CN216359399U - Thermal shrinkage machine convenient to cooled end mill handle of a knife - Google Patents

Abstract

The utility model discloses a heat shrinking machine of an end milling cutter handle convenient to cool, wherein the top surface of a base station is fixedly connected with a handle seat and a vertical frame, the vertical frame is provided with a hot air gun which is movably connected up and down, an air outlet pipe of the hot air gun horizontally points to the handle seat, one end, back to the hot air gun, of the air outlet pipe is adjustably and fixedly connected with a handle sleeve pipe, the axis of the handle sleeve pipe is vertical to the air outlet pipe, the middle part in the handle sleeve pipe is divided into a heating pipe orifice and a cooling pipe orifice through a partition plate, the handle sleeve pipe is connected with the air outlet pipe through a connecting block arranged on the side wall, the bottom surface of the base station is fixedly connected with a driving motor, and the handle seat is fixedly connected with the top surface of a rotary table in the same axis. According to the structure, the heat shrinking machine for the end milling cutter handle convenient to cool has the advantages that the heating pipe orifice and the cooling pipe orifice are separated in the cutter handle sleeve, so that the effects of quickly heating and quickly cooling the cutter handle are realized, the cutter changing efficiency is further improved conveniently, and an operator is prevented from being scalded by the heated cutter handle.

Description

Thermal shrinkage machine convenient to cooled end mill handle of a knife

Technical Field

The utility model relates to the technical field of tool loading and tool changing for an end mill, in particular to a heat shrinking machine of an end mill handle convenient to cool.

Background

The end mill is the most used milling cutter on a numerical control machine tool, and cutting cutters are arranged on the cylindrical surface and the end surface of the end mill, and can cut simultaneously or independently. The milling cutter is mainly used for plane milling, groove milling, step surface milling and profiling milling.

The end mill is clamped and fixed with the shank through a clamping sleeve fixed on the shank through threads, so that bulges are formed between the shank and the end mill. However, when some end mills with smaller diameters are clamped, no allowance is left for machining threads due to the fact that the diameters of the corresponding positions of the tool shanks are relatively smaller, and some end mills are limited in machining space and interfere with machining if passing through the clamping sleeve; some end mills having smaller diameters are secured directly to the shank by interference fit shaft bore dimensions. However, since the dimensional fit is interference fit, when the end mill is installed or exchanged, the position where the shank is connected with the end mill must be heated, so that the inner diameter of the shaft hole is increased, and the end mill can be conveniently installed or exchanged.

At present, when changing a tool or installing a tool, the combination of the vertical milling cutter head can be realized through the heat shrinkage machine, but because the temperature of the heat shrinkage machine is higher, the knife handle is too high in temperature after changing the tool or installing the tool, so that an operator can directly take out the knife handle or use the knife handle immediately after changing the tool.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the defects of the prior art are overcome, and the heat shrinking machine of the end milling cutter handle convenient to cool is provided, and the cutter handle sleeve is internally divided into a heating pipe orifice and a cooling pipe orifice, so that the effects of quick heating and quick cooling of the cutter handle are realized, the cutter changing efficiency is further improved conveniently, and the heated cutter handle of an operator is prevented from being scalded; the rail rod plays a role in guiding the lifting of the hot air gun and can also play a role in positioning and fixing through the fixing clamp; through the structure of the connecting block and the action of the connecting ring A and the connecting ring B, the moving adjustment and the rotating adjustment of the knife handle sleeve are facilitated, so that the rapid switching between heating and cooling is realized; due to the fact that the protective net and the heat-collecting sleeve are made of heat insulating materials, an operator is prevented from being scalded when the handle sleeve is heated; the heating efficiency and the heating uniformity of the hot air gun to the knife handle are improved through the action of the heat conducting ring arranged in the heating pipe opening and the heat conducting ring in the heat conducting ring; an annular hot air channel can be formed through the U-shaped groove structure of the heat conduction ring, so that a centralized heating area is formed at the position of the knife handle corresponding to the U-shaped groove for heating, the heating efficiency is improved, and the energy consumption is reduced; the handle seat is arranged on the rotary table, so that the heating uniformity of the handle is further ensured.

