415results about How to "Strong clamping force" patented technology

The invention relates to the technical field of automobile metal part drilling machining, in particular to an automobile steering knuckle drilling pre-machining machine tool. The automobile steering knuckle machining equipment comprises an installation machine base, a drilling device, a tool clamp and a control system, the drilling device and the tool clamp are installed on the installation machine base and are important components of the equipment, and preprocessing of an automobile steering knuckle is achieved; the control system comprises a hydraulic system, a pneumatic control system, a cutting fluid circulating system, a lubricating system, a chip removal system and an electric control system. The drilling device, the tool clamp, the material pressing device, the control device and other functional components are efficiently matched, the efficiency of automobile steering knuckle drilling pre-machining is remarkably improved, through precise movement of the drilling device, stable fixation of the tool clamp and the material pressing device and continuous lubrication of the lubricating device, high precision of the machining process is guaranteed, and the machining efficiency is improved. The problems of workpiece machining defects, equipment overheating and the like are reduced, and potential safety hazards are reduced.

The utility model discloses a cable tension testing machine which comprises a fixed base, a scale groove, a stretching assembly, a first connecting frame, a second connecting frame, a tension detection assembly and a clamping ring assembly. The scale groove is located at the top end of the fixed base, the stretching assembly is located on one side of the fixed base, the first connecting frame is located on the outer side of the stretching assembly, the second connecting frame is located on the inner side of the fixed base, the tension detection assembly is located on one side of the second connecting frame, and the clamping ring assembly is located at the top ends of the first connecting frame and the second connecting frame. Compared with the prior art, the cable clamping device has the advantages that a cable can be uniformly and annularly clamped when tension is detected, so that the stress of the cable is more uniform, the clamping is more stable, and the cable is effectively prevented from loosening.

The five-axis numerical control machine tool comprises an electric push rod and a machine box, a sealing plate arranged on the machine box rotatably exposes an internal machining space, the bottom of the machine box communicates with a clamping assembly, the bottom of an inner cavity of the machine box is fixedly connected with a protection assembly, and the top of the protection assembly is slidably connected with an auxiliary frame. A cooling assembly is fixedly connected to the position, away from the protection assembly, of the machine box. According to the five-axis numerical control machine tool for workpiece milling, the situation that the temperature of a milling device and the temperature of a workpiece are too high, so that use of equipment is affected is avoided, and therefore the situation that the surface of the workpiece is scratched due to the fact that chippings are accumulated on the clamping assembly is avoided, the machining precision of the milling device is improved, and the workpiece machining difficulty is reduced; and the influence of circulation of the cooling liquid on cooling is avoided, the workpiece machining integrity is ensured, and chippings generated by the workpiece and the cooling liquid are collected through the clamping assembly.

The invention relates to the technical field of medical apparatuses and instruments, and discloses a gastroenterology department endoscope auxiliary tractor which comprises a shell, three limiting rings are fixedly connected to the inner wall of the shell, a grip is fixedly connected to the side wall of the shell, a rubber expansion block is fixedly connected to the outer wall of the grip, and a user presses an arc-surface extrusion plate to descend, so that the rubber expansion block is expanded, and the rubber expansion block is expanded. The spring plate and the bevel friction block are driven to descend, the bevel friction block is extruded, the spring plate retracts into the cambered surface extrusion plate, meanwhile, when the cambered surface extrusion plate descends, the cambered surface of the bottom of the cambered surface extrusion plate can make contact with the surface of the ball soft rod, the ball soft rod is extruded to move towards the direction of the fixing ring, the ball soft rod can extrude the clamping block, and the clamping block rotates; according to the clamping device, the clamping force can be controlled by the pressing depth of the cambered surface extrusion plate, it is ensured that the diseased region is accurately clamped, and the clamping force can be rapidly adjusted only by pressing the cambered surface extrusion plate or extruding the connecting plate.

