Vertical automatic grinding machine

Abstract

The utility model discloses a vertical type automatic grinding machine which comprises a machine body seat which comprises a front machine body seat and a rear machine body seat, and the front machine body seat and the rear machine body seat are arranged in a T shape. The workbench is arranged on the front lathe bed seat in a sliding manner; the grinding wheel assembly is arranged on the rear lathe bed seat; the first driving assembly drives the grinding wheel assembly to horizontally move; the second driving assembly drives the grinding wheel assembly to do lifting motion; the grinding wheel assembly comprises a frame, a lifting seat, a spindle, a motor and a grinding wheel, the motor drives the grinding wheel to move through the spindle and is vertically arranged on the lifting seat, linear guide rails are arranged on the two sides of the frame, the lifting seat is slidably arranged on the linear guide rails, and the first driving assembly is arranged on the side face of the frame and drives the frame to move horizontally. The second driving assembly is arranged at the top end of the frame and drives the lifting base to ascend and descend. The automatic grinding paste adding device is high in automation degree, reduces downtime, greatly improves working efficiency, does not need manual grinding paste adding, is safer and more reliable to operate, facilitates full automation of a machining assembly line, and is good in using effect.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machines, in particular to a vertical automatic grinding machine. Background Art

[0002] A grinding machine is a machine tool that uses grinding tools to grind the surface of workpieces. At present, there is an overcapacity phenomenon in the domestic surface grinding machine industry, mainly concentrated in industries such as molds, tool measuring instruments, machining, building materials ceramics, etc. Due to extensive imitation of products, most of the existing grinding machines have external machine tool structures, resulting in problems such as low machining accuracy, inability to meet the requirements of machining roughness, large volume of gantry guideway grinders, difficult manufacturing, complex control, and high prices.

[0003] On the other hand, with the development of high-tech and the upgrading of the industrial structure, in industries such as aerospace, precision hydraulic components, electronic products, cutting tools, and special-shaped cutting blades, the demand for professional high-precision CNC forming grinding machine products is increasing, but the existing grinding machine supply side is difficult to meet the demand. Moreover, grinding machines are highly specialized and have strong technical monopoly, and they are embargoed products internationally.

[0004] Therefore, developing high-end automatic grinding machines to replace imports and solving the structural imbalance in the supply side caused by overcapacity of domestic general machine tools and insufficient supply of high-end automatic machine tools is an urgent problem to be solved in the current grinding machine field. Summary of the Utility Model

[0005] In view of the deficiencies in the above problems, the utility model provides a vertical automatic grinding machine.

[0006] To achieve the above object, the utility model provides a vertical automatic grinding machine, including:

[0007] A bed base, the bed base includes a front bed base and a rear bed base, and the front bed base and the rear bed base are arranged in a T shape;

[0008] A workbench, the workbench is slidably arranged on the front bed base;

[0009] A grinding wheel assembly, the grinding wheel assembly is arranged on the rear bed base;

[0010] A first driving component, the first driving component is arranged on the rear bed base and drives the grinding wheel assembly to move horizontally;

[0011] A second driving component, the second driving component drives the grinding wheel assembly to move up and down;

[0012] Among them, the grinding wheel assembly includes a frame, a lifting seat, a main shaft, a motor, and a grinding wheel. The motor drives the grinding wheel to move through the main shaft, and the motor is vertically arranged on the lifting seat. Linear guides are provided on both sides of the frame, and the lifting seat is slidably arranged on the linear guides. The first driving component is arranged on the side of the frame and drives the frame to move horizontally. The second driving component is arranged at the top of the frame and drives the lifting seat to move up and down.

[0013] Preferably, the first driving component includes a first driver, a first screw, a first nut, and a fixing plate. The fixing plate includes a base plate connected to the side of the frame and a plurality of connecting plates spaced and parallelly arranged on one side of the base plate. Through holes are formed on the connecting plates. The first screw passes through the through holes. The first nut is sleeved on the first screw, and the first nut is a sleeve-type nut. One end of the first nut is arranged on the connecting plate, and the other end passes through the connecting plate so that when the first driver drives the first screw to rotate, the first nut synchronously drives the fixing plate to move.

[0014] Preferably, the first driving component includes linear slide rails symmetrically arranged on both sides of the frame. The linear slide rails are fixedly arranged on the rear bed base, and the bottom end of the fixing plate is slidably arranged on the linear slide rails.

