembly comprises two mounting seats, an adjusting rod, a rotating plate, a fixing hole and a stabilizing plate, the mounting seats are arranged on the base, the adjusting rod is rotatably connected to the mounting seats, the fixing hole is arranged on the adjusting rod, and the stabilizing plate is arranged on the adjusting rod. The adjusting rod penetrates through one of the mounting seats, the rotating plate is connected to one end of the adjusting rod, the fixing holes are uniformly formed in the rotating plate, the stabilizing plate is mounted at one end of the mounting seat, a plugging assembly is arranged on the base, and the plugging assembly comprises an adjusting seat, a fixing terminal and a push-pull plate. The adjusting seats are uniformly mounted on the adjusting rod, the fixed terminals are connected to the bottoms of the adjusting seats, and the push-pull plate is slidably connected to the inner sides of the fixed terminals, so that the technical problem that the structural design of an existing wiring terminal is relatively fixed from the aspect of limitation of angle adjustment mentioned in the background technology is solved.

This invention discloses a production equipment and method for suspended wire clamps with uniform gripping force, belonging to the field of wire clamp manufacturing technology. The production equipment for suspended wire clamps with uniform gripping force includes a U-shaped frame, and further includes: a conveying unit, which has two sets and is respectively arranged on both sides of the U-shaped frame; a drilling unit, which is movable on the upper side of the U-shaped frame, and includes a positioning component for positioning the hull and a first drilling component and a second drilling component for drilling holes on the bottom and sides of the hull; and a reciprocating conveying mechanism, which is arranged on one side of the U-shaped frame and is used to convey the drilling unit and move it back and forth along the length of the U-shaped frame. This invention, by setting multiple independently moving drilling units in a circular motion, achieves tracking and following processing of the hull workpiece on a continuous conveyor line, solving the problem of production line downtime, and realizing efficient continuous processing of suspended wire clamp hulls while ensuring hole position accuracy.

The application relates to the technical field of lamination equipment, in particular to a lamination machine which comprises interval arranged lamination platforms and an array platform; the lamination platform has a horizontal first bearing surface, a first assembly sheet is placed on the first bearing surface; a first positioning pin is inserted on the lamination platform; the first positioning pin is driven to move along the vertical direction and can be inserted into a first positioning hole on the first assembly sheet; the array platform has a horizontal second bearing surface, a second assembly sheet is placed on the second bearing surface; a transfer mechanism is used to place the second assembly sheet on the first assembly sheet and move downward to generate a pressing force so that the first assembly sheet and the second assembly sheet are pressed together. The application can realize accurate alignment of the first assembly sheet and the second assembly sheet, avoid deviation of the two assembly sheets during lamination and improve the production yield.

The utility model discloses a kind of hub dieless spinning clamps, comprising: chuck disc body, driving assembly and clamping assembly;Chuck disc body includes disc seat and disc cover;Driving assembly includes connecting shaft, centering drive seat, drive spring and pull-press plate, connecting shaft extends to installation groove through first through-hole, centering drive seat is located at disc cover axis, the bottom of centering drive seat extends to installation groove and is drivenly connected with connecting shaft, drive spring is located between centering drive seat and connecting shaft, pull-press plate is located in installation groove, and pull-press plate is drivenly connected with connecting shaft;Clamping assembly includes centering clamp jaw mechanism and pressure clamping jaw mechanism, centering clamp jaw mechanism is drivenly connected with centering drive seat, and pressure clamping jaw mechanism includes positioning sleeve, pressure jaw pull rod, limit screw and pressure clamping finger;The present scheme has the characteristics of high centering accuracy, and can realize automatic processing.

The utility model discloses a machine shell process plug press-fitting machine, and belongs to the technical field of press-fitting machines, the press-fitting machine comprises a shell and a workpiece, an operation table is horizontally and slidably installed in the shell, a support is fixedly installed at the top end of the operation table, an operation board is rotatably installed on one side of the support, and a driving assembly is installed on one side of the operation board. A positioning column is fixedly installed on the other side of the operation board, the workpiece is connected to the positioning column in a sleeving mode, a fixing assembly matched with the workpiece is arranged on one side of the operation board, a second air cylinder is fixedly installed at the top end of the shell, and the output end of the second air cylinder penetrates through the top end of the shell and is fixedly provided with a pressing head. The press-fitting machine can achieve accurate positioning and efficient clamping, multiple air cylinders are flexibly adjusted, materials are convenient to carry, and the production efficiency and the product quality can be improved.