The technical scheme adopted by the utility model is as follows:

the thermal shrinkage machine of the end milling cutter handle convenient to cool comprises a base station, wherein the top surface of the base station is fixedly connected with a cutter handle seat and a vertical frame, the knife handle seat is positioned at one side of the vertical frame, the vertical frame is provided with a hot air gun which is movably connected up and down, an air outlet pipe of the hot air gun is horizontal and points to the knife handle seat, one end of the air outlet pipe back to the hot air gun is adjustably and fixedly connected with a knife handle sleeve pipe with the axle center vertical to the air outlet pipe, the middle part in the knife handle sleeve is divided into a heating pipe orifice and a cooling pipe orifice through a partition plate, the knife handle sleeve is connected with an air outlet pipe through a connecting block arranged on the side wall, the air outlet pipe can move along the axial direction of the knife handle sleeve and the connecting block to be adjusted to be communicated with the heating pipe orifice or the cooling pipe orifice, the connecting block can rotate around the axis of the air outlet pipe and the air outlet pipe to be adjusted, when the axis of the knife handle sleeve is in a vertical state, the knife handle sleeve and a knife handle limiting hole arranged on the top surface of the knife handle seat are coaxially arranged; the bottom surface fixedly connected with driving motor of base station, the handle seat is with axle center fixed connection in the carousel top surface, driving motor drive carousel rotates with the base station level around the axle center of carousel, the four corners department of base station bottom is equipped with the supporting leg respectively.

The utility model has the further improvement scheme that the end part of the connecting block corresponding to the heating pipe opening is provided with an air vent A penetrating through the corresponding side wall of the heating pipe opening, the end part of the connecting block corresponding to the cooling pipe opening is provided with an air vent B penetrating through the corresponding side of the cooling pipe opening, when the air outlet pipe moves to the maximum stroke position of the heating pipe opening, the air vent A is coaxially communicated with the air outlet pipe, and when the air outlet pipe moves to the maximum stroke position of the cooling pipe opening, the air vent B is coaxially communicated with the air outlet pipe.

According to a further improved scheme of the utility model, the end face, back to the handle sleeve, of the connecting block is provided with a strip-shaped sliding groove along the axial direction of the handle sleeve, the vent hole A and the vent hole B respectively penetrate through groove bottoms at two ends of the strip-shaped sliding groove outwards, the connecting ring B is connected in the strip-shaped sliding groove in a sliding mode, a pipe orifice, back to one end of the hot air gun, of the air outlet pipe is coaxially and fixedly connected with the connecting ring A, and the connecting ring A and the connecting ring B are coaxially and rotatably connected through an inner ratchet ring and an outer ratchet ring which are meshed with each other.

According to a further improved scheme of the utility model, one end, facing the bottom of the groove, of the groove wall of the strip-shaped sliding groove is provided with a flaring groove, the outer side wall of the connecting ring B is provided with a corresponding convex ring corresponding to the flaring groove, and the convex ring and the flaring groove enable the strip-shaped sliding groove to be axially limited relative to the connecting ring B.

According to a further improved scheme of the ratchet-type ratchet wheel, one side of the outer ratchet ring is provided with a positioning convex ring coaxially, the corresponding side of the inner ratchet ring is provided with a positioning concave ring coaxially matched with the positioning convex ring, and when the positioning convex ring is positioned in the positioning concave ring, the outer ratchet ring and the inner ratchet ring are mutually meshed and connected through ratchets.

According to a further improved scheme of the utility model, the surface of the inner wall of the heating pipe opening is coated with a heat insulation layer, and the inner diameter of the heat insulation layer is larger than the outer diameter of the heating end of the cutter handle.

The utility model has the further improvement scheme that a heat-conducting ring is coaxially arranged at the position of the heat-insulating layer corresponding to the vent hole A, the heat-conducting ring is arranged in an annular positioning groove arranged on the heat-insulating layer, the inner diameter of the heat-conducting ring is equal to that of the heat-insulating layer, and the vent hole A penetrates through a matched vent hole C arranged at the position of the heat-conducting ring corresponding to the position and is communicated with the inside of the heat-insulating layer.

In a further improvement scheme of the utility model, the cross section of the heat conducting ring is in a U-shaped groove structure with an opening facing the axis of the heating pipe orifice, and the U-shaped groove forms an annular hot air channel.

