31results about How to "Assembly accuracy is easy to guarantee" patented technology

The invention belongs to the field of steel structure construction, and particularly relates to an offset lifting slip device and method. A lifting supporting frame is arranged on a structure main body steel column; an assembled jig frame is erected on a floor, and main body roof trusses are assembled into an overall structure; the overall roof trusses are lifted to be arranged below a load-bearing track beam; hydraulic jacking and pushing driving equipment is connected with a lifting load-bearing beam through a pin shaft, the hydraulic jacking and pushing driving equipment is started, and thelifting load-bearing beam is jacked and pushed to slip to a calculated elevation on the load-bearing track beam; and four jacks are used on the structure main body steel column for jacking lower chords of the roof trusses, a lifter equipment device is shut down, all the jacks unload the main body roof trusses in place in synchronous and in-step modes, and the main body roof trusses and the structure main body steel column are fixedly connected, so that construction is completed. According to the offset lifting slip device and method, working at heights is reduced, safety is improved, the efficiency is high, and the cost of measures is saved.

The invention relates to an auxiliary device for installation and positioning of claw poles. The auxiliary device comprises a base and a plurality of positioning assemblies, wherein an insertion holeis formed in the base, the plurality of positioning assemblies are arranged on the circumference with the insertion hole as a circle center, the positioning assemblies comprise positioning columns andpositioning plates, the positioning columns are arranged on the base, the positioning plates are arranged on the positioning columns, and positioning grooves matched with the tips of pawls of the claw poles are formed in the positioning plates. The auxiliary device has the beneficial effects that during use, a rotating shaft penetrates through the insertion hole, and then one claw pole is sleevedon the rotating shaft, the pawls are ensured to face upwards, the positioning columns are clamped among the pawls of the claw pole so as to enable the claw pole to be positioned in the circumferential direction, a magnetic field winding and a magnetic yoke are arranged on the rotating shaft, and finally the other claw pole is arranged on the rotating shaft, the pawls of the other claw pole facesdownwards, the tips of the pawls are clamped into the positioning grooves so as to enable the other claw pole to be positioned in the circumferential direction and not easy to shake; and in this way,the integral assembly accuracy is easy to guarantee during manual assembly.

The invention discloses an engine bearing bush mounting and dismounting tool, and belongs to the field of engine assembly. The engine bearing bush mounting and dismounting tool comprises a tool body. The two ends of the tool body are a dismounting end and a mounting end respectively, and the mounting end sequentially comprises a guide journal and a bearing bush matching journal in the direction away from the dismounting end. The diameter of the guide journal is larger than that of the bearing bush matching journal, the bearing bush matching journal is used for sleeving two half bushes of a bearing bush, and a step surface between the guide journal and the bearing bush matching journal is a bearing bush thrust surface. A guide ring can be hooped on the peripheries of the two half bushes and can provide radial limiting for the bearing bush in the mounting process, so that the two half bushes are prevented from radial deformation or radial displacement. In addition, the guide ring can axially move along the guide journal in the press-fitting process so as to play an axial limiting role in mounting of the bearing bush and determine the press-in amount of the bearing bush pressed into a bearing seat. The engine bearing bush mounting and dismounting tool is simple in structure and low in manufacturing cost, and the assembly precision is easy to guarantee.

The invention relates to a novel main shaft reciprocating support structure of sliding bearing type fiberglass drawing equipment. The novel main shaft reciprocating support structure comprises an assembling type rolling wheel, wherein the assembling type rolling wheel comprises a rotary table and a shaft core cylinder detachably connected with the rotary table, and the interior of the rotary table and the interior of one end of the shaft core cylinder are respectively provided with one sliding bearing; the main shaft is supported by the two sliding bearings, a first dustproof mechanism is arranged between the rotary table and the sliding bearing arranged in the rotary table, and a second dustproof mechanism is arranged between the shaft core cylinder and the sliding bearing arranged in the shaft core cylinder. The main shaft reciprocating support structure has the advantages of being simple in structure, low in cost, simple in assembly technology, easy for assurance of assembly accuracy, good in whole rigidity, relatively low in reciprocating resistance and the like.

The invention provides a method and device for determining a welding posture of a pipeline assembly and an upper computer, and relates to the technical field of pipeline assembling. The method for determining the welding posture of the pipeline assembly comprises the following steps that the spatial position posture of each part in the pipeline assembly in the pipeline assembly is acquired, wherein the parts comprise guide pipes, two-way connecting parts and/or three-way connecting parts; the information of the pipe feeding amount, the rotation angle and the bending angle are acquired when theguide pipes are bent; the scribing positions of the head ends and/or the tail ends of the guide pipes are determined according to the information of the pipe feeding amount, the rotation angle and the bending angle during bending and the spatial position posture of each part; and according to the scribing positions, the welding posture of the pipeline assembly is determined. According to the scheme of the method and device for determining the welding posture of the pipeline assembly and the upper computer, the step of building a combined clamp in the welding process of a complex pipeline assembly is omitted, the manual operation amount is reduced, and the welding efficiency of the complex pipeline assembly is improved.