[0015] Preferably, the second driving component includes a second driver, a second screw, and a second nut. The second driver is arranged at the top of the frame. The second screw passes through the frame and through the lifting seat. The second nut is sleeved on the second screw. The second nut is a sleeve-type nut, one end of which is fixedly arranged on the lifting seat, and the other end passes through the inside of the lifting seat.

[0016] Preferably, a U-shaped through groove is formed in the middle of the rear bed base. One end of the frame is located in the U-shaped through groove, and the bottom end of the frame is spaced from the bottom end of the U-shaped through groove.

[0017] Preferably, the grinding wheel assembly further includes a motor fixing bracket fixedly connected to the lifting seat. The motor fixing bracket has a U-shaped groove, and the motor is arranged in the U-shaped groove.

[0018] Preferably, rotation holes are formed on both symmetric sides of the motor fixing bracket. A pin shaft passes through the rotation holes so that the motor is rotatably connected to the motor fixing bracket.

[0019] Preferably, a bottom plate is fixedly connected to the bottom end of the lifting seat. A hole is formed on the bottom plate. The motor fixing bracket is located on the bottom plate, and the main shaft is connected to the grinding wheel through the hole.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] This utility model has a high degree of automation, reduces downtime, greatly improves work efficiency, eliminates the need for manual addition of grinding paste, is safer and more reliable in operation, helps to achieve full automation of the machining production line, and has good usage effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural diagram of the vertical automatic grinding machine of this utility model;

[0023] Figure 2 is a structural diagram of the parts on the rear bed base of the vertical automatic grinding machine of this utility model;

[0024] Figure 3 is a schematic structural diagram of the motor fixing bracket in the vertical automatic grinding machine of this utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the objectives, technical solutions and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are some but not all of the embodiments of this utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this utility model without creative efforts shall fall within the protection scope of this utility model.

[0026] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of this utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] The following will be a further detailed description of this utility model in conjunction with the attached Figures 1 - 3 drawings:

[0029] Referring to Figure 1 , the present utility model provides a vertical automatic grinding machine, comprising:

[0030] A bed base 1, which includes a front bed base 11 and a rear bed base 12, and the front bed base 11 and the rear bed base 12 are arranged in a T shape;

[0031] A workbench 3, which is slidably arranged on the front bed base 11;

[0032] Specifically, the workbench 3 can be driven by devices such as a hydraulic transmission rod, a pneumatic transmission rod, a motor 43 screw rod, a cylinder push rod, etc. to make the workbench 3 slide on the front bed base 11. Splash guards are provided on both left and right sides of the workbench 3.

[0033] A grinding wheel assembly 4, which is arranged on the rear bed base 12;

[0034] A first driving assembly 5, which is arranged on the rear bed base 12 and drives the grinding wheel assembly 4 to move horizontally;

[0035] A second driving assembly 6, which drives the grinding wheel assembly 4 to move up and down;

[0036] Referring to Figure 2 , the grinding wheel assembly includes a frame 46, a lifting seat 44, a main shaft 42, a motor 43 and a grinding wheel 41. The motor 43 drives the grinding wheel 41 to move through the main shaft 42, and the motor 43 is vertically arranged on the lifting seat 44. Linear guide rails 45 are provided on both sides of the frame 46, and the lifting seat 44 is slidably arranged on the linear guide rails 45. The first driving assembly 5 is arranged on the side of the frame 46 and drives the frame 46 to move horizontally, and the second driving assembly 6 is arranged on the top of the frame 46 and drives the lifting seat 44 to move up and down.

[0037] Specifically, the first driving assembly 5 includes a first driver 51, a first screw rod 52, a first nut 53 and a fixing plate 54. The fixing plate 54 includes a base plate 541 connected to the side of the frame and a plurality of connecting plates 542 arranged in parallel at intervals on one side of the base plate 541. Through holes are provided on the connecting plates 542. The first screw rod 52 passes through the through holes, and the first nut 53 is sleeved on the first screw rod 52 and the first nut 53 is a sleeve-type nut. One end of the first nut 53 is arranged on the connecting plate 542, and the other end passes through the connecting plate 542 so that when the first driver 51 drives the first screw rod 52 to rotate, the first nut 53 synchronously drives the fixing plate 54 to move.

