Vertical grinding machine

Abstract

The utility model provides a vertical grinding machine, and belongs to the technical field of grinding machines. The problem that in the prior art, when a vertical grinding machine is used for machining a workpiece, the machining efficiency is low due to the fact that a grinding head is repaired, stopped, disassembled and replaced due to different machining parts is solved. The vertical grinding machine comprises a machine frame with a cross beam, a workpiece positioning rotary table capable of horizontally rotating is arranged on the front side of the cross beam of the machine frame, tool magazines are arranged on the two transverse sides of the workpiece positioning rotary table of the machine frame, and finishing seats are further arranged between the workpiece positioning rotary table and the tool magazines of the machine frame. A dressing disc and a dressing pen located above the dressing disc are fixed to the dressing base, the dressing base can be vertically and rotatably arranged on the rack, and when the dressing base rotates downwards to be in a horizontal state, the dressing base is lower than the workpiece positioning rotary table; an inner hole grinding head assembly and an outer circle grinding head assembly which can slide up, down, left and right are connected to the cross beam side by side. The utility model has the advantage that the processing efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the vertical grinder technical field and relates to a vertical grinder. BACKGROUND

[0002] The grinder is a kind of equipment using high-speed rotating grinding head to carry out grinding processing to workpiece and can realize precision grinding purpose.China patent document discloses a vertical grinder (grant announcement number: CN201669609U), including base, stand, vertical sliding table, electric spindle, the base one end is equipped with workbench, and the other end is equipped with the stand with stand sliding table;The vertical sliding table is provided with horizontal guide rail, and the vertical guide rail is arranged on the stand, and the stand slides left and right along the horizontal guide rail on the stand sliding table;Vertical sliding table is installed with the electric spindle with grinding wheel.

[0003] The vertical grinder has the following shortcomings in use process: 1, because the material and processing step of different specifications workpiece are different, so the grinding wheel is prone to wear phenomenon in use process, and then the precision of the grinding wheel is affected, so the precision of the grinding wheel is required to reach the use requirement after the grinding wheel is worn, but the operation is troublesome when disassembling the grinding wheel from time to time, and the polishing efficiency of the equipment is greatly reduced;2, the vertical grinder can only load one grinding head each time during grinding operation, and the function is single, for the workpiece that needs to grind and process inner hole and outer circle, the matching grinding wheel needs to be replaced when processing different parts of workpiece, and the processing efficiency is low. SUMMARY

[0004] The utility model aims at the above-mentioned problems existing in prior art and provides a vertical grinder.The technical problem to be solved by the utility model is to solve the problem of low processing efficiency caused by grinding head trimming stoppage disassembly and grinding head replacement due to different processing parts when the existing vertical grinder processes workpiece.

[0005] The purpose of the utility model can be realized by the following technical schemes:

[0006] A vertical grinder, including the rack with crossbeam, the rack is provided with the workpiece positioning rotary table that can horizontally rotate on the front side of crossbeam, characterized by, the cutter library is arranged on the transverse both sides of workpiece positioning rotary table of the rack, the finishing seat is also arranged between workpiece positioning rotary table and cutter library of the rack, finishing seat is respectively fixed with finishing sand dish and finishing sand pen above finishing sand dish, finishing seat is vertically rotatable and arranged on the rack, and when finishing seat is downwardly rotated to flat state, the height of finishing seat is lower than the height of workpiece positioning rotary table, and the crossbeam is connected with two inner hole grinding head assemblies and outer circle grinding head assemblies that can slide up and down and left and right respectively in parallel.

