Hot high-vacuum tempering furnace for machining cylinder sleeve

Abstract

The invention relates to the technical field of vacuum tempering furnaces, in particular to a thermal high-vacuum tempering furnace for cylinder sleeve processing, which comprises a furnace body and a furnace pipe positioned in the furnace body for tempering treatment, the two drawing rods are both movably installed on the outer wall of the furnace pipe, the two drawing rods are jointly connected with a butt-joint plate, baffles are installed at the upper end and the lower end of the butt-joint plate, and material placing mechanisms are arranged on the baffles; a plurality of cylinder sleeves are separately placed on the material placing table and are arranged on the peripheries of the poke rods in a sleeving mode respectively, the second poke rods and the poke rods are matched to be tightly attached to the inner walls of the cylinder barrels, the multiple cylinder sleeves are fixed to the top end of the material placing table at the same time, deformation caused by stacking of the cylinder sleeves in the tempering treatment process is avoided, and the tempering quality of the cylinder sleeves is improved. And collision between adjacent cylinder sleeves can be avoided when the material placing table is pulled to be taken out from the interior of the furnace pipe after tempering is completed.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum tempering furnaces, in particular to a hot high vacuum tempering furnace for machining cylinder sleeves. Background Art

[0002] Hot high vacuum tempering furnace is a kind of equipment with high heating efficiency and low energy consumption. It is widely used in the tempering treatment of various metal materials in many industries such as machinery manufacturing and mold processing. Tempering in a vacuum state or inert gas environment can effectively prevent the surface oxidation and decarburization of the workpiece and maintain good appearance and performance. In the processing of parts such as cylinder liners, in order to increase the service life of cylinder liners, hot high vacuum tempering furnaces are often used to temper the cylinder liners.

[0003] When some existing hot high vacuum tempering furnaces perform heat treatment on cylinder liners, a large number of cylinder liners are directly stacked on a loading table in the hot high vacuum tempering furnace. After the tempering treatment is completed, the loading table is pulled out and the stacked cylinder liners are taken out. Since the surface of the cylinder liners tends to soften after absorbing a large amount of heat energy during the tempering process, the cylinder liners near the bottom of the loading table are subjected to the pressure generated by the large number of cylinder liners stacked on the top, and are prone to slight deformation, resulting in a decrease in the yield rate of the cylinder liners in the subsequent production process. Summary of the invention

[0004] The object of the present invention is to provide a thermal high vacuum tempering furnace for machining cylinder liners to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A hot high vacuum tempering furnace for cylinder liner processing, comprising a furnace body, a furnace core located in the furnace body for tempering treatment; Two pull-out rods, both of which are movably mounted on the outer wall of the furnace, and the two pull-out rods are commonly connected with a docking plate, and baffles are installed at both upper and lower ends of the docking plate, and the baffles are provided with a material placing mechanism; The material placement mechanism comprises a material placement platform installed on the side wall of the baffle, two U-shaped frames are arranged on the material placement platform, and slide plates are slidably installed in the two U-shaped frames, a plurality of first columns are arranged on the top of one group of slide plates, and a plurality of second columns are arranged on the top of the other group of slide plates, a U-shaped rotating plate is rotatably installed on the top of each of the first columns, a plurality of first toggle rods are arranged on each of the U-shaped rotating plates, and additional blocks are fixedly installed on the tops of the two slide plates; The material placing table is also provided with a mounting plate, on which a plurality of translation rods are arranged, on the outer walls of the translation rods are provided a plurality of set blocks, on which a second toggle rod is arranged, two extension blocks are arranged at the top of the mounting plate, an adjusting screw is arranged on the mounting plate, and sleeves adapted to the adjusting screw are fixedly mounted on the baffles; After the adjacent first toggle rod and second toggle rod are simultaneously placed into the cylinder barrel of a cylinder sleeve, the adjusting screw is controlled to rotate in the sleeve to drive the mounting plate to translate, so that the translation rod translates and the first toggle rod and the adjacent second toggle rod are moved away from each other, so that the cylinder sleeve can be conveniently fixed on the top of the material placement table to facilitate subsequent tempering processing.