The invention relates to the technical field of composite turn-milling machine tools, and discloses a numerical control composite turn-milling machine tool and a turn-milling method for precision part machining.The numerical control composite turn-milling machine tool comprises a device body, a sliding cover plate is slidably mounted on the outer portion of the device body, a machining bin is formed in the device body, and a milling mechanism is mounted in the machining bin; a movable sliding rail is installed in the machining bin, a turning mechanism is installed on the movable sliding rail in a sliding mode, and a driving mechanism is installed on the movable sliding rail. When the driving mechanism drives all the fixed clamping jaws to move towards the center of the clamp rotating disc, the fixed clamping jaws can clamp a part, and after the part is clamped, the limiting rotating disc continues to rotate, a buffer spring can be compressed, so that the clamping force of the fixed clamping jaws on the part is relieved; and when the internal structure of the part is changed in the machining process, the part can be better clamped through springback of the buffer spring, and the part is prevented from being disengaged from the clamp due to external deformation.

The invention discloses a textile fabric air permeability detection device, and relates to the technical field of textile processing, the textile fabric air permeability detection device comprises a rack, a connecting plate is fixedly connected to the side of the upper surface of the rack, rail strips are symmetrically mounted at the two ends of the connecting plate, the rail strips are arranged to limit a clamping device, and the clamping device can be clamped by the rail strips. The clamping devices are slidably connected to the inner cavities of the track strips, the clamping devices are arranged, the cloth can be clamped, the two ends of the cloth can be relatively far away from each other after the cloth is clamped, the cloth can be flattened, and the cloth can be flattened. The clamping device is arranged at the end of the cloth, the clamping force on the cloth is increased in the process that the end is far away, the cloth is prevented from wrinkling to influence the air tightness during air permeability detection, and the clamping device comprises a sliding block to achieve the effect of preventing the cloth from wrinkling and unevenness to influence the air permeability detection accuracy.

The embodiment of the invention discloses a surgical instrument control method and device, electronic equipment, a storage medium and a product. The method comprises the steps that under the condition that it is detected that driving equipment of the endoscopic surgical robot is in an idle state, a first closing control instruction is sent to the driving equipment so that a clamp on a surgical instrument can be in a closed state; determining the current movement length generated by a steel wire rope corresponding to the surgical instrument in the process of executing the first closing control instruction by the driving equipment; determining a compensation length corresponding to the steel wire rope based on the current movement length and a preset standard movement length corresponding to the steel wire rope in a closed state, so as to control the surgical instrument based on the compensation length in the actual surgical operation of the endoscopic surgical robot; wherein the standard movement length is the movement length generated by the steel wire rope after the clamp is controlled to be adjusted to be in a closed state when the steel wire rope is in a standard state and the driving equipment is in an idle state.

The invention discloses a double-butterfly-valve sterile medicine transfer system and a sterile medicine transfer method, and relates to the technical field of pharmacy. The device comprises a turnover medicine storage tank, a driving butterfly valve, a driven butterfly valve, a powder storage tank and a sterile liquid medicine storage bag, a discharging port of the turnover medicine storage tank is connected with the driving butterfly valve through a first connecting piece, and the driving butterfly valve is connected with the driven butterfly valve through a second connecting piece; the passive butterfly valve is connected with a feeding port of a powder storage tank through a third connecting piece, a first diaphragm valve is arranged at a discharging port of the powder storage tank, and the discharging port of the powder storage tank is connected with a sterile liquid medicine storage bag; by adopting the design of double butterfly valves, sterile connection is established between the turnover medicine storage tank and the powder storage tank, the reliability of hoop connection is high, the structure is simple, the operation complexity is low, the universality is high, the flexibility is high, and the cost is low.

The present invention provides an explosion-proof battery pressure resistance detection device, comprising a workbench, an explosion-proof box is arranged on the workbench, a clamp is arranged in the explosion-proof box, the clamp is elastic, and a clamp is arranged inside the clamp, the clamp is used to clamp a battery shell, when the air pressure inside the battery shell gradually increases, the battery shell begins to gradually expand and deform, and the clamp deforms along with the battery shell, the battery shell part clamped by the clamp is not fixed, but expands and deforms, thereby avoiding the problem of inaccurate pressure resistance detection of the battery shell caused by the fixed position of the battery shell part clamped by the clamp, and at the same time, the clamping force of the clamp increases with the gradual increase of the air pressure inside, thereby avoiding the phenomenon of the battery shell detaching from the clamp during the detection process.