According to a further improved scheme of the utility model, a protective net is fixedly connected to the outer side wall of the air outlet pipe in a sleeved mode, one end of the protective net is fixedly connected to the hot air gun, and the other end of the protective net is fixedly connected to the end face, facing one side of the air outlet pipe, of the connecting ring A.

According to a further improved scheme of the utility model, the hot air gun is fixed on a lifting base plate, the lifting base plate vertically moves up and down along a track rod arranged on a stand, the lifting base plate is provided with a track groove correspondingly matched with the track rod, and the bottom of the lifting base plate is also provided with a fixing clamp used for clamping and fixing the track rod.

The utility model has the beneficial effects that:

first, the heat shrinking machine for the end mill shank convenient to cool provided by the utility model separates the inside of the shank sleeve into the heating pipe orifice and the cooling pipe orifice, thereby realizing the effects of rapid heating and rapid cooling of the shank, facilitating further improvement of the tool changing efficiency and avoiding scalding of the shank heated by an operator.

Secondly, according to the heat shrinking machine of the end mill handle convenient to cool, the rail rod plays a role in guiding the lifting of the hot air gun and can also play a role in positioning and fixing through the fixing clamp.

Thirdly, the thermal shrinkage machine of the end mill tool shank convenient to cool facilitates the movement adjustment and the rotation adjustment of a tool shank sleeve through the structure of the connecting block and the effects of the connecting ring A and the connecting ring B, so that the rapid switching of heating and cooling is realized.

Fourthly, the heat shrinkage machine of the end mill handle convenient to cool provided by the utility model has the advantages that the protective net and the heat-gathering sleeve are made of heat-insulating materials, so that an operator is prevented from being scalded when heating the handle sleeve.

Fifth, the heat shrinking machine for the end mill hilt convenient to cool improves the heating efficiency and the heating uniformity of the heat gun on the hilt through the heat conduction rings arranged in the heating pipe opening and the heat conduction rings in the heat conduction rings.

Sixth, according to the heat shrinking machine for the end mill hilt convenient to cool, the annular hot air channel can be formed through the U-shaped groove structure of the heat conduction ring, so that a centralized heating area is formed at the position, corresponding to the U-shaped groove, of the hilt for heating, the heating efficiency is improved, and the energy consumption is reduced.

Seventh, the thermal shrinkage machine for the end mill shank convenient to cool of the utility model further ensures the heating uniformity of the shank by arranging the shank seat on the turntable.

Drawings

Fig. 1 is a schematic front view of the present invention.

FIG. 2 is a schematic enlarged front view of the knife handle sleeve and a part of the air outlet pipe.

FIG. 3 is a schematic enlarged front view of the knife handle sleeve and a part of the air outlet pipe.

Detailed Description

As can be seen from fig. 1 to 3, the heat shrinking machine for conveniently cooling the end mill handle of the utility model comprises a base table 1, wherein a handle base 2 and a vertical frame 5 are fixedly connected to the top surface of the base table 1, the handle base 2 is positioned on one side of the vertical frame 5, the vertical frame 5 is provided with a hot air gun 3 which is movably connected up and down, an air outlet pipe 4 of the hot air gun 3 is horizontal and points to the handle base 2, one end of the air outlet pipe 4, which is back to the hot air gun 3, is adjustably and fixedly connected with a handle sleeve 9, the axis of which is vertical to the air outlet pipe 4, the middle part in the handle sleeve 9 is divided into a heating pipe orifice 14 and a cooling pipe orifice 15 by a partition plate 13, the handle sleeve 9 is connected with the air outlet pipe 4 by a connecting block 10 arranged on the side wall, the air outlet pipe 4 can be adjusted to be communicated with the heating pipe orifice 14 or communicated with the cooling pipe orifice 15 by moving with the connecting block 10 along the axial direction of the handle sleeve 9, the connecting block 10 can be adjusted by rotating around the axis of the air outlet pipe 4 and the air outlet pipe 4, when the axis of the tool holder sleeve 9 is in a vertical state, the tool holder sleeve 9 and a tool holder limiting hole (not shown in the attached drawing of the specification) formed in the top surface of the tool holder base 2 are coaxially arranged; the bottom surface fixedly connected with driving motor 17 of base station 1, handle seat 2 is with axle center fixed connection in carousel 18 top surface, driving motor 17 drive carousel 18 revolutes the axle center and the base station 1 horizontal rotation of carousel 18, the four corners department of base station 1 bottom is equipped with supporting leg 19 respectively.

