57 results about "Cross pin" patented technology

A universal double joint is provided comprising: a drive rotatable bearing having a first spherical surface formed of a plastic material; a proximal metal cross pin configured to receive an imparted drive force and to impart the imparted drive force to the first rotatable bearing; a driven rotatable bearing having a second spherical surface formed of a plastic material; and a distal metal cross pin configured to receive the imparted drive force and to impart the imparted drive force to the second rotatable bearing.

A framing system for a construction set comprising a number of interchangeable elements which can be arranged to construct a variety of three-dimensional structures, as well as individual, stand-alone floors, which in turn are adapted to be stacked on one another. In some embodiments, the system comprises at least one central unit, a plurality of outer mid-columns, at least one tie beam corner unit, and / or at least one curved beam unit which cooperate to form a variety of stand-alone floors. The system comprises additional components which increase the stability of the construction set, including but not limited to internal corner brackets, cross pins, cross studs, square panels, and rectangular panels.

A framing system for a construction set comprising a number of interchangeable elements which can be arranged to construct a variety of three-dimensional structures, as well as individual, stand-alone floors, which in turn are adapted to be stacked on one another. In some embodiments, the system comprises at least one central unit, a plurality of outer mid-columns, at least one tie beam corner unit, and / or at least one curved beam unit which cooperate to form a variety of stand-alone floors. The system comprises additional components which increase the stability of the construction set, including but not limited to internal corner brackets, cross pins, cross studs, square panels, and rectangular panels.

The utility model relates to a universal module power supply tool applied to the field of power supply tools, which comprises a base, an adapter plate, a three-combination screw, a connector, a cushion block, a crown spring female hole, a hexagonal single-pass stud, a heat conduction pad and a heat dissipation cover plate. The test process is accelerated through three-hole same-potential test point switching, the production efficiency is greatly improved, the cross needle of the module power supply only needs to be inserted and disassembled once, the upper surface and the lower surface are in soft contact, the appearance of the cross needle and the power supply is effectively protected, the holes in the cushion block, the base and the switching plate provide convenience for the sealant pouring process, and the production cost is reduced. The heat dissipation teeth on the base enable an extra heat dissipation device to be not needed during testing, the tool can be compatible with all standard packaging and most customized module power supplies in the power supply industry, the part machining number is reduced, the tool manufacturing cost is reduced, and meanwhile the production cost is comprehensively saved for enterprises by protecting the cross pin and improving the production efficiency.

The utility model discloses a bridge crane ascending limit heavy punch which comprises two shackles, the two shackles are symmetrically arranged, the shackles are respectively clamped and wound on a hoisting main steel wire rope on two sides of a hoisting mechanism balance wheel, each shackle comprises a transverse pin and a U-shaped bent ring, the U-shaped bent ring is horizontally arranged, and the transverse pin is connected with the U-shaped bent ring. Pin holes allowing the transverse pin to penetrate through are formed in the open ends of the outer sides of the two U-shaped bent rings respectively, the inner sides of the U-shaped bent rings are in threaded connection with the transverse pin, the U-shaped bent rings are fixed through the connecting transverse plate, a semicircular lifting lug is arranged at the center balance position of the top of the connecting transverse plate, and the opening direction of the semicircular lifting lug is perpendicular to the plane of the connecting transverse plate. By means of the double-shackle symmetrical structure design, the problem that a traditional limiting heavy hammer rotates and winds due to single-point hoop fixing is fundamentally solved, the two U-shaped bent rings and the interceptable connecting transverse plate are rigidly welded to form a balance system, and the heavy hammer is kept in a zero-rotation state when a lifting steel wire rope rotates.