The utility model discloses a mobile phone telescopic support, which aims at solving the technical problem that a mobile phone shakes in a mobile phone support in use due to the fact that the mobile phone support in the prior art is not provided with a special locking mechanism, and comprises a shell, a rotating piece, an upper telescopic piece, a lower telescopic piece and a locking assembly are arranged in the shell, an upper rack is arranged on the upper telescopic piece, and a lower rack is arranged on the lower telescopic piece. The upper telescopic piece is provided with an upper rack, the lower telescopic piece is provided with a lower rack, the upper rack and the lower rack are arranged on the two sides of the rotating piece respectively and meshed with the rotating piece at the same time, the locking assembly comprises an on-off key, a locking elastic piece and a locking plate, and the locking plate is provided with clamping teeth matched with the upper rack. The locking plate gets close to the upper rack and is clamped in the upper rack by pressing the on-off key, so that the positions of the upper telescopic piece and the lower telescopic piece on the shell are locked; and when the switch key is reset, the locking plate stretches out and draws back to the upper telescopic piece under the action of the locking elastic piece, and the function that the upper rack or the lower rack is unlocked by the clamping teeth is achieved.

The utility model discloses a seedling taking device for crop seedling transplantation. The seedling taking device comprises a fixed cylinder and a seedling taking mechanism, the upper end of the fixing cylinder is fixedly connected with a fixing frame, the top end of the fixing frame is fixedly connected with a handle, and the outer surface of the handle is provided with uniformly distributed anti-skid grains; the seedling taking mechanism comprises rotating grooves, inclined plane pressing blocks and clamping plates, the rotating grooves are formed in the left side and the right side of the bottom end of the fixed cylinder, the inclined plane pressing blocks are rotationally connected to the interiors of the rotating grooves through pin shafts, the clamping plates are fixedly connected to the bottom ends of the inclined plane pressing blocks, and the seedling taking mechanism further comprises guide sliding grooves, sliding blocks and extrusion columns; according to the crop seedling transplanting and taking device, the stability and accuracy of the clamping process can be guaranteed, crop seedlings are protected against damage, meanwhile, the labor intensity of operators can be relieved through automation, the labor intensity of the operators is reduced, and the crop seedling transplanting and taking device is convenient to use and high in practicability. The operation comfort and safety are improved, and the labor cost is reduced.

The utility model relates to the technical field of panel furniture processing, in particular to a cutting machine for panel furniture production, which comprises a processing base, a portal frame, a moving seat, a lifting seat and an adjusting component. Two supporting plates are horizontally arranged on the two sides of the machining base correspondingly, and each supporting plate is provided with a first sliding rail. The portal frame is arranged above the machining base and slidably arranged on the two first sliding rails, and a second sliding rail is arranged on the portal frame; the moving seat is arranged on the second sliding rail and slides along the second sliding rail under the action of the driving assembly, and a first hydraulic cylinder is arranged on the moving seat; the lifting seat is arranged above the machining base, a connecting shaft vertically arranged at the upper end of the lifting seat is connected with a rotating shaft of the first hydraulic cylinder, a cutting knife is arranged below the lifting seat, and a fixing assembly is arranged on the lifting seat on one side of the cutting knife; the adjusting assembly is arranged on the moving seat, connected with the connecting shaft and used for driving the connecting shaft to rotate. The cutting device has the advantages of high cutting efficiency, good finished product quality and the like.