The tip that the connecting block 10 corresponds to heating pipe orifice 14 is equipped with the air vent A24 that runs through heating pipe orifice 14 and correspond the lateral wall, the connecting block 10 is equipped with the air vent B25 that runs through cooling pipe orifice 15 and correspond the side corresponding to the tip that corresponds to cooling pipe orifice 15, when going out the tuber pipe 4 and removing to heating pipe orifice 14's maximum stroke department air vent A24 communicates with the axle center of play tuber pipe 4, when going out tuber pipe 4 and removing to cooling pipe orifice 15's maximum stroke department air vent B25 communicates with the axle center of play tuber pipe 4.

Connecting block 10 is equipped with bar spout 26 along handle of a knife sleeve 9's axial dorsad at handle of a knife sleeve 9's terminal surface, the tank bottoms at bar spout 26 both ends are outwards passed respectively to air vent A24 and air vent B25, sliding connection has go-between B12 in the bar spout 26, it is connected with go-between A11 with axle center fixedly connected with to go out the mouth of pipe of hot-blast rifle 3 one end dorsad to go out tuber pipe 4, rotate with the axle center through intermeshing's interior ratchet ring and outer ratchet ring between go-between A11 and go-between B12 and be connected.

The groove wall of the strip-shaped sliding groove 26 is provided with a flaring groove 27 facing one end of the groove bottom, the outer side wall of the connecting ring B12 is provided with a corresponding convex ring 28 corresponding to the flaring groove 27, and the convex ring 28 and the flaring groove 27 enable the strip-shaped sliding groove 26 to be axially limited relative to the connecting ring B12.

One side of the outer ratchet ring is also provided with a positioning convex ring with the same axis, the corresponding side of the inner ratchet ring is also provided with a positioning concave ring matched with the positioning convex ring with the same axis, and when the positioning convex ring is positioned in the positioning concave ring, the outer ratchet ring and the inner ratchet ring are mutually meshed and connected through ratchets 29.

The inner wall surface of the heating pipe orifice 14 is coated with a heat insulation layer 20, and the inner diameter of the heat insulation layer 20 is larger than the outer diameter of the heating end of the cutter handle.

The heat-insulating layer 20 is coaxially provided with a heat-conducting ring 22 at a position corresponding to the vent hole A24, the heat-conducting ring 22 is arranged in an annular positioning groove 23 arranged in the heat-insulating layer 20, the inner diameter of the heat-conducting ring 22 is equal to that of the heat-insulating layer 20, and the vent hole A24 penetrates through a matched vent hole C arranged at a position corresponding to the heat-conducting ring 22 and is communicated with the inside of the heat-insulating layer 20.

The cross section of the heat conducting ring 22 is a structure of a U-shaped groove with an opening facing the axis of the heating pipe orifice 14, and the U-shaped groove forms an annular hot air channel.

Fixedly connected with protection network 16 is put to the lateral wall cover of air-out pipe 4, the one end fixed connection of protection network 16 is in hot-blast rifle 3, other end fixed connection in go-between A11 towards the terminal surface of air-out pipe 4 one side.

The hot air gun 3 is fixed on a lifting base plate 6, the lifting base plate 6 vertically moves up and down along a track rod 7 arranged on a vertical frame 5, the lifting base plate 6 is provided with a track groove matched with the track rod 7 correspondingly, and the bottom of the lifting base plate 6 is also provided with a fixing clamp 8 used for clamping the track rod 7.