The utility model discloses a rotatable lifting appliance capable of automatically adsorbing a steel plate. The rotatable lifting appliance comprises a lifting beam and a plurality of rotating mechanisms, the multiple rotating mechanisms are located on the lower portion of the hanging beam and arranged at intervals in the length direction of the hanging beam, and the rotating mechanisms are connected with the electromagnetic chucks through shackles. The rotating mechanism comprises a shell, a vertical rod is rotationally connected into the shell through a bearing seat and a bearing, a through hole allowing the shackle to penetrate through is formed in the lower portion of the vertical rod, a cross pin hole is formed in the lower portion of a rod body of the vertical rod, and the shell is provided with a pin shaft which is matched with the cross pin hole and used for locking the vertical rod. The lifting device is convenient to operate, safe to use and high in efficiency, the electromagnetic chuck can be rotationally adjusted, steel plates can be conveniently discharged, lifted and lifted after being discharged, the lifting device is used for the steel plate transfer procedure, and the operation efficiency is improved.

The utility model relates to the technical field of hinges, in particular to a glasses hinge and glasses. The hinge body is of a bent structure, an insertion cylinder is arranged on a horizontal section of the hinge body, a threaded groove is formed in the inner side of the insertion cylinder, a pointed cone part is arranged at the top end of an inclined section of the hinge body, the arc part is integrally formed on the side wall of the inclined section of the hinge body, a through hole is formed in the middle of the arc part, and a through groove opposite to the through hole is formed in the side face of the arc part. According to the utility model, the transverse pin is arranged on the inner side of the hinge body through the elastic pressing piece, and the transverse pin is inserted into the rotating hole formed in the glasses leg, so that a metal screw is not required to be used for hinging the glasses leg, and the stability of connection between the hinge and the glasses leg in the long-term use process is ensured; and the transverse pin can be quickly driven to retract into the through hole formed in the hinge body under the matching of the connecting plate and the arc-shaped strip, so that once the glasses legs are damaged, the glasses legs are convenient to disassemble and replace, and the maintenance efficiency is improved.

A self-loading pistol with a pre-cocked firing pin and with an assembly for safe disassembling, comprising a trigger bar (7) with a peripherally at least partly closed frame part (7c) to surround a pistol magazine (39). The frame part (7c) having, with respect to the shooting direction, a vertical surface (7m) arranged on its rear side, and on the front side, a lug (7f) for catching a firing pin (3). The trigger bar (7) is arranged in the pistol frame on a cross pin (29) that crosses the vertical surface (7m). The trigger bar (7) is moveable by means of a trigger (15). In the pistol frame, over the trigger bar (7), a disassembling lever (11) is arranged that has a button (11d) and a pivot (11a) that carries a cam (18) for engagement with the trigger bar (7). The cross pin (29) passes through a guide cam (7e) arranged in the vertical surface (7m). The vertical surface (7m) has, at its side facing the magazine (39), a contact surface (7i) for the magazine (39). An arm (7k) protrudes from the frame part (7c) at its front side with respect to the shooting direction. A pulling thumb (7a) and at a distance from it, a support stop (7j) being arranged at the free end of the arm (7k). The cam (18) has a nose (18a) at one side and a protrusion (18b) at the opposite side. The nose (18a) reaches between the pulling thumb (7a) and the supporting stop (7j) of the trigger bar (7). The protrusion (18b) is bringable into a recess (1a) at the facing side of the slide (1).

The smashing device comprises a cutter shaft, the cutter, a sleeve base and an elastic limiting piece, the cutter is fixedly connected to the outer wall of the sleeve base, and a clamping groove is formed in a lower opening of the sleeve base; a transverse pin is arranged on a lower shaft rod of the cutter shaft, an annular groove is formed in a top shaft rod of the cutter shaft, and the elastic limiting piece is connected into the annular groove in a sleeved mode and connected with the top of the cutter shaft in a fastened mode. The sleeve base drives the cutter to be sleeved into the cutter shaft from top to bottom, the clamping groove is clamped into the transverse pin to limit the radial movement of the sleeve base in a matched mode, a top shaft rod of the cutter shaft drives the elastic limiting piece to stretch out of an upper shaft hole of the sleeve base, and the upper shaft hole of the sleeve base is in interference fit with the elastic limiting piece. The elastic limiting piece presses the top face of the sleeve base to limit axial movement of the sleeve base, and the cutter is fixedly connected to the cutter shaft. Due to the adoption of the structure, the cutter on the crushing device is very convenient to disassemble, the structure is very simple, and the crushing device is more suitable for being applied to the wall-breaking food processer.

