1326 results about "Bar pressing" patented technology

The invention discloses a dissimilar metal material brazing method. The dissimilar metal material includes a first base metal and a second base metal different from each other. The method comprises the following steps: clamping the first base metal on a telescopic fixture and clamping the second base metal on a fixed fixture in such a manner that the welding surfaces of the first base metal and the second base metal face to each other, and placing a solder between the welding surfaces; applying a pre-pressure on the first base metal relative to the welding surface; locally rapidly heating thewelding parts of the first base metal and the second base metal to a preset temperature and keeping the temperature; increasing the pre-pressure to a welding pressure; applying ultrasonic vibration to the first base metal relative to the welding surfaces by an ultrasonic compression bar; and continuously keeping the temperature and the pressure after the ultrasonic vibration completes, stopping heating, and further keeping the pressure until the welding parts are cooled. The method can improve the strength of a brazed joint of dissimilar metal materials by reducing the formation of laminar brittle intermetallic compounds and the like.

The invention relates to a bush fixture. The bush fixture comprises a body and a table, wherein a pressure rod device, the pressure rod fixing plate of the pressure rod device and a drive element matched with the pressure rod device are arranged on the body; the pressure rod device comprises at least a pair of pressure rods; support carriages corresponding to the pressure rods respectively are movably connected to the table; one end of every pressure rod is movably connected to the pressure rod fixing plate; the other end of every pressure rod is sleeved on the corresponding support carriage; every support carriage is provided with a product positioning device and a returning device; the product positioning device is connected with the returning device; and the returning device is provided with a bush installation rod which is matched with the product positioning device. The bush fixture can be used for pressing bushes on multiple types of automobile frames, can ensure pressing precision and control pressing force, can adjust a positioning fixture to accomplish pressing action according to the sizes of the automobile frames and the distances among the bushes on the automobile frames, and improves assembling efficiency and accuracy.

A mold-pressing device including a seat body formed with a horizontal fissure at one end and a vertical chamber communicated with the fissure. A mold block is disposed in the chamber. One face of the mold block is disposed with a solid die, while the other face of the mold block is disposed with a channel passing through the mold block. A pressing lever is pivotally disposed in the channel of the mold block. A housing covers the seat body and is formed with a window for a pressing section of the pressing lever to extend therethrough. In use, a paper or a sheet is pushed into the fissure of the seat body and then the pressing section of the pressing lever is depressed, whereby a protuberance of the pressing lever is moved downward to force the mold block downward with the die punching the paper or the sheet placed in the fissure. Therefore, a product with a shape as that of the die is formed.

The invention relates to a sludge treatment device. The sludge treatment device comprises a sludge conveyor, a sludge crushing forming machine and a sludge drying machine, wherein a pair of sludge crushing rollers and a pair of sludge bar pressing forming rollers, which are driven by a variable-frequency motor, are arranged inside a sludge hopper of the sludge crushing forming machine from top to bottom; a drying bin inner cavity of the sludge drying machine is divided into a drying chamber and a circulating air heating chamber, a plurality of layers of stainless steel mesh-belt conveying tables are arranged in the drying chamber, and a discharging port of the sludge hopper of the sludge crushing forming machine is arranged right above a conveying starting end of the stainless steel mesh-belt conveying table on the topmost layer in the drying chamber of the sludge drying machine. When the sludge treatment device is used for treating the urban domestic sludge, the sludge treatment device has remarkable advantages of strong continuous treatment capacity, short period, high efficiency, good treatment effect, no secondary pollution, environmental protection, stability and safety in operation, low energy consumption, high automation degree and the like. The input-output ratio is high, the social benefit is high, and the application prospect is wide.

