CN211163193U - Surface grinding machine - Google Patents

Abstract

The utility model discloses a surface grinder, include: the frame is provided with a working platform with an operation through hole and a bearing platform; the workpiece bearing device comprises a base, a rotary table, a first hydraulic cylinder and a workpiece bearing platform, wherein the bearing platform is also provided with a turnover assembly, the base is provided with a rotary driving assembly, and the workpiece bearing platform can upwards penetrate through the operation through hole; the workpiece clamping devices are arranged on the working platform in an annular array, and each workpiece clamping device comprises an air cylinder, a mounting plate, a flexible clamping block and a plurality of elastic components; the functional output end of the first three-dimensional moving device is provided with a grinding wheel component; and a controller. The technical scheme can conveniently and reliably execute the grinding action on the workpiece, has higher automation degree, and can greatly reduce the workload of operators.

Description

Surface grinding machine

Technical Field

The utility model relates to a grinding machine technical field especially relates to a flat grinder.

Background

A surface grinder is a machine tool often used in the machining production of workpieces, and the main operation is to fix the workpiece and grind the surface of the workpiece by a grinder. At present, the workpiece is generally fixed on a machine tool operation platform through various clamps, the position control of a grinding machine is generally only longitudinally adjustable, and in practical use, the workpiece is easily damaged in the process of clamping the workpiece, the alignment operation of the workpiece is extremely inconvenient, and the operation burden of workers is large.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, a flat grinder with high automation degree and capable of greatly reducing the workload of operators is provided to overcome the technical defects.

The specific technical scheme is as follows:

a surface grinding machine comprising:

the device comprises a rack, a lifting mechanism and a lifting mechanism, wherein a horizontal working platform and a bearing platform located right below the working platform are arranged on the rack, and an operation through hole is longitudinally formed in the working platform in a penetrating manner;

the workpiece bearing device comprises a base, a rotary table, a first hydraulic cylinder, a workpiece bearing table and a turnover assembly, wherein one end of the base is hinged to the bearing platform and can turn around the hinged end, the rotary table is rotatably installed on the base, the first hydraulic cylinder is erected on the rotary table, the head end of the piston rod is upward, the workpiece bearing table is horizontally installed at the head end of the piston rod of the first hydraulic cylinder and used for placing a workpiece, the bearing platform is further provided with the turnover assembly used for driving the base to turn over, the base is provided with a rotary driving assembly used for driving the rotary table to rotate, and the workpiece bearing table can upwards penetrate;

the flexible clamping blocks are connected to one side, away from the air cylinder, of the mounting plate through a plurality of elastic components and face the working through hole so as to clamp a workpiece on the workpiece bearing table under the driving of the air cylinder;

the first three-dimensional moving device is arranged on the working platform, the functional output end of the first three-dimensional moving device can move in three dimensions relative to the working platform, and the functional output end of the first three-dimensional moving device is provided with a grinding wheel assembly;

the controller is arranged on the bearing platform, and the workpiece clamping device, the two three-dimensional moving devices, the pump body, the first hydraulic cylinder, the overturning assembly and the rotary driving assembly are respectively and electrically connected to the controller.

Preferably, the first three-dimensional moving device and the second three-dimensional moving device both comprise a cross sliding table arranged on the working platform, a longitudinal sliding seat longitudinally connected to the output end of the cross sliding table, a sliding block capable of longitudinally sliding relative to the longitudinal sliding seat, and a first linear motor arranged at the upper end of the longitudinal sliding seat and outputting an output shaft to the sliding block.

