1300 results about "Bearing surface" patented technology

The invention discloses an automatic copper pipe tooth rolling production line, and belongs to the technical field of copper pipe tooth rolling machining. The gear rolling production line comprises a plurality of gear rolling machines, a feeding line and a feeding assembly. The feeding assembly comprises a feeding conveying mechanism, a jacking distributing mechanism, a feeding buffering mechanism and a longitudinal conveying mechanism. The feeding conveying mechanism comprises a feeding frame and a plurality of feeding conveying units, the feeding temporary storage mechanism comprises a feeding temporary storage frame, and a temporary storage part of the feeding temporary storage frame and a bearing surface of a discharging guide part are obliquely arranged; the jacking and distributing mechanism comprises a jacking and distributing unit, and the jacking and distributing unit comprises a first-stage jacking frame and a second-stage jacking frame. The position layout of the tooth rolling machines is reasonable, the space of a plant workshop is fully utilized, the feeding requirements of multiple tooth rolling machines can be met by arranging the feeding assembly on one layer and one feeding line in the workshop, the production rhythm of the multiple tooth rolling machines can be met, copper pipes are stable, reliable and high in conveying efficiency in the conveying process, the falling risk is avoided, and the production efficiency is improved. And the safety of equipment and personnel is ensured.

The invention provides a rigidity-adjustable bearing platform, which can realize multi-gear adjustability of bearing rigidity, can adjust the inherent frequency of the whole load after being connected with the load, and belongs to the related technical fields of mechanical engineering, aerospace, constructional engineering and the like. According to the platform, a plurality of parallel flexible supporting paths are arranged between a mounting surface and a bearing surface, and different supporting rigidities of the platform are achieved by locking and releasing the flexible supporting paths. The principle is simple and reliable, the structural form is flexible and changeable, and the supporting rigidity is not affected by environmental factors.

The invention discloses a transverse conveying device for pipe fittings, and belongs to the technical field of pipe fitting conveying. The pipe fitting conveying device comprises a pipe fitting conveying mechanism, and the pipe fitting conveying mechanism comprises a conveying frame, a plurality of conveying rollers, a conveying roller driving mechanism, a transverse conveying mechanism arranged on one side or two sides of the conveying frame and a lifting mechanism used for jacking up pipe fittings on the conveying rollers. The transverse conveying mechanism comprises a conveying arm shaft, a plurality of transverse conveying arms and a rotation driving mechanism, a guide mechanism used for guiding the pipe fittings to the transverse conveying arms is further arranged on the conveying frame, the guide mechanism comprises a plurality of guide plates, the guide plates are arranged in the length direction of the conveying frame, and the bearing surfaces of the guide plates are obliquely arranged in a mode that the inner portions are high and the outer portions are low. The overall layout is compact, the workshop height does not need to be adjusted, the workshop construction cost is reduced, the pipe conveying process is stable, and the safety of equipment and personnel is ensured; the pipe fitting conveying process is easy to operate, and the labor cost and the possibility of misoperation are reduced.

The invention relates to the technical field of semiconductor measurement, in particular to a bearing device which comprises a chuck provided with a vacuum adsorption part, and the vacuum adsorption part is provided with a bearing surface; the vacuum adsorption part comprises a central part and an edge part surrounding the central part, and the edge part comprises at least one annular part; a first air passage and at least one second air passage are arranged in the vacuum adsorption part, the first air passage penetrates through the central part, the second air passage extends from the central part to the edge part, and the second air passage is provided with an air inlet hole located in one side of the bearing surface and an air outlet hole far away from one side of the bearing surface; an air inlet hole of the second air channel is located in the annular part, and an included angle exists between a connecting line of a starting point of the second air channel and the center of the vacuum adsorption part and a connecting line of an end point of the second air channel and the center of the vacuum adsorption part. According to the invention, the adsorption stability of warped wafers in different shapes can be improved at least.

A door hinge for a vehicle door (4), comprising a door-side leaf (11) and a body-side leaf (10), which are pivotably connected to each other about a hinge axis (Z) via a joint (G) having a hinge pin (12), wherein each of the leaves (10, 11) has a hinge block (14, 16) with a hinge eye (15, 17) for receiving the hinge pin (12) and a mounting plate section (13, 18), is characterized in that the door-side leaf (11) is provided with a clamping jaw area (18) facing the vehicle door (4) with at least one clamping jaw having a bearing surface (19, 19', 19") designed to abut the vehicle door (4) and has a through-opening (18') for receiving a clamping bolt (32) and that a pressure plate (31) opposite the clamping jaw area (18) is provided. which can be connected to the clamping bolt (32) at a connection point (35), wherein the clamping bolt (32) is designed,to clamp the pressure plate (31) against the clamping jaw area (18) in a tensioned state.