When the heat gun is used, a knife handle needing knife installation or knife changing is placed on the knife handle seat 2 through the knife handle limiting hole, then the fixing clamp 8 is operated to enable the fixing clamp 8 and the track rod 7 not to be clamped any more, then the height position of the heating pipe orifice 14 of the knife handle sleeve 9 connected with the heat gun 3 is adjusted according to the height of the position of the connection part of the knife handle and the end mill, the position of the knife handle corresponding to the connection part of the end mill needing heating is correspondingly positioned at the position of the heat conducting ring 22, the fixing clamp 8 is released after the height position of the heat gun 3 is adjusted in place, the track rod 7 is clamped by the fixing clamp 8, and the height position of the heat gun 3 is further fixed; then starting the hot air gun 3 and the driving motor 17 to enable a heating device and a fan of the hot air gun 3 to work, and enabling hot air blown out of the hot air gun 3 to heat the connection position of the cutter handle positioned at the position of the heat conducting ring 22, which corresponds to the end mill, to 300-400 ℃, so that the diameter of the cutter handle which is originally in interference fit with the end mill is increased after the cutter handle is heated and expanded; then the hot air gun 3 and the driving motor 17 are closed, at the moment, clearance fit is also formed between the connection part of the cutter handle corresponding to the end mill and the end mill, the fixing clamp 8 and the track rod 7 are not clamped any more by operating the fixing clamp 8, the hot air gun 3 with the cutter handle sleeve 9 is moved upwards to a position far away from the cutter handle, then the fixing clamp 8 is released, the track rod 7 is clamped by the fixing clamp 8, and the height position of the hot air gun 3 is fixed; then taking out the end mill originally fixed on the cutter handle and putting the end mill needing to be replaced to realize cutter changing or directly putting the end mill needing to be replaced into the cutter handle to realize cutter loading; then, the connecting ring B12 is moved to one end of the cooling nozzle 15 along the strip-shaped sliding groove 26 by operating the knife handle sleeve 9, and the knife handle sleeve 9 is in a vertical state again by rotating around the air outlet pipe 4 until the cooling nozzle 15 faces downwards; then the fixing clamp 8 is operated to ensure that the fixing clamp 8 and the track rod 7 are not clamped any more, the height position of the cooling pipe orifice 15 of the handle sleeve 9 connected with the hot air gun 3 is adjusted according to the position of the joint of the handle and the end mill, the part of the handle, which needs to be cooled and corresponds to the joint of the end mill, is positioned in the cooling pipe orifice 15, the height of the part, which needs to be cooled, is lower than or equal to the height of the vent hole B25 and corresponds to the lower position of the vent hole B25, after the height position of the hot air gun 3 is adjusted to the proper position, the fixing clamp 8 is opened to ensure that the height position of the hot air gun 3 is fixed, then the fan of the hot air gun 3 rotates reversely at high speed, and the heating device stops working, the normal-temperature air outside the cooling pipe orifice 15 can be sucked to cool the handle in the cooling pipe orifice 15, the tool changing efficiency is improved, and the operator is prevented from being scalded, the efficiency of tool mounting and tool changing can be improved; the position department that the handle of a knife after the heating is fixed with end milling cutter cools down and upwards takes hot-blast gun 3 to take handle of a knife sleeve pipe 9 rebound to keeping away from the handle of a knife, and then the quick dress sword and the tool changing of the end milling cutter of being convenient for.

Claims (10)

1. The thermal shrinkage machine of end mill handle of a knife convenient to cooling, its characterized in that: including base station (1), the top surface fixedly connected with handle of a knife seat (2) and grudging post (5) of base station (1), handle of a knife seat (2) are located one side of grudging post (5), swing joint's hot-blast rifle (3) about grudging post (5) are equipped with, the play tuber pipe (4) level of hot-blast rifle (3) and directional handle of a knife seat (2), go out tuber pipe (4) and go back to hot-blast rifle (3) one end adjustable fixedly connected with axle center and play tuber pipe (4) vertically handle of a knife sleeve pipe (9), the middle part in handle of a knife sleeve pipe (9) is separated into heating mouth of pipe (14) and cooling mouth of pipe (15) through baffle (13), handle of a knife sleeve pipe (9) are connected with play tuber pipe (4) through connecting block (10) that the lateral wall was established, play tuber pipe (4) can be followed handle of a knife sleeve pipe (9) axial and connecting block (10) removal and be adjusted to communicate with heating mouth of pipe (14) or with cooling mouth of pipe (15) intercommunication, The connecting block (10) can be adjusted by rotating around the axis of the air outlet pipe (4) and the air outlet pipe (4), and when the axis of the knife handle sleeve (9) is in a vertical state, the knife handle sleeve (9) and a knife handle limiting hole arranged on the top surface of the knife handle seat (2) are coaxially arranged; the bottom surface fixedly connected with driving motor (17) of base station (1), handle seat (2) are with axle center fixed connection in carousel (18) top surface, driving motor (17) drive carousel (18) rotate around the axle center and base station (1) level of carousel (18), the four corners department of base station (1) bottom is equipped with supporting leg (19) respectively.