[0007] The inner hole grinding head assembly and the outer circle grinding head assembly arranged on the beam can slide up and down and left and right, and the workpiece positioning turntable arranged on the front side of the beam can drive the workpiece to rotate circumferentially, so that the inner hole and the outer circle can be ground after the workpiece is clamped once, without stopping to replace the grinding head, and the machining efficiency is high; meanwhile, the sanding pen and the sanding disc on each dressing seat of the vertical grinding machine work cooperatively, the sanding pen can be used for fine adjustment and small range dressing, and the sanding disc can be used for large area rapid dressing, so as to improve the flexibility of machining and realize complex dressing tasks, the on-line dressing of the inner hole grinding head and the outer circle grinding head can be realized respectively without disassembling the grinding head, when no dressing operation is performed, the dressing seat can be turned down to a flat state, so that the height of the dressing seat is lower than the height of the workpiece positioning turntable, the dressing mechanism occupies the height space as much as possible, thereby facilitating the movement and replacement of the inner hole grinding head and the outer circle grinding head, and the grinding efficiency of the grinding machine is greatly improved; in addition, the lengths of the tool shanks, the thicknesses of the grinding wheels and the outer diameters of the inner hole grinding head and the outer circle grinding head in the tool magazine are different, so that the machining requirements of different workpieces can be met, and the machining efficiency is further improved.

[0008] In the vertical grinding machine, the dressing seat comprises a block-shaped base and an extension frame in the shape of and vertically connected to the base, the sanding disc is arranged on the base, the sanding pen is arranged on the extension frame, a cylinder is installed on the rack, the base is connected with a rotating shaft, the end of the rotating shaft is connected with a crank block, and the output shaft of the cylinder is arranged transversely and perpendicularly to the rotating shaft and is hinged to the crank block. The back and forth movement of the output shaft of the cylinder drives the dressing seat to turn down to a flat state or turn up to reset, and meanwhile, the extension frame in the shape of can form a gap for the sanding disc arranged on the base, so that the structure of the sanding pen and the sanding disc arranged vertically is more compact and the layout is more reasonable. In addition, a rotary motor can also be used to drive the vertical rotation of the dressing seat.

[0009] In the vertical grinding machine, the sanding pen seat is detachably fixed on the extension frame by bolts, the sanding pen is fixed on the sanding pen seat, the base is connected with a mounting shaft, and the sanding disc is in the shape of a circular truncated cone and is detachably sleeved and fixed on the mounting shaft. The stability of the sanding pen installation is ensured, and the disassembly and assembly of the sanding pen can be better realized, the sanding pen can be replaced as a whole, and the dressing requirements of different shapes and sizes of grinding wheels can be better met; the stability of the sanding disc installation is ensured, and the disassembly and assembly of the sanding disc can be better realized, the sanding disc can be replaced, and the dressing requirements of different shapes and sizes of grinding wheels can be better met; meanwhile, the area of the top surface of the sanding disc is greater than the area of the bottom surface, so that the shape of the sanding disc can better match the shape of the grinding head, and the dressing operation of the grinding head can be better performed.

[0010] In the vertical grinding machine, a plurality of first cooling liquid spray pipes and a plurality of second cooling liquid spray pipes are arranged on the base respectively, the liquid outlet of the first cooling liquid spray pipe is arranged towards the sand trimming pen, and the liquid outlet of the second cooling liquid spray pipe is arranged towards the sand trimming dish. The first cooling liquid spray pipe and the second cooling liquid spray pipe can respectively spray cooling liquid, which can avoid high temperature in the trimming process, reduce friction in the trimming process, and clean the debris generated in the trimming process.

[0011] In the vertical grinding machine, the sand trimming pen has at least three, one of which is arranged horizontally, and the other two are arranged vertically on the upper and lower sides of the sand trimming pen. The end of the sand trimming pen is in the shape of a circular truncated cone, and the end face has a trimming tip in the shape of a circular cone. The trimming tip allows the sand trimming pen to better achieve fine adjustment and small-range trimming of the grinding head. The three-point distributed sand trimming pens can respectively adjust the bottom surface, top surface and circumference of the grinding head, and the sand trimming dish slightly inclined towards the workpiece positioning turntable can quickly trim the bottom surface and circumference of the grinding head. The sand trimming pen and the sand trimming dish are roughly in the shape of L, which can achieve complex trimming tasks and processing flexibility, and meet the trimming needs of sand wheels of different shapes and sizes.