The invention relates to the technical field of hoisting equipment, and provides a lithium battery unmanned monorail hoist which comprises a suspension track and a hoist assembly, the hoist assembly comprises a car body unit, a hoisting and conveying unit and a suspension unit, the suspension unit is arranged on the suspension track, and the suspension unit comprises a power suspension unit and a load suspension unit. The vehicle body unit is connected with the power suspension unit, the hoisting conveying unit is connected with the load suspension unit, the load suspension unit comprises a suspension beam, load frames, load wheels and guide wheels, the load frames are arranged at the two ends of the suspension beam and comprise mounting ends on the two sides of a suspension rail, and the guide wheels and the load wheels are arranged at the mounting ends. The guide wheels abut against the guide side faces of the suspension rails, and the load-carrying wheels abut against the load-bearing faces of the suspension rails vertically. The problems that in the prior art, when a traveling wheel body of a suspension type rail crane faces a heavy load, due to the fact that the contact face is incomplete, the service life of the wheel body and components of the wheel body is prolonged, and the operation stability is poor are solved.

The invention discloses wafer cleaning equipment, a wafer chuck thereof and a wafer cleaning method, and belongs to the technical field of semiconductor process equipment. The wafer chuck comprises a chuck base body, an air injection assembly and a plurality of wafer lifting shafts, the air injection assembly and the wafer lifting shafts are arranged on the chuck base body, the chuck base body is provided with a bearing face used for bearing a wafer, and an air outlet of the air injection assembly is located in the central area of the bearing face and used for injecting air between the bearing face and the wafer. The multiple wafer lifting shafts are distributed on the periphery of an air outlet of the air injection assembly in the circumferential direction of the bearing face in a surrounding mode, each wafer lifting shaft can move relative to the chuck base body, each wafer lifting shaft is provided with an arc-shaped inclined table, each arc-shaped inclined table is provided with an inclined extending face extending in the circumferential direction of the corresponding wafer lifting shaft, and the inclined extending faces are used for bearing the edge of a wafer. When the wafer lifting shaft moves relative to the chuck base body, the wafer can move to different height positions along the inclined extending face. According to the invention, the height of the wafer can be accurately positioned, and the wafer cleaning efficiency is improved.

The invention relates to a system comprising at least one lightweight pallet and multiple similarly designed containers. Each container has four side walls and container base. The system includes stacking pins as separate components. The pallet features an upper deck with a bearing surface, supported by feet and / or runners, and incorporates first stacking pin receivers. Each container base is provided with at least one second stacking pin receiver. These receivers are dimensioned for insertion of a stacking pin, allowing a container to be securely fixed to the pallet. The stacking pin can be stably arranged in two positions: in the first, it engages the first receiver on the container's side while protruding over the bearing surface to engage the second receiver; in the second, it is countersunk in the first receiver, forming a clamping fit with the upper deck or its thread.

A forklift assembly is provided and generally includes a self-propelled frame having a pair of wheel assemblies, each providing a selectively driven wheel, the frame providing a carriage receiving assembly between the pair of wheel assemblies; an extension assembly having a first end and a second end, the first end of the extension assembly being pivotably connected to the frame; a control system; and a carriage assembly having a prong assembly, the carriage assembly being operably connected to the second end of the extension assembly and configured to be controllably positioned within the carriage receiving assembly. The wheel assembly having a selectively engageable drive system with a motor, a clutch assembly, a driveshaft having a first bearing surface and a second bearing surface and configured to be rotated by the motor, and a locking mechanism configured to selectively urge the driveshaft to shift in either a first direction or a second direction. The self-propelled frame having an articulating tow hitch; and at least one rear wheel assembly.

A fastened member configured to be fixed to a vehicle body-side member by a screw member includes: a base including a reference surface configured to receive a bearing surface of the screw member; an insertion hole provided in the base and configured to insert the screw member therethrough, and a protruding portion protruding from the reference surface. The protruding portion includes a tilted surface tilted so as to become higher along a rotation direction in which the screw member is tightened. When the screw member is tightened, the protruding portion and the base are sandwiched between the vehicle body-side member and the bearing surface and are plastically and elastically deformed.