The invention provides a bar conveyor, which comprises a bar pressing device, a control system, a bar taking device, a bar transferring device and an adjusting device, wherein the bar pressing device is used for arranging batches of multilayer bars into a single layer; the control system is used for controlling the bar pressing device automatically; the bar taking device is used for taking a single piece of bar automatically from the bar pressing device; the bar transferring device is used for transferring bars from the bar taking device; the adjusting device is used for adjusting the bar specifications and comprises a horizontal adjusting device and a vertical adjusting device for the bar specifications; the horizontal adjusting device is connected with the bar taking device; and the vertical adjusting device is connected with the bar pressing device. According to the bar conveyor, manual bar taking and storage are replaced, the labor intensity of workers is reduced greatly, and the automation degree and the production efficiency are improved greatly. During the production process, bars having different specifications are adjusted through the adjusting device, thereby solving the problems that an existing bar conveyor cannot convey extremely slender bars, sizes of bars for production cannot be adjusted freely, and the like.

The invention relates to a ram bending deformation two-way compensating device, mainly solving the problem that the traditional draw bar compensating device causes the axial deformation of a ram because draw bars are eccentric. The invention is characterized in that the lower part of the ram (4) is provided with two compression bars (7) and a push action cylinder (6) connected with the compression bars (7); the compression bars (7) and the draw bars (2) are symmetrical up and down along the centre line of a milling spindle (1); the two compression bars (7) are symmetrical left and right along the centre line of the milling spindle (1); and the push action cylinder (6) is arranged in a main spindle box (3). The two-way compensating device does not generate the additional axial deformation while compensating the bending deformation of the ram. Compared with the traditional pure draw bar compensating method, the pressure required to be provided for the cylinder is small under the condition of compensating the same deflection, and therefore, the required rated pressure of the cylinder is smaller.

The invention provides intelligent detection equipment for printing and dyeing wastewater and relates to the field of detection equipment. The intelligent detection equipment for the printing and dyeing wastewater comprises a box body, wherein a first motor seat is fixedly mounted at the top of the box body; a first motor is arranged at the top of the first motor seat; a feeding pipe is arranged at the top of the box body and is located at the left side of the first motor seat; the bottom of the feeding pipe penetrates through the box body and is communicated with the top of the box body. According to the intelligent detection equipment for the printing and dyeing wastewater, a connection box is arranged and a cavity and a square hole are formed in the connection box, a clamping device and a second pressing rod which is fixedly connected with a second pressing block are arranged, and a rotary shaft which is in clamping connection with the square hole and holes which are symmetrically formed in left and right sides of the rotary shaft and are in clamping connection with the second pressing rod are arranged; the second pressing rod is separated from the holes through downward pulling the rotary shaft, so that the rotary shaft is convenient to detach; finally, the rotary shaft is convenient to replace and maintain and time and labor are saved.

The invention discloses a main board locating device of a mobile phone. The locating device comprises a base board and a plurality of locating press bars, wherein the locating press bars are connected on the base board in a rotary mode and respectively arranged into two lines which are parallel and opposite to each other, and locating thimbles used for locating the locating press bars are arranged on opposite end portions among the locating press bars. The main board locating device of the mobile phone conducts location to a main board of the mobile phone through the locating press bars and the locating thimbles, is suitable for preprocessing of various kinds of main boards of mobile phones, and can be used universally by various products, multiple work positions and used in a recycling mode. In addition, a press strip or an inclined foot can be arranged according to needs, and therefore a tool is enabled to be never scrapped, resources are fully used, and the production cost of the locating device is greatly saved.

The invention discloses a device and a method for detecting bending degree of a steel structure cross beam, and relates to the technical field of steel structures. The device comprises a mounting base, wherein two symmetric supporting plates are fixedly arranged on the upper surface of the mounting base; a fixing plate is arranged on the upper parts of the supporting plates; the upper surface of each supporting plate is fixedly connected to the bottom surface of the fixing plate; a pressing detection mechanism is fixedly arranged on the bottom surface of the fixing plate; a supporting mechanism is fixedly arranged on the upper surface of the mounting base; and the pressing detection mechanism comprises a movable plate, pressing plates, rollers, a pressing rod and an arc-shaped block. According to the device and the method for detecting the bending degree of the steel structure cross beam, the detection device can simultaneously detect multiple stress points of the steel structure crossbeam through the arrangement of the pressing detection mechanism and the supporting mechanism, a problem that the next stress point of the steel structure cross beam is detected after a worker movesthe steel structure cross beam in order to reduce the labor cost of the worker can be effectively avoided, and the operation is convenient.