[0006] The material placing mechanism also includes two first U-shaped blocks and two second U-shaped blocks, wherein the first U-shaped blocks are rotatably mounted with a first rotating shaft, the outer wall of the first rotating shaft is provided with a toggle plate, the second U-shaped blocks are rotatably mounted with a second rotating shaft, the outer wall of the second rotating shaft is provided with a linkage plate, the outer wall of the first rotating shaft is provided with a first gear ring, and the outer wall of the second rotating shaft is provided with a second gear ring. During the translational movement of the mounting plate, the linkage plate can be pushed to rotate by the extension block on the mounting plate, and the linkage plate drives the second rotating shaft and the second gear ring to rotate during the rotation process. At this time, the first gear ring and the first rotating shaft rotate synchronously, and drive the toggle plate to reverse during the rotation process, and the slide plate, the first column, the second column, the U-shaped rotating plate, and the first toggle rod are pushed to move in the opposite direction by the additional block, that is, the first toggle rod and the second toggle rod located in the same cylinder sleeve are away from each other and fit the inner wall of the cylinder sleeve of the cylinder sleeve to fix the position of the cylinder sleeve.

[0007] A translation chute is arranged at the top of the material placing table, a plurality of sliding blocks are arranged in the translation chute, a plug-in rod is installed on the sliding block, and a plurality of limit blocks are fixedly installed in the translation chute, and the movable space of the sliding block can be limited by the limit blocks.

[0008] The top end of the second column is provided with a groove matching the width of the U-shaped rotating plate, and the side walls of the groove on the U-shaped rotating plate and the second column are provided with through holes matching the diameter of the insertion rod. The insertion rod passes through the groove on the second column and the U-shaped rotating plate located in the groove of the second column, so that the position of the U-shaped rotating plate and the first toggle rod located on the U-shaped rotating plate can be fixed.

[0009] A sliding groove is provided on the inner wall of the bottom end of the furnace, and an F-shaped support plate is slidably installed in the sliding groove. The two raised top ends of the F-shaped support plate are at the same horizontal height as the bottom end side walls of the two material placement tables, so the material placement tables can be conveniently supported by the F-shaped support plate.

[0010] A plurality of protrusions are arranged on the outer wall of the furnace, each of which is provided with a through hole matching the diameter of the pull rod, and the through holes on the protrusions are at the same level as the pull rod, so as to facilitate the translational movement of the pull rod under the guidance of the through holes on the protrusions.

[0011] The tops of the two raised shapes on the F-shaped support plate are both provided with holes, and insertion columns are movably inserted in the holes. The tops of the two insertion columns are respectively fixedly connected to the bottom plate of a material placement table, so that the F-shaped support plate and the two material placement tables can be installed together for use.

[0012] Blocks are provided at both upper and lower ends of the docking plate, and slots matching the blocks are provided on one side of the two baffles close to the docking plate. The size of the block at the bottom end of the docking plate is slightly larger than the size of the slot, so that the docking plate and the baffle at its bottom end can be installed together with interference fit to prevent the baffle from falling off.

[0013] Several of the sliding blocks are provided with insertion columns on their right side walls, and the limiting blocks are provided with insertion slots matching the diameter of the insertion columns on their left side walls. After the insertion columns are inserted into the insertion slots, the sliding blocks can be fixed on the left side of the limiting blocks for use.

[0014] The bottom ends of the first column and the second column are both provided with threaded grooves, and threaded columns are rotatably installed in the threaded grooves. The top end of the slide plate is provided with a plurality of threaded holes matching the diameter of the threaded columns. By adjusting the length of the threaded columns that are rotated and extended into the threaded holes, the height of the first column and the second column can be adjusted according to the height of the cylinder liner for use.

[0015] The mounting plate is placed on the left side of the baffle, the two extension blocks are movably pressed against a linkage plate respectively, and the translation rods on the mounting plate all penetrate the baffle and extend to the top of the material placement table, so that the first toggle rod and the second toggle rod can be used in coordination.