The embodiment of the invention discloses a flowing solid conveying assembly, a conveying cabin and a distribution system, the flowing solid conveying assembly comprises a first enclosure part and a second enclosure part, the first enclosure part is provided with a bearing surface, and the bearing surface is provided with an output port; a plurality of mutually independent cavities are defined by the bearing surface and the second enclosure piece, and the cavities are used for containing flowing solids; the second enclosure part is movably connected with the first enclosure part; the second enclosure part is in limiting fit with the first enclosure part in a preset dismounting direction so as to move along with the first enclosure part in the dismounting direction; the second enclosing piece is movably arranged along the bearing face, and in the process that the second enclosing piece moves along the bearing face, all the cavities communicate with the output port. According to the flowing solid conveying assembly, the first enclosing piece and the second enclosing piece which define the multiple cavities for containing the flowing solids can be detached, and therefore the flowing solid conveying assembly can be more conveniently filled and cleaned.

The invention discloses a testing device for an electronic mechanical brake caliper component. The testing device comprises a base, a fixing component, a first displacement testing component, a second displacement testing component and a brake disc simulating component. The base comprises a bearing surface, and a guide rail is arranged on the bearing surface; the fixing part is movably connected with the guide rail and is used for supporting the electronic mechanical brake caliper part; the first displacement testing part is arranged on one side, located in the first direction, of the fixing part and is used for measuring the displacement of the electromechanical brake caliper part; the second displacement testing part is arranged on the other side, located in the first direction, of the fixing part and used for measuring the displacement of the electromechanical brake caliper part; the brake disc simulating part is arranged between the fixing part and the first displacement testing part so as to detect the pressure of the brake pad. Through the scheme of the application, multiple parameters such as clamping force, displacement, response time, brake pad stress distribution and the like of the electronic mechanical brake caliper component and the relationship among the multiple parameters can be tested.

The invention relates to a housing part for a clamping and / or braking device and to a clamping and / or braking device having such a housing part. The housing part comprises: a first edge of the housing part and a second edge of the housing part opposite the first edge; an annular recess arranged between the second edge and the first edge for clamping an annular spring plate between a first bearing surface of the housing part defined by the recess and a second bearing surface of the housing part defined by the recess; a clamping element having a clamping surface which is designed, when the spring plate is clamped in the recess between the first bearing surface and the second bearing surface in such a way that a first end of the spring plate is supported on the first bearing surface and a second end of the spring plate presses onto the second bearing surface, to transmit a clamping and / or braking force to an object to be clamped and / or braked; a first housing contact surface which extends between the first edge and the first bearing surface; wherein at least one groove for receiving a sealing means is arranged on the first housing contact surface.

A wing for an aircraft, comprising a main wing and a high lift assembly which includes a body, and an assembly connecting the body to the main wing, so the body is movable between a retracted position and an extended position. The assembly comprises a track extending along a longitudinal axis between first and second ends, with an intermediate portion therebetween. A roller bearing ensures that the track moves along the longitudinal axis. The roller bearing comprises bearing units, each mounted to the main wing and having a bearing surface for engaging the elongate track. The units include a first and second end units and an intermediate unit wherein, relative to the longitudinal axis, the intermediate unit is positioned between the first end unit and the second end unit. The elongate track comprises a recessed portion which, in the retracted position, aligns the intermediate unit.

The invention discloses a polishing device for batch machining of automobile bearings, and particularly relates to the technical field of automobile workpiece grinding, the polishing device comprises a polishing frame and a polishing abrasive belt, a dust collector is installed on the side, close to the polishing abrasive belt, of the polishing frame, and a stable polishing assembly is arranged between the polishing frame and the polishing abrasive belt; the stable grinding assembly is used for keeping a spiral propelling type grinding track between the workpiece and the grinding abrasive belt; the stable grinding assembly comprises a driving guide wheel disc and a driven guide wheel disc which are movably connected to the side, close to the grinding abrasive belt, of the grinding frame. Workpieces in the two clamping blocks are driven to perform pure rotary motion through rotation of the driving guide wheel disc, the inclined grinding abrasive belt represents a fixed fixed inclined plane, and then when any point on the surface of a bearing makes contact with the grinding abrasive belt, the motion trail of the grinding abrasive belt is not a simple circumferential line any more, so that the grinding effect is good. The spiral line is formed by combining the tangential motion of rotation and the axial sliding component caused by the inclination angle.