The invention relates to the technical field of curtain walls, and discloses a multifunctional green assembly type curtain wall which comprises a window frame, a glass plate is arranged in the window frame, an upper pressing assembly is arranged in the window frame and located on the top of the glass plate, and clamping assemblies are arranged in the window frame and located on the left side and the right side of the glass plate. A lower supporting assembly is arranged in the window frame and located at the bottom of the glass plate, and connecting assemblies are arranged on the left side and the right side of the back of the window frame. The bolt can slide along the first X-axis groove and the second X-axis groove, so that the corner connector can move along the X axis relative to the supporting table and move front and back relative to the bolt, the corner connector can move along the Y axis relative to the supporting table, and the corner connector can move up and down along the Z axis by rotating the threaded rod. When the groove-shaped support is installed in advance, the requirement for the accuracy of the installation position of the groove-shaped support is not high, the groove-shaped support can be installed in the early stage conveniently, the curtain wall can be installed conveniently and rapidly, and the installation efficiency is guaranteed.

The utility model discloses a high-stability polycrystalline silicon processing graphite clamping device which comprises a base, a clamping cap and a plurality of clamping petals, an electrode slot is formed in the bottom of the base, and a plurality of radial limiting blocks are arranged at the top end of the base; the clamping cap comprises a top plate and a circumferential plate, the top plate is provided with a top through hole, the clamping petal comprises a bottom block and a clamping block, and the bottom block is provided with a limiting sliding groove matched with the limiting block. According to the graphite clamping device, the number of the clamping petals is larger, so that the contact surface of the silicon core surrounded by the multiple clamping petals and the silicon core is more uniform, the clamping effect on the silicon core is better, and due to limiting of the limiting blocks, the silicon core is more uniform and stable in clamping force. The inverted-frustum-shaped surfaces at the top ends of the clamping petals are spliced into a complete inverted-frustum-shaped groove, so that silicon can be deposited in the inverted-frustum-shaped groove during deposition, and the bottom end of a silicon rod is more stably connected with the clamping device during growth of the silicon rod.

The utility model discloses an automatic assembly device of anastomat sleeve, including processing platform, the both sides symmetry of processing platform top is equipped with moving frame, two moving frame top all are equipped with limit component, the utility model has the beneficial effect that through the cooperation of external spring type telescopic link in limit component and rubber resistance block, can provide stable clamping force, can also adapt to different specifications sleeve, combines telescopic guide rod, slide bar etc.

The utility model relates to cable protection field especially relates to a kind of cable protection pipe flattening strength testing device, including workbench, mounting bracket, motor, shaft sleeve, screw rod and connecting plate, workbench top is provided with mounting bracket, the motor with output shaft downwards is installed in mounting bracket top, mounting bracket upper side portion is equipped with reinforcing plate, reinforcing plate middle part is rotatably connected with shaft sleeve, shaft sleeve is connected with the output shaft of motor, shaft sleeve inside is rotatably connected with screw rod, screw rod bottom is provided with connecting plate, mounting bracket rear side portion is equipped with stable guide rail. Screw rod mechanism driven by motor is converted to linear motion by rotating motion through shaft sleeve, cooperate with the rigid constraint of stable guide rail and guide block, ensure that pressing plate is vertically pressed without deviation, eliminate test data error;Dial gauge is directly monitored by pulling rope pressing plate displacement, form high-precision deformation to pressure curve, provide original data benchmark for evaluating the compression resistance of protection pipe.

This invention relates to the field of automotive parts loading and unloading equipment technology, specifically to an automotive parts loading and unloading robotic workstation, including a frame, a conveying device, and a robotic arm module. The conveying device has a sorting module, and the robotic arm module includes a robotic arm body and a picking module. The sorting module has mounting seats on both sides, on which first and second baffles rotate synchronously in opposite directions, allowing one part to be released at a time. The picking module includes a picking rack and paired gripping modules, with the gripping body equipped with a vacuum adsorption plate, using a dual mechanism of mechanical gripping and vacuum adsorption to pick up parts. This invention solves the problems of insufficient sorting accuracy and unstable picking in existing workstations, improves the reliability of sorting and picking, adapts to batch production cycles, reduces parts damage rates, has a reasonable structure, a high degree of automation, can be adapted to various specifications of automotive parts, and reduces manual labor intensity.

