24results about "Expansion mandrels" patented technology

The application discloses a limiting gear expansion sleeve clamp, which comprises a clamping body, a pull rod and an expansion sleeve, the expansion sleeve is fixedly connected with the pull rod, a tapered head is formed on the upper end of the clamping body, the expansion sleeve is sleeved outside the tapered head and the two are matched through a taper surface, and the limiting gear expansion sleeve clamp further comprises a lower supporting seat used for abutting against and supporting the lower end surface of a workpiece and an upper pressing seat used for abutting against and pressing the upper end surface of the workpiece, the upper pressing seat and the lower supporting seat are both hollow; a stepped surface is arranged below the tapered head of the clamping body, the lower supporting seat is sleeved on the stepped surface and detachably connected with the stepped surface; a plurality of limiting columns are further protruded on the upper end surface of the lower supporting seat, a plurality of limiting grooves are correspondingly recessed on the lower end surface of the upper pressing seat, the limiting columns penetrate through the workpiece and are inserted into the limiting grooves; and the expansion sleeve is located in a cavity enclosed by the upper pressing seat and the lower supporting seat, and the upper end of the expansion sleeve does not expose the upper pressing seat. The structure is more stable in clamping and positioning and can play a good protection role and effectively prevent the entry of waste chips.

This application relates to the technical field of submarine communication. An expanding structure for a cylinder internal unit 200 and a cylinder internal unit 200 are provided. The expanding structu

The utility model relates to mechanical processing technical field, concretely relates to a multi -process milling device. Multi -process milling device, it includes: locating plate subassembly, multiple locating surfaces, locking assembly and multiple alternative use's station surface are established on it, locking assembly is used for with different station surface cooperation to fix the rotation body to be processed on locating plate subassembly according to corresponding processing posture, clamp subassembly is used for with the different locating surface clamping cooperation of locating plate subassembly, to keep the different processing parts of rotation body to be processed in processing area. In the embodiment of the application, the complex rotary body curved surface clamping is converted into the clamping of the milling device, which simplifies the difficulty of positioning and clamping between stations, avoids quality problems caused by uneven operator clamping skills, saves a lot of time for arranging clamps and clamps between stations, improves the positional accuracy between each processing surface of the part, and optimizes the processing technology to further improve the processing efficiency.

This invention relates to the field of positioning technology for thin-walled workpieces, and discloses a positioning device for preventing offset of thin-walled workpieces based on CNC machine tools. It aims to solve the technical problems of easy deformation during positioning of thin-walled workpieces and poor adaptability of traditional clamping blocks. The device includes a CNC machine tool body, a rotating chuck, an adjustment drive assembly, a push rod assembly, and a tensioning positioning assembly. A frustum-shaped push block converts rotational motion into linear motion via a screw and nut mechanism. This, in conjunction with a limiting assembly, drives the push rod assembly to synchronously and uniformly extend and retract radially, causing a spring steel sheet with a pre-positioned section to achieve curvature self-adaptation. The pre-positioned section is a sliding compensation arc surface section, adapting to thin-walled pipes of different diameters while maintaining surface contact. The device has two sets of staggered tensioning positioning rings, forming a full-circumferential, gapless support for the inner wall of the pipe. This device avoids stress concentration problems caused by line contact, effectively preventing deformation of thin-walled pipes, balancing positioning firmness and deformation prevention requirements, and significantly improving the processing qualification rate and production efficiency of thin-walled pipes.

This invention relates to the field of parts milling technology, specifically disclosing a milling machine for precision parts machining, comprising: a milling machine body, a mounting base, a sleeve, a drive rod, a telescopic component, a contact plate, a pushing assembly, a scraper, and a rotating component. The sleeve passes through the part hole. When the drive rod rises inside the sleeve, it pushes the contact plate radially outward through the pushing assembly, thus clamping the part from the inside and avoiding interference from external fixtures. This achieves one-time clamping and machining of the external contour and the countersunk hole. After the countersunk hole is machined, the drive rod continues to rise, causing the scraper, elastically set in a groove, to precisely contact the junction of the countersunk hole under the guidance of the sleeve's frustum hole and the action of a compression spring. The rotating component drives the drive rod to rotate, causing the scraper to automatically remove internal burrs in situ. This invention effectively integrates internal tension clamping and in-situ automatic deburring functions, greatly simplifying the machining process and significantly improving the machining quality and overall production efficiency of precision parts with holes.