[0012] In the vertical grinding machine, the workpiece positioning turntable is movably arranged on the rack, and two horizontally arranged cross sliding plates are connected to the cross beam of the rack. Each cross sliding plate is vertically connected to a vertical sliding plate, the inner hole grinding head assembly is connected to one of the vertical sliding plates, and the other vertical sliding plate is connected to a rotatable rotary table, and the outer circle grinding head assembly is connected to the rotary table. The two cross sliding plates can drive the inner hole grinding head assembly and the outer circle grinding head assembly to move left and right to the top of the workpiece positioning turntable, and the two vertical sliding plates can drive the inner hole grinding head assembly and the outer circle grinding head assembly to move up and down. The workpiece positioning turntable can drive the workpiece to move forward and backward and rotate circumferentially, better achieving one-time clamping of the workpiece, completing the grinding of the inner hole and the outer circle without stopping and replacing the grinding head, and improving the processing efficiency. At the same time, the rotary table can drive the outer circle grinding head assembly to rotate synchronously relative to the vertical sliding plate, so that the outer circle grinding head assembly can grind the workpiece at multiple angles and directions, thereby achieving three-dimensional polishing of the workpiece and further improving the processing efficiency.

[0013] In the vertical grinding machine, the cross beams of the frame are provided with slide rails and two nut screw rod assemblies at intervals in the up-down direction, the nut screw rod assembly comprises a screw rod and a nut seat screwed on the screw rod, the slide rails and the screw rods are fixed on the frame in the left-right direction, two cross plates are slidably arranged on the slide rails in the left-right direction, and the two nut seats are connected with the two cross plates respectively. The position of the two cross plates is more accurate, and the nut screw rod assembly is used, and the cross plate can be locked when not moving because the nut seat is screwed on the screw rod, thereby improving the processing efficiency and quality. In addition, in addition to using the nut screw rod assembly, the two cross plates can also be driven by a cylinder respectively.

[0014] In the vertical grinding machine, the slide rails are three, the upper, middle and lower parts of the cross plate are connected to the three slide rails through the sliding blocks, the slide rails and the screw rods are arranged at intervals in the up-down direction, the frame has a recessed mounting groove at the position between the two slide rails, the two nut screw rod assemblies are arranged in the mounting groove, and the screw rods of the two nut screw rod assemblies are parallel to each other and arranged in an up-down staggered manner. By connecting the upper, middle and lower parts of the cross plate to the three first slide rails through the sliding blocks, the movement of the cross plate is more stable and smooth, so that the position of the inner hole grinding head assembly and the outer circle grinding head assembly arranged on the cross plate is more accurate, and the processing efficiency and quality are improved. At the same time, by arranging the first slide rails and the screw rods at intervals in the up-down direction and arranging the two nut screw rod assemblies in the mounting groove, the structure of the vertical grinding machine is more compact, and the length of the screw rods of the two nut screw rod assemblies is more reasonable by arranging the screw rods of the two nut screw rod assemblies in parallel and in an up-down staggered manner, thereby reducing the manufacturing cost.

[0015] In the vertical grinding machine, the tool magazine comprises a mounting seat and a support turntable rotatably arranged on the mounting seat, a plurality of elastic clamping jaws are arranged on the edge of the support turntable in the circumferential direction, and a plurality of spare inner hole grinding heads and outer circle grinding heads are clamped on the elastic clamping jaws respectively. The length of the shank, the thickness of the grinding wheel and the outer diameter of the spare inner hole grinding heads and outer circle grinding heads in the tool magazine are different, so that different workpiece processing requirements can be met, and the processing efficiency is improved.

[0016] Compared with the prior art, the vertical grinder has the advantages that the inner hole grinding head assembly and the outer circle grinding head assembly arranged on the beam can slide up and down and left and right, the workpiece positioning turntable arranged on the front side of the beam can drive the workpiece to move forward and backward and rotate circumferentially, the workpiece is clamped once, the grinding of the inner hole and the outer circle is completed, the grinding head does not need to be replaced during shutdown, and the machining efficiency is high; meanwhile, the sand trimming pen and the sand trimming disc on each trimming seat of the vertical grinder work cooperatively, the online trimming of the inner hole grinding head and the outer circle grinding head can be respectively realized without disassembling the grinding head, when the trimming operation is not performed, the trimming seat can be downwardly rotated to a flat state, so that the height of the trimming seat is lower than the height of the workpiece positioning turntable, the height space occupied by the trimming mechanism can be avoided and maximally reduced, the movement and replacement of the inner hole grinding head and the outer circle grinding head are facilitated, and the grinding efficiency of the grinder is greatly improved; in addition, the tool handle length, the grinding wheel thickness and the outer diameter of the inner hole grinding head and the outer circle grinding head in the tool library are different, so that the machining requirements of different workpieces can be met, and the machining efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective structural schematic view of the vertical grinder.