[0016] The baffle is provided with two openings with the same width and height as the U-shaped frame, and the two U-shaped frames are respectively fixedly installed in an opening on the baffle, so that the additional block on the U-shaped frame can extend to the left side of the baffle and movably fit the toggle plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention places a plurality of cylinder liners separately on a material placement table and respectively sleeves them on the periphery of a first toggle rod, and the second toggle rod cooperates with the first toggle rod to tightly contact the inner wall of the cylinder barrel, so that the plurality of cylinder liners are simultaneously fixed on the top of the material placement table, thereby preventing the cylinder liners from being deformed due to being stacked together during the tempering process, and preventing adjacent cylinder liners from colliding when the material placement table is pulled out of the furnace after the tempering process is completed.

[0018] By controlling the rotation of the adjusting screw, the mounting plate is pushed to move to the left. The extension block on the mounting plate will push the linkage plate to rotate upward during the translation movement. At this time, the second rotating shaft fixedly connected to the linkage plate rotates and the first rotating shaft is reversed through the cooperation of the second gear ring and the first gear ring, so that the toggle plate located on the first rotating shaft pushes the additional block and the slide plate to move in the opposite direction of the translation rod, that is, the first toggle rod and the second toggle rod move in opposite directions and fit the inner wall of the cylinder liner to fix the position of the cylinder liner to be processed.

[0019] By moving the sliding block to the right in the translational slide groove, the insertion rod is inserted into the through hole on the U-shaped rotating plate and the second column groove, which can limit the U-shaped rotating plate from continuing to rotate around the first column. When taking the cylinder sleeve on the loading table, the sliding block can be pushed to move to the left, and at the same time, multiple insertion rods are disconnected from the U-shaped rotating plate and the second column, so that the U-shaped rotating plate can be quickly pushed to rotate upward, so as to facilitate the taking of the cylinder sleeve after the tempering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure of the furnace body of the present invention.

[0022] Figure 3 It is a schematic diagram of the partial internal structure of the furnace body of the present invention.

[0023] Figure 4 It is a schematic diagram of the mounting plate structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the sliding block structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the baffle structure of the present invention.

[0026] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure in the middle.

[0027] Figure 8 It is a schematic diagram of the local structure of the material placing mechanism of the present invention.

[0028] Fig. 9It is a schematic diagram of the structure of the material placing mechanism of the present invention.

[0029] Fig.10 It is a schematic diagram of the structure of the U-shaped rotating plate of the present invention.

[0030] Fig.11 For the present invention Fig. 9 Enlarged schematic diagram of the structure at point B in the middle.

[0031] Fig.12 It is a schematic diagram of the furnace structure of the present invention.

[0032] In the figure: 1, furnace body; 2, furnace core; 3, pull rod; 4, docking plate; 5, protrusion; 6, baffle; 7, material placement mechanism; 8, material placement table; 9, translation slide; 10, limit block; 11, sliding block; 12, plug-in rod; 13, U-shaped frame; 14, slide plate; 15, first column; 16, U-shaped rotating plate; 17, second column; 18, first toggle rod; 19, additional block; 20, mounting plate; 21, translation rod; 22, set block; 23, second toggle rod; 24, adjusting screw; 25, sleeve; 26, first U-shaped block; 27, first rotating shaft; 28, toggle plate; 29, first gear ring; 30, second U-shaped block; 31, second rotating shaft; 32, second gear ring; 33, linkage plate; 34, sliding groove; 35, F-type support plate; 36, extension block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 12The present invention provides a technical solution: a hot high vacuum tempering furnace for cylinder liner processing, comprising a furnace body 1, a furnace liner 2 is installed in the furnace body 1, an opening is provided on the furnace liner 2, and a vacuum pump is installed in the opening, and one end of the vacuum pump extends out of the inner cavity of the furnace body 1, and a heating element is installed on the inner wall of the furnace liner 2 for heating and tempering the cylinder liner. This is a relatively mature prior art and will not be described in detail here. Two pull rods 3 are movably installed on the outer wall of the furnace liner 2, and a plurality of protrusions 5 are fixedly installed on the outer wall of the furnace liner 2, and the protrusions 5 are all provided with through holes matching the diameter of the pull rods 3. The pull rods 3 pass through the plurality of protrusions 5, which can facilitate the pull rods 3 to be able to Under the influence of multiple protrusions 5, the two pull-out rods 3 move in translation, and the left sides are commonly connected with a docking plate 4. In actual use, when the docking plate 4 is pulled out from the furnace 2, a transfer rack is required to support the docking plate 4 and the material placement table 8 that are moved out of the inner cavity of the furnace 2, and baffles 6 are provided at the upper and lower ends of the docking plate 4. The two baffles 6 are provided with slots on one side close to the docking plate 4, and blocks matching the slots are provided at the upper and lower ends of the docking plate 4, and the size of the block at the bottom end of the docking plate 4 is slightly larger than the size of the slot, so that the docking plate 4 and the baffle 6 at the bottom end thereof can be installed together with interference fit to prevent the baffle 6 at the bottom end of the docking plate 4 from falling down.