The invention discloses an indoor bicycle parking device, which comprises a horizontal pulley track, a front tire and a rear tire, the first clamping mechanism is arranged on the horizontal pulley track in a sliding manner and is used for clamping a rear wheel of the bicycle; the vertical pulley track is vertically connected to one end of the horizontal pulley track and is used for limiting a front wheel of the bicycle; the second clamping mechanism is arranged on the vertical pulley track in a sliding mode and used for clamping a front wheel of the bicycle; each of the first clamping mechanism and the second clamping mechanism comprises two clamping jaws and a clamping driving device used for driving the two clamping jaws to perform butt clamping action, and the clamping jaws are of arc-shaped rod structures and are used for being attached to the inner side face of a tire rim; the front wheel and the rear wheel are stably fixed through the synergistic effect of the second clamping mechanism and the first clamping mechanism, and deviation and shaking of the wheels in the bicycle lifting process are prevented; and the clamping jaws of the arc-shaped rod structures can be matched with the shape of a bicycle hub, so that the clamping stability is improved.

The utility model provides a welding tool for a movable arm, which relates to the technical field of welding and comprises a bottom plate, a moving groove is mounted at the top of the bottom plate, a two-way threaded rod is mounted on the inner side of the moving groove, a moving block is mounted on the outer side of the two-way threaded rod, and a side supporting frame is mounted at the top of the moving block. A clamping plate is installed at one end of the side supporting frame, a clamping frame is installed on the side face of the clamping plate, and a fixing block is installed on the outer side of the middle of the two-way threaded rod. The motor is electrically transmitted to the two-way threaded rod to drive the moving block to move on the inner side of the moving groove, it is guaranteed that the clamping frame is driven to clamp parts, the electric lifting column is beneficial to lifting according to the sizes of the parts, the time and labor of manual adjustment are shortened, errors and mistakes during manual adjustment are reduced, and the working efficiency is improved. Risks and dangerousness during operation are reduced, the working efficiency is improved, springs are installed on the side faces of the clamping plates, and the springs provide flexible support for the clamping frame to clamp parts.

The utility model relates to a high pressure sealing and pressure adjusting structure of a hydraulic knife handle, which comprises a knife handle base body, a piston rod, an O-shaped sealing ring, a thread bushing and a screw, the knife handle base body is provided with a piston cavity, a sealing cavity and a thread cavity, and the piston cavity, the sealing cavity and the thread cavity are sequentially distributed in a stepped hole structure; the threaded sleeve is fixed in the threaded cavity; one end of the piston rod is arranged in the piston cavity, and the other end of the piston rod penetrates through a center hole of the threaded sleeve and is supported on the screw. The screw is arranged in the threaded sleeve, is spirally matched with the threaded sleeve and can push the piston rod to move in the piston cavity; the piston rod, the threaded sleeve and the inner wall of the sealing cavity form a closed annular cavity, and the O-shaped sealing ring is arranged in the annular cavity. The sealing element is simple in structure, convenient to machine and manufacture, low in cost and capable of effectively guaranteeing the performance and the service life of the sealing element in the high-pressure environment.

The utility model relates to the field of gasoline standard measuring devices, and particularly provides a novel meter for measuring standard volume. The metering device comprises the metering device, the metering device comprises the storage bin, the metering bin and the oil inlet, the clamping mechanism is arranged, the oil inlet is a channel for gasoline to enter the metering device, the arrangement is reasonable, the refueling efficiency and safety can be ensured, and the movable groove provides installation and movement space for the clamping mechanism. The clamping mechanism clamps the oil gun opening to prevent shaking and improve safety and accuracy of oiling, the sealing clamping ring can be tightly attached to the oil gun opening to prevent gasoline leakage, the diameter of the inner ring of the sealing clamping ring is set to be smaller than that of the oil gun opening so as to firmly clamp the oil gun opening, the push rod can adjust the position of the sealing clamping ring, and the sealing clamping ring can be tightly clamped. The device adapts to oil gun muzzles with different diameters, and the universality of the device is improved.