The invention provides a pedicle screw and a bar pressing device. The pedicle screw comprises a screw body and a screw base. A U-shaped bar containing groove divides the screw base into a left board body and a right board body. Positioning grooves are formed in the left side of the left board body and the right side of the right board body respectively. The pedicle screw is characterized in that positioning chutes with the upper open ends are longitudinally formed in the front sides and the rear sides of the upper ends of the left board body and the right board body respectively. The bar pressing device comprises an extension sleeve, a bar pressing sleeve and a bar pressing nut. A bar pressing groove is formed in the lower portion of the extension sleeve. Two opposite strip openings are formed in the side wall of the extension sleeve. Positioning elastic pieces are arranged in the strip openings. Positioning protrusions are arranged on the inner sides of the lower ends of the two positioning elastic pieces. Positioning sliding blocks matched with the positioning chutes and protruding inwards are arranged on the inner wall of the extension sleeve, the extension sleeve is sleeved with the bar pressing sleeve, and the bar pressing nut is arranged at the upper portion, above the bar pressing sleeve, of the extension sleeve. The pedicle screw and the bar pressing device have the advantages that connection is easy, convenient and quick, connection reliability is high, disengagement is not likely to happen, detachment is easy, the bar pressing operation speed is high, and efficiency is high.

The invention discloses a compression bar contact type tensegrity structure and an integration and tension exertion method, and relates to the technical field of engineering structure. The compressionbar contact type tensegrity structure comprises stiffening ring triangular trusses, core shaft triangular trusses and longitudinal pulling rods. The stiffening ring triangular trusses are pressed inan isolation mode; the core shaft triangular trusses bear pressure in a contact mode; and the longitudinal pulling rods are constantly pulled, and a plurality of paralleled outer rings of the stiffening ring triangular trusses in the heat-to-tail sequence and are closed to tails. The compression bar contact type tensegrity structure is a self-balance and self-bearing structure, segmented assemblage is adopted, the compression bar contact type tensegrity structure symmetrically extends, modules are integrated in an assembly mode, the longitudinal pulling rods are enabled to exert uniform tension through the graded and symmetric synchronized push of ends of the core shaft triangular trusses. The compression bar contact type tensegrity structure and the integration and tension exertion methodhave the characteristics of light weight, high stiffness, high geometric stability, and high practicability; the installation integration method is simple, convenient and safe, and has a high expandability; and the tension exertion method is effective, the tension exertion equipment is less, control is easy, the tension is uniform and precise, and the structural joint is simple and neat.

The invention discloses an aluminum alloy die casting piece trimming die with a smooth cut. The aluminum alloy die casting piece trimming die comprises an upper die, a lower die, a guide structure arranged between the upper die and the lower die, a product positioning structure arranged on the lower die, and a trimming cut arranged on the upper die. A hollow cavity is formed below a lower die fixing plate and internally provided with a support plate capable of moving up and down, the support plate is provided with a return rod and a plurality of support rods for supporting a feeding handle, the upper ends of the return rod and the support rods extend out of the upper surface of the lower die and is connected with the lower die in a sliding manner, a compression rod is arranged at a position of the upper die, which corresponds to the return rod, and an elastic reset element is arranged between the support plate and a lower compression plate of the lower die. According to the aluminum alloy die casting piece trimming die disclosed by the invention, when the punching is conducted, the feeding handle is kept at the horizontal state all the time, so that the cut of a product after being punched is smooth and orderly; and when the punching is conducted, the product is ejected synchronously so as to be easy to take out, and the surface of the product is avoided from damaging; and a guide pillar and a guide sleeve can be disassembled conveniently, and the guide pillar is not easy to break.