Preferably, the surface grinder further includes:

the second three-dimensional moving device is arranged on the working platform, the functional output end of the second three-dimensional moving device can move in three dimensions relative to the working platform, and the functional output end of the second three-dimensional moving device is provided with a cooling liquid spray pipe;

the cooling liquid backflow assembly comprises a cooling liquid collecting box arranged on a bearing platform, wherein the inside of the cooling liquid collecting box is divided into an upper cavity and a lower cavity which are arranged up and down by a flat plate with a filter hole, the upper cavity is divided into a left cavity and a right cavity by a partition plate, a first through hole communicated with the right cavity and a second through hole communicated with the left cavity are formed in an upper cover of the cooling liquid collecting box, a magnet is arranged in the lower cavity and is positioned right below the right cavity, a pump body is arranged in the left cavity, a liquid flow hole is formed in a workpiece bearing platform in a penetrating mode and is communicated with the right cavity through a first hose penetrating through the first through hole, and a cooling liquid spray pipe is connected to a liquid outlet end of the pump body through a second hose penetrating through the second through hole;

preferably, the grinding wheel assembly comprises a mounting base fixedly mounted on the functional output end of the first three-dimensional moving device, a grinding wheel rotatably assembled at the lower end of the mounting base, and a motor horizontally and fixedly mounted on the mounting base and used for driving the grinding wheel to rotate.

Preferably, one end of the base is pivotally connected to the bearing platform, an inclined plane is formed by cutting the lower end face of the other end of the base, the overturning assembly comprises a second hydraulic cylinder horizontally arranged on the bearing platform and a wedge block connected to the piston head end of the second hydraulic cylinder, and the slope of the upper end face of the wedge block is abutted to the inclined plane of the base.

Preferably, the rotary driving assembly comprises a second motor longitudinally installed on the base, the rotary table is rotatably installed in a circular concave cavity formed by the concave upper end face of the base through a connecting shaft, gear teeth are arranged on the periphery of the rotary table, and a gear meshed with the gear teeth on the periphery of the rotary table is sleeved on a motor shaft of the second motor extending into the base.

Preferably, a plurality of balls capable of freely rolling are embedded in the circular concave cavity, and the balls are abutted to the lower end face of the turntable.

Preferably, the outer edge of the upper end surface of the workpiece bearing table is upwards protruded to form an annular edge.

Preferably, the workpiece bearing table is integrally disc-shaped and made of metal material, and a coil is wound around the periphery of the workpiece bearing table and electrically connected to the controller.

Preferably, the lower end surface of the workpiece bearing table is provided with an insulating layer, and the head end of the piston rod of the first hydraulic cylinder is connected to the insulating layer.

Preferably, the elastic member is a spring.

The beneficial effects of the above technical scheme are that:

the surface grinding machine comprises a frame, a workpiece bearing device, a workpiece clamping device, two three-dimensional moving devices and a cooling liquid backflow assembly, so that grinding actions on workpieces can be conveniently and reliably executed, the automation degree is high, and the workload of operators can be greatly reduced.

Drawings

FIG. 1 is a perspective view of the surface grinder of the present invention;

FIG. 2 is a perspective view of the flat grinder of the present invention from another viewing angle;

FIG. 3 is a front view of the surface grinder of the present invention;

fig. 4 is a top view of the surface grinding machine of the present invention;

fig. 5 is a perspective view of the workpiece supporting device 2 in the surface grinding machine of the present invention;

fig. 6 is a schematic cross-sectional view of the workpiece carrier 2 of the surface grinding machine of the present invention;

fig. 7 is a perspective view of a part of the workpiece clamping device 4 of the surface grinding machine according to the present invention;

fig. 8 is a perspective view of the cooling liquid reflux assembly in the flat grinder of the present invention;

fig. 9 is a sectional view of the coolant collection box 3 of the surface grinding machine of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated in conjunction with the accompanying drawings.

