CN210451848U - Horizontal automatic centering device and system for clamping center rail - Google Patents
Horizontal automatic centering device and system for clamping center rail Download PDFInfo
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- CN210451848U CN210451848U CN201920855166.XU CN201920855166U CN210451848U CN 210451848 U CN210451848 U CN 210451848U CN 201920855166 U CN201920855166 U CN 201920855166U CN 210451848 U CN210451848 U CN 210451848U
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Abstract
The utility model relates to a track hoist and mount technique aims at providing a horizontal self-centering device and system for heart rail clamping. The device comprises a box type pedestal and a self-centering mechanism; round pin shafts are arranged on the two side wall plates of the front panel; the latter comprises two L-shaped levers which are arranged on a round pin shaft through shaft holes of the two L-shaped levers; the end part of the vertical part of the clamping device is exposed and the movable joint and the pressing block which are oppositely arranged are used as clamping parts; the horizontal part is arranged in the box type pedestal, a conical surface top block sleeved with a vertical centering shaft is arranged between the end parts of the horizontal part, a pull top plate capable of moving horizontally and resetting automatically is arranged below the conical surface top block, and the inclined upper surface of the pull top block is in sliding fit with the inclined bottom surface of the conical surface top block. When the centering rail is used, a centering shaft can be pushed to drive the lever to rotate by adjusting the position of the pull top plate, so that the centering rail is automatically centered and clamped. The accurate positioning of the point rail processed in each batch can be ensured, and fine adjustment can be carried out according to model difference.
Description
Technical Field
The utility model relates to a track processing technology, in particular to horizontal automatic centering device and system for heart rail clamping.
Background
The point rail is a key part on a railway frog, and the structure of the point rail is shown in figure 1. In the machining process of the point rail, the center line of the tip needs to be aligned when the tail of the point rail is finely milled, the condition that the center line is consistent with the moving direction of a machine tool workbench is guaranteed, the condition that the center line of the tail after fine machining is on the same straight line with the center line of the tip is guaranteed, and a foundation is laid for smooth assembly of a follow-up frog. Because the point end needs to be numerically controlled and finely milled again after the point rail is installed on the fork and the heel rail, the included angle of the two side surfaces of the point end of the point rail is consistent with the included angle of the outer side of the rail head of the fork and the heel rail and is in a straight line.
As shown in FIG. 2, in an early point rail clamping tool, when a center line of a point rail is found, each point rail needs to be aligned by a dial indicator. Firstly, finding a central point at the front part to horizontally position the front end, firmly sucking a gauge stand by using a main shaft of a numerical control milling machine, and continuously manually rotating, moving left and right to determine data of the center of a first point; then the working table moves to the middle position of the center rail, the center of a second point is searched by the same method to horizontally position the middle, the middle position is adjusted to the coordinate position which is the same as the first point through an adjusting screw, and repeated correction is needed, so that the central line formed by the two central points is parallel to the moving rail direction of the working table. Then the screw is screwed down in the horizontal direction of the tail part, and the tongue pressing plate is pressed tightly in the vertical direction. The whole center line adjusting process needs about 20 minutes, and the efficiency is low.
At present, a self-centering flat tongs tool (as shown in figure 3) is also used, the tool is a common centering clamping tool, the tool is similar to a machine flat tongs, and two sliding seats at the upper part are driven by left and right screw nuts with equal screw pitches, can synchronously move at a constant speed, clamp oppositely and loosen reversely; however, the use process is not satisfactory, the operation is troublesome because the types of the core rails are different and the included angles of the two side surfaces are different, the jaw plates with different angles need to be frequently replaced, the included angles of the two side surfaces of the core rails with the same type are different due to the error of the machining precision of the core rail, the surface contact cannot be formed during clamping, and the positioning effect is poor; in addition, the guide rail is internally provided with a hollow part for moving the sliding seat, the lower part of the sliding seat is provided with a nut, and the screw rotates the nut to drive the sliding seat to move back and forth, so that a dustproof facility cannot be installed on the guide rail, and impurities such as scrap iron enter the guide rail to directly cause the abrasion of elements such as the guide rail, the nut, the screw, the central positioning and the like to be accelerated, so that the accuracy is lost quickly and the accurate positioning.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, overcome not enough among the prior art, provide a horizontal self-centering device and system for heart rail clamping.