According to an aspect, there is provided a mounting assembly (20) for a hair cutting appliance (10), the mounting assembly comprising: a head (22) configured to receive a cutting unit and comprising: a body (24) extending along an elongate axis (50): a driving bridge (26) configured to couple to the cutting unit and to reciprocally move relative to the body along the elongate axis to reciprocally move the cutting unit relative to the body; a primary head bearing surface (44); and a separate secondary head bearing surface (52); a counterpart (40) pivotably coupled to the head. the counterpart comprising: a primary counterpart bearing surface (46) configured to cooperate with the primary head bearing surface to permit sliding rotation of the counterpart relative to the head about a first rotational axis (60) which is parallel to the elongate axis, and configured to contact the primary head bearing surface along a contact line to limit movement of the head towards the counterpart along a second axis (30) perpendicular to the first rotational axis; and a secondary counterpart bearing surface (54) separate from the primary counterpart bearing surface and configured to cooperate with the secondary head bearing surface to permit sliding rotation of the counterpart relative to the head about the first rotational axis, and configured to bear against the secondary head bearing surface to limit movement of the head relative to the counterpart along a third axis (70) which is perpendicular to the second axis and the first rotational axis; and a driving unit (34) comprising a driving axle (36) and a socket (38), the driving axle comprising an eccentric pin (42) cooperating with the driving bridge to impart reciprocating motion to the driving bridge, and the socket being configured to cooperate with a motor (14).

The utility model relates to the technical field of milling machine fixtures, in particular to a milling machine fixture which comprises a base and a sliding block arranged on the base in a sliding mode, a fixed clamping plate and a movable clamping plate are further arranged on the base, the fixed clamping plate is fixedly installed on one side of the base, and the movable clamping plate is fixedly installed on the sliding block. A first air cylinder is fixedly installed on the base, and a piston rod of the first air cylinder is connected with the sliding block. The base is provided with a bearing face, a penetrating opening is formed in the bearing face, and a bearing piece is arranged at the penetrating opening, the bearing piece is used for assisting a workpiece in entering and exiting from a clamping area, contact between a worker and a clamp can be effectively reduced, and the worker is prevented from being hurt by clamping force of the clamp due to the fact that the workpiece is manually placed in the operation process; through the assistance of the bearing plate, the workpiece can enter a clamping area safely and stably and retreat smoothly after machining is completed, and safety and working efficiency are effectively improved.

The invention relates to a device for applying coatings to the surfaces of highly curved parts. According to the invention, the device comprises a flexible base plate (1) having teeth (3) mounted on its side, a channel (4) arranged parallel to the toothed side, and a sealing lip (7). The device can primarily be used for applying a coating to or on the edges of a part, particularly for applying a liquid or paste-like coating substance. The invention also relates to methods for applying protective coatings against erosion to or on the edges of parts, in particular methods for applying protective coatings to the edges of rotor blades, vanes, or bearing surfaces.

An annular lower support for a rotating suspension stop 12 of a suspension leg 10 forming an annular bearing surface 32, and an annular skirt 34 comprising a lower edge 36 having axial serrations forming an annular alternation of axially projecting teeth 38 and gaps 40 separating the teeth 38 in pairs. (Fig. 1)

The invention relates to a stop pin (10) for limiting the axial travel of a mobile (21) of a timepiece movement (20), said stop pin (10) comprising a head (11) arranged at one end of a stem (12) extending along a longitudinal axis of rotation, the head (11) extending radially relative to the stem (12) and comprising, on a portion of the periphery of the head (11), a radial projection (110) intended to be arranged opposite the mobile (21), and, at the junction with the stem (12), a bearing seat (111), the stop pin (10) being intended to rest, by means of the bearing seat, on a structure (22) of the timepiece movement (20), wherein said bearing seat (111) has a central thickening (112) extending around said stem (12) so as to allow the bearing surface of said bearing seat (111) to be limited on said structure (22) of the timepiece movement (20).

Rotary transmission arrangement (10) comprising: a housing (1) having a bearing surface (11) which carries at least one bearing (4); a hollow shaft (2) which is / will be rotatably coupled to the housing (1) about a first axis of rotation (A1), wherein the hollow shaft (2) has at least one externally rotating stepped shaft section (21A, 21B) and at least one internally rotating stepped shaft section (22); a rod link (3) which is / will be rotatably coupled to the housing (1) about the first axis of rotation (A1), comprising at least one contact section (31) and at least one projecting part (32), wherein the at least one contact section (31) touches at least a part of the hollow shaft (2) in a radial direction and the at least one projecting part (32) abuts the at least one internally rotating stepped shaft section (22) in an axial direction; wherein the at least one bearing (4) comprising at least one circular inner support part (41A, 41B) and at least one circular outer support part (42) supports the hollow shaft (2) and the rod link (3) rotatably against the housing (1) about the first axis of rotation (A1), wherein the at least one circular inner support part (41A, 41B) abuts at least a part of the at least one outer stepped shaft section (21A) in an axial direction and the at least one circular outer support part (42) abuts the bearing surface (11) of the housing (1) in the axial direction; and a stop member (5) which is / will be fixed to the rod member (3), wherein the stop member (5) abuts the at least one circular inner support part (41B) in the axial direction.