[0035] The right sides of the two baffles 6 are fixedly installed with a material placement mechanism 7, which includes a material placement table 8 and a mounting plate 20. The material placement table 8 is fixedly installed on the baffle 6, and a translation slide 9 is arranged on the top of the material placement table 8. A plurality of sliding blocks 11 are movably installed in the translation slide 9, and the right side walls of the plurality of sliding blocks 11 are movably fitted with a limited block 10, and the limit blocks 10 are fixedly installed on the inner wall of the translation slide 9. A plug-in column is arranged on the right side wall of the sliding block 11, and a plug-in groove matching the diameter of the plug-in column is arranged on the left side of the limit block 10, so that after the limit block 10 and the sliding block 11 are fitted together, the material placement mechanism 7 includes a material placement table 8 and a mounting plate 20. The insertion column is inserted into the insertion slot to limit the sliding block 11 from moving further, and the sliding block 11 is composed of a slider and an L-shaped mounting plate adapted to the translational slide slot 9. The slider is located in the translational slide slot 9, and the L-shaped mounting plate is installed on the top of the slider and extends out of the translational slide slot 9, and the insertion rod 12 is fixedly installed on the L-shaped mounting plate. The top of the material placement table 8 is provided with a groove, and two U-shaped frames 13 are fixedly installed on the inner wall of the bottom end of the groove. The baffle 6 is provided with two openings matching the width and height of the U-shaped frame 13, and the U-shaped frame 13 is fixedly installed in the opening. A slide plate 14 is slidably installed in the U-shaped frame 13, and the top of the slide plate 14 near the back of the material placement table 8 A plurality of first columns 15 are arranged at the end, and a plurality of second columns 17 are fixedly installed at the top of the slide plate 14 near the front end surface of the material placing table 8. The bottom ends of the first columns 15 and the second columns 17 are provided with threaded grooves, and threaded columns are rotatably installed in the threaded grooves. The top of the slide plate 14 is provided with a plurality of threaded holes matching the diameter of the threaded columns, so that during use, the threaded columns can be controlled to rotate to extend out of the threaded grooves and into the threaded holes on the slide plate 14, so that the height of the U-shaped rotating plate 16 can be appropriately adjusted according to the height of the cylinder sleeve for use, and the top ends of the plurality of first columns 15 are rotatably installed with U-shaped rotating plates. 16, the tops of the plurality of second columns 17 are provided with grooves, and the width of the grooves is the same as the width of the U-shaped rotating plate 16, and the grooves on the second columns 17 and the left and right side walls of the U-shaped rotating plate 16 are provided with through holes matching the diameter of the insertion rod 12. After the insertion rod 12 is inserted into the through holes on the U-shaped rotating plate 16 and the grooves of the second columns 17, the U-shaped rotating plate 16 can be restricted from continuing to rotate around the first column 15. The U-shaped rotating plate 16 is movably provided with a plurality of first toggle rods 18, which are inserted into the cylinder of the cylinder sleeve through the first toggle rods 18, so as to facilitate the later limiting treatment of the cylinder sleeve.