Referring to fig. 1 to 9, the present invention provides a surface grinder including:

the device comprises a rack 1, wherein a horizontal working platform 11 and a bearing platform 12 positioned right below the working platform 11 are arranged on the rack 1, and an operation through hole is longitudinally formed in the working platform 11 in a penetrating manner;

the workpiece bearing device 2 comprises a base 21, a rotary table 22, a first hydraulic cylinder 23 and a workpiece bearing table 24, wherein one end of the base 21 is hinged to the bearing platform 12 and can turn around the hinged end, the rotary table 22 is rotatably installed on the base 21, the first hydraulic cylinder 23 is erected on the rotary table 22, the head end of a piston rod of the first hydraulic cylinder 23 faces upwards, the workpiece bearing table 24 is horizontally installed at the head end of the piston rod of the first hydraulic cylinder 23 and used for placing a workpiece, a turning assembly used for driving the base 21 to turn is further installed on the bearing platform 12, a rotary driving assembly used for driving the rotary table 22 to rotate is installed on the base 21, and the workpiece bearing table;

the plurality of workpiece clamping devices 4 are annularly and uniformly arranged on the working platform 11 in an array and are located at the periphery of the working through hole, each workpiece clamping device 4 comprises a cylinder 41, a mounting plate 42 connected to the head end of the piston rod of the cylinder 41 and a flexible clamping block 44, the flexible clamping block 44 is connected to one side, away from the cylinder 41, of the mounting plate 42 through a plurality of elastic members 43, and the flexible clamping block 44 faces the working through hole and is used for clamping a workpiece on the workpiece bearing table 24 under the driving of the cylinder 41; in the present embodiment, the number of the work gripping devices 4 is four, but not limited thereto.

The first three-dimensional moving device 5 is mounted on the working platform 11, the functional output end of the first three-dimensional moving device can move in three dimensions relative to the working platform 11, and specifically comprises movement in the up-down direction, the left-right direction and the front-back direction, and the grinding wheel assembly 7 is mounted at the functional output end of the first three-dimensional moving device 5 and used for changing the machining position of a workpiece under the action of the first three-dimensional moving device 5;

the second three-dimensional moving device 6 is arranged on the working platform 11, the functional output end of the second three-dimensional moving device can move in three dimensions relative to the working platform 11, the movement in the vertical direction, the horizontal direction and the front-back direction is included, and the cooling liquid spray pipe 8 is arranged at the functional output end of the second three-dimensional moving device 6 and used for changing the liquid spraying position of the workpiece under the action of the second three-dimensional moving device 6;

the cooling liquid reflux assembly comprises a cooling liquid collecting box 3 arranged on a bearing platform 12, the interior of the cooling liquid collecting box 3 is divided into an upper cavity body and a lower cavity body 31 which are arranged up and down by a flat plate 34 with filtering holes, the upper cavity is divided into a left cavity 32 and a right cavity 33 by a partition plate 35, a first through hole 39 communicated with the right cavity 33 and a second through hole 38 communicated with the left cavity 32 are arranged on the upper cover of the cooling liquid collecting box 3, a magnet 36 is arranged in the lower cavity 31 at the position right below the right cavity 33, a pump body 37 is arranged in the left cavity 32, a liquid flow hole 241 is arranged on the workpiece bearing platform 24 in a penetrating way, the liquid flow hole 241 is communicated to the right cavity 33 through a first hose (not shown) passing through the first through hole 39, and the cooling liquid spray pipe 8 is connected to the liquid outlet end of the pump body 37 through a second hose (not shown) passing through the second through hole 38;

a controller (not shown in the figure) installed on the carrying platform 12, wherein the workpiece clamping device 4, the two three-dimensional moving devices, the pump body 37, the first hydraulic cylinder 23, the turning assembly and the rotation driving assembly are respectively electrically connected to the controller, specifically, the electric machine devices can be directly connected to the controller through wires, and the air cylinder hydraulic cylinder devices are electrically connected to the controller through valve actuators, which is a conventional connection manner in the field, and therefore, the details are omitted here.