The application discloses a non-rotating body surface cutter mark processing method and a universal tool, and relates to the technical field of machining. The method comprises the following steps: providing a universal tool, the tool comprising a positioning disc, a tensioning assembly arranged on the positioning disc, and a fastener; positioning and clamping a non-rotating body workpiece on the tensioning assembly, and radially expanding the tensioning assembly by tightening the fastener to clamp the workpiece; installing the universal tool with the clamped workpiece on a lathe main shaft; and using a lathe cutter to turn the surface of the rotating workpiece to be processed to form a ring-shaped cutter mark. The universal tool realizes quick and stable clamping of the non-rotating body workpiece on the lathe. The application utilizes the high-speed characteristics of the lathe, uses a conventional lathe blade for processing, significantly improves the processing efficiency, reduces the cost of cutters and tools, and guarantees the stability of the processing quality, and is especially suitable for efficient production of surface cutter marks of valve seats and other parts.

The utility model discloses a kind of quick plug connector processing frock for automobile air conditioning pipeline, it includes fixed base, limit seat and plug-in component, limit seat is fixedly connected with fixed base, fixed base includes expansion sleeve, expansion sleeve is made of elastic material, one end of expansion sleeve is provided with taper hole, multiple cutting grooves are provided with on the side wall of expansion sleeve at the side of taper hole, limit seat includes the limit sleeve of expansion sleeve outside, the end corresponding taper hole of limit sleeve is provided with the positioning slot for the one end insertion of quick plug connector, plug-in component includes core rod, core rod is slidably inserted into expansion sleeve, the end of core rod is equipped with the taper segment matched with taper hole.The utility model discloses a kind of quick plug connector processing frock for automobile air conditioning pipeline, expansion sleeve is expanded outward under the pushing action of core rod to be pressed tightly and fixed between expansion sleeve and limit sleeve, clamping is reliable, and it is easy to operate, and processing efficiency is high.

The utility model discloses a fixing device for a pipeline beveling machine, and relates to the technical field of fastening structures of beveling machines. The pipe clamp comprises an outer clamping assembly, an inner supporting assembly and a rotating installation assembly, the outer clamping assembly comprises a first pipe clamp and a second pipe clamp, and the upper ends of a first side handle and a second side handle on the side faces of the sides, away from the V-shaped opening end, of the first pipe clamp and the second pipe clamp are each fixedly provided with a stand column. The upper end of the rotary installation assembly is arranged on the stand columns at the upper ends of the first side handle and the second side handle, and the lower end of the rotary installation assembly is fixedly connected with the upper end of the inner supporting assembly. According to the utility model, the cutting mechanism of the beveling machine is arranged in the rotary mounting assembly, so that the outer clamping assembly can clamp pipelines with different sizes; the inner supporting assembly is connected in the pipeline in a sleeved mode, the rotating shaft of the rotating installation assembly coincides with the axis of the pipe barrel of the pipeline, and therefore the circumferential rotating axis of the beveling machine in the rotating installation assembly coincides with the axis of the pipe barrel of the pipeline, and the situation that beveling treatment of the pipeline is not uniform is avoided.

The utility model provides a kind of spherical special machine clamp with self-lubricating wear-resistant bushing belongs to mechanical processing fixture technical field, the spherical special machine clamp with self-lubricating wear-resistant bushing includes modularized expansion sleeve assembly and self-lubricating friction pair, the modularized expansion sleeve assembly includes 3 inch shaft, 3 inch expansion sleeve, 3 inch pull rod and 3 inch ball, for realizing quick disassembly and assembly by axial pre-tightening spring;The inner hole of the 3 inch expansion sleeve is conical surface cooperation with the 3 inch ball, the replacement of the 3 inch expansion sleeve is facilitated;Self-lubricating friction pair adopts graphite copper sleeve, it is arranged between the 3 inch pull rod and clamp, for realizing oil-free lubrication;The utility model provides a kind of spherical special machine clamp with self-lubricating wear-resistant bushing, can solve the problem that traditional spherical clamp is more used fixed expansion sleeve structure, replacement specification needs integral disassembly and assembly clamp, time-consuming and labor-consuming;Friction part is easily worn due to lack of self-lubricating design, leading to frequent maintenance of fixture precision decline.