In order to solve the technical problem, the utility model discloses a solution be:
the horizontal automatic centering device for clamping the center rail comprises a clamping part for clamping the center rail, and the device comprises a box type pedestal and a self-centering mechanism; wherein,
the box type pedestal comprises a box type main body structure consisting of a top base plate, a bottom plate, two side wall plates and two connecting beams, and is fixed through a positioning pin; two lever through holes and a centering shaft mounting hole which are positioned on the same connecting line are arranged on the base plate, and the lever through holes are symmetrically arranged on two sides of the centering shaft mounting hole; two horizontal round pin shafts are arranged on the two side wall plates in a penetrating way, are positioned below the two lever through holes and are mutually vertical to the connecting line of the two lever through holes;
the self-centering mechanism comprises two L-shaped levers, each lever is arranged on the round pin shaft through a shaft hole of the lever, the end part of the vertical part of each lever is exposed out of the base plate from the lever through hole, and the transverse part of each lever is positioned in the box-type pedestal; two Y-shaped movable joints are respectively clamped at the end parts of the vertical parts of the levers through pin shafts, the other ends of the movable joints are provided with pressing blocks, and the two pressing blocks are oppositely arranged to be used as clamping parts for clamping the center rails; the end parts of the transverse parts of the two levers are oppositely arranged, a conical surface top block with a central opening is arranged between the two levers, and a vertical centering shaft is movably sleeved in the central opening of the conical surface top block;
steps are arranged at two ends of the centering shaft and are respectively used for being arranged in centering shaft mounting holes arranged on the base plate and the bottom plate; a top pulling plate which can transversely move and automatically reset is arranged below the conical surface top block, the inclined upper surface of the top pulling plate and the inclined bottom surface of the conical surface top block are installed in a sliding fit mode, and a space for containing the relative displacement of the centering shaft is formed in the top pulling plate.
The utility model discloses in, the dustproof cover plate is established to lever vertical part cover, and the dustproof cover plate is located the backing plate top and is used for sheltering from the lever perforation.
The utility model discloses in, set up heart rail locating piece at the top edge of side wall board, open the waist shape trompil that has the horizontal direction on the heart rail locating piece to with the bolt fastening on the side wall board.
In the utility model, a central adjustable positioning block is arranged on the side surface of the bottom plate under the side wall plate, and a waist-shaped opening in the horizontal direction is arranged on the central adjustable positioning block and is fixed on the bottom plate by a bolt; the bottom of the central adjustable positioning block is provided with a projection extending out of the bottom plate and used for being inserted into the groove of the workbench.
The utility model discloses in, the tip of the horizontal part of lever is equipped with touches the slider and can be around its installation axle rotation, touches the conical surface of slider surface and conical surface kicking block and contacts each other.
In the utility model, the top plate consists of two side plates with inclined upper surfaces, and a space for accommodating the relative displacement of the centering shaft is kept between the two side edges; one end of the pull top plate is connected with the support frame through a slipknot bolt, and the other end of the pull top plate is connected with the tension spring fixing rod through a lifting bolt and a reset tension spring.
In the utility model, the conical surface top block and the centering shaft are installed in a sliding fit manner, and the upper part of the central hole of the conical surface top block is provided with a rubber sealing ring; and the middle part of the side surface of the conical surface top block is provided with an engine oil nozzle, and the engine oil nozzle is connected to the central opening through a lubricating channel.
The utility model discloses in, be equipped with the vertical elastic component of raising on the movable joint, its inside spring that is equipped with, mounting height adjusting screw is established at the top.
The utility model discloses in, install the reset device that loosens that comprises ejector pin, compression spring and plug screw on the tie-beam.
