92results about How to "Improve groove quality" patented technology

The invention relates to a worm-type plastic corrugated pipe grooving machine. Function of conveying plastic corrugated pipes is completed by a worm curve fixed on a cutter bar of a grooving cutter; the functions of cutting and grooving are realized by one alloy cutter head arranged at the terminal of the worm curve, the worm curve is meshed with wave crests of the plastic corrugated pipes, the plastic corrugated pipes advance for one pitch when being pushed by the worm curve once the cutter bar rotates for a circle, namely the plastic corrugated pipes advance to the next wave crest from the current wave crest, the alloy cutter head arranged at the terminal of the worm curve carries out grooving on the current wave crest for once, the alloy cutter head arranged at the terminal of the worm curve is vertical to axes of the plastic corrugated pipes to ensure that a blade is in a cutting interval while the plastic corrugated pipes do not axially move, the plastic corrugated pipes continuously axially move along with rotation of the cutter bar, and the blade carries out grooving on the wave crest one by one. The grooving machine provided by the invention has simple mechanical structure, no independent pipe conveying device or electronic and electrical inductive control system is required, grooving position is accurate, grooving quality is greatly improved, and rejection rate is greatly reduced while grooving efficiency is greatly improved.

The invention provides an effective grooving construction method for an underground continuous wall in slightly-weathered limestone with overlying sandy soil. The method specifically comprises the steps of 1) performing core drilling in a grooving area to determine rock characters; 2) measuring the position of a setting-out calibration guide wall; 3) performing guide wall construction and determining the distribution of hole punching positions; 4) drilling guide holes, and installing guide rods; 5) punching a rock layer by using a heavy hammer and grabbing crushed rocks by using a grooving machine; 6) brushing a wall by using a square hammer and connecting the holes to form a groove; 7) cleaning the bottom of the groove to finish the grooving construction. The construction method provided by the invention has the advantages that the defects and the shortages of unsafe and unstable factors, slow construction progress, poor grooving quality and the like are overcome, and the effective, low-cost and high-accuracy grooving construction in the slightly-weathered limestone is realized; the construction effect is good, the grooving speed is fast, the construction process is simple and convenient and the construction period is greatly shortened.

The invention discloses a method for disc-milling grooving processing on an open-type blisk. The method solves the problem that the existing open-type blisk channel rough grooving process has a large material removal amount and low processing efficiency, and produces interference between a cutter and a free-form surface blade because of narrow and deep grooving channels so that the cutter is worn easily. The method comprises the following steps of planning an open-type blisk channel grooving area, calculating a blade interference control line, calculating a channel grooving critical line, acquiring a channel grooving reachable processing area, planning a cutter position track, selecting disc-milling cutter geometrical parameters, and carrying out channel grooving disc-milling. The method is suitable for open-type blisk grooving disc-milling.

The invention relates to a percussive drilling construction process for a diaphragm wall passing through a rock-filled layer in a reclamation area. The process comprises the following steps of: performing setting-out survey and lead wall construction; after the positions of guide holes are determined, first continuously punching main guide holes accommodating pipe joints, from the top side of the diaphragm wall to a depth which is 0.5m greater than a designed depth by using a punch pile machine, and then forming an encrypted main guide hole at the position which is between the two main guide holes and is 1.5m away from each of the main guide holes; after the position of the encrypted main guide hole is determined, performing continuous punching from the top side of the diaphragm wall by using a punch hammer, moving the punch pile machine to a position above the gap between the two main guide holes, then punching the gap between the two main guide holes by using the punching hammer so as to form an accessory hole, and digging soil by using a grooving machine to form a groove; brushing the wall and cleaning the holes; hoisting and installing the pipe joints; hoisting a steel reinforcement cage; lowering down conduits; filling underwater concrete; pulling and reclaiming the pipe joints; and checking the quality of an enclosure structure. Thus, the construction process solves the problem of low work efficiency during the construction of the diaphragm wall under the geological condition of the rock-filled layer, has the characteristics of high work efficiency and good grooving quality, improves the safety of foundation pit construction, and effectively reduces the comprehensive construction cost.

The invention relates to a super-deep underground continuous wall which comprises an underground continuous wall body. Guide walls are symmetrically arranged on the two sides of the wall body, the cross sections of the guide walls are in the shape of an L, the lower ends of the guide walls are located on underground rock-soil, and the lug edges of the guide walls are connected with a concrete pavement. The invention further discloses a construction method of the super-deep underground continuous wall. The method includes the following steps of construction preparation, measuring, guide wall manufacturing, wall protection slurry manufacturing, grooving construction, bottom-clearing replacement, connector cleaning through wall brushing and unit slot section inspection, wherein a grabbing-milling integrated grooving method is used in the grooving construction. The method is high in grooving efficiency, short in construction time and short in groove wall soaking time, the grabbing-milling integrated grooving method is used in the grooving construction, technologies can be changed timely according to different stratum hardness situations, the characteristics that a grab bucket is high in digging speed at the soft soil layer and milling wheel can achieve rapid milling and digging footage at a hard soil layer or bed rod with standard penetration test blow count exceeding 45 are fully used, and therefore rapid and efficient grooving of the whole wall can be achieved.