In a specific application, a workpiece is firstly placed on a workpiece bearing table 24, the workpiece bearing table 24 adjusts the workpiece to a proper position through a first hydraulic cylinder 23 and a rotary driving assembly, then a workpiece clamping device 4 operates and is tightly attached to the outer edge of the workpiece through a flexible clamping block 44, so as to avoid the problem of damaging the workpiece, after clamping, a grinding wheel assembly 7 operates and is driven by a first three-dimensional moving device 5 to perform flat grinding on the workpiece, and the position can be adjusted timely, meanwhile, a cooling liquid nozzle 8 is also moved to a proper position under the driving of a second three-dimensional moving device 6 so as to perform liquid spraying cooling on a machining surface, so as to prevent the workpiece from generating sparks due to overheating or damaging the surface strength of the workpiece, simultaneously, cooling liquid mixed with scrap iron flows into a right cavity 33 in a cooling liquid collecting box 3 through a liquid pipe 241 and a first hose, the scrap iron therein is adsorbed by a magnet 36, the cooling liquid overflows into a left cavity 32, returns to the cooling liquid nozzle 8 through a second hose under the action of a pump body 37, obviously, and is controlled to fall into a working position of a working liquid nozzle 358 through a working basket 23, and is controlled by a working personnel operating a controller (preferably a P L C) on a controller, and is also can be operated by a workpiece bearing table, and is controlled to perform a full-tilting operation of the workpiece bearing table 24, and the workpiece bearing table 24, and is controlled by a workpiece bearing table after the whole work station, so that the workpiece is completely tilting operation of the workpiece is performed by a working station, so that the workpiece bearing table 24, and the workpiece is performed by a working station, and the workpiece is controlled by a working station after the workpiece is completely tilting operation.

Based on the technical scheme, the surface grinding machine comprises a frame 1, a workpiece bearing device 2, a workpiece clamping device 4, two three-dimensional moving devices and a cooling liquid backflow assembly, so that grinding actions on workpieces can be conveniently and reliably executed, the automation degree is high, and the workload of operators can be greatly reduced.

In a preferred embodiment, each of the first three-dimensional moving device 5 and the second three-dimensional moving device 6 includes a cross slide table 51 mounted on the work platform 11, a longitudinal slide seat 52 longitudinally connected to an output end of the cross slide table 51, a slide block 53 longitudinally slidable with respect to the longitudinal slide seat 52, and a first linear motor 54 mounted on an upper end of the longitudinal slide seat 52 and outputting the slide block 53. Specifically, the two horizontal motors on the cross sliding table 51 can control the longitudinal sliding seat 52 to move back and forth and left and right in the plane direction, and the precision is high (the cross sliding table 51 is a conventional device, and high-precision linear movement is mainly realized by a screw and a motor, which is omitted for further description), while the sliding block 53 is mounted on the longitudinal sliding seat 52 in a longitudinally slidable manner through a rail groove structure, and the first linear motor 54 realizes the vertical movement thereof, and one end of the sliding block 53 away from the longitudinal sliding seat 52 serves as the functional output end. Further, the grinding wheel assembly 7 includes a mounting base 71 fixedly mounted on the functional output end of the first three-dimensional moving device 5, a grinding wheel 72 rotatably mounted at the lower end of the mounting base 71, and a motor horizontally and fixedly mounted on the mounting base 71 and used for driving the grinding wheel 72 to rotate, specifically, the mounting structure of the grinding wheel 72 and the mounting base 71 is the same as that of a common hand wheel type grinding machine in the current market, and is more conventional, so that the description thereof is omitted. Likewise, a cooling liquid spray pipe 8 is arranged at the functional output end of the second three-dimensional moving device 6,

in a preferred embodiment, as shown in fig. 5 and 6, one end of the base 21 is pivotally connected to the supporting platform 12 for the purpose of hinge joint, and the lower end surface of the other end is cut to form an inclined surface, the tilting assembly includes a second hydraulic cylinder 26 horizontally mounted on the supporting platform 12, a wedge 27 connected to the piston end of the second hydraulic cylinder 26, and the inclined surface of the upper end surface of the wedge 27 abuts against the inclined surface of the base 21, so that the base 21 is forced to tilt around the hinge joint end by the inclined surface penetrating into the inclined surface under the pushing of the second hydraulic cylinder 26, and the workpiece falls from the workpiece supporting platform 24 under the action of its own gravity after tilting.