The utility model relates to the technical field of liquid crystal display screen assembling equipment, in particular to a liquid crystal display screen plodder. The utility model provides a liquid crystal display screen plodder with high versatility, which comprises a mounting plate and the like, the mounting plate is fixedly connected with paired conveying belts and paired electric sliding rails, a sliding frame is connected between the paired electric sliding rails in a sliding manner, the sliding frame is connected with paired pressing frames in a sliding manner, the sliding frame is fixedly connected with paired guide rails, and the paired guide rails are connected with the paired pressing frames in a sliding manner. The guide rail is connected with a pressing plate in a sliding mode, the sliding frame is connected with a two-way screw in a rotating mode, the two-way screw is in threaded connection with paired push blocks, the pressing frame is fixedly connected with paired inclined plates, and the pressing plate is fixedly connected with paired contact rods. By means of the components such as the two-way screw and the limiting plate, adaptive adjustment can be carried out according to liquid crystal display screens which need to be assembled and have different sizes, and therefore it is guaranteed that the pressing frame and the pressing plate can accurately press the liquid crystal display screens and the frame, and the pressing effect and the universality of the liquid crystal display screen plodder are improved.

The invention discloses a module testing machine for simulating heating and heat dissipation of a new energy vehicle-mounted circuit board, and relates to the technical field of heat dissipation module testing, and the module testing machine comprises a machine body, the top of the machine body is fixedly connected with a stand column, the top of the stand column is provided with a pressure head assembly, and the top of the machine body is fixedly connected with a test bed. A positioning assembly is arranged outside the test bed, a mold assembly is placed at the top of the test bed, the mold assembly comprises a base plate, and the base plate is placed at the top of the test bed. According to the testing machine for simulating the heating and heat dissipation module of the new energy vehicle-mounted circuit board, a positioning structure can be quickly customized through 3D printing on the substrate according to a heat dissipation assembly structure, a light high-strength plastic material is adopted, a modular heat-resistant block is inserted into a substrate clamping groove, and the testing machine is made of high-temperature-resistant ceramic, can be repeatedly disassembled and assembled and can be reused across the substrate; the temperature sensor monitors the temperature of the simulated heat source in real time, low-cost customization, efficient resource utilization and accurate temperature monitoring are achieved, and stable operation of equipment is guaranteed.

The utility model relates to jig field discloses a kind of display module processing is attached to jig, including base, the base top is fixedly connected with box, recess is provided in the box inside, gear is rotatably connected in the recess inside, gear top is fixedly connected with round shaft, electric push rod two is fixedly connected in the recess inside, the electric push rod two output end is fixedly connected with abutment plate, the abutment plate outside is fixedly connected with rack, round shaft top is fixedly connected with linkage rod, the both ends of linkage rod are fixedly connected with platform, the base top is fixedly connected with support, the support inside is fixedly connected with two slide columns. In the utility model, by starting electric push rod two and promoting abutment plate to drive rack to move and further drive gear rotation, gear rotation drives round shaft to rotate, round shaft rotation drives two platforms to rotate, the effect that two work platforms can be alternately used is realized.

This application discloses an engine shock absorber bracket press-fitting device, belonging to the field of automotive parts assembly technology. It includes an upper and lower template connected to a press. An upper mounting seat is provided on the bottom surface of the upper template, and rotating pressure head assemblies are provided on both sides of the upper mounting seat. The rotating pressure head assemblies press the housing onto the upper mounting seat. The top surface of the lower template is provided with a lower mounting seat, a slider, and a slide rail. The slider is connected to a power cylinder and is movably mounted on the slide rail. A positioning post is installed on the top surface of the slider. The main spring is placed on the lower mounting seat, and the positioning post passes through the main spring. The power cylinder moves the positioning post to compress the main spring. The press drives the upper template to press down, pressing the housing onto the main spring. Pre-compression of the main spring before pressing the housing avoids wear on the rubber parts of the main spring caused by direct pressing, thus improving the press-fitting quality and production efficiency of the engine shock absorber bracket.

The utility model discloses a kind of hub dieless spinning equipment, comprising: cabin, hub spinning clamp and spinning device;Hub spinning clamp is located in cabin, spinning device is located in hub spinning clamp periphery side and / or above, for spinning to hub;Hub spinning clamp includes chuck disc body, driving assembly and clamping assembly;Driving assembly includes connecting shaft, centering drive seat, driving spring and pull-press plate, centering drive seat is located at disc cover axis, the bottom of centering drive seat extends into mounting groove and is drivenly connected with connecting shaft, driving spring is located between centering drive seat and connecting shaft, pull-press plate is located in mounting groove, pull-press plate is drivenly connected with connecting shaft;Clamping assembly includes centering clamp jaw mechanism and pressing clamp jaw mechanism, centering clamp jaw mechanism is drivenly connected with centering drive seat, pressing clamp jaw mechanism includes positioning sleeve, press jaw pull rod, limit screw and pressing clamp finger;The present scheme has the characteristics of high centering accuracy, and can realize automatic processing.