The utility model relates to a reamer protective sleeve in a femoral neck power cross nail system operation, which comprises a handle, a handle base station, a sleeve body, observation holes, scale marks and a depth gauge, the end part of the handle is fixedly connected with the handle base station, the handle base station is fixedly connected at the upper end of the sleeve body, the side edge of the sleeve body is uniformly provided with a plurality of observation holes, and the scale marks are arranged on the sleeve body. The observation holes arranged along the axis of the sleeve body are arranged in a row, and the distance between the observation holes in each row is five to fifteen millimeters. According to the utility model, the observation holes and the depth measuring scale are additionally arranged on the sleeve body, so that the cutting depth can be known in time during an operation, the operation efficiency can be effectively improved, and the operation safety can be ensured.

The utility model relates to the technical field of petroleum drilling, in particular to a hydraulic tong elastic centralizing device which comprises a bottom layer air cylinder, a middle air cylinder arranged in the bottom layer air cylinder, an air cylinder rod arranged in the middle air cylinder, a connecting base fixedly connected to the bottom of the bottom layer air cylinder, a centralizing block arranged in the connecting base, and a positioning hole formed in the centralizing block. A fixing ring is fixedly connected to the upper end of the outer wall of the bottom layer air cylinder, a U-shaped plate is fixedly connected to the outer wall of the fixing ring, connectors are movably connected to the inner wall of the U-shaped plate and the inner walls of the linkage grooves, and connecting rods are fixedly connected to the outer walls of the connectors. The other ends of the connecting rods are fixedly connected with baffles, and a spring is arranged between the two baffles in the same group. According to the utility model, the torsion at the fixed tail pile and the connecting cross pin is reduced, the cylinder rod is prevented from being bent or broken due to overlarge stress, and the safety of equipment and personnel is ensured.

The present invention discloses a machine - liquid integrated motion control system for a collection device of a sugarcane harvester, which is installed on the main body of the sugarcane harvester. The system includes a collection device, a control device, and a self - locking structure. The collection device includes a bracket, a rocker arm, a connecting rod, a hopper, and a swing bracket. The rocker arm and the connecting rod are respectively hinged between the bracket and the swing bracket, and the hopper is hinged to the swing bracket. The control device includes a tipping cylinder, a pushing cylinder, a hydraulic oil circuit, a reversing valve, and an oil pump. The pushing cylinder is hinged between the bracket and the rocker arm, the tipping cylinder is hinged between the hopper and the swing support. The tipping cylinder and the pushing cylinder are arranged in parallel and are respectively connected to the hydraulic oil circuit through the reversing valve. The self - locking structure includes a pull rod and a lock catch. A cross pin is provided on the hopper. The pull rod is hinged between the rocker arm and the lock catch, and the lock catch is hinged to the swing bracket and is buckled upward on the cross pin. The present invention combines hydraulic control with machinery, simplifies the hydraulic system of the collection hopper during multiple mechanical actions, and reduces the layout difficulty and construction cost of the hydraulic system.

The utility model discloses a collecting device for composite membrane production, which comprises a rolling structure, a driving structure and a limiting structure, the rolling structure comprises a rolling frame, a rotating shaft slidably mounted on the left side surface of the rolling frame, and two rolling components respectively rotatably mounted on the surface of the rotating shaft, and two through grooves allowing the two winding assemblies to pass through are formed in the front face of the winding frame. By arranging the winding structure and the driving structure, a cross pin can be driven to be separated from a cross slot by pulling a baffle ring to the right side, then a rotating ring can be driven to rotate along the axis of a rotating shaft by rotating a winding shaft, a wound composite film can be taken out of the winding shaft, and at the moment, the other winding shaft on the winding frame continues to wind the composite film. According to the device, the fixing assembly is matched with the rotatable connecting shaft, the winding shaft fully wound with the composite film can be rotated to the position in front of the winding frame, material taking can be conducted on the idle winding shaft while the other winding shaft is not affected to wind the composite film, and then the production efficiency can be improved.