As a further preferred embodiment, the rotary driving assembly includes a second motor 28 longitudinally installed on the base 21, the rotary table 22 is rotatably installed in a circular cavity formed by the concave upper end surface of the base 21 through a connecting shaft, the outer periphery of the rotary table 22 has gear teeth, and the motor shaft of the second motor 28 extending into the base 21 is sleeved with a gear 29 engaged with the gear teeth on the outer periphery of the rotary table 22 to drive the rotary table 22 to rotate. Further, a plurality of balls capable of freely rolling are embedded in the circular concave cavity, and the balls are abutted against the lower end face of the rotating disc 22 to assist the rotation of the rotating disc. It is apparent that the base 21 has a cavity therein for receiving the gear 29. Furthermore, the outer edge of the upper end face of the workpiece bearing table 24 is formed with an annular edge protruding upwards to prevent the cooling liquid from flowing outwards, and the height of the annular edge is not large, so that the action of the workpiece falling off after the workpiece bearing table 24 is inclined cannot be influenced. Further, the workpiece carrier 24 is integrally disc-shaped and made of metal material, and the coil 25 is wound around the outer circumference, the coil 25 is electrically connected to the controller, so that the workpiece carrier 24 has magnetism for adsorbing the workpiece after the coil 25 is powered on, and can be started during the rotation of the turntable 22 to prevent the workpiece from being thrown out. Further, the lower end surface of the workpiece bearing table 24 is provided with an insulating layer, and the head end of the piston rod of the first hydraulic cylinder 23 is connected to the insulating layer.

In a preferred embodiment, the resilient member 43 is a spring, but could be a resilient member such as a plastic post, the flexible clamping block 44 is made of rubber to avoid damage to the edge of the workpiece, in this embodiment, the P L C controller is a mini P L C from Mitsubishi F1 series, but is not limited thereto.

The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A surface grinding machine, comprising:

the device comprises a rack (1), wherein a horizontal working platform (11) and a bearing platform (12) located right below the working platform (11) are arranged on the rack (1), and an operation through hole is formed in the working platform (11) in a longitudinally penetrating mode;

the workpiece bearing device (2) comprises a base (21) with one end hinged to the bearing platform (12) and capable of overturning around a hinged end, a rotary table (22) rotatably mounted on the base (21), a first hydraulic cylinder (23) which is erected on the rotary table (22) and with the head end of a piston rod upward, and a workpiece bearing table (24) which is horizontally mounted at the head end of the piston rod of the first hydraulic cylinder (23) and used for placing a workpiece, wherein an overturning assembly used for driving the base (21) to overturn is further mounted on the bearing platform (12), a rotary driving assembly used for driving the rotary table (22) to rotate is mounted on the base (21), and the workpiece bearing table (24) can upwards penetrate through the operation through hole under the driving of the first hydraulic cylinder (23);

the workpiece clamping devices (4) are arranged on the working platform (11) in an annular uniform array and located at the periphery of the working through hole, each workpiece clamping device (4) comprises a cylinder (41), a mounting plate (42) connected to the head end of a piston rod of the cylinder (41) and a flexible clamping block (44), the flexible clamping block (44) is connected to one side, away from the cylinder (41), of the mounting plate (42) through a plurality of elastic members (43), and the flexible clamping block (44) faces the working through hole and is used for clamping a workpiece on the workpiece bearing table (24) under the driving of the cylinder (41);

the first three-dimensional moving device (5) is arranged on the working platform (11), the functional output end of the first three-dimensional moving device can move in three dimensions relative to the working platform (11), and a grinding wheel assembly (7) is arranged at the functional output end of the first three-dimensional moving device (5);

the controller is installed on the bearing platform (12), and the workpiece clamping device (4), the first three-dimensional moving device, the first hydraulic cylinder (23), the overturning assembly and the rotary driving assembly are respectively and electrically connected to the controller.