This invention provides a film stretching device, comprising: a base adapted to be fixedly connected to the equipment containing the film; and a clamping device disposed opposite to both sides of the film and fixedly connected to the base. The clamping device includes: a fixed base fixedly connected to the base; a first roller shaft connected to the fixed base; a first clamping roller rotatably connected to the first roller shaft; a second roller shaft oscillatingly connected to the fixed base; a second clamping roller rotatably connected to the second roller shaft; and a driving device for clamping the first and second clamping rollers. When the first and second clamping rollers are clamped, the rotation axes of the second and first clamping rollers are parallel, and the film passes between the second and first clamping rollers. This device overcomes the problem in the prior art where the film is not easily flattened, causing production quality defects. This invention also provides a winding device with this film stretching device.

The utility model relates to a PCB board welding fixture, including moving track, first support pillar, second support pillar, first clamping piece and second clamping piece, the first support pillar and second support pillar are respectively in sliding connection with the moving track, the first clamping piece is connected with the first support pillar, the second clamping piece is connected with the second support pillar, and the second support pillar is connected with the moving track. The first clamping piece stretches out and draws back relative to the first supporting column. The second clamping piece is connected to the second supporting column, and the second clamping piece stretches out and draws back relative to the second supporting column. The PCB welding clamp is simple in structure, the welding angle of the PCB can be manually adjusted, the clamping force is high, welding of workers is facilitated, and the risk that the PCB is crushed in the welding process in the prior art is reduced.

The invention discloses a wire clamp which comprises a main box body, a wire clamp shell and a wire clamp seat arranged in the wire clamp shell, an installation groove is formed in the wire clamp shell, the wire clamp seat is placed in the installation groove, two inner wire clamping through holes are formed in the wire clamp seat, more than one first insertion groove is formed above each inner wire clamping through hole in parallel, and the first insertion groove and the second insertion groove are arranged in parallel. An upper aluminum pressing column is inserted in each first inserting groove, more than one upper thorn piece is vertically arranged below each upper aluminum pressing column, an aluminum sliding block is connected below each inner wire clamping through hole in an up-down sliding mode, more than one second inserting groove is formed in the upper portion of each aluminum sliding block in parallel, and a lower aluminum pressing column is inserted in each second inserting groove. More than one lower stabbing piece is vertically arranged above each lower aluminum pressing column, the lower stabbing pieces and the upper stabbing pieces are symmetrically arranged, a torque screw rod is rotatably connected below each aluminum sliding block, and the screw rod part of the torque screw rod is in threaded connection with the bottom of the wire clamp seat. According to the structure, the cable clamping effect is improved.

The invention belongs to the technical field of bottle clamps, particularly relates to a universal bottle clamp, and provides the following scheme aiming at the problems that according to an existing traditional bottle clamp design, bottle openings of various sizes are inconvenient to clamp, parts need to be frequently replaced during switching, the efficiency is low, and the workload is large. A first clamping jaw and a second clamping jaw are rotationally connected to the top of the bottom plate through a fixing column, and the first clamping jaw and the second clamping jaw are matched with each other and used for clamping a bottle opening. According to the universal bottle clamp, the adjustable clamping jaws and the auxiliary limiting assembly are integrated, the universal bottle clamp can adapt to various bottle opening sizes, parts do not need to be frequently replaced when the universal bottle clamp is used, clamping stability is guaranteed through the design of the tension spring, the auxiliary limiting assembly is tightly matched with the supporting ring through an abutting tongue, and therefore the universal bottle clamp is convenient to use. And the bottle opening can be prevented from shaking in the clamping process, the clamping stability is further improved, and the production efficiency is remarkably improved.