This invention relates to the technical field of tooling fixtures, and more particularly to a guide sleeve machining fixture and a CNC lathe, comprising an integral kit and a replacement kit. The replacement kit includes an inner tensioning component and an outer clamping component. The guide sleeve machining fixture can switch between an inner tensioning state connected to the inner tensioning component and an outer clamping state connected to the outer clamping component. Its advantage is that the fixture can meet the usage requirements for machining the inner and outer walls of the guide sleeve, ensuring the fixture's adaptability to guide sleeve machining. Because the first and second expansion sleeves are in surface contact with the guide sleeve, and because the first and second expansion sleeves are rigid, they have higher clamping accuracy compared to elastic jaws in the prior art; compared to multi-jaw chucks in the prior art, they have a larger contact area, making it less likely to cause guide sleeve deformation, thereby improving the machining quality and accuracy of the guide sleeve.

This invention discloses a high-precision double-tensioning jig for a long inner hole sleeve, comprising a base, a double-tapered mandrel fixed on the base, a pull shaft, and a pull sleeve. The pull sleeve is fixedly connected to the pull shaft by a fastener passing through the double-tapered mandrel. A lower expansion sleeve is fitted onto the lower part of the double-tapered mandrel, and the lower end of the lower expansion sleeve engages with the upper part of the pull sleeve. An upper expansion sleeve is engaged with the top of the double-tapered mandrel. A conical pull rod extends longitudinally through the upper expansion sleeve and the double-tapered mandrel. A limit block is fixedly connected to the lower end of the conical pull rod. A positioning hole for engaging the limit block is provided on the upper part of the pull shaft. An elastic component is provided between the limit block and the upper wall of the double-tapered mandrel. When the pull shaft moves downward, it indirectly drives the lower expansion sleeve to squeeze the double-tapered mandrel and tension the lower part of the sleeve workpiece. The contracting elastic component spontaneously drives the conical pull rod downward, causing the head of the push rod to squeeze and tension the upper part of the workpiece with the upper sleeve, thereby achieving stable clamping of the entire sleeve.

This utility model discloses a positioning structure for machining the outer diameter of a sleeve on a lathe, including a lathe bed and a positioning assembly. A motor housing is mounted on the top of the lathe bed, and a sleeve is disposed on the top of the lathe bed. The positioning assembly is located on the top of the lathe bed and is used to clamp and fix the sleeve. The positioning assembly includes a spindle, a positioning structure, and a drive structure. The spindle is rotatably connected to the motor housing and is located inside the sleeve. The positioning structure is located outside the spindle and is used to clamp and position the sleeve. The drive structure is located on the spindle. This utility model utilizes the cooperation of the spindle, drive structure, positioning structure, and mounting bolts. A tensioning plate clamps the inner wall of the sleeve, a support block supports the spindle, and the sleeve can be installed or removed. This facilitates integration with the lathe spindle. By clamping the sleeve from within, it achieves clamping and fixing of the sleeve, facilitating direct machining of the outer diameter of the sleeve.

The utility model discloses a kind of inner spline large diameter centering expansion sleeve, including large diameter expansion sleeve outer gear;Large diameter expansion sleeve outer gear includes arc top triangular tooth body, the tooth top of arc top triangular tooth body can be contacted with the inner spline large diameter of flange plate to realize large diameter centering.The tooth top left and right sides of arc top triangular tooth body are also provided with sharp inside arc surface respectively.Smooth transition between sharp inside arc surface and tooth top, smooth transition between sharp inside arc surface and tooth surface.The large diameter expansion sleeve outer gear in the device of the utility model adopts arc top triangular tooth shape, can effectively guarantee that expansion sleeve is expanded to the large diameter of the inner spline tooth of flange plate, realize the clamping processing of flange plate with inner spline tooth large diameter centering as design scheme;Meanwhile, the tooth top left and right sides of arc top triangular tooth are also provided with sharp inside arc surface, while guaranteeing the tooth groove fillet of the inner spline tooth of flange plate during clamping, effectively avoid that expansion top misplacement to the inner spline large diameter of flange plate when installing, further guarantee processing precision.