The invention discloses a fabric compounding apparatus, and belongs to the field of textile processing machinery and equipment. In the apparatus, the middle of an unwinding turntable is horizontally and fixedly provided with an unwinding bearing rod, the terminal end of a pressure disc rotation rod at the upper side of the unwinding turntable is vertically and rotationally connected with a dampingrotation wheel, a pressure rod slide block is arranged on a rotation guide rod in a sliding manner, a cloth guide bearing plate is tilted downwards and fixedly arranged on a composite support frame at the lower side of the unwinding bearing rod, a feeding roller is horizontally arranged at the upper side of the cloth guide bearing plate, a plurality of gluing nozzles are arranged at the lower side of a glue spraying guide pipe, an upper material guide roller and a lower material guide roller are arranged in a compression fit manner, an upper pressing support frame and a lower pressing supportframe are arranged on the composite support frame in order from top to bottom, and a cloth pulling motor and a cloth pulling roller are connected by a cloth pulling chain in a transmission manner. The structure design of the apparatus is reasonable, the continuous and smooth compounding of the fabric can be performed rapidly and efficiently during the material transfer process, the efficiency andquality of fabric compounding are improved, the automation degree is high, and the needs of processing and use are met.

The invention relates to a grooved roller type separating and broken seedling removing mechanism of potato tubers and belongs to the mechanical field of agricultural harvesting machines. The mechanism comprises a conveying bar elevator chain (9) of a surrounding excavation conveying device (1). A bar pressing roller (5) driven by a power device is arranged on a high end of the conveying bar elevator chain (9). An elastic bar mechanism (12) is arranged on the bar pressing roller and extends out of an elastic bent bar (10) which is pressed on the output end of the conveying bar elevator chain. A groove type seedling removing roller (4) engaged to the bar pressing roller is installed under the bar pressing roller via axially-extending grooves uniformly distributed in the outer periphery. The mechanism is capable of allowing seedlings entering thereof to be in concave and convex compression sate, so frictional drawing force is remarkably increased and it is improbable for the seedlings to struggle against the mechanism but being drawn off from potatoes, so seedling removing rate is remarkably increased.

The invention discloses a tapered roller bearing pressing and assembling device. The tapered roller bearing pressing and assembling device comprises a pressure machine, and a pressing rod, a pressing head and a guiding head which are sequentially connected along a pressure effect line of the pressure machine, wherein the pressing rod is fixedly connected to the pressure machine, a cavity is formed in the pressing head, the guiding head is fixedly connected to the inner part of the cavity through a connecting rod, and under the effect of spring force, the guiding head moves back and forth along the pressure effect line in the cavity; under the feed condition, a tapered roller bearing is assembled outside the guiding head in a sleeving manner and fixed on the guiding head through a ball head plunger, and the end surface of the tapered roller bearing is abutted to the guiding head; under the pressing and assembling condition, the guiding head is embedded into a positioning hole in a shaft to be pressed and assembled, and the pressing head is connected with the tapered roller bearing in a pressing manner on the shaft to be pressed and assembled. Through the adoption of the technical scheme, the working strength of manual pressing and manual assembling of an operator is reduced, and besides the pressing accuracy and the assembling accuracy of the tapered roller bearing are improved.

The invention provides an adjustable pressing test bar, comprising a seat tube, a press bar, a spring, a press piece, an upper cover and a lower cover, wherein, screw threads are arranged on the outer surface at the two ends of the seat tube; a through hole is arranged at the center of the seat tube; the upper cover and the lower cover are respectively combined on the screw threads at two ends of the seat tube; the upper cover and the lower cover are respectively provide with a bearing hole; the press bar is supported by the bearing holes of the upper cover and the lower cover, can be accommodated in the hole of the seat tube in a sliding manner, is provided with a bump, and the surface of the press bar is provided with a scale; the spring is sheathed on the press bar; the press piece is combined at one end of the press bar. The pressing force of the adjustable pressing test bar can be adjusted according to the change of the position of the seat tube relative to the cover.