[0018] Figure 2 is Figure 1 is a partial enlarged view of A in FIG.

[0019] Figure 3 is Figure 1 is a partial enlarged view of B in FIG.

[0020] Figure 4 is a partial structural schematic view of the vertical grinder in elevation.

[0021] Figure 5 is a partial perspective structural schematic view of the vertical grinder after the horizontal drag plate and the vertical drag plate are removed.

[0022] Figure 6 is a structural schematic view of the trimming seat and the cylinder connection of the vertical grinder.

[0023] Figure 7 is a perspective structural schematic view of the sand trimming pen of the vertical grinder.

[0024] Figure 8 is an exploded view of the tool library of the vertical grinder.

[0025] In the figure, 1, rack; 1a, crossbeam; 1b, mounting groove; 2, workpiece positioning rotary table; 3, tool magazine; 3a, mounting seat; 3b, supporting rotary disc; 3c, elastic clamping jaw; 4, dressing seat; 4a, base; 4b, extension frame; 5, dressing dish; 6, dressing pen; 6a, dressing tip; 7, inner hole grinding head assembly; 8, outer circle grinding head assembly; 9, air cylinder; 10, rotating shaft; 11, crank block; 12, dressing pen seat; 13, mounting shaft; 14, first cooling liquid spray pipe; 15, second cooling liquid spray pipe; 16, horizontal drag plate; 17, vertical drag plate; 18, rotary table; 19, slide rail; 20, nut screw assembly; 20a, screw rod; 20b, nut seat. DETAILED DESCRIPTION

[0026] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0027] A vertical grinding machine, referring to Figures 1-8 , comprising a rack 1 with a crossbeam 1a, the rack 1 is provided with a horizontally rotatable workpiece positioning rotary table 2 at the front side of the crossbeam 1a, the rack 1 is provided with a tool magazine 3 at the transverse sides of the workpiece positioning rotary table 2, the rack 1 is further provided with a dressing seat 4 between the workpiece positioning rotary table 2 and the tool magazine 3, the dressing seat 4 is respectively fixed with a dressing dish 5 and a dressing pen 6 located above the dressing dish 5, the dressing seat 4 is vertically rotatably arranged on the rack 1, and when the dressing seat 4 is rotated downward to a flat state, the height of the dressing seat 4 is lower than the height of the workpiece positioning rotary table 2, the workpiece positioning rotary table 2 is movably arranged on the rack 1, and the crossbeam 1a is connected with two inner hole grinding head assemblies 7 and outer circle grinding head assemblies 8 which can slide up and down and left and right respectively.

[0028] The dressing pen 6 and the dressing dish 5 are preferably made of diamond, the dressing pen 6 and the dressing dish 5 made of diamond have very high wear resistance, high dressing efficiency and long service life.

[0029] Referring to Figure 1 , a pair of slide rails are fixed on the horizontal drag plate 3 along the vertical direction, and a nut screw assembly is connected to the horizontal drag plate 3 between the two slide rails along the vertical direction, the vertical drag plate 4 is slidably connected to the slide rails through a sliding block, and the vertical drag plate 4 is connected to the nut seat of the nut screw assembly, so as to realize the up and down movement of the vertical drag plate 4; similarly, a pair of slide rails are fixed on the rack 1 along the front and back directions, a sliding seat is slidably connected to the slide rails, and a nut screw assembly is further arranged between the two slide rails on the rack 1, the workpiece positioning rotary table 2 is horizontally rotatably arranged on the sliding seat, and the nut seat of the nut screw assembly is connected to the sliding seat, so as to realize the front and back movement of the workpiece positioning rotary table 2.