The utility model further provides a horizontal automatic centering system comprising the horizontal automatic centering device, and the system also comprises a tip positioning device, a vertical buckling and pressing device and a horizontal supporting device; wherein, there are two sets of horizontal self-centering device and vertical withhold the device at least respectively.
Compared with the prior art, the utility model has the technical effects that:
1. will the utility model discloses a horizontal automatic centering device with current most advanced positioner, buckle perpendicularly and press device and horizontal roof device composite mounting back on the workstation, only need carry out heart rail central line location before the primary use. When the centering rail is used, a centering shaft can be pushed to drive the lever to rotate by adjusting the position of the pull top plate, so that the centering rail is automatically centered and clamped. Even if the point rail products of different specifications are reloaded, the lever can also automatically adjust the clamping posture of the point rail. The operator only needs to adjust the longitudinal position to find the best position of the vertical buckling and pressing device and fix the vertical buckling and pressing device. The center rail center line does not need to be repositioned every operation as the existing clamping equipment.
2. The point rail positioning block of the horizontal automatic centering device can ensure that the point rail processed in each batch is accurately positioned and can be finely adjusted according to model difference.
3. The center adjustable positioning block of the horizontal automatic centering device can ensure the installation precision of the tool under the condition of repeated disassembly and assembly of the device, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a spindle rail structure (top is a front view, and bottom is a partially-sectioned top view);
FIG. 2 is a schematic structural view of an early-stage core rail clamping tool; in the figure, A-A is a tool layout diagram for adjusting a central point, and B-B is a vertical buckling tool structure diagram.
FIG. 3 is a schematic structural view of a self-centering flat-nose pliers of the prior art;
fig. 4 is a schematic view (top view, bottom view) of the middle level automatic centering system in use according to the present invention;
fig. 5 is a schematic structural view of the horizontal self-centering device of the present invention;
FIG. 6 is a schematic structural view of a box-type pedestal;
FIG. 7 is a schematic view of a square ruler for alignment;
FIG. 8 is a schematic structural view of a self-centering mechanism;
FIG. 9 is a schematic structural view of a movable joint;
FIG. 10 is a schematic structural view of a compact;
fig. 11 is a schematic structural view of the touch slider.
Reference numerals in the drawings: 001 tip positioning device; a 002 horizontal self-centering device; 003 vertical crimping means; 004 a heart rail; 005 horizontal jacking devices; 1, a bottom plate; 2, round pin shafts; 3, reinforcing spacer bushes; 4, a side wall plate; 5, a center rail positioning block; 6, a central adjustable positioning block; 7, a base plate; 8 connecting the beams; 9, a dustproof cover plate; 10 levers; 11, a pin shaft; 12, a movable joint; 13, pressing blocks; 14 releasing the reset device; 15 raising the elastic member; 16 tension spring fixing rods; 17 a reset tension spring; 18 a lifting eye screw; 19 a conical surface top block; 20 wear-resistant backing plates; 21, centering a shaft; 22 pulling the top plate; 23 swing bolts; 24, supporting frames; 25 machine oil nozzles; 26 box type pedestal; 27 a self-centering mechanism; 28 arc grooves; 29 raising the elastic member mounting hole; 30 pin shaft mounting holes.
Detailed Description
The utility model discloses a horizontal automatic centering system for a center rail processing clamping tool, which comprises a tip positioning device 001, a horizontal automatic centering device 002, a vertical buckling device 003 and a horizontal supporting device 005; wherein, there are two sets of horizontal self-centering device 002 and vertical withholding device 003 respectively at least.