[0036] The mounting plate 20 is located on the left side of the baffle 6, and a plurality of translation rods 21 are fixedly mounted on the mounting plate 20. The translation rods 21 all penetrate the baffle 6 and extend to the right side of the baffle 6, and a plurality of set blocks 22 are arranged on the outer wall of the translation rod 21, and a second toggle rod 23 is fixedly mounted on the top of the set blocks 22, and two extension blocks 36 are fixedly mounted on the top of the mounting plate 20, and a threaded through hole is arranged on the mounting plate 20, and an adjusting screw 24 is rotatably mounted in the threaded through hole, and a sleeve 25 is movably sleeved on the outer wall of the adjusting screw 24, and the sleeve 25 is fixedly mounted on the left side wall of the baffle 6, and a threaded groove matching the outer thread of the adjusting screw 24 is arranged on the inner wall of the sleeve 25, and the adjusting screw 24 is rotated by controlling the rotation of the adjusting screw 24. The mounting plate 20 and the translation rod 21 can be conveniently fixed at different positions for use. Two first U-shaped blocks 26 are fixedly installed on the left side wall of the baffle 6. First rotating shafts 27 are rotatably installed on the two first U-shaped blocks 26. A toggle plate 28 is fixedly installed on the outer wall of the first rotating shaft 27. An additional block 19 is fixedly installed on the top of the slide plate 14. The toggle plates 28 are movably fitted on the additional block 19, and the side wall of the toggle plate 28 close to the additional block 19 is an arc surface to prevent the toggle plate 28 from getting stuck when pushing the additional block 19 to move. A first toothed ring 29 is fixedly installed on the outer wall of the first rotating shaft 27. The bottom end of the first toothed ring 29 is movably fitted with a second toothed ring 32. The first toothed ring 29 The outer wall of the second gear ring 32 is provided with a plurality of teeth that can mesh with each other, so as to facilitate the rotation of the second gear ring 32 during the rotation of the first gear ring 29. The second gear ring 32 is fixedly mounted on the outer wall of the second rotating shaft 31. A second U-shaped block 30 is rotatably mounted on the outer wall of the second rotating shaft 31, and the second U-shaped block 30 is fixedly mounted on the left side wall of the baffle 6. A linkage plate 33 is fixedly mounted on the outer wall of the second rotating shaft 31, and the linkage plate 33 is movably attached to the top of the extension block 36. After a plurality of cylinder sleeves are respectively mounted on the outer wall of a second toggle rod 23 and are at the top of the material placement table 8, a first toggle rod 18 is simultaneously placed in the cylinder barrel of the cylinder sleeve, and the rotation of the adjusting screw 24 is controlled. The position of the mounting plate 20 is adjusted by movement. The extension block 36 on the mounting plate 20 pushes the linkage plate 33 to rotate upward during the translation movement. At this time, the second rotating shaft 31 fixedly connected to the linkage plate 33 rotates and cooperates with the first gear ring 29 through the second gear ring 32 to reverse the first rotating shaft 27, so that the toggle plate 28 located on the first rotating shaft 27 pushes the additional block 19 and the slide plate 14 to move in the opposite direction of the translation rod 21, that is, the first toggle rod 18 and the second toggle rod 23 move in opposite directions and fit the inner wall of the cylinder liner, so as to fix the position of the cylinder liner conveniently and avoid collision between adjacent cylinder liners when the cylinder liner is transported into the furnace 2 for tempering treatment, resulting in deformation and damage thereof.

[0037] A sliding groove 34 is provided on the inner wall of the bottom end of the furnace 2, and an F-type support plate 35 is slidably installed in the sliding groove 34. The tops of the two raised parts of the F-type support plate 35 are provided with holes, and the bottom end of the loading platform 8 is provided with plug-in columns matching the holes. By inserting the plug-in columns into the holes on the F-type support plate 35, it is convenient to pull the F-type support plate 35 for translational movement inside the furnace 2 when the loading platform 8 moves out of the inner cavity of the furnace 2, and the tops of the two raised parts of the F-type support plate 35 are at the same horizontal height as the bottom ends of the two loading platforms 8, so as to facilitate the support of the two loading platforms 8 during use, and avoid the situation where the loading platform 8 is subjected to excessive weight and breaks between the baffle 6 after multiple cylinder sleeves are placed on the top of the loading platform 8.