The utility model discloses a kind of segmented conveying devices for packaging bag processing, including first workstation and second workstation, the lower end of first workstation and second workstation is symmetrically provided with bracket, transmission mechanism is all equipped on first workstation and second workstation, the transmission mechanism includes the drive motor fixed in the lower end of first workstation, the output shaft end of drive motor is fixedly connected with driving wheel, transmission shaft and fixed shaft are equipped in the first workstation, transmission roller is all equipped on transmission shaft and fixed shaft. The segmented conveying device for packaging bag processing works cooperatively through multiple conveyor belt assemblies, the conveying process of packaging bag is divided into multiple stages, accurately presses down or lifts through height adjustment control, ensure that packaging bag can be smoothly, without error From one conveyor belt to next conveyor belt, avoid that packaging bag appears wrinkle and inclination in conveying process, greatly improve the accuracy and flexibility of conveying.

The utility model relates to the technical field of oil seal production and assembly, and concretely relates to a small -size oil seal spring hanging tool. Including spring hanging rod, fixedly installed sleeve pipe in spring hanging rod lower extreme, the positioning rod that can telescopic installation in the sleeve pipe, the lower extreme of sleeve pipe is provided with the spring ring that fits on the positioning rod, the positioning rod is cylindrical structure, the spring ring is by the annular structure of magnetic conductive material preparation, inner diameter adaptation positioning rod, the outside of spring ring is equipped with the magnetic ring with magnetic attraction. The spring hanging tool utilizes magnetic attraction and adsorbs oil seal spring in the lower extreme of positioning rod, and the lower extreme of positioning rod does not need to set down concave spring groove, and oil seal spring does not need to install on the positioning rod through spring groove, and there is almost no friction between oil seal spring and positioning rod when installing oil seal spring with spring ring, and its structure is compact, easy to operate, long in service life, can realize oil seal spring fast positioning and accurate press -fit, improves the assembly efficiency and yield of small -size oil seal.

The utility model discloses a multi-station automatic hot melt glue spraying device which comprises a rack, a conveying assembly, a glue spraying assembly, a first pressing assembly and a second pressing assembly, the conveying assembly is horizontally arranged on the rack, and a glue spraying station, a first pressing station and a second pressing station are sequentially arranged on a conveying path of the conveying assembly; the conveying assembly is configured to sequentially convey egg boxes to be subjected to glue spraying to all stations, the glue spraying assembly is configured to spray glue to lower cover connecting parts, the first pressing assembly comprises a first driving part, a first pressing part and a cooling part, and the first driving part is configured to drive the first pressing part to move in a reciprocating mode so as to drive the cooling part to move; and the second pressing assembly is configured to carry out secondary pressing on the connecting part on the second pressing station. According to the multi-station automatic hot melt glue spraying device, the egg boxes are sequentially conveyed to all stations through the conveying assembly, the automatic process of glue spraying, primary pressing and secondary pressing is achieved, and the production efficiency is improved.

This utility model relates to the field of bending equipment technology, specifically disclosing a sheet metal bending device, including a table mechanism. A bending pushing mechanism is arranged in the middle of the table mechanism, and a bending shaping mechanism is arranged on one side of the table mechanism. The table mechanism includes a base, an operating table, and a sheet metal body. This solution uses cylinder one to adjust the height of the operating table to adapt to sheet metal bodies of different thicknesses, ensuring a tight fit with the bending mold. Cylinder two drives a limiting plate, and cylinder three controls a pressure plate, which work together to achieve precise positioning and clamping of the sheet metal before bending, effectively preventing offset or slippage during the bending process. The guide rail slide and cylinder four in the bending pushing mechanism can adjust the horizontal and vertical positions of the pushing bending plate, avoiding uneven local force during bending and ensuring the uniformity of the bent edge. The bending conveying limiting block is quickly limited by cylinder five, further ensuring the accuracy of the bending position, thereby significantly improving bending precision and finished product consistency.