The utility model discloses a portable elevator hook device for H-shaped steel beam, which can be recycled, comprising a hook body, characterized in that: the hook body is provided with two, and each hook body is hinged with a hook claw through a pin; the hook claw is rotatably connected with an adapter plate through the pin; and the two adapter plates are rotatably connected with a shackle through a cross pin. The utility model has the advantages of simple installation and use, repeated recycling, shortened processing period, saved materials and reduced cost.

The present application belongs to the crane technical field, disclose a kind of container turn lock automatic locking mechanism, including connecting block (1), cam (2), turn lock (3), cross pin shaft (4), oil cylinder (5), oil cylinder bearing (6), turn lock rotary rod (7) and turn lock connecting rod (8);The connecting block (1) is "concave" type structure, and connecting hole is provided at its opening, and the opening of two connecting blocks (1) is opposite and is connected by cross pin shaft (4);One of connecting block (1) is fixedly connected with the right side of cam (2), and the other connecting block (1) is fixedly connected with the piston rod of oil cylinder (5);The other end of oil cylinder (5) is hinged with mechanism fixed plate right end by oil cylinder bearing (6);The mechanism fixed plate is fixedly connected with container.The present application is safe and reliable in structure, realizes the quick automation docking of spreader and container, realizes the automatic control of container in the process of quick transfer.

The utility model discloses a steering engine bending moment measuring test device, which belongs to the technical field of experimental equipment, and comprises a bottom plate and an adapter, the upper surface of the bottom plate is connected with a support frame, one end of a rotating shaft is connected with a connecting rod, the inner side of the connecting rod is provided with a counterweight hole, the inner side wall of the connecting rod is in threaded connection with a locking bolt, and the locking bolt is in threaded connection with the rotating shaft. One end of the connecting rod is provided with an adapter, the other end of the connecting rod is provided with a cross groove, one side of the adapter is connected with a cross pin, a fixing plate is arranged outside the adapter, and the adapter, the cross groove, the cross pin and the connecting rod are matched, the adapter is connected with a steering engine, and the balancing weight in the connecting rod is used for installing the balancing weight. The cross-shaped groove is provided with a space for containing the cross-shaped pin, and the adapter is connected with the cross-shaped groove through the cross-shaped pin, so that the adapter forms an independent part, the adapter can be conveniently disassembled from the connecting rod, and the adapter can be conveniently replaced.

The utility model discloses a B-pillar lower trim panel, and relates to the technical field of automobiles. Comprising a B-pillar lower decoration plate body, a Z-direction limiting rib is arranged on one side of the joint of the B-pillar lower decoration plate body and a B-pillar upper decoration plate, the B-pillar lower decoration plate body and the B-pillar upper decoration plate are clamped and fixed through a clamping structure, and an included angle of 1-3 degrees is formed between the clamping face of the clamping structure and the positive X direction downwards. According to the utility model, the limiting structure combination is adopted, so that the control gap and the surface difference can be met at the same time, and compared with the original structure, the cross pin can be misplaced during optimized installation and the installation is not in place, and the limiting structure is better in installation.

The utility model relates to the technical field of milling equipment, in particular to an anti-chip-blocking angle milling head with an internal pressure structure, which adopts the technical scheme that the anti-chip-blocking angle milling head comprises a driving cutter handle, an enclasping ring is mounted at the front end of the driving cutter handle, a positioning pin sleeve is connected to the lower end of the enclasping ring, and a transverse pin is connected to the position, close to the positioning pin sleeve, of the lower end of the driving cutter handle; one side of the positioning pin sleeve is connected with a positioning pin, the positioning pin is inwards connected with a spring, and an internal thread cylindrical pin is installed on the connecting portion between the positioning pin sleeve and the enclasping ring. According to the positioning mechanism, the positioning pin, the built-in spring and the improved positioning mechanism are arranged, so that the use reliability of the positioning mechanism is greatly improved, the service life of the positioning mechanism is greatly prolonged on the premise that functions are not changed and the cost is not increased, and the problem that the positioning plectrum rebounds unsmoothly in the machining process of the angle milling head is solved. The installation problem caused by the fact that positioning cannot be achieved is avoided, and better-quality products are provided for customers.