A load-bearing support plate, chain structure, and a conveyor belt structure incorporating them are provided. The load-bearing support plate includes a first panel, a second panel, and a transition panel for connecting the first panel with the second panel; the first panel is offset in a first direction relative to the second panel, and at least one reinforcing rib is provided on the first panel, the reinforcing rib extending upwards from the bottom of the first panel to the upper edge of the first panel and forming a bearing surface with the top surface of the first panel. By forming the first panel into a curved shape with the use of reinforcing ribs, the overall support capability is enhanced.

The full-automatic assembling and pressing riveting equipment comprises a machine table and a rotating disc, a plurality of carriers are arranged on the rotating disc, a valve deck feeding unit, a gravity valve clack feeding unit, a gravity ball feeding unit, a valve body feeding unit and a valve body-valve deck pressing riveting unit are arranged on the periphery of the rotating disc, and suspended supporting carriers are arranged in workpiece cavities of the carriers; a positioning hole is formed in the middle of the supporting carrier; the valve cover feeding unit conveys an inverted valve cover to a carrier workpiece cavity, a gravity valve rod is inserted into a positioning hole, and a chassis is placed on a supporting carrier; the gravity valve clack feeding unit is used for placing an inverted gravity valve clack in a valve cover; the gravity ball feeding unit places a gravity ball on the gravity valve clack; the inverted valve body is inversely buckled on the valve cover by the valve body feeding unit; and the valve body-valve cover pressing riveting unit presses the valve body downwards, the upper end ring edge of the valve body is attached to the pressure-bearing surface for extrusion, and the upper end ring edge is pressed and riveted on the upper surface of the outer edge of the valve cover base plate. According to the equipment, the turntable and each feeding and pressing riveting unit are integrated, and a fuel rollover valve full-process automatic assembly system is constructed.

This utility model provides an anti-impact tread cleaner. A connecting seat is hinged to a piston rod, and a buffer sleeve is installed in the hinge hole. The piston rod has a mounting hole, into which a spring rod is inserted. The spring rod has a spring seat at its front end and is installed in a mounting hole on the rear cylinder head at its rear end. A return spring is sleeved on the spring rod, with its front end abutting against the spring seat on the piston rod and its rear end abutting against a gasket installed in the piston rod mounting hole. Each tooth of the rack has a trapezoidal cross-section, with the angle of the force-bearing surface on both sides being 73° to 77°. The angle of the side of the limiting pin that mates with the force-bearing surface is the same as the angle of the force-bearing surface. An exhaust hole is provided near the connecting seat at the end of the piston rod, and a first filter screen is provided on the exhaust hole. An air inlet is provided on the rear cylinder head, and a second filter screen is installed in the air inlet. This design prevents the rack from deforming upon abnormal impact, allowing the tread cleaner to operate normally. The filter screen can be reused after replacement, and the overall buffer sleeve increases the deflection angle of the connecting seat connected to the grinding wheel.

An additive manufacturing process for all or part of a tire tread configured to smooth any raised areas (R) present on a circumferential bearing surface (5) of said tire by depositing an extruded material forming the tread, wherein a pressure regulating device (24) inside the extruder is controlled in real time, via a pressure control loop, according to a pressure measured by the pressure sensor and a constant pressure setpoint. The process is configured to smooth a plurality of raised areas (R) present on a circumferential bearing surface (5) of the tire. Figure for the abstract: Fig 8A

The application discloses a positioning method for installing a bridge anchoring system, and is based on a positioning support. The positioning support comprises a bottom support and a side support, and the side support has a base, an upper support and a lower support on the base. The bottom support is provided with a supporting surface with a first positioning assembly, and the upper and lower supports are provided with supporting rods with a second positioning assembly. The second positioning assembly is provided with a rotatable positioning groove, and the groove width of the positioning groove is inwardly tapered to have a guiding effect. During installation and positioning, the positioning support comprising a first layer of supporting rods and a second positioning assembly is installed first. The anchoring member is hoisted so that the bottom of the anchoring member falls into the first positioning assembly, and the anchoring member is continuously hoisted so that the upper part of the anchoring member is guided into the positioning groove of the second positioning assembly, and the positioning groove is self-adaptively rotated to match the installation angle of the anchoring member. Then, the above operation is repeated, and the installation and positioning of all layers of anchoring members from bottom to top are completed. The method realizes high-precision and high-efficiency positioning of the anchoring member, and effectively reduces the risk of bending damage of the anchoring member.