The application relates to a turning tool for enhancing the rigidity of a flexible cylindrical part, and relates to the field of turning tool technologies, which comprises an inner support pipe arranged in the inside of the flexible cylindrical part and a opening mechanism for opening the inner support pipe, and a first opening is arranged on the inner support pipe. An outer sleeve pipe is arranged on the outside of the flexible cylindrical part, a second opening is arranged on the outer sleeve pipe, and the outer sleeve pipe is used for being clamped by a lathe. The application realizes the opening of the inner support pipe through the opening mechanism, so that the inner support pipe supports the inside of the flexible cylindrical part, thereby enhancing the rigidity of the flexible cylindrical part. Through the synergistic effect of the inner and outer structures, the stability of the flexible cylindrical part in the turning process is effectively improved, the problems of deformation and shaking caused by insufficient rigidity are avoided, and the machining precision and efficiency are significantly improved.

The application provides a kind of inner cavity positioning device for numerical control processing, it is related to numerical control processing technical field, including: installation support piece, positioning drive part and positioning feedback part;The movable positioning piece is provided with a circle, and a circle movable positioning piece is installed on installation support piece, and a circle movable positioning piece is used to support the inner cavity of workpiece;The positioning drive part is installed on installation support piece, and the positioning drive part is used to drive a circle movable positioning piece;The positioning feedback part is installed on installation support piece and positioning drive part, and the positioning feedback part is used to feedback the positioning result of workpiece;When the positioning detection ring cannot follow the drive screw and move left at the same time, the positioning detection ring automatically presses the control switch, can prompt staff to reposition workpiece, ensure the positioning accuracy of workpiece;Solve the problem that workpiece cannot automatically send prompt when it is not in accurate position after positioning, resulting in position deviation of workpiece after positioning, affect the machining precision of workpiece.

This invention discloses a processing device for motor housings, belonging to the field of motor processing technology. The processing device includes an operating table, which is a box-type structure. A mounting plate is slidably connected inside the operating table, and an expansion sleeve is mounted on the mounting plate. The expansion sleeve rotates uniformly on the mounting plate via a drive assembly. A waist hole is opened on the upper surface of the operating table to expose the expansion sleeve, and a slide is provided on one side of the upper surface of the operating table. A milling machine is slidably connected to the front surface of the slide, and an end seat is provided on the opposite side of the slide. A three-jaw chuck is mounted on the front surface of the end seat. This invention adopts a clamping method of conical wedge engagement + radial expansion. The fastening bolt drives the outer conical sleeve to slide down along the conical part of the inner conical sleeve. The outer conical sleeve expands radially evenly and squeezes the inner wall of the motor housing, achieving coaxial fixation of the workpiece. The clamping force is uniform, avoiding deformation of the motor housing due to excessive local force, while ensuring the coaxiality accuracy of the workpiece processing. The positioning sleeve overlaps with the end of the motor housing to achieve axial pre-positioning of the workpiece.

A system for interchanging end effectors on a robot of a drill rig. The system comprises a robot (50), a coupling mechanism (100), and one or more end effectors (60). The robot (50) comprises a base portion (52) configured for securing to a drill floor of the drill rig, a shoulder portion (54) coupled to the base portion (52), an articulated arm (56) operably coupled to the shoulder portion (54) at a first end and extending to a second end, and a wrist portion (58) arranged on the second end of the articulated arm (56) and being adapted for selectively engaging and disengaging an end effector (60). The coupling mechanism (100) comprises a robot portion (102) and a tool portion (104). The one or more end effectors (60) are arranged at a setting location accessible by the wrist portion (58) of the robot (50) using the coupling mechanism (100). The robot (50) is configured to use the one or more end effectors (60) to perform selected operations on the drill rig and is further configured to use the coupling mechanism (100) to interchange end effectors (60) to use selected end effectors (60) that correspond to the selected operations.

The application discloses a kind of automatic centering function's expansion clamp for milling applied to workpiece fixture field, and the self-centering expansion clamping is realized by conical part to push moving plate, cooperate variable support assembly, when finishing machining is carried out to thin-walled part, respectively provide support for the outside and inside of thin-walled part, reduce deformation, and after variable support assembly solidification setting, cooperate electric push rod to realize the controllable lifting of workpiece, so that thin-walled part exposes bottom disc, it is convenient to carry out corresponding finishing machining to the surface of thin-walled part without the interference of bottom disc, effectively reduce the deformation caused by milling finishing, and can be satisfied with the machining demand of inner and outer surface by switching support position respectively, with precision and flexibility, by adding telescopic sleeve plate and extension block with ball at the end of moving plate, so that the effective working surface of inside surface machining of thin-walled part is maximized, subsequent milling cutter can be avoided when processing interference, improve the convenience and process integrity of inside surface finishing operation of thin-walled part.