The utility model relates to a hoisting and lifting tool technical field, especially a kind of U-shaped shackle for crane hoisting operation, it includes U-shaped ring, connecting cross pin, U-shaped ring includes first side plate portion, arc plate portion and second side plate portion connected in turn, connecting threaded through-hole is provided on first side plate portion, connecting through-hole is provided on second side plate portion, connecting cross pin includes connecting outer thread section and connecting column section connected in turn, connecting cross pin is set into connecting threaded through-hole, connecting through-hole, by being provided with cylindrical sleeve ring, cylindrical sleeve ring is rotatably sleeved on connecting column section, when the direction of U-shaped shackle is wrongly used due to the inattention of operator, steel wire rope will contact with cylindrical sleeve ring, cylindrical sleeve ring rotates around connecting column section with force steel wire rope, avoid connecting outer thread section, connecting column section to appear rotation, effectively reduce the possibility that connecting cross pin appears to fall off, improve the use safety of U-shaped shackle.

The utility model relates to the technical field of sand filling cylinders, in particular to a sand filling cylinder for detecting the compaction degree of a roadbed and a pavement, a positive funnel is mounted at the bottom of the inner side of the sand filling cylinder, a rotating piece is mounted at the top of the positive funnel, a connecting cylinder is mounted at the bottom of the sand filling cylinder, and a limiting cylinder is mounted in the connecting cylinder; according to the sand filling device, the blocking piece is arranged at the end, close to the sliding groove, of the transverse pin, so that in the sliding process of the transverse pin, measuring sand in the sand filling cylinder can be blocked, the measuring sand cannot overflow out of the sand filling cylinder, and the measuring sand is prevented from overflowing out of the sand filling cylinder; the transmission gear drives the limiting cylinder and the reverse funnel to vertically move, so that the reverse funnel and the forward funnel are in butt joint, meanwhile, the clamping block is matched to enable the reverse funnel and the forward funnel to be connected more tightly, sand cannot overflow in the sand discharging process, and the measurement result is more accurate.

The invention discloses a connecting bolt locking device for a coal mine rail transport vehicle, which is characterized by comprising a locking device body (7), a connecting bolt (4) and a collision head seat (6), the locking device body (7) comprises a spring base (1) and a gland (5), two through grooves (5-1) are formed in the gland (5), and two non-through grooves (5-2) which do not penetrate through the gland are formed in the bottom face of the gland (5). The spring base (1) is fixedly connected with the gland (5), the spring (2) and the floating ring (3) are installed in the spring base (1), and the floating ring (3) is located between the spring (2) and a transverse pin (4-1) connected with the plug pin (4). The locking device body (7) is mounted on a collision head seat (6) of a transport vehicle; an inner hole of the spring (2) is aligned with a collision head seat bolt hole (6-1); and the connecting bolt (4) adopts a special bolt provided with a transverse pin (4-1). The connecting bolt for the transport vehicle can be effectively locked, and the connecting bolt is simple in structure and convenient to operate and use.