The utility model discloses a valve rubber abrasion performance testing device which comprises a testing frame table and a plurality of valve seat conical workpieces, valve raw rubber is fixedly sleeved on the valve seat conical workpieces, and a damage testing mechanism is arranged on the top in the testing frame table. According to the utility model, under the interaction of the testing frame table, the valve seat conical workpiece, the valve raw rubber sheet and the damage testing mechanism, the accurate pressing and positioning of a plurality of groups of valve raw rubber sheet samples can be simultaneously realized under the driving of the servo motor, the testing efficiency is obviously improved, and the driving motor in the damage testing mechanism is matched with a multi-claw embedding block, so that the testing efficiency is improved. The actual motion state of a conical workpiece of a valve seat can be accurately simulated, a dynamic friction test is realized in combination with a friction ring block, the reverse movement design of a compaction plate and a material storage block ensures that pressure loading and friction test are synchronously carried out, a composite load environment in an actual working condition is truly restored, and the test efficiency is improved. The problems that a traditional device is single in testing condition and disjointed with reality are effectively solved, and the accuracy and reliability of a testing result are improved.

This invention provides a pressure-stabilizing stamping die device for processing automotive parts, belonging to the technical field of automotive parts processing molds. The device includes an upper die plate, a lower die plate, a bottom support plate, an upper die assembly, and a lower punch assembly. A first nitrogen spring, a second nitrogen spring, and a third nitrogen spring are fixed on the bottom support plate. The first nitrogen spring is located at both ends of the bottom support plate, with its upper end connected to both ends of the upper die plate. The upper end of the second nitrogen spring passes through a drawing and pressing plate and abuts against a wear-resistant block. The first and second nitrogen springs are connected by an air pipe. The upper end of the third nitrogen spring is connected to the lower end of the drawing and pressing plate. Connecting the first and second nitrogen springs through the air pipe enables coordinated adjustment of the stamping pressure. When the downward pressure of the upper die plate is too high, nitrogen can flow between the two nitrogen springs, reducing the pressure of the corner pressure plate in the reverse direction, effectively preventing the material from failing to flow into the cavity due to excessive pressure.

The utility model discloses a kind of H-shaped steel group welding straightening integrated machine with pressing device, belong to H-shaped steel group welding straightening integrated machine technical field, comprising: support platform, truss is provided on it;Multiple first support wheel, it is arranged in rectangular array and hinged on the support platform;Multiple second support wheel, it is arranged in rectangular array and hinged on the truss;Welder, it is fixedly installed on the truss;The utility model is through multiple first support wheel and is located the opposite ends of horizontal steel plate on support platform, the movement of horizontal steel plate has guiding support effect, multiple second support wheel and are located the opposite sides of vertical steel plate, the movement of vertical steel plate has guiding support effect, pressing mechanism is under the action of first electric cylinder and initially presses vertical steel plate, and accurate pressing and deviation correction are carried out to vertical steel plate, even if the span of vertical steel plate is big, the limiting of vertical steel plate can be stabilized, to ensure the precision of welding.

The utility model discloses a panel positioning device, which relates to the technical field of positioning, and comprises a supporting leg plate, the top of the supporting leg plate is fixedly connected with an operating platform, the bottom of the operating platform is provided with an automatic clamping and positioning assembly, the automatic clamping and positioning assembly comprises an L-shaped rod, one end of the L-shaped rod is fixedly connected to the bottom of the operating platform, and the other end of the L-shaped rod is fixedly connected with the operating platform. According to the automatic clamping and positioning assembly, the motor, the gear, the clamping plate and other assemblies in the automatic clamping and positioning assembly are matched with one another, meshing of the first rack, the second rack and the gear is achieved, it can be guaranteed that a panel always keeps a fixed path and a fixed angle in the operation process, errors caused by manual operation are reduced, and the working efficiency is improved. According to the automatic panel clamping and fixing device, the accurate position of the panel is ensured, the positioning process of the panel is automatically completed through the device, the requirement for manual intervention is reduced, clamping and fixing of the panel are automatically completed through motor driving, the working efficiency is improved, and the complexity of manual operation is reduced.

The utility model discloses steam generator testing equipment, including base, protective cover and water tank, and the base top fixed mounting has test platform, and the test platform top two sides are provided with first test station and second test station respectively, and the protective cover fixed mounting is in test platform top, and the protective cover top fixed mounting has roof, and the water tank fixed mounting is in roof top, and first test station and second test station are installed electric heating type steam generator and intelligent liquid level control steam generator respectively, and the protective cover outside is provided with safety grating, and the test platform front end is provided with double start button, emergency stop button and reset button. The utility model can realize the double position parallel test of electric heating type and intelligent liquid level control type steam generator, and guarantees the test water source cleanliness through the hierarchical filtration water supply system, and combines pneumatic clamp, turnover mechanism and safety interlock design, and significantly improves the test efficiency, accuracy and operation safety.