This invention provides a device and method for quickly locking eccentric shaft-type parts after adjustment. An eccentric shaft is installed inside a support. A tensioning sleeve, spacer sleeve, and tensioning sleeve two are sequentially fitted onto the outer circumference of the eccentric shaft and mate with the inner hole on one side of the support. A tensioning sleeve three, spacer sleeve two, and tensioning sleeve four are sequentially fitted onto the outer circumference of the eccentric shaft and mate with the inner hole on the other side of the support. Rollers are installed on the outer circumference of the eccentric shaft. A flange first is positioned at the outer end of tensioning sleeve two, and a flange second is positioned at the outer end of tensioning sleeve four. A screw passes through the center of flange first and the eccentric shaft, with the screw tip threaded into the central threaded hole of flange second. Flange first and the eccentric shaft are synchronously connected by a pin. Using this device, only one screw needs to be loosened to release the locking flanges at both ends of the eccentric shaft, simultaneously releasing the tensioning sleeves and loosening the positioning outer circumference. After adjusting the rotation of the eccentric shaft, only the screw needs to be tightened to press the flanges against the tensioning sleeves, making adjustment convenient and quick.

This utility model belongs to the field of mechanical manufacturing technology and relates to a rotor hole system anti-deformation machining device without correction. It includes a support base, the upper surface of which serves as the end face of the bottom of the supporting part and is fixedly installed with an angular contour pin; several elastic chucks that can deform are fixedly installed on the upper surface of the support base, the elastic chucks cooperate with the central inner hole of the part, the center of the support base is provided with an origin correction hole, and the front surface of the support base is provided with a horizontal reference correction band; this utility model can overcome the deformation problem caused by traditional clamping, provide a good cutting state for the tool during the machining process, and can accurately position the deflection angle of the rotor hole system, thereby improving machining efficiency while ensuring the accuracy requirements of the process dimensions of batch parts.

The utility model provides a kind of high-precision liquid expansion clamp of flexible gear machine processing, it is related to harmonic speed reducer processing field, including fixture body and sealing cover;Oil circuit part, inside is full of hydraulic oil, oil circuit part includes flow channel a and transition oil circuit, flow channel a is located in the sealing gap formed by fixture body and sealing cover, flow channel a and transition oil circuit are communicated, the deformation ability of one side wall of flow channel a is higher than another side;Starting part is set at the port of transition oil circuit, can be moved along the extension direction of transition oil circuit, to extrude the hydraulic oil in transition oil circuit to move to flow channel a, the present application adopts hydraulic oil pressure accurate positioning and can be respectively clamped to flexible gear from inside and outside two sides, simultaneously, user can select to press by hand, can also select to adopt machine tool automatic pressure application. Through machine tool automatic pressure application, the labor intensity of operator can be reduced, and the high positioning accuracy and stable clamping capacity of workpiece are also guaranteed.

The present application relates to the field of machine tool accessories, and particularly discloses a small-diameter liquid expansion clamp, a manufacturing method thereof and an expansion amount control method, aiming to enhance the strength of a thin-walled structure and ensure the uniformity of expansion thereof. The diameter of the expansion part of the small-diameter liquid expansion clamp is less than or equal to 4 mm, which can meet the demand of high-precision positioning and clamping of micro parts. The expansion part is in a cylindrical structure, and the side cavity wall of the expansion cavity is in a continuous and closed wave ring structure composed of alternating thickening parts and thinning parts. The thickening parts are used as reinforced inner ridges to improve the rigidity and fatigue resistance of the expansion part. The thinning parts are used as elastic connection zones to ensure that the expansion part can produce uniform radial expansion under the action of hydraulic pressure. Not only is the clamping force sufficient, but also the problem of local stress concentration can be avoided, and high-precision positioning and clamping can be achieved. In addition, by setting the closed end of the expansion part as a solid growth part, the axial elongation effect of the entire expansion part under the action of internal hydraulic pressure can be reduced.