The horizontal automatic centering device is the core innovation of the utility model, and comprises a box-type pedestal 26 and a self-centering mechanism 27; wherein,
the box-type pedestal 26 comprises a box-type main body structure consisting of a top base plate 7, a bottom plate 1, two side wall plates 4 and two connecting beams 8, and is fixed through a positioning pin; two lever through holes and a centering shaft mounting hole which are positioned on the same connecting line are arranged on the base plate 7, and the lever through holes are symmetrically arranged on two sides of the centering shaft mounting hole; two horizontal round pin shafts 2 are arranged on the two side wall plates 4 in a penetrating way, and the round pin shafts 2 are positioned below the two lever through holes and are mutually vertical to the connecting line of the two lever through holes; and a point rail positioning block 5 is arranged at the upper edge of the side wall plate 4, and a waist-shaped opening in the horizontal direction is formed in the point rail positioning block 5 and is fixed on the side wall plate 4 through a bolt. A central adjustable positioning block 6 is arranged on the side surface of the bottom plate 1 below the side wall plate 4, a waist-shaped opening in the horizontal direction is formed in the central adjustable positioning block 6, and the central adjustable positioning block is fixed on the bottom plate 1 through a bolt; the bottom of the central adjustable positioning block 6 has a projection out of the bottom plate for insertion into a slot in the table.
The self-centering mechanism 27 comprises two L-shaped levers 10, each lever 10 is mounted on the round pin shaft 2 through a shaft hole thereof, so that the end part of the vertical part of the lever is exposed out of the backing plate 7 from the lever through hole, and the transverse part of the lever 10 is positioned in the box-type pedestal 26; two Y-shaped movable joints 12 are respectively clamped at the end parts of the vertical part of the lever 10 through pin shafts 11, the other ends of the movable joints 12 are provided with pressing blocks 13, and the two pressing blocks 13 are oppositely arranged to be used as clamping parts for clamping the heart rail 004; the ends of the transverse parts of the two levers 10 are oppositely arranged, a conical surface top block 19 with a central opening is arranged between the two levers, and a vertical centering shaft 21 is movably sleeved in the central opening of the conical surface top block 19; steps are arranged at two ends of the centering shaft 21 and are respectively used for being arranged in centering shaft mounting holes arranged on the base plate 7 and the bottom plate 1; a pulling top plate 22 which can transversely move and reset automatically is arranged below the conical top block 19, the inclined upper surface of the pulling top plate and the inclined bottom surface of the conical top block 19 are installed in a sliding fit mode, and a space for accommodating the relative displacement of the centering shaft 21 is formed in the pulling top plate 22.
As a further priority scheme, the utility model discloses can also further refine product structure or design. For example, a connecting beam 8 is provided between the two side wall panels 4 for reinforcing the connection. The vertical part of the lever 10 is sleeved with a dustproof cover plate 9, and the dustproof cover plate 9 is positioned above the base plate 7 and used for shielding the lever perforation to prevent dust from falling into the lever perforation. The end of the transverse part of the lever 10 is provided with a contact slider 31 and can rotate around the mounting shaft thereof, and the surface of the contact slider 31 and the tapered surface of the tapered top block 19 are in contact with each other. The roof plate 22 is composed of two side plates with an inclined upper surface, and a space for accommodating the relative displacement of the centering shaft 21 is kept between the two side plates; one end of the top plate 22 is connected with a support frame 24 through a slipknot bolt 23, and the other end is connected with a tension spring fixing rod 16 through a lifting bolt 18 and a return tension spring 17. The conical surface top block 19 and the centering shaft 21 are installed in a sliding fit manner, and a rubber sealing ring is arranged at the upper part of a central opening of the conical surface top block 19; and the middle part of the side surface of the conical surface top block is provided with an engine oil nozzle 25, and the engine oil nozzle 25 is connected to the central opening through a lubricating channel. The movable joint 12 is provided with a vertical lifting elastic part 15, a spring is arranged in the vertical lifting elastic part, and the top of the vertical lifting elastic part is provided with a mounting height adjusting screw. The connecting beam 8 is provided with a loosening reset device 14 consisting of a mandril, a compression spring and a screw plug.
The components and operation of the apparatus are described in detail below with reference to the accompanying drawings.
The side surface of the tip of the point rail 004 is an inclined surface, and the inclination is larger; the side of the tail part is also an inclined surface, but the inclination is smaller. The product has many models, different lengths and different included angles of the side faces of the tip ends, and the center line is not only troublesome but also time-consuming to adjust during clamping. In order to change the situation, the utility model discloses redesign upgrading has been carried out to the clamping system.