[0038] In this embodiment, the first driver 51 is a motor, which is arranged on the rear bed base 12 through a motor base. The motor is connected to the first screw rod 52 through a coupling. The first screw rod 52 passes through a through hole. One end of the first nut 53 has a diameter larger than the diameter of the through hole, and the other end has a diameter smaller than the diameter of the through hole. Therefore, one end of the first nut 53 is connected to the connecting plate 542, and the other end passes through the through hole. When the first driver 51 drives the first screw rod 52 to rotate, the first nut 53 makes a linear motion on the first screw rod 52, and the first nut 53 synchronously drives the fixed plate 54 to move, and then the fixed plate 54 drives the frame to move.

[0039] Further, in order to reduce the friction when the frame 46 moves, linear slide rails 55 are provided on the rear bed base 12. The linear slide rails 55 are symmetrically arranged on both sides of the frame. A plurality of sliders on the linear slide rails 55 are connected to the fixed plate 54. In order to better connect the fixed plate 54 and the sliders, a bottom plate is provided at the bottom end of the fixed plate 54. The bottom plate is respectively connected to the bottom end of the connecting plate 542 and the bottom surface of the bottom plate is connected to the sliders.

[0040] In this embodiment, in order to limit the movement range of the frame 46, limit blocks are also provided on the rear bed base 12.

[0041] Continue to refer to Figure 2 , the second driving assembly includes a second driver 61, a second screw rod 62 and a second nut 63. The second driver 61 is arranged at the top end of the frame. The second screw rod 62 passes through the frame and extends into the lifting seat 44. The second nut 63 is sleeved on the second screw rod 62; the second nut 63 is a sleeve-type nut, one end of which is fixedly arranged on the lifting seat 44, and the other end extends into the lifting seat 44.

[0042] In this embodiment, in order for the lifting seat 44 to better cooperate and connect with the linear guide rail 45, a flat plate is provided at the rear end of the lifting seat. The flat plate is slidably connected to the slider on the linear guide rail 45. It is stationary under the action of only gravity and without other external forces, and will only slide when subjected to external forces other than gravity. In order to better push the lifting seat 44 to move, a part protrudes from the rear side of the flat plate into the interior of the frame 46 so that the second nut 63 can be better set on the flat plate.

[0043] Further, in order to reduce the overall height of the device, a U-shaped through groove is opened in the middle of the rear bed base 12. One end of the frame is located in the U-shaped through groove and there is a gap between the bottom end of the frame and the bottom end of the U-shaped through groove.

[0044] Refer to Figure 3The grinding wheel assembly 4 also includes a motor mounting bracket 47 fixedly connected to the lifting base 44. The motor mounting bracket 47 has a U-shaped groove, and the motor 43 is disposed within the U-shaped groove. Rotation holes 471 are symmetrically formed on both sides of the motor mounting bracket 47. A pin 472 passes through the rotation holes 471 to rotationally connect the motor 43 to the motor mounting bracket 47. The pin can be used to adjust the position of the motor 43 and the motor mounting bracket 47, that is, to synchronously adjust the angle of the grinding wheel 41.

[0045] Specifically, the bottom end of the lifting seat 44 is fixedly connected to a base plate with a hole on it. The motor fixing bracket 471 is located on the base plate and the spindle 42 is connected to the grinding wheel 41 through the hole. The bottom end of the motor fixing bracket is spaced apart from the top surface of the base plate, which makes it easier to adjust the angle of the grinding wheel 41. The adjustment angle is too small and a larger angle cannot be adjusted.

[0046] In this embodiment, an automatic reversing assembly is provided on the front bed base 11, and the automatic reversing assembly ensures that the reversing distance is accurate. The automatic reversing assembly includes a rack, a gear, a transmission shaft and an encoder. The rack is fixed to the workbench 3, the gear is meshed with the rack and the gear is sleeved on one end of the transmission shaft, and the other end of the transmission shaft is connected to the encoder, and the transmission shaft is fixed to the front bed base. Rack seats are provided at both ends of the rack, and the rack seats are respectively connected to the workbench 3. The automatic reversing assembly also includes proximity switches symmetrically arranged on both sides of the gear. The proximity switch is arranged on a block, the block is L-shaped, and one end of the block is connected to the proximity switch, and the other end is used to limit the moving distance of the rack seat.