The invention discloses a horizontal stator and rotor assembling device and method for turbine power generation equipment, and belongs to the technical field of turbine power generation equipment assembling. The problem that the assembling technology in the prior art is not suitable for coaxial assembling of the stator and the rotor of the turbine power generation equipment is solved. According to the technical scheme, a casing bent plate support is used for installing a stator and casing combination and fixed to the left end of a platform base, a linear guide rail is installed on the right side of the platform base, and a sliding block is assembled on the linear guide rail; the turbine shell sliding bracket is used for installing a rotor and turbine semi-finished product assembly and fixed to the sliding block, the lead screw nut is fixedly installed on the sliding bracket through the lead screw nut base, the ball screw and the lead screw nut are installed in a threaded fit mode, and the hand wheel is used for rotating the ball screw to drive the sliding bracket to move horizontally along the linear guide rail. According to the tool, it is ensured that stator and rotor assemblies of the turbine power generation device are accurate in positioning, reliable in clamping and convenient to assemble, it is effectively ensured that the stator and the rotor do not make adsorption contact or collide in the assembling process, and the assembling quality and efficiency are effectively improved.

The invention discloses an image-detection-based assembling method capable of guaranteeing instrument assembly assembling precision. The assembling method is used for assembling instrument assembliesby using an instrument assembly assembling precision control device on the basis of image detection. The assembling method the comprises the following steps that step A, a lower jig is clamped to an assembling table for positioning and fixing; step B, the instrument assemblies are clamped to a levelness detection CCD assembly for assembly surface levelness detection and calibration as well as temporary storage; step C, an assembling assembly sucks the instrument assemblies to a position above the assembling table, a concentricity detection CCD assembly is used for performing concentricity detection and calibration of the instrument assemblies before assembling and during the lowering process, and then glue dispensing is carried out in sequence; step D, an upper jig and the lower jig are buckled and combined, and then the concentricity detection CCD assembly is used for performing assembling concentricity re-inspection of the instrument assemblies. The assembling method has the beneficial effects that the assembling precision is higher, the assembling precision is easy to guarantee, the relative positions of the instrument assemblies can be adjusted in real time, the assembling costis low, the assembling efficiency is high, the automation degree is high, and the assembling time is short.

The invention discloses an automobile instrument panel which comprises an outer cover and a displayer assembly arranged in the outer cover. The outer cover comprises a light shield and a rear shell, and the rear shell is provided with a front installation opening; the light shield comprises an opening part, a light shielding part and a light guide cylinder; a top wall opposite to the light shielding part is formed at the top of the light guide cylinder, and a window is formed in the top wall; the displayer assembly comprises an upper screen assembly, a reflecting mirror assembly and a rear screen assembly which are fixedly arranged with one another, the reflecting mirror assembly comprises a half reflecting mirror, the half reflecting mirror is obliquely arranged forwards from top to bottom, the rear screen assembly is arranged behind the half reflecting mirror, and the upper screen assembly is arranged above the half reflecting mirror; the upper screen assembly is arranged between the top wall of the light guide cylinder and the light shielding part, is in non-contact with the light shielding cover and is fixedly connected with the rear shell; and the reflecting mirror assembly and the outer cover are arranged in a non-contact mode. The internal parts of the displayer assembly of the automobile instrument panel are mutually fixed, and the whole displayer assembly is only fixedly connected with the rear shell in a suspended mode so that the assembly quality and the 3D display effect are easier to guarantee.

The invention discloses a microminature balance-force type sealed DC electromagnetic relay. A conductive piece is fixed on a pedestal, the lower end of a connecting card is installed in an installation hole of the conductive piece, and the upper end of the connecting card is installed on a bottom surface of a pressure piece. A movable contact spring is installed in an installation hole of an insulating block, and a movable contact is fixedly installed at the right end of the movable contact spring. A transition piece is installed on the pedestal, and a static contact is fixedly installed on the transition piece. The insulating block is installed on a shaft frame through a rotating shaft, and an armature is installed in an installation groove on the shaft frame. A first yoke is installed onthe shaft frame, and a magnetic steel is installed on the shaft frame. A second yoke is installed on the shaft frame, and a third yoke is installed on the shaft frame, and is close to the right sidesurface of the shaft frame. A coil is installed on the shaft frame, and is located between the second yoke and the third yoke. The electromagnetic relay is simple in structure, is good in manufacturability, is high in operability, guarantees the assembly precision easily, can improve the assembly efficiency, and achieves the batch production.

The invention comprises a double four-roll temper mill, comprising two rail supports, four breams, an operation side rack, a transmission side rack, a No.1 four-roll roller system, a tension measuring roller and a No.2 four-roll roller system. The two rail supports are fixed on a workshop foundation, and the operation side rack and the transmission side rack are fixed and supported on the rail supports. The operation side rack and the transmission side rack are both integrated steel casting pieces with double windows, and are connected into a whole through the four beams. The No.1 four-roll roller system and the No.2 four-roll roller system are respectively installed in corresponding rack windows. The tension measuring roller is arranged between the No.1 four-roll roller system and the No.2 four-roll roller system and is supported on the racks for detecting tension in the rollers. Secondary cold rolling and temper rolling of band steel can be implemented through the No.1 four-roll roller system, the tension measuring roller and the No.2 four-roll roller system. The double four-roller temper mill has the significant characteristics of compact structure, easy assurance in integral assembly precision, short band through time, high unit efficiency, high pass percent and the like.