This utility model discloses a cutting device for food packaging box production, belonging to the field of food packaging box production technology. The utility model includes a support rod, a worktable assembly mounted on the top of the support rod, a connecting rod fixedly connected to one side of the support rod, a slide rail mounted on the connecting rod, a support frame slidably fitted on the top surface of the slide rail, a hydraulic rod mounted on one side of the support frame, and a saw blade mounted on the top of the support frame. The worktable assembly includes a table plate, a through groove opened on the top surface of the table plate, sliding grooves on both sides of the through groove, and a limiting component mounted on the top surface of the table plate. The limiting component includes a baffle, an adjustment groove on one side of the baffle, an electric push rod mounted on the upper part of the baffle, and a connecting frame mounted on the top of the electric push rod. Through the cooperation of the support rod, the worktable assembly, and the limiting component, the height of the worktable can be flexibly adjusted by the support rod to adapt to different cutting needs. The electric push rod, in conjunction with the hydraulic cylinder, achieves precise positioning and firm clamping of the packaging box material, reducing cutting deviation.

This utility model discloses a spray tray cleaning device, including a base plate, multiple support columns disposed on the upper side of the base plate, a working plate disposed on the upper side of the support columns, a bracket disposed on the upper side of the working plate, a top plate disposed on the bracket, a downward driving device with a piston rod disposed on the upper side of the top plate, a connecting plate disposed on the lower end of the piston rod, a clamping sleeve disposed on the lower side of the connecting plate, a lower sleeve disposed on the upper side of the working plate for mounting the spray tray, and a water circulation assembly disposed on the upper side of the base plate. The water circulation assembly is connected to the clamping sleeve and the lower sleeve. The cleaning device of this utility model uses the downward driving device to drive the clamping sleeve to descend, which cooperates with the lower sleeve to limit the spray tray. The water circulation assembly cleans the spray tray, preventing water from splashing onto the work area, reducing pollution, improving production safety, and reducing the labor intensity of workers.

The utility model discloses a kind of watch small-sized parts compression fixer, including the locating adjusting assembly being installed in compression ware body interior, the detachable assembly is threadedly installed in the top of compression ware body, the locating adjusting assembly includes adjusting groove, directional rod is fixed in the adjusting groove, support column is slidably connected on the directional rod, screw rod is rotatably connected on the side surface of support column, adjusting knob is fixed in the other end of screw rod, by setting locating adjusting assembly, the position situation of the part that can be compressed according to actual needs is carried out, the axial center of corresponding clamping seat is adjusted, so that the axial center of the part to be compressed is coaxial with the axial center of compression rod, so that the axial center of the part to be compressed can be avoided in compression process with the axial center of compression rod not in coaxial, so that the compression of part is more accurate, and it can also prevent the compression damage to other parts.

The invention discloses a switch, and relates to the technical field of switches, the switch comprises an upper shell and a lower shell arranged at the lower end of the upper shell, the upper shell and the lower shell are tightly connected to form an internal cavity, the upper shell is provided with a first heat dissipation assembly, and the lower shell is provided with a second heat dissipation assembly; a circuit board assembly is arranged in the internal cavity; a first heating device and a second heating device are arranged in the inner cavity, and the first heating device is electrically connected with the circuit board assembly and is thermally coupled with the first heat dissipation assembly; the second heating device is electrically connected with the circuit board assembly and thermally coupled with the second heat dissipation assembly, and heat dissipation is achieved through the second heat dissipation assembly. The first region and the second region are isolated from each other in the interior chamber by a physical space. The main heating source is arranged in the two cavities with physical isolation, and the independent heat dissipation paths integrally formed with the shell are configured for the two cavities respectively, so that partitioned heat dissipation is realized, and long-term temperature stability of the equipment under high load is ensured.

The utility model relates to a hold-down mechanism for a paper cutting machine, which comprises a workbench, a main frame, a cutter assembly and a hold-down assembly, the main frame is arranged on the workbench, the cutter assembly is arranged on the main frame, the hold-down assembly is arranged on the main frame, and the hold-down assembly comprises a miniature air pump, an air delivery pipe, a connecting plate and an elastic air bag. The connecting plate is fixedly connected to the main frame, the micro air pump is fixed to the connecting plate, the air bag is connected to the lower portion of the connecting plate, the two ends of the air conveying pipe are connected with the micro air pump and the air bag respectively, and when paper is fed to the position below the knife rest under the action of the feeding mechanism, the micro air pump inflates the air bag through the air conveying pipe to inflate the air bag; according to the mode, the paper is fixed through flexible contact of the air bag, hard extrusion of a traditional paper pressing and fixing plate on the paper is avoided, the paper can be effectively prevented from being deformed or damaged due to sudden large pressure, and the integrity and appearance quality of the paper are better protected.