The invention discloses press fit equipment for a plywood. The equipment comprises a box. The upper side of the box is provided with a gluing device, the gluing device comprises a mobile block, and the mobile block is slidingly arranged between two vertical plates. Two vertical plates are symmetrically and fixedly connected to the bottom of the mobile block, a sponge roller is rotatably connectedbetween the two vertical plates, a mounting block is fixedly connected to one side of each vertical plate, and a press rod is connected between the two mounting blocks and extrudes the sponge roller through an extrusion device. According to the press fit equipment for the plywood, when the mobile block moves in the direction away from a glue tank, second inclined plates make wedge blocks moving onthe second inclined plates gradually move upwards, through the interaction of wedge surfaces, the wedge blocks push second slide blocks to press the sponge roller, the press rod extrudes the glue adsorbed by the sponge roller, the glue directly falls on the surface of the plywood, and the problem is solved that when the sponge roller is applied to painting, the amount of the glue is gradually reduced, and the glue on the plywood is uneven. It is guaranteed that the glue is applied evenly, and the quality of the product is guaranteed.

The invention discloses a pressing plate clamp. The pressing plate clamp comprises a base plate and a base, wherein the base is arranged on one side of the base plate; a pressing table is further arranged at the front end of the base on the base plate; a compressing device is arranged on the base; the compressing device comprises a support, a handle, a connecting rod and a pressing pipe; the support is arranged on the base; the handle is connected onto the support through bolts; one end of the connecting rod is connected onto the handle, and the other end of the connecting rod is connected onto the pressing pipe; one end of the pressing pipe is connected onto the support, and an adjusting pressing rod is arranged at the other end of the pressing pipe; the pressing pipe and the base are in interference fit at a matched clamping position; an adjusting nut is further arranged between the adjusting pressing rod and one end of the pressing pipe. According to the pressing plate clamp, the connecting rod is driven through the movement of the handle, and thus the pressing pipe is driven to move, the adjusting pressing rod moves downwards, a product placed under the adjusting pressing rod is compressed, and the adjusting pressing rod can carry out adjustment according to the thickness of the product to realize quick compressing and loosening, so that the operation is convenient through the design, and quick clamping is realized.

The invention discloses a pneumatic fixing clamp. The pneumatic fixing clamp comprises a base and a fixed baffle plate, wherein a mounting groove is formed between the base and the fixed baffle plate; a clamping block which is connected and driven through one end of a screw is arranged in the mounting groove; the other end of the screw extends out of the base and is connected to a screw handle; a compressing block, which is arranged on the mounting groove, is positioned at one end of a pressing rod and fixed to the fixing rack; a downward pressing cylinder is connected to the other end of the pressing rod; a compressing cylinder is arranged at one side of the base through a supporting seat, and a piston rod of the compressing cylinder passes through the base to be connected to the fixed baffle plate. According to the scheme, a processed part is clamped in three directions, so that the processed part can well fixed, the stability of the processed part can be improved, the product accuracy can be improved, and the product qualification ratio can be improved.

The invention discloses a piston pin clamp spring press-fitting device, which comprises an L-shaped base, wherein a rotating element is hinged to a longitudinal part of the L-shaped base, one end of the rotating element is provided with a handle, the other end of the rotating element is hinged to a press rod, a guide frame and a piston connecting rod assembly frame are arranged on the transverse part, vertical to the longitudinal part, of the L-shaped base, a guide block is arranged on the guide frame, a guide hole is formed in the axial direction of the guide block, the hole diameter of the guide hole is smaller than the outer diameter of a clamp spring in the natural state, and is greater than the outer diameter of the clamp spring in the compression limit state, the outer diameter of the press rod is smaller than the hole diameter of the guide hole, and the axial direction of the press rod is over against the guide hole and approaches to or leaves away from the guide hole in the axial direction. Therefore the auxiliary press-fitting effect can be provided during the manual installation of the clamp spring through the piston pin clamp spring press-fitting device, so the press-fitting efficiency is improved, and the labor intensity of workers is reduced. Meanwhile, the clamp spring is prevented from slipping and disengaging in the installing process, and the safety during the installation is improved.