The tip positioning device 001 plays a role in determining the relative position of the center rail, so that the cutting processing of the numerical control milling machine is facilitated, and the working efficiency is improved. The horizontal automatic centering device 002 is a core component of the clamping system, the pressing blocks 13 on two sides are positioned through the centering shaft 21, and the pressing rail 004 is synchronously folded under the action of the lever 10, so that the horizontal automatic centering is realized, the fixing effect is also realized in the horizontal direction, and the cutting force in the horizontal direction can be borne; the clamping piece that compact heap 13 and movable joint 12 are constituteed has universal regulatory function, can adapt to different model heart rail centre gripping. The vertical buckling device 003 plays a role of vertically pressing the core rail downwards, so that the core rail is firmly fixed on the workbench. The movement and inclination of the center rail 004 can be avoided in the machining process, and smooth machining is guaranteed. The horizontal supporting device 005 has the effects that after the central line of the tip is adjusted, screws on two sides are screwed on the tail part of the center rail in a natural state, the horizontal supporting and supporting are tight, transverse supporting force is provided for tail end machining, and meanwhile, the horizontal supporting and supporting device is matched with and mutually supports the vertical buckling and pressing device 03 and the horizontal automatic centering system 02 to jointly bear cutting force of machining.
Fig. 5 shows a core horizontal self-centering device 002, which is mainly composed of a box-type pedestal 26 and a self-centering assembly 27. The method has the characteristics of simple and convenient manufacture, high automatic centering precision and easy operation.
In fig. 6, the box body of the box-type pedestal 26 is a component for mounting and fixing the self-centering mechanism and integrally bearing the cutting force, and has the characteristics of simple structure, easy manufacture, good rigidity, high precision and long service life by adopting an assembled design.
The bottom plate 1 is the foundation of the tool and is opened and closed, namely, the bottom plate is connected with upper parts and is positioned and fixed with the workbench. The middle part of the round pin shaft 2 is sleeved in the lever part to play roles of connection and centering and bear tension when in clamping. The end part of the round pin shaft 2 is sleeved with the reinforcing spacer 3, one end of the reinforcing spacer is tightly assembled into the other end of the side wall plate 4 to play a role in axial positioning, the lever 10 is restrained at the middle part, the load of the round pin shaft 2 can be improved, and the lever 10 is prevented from moving axially. The side wall plate 4 is connected with the bottom plate 1 and the backing plate 7 in an assembling mode and is fixed by a positioning pin, and the main body supporting load effect is achieved. The tip and the tie-beam 8 of side wall board 4 are connected fixedly, and the tie-beam 8 cooperates, interact, supports each other from top to bottom with bottom plate 1, forms firm whole, has consolidated side wall board 4's upright stability. The high-strength backing plate 07 is a bearing table surface, can improve the strength of the whole box body and is used for placing the center rail 004; the backing plate 07 is made of high-strength alloy steel, and is high in strength and durable. The middle position of the point rail positioning block 5 arranged on the box body plays a role in longitudinally and accurately positioning the point rail 004, the position can be adjusted according to the transverse movement of the middle size of the point rail 004, effective position control is carried out, the mounting position of each point rail is guaranteed to be unchanged, and the repeated program processing of a numerical control machine tool is facilitated. The center adjustable positioning block 6 is an important part for assembling, disassembling and repeating center positioning of the tool, accumulated errors of all parts after the horizontal automatic centering system is assembled can be eliminated by adjusting and positioning, two waist-shaped long holes are formed in the upper portion of the center adjustable positioning block 6, linear positioning is formed on two side faces of the bottom plate by fastening screws, the lower portion of the center adjustable positioning block is inserted into a groove of the workbench, and the center position can be properly adjusted when the center adjustable positioning block is installed and debugged for the first time. The operation method is as follows: the square ruler for detection is installed on the horizontal automatic centering device 002 (see fig. 7), the square ruler is slightly clamped, a measuring head of the dial indicator touches the plane of the square ruler, the workbench is operated back and forth, whether the plane is consistent with the operation direction of the workbench or not is detected through the dial indicator installed on the machine tool, and the square ruler is clamped through the repeatedly adjusted box body. In operation the dial indicator reading is substantially unchanged indicating that the centre line has been adjusted. And screwing down the screw on the central adjustable positioning block. And finishing the center line positioning.