[0030] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 and, specifically, the trimming base 4 includes a block-shaped base 4a and an extension frame 4b in a "U" shape that is vertically connected to the base 4a. The sand trimming disc 5 is arranged on the base 4a, the sand trimming pen 6 is arranged on the extension frame 4b, a cylinder 9 is installed on the machine frame 1, the base 4a is connected to a rotating shaft 10, the end of the rotating shaft 10 is connected to a crank block 11, the output shaft of the cylinder 9 is horizontally perpendicular to the rotating shaft 10 and the output shaft of the cylinder 9 is hinged to the crank block 11.

[0031] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 and, further, a sand trimming pen base 12 is detachably fixed on the extension frame 4b by bolts, the sand trimming pen 6 is fixedly arranged on the sand trimming pen base 12, a mounting shaft 13 is connected to the base 4a, and the sand trimming disc 5 is in a frustum shape and is detachably sleeved and fixed on the mounting shaft 13.

[0032] In this embodiment, it is preferred that a plurality of first coolant spray pipes 14 and a plurality of second coolant spray pipes 15 are respectively arranged on the base 4a. The liquid outlet of the first coolant spray pipe 14 is arranged towards the sand trimming pen 6, and the liquid outlet of the second coolant spray pipe 15 is arranged towards the sand trimming disc 5; it is preferred that there are at least three sand trimming pens 6, and one of the sand trimming pens 6 is arranged horizontally, and the other two sand trimming pens 6 are respectively located on the upper and lower sides of this sand trimming pen 6 and are both arranged vertically. The end of the sand trimming pen 6 is in a frustum shape and has a conical trimming tip 6a on its end face.

[0033] Refer to Figure 1 and, specifically, two horizontally arranged cross sliders 16 are slidably connected to the cross beam 1a of the machine frame 1. A vertical slider 17 is vertically slidably connected to each cross slider 16. The internal hole grinding head assembly 7 is connected to one of the vertical sliders 17, and a rotatable rotating table 18 is connected to the other vertical slider 17. The external cylindrical grinding head assembly 8 is connected to the rotating table 18.

[0034] Refer to Figure 1 and Figure 5More specifically, the cross beam 1a of the rack 1 is provided with slide rails 19 and two nut screw rod assemblies 20 at intervals in the up-down direction, the nut screw rod assembly 20 comprises a screw rod 20a and a nut seat 20b screwed on the screw rod 20a, the slide rails 19 and the screw rods 20a are fixed on the rack 1 in the left-right direction, two cross plates 16 are slidingly arranged on the slide rails 19 in left-right parallel, and two nut seats 20b are connected with two cross plates 16 respectively.

[0035] With reference to Figure 1 and Figure 5 Further, the slide rails 19 are three, the upper, middle and lower parts of the cross plate 16 are connected with the three slide rails 19 through slide blocks respectively, the slide rails 19 and the screw rods 20a are arranged at intervals in the up-down direction, the rack 1 is provided with recessed installation grooves 1b at the positions between two slide rails 19, two nut screw rod assemblies 20 are arranged in the installation grooves 1b respectively, and the screw rods 20a of the two nut screw rod assemblies 20 are parallel and arranged in the up-down direction.

[0036] With reference to Figure 1 and Figure 8 Specifically, the tool magazine 3 comprises a mounting seat 3a and a support turntable 3b rotatably arranged on the mounting seat 3a, a plurality of elastic clamping claws 3c are arranged on the edge of the support turntable 3b in the circumferential direction, and a spare inner hole grinding head and a spare outer circle grinding head are clamped on the plurality of elastic clamping claws 3c respectively.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A vertical grinding machine comprising a machine frame (1) with a crossbeam (1a), said machine frame (1) being provided with a horizontally rotatable workpiece positioning turntable (2) at the front side of the crossbeam (1a), characterized in that, The rack (1) is provided with a tool magazine (3) on both sides of the workpiece positioning turntable (2), and is also provided with a dressing seat (4) between the workpiece positioning turntable (2) and the tool magazine (3), the dressing seat (4) is fixed with a dressing disc (5) and a dressing pen (6) above the dressing disc (5) respectively, the dressing seat (4) is vertically rotatably arranged on the rack (1), and when the dressing seat (4) is rotated downward to a flat state, the height of the dressing seat (4) is lower than the height of the workpiece positioning turntable (2), and the cross beam (1a) is connected with two inner hole grinding head assemblies (7) and outer circle grinding head assemblies (8) which are arranged side by side and can slide up and down.