The application provides a quick sleeve pressing device and method for a drill template type tire, which comprises a pressing fixing assembly and a sleeve pressing assembly. The pressing fixing assembly is used for fixing the drill template type tire to avoid movement of the drill template type tire during sleeve pressing. The sleeve pressing assembly comprises a mandrel, sleeve pressing guide columns and locking cross pins. The main body of the sleeve pressing guide column is a guide column, and a mounting plate is fixed to the lower end of the sleeve pressing guide column. The bottom surface of the mounting plate is fixed with the sleeve pressing guide column through the locking cross pins. The number and position of the sleeve pressing guide columns correspond to drill template holes on the drill template type tire, and the sleeve pressing guide columns are axially perpendicular. The sleeve pressing guide columns are used for mounting the bushings to be pressed. The application no longer needs to knock each drill sleeve for sleeve pressing, and all drill sleeves can be pressed into the drill template type tire by one-time knocking.

The passive padlock comprises a lock body and a lock beam, the fixed end of the lock beam is fixed in the lock body, a locking structure, a driving structure and a passive controller are arranged in the lock body, the locking structure is connected with the outer side of one end of the lock beam in a separated mode, and the passive controller is connected with the driving structure. The driving structure is in driving connection with the locking structure; the locking structure comprises a transverse pin of which one end is movably clamped with the lock beam and a transverse spring of which one end is connected with the other end of the transverse pin; the driving structure comprises a passive lock cylinder assembly, a lock sleeve arranged on the outer side of the passive lock cylinder assembly in a sleeving mode and an electronic tag connected to the outer bottom end of the lock sleeve in a clamped mode, and the passive controller is fixed to the passive lock cylinder assembly. According to the passive padlock capable of being opened and closed based on the opening and closing state authorization and the active key capable of being authorized, an unlocking log and a locking log can be obtained at the same time, and the technical problem that the key mistakenly obtains the unlocking log and the locking log can be solved.

A multi-piece umbrella pole that includes first and second pole sections that are assembled into an elongate umbrella pole. The pole sections include an alignment notch and cross pin for facilitating assembly of the two pole sections. An outer sleeve includes a button assembly that can actuate a detent pin for coupling or decoupling the pole sections. The outer sleeve can also include an actuator for a tilt mechanism that angles a canopy portion of the umbrella assembly.

The utility model relates to the technical field of crane lifting, and discloses an electrode bar lifting appliance for a crane, which comprises a lifting ring, a screw rod arranged at the bottom, a shackle arranged at the bottom of the screw rod, and a lifting hook arranged at the bottom of the shackle, the connecting assembly is arranged at the bottom of the screw rod and comprises a first connecting seat in threaded connection with the outer side of the screw rod, a rotating ball is rotationally connected into the first connecting seat, a second connecting seat is fixedly connected with the outer side of the rotating ball, and a transverse pin is in threaded connection with the bottom of the second connecting seat; through the arrangement of the connecting assembly, the lifting ring, the shackle and the lifting hook, the high-frequency and high-precision electrode bar lifting requirement of the electroslag furnace can be met, and production safety and process continuity are guaranteed.

The invention relates to the technical field of chip packaging, in particular to a rib cutting forming method of an IDF lead frame. Comprising the following steps that S1, reverse feeding is conducted, specifically, a frame product to be processed is fed in the mode that pins face downwards, and the product is placed at the feeding position of a conveying belt; s2, automatically detecting an image for the first time: acquiring image information of a product by an industrial camera, comparing the image information with information of a standard template after processing, and judging a feeding direction and the number of pins; s3, the waste plastic of the glue injection opening is punched in a segmented mode, specifically, a segmented tool bit is adopted for a rib cutting stamping die, and the waste plastic of the glue injection opening is removed in a segmented mode; and S4, cutting off connecting ribs and pin lengths: pressing down the punching die, cutting off the connecting ribs and waste plastics of adjacent pins in a non-crossed pin area in the frame product, cutting off the connecting ribs and waste plastics of the adjacent pins in a crossed pin area, and synchronously cutting off redundant pin lengths of the adjacent pins. Compared with the prior art, breakage of a plastic package body during generation is reduced, the problem of pin pseudo soldering caused by burrs of a formed bottom plate is solved, the production efficiency is improved, and the production cost is reduced.