The invention provides a press fitting mechanism for a workpiece, belongs to the technical field of machinery, and solves the problems that the conventional workpiece is low in press fitting efficiency and poor in press fitting effect. The press fitting mechanism for the workpiece comprises a rack and a conveying belt, wherein positioning fixtures for positioning a pump cover are arranged on the conveying belt; a lifting cylinder capable of driving the positioning fixtures to rise up and fall down is arranged on the rack; a gluing device positioned on the upper side of the conveying belt and a material pressing device are arranged on the rack in sequence; the gluing device comprises a glue trough fixed on a bracket; glue outlet pores are formed in the lower end of the glue trough; a pressure plate capable of rising up and falling down in a reciprocating manner is arranged in the glue trough; the lifting cylinder can push the positioning fixtures to get close to the lower end surface of the glue trough; and the material pressing device comprises a pressing rod arranged on the rack and a material pressing mechanism capable of driving the pressing rod to rise up and fall down in a reciprocating manner. The press fitting mechanism for the workpiece has the advantages of higher press fitting efficiency and better press fitting effect.

The invention provides a screw square hoop forming device and a forming method thereof, comprising a central rotation part, a first rotation part, a plurality of axial enwinding parts and a bar bending device. The central rotation part and the first rotation part are arranged in parallel; the bar inlet side and a plurality of axial enwinding parts are arranged at the periphery of the central rotation part; wherein, each axial enwinding part is connected with the first rotation part in a detachable way; furthermore, the first rotation part can move along the axial direction correspondingly to the central rotation part; the bar bending device is arranged at the bar inlet side and comprises a positioning part and a bar pressing part; when bars extend into the central rotation part from the bar inlet side, the positioning part clamps the bars and the bar pressing part moves correspondingly to the positioning part and presses the bars to form a bending part; the bending part is buckled with the axial enwinding parts under the driving of the rotation of the central rotation part.

The invention relates to an internal fixing device for minimally-invasive percutaneous penetration. The internal fixing device comprises a minimally-invasive holding sleeve and a minimally-invasive pedicle screw. The minimally-invasive holding sleeve is composed of a minimally-invasive casing pipe, a locking sleeve, a sliding groove pin, a locking screw and an anti-rotation pin. The minimally-invasive pedicle screw is composed of a screw cap, a screw body and a pressing washer. A horizontal protrusion of the inner wall of the front end of the minimally-invasive holding sleeve and the anti-rotation pin are matched with a cross-shaped groove of the outer side of the screw cap of the minimally-invasive pedicle screw, so that the multi-direction movement of the screw is limited. Automatic bar pressing can be achieved in an operation through the lengthening design of the screw cap of the minimally-invasive pedicle screw, bar penetrating is simple, the protrusion of the outer side of the minimally-invasive holding sleeve and the elastic design are utilized to lock the screw in the use process, and the screw is reinforced and fixed through the locking screw. The internal fixing device has the advantages that as the unique design of the inner wall of the minimally-invasive holding sleeve is matched with the cross-shaped groove of the outer side of the screw cap of the minimally-invasive pedicle screw, screw holding and dismantling operation is simple, fast and effective; due to the design of the two thin walls of the front end of the holding sleeve, trauma of tissue channels is small; the problems of difficulty of bar penetrating and complexity of locking and pressurizing of the screw cap and the like in the operation can be solved.