The invention refers to a real-time latent-image self-monitoring method in the course of making a holographic grating. It uses arbitrary interference recording light beam of the light intensity acting on the grating as the real-time sub-image self-monotiring incident light beam, and when the ratio of the wavelength of the incident light beam and the period of the grating lambda/d<2/3, the gratinghas multiple diffraction levels, it real-time self-monitors the light beam outside the system collimated and photoelectricly multiplied in the transmission direction of self-diffractions Ir2 and Ir1 of arbitrary level sub-image, or real-timely self-monitors the autocollimating level returning according to the original route filtered, collimated and photoelectricaly multiplied.

The invention provides a construction method for an underground diaphragm wall penetrating through a super-thick silt layer, and relates to the technical field of underground project construction. For constructing the underground diaphragm wall on a project field with the stratum of the super-thick silt layer, grooving quality is different to control, and the problems that the construction efficiency is low, a consumed working period is long, and consequently the project cost is increased exist. The construction method comprises the following steps that firstly, paying offing and grooving are conducted along the central line of an underground diaphragm wall to be constructed; secondly, three-axis cement mixing piles are applied and strook into the two sides of the underground diaphragm wall to reinforce the groove walls; thirdly, a guide wall is built on the three-axis cement mixing piles; fourthly, an open groove is partitioned into a plurality of unit groove sections, holes are drilled in the unit groove sections to a intense weathered layer, when excavation is conducted to a medium weathered layer, a rotary excavating drill is replaced to smash and remove the medium weathered layer and the intense weathered layer, and then detritus is grabbed; fifthly, silt at the bottom is brought out of the unit groove sections through a reverse circulation silt removing system, and slurry is poured into the unit groove sections; sixthly, steel bar cages are installed in the unit groove sections, and concrete pouring of the underground diaphragm wall is conducted.

The invention provides a combined milling cutter used for graphite grooving. The combined milling cutter comprises a cutter shaft and 4-20 milling cutter bodies sequentially connected to the cutter shaft in a sleeving mode. Each milling cutter body comprises 4-8 tool bits. One end of the cutter shaft is fixedly connected with a drive rotating plate, and the other end of the cutter shaft is connected with a bearing supporting the cutter shaft. Positioning space rings are arranged between the milling cutter bodies so that the distances between the milling cutter bodies can be regulated. Each milling cutter body has a sleeving rotation angle ranging from 5 degrees to 30 degrees relative to the adjacent corresponding milling cutter bodies. The diameters of part of the milling cutter bodies are different. The front angle of the tool bit of each milling cutter is 8-12 degrees, the rear angle of the tool bit of each milling cutter is 18-22 degrees, and the tool bits are made of hard alloy. The combined milling cutter is rapid in grooving speed and good in grooving quality, and 4-20 grooves can be synchronously formed.

The invention relates to the field of cutting machine equipment, in particular to a multifunctional groove box cutting machine and a using method thereof. The cutting machine comprises a machine body;a motor is arranged in the machine body, is connected with a cutting saw blade through a transmission mechanism and drives the cutting saw blade to rotate to work through the transmission mechanism;and a protective cover used for wrapping the cutting saw blade is arranged on the machine body and is provided with a guide assembly used for feeding and guiding the cutting machine. According to thecutting machine and the using method thereof, the guide assembly is arranged so that the feeding smoothness of the cutting machine can be guaranteed to a certain degree, meanwhile, the guide assemblyhas a good guiding function so that the grooving efficiency can be improved to a certain degree, by means of the guiding function of a guide mechanism, the grooving straightness can be ensured, and the grooving quality can be improved.

The invention discloses single-wheel groove milling equipment and a construction method thereof for underground diaphragm wall grooving. The single-wheel groove milling equipment comprises a groove milling device and a waste soil discharging device; the groove milling device comprises a residue spraying pipe which is vertically arranged in an underground drilled hole, a single-wheel groove milling machine is disposed on one side of the residue spraying pipe, a limiting guide way is disposed on the residue spraying pipe in the length direction, and the single-wheel groove milling machine moves along the limiting guide way; the waste soil discharging device is communicated with the bottom of the residue spraying pipe, and soil layer milling is performed by the single-wheel groove milling machine through repeated translation of the residue spraying pipe in a groove section. Compared with the prior art, the single-wheel groove milling equipment and the construction method thereof for underground diaphragm wall grooving have the advantages that the equipment is suitable for being used in the geologic environment with hard stratums, and underground diaphragm wall grooving operation with a short construction period, good grooving quality and small investment can be achieved.