2. A heat shrink machine for an end mill shank to facilitate cooling as recited in claim 1 wherein: connecting block (10) are equipped with air vent A (24) that runs through heating mouth of pipe (14) and correspond the lateral wall corresponding to the tip of heating mouth of pipe (14), connecting block (10) are equipped with air vent B (25) that runs through cooling mouth of pipe (15) and correspond the side corresponding to the tip of cooling mouth of pipe (15), when going out that tuber pipe (4) remove to the maximum stroke department of heating mouth of pipe (14) air vent A (24) and play tuber pipe (4) communicate with the axle center, when going out that tuber pipe (4) remove to the maximum stroke department of cooling mouth of pipe (15) air vent B (25) and play tuber pipe (4) communicate with the axle center.

3. A heat shrink machine for an end mill shank to facilitate cooling as recited in claim 2 wherein: connecting block (10) are equipped with bar spout (26) along the axial of handle of a knife sleeve pipe (9) dorsad to the terminal surface of handle of a knife sleeve pipe (9), air vent A (24) and air vent B (25) outwards pass the tank bottom at bar spout (26) both ends respectively, sliding connection has go-between B (12) in bar spout (26), it is connected with go-between A (11) to go out the mouth of pipe coaxial fixedly connected with go-between A (11) of hot-blast rifle (3) one end dorsad to go out tuber pipe (4), rotate with the axle center through intermeshing's interior ratchet ring and outer ratchet ring between go-between A (11) and go-between B (12) and be connected.

4. A heat shrink machine for an end mill shank to facilitate cooling as set forth in claim 3 wherein: the cell wall of bar spout (26) is equipped with flaring groove (27) towards cell bottom one end, the lateral wall of go-between B (12), be equipped with corresponding bulge loop (28) corresponding to flaring groove (27), bulge loop (28) and flaring groove (27) make bar spout (26) spacing for go-between B (12) axial.

5. A heat shrink machine for an end mill shank to facilitate cooling as set forth in claim 3 wherein: one side of the outer ratchet ring is also provided with a positioning convex ring with the same axis, the corresponding side of the inner ratchet ring is also provided with a positioning concave ring matched with the positioning convex ring with the same axis, and when the positioning convex ring is positioned in the positioning concave ring, the outer ratchet ring and the inner ratchet ring are mutually meshed and connected through ratchets (29).

6. A heat shrink machine for an end mill shank to facilitate cooling as set forth in claim 3 wherein: the inner wall surface of the heating pipe orifice (14) is coated with a heat insulation layer (20), and the inner diameter of the heat insulation layer (20) is larger than the outer diameter of the heating end of the cutter handle.

7. A heat shrink machine for an end mill shank to facilitate cooling as recited in claim 6 wherein: the heat insulation layer (20) is coaxially provided with a heat conduction ring (22) at a position corresponding to the vent hole A (24), the heat conduction ring (22) is arranged in an annular positioning groove (23) formed in the heat insulation layer (20), the inner diameter of the heat conduction ring (22) is equal to that of the heat insulation layer (20), and the vent hole A (24) penetrates through a matched vent hole C formed in the heat conduction ring (22) at a position corresponding to the vent hole A and is communicated with the interior of the heat insulation layer (20).

8. A heat shrink machine for an end mill shank to facilitate cooling as recited in claim 7 wherein: the cross section of the heat conducting ring (22) is in a U-shaped groove structure with an opening facing the axis of the heating pipe orifice (14), and the U-shaped groove forms an annular hot air channel.

9. A heat shrink machine for an end mill shank to facilitate cooling as set forth in claim 3 wherein: fixedly connected with protection network (16) is put to the lateral wall cover of air-out pipe (4), the one end fixed connection of protection network (16) is in hot-blast rifle (3), other end fixed connection in go-between A (11) towards the terminal surface of air-out pipe (4) one side.

10. A heat shrink machine for an end mill shank to facilitate cooling as recited in claim 1 wherein: the hot-blast rifle (3) are fixed in lift base plate (6), lift base plate (6) are along vertical activity from top to bottom of track pole (7) that grudging post (5) were established, lift base plate (6) are equipped with and correspond the track groove that matches with track pole (7), the bottom of lift base plate (6) still is equipped with fixation clamp (8) that are used for pressing from both sides tight fixed track pole (7).

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