The present invention provides an accurately positioned punching pliers, which includes two fixed pieces with the same specifications; an upper handle is fixedly connected to the fixed piece, and a lower handle is movably connected; a punching component is movably connected between the two fixed pieces through a cross pin; a positioning device is fixedly connected below the two fixed pieces; the positioning device includes a U-shaped block, a positioning hole is provided in the upper half of the U-shaped block, and a first through hole is provided in the lower half; a rotating lower die is provided in the U-shaped block; a number of second through holes are provided in the rotating lower die; an adjusting knob is provided on one of the fixed pieces. The accurately positioned punching pliers of the present invention has a simple structure, is convenient and labor-saving to use, can quickly change the needle, and is also designed with a positioning device, so that the punching needle can punch downward on the lower die at a vertical angle. The design of the second through holes in the rotating lower die and the first through hole in the lower half of the U-shaped block enables the waste material cut by punching to be directly discharged, thereby reducing the occurrence of defective phenomena such as incomplete punching and extrusion deformation around the hole.

The invention relates to a piston and cylinder assembly (12) of a downhole tool (10), and in particular to a piston and cylinder assembly of a rotary steerable tool. The piston (20) has an outer wall (80) which is in direct sliding contact with a wall of the cylinder (12) whereby to provide a solid sealing interface without elastomer seals. The cylinder has a retainer (22) for the piston, the retainer having a plurality of retaining parts, the piston having a plurality of retained parts (72), the retaining parts and the retained parts cooperating to retain the piston in the cylinder. The retaining parts are separated around the cylinder and are separate from the outer wall. The retained parts are separated around the piston and are also separate from the outer wall. The retaining parts are separated by openings which can accommodate the retained parts. The invention avoids the requirement for cross pins or the like to retain the piston in the cylinder and thereby avoids any holes or other discontinuities in the sealing surfaces. The invention thereby separates the function of retaining the piston from sealing the piston to cylinder interface. The invention also relates to a downhole tool with a piston and cylinder assembly.

The utility model discloses a corrugated board directional cutting device which comprises a bearing assembly used for fixing a paperboard, a positioning assembly is arranged in the middle of the bearing assembly, a tool changing assembly is arranged at the top of the positioning assembly, and a stabilizing assembly used for fixing a tool to improve cutting stability is arranged on one side of the tool changing assembly. And the tool changing assembly comprises a first connecting frame, a rotating cylinder is rotationally arranged on one side of the first connecting frame, and a third motor is installed on one side of the rotating cylinder. According to the utility model, the rotating cylinder is driven by the motor to rotate, so that the cutter can be quickly replaced in the machining process, and the time required by machining is shortened; the telescopic rod drives the cross-shaped bolt to be inserted into the positioning groove and the inserting groove, the rotating cylinder is stabilized, the structural stability is improved, and the situation that the machining precision is affected by tool deflection in the cutting process is prevented; the screw at the bottom of the objective table drives the clamping plates to fold to clamp the paperboard, obstacles on the surface of the objective table are few, and chippings can be cleaned conveniently after machining is completed while the position centering of the paperboard is kept.

The application relates to the technical field of motor production and processing equipment, and particularly discloses a device for pressing a cross pin on a motor output shaft, which comprises a device body and further comprises a pressing assembly arranged on a workbench, the pressing assembly being used for pressing the cross pin into a shaft hole of the motor output shaft; the motor output shaft and the cross pin can be centrally positioned by the pressing assembly, and the cross pin can be pressed into the shaft hole of the motor output shaft; the assembly can detect the assembly interference between the cross pin and the shaft hole of the output shaft, and the pressing force of the pressing assembly on the cross pin can be adaptively adjusted according to the detected interference; meanwhile, the material (steel or aluminum) of the cross pin can be detected by the assembly while the cross pin is positioned by the pressing assembly, and the pressing force of the pressing assembly can be synchronously adjusted according to the material of the cross pin, so as to adapt to the characteristics of the steel cross pin and the aluminum cross pin, that is, the steel cross pin is resistant to compression, and the aluminum cross pin is relatively easy to deform.