The utility model discloses a kind of laser cutting structures of clamping card pipe, including chassis, the side mount frame of guide rail strip is installed in the top of one side of chassis, equidistantly installed on the pipe body auxiliary support assembly of chassis, the pipe feeding travelling trolley is installed on the side mount frame, the pipe feeding chuck is installed on pipe feeding travelling trolley, the pipe body fixing mechanism is installed in the top of one end of chassis, the cutting mechanism is located in one end of chassis, and cooperates with the pipe body fixing mechanism, and the hydraulic blanking mechanism for supporting pipe body is located in front of cutting mechanism;The stability, efficiency and safety of production are improved by the precise design and automation control of this structure, and it is the effective application of laser cutting technology in pipe processing field.

The utility model belongs to the technical field of milk shaking devices, and particularly discloses a feeding bottle clamp and a milk shaking device using the same. The feeding bottle clamp comprises a clamp main body, the clamp main body is provided with a feeding bottle clamping cavity, a plurality of groups of elastic clamping pieces are arranged in the feeding bottle clamping cavity, each group of elastic clamping pieces comprises a plurality of elastic clamping pieces distributed along the circumference, one end of each elastic clamping piece is fixedly connected with the clamp main body, and the other end of each elastic clamping piece extends to the middle of the feeding bottle clamping cavity. The end, extending to the middle of the feeding bottle clamping cavity, of each elastic clamping piece is provided with a clamping part, the clamping parts on the elastic clamping pieces in each group form a circle in a surrounding mode, the clamping parts on the elastic clamping pieces in different groups are vertically layered, and the milk shaking device comprises the feeding bottle clamp. By arranging the multiple sets of elastic clamping pieces on the feeding bottle clamp, feeding bottles with different thicknesses can be stably clamped, and it is guaranteed that the thin feeding bottles are not thrown out when the milk shaking device operates at a high speed; by arranging the multiple sets of elastic clamping pieces, the clamping force of each set of elastic clamping pieces is not too large, and feeding bottles are convenient to take and place.

The utility model discloses a pneumatic press with a pressing head easy to replace. The pneumatic press comprises a base and a screw. The upper surface of the base is fixedly connected with a placing plate; the screw rod is rotationally connected to the rear end of the upper surface of the base, the top end of the screw rod is fixedly connected with a knob, the middle of the screw rod is in threaded connection with a fixing plate, an air cylinder is arranged in the middle of the front end of the fixing plate, the telescopic end of the air cylinder is fixedly connected with a supporting plate, a quick-release mechanism is arranged on the lower surface of the supporting plate, and a pressing head is arranged in the quick-release mechanism; the pneumatic press further comprises a single-chip microcomputer, the single-chip microcomputer is arranged at the right end of the upper surface of the base, the output end of the single-chip microcomputer is electrically connected with the input end of the air cylinder, according to the pneumatic press with the pressing head easy to replace, pressing heads of different specifications or types can be replaced more rapidly and flexibly, and different production requirements are met; and meanwhile, position deviation or vibration of the workpiece in the machining process can be avoided, and the machining precision and the surface quality are improved.

The utility model relates to the field of metal welding piece detection, and discloses a steel structure welding quality compression resistance detection mechanism which comprises a bottom plate, a mounting structure is fixedly connected to the middle of the upper end face of the bottom plate, a driving structure is fixedly connected to the middle of an inner cavity of the mounting structure, and clamping structures are symmetrically connected to the inner cavity of the mounting structure in a sliding mode. The left side of the upper end face of the bottom plate is fixedly connected with a containing structure, a lifting structure is arranged in the middle of the upper end face of the containing structure, the sliding block moves to make the clamping plate and the fixing structure slide relatively, and the steel structure makes contact with the fixing column. When interaction force is generated between the fixing column and the steel structure, the fixing column can slide towards an inner cavity of the sliding groove, the fixing spring contracts, so that the steel structures of different shapes are clamped and fixed, meanwhile, through the telescopic characteristic of the spring, it can be guaranteed that stable clamping force can be provided on the surfaces of the steel structures of different shapes, and the clamping effect is good. And the steel structure is prevented from displacement in the subsequent detection process, so that the accuracy of the detection result is ensured.