2. The surface grinding machine of claim 1, further comprising:

the second three-dimensional moving device (6) is arranged on the working platform (11), the functional output end of the second three-dimensional moving device can move in three dimensions relative to the working platform (11), and the cooling liquid spray pipe (8) is arranged at the functional output end of the second three-dimensional moving device (6);

the cooling liquid backflow assembly comprises a cooling liquid collecting box (3) arranged on the bearing platform (12), the cooling liquid collecting box (3) is internally divided into an upper cavity and a lower cavity (31) which are arranged up and down by a flat plate (34) with a filter hole, the upper cavity is divided into a left cavity (32) and a right cavity (33) by a partition plate (35), a first through hole (39) communicated with the right cavity (33) and a second through hole (38) communicated with the left cavity (32) are formed in an upper cover of the cooling liquid collecting box (3), a magnet (36) is arranged in the lower cavity (31) and is positioned right below the right cavity (33), a pump body (37) is arranged in the left cavity (32), a liquid flow hole (241) penetrates through the workpiece bearing platform (24), and the liquid flow hole (241) is communicated with the right cavity (33) through a first hose penetrating through the first through hole (39), the cooling liquid spray pipe (8) is connected to the liquid outlet end of the pump body (37) through a second hose penetrating through the second through hole (38).

3. The surface grinding machine as claimed in claim 2, characterized in that the first three-dimensional moving device (5) and the second three-dimensional moving device (6) each comprise a cross slide table (51) mounted on the work platform (11), a longitudinal slide base (52) longitudinally connected to an output end of the cross slide table (51), a slide block (53) longitudinally slidable relative to the longitudinal slide base (52), and a first linear motor (54) mounted on an upper end of the longitudinal slide base (52) and having an output shaft connected with the slide block (53).

4. A surface grinding machine as claimed in claim 3, characterized in that said grinding wheel unit (7) comprises a mounting base (71) fixed to the functional output of said first three-dimensional moving device (5), a grinding wheel (72) rotatably mounted to the lower end of said mounting base (71), and a motor horizontally fixed to said mounting base (71) and driving said grinding wheel (72) to rotate.

5. The surface grinder of claim 4, characterized in that one end of the base (21) is pivotally connected to the carrying platform (12), and the lower end surface of the other end is cut to form an inclined surface, the turning assembly comprises a second hydraulic cylinder (26) horizontally mounted on the carrying platform (12), and a wedge block (27) connected to the piston head end of the second hydraulic cylinder (26), and the inclined surface of the upper end surface of the wedge block (27) is abutted against the inclined surface of the base (21).

6. The surface grinder as claimed in claim 5, characterised in that the rotary drive assembly comprises a second motor (28) mounted longitudinally on the base (21), the turntable (22) is rotatably mounted in a circular cavity formed by the recess of the upper end surface of the base (21) through a connecting shaft, the periphery of the turntable (22) is provided with gear teeth, and a motor shaft of the second motor (28) extending into the base (21) is sleeved with a gear (29) engaged with the gear teeth on the periphery of the turntable (22).

7. A surface grinding machine as claimed in claim 6, characterised in that a plurality of freely rolling balls are fitted in the circular cavity and abut against the lower end face of the turntable (22).

8. A surface grinding machine as claimed in claim 7, characterised in that the outer edge of the upper end face of the workpiece carrier table (24) is formed with an annular edge which is raised upwards.

9. The surface grinding machine of claim 8, characterized in that the workpiece carrier table (24) is generally disk-shaped and made of a metal material, and is provided with a coil (25) around its outer circumference, the coil (25) being electrically connected to the controller.

10. The surface grinding machine as claimed in claim 9, characterized in that the lower end face of the workpiece carrier table (24) has an insulating layer and the head end of the piston rod of the first hydraulic cylinder (23) is connected to the insulating layer.

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