In fig. 8, the self-centering mechanism 27 is mainly composed of a dustproof cover plate 9, a lever 10, a pin shaft 11, a movable joint 12, a pressing block 13, a loosening reset device 14, a lifting elastic piece 15, a tension spring fixing rod 16, a reset tension spring 17, a lifting ring screw 18, a conical surface top block 19, a wear-resistant base plate 20, a centering shaft 21, a top pulling plate 22, an eyelet bolt 23, a support frame 24, an engine oil nozzle 25 and the like.
The dustproof cover plate 9 is sleeved on the lever 10 and can move along with the lever 10, and the dustproof cover plate is always covered on the upper part of the box body to prevent scrap iron and sundries from falling into the box, so that the cleanness of a mechanical mechanism in the box is ensured, parts are prevented from being abraded, and the service life of parts is prolonged. The shape of the lever 10 is L-shaped, the upper end of the vertical part is provided with a movable joint 12 (see figure 9), a pin shaft 11 is inserted into pin shaft mounting holes of the lever 10 and the movable joint 12, the movable joint 12 is Y-shaped, the middle part is provided with a lifting elastic part 15, the interior of the movable joint is provided with a spring, and the top is provided with a mounting height adjusting screw. The vertical surface of the pressing block 13 can be basically controlled through the adjusting screw, the lifting elastic piece 15 has a flexible function, can be self-adjusted along with the vertical change of the compression of the movable joint 12, does not affect the contact surface of the pressing block 13, ensures that the pressing block 13 does not lower when being loosened, is convenient for assembling and disassembling the point rail, and the pressing block 13 (see figure 10) is installed in the arc groove at the tail end of the movable joint 12, can freely move and has a universal adjusting function. The round pin shaft 2 penetrates through a shaft hole in the middle of the lever 10 to realize installation, and the lever 10 can rotate to achieve the purpose of clamping the center rail 004; the end of the transverse part of the lever 10 is provided with a contact sliding block 31 (see fig. 11), when the conical surface top block 19 moves up along the centering shaft 21, the contact sliding block 31 pushes the lever 10 to rotate under the pressure of the conical surface, at the moment, the lower part of the lever 10 is outwards expanded, and the upper part of the lever is folded, the contact sliding block 31 keeps a contact sliding surface unchanged through self rotation, and the external tension is effectively transmitted; the centering shaft 21 is a movement central point of a related clamping part, cylindrical steps at two ends of the centering shaft 21 are respectively arranged in the centering shaft mounting holes of the bottom plate 1 and the backing plate 07, and the middle part of the centering shaft is movably sleeved in the central hole of the conical surface top block 19; the parts of the self-centering mechanism are symmetrically distributed, the two sides synchronously move, and the two sides are stressed and offset, so that the external force born by the centering shaft 21 is small. Can be ignored, completely meets the technical requirements of clamping, and has safe and reliable performance.