[0047] Specifically, the gear is connected to the drive shaft via a coupling, while the rack moves with the worktable 3, driving the gear rotation. This, in turn, drives the encoder through the drive shaft and the coupling, generating rotation pulses. The control system receives these pulses and counts the rack's travel distance, based on the center position. The control system pre-sets the travel distance. When the worktable 3 reaches the set distance (pulses), the control system issues a reversal signal, driving the control system to reverse direction. If an encoder or system failure causes the counting system to fail, the moving part overtravels and the rack holder moves above the proximity switch, which responds and issues a forced reversal or stop signal. When manually moving in a certain direction, the control system displays the distance but does not compare it with the set distance. When the worktable 3 reaches its limit and senses the proximity switch, an overtravel alarm is issued. Simultaneously, the side of the rack holder contacts the side of a block, forcibly blocking the worktable 3 and stopping it. Manual movement in the other direction releases the overtravel alarm. Switching back to automatic mode compares the set position, automatically returning the worktable 3 to its range of motion.

[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vertical automatic grinding machine, characterized in that, Comprising: A bed base, the bed base includes a front bed base and a rear bed base, and the front bed base and the rear bed base are arranged in a T shape; A workbench, the workbench is slidably arranged on the front bed base; A grinding wheel assembly, the grinding wheel assembly is arranged on the rear bed base; A first driving assembly, the first driving assembly is arranged on the rear bed base and drives the grinding wheel assembly to move horizontally; A second driving assembly, the second driving assembly drives the grinding wheel assembly to move up and down; Wherein, the grinding wheel assembly includes a frame, a lifting seat, a main shaft, a motor and a grinding wheel. The motor drives the grinding wheel to move through the main shaft, and the motor is vertically arranged on the lifting seat. Linear guide rails are arranged on both sides of the frame, and the lifting seat is slidably arranged on the linear guide rails. The first driving assembly is arranged on the side of the frame and drives the frame to move horizontally. The second driving assembly is arranged on the top of the frame and drives the lifting seat to move up and down.

2. The vertical automatic grinding machine according to claim 1, wherein, The first driving assembly includes a first driver, a first screw, a first nut and a fixing plate. The fixing plate includes a base plate connected to the side of the frame and a plurality of connecting plates arranged in parallel at intervals on one side of the base plate. Through holes are opened on the connecting plates, the first screw passes through the through holes, the first nut is sleeved on the first screw, and the first nut is a sleeve-type nut. One end of the first nut is arranged on the connecting plate, and the other end passes through the connecting plate so that when the first driver drives the first screw to rotate, the first nut synchronously drives the fixing plate to move.

3. The vertical automatic grinding machine according to claim 2, wherein, The first driving assembly includes linear slide rails symmetrically arranged on both sides of the frame, the linear slide rails are fixedly arranged on the rear bed base, and the bottom end of the fixing plate is slidably arranged on the linear slide rails.

4. The vertical automatic grinding machine according to claim 3, wherein, The second driving assembly includes a second driver, a second screw and a second nut. The second driver is arranged on the top of the frame, the second screw passes through the frame and passes through the lifting seat, and the second nut is sleeved on the second screw; the second nut is a sleeve-type nut, one end of which is fixedly arranged on the lifting seat, and the other end passes through the inside of the lifting seat.

5. The vertical automatic grinding machine according to claim 4, characterized in that A U-shaped through groove is opened in the middle of the rear bed base, one end of the frame is located in the U-shaped through groove, and the bottom end of the frame is spaced from the bottom end of the U-shaped through groove.

6. The vertical automatic grinding machine according to claim 1, wherein, The grinding wheel assembly further includes a motor fixing frame fixedly connected to the lifting seat. The motor fixing frame has a U-shaped groove, and the motor is arranged in the U-shaped groove.

7. The vertical automatic grinding machine according to claim 6, characterized in that, Rotating holes are opened on both symmetric sides of the motor fixing frame, and the motor is rotatably connected to the motor fixing frame through the rotating holes by a pin shaft.

8. The vertical automatic grinding machine according to claim 7, wherein, A bottom plate is fixedly connected to the bottom end of the lifting seat. A hole is opened on the bottom plate. The motor fixing frame is located on the bottom plate, and the main shaft is connected to the grinding wheel through the hole.

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