[0038] When the present invention is in use, the U-shaped rotating plate 16 is controlled to rotate upward to disengage from the contact with the second column 17, and a plurality of cylinder sleeves are separated and respectively placed on the periphery of a second toggle rod 23, that is, a single cylinder sleeve is movably sleeved on the outer wall of a second toggle rod 23, and then the U-shaped rotating plate 16 is controlled to rotate downward to extend into the groove on the second column 17. At this time, the first toggle rod 18 located on the U-shaped rotating plate 16 will synchronously extend into the cylinder barrel of a cylinder sleeve, that is, a first toggle rod 18 and a second toggle rod 23 are placed in the cylinder barrel of each cylinder sleeve, and the sliding block 11 is controlled to translate in the translation slot 9, driving the insertion rod 12 to translate and penetrate the second column 17 and the U-shaped rotating plate 16, and limiting the U-shaped rotating plate 16 from continuing to rotate. At this time, the limit block 10 and the sliding block 11 are connected. By inserting the insertion column into the insertion groove and connecting them as a whole, the position of the insertion rod 12 is fixed, and the adjusting screw 24 can be controlled to rotate and extend into the sleeve 25. The mounting plate 20 is pushed to move to the left by the adjusting screw 24. The extension block 36 on the mounting plate 20 will push the linkage plate 33 to rotate upward during the translation movement. At this time, the second rotating shaft 31 fixedly connected to the linkage plate 33 rotates and cooperates with the first gear ring 29 through the second gear ring 32 to reverse the first rotating shaft 27, so that the toggle plate 28 located on the first rotating shaft 27 pushes the additional block 19 and the slide plate 14 to move in the opposite direction of the translation rod 21, that is, the first toggle rod 18 and the second toggle rod 23 move in opposite directions and fit the inner wall of the cylinder sleeve, and the position of the cylinder sleeve is fixed, so that the placing table 8 can be pushed into the furnace 2 for tempering processing.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot high vacuum tempering furnace for cylinder liner processing, characterized in that: It includes a furnace body and a furnace core located in the furnace body and undergoing tempering treatment; Two pull-out rods, both of which are movably mounted on the outer wall of the furnace, and the two pull-out rods are commonly connected with a docking plate, and baffles are installed at both upper and lower ends of the docking plate, and the baffles are provided with a material placing mechanism; The material placement mechanism comprises a material placement platform installed on the side wall of the baffle, two U-shaped frames are arranged on the material placement platform, and slide plates are slidably installed in the two U-shaped frames, a plurality of first columns are arranged on the top of one group of slide plates, and a plurality of second columns are arranged on the top of the other group of slide plates, a U-shaped rotating plate is rotatably installed on the top of each of the first columns, a plurality of first toggle rods are arranged on each of the U-shaped rotating plates, and additional blocks are fixedly installed on the tops of the two slide plates; The material placing table is also provided with a mounting plate, on which a plurality of translation rods are arranged, on the outer walls of the translation rods are provided a plurality of set blocks, on which a second toggle rod is arranged, two extension blocks are arranged at the top of the mounting plate, an adjusting screw is arranged on the mounting plate, and sleeves adapted to the adjusting screw are fixedly mounted on the baffles; After the adjacent first toggle rod and second toggle rod are simultaneously placed into the cylinder barrel of a cylinder sleeve, the adjusting screw is controlled to rotate in the sleeve to drive the mounting plate to translate, so that the translation rod translates and the first toggle rod and the adjacent second toggle rod are moved away from each other, so that the cylinder sleeve can be conveniently fixed on the top of the material placement table to facilitate subsequent tempering processing.

2. A hot high vacuum tempering furnace for cylinder liner processing according to claim 1, characterized in that: The material placing mechanism also includes two first U-shaped blocks and two second U-shaped blocks, wherein the first U-shaped blocks are rotatably mounted with a first rotating shaft, the outer wall of the first rotating shaft is provided with a toggle plate, the second U-shaped blocks are rotatably mounted with a second rotating shaft, the outer wall of the second rotating shaft is provided with a linkage plate, the outer wall of the first rotating shaft is provided with a first gear ring, and the outer wall of the second rotating shaft is provided with a second gear ring. During the translational movement of the mounting plate, the linkage plate can be pushed to rotate by the extension block on the mounting plate, and the linkage plate drives the second rotating shaft and the second gear ring to rotate during the rotation process. At this time, the first gear ring and the first rotating shaft rotate synchronously, and drive the toggle plate to reverse during the rotation process, and the slide plate, the first column, the second column, the U-shaped rotating plate, and the first toggle rod are pushed to move in the opposite direction by the additional block, that is, the first toggle rod and the second toggle rod located in the same cylinder sleeve are away from each other and fit the inner wall of the cylinder sleeve of the cylinder sleeve to fix the position of the cylinder sleeve.