2. A vertical grinding machine according to claim 1, characterized in that The dressing seat (4) comprises a block-shaped base (4a) and an extension frame (4b) which is vertically connected to the base (4a) and has a shape of a Chinese character'', the dressing disc (5) is arranged on the base (4a), the dressing pen (6) is arranged on the extension frame (4b), a cylinder (9) is installed on the rack (1), the base (4a) is connected with a rotating shaft (10), the end of the rotating shaft (10) is connected with a crank block (11), the output shaft of the cylinder (9) is transversely perpendicular to the rotating shaft (10), and the output shaft of the cylinder (9) is hinged to the crank block (11).

3. A vertical grinding machine according to claim 2, wherein The extension frame (4b) is detachably fixed with a dressing pen seat (12) through bolts, the dressing pen (6) is fixed on the dressing pen seat (12), the base (4a) is connected with a mounting shaft (13), and the dressing disc (5) is circular and detachably sleeved on the mounting shaft (13).

4. A vertical grinding machine according to claim 2, wherein The base (4a) is provided with a plurality of first cooling liquid spray pipes (14) and a plurality of second cooling liquid spray pipes (15) respectively, the outlet of the first cooling liquid spray pipe (14) is arranged towards the dressing pen (6), and the outlet of the second cooling liquid spray pipe (15) is arranged towards the dressing disc (5).

5. A vertical grinding machine according to claim 1, wherein The dressing pen (6) has at least three, one of which is horizontally arranged, and the other two are vertically arranged on the upper and lower sides of the dressing pen (6), the end of the dressing pen (6) is circular and has a conical dressing tip (6a) on the end face.

6. A vertical grinding machine according to claim 1 or 2 or 3 or 4 or 5, characterized in that, The workpiece positioning turntable (2) is movably arranged on the rack (1), the cross beam (1a) of the rack (1) is slidably connected with two transversely arranged cross sliding plates (16), each of the cross sliding plates (16) is vertically slidably connected with a vertical sliding plate (17), the inner hole grinding head assembly (7) is connected to one of the vertical sliding plates (17), and the other vertical sliding plate (17) is connected with a rotatable rotating table (18), and the outer circle grinding head assembly (8) is connected to the rotating table (18).

7. A vertical grinding machine according to claim 6, characterised in that The beam (1a) of the rack (1) is provided with slide rails (19) and two nut screw rod assemblies (20) at intervals in the up-down direction, the nut screw rod assembly (20) comprises a screw rod (20a) and a nut seat (20b) screwed on the screw rod (20a), the slide rails (19) and the screw rod (20a) are fixed on the rack (1) in the left-right direction, the two horizontal drag plates (16) are slidably arranged on the slide rails (19) in the left-right direction, and the two nut seats (20b) are connected with the two horizontal drag plates (16) respectively.

8. A vertical grinding machine according to claim 7, characterised in that, The slide rails (19) are three, the upper part, the middle part and the lower part of the horizontal drag plate (16) are connected with the three slide rails (19) through slide blocks respectively, the slide rails (19) and the screw rod (20a) are arranged at intervals in the up-down direction, the rack (1) is provided with recessed mounting grooves (1b) at the positions between the two slide rails (19), the two nut screw rod assemblies (20) are arranged in the mounting grooves (1b) respectively, and the screw rods (20a) of the two nut screw rod assemblies (20) are parallel to each other and arranged in the up-down direction.

9. A vertical grinding machine according to claim 1 or 2 or 3 or 4 or 5, characterized in that, The tool magazine (3) comprises a mounting seat (3a) and a support turntable (3b) rotatably arranged on the mounting seat (3a), a plurality of elastic clamping claws (3c) are arranged on the edge of the support turntable (3b) in the circumferential direction, and a spare inner hole grinding head and a spare outer circle grinding head are clamped on the plurality of elastic clamping claws (3c) respectively.

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