A loosening reset device 14 composed of an ejector rod, a compression spring and a screw plug is arranged on the connecting beam 8, and can be contracted when stressed and rebound when loosened, so that the pressing block 13 is ensured to be smoothly opened. Two ends of a tension spring fixing rod 16 are fixedly arranged on the box body, the middle part of the tension spring fixing rod is sleeved in one end ring of a reset tension spring 17, the other end of the tension spring hooks a lifting ring screw 18, the lifting ring screw is arranged on a top pulling plate 22, and all the parts are matched to play a reset role. When the nut on the swing bolt is gradually screwed, the pull top plate 22 transversely and horizontally moves, the upper inclined surface of the pull top plate 22 is attached to the bottom inclined surface of the conical surface top block 19, and a small lead angle amplifies energy to generate strong jacking force so as to center and compress and transmit kinetic energy for the center rail; the lower part of the pull top plate 22 is provided with a wear-resistant base plate 20, and the inclined surface of the pull top plate 22 acts on the conical top block 19 under the counterforce of the wear-resistant base plate to gradually lift the conical top block; in the upward movement, the force of the inclined planes on the two sides of the conical surface top block 19 acts on the lever 10 through the contact sliding block 31 to force the lever 10 to rotate, the two pressing blocks 13 are synchronously folded, the core rail 004 is moved to the center and pressed tightly, and the movable joint bolt 23 and the nut thereof are self-locked in a pressing state. When the nut on the swing bolt 23 is loosened, the pull-down top plate 22 reversely and horizontally moves to return to the original point under the action of the reset tension spring 17, the conical top block 19 falls, the lever 10 rotates, the pressing block 13 opens, and the loosening action is finished. In order to ensure the flexibility of the mechanical mechanism, the upper part of the conical surface top block 19 is provided with a rubber sealing ring to prevent dust from entering a friction pair to cause abnormal abrasion of a machine part, the middle part of the conical surface top block is provided with an oil nozzle 25 and a lubricating channel, the lubricating requirements of the binding surfaces of the conical surface top block 19, the centering shaft 21, the top pulling plate 22 and the like are met, the machine oil is injected frequently to prevent corrosion, the friction force is reduced, the compression capacity is improved, the loosening return is facilitated, and the service life is prolonged.
The use effect is as follows: if the traditional clamping tool is used for aligning the center line of the center rail, each time needs 20 minutes. The utility model provides a horizontal automatic centering device 002 can save the timing time, can save 120 minutes in every team work time (8 hours), can produce two heart rails more. The clamping time can be saved by 6 hours every day by processing the point rails according to three shifts of a factory, and 6 more point rails can be produced. Considering that the large numerical control milling machine has higher operating cost, the working time and the cost are saved due to the omission of the working procedure of adjusting the central line, and considerable economic benefit can be generated every year. Meanwhile, the production pressure of operators is reduced, the utilization rate of equipment is improved, and electric energy is saved.
Claims (10)
1. A horizontal self-centering device for clamping a center rail comprises a clamping part for clamping the center rail, and is characterized by comprising a box-type pedestal and a self-centering mechanism; wherein,
the box type pedestal comprises a box type main body structure consisting of a top base plate, a bottom plate, two side wall plates and two connecting beams, and is fixed through a positioning pin; two lever through holes and a centering shaft mounting hole which are positioned on the same connecting line are arranged on the base plate, and the lever through holes are symmetrically arranged on two sides of the centering shaft mounting hole; two horizontal round pin shafts are arranged on the two side wall plates in a penetrating way, are positioned below the two lever through holes and are mutually vertical to the connecting line of the two lever through holes;
the self-centering mechanism comprises two L-shaped levers, each lever is arranged on the round pin shaft through a shaft hole of the lever, the end part of the vertical part of each lever is exposed out of the base plate from the lever through hole, and the transverse part of each lever is positioned in the box-type pedestal; two Y-shaped movable joints are respectively clamped at the end parts of the vertical parts of the levers through pin shafts, the other ends of the movable joints are provided with pressing blocks, and the two pressing blocks are oppositely arranged to be used as clamping parts for clamping the center rails; the end parts of the transverse parts of the two levers are oppositely arranged, a conical surface top block with a central opening is arranged between the two levers, and a vertical centering shaft is movably sleeved in the central opening of the conical surface top block; steps are arranged at two ends of the centering shaft and are respectively used for being arranged in centering shaft mounting holes arranged on the base plate and the bottom plate; a top pulling plate which can transversely move and automatically reset is arranged below the conical surface top block, the inclined upper surface of the top pulling plate and the inclined bottom surface of the conical surface top block are installed in a sliding fit mode, and a space for containing the relative displacement of the centering shaft is formed in the top pulling plate.
2. The horizontal self-centering device of claim 1, wherein the lever vertical portion is fitted with a dust cover plate positioned above the backing plate for covering the lever through-hole.