The invention discloses a double-station sheet cutting connecting rod fracture splitting groove device which comprises a platform, a left station machining device, a right station machining device, asecondary vertical driving device, a secondary horizontal driving device and a controller. The left station machining device and the right station machining device each comprises a clamp, a main horizontal driving device, a main vertical reciprocating driving device and a machining electrode assembly. Each machining electrode assembly comprises a connecting frame fixedly installed on the main vertical reciprocating driving device, a reel rotatably installed on the connecting frame, a sheet wound on the reel and clamping feet used for clamping the sheet, vertical through holes are formed in theclamping feet, and the sheets are sleeved with the vertical through holes and stretch out of the lower ends of the vertical through holes. The sheets are clamped and tensioned by the clamping feet todo continuous reciprocating motion in the vertical direction, meanwhile, the continuous reciprocating motion in the vertical direction and grooving machining in the horizontal direction form composite machining, continuous reciprocating in the vertical direction is auxiliary motion of grooving machining, and discharging and chip removal are facilitated.

The invention discloses a double-cutter-shaft machine tool for graphite slotting. The machine tool is provided with a motor A, a horizontal guide rail and a working platform. Two motors B, a horizontally-arranged cross beam, two stand columns, two cutter shaft assemblies and a stand column lubricating system are included; the two motors B are arranged above the cross beam, motors B penetrate the cross beam to be connected, and each motor B can drive one cutter shaft assembly to vertically move on one stand column in the Z-axis direction; and each cutter shaft assembly comprises a cantilever beam, a cutter shaft, a cutter shaft bearing seat, a bracket and a motor C. During machining, one motor B drives one cutter shaft assembly to achieve slotting of a first set of grooves, and the other motor B drives the other cutter shaft assembly to achieve slotting of a second set of grooves. The production efficiency of forming of a plurality of parallel grooves in graphite is high, the shape and size precision of the grooves is high, and the automation control degree is high.

The invention discloses a wire-cutting electric machining machine tool for series-type asymmetrical wire frame grooving, the machine tool is characterized in that a thread rolling cylinder base and a supporting pole are fixed on the machine tool bed, a thread rolling cylinder is fixed on the thread rolling cylinder base, a main wire frame is fixed on the supporting pole, and a rear guide wheel is fixed at the rear end of the main wire frame; and a front guide wheel is fixed at the front end thereof; a perforation wire frame is fixed at a certain angle at the front end of the main wire frame from one end thereof, and a rewinding guide wheel is fixed at the front end of the perforation wire frame; an auxiliary wire frame is fixed on the supporting pole and positioned at the lower part of the main wire frame, a transitional guide wheel is fixed at the rear end of the auxiliary wire frame, and a directional guide wheel is fixed at the front end thereof; a metal wire from the thread rolling cylinder perforates a work piece through the rear guide wheel and the front guide wheel and returns to the thread rolling cylinder around the rewinding guide wheel through the directional guide wheel and the transitional guide wheel; therefore, when the components are cut from inside to outside through the wire-cutting electric machining machine tool for grooving, the perforating wire is not required for each time, the production rate can be obviously enhanced, and the operation time and the operating difficulty are reduced.

The invention discloses a construction method of an underground diaphragm wall in a water-rich silty-fine sand layer. The construction method comprises the following steps of guide wall construction,tube well advanced precipitation, slurry preparation, grooving, groove cleaning and slurry replacement, wall brushing, reinforcement cage manufacturing, reinforcement cage hoisting, sand prevention layer arrangement and concrete pouring. According to the construction method of the underground diaphragm wall in the water-rich silty-fine sand layer, firstly, the self-stability of groove walls is improved through advanced precipitation of tube wells in a foundation pit which are constructed in advance; and during grooving, sodium bentonite is adopted for slurry manufacturing, and thin and tough slurry cakes are formed on the groove walls, so that the collapse resistance is improved.

The invention discloses a wire-electrode cutting electrical machine for cutting groove, wherein, the winding reel base and the support post are mounted on the body of machine, while the winding reel is mounted on the winding reel base; main guide frame is mounted on the support post; a guide wheel is mounted at the back of main guide frame whose front has a spiral guide wheel; the auxiliary guide frame has a orient guide wheel; the metal wire out from the winding reel can pass back guide wheel, work-piece, bypass spiral guide wheel, to the winding reel; said spiral guide wheel has smaller diameter than the hole of work-piece. When the invention cutting work-piece from outer to inner, the through-wire can be avoided in each time to improve the producing efficiency and reduce the operation time and difficulty.