To provide a dynamic pressure bearing excellent in bearing rigidity at low cost.SOLUTION: A dynamic pressure generating part P is provided on each of two radial bearings A1, A2 provided at an interval in the axial direction, and a large diameter cylindrical surface 8b having a diameter larger than that of the radial bearings A1, A2 is provided between the radial bearings LA, LA. In the dynamic pressure bearing (bearing member 8) in which the dynamic pressure generating portion P is formed of a concavo-convex surface in which a plurality of dynamic pressure grooves 10 extending in the axial direction and convex hill portions 11 are alternately arranged in the circumferential direction, one radial bearing surface A1 and the large-diameter cylindrical surface 8b are connected via a tapered surface 8c inclined with respect to the axial direction, and the other radial bearing surface A2 and the large-diameter cylindrical surface 8b are connected via a tapered surface 8d having an inclination angle with respect to the axial direction smaller than that of the tapered surface 8b. The dynamic pressure grooves 10 formed in the A2 of the other radial surface are open to the 8d of the tapered surface.SELECTED DRAWING: Figure 4

The utility model discloses a shielding assembly and semiconductor processing equipment. The shielding assembly comprises a shielding baffle; the baffle arm is used for enabling the shielding baffle to move between the storage position and the shielding position; the baffle arm comprises a bearing part, the bearing part is provided with a horizontal bearing surface, a fixing pin is arranged on the bearing surface, and the fixing pin is in a prismatic table shape or a prism shape; the shielding baffle is located on the bearing face, a fixing groove matched with the fixing pin in shape is formed in the side, facing the baffle arm, of the shielding baffle, and the fixing pin is inserted into the fixing groove. At the shielding position, the projection, on the supporting surface of the base, of the shielding baffle completely covers the projection, on the supporting surface of the base, of the workpiece to be machined; and when the shielding baffle is at the storage position, the shielding baffle is not overlapped with the supporting surface of the base in the direction perpendicular to the supporting surface of the base. According to the shielding assembly and the semiconductor processing equipment, particulate matters generated by friction between the shielding baffle and the baffle arm can be effectively limited.

The application provides a weighing type water surface evaporation testing device, and relates to the technical field of water surface evaporation devices.The device comprises an evaporation barrel inserted into the ground in a guiding mode, a supporting assembly installed in the ground and supporting the evaporation barrel, a cleaning assembly installed on the ground and capable of rotating, and a water supply assembly installed on the ground and capable of rotating.The ground is provided with a circular groove with an upward opening and allowing the evaporation barrel to be inserted up and down, and the supporting assembly is installed in the circular groove and located below the evaporation barrel.In order to meet the lifting requirement of the evaporation test, the system drives the lifting assembly to move along the vertical direction by starting the first driving motor, so as to stably lift the evaporation barrel.In the lifting process of the evaporation barrel, the matched expansion and contraction assembly is synchronously expanded, the inner diameter of the support is expanded, a wider bearing surface is formed, and the stability and safety of the evaporation barrel at the high position are effectively enhanced.

The invention relates to the technical field of metal part drilling lathes, and particularly discloses an automatic box drilling device which comprises a table body arranged in a drilling area of a production line. The continuous conveying assembly is arranged on the bearing surface of the table body; the drill bit end of the drilling system is arranged on the stroke of the continuous conveying assembly; wherein the drilling system comprises a top drilling machine mechanism with a mounting frame, and the top drilling machine mechanism is mounted on the surface of the table body through the mounting frame; the side drilling machine mechanism is arranged on the face, close to the continuous conveying assembly, of the installation frame. The output end of the first swing driving assembly is rotationally mounted on the side wall of the mounting frame, the clamp assembly and the side drilling machine mechanism are arranged on the circumferential outer wall of the output end of the first swing driving assembly, and the first swing driving assembly drives the clamp assembly and the side drilling machine mechanism to swing around an output shaft of the first swing driving assembly. And multi-face synchronous drilling can be achieved, boxes can be automatically fixed, and continuous and efficient operation is achieved.