3. The horizontal self-centering device of claim 1, wherein a center rail positioning block is provided at the upper edge of the side wall plate, and a horizontal waist-shaped opening is formed in the center rail positioning block and is fixed to the side wall plate by a bolt.
4. The horizontal self-centering device according to claim 1, wherein a central adjustable positioning block is provided on the side of the bottom plate under the side wall plate, and a horizontal waist-shaped opening is formed on the central adjustable positioning block and is fixed on the bottom plate by a bolt; the bottom of the central adjustable positioning block is provided with a projection extending out of the bottom plate and used for being inserted into the groove of the workbench.
5. The horizontal self-centering device according to claim 1, wherein the end of the lateral portion of the lever is provided with a contact block and is capable of rotating about its mounting axis, and a surface of the contact block and a tapered surface of the tapered top block are in contact with each other.
6. The horizontal self-centering device according to claim 1, wherein the ceiling plate is composed of two side plates having obliquely upward surfaces, and a space for accommodating the relative displacement of the centering shaft is maintained between the two side plates; one end of the pull top plate is connected with the support frame through a slipknot bolt, and the other end of the pull top plate is connected with the tension spring fixing rod through a lifting bolt and a reset tension spring.
7. The horizontal self-centering device according to claim 1, wherein the conical top block and the centering shaft are installed in a sliding fit manner, and a rubber seal ring is arranged at the upper part of the central opening of the conical top block; and the middle part of the side surface of the conical surface top block is provided with an engine oil nozzle, and the engine oil nozzle is connected to the central opening through a lubricating channel.
8. The horizontal self-centering device according to claim 1, wherein the movable joint is provided with a vertical lifting elastic member, a spring is arranged in the vertical lifting elastic member, and a mounting height adjusting screw is arranged at the top of the vertical lifting elastic member.
9. The horizontal self-centering device of claim 1, wherein a release return device consisting of a push rod, a compression spring and a screw plug is mounted on the connection beam.
10. A horizontal self-centering system comprising the horizontal self-centering device of any one of claims 1 to 9, wherein the system further comprises a tip positioning device, a vertical crimping device and a horizontal propping device; wherein, there are two sets of horizontal self-centering device and vertical withhold the device at least respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920855166.XU CN210451848U (en) | 2019-06-09 | 2019-06-09 | Horizontal automatic centering device and system for clamping center rail |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920855166.XU CN210451848U (en) | 2019-06-09 | 2019-06-09 | Horizontal automatic centering device and system for clamping center rail |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293420A (en) * | 2019-06-09 | 2019-10-01 | 浙江贝尔轨道装备有限公司 | A kind of horizontal self-centering apparatus and system for heart rail clamping |
| CN114838679A (en) * | 2022-04-26 | 2022-08-02 | 鞍钢集团矿业有限公司 | Underground mine blast hole measuring device and using method |
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2019
- 2019-06-09 CN CN201920855166.XU patent/CN210451848U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293420A (en) * | 2019-06-09 | 2019-10-01 | 浙江贝尔轨道装备有限公司 | A kind of horizontal self-centering apparatus and system for heart rail clamping |
| CN110293420B (en) * | 2019-06-09 | 2024-08-06 | 浙江贝尔轨道装备有限公司 | Horizontal automatic centering device and system for clamping core rail |
| CN114838679A (en) * | 2022-04-26 | 2022-08-02 | 鞍钢集团矿业有限公司 | Underground mine blast hole measuring device and using method |
| CN114838679B (en) * | 2022-04-26 | 2024-02-09 | 鞍钢集团矿业有限公司 | Underground mine blast hole measuring device and using method |
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Address after: 324400 No. 5 Xingye Avenue, South Industrial New Town, Longyou County, Quzhou City, Zhejiang Province Patentee after: Zhejiang Bell Rail Equipment Co.,Ltd. Country or region after: China Address before: 324400 No. 5 Xingye Avenue, South Industrial New Town, Longyou County, Quzhou City, Zhejiang Province Patentee before: ZHEJIANG BELL RAILWAY EQUIPMENT Co.,Ltd. Country or region before: China |