3. The hot high vacuum tempering furnace for cylinder liner processing according to claim 1, characterized in that: A translation chute is arranged at the top of the material placing table, a plurality of sliding blocks are arranged in the translation chute, a plug-in rod is installed on the sliding block, and a plurality of limit blocks are fixedly installed in the translation chute, and the movable space of the sliding block can be limited by the limit blocks.

4. The hot high vacuum tempering furnace for cylinder liner processing according to claim 1, characterized in that: The top end of the second column is provided with a groove matching the width of the U-shaped rotating plate, and the side walls of the groove on the U-shaped rotating plate and the second column are provided with through holes matching the diameter of the insertion rod. The insertion rod passes through the groove on the second column and the U-shaped rotating plate located in the groove of the second column, so that the position of the U-shaped rotating plate and the first toggle rod located on the U-shaped rotating plate can be fixed.

5. The hot high vacuum tempering furnace for cylinder liner processing according to claim 1, characterized in that: A sliding groove is provided on the inner wall of the bottom end of the furnace, and an F-shaped support plate is slidably installed in the sliding groove. The two raised top ends of the F-shaped support plate are at the same horizontal height as the bottom end side walls of the two material placement tables, so the material placement tables can be conveniently supported by the F-shaped support plate.

6. The hot high vacuum tempering furnace for cylinder liner processing according to claim 1, characterized in that: A plurality of protrusions are arranged on the outer wall of the furnace, each of which is provided with a through hole matching the diameter of the pull rod, and the through holes on the protrusions are at the same level as the pull rod, so as to facilitate the translational movement of the pull rod under the guidance of the through holes on the protrusions.

7. The hot high vacuum tempering furnace for cylinder liner processing according to claim 5, characterized in that: The tops of the two raised shapes on the F-shaped support plate are both provided with holes, and insertion columns are movably inserted in the holes. The tops of the two insertion columns are respectively fixedly connected to the bottom plate of a material placement table, so that the F-shaped support plate and the two material placement tables can be installed together for use.

8. The hot high vacuum tempering furnace for cylinder liner processing according to claim 1, characterized in that: Blocks are provided at both upper and lower ends of the docking plate, and slots matching the blocks are provided on one side of the two baffles close to the docking plate. The size of the block at the bottom end of the docking plate is slightly larger than the size of the slot, so that the docking plate and the baffle at its bottom end can be installed together with interference fit to prevent the baffle from falling off.

9. The hot high vacuum tempering furnace for cylinder liner processing according to claim 3, characterized in that: Several of the sliding blocks are provided with insertion columns on their right side walls, and the limiting blocks are provided with insertion slots matching the diameter of the insertion columns on their left side walls. After the insertion columns are inserted into the insertion slots, the sliding blocks can be fixed on the left side of the limiting blocks for use.

10. The hot high vacuum tempering furnace for cylinder liner processing according to claim 1, characterized in that: The bottom ends of the first column and the second column are both provided with threaded grooves, and threaded columns are rotatably installed in the threaded grooves. The top end of the slide plate is provided with a plurality of threaded holes matching the diameter of the threaded columns. By adjusting the length of the threaded columns that are rotated and extended into the threaded holes, the height of the first column and the second column can be adjusted according to the height of the cylinder liner for use.

11. The hot high vacuum tempering furnace for cylinder liner processing according to claim 1, characterized in that: The mounting plate is placed on the left side of the baffle, the two extension blocks are movably pressed against a linkage plate respectively, and the translation rods on the mounting plate all penetrate the baffle and extend to the top of the material placement table, so that the first toggle rod and the second toggle rod can be used in coordination.

12. The hot high vacuum tempering furnace for cylinder liner processing according to claim 1, characterized in that: The baffle is provided with two openings with the same width and height as the U-shaped frame, and the two U-shaped frames are respectively fixedly installed in an opening on the baffle, so that the additional block on the U-shaped frame can extend to the left side of the baffle and movably fit the toggle plate.

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