Automatic double-sided chamfering machine

Abstract

The utility model relates to the technical field of automatic equipment for cutting machining, in particular to an automatic double-sided chamfering machine which comprises a working table with a high table top and a low table top, a first chamfering device arranged on the high table top, a turnover frame arranged on the low table top and a second chamfering device with the same structure as the first chamfering device. The non-chamfered face of the machined part is turned upwards through the face turning frame, then chamfering is conducted through the second chamfering device, and double-face chamfering is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic equipment technical field of cutting processing, specifically related to a kind of automatic double chamfering machine. BACKGROUND

[0002] A kind of metal annular workpiece, in production and manufacturing process requirement, need to carry out chamfering to the inner and outer sides of the two side ports of the annular workpiece, there is the machining equipment that can chamfer the inner and outer sides of metal ring simultaneously, but when facing the processing needs of the workpiece product, manual sorting feeding is still needed, the workpiece of completion unit processing is turned over to realize chamfering to two ports, so that the efficiency is low in actual production, and yield is uncontrollable, and now plan to develop automatic equipment, the demand is to turn over the workpiece after single chamfering, and the automatic feeding and discharging control of workpiece. SUMMARY

[0003] The utility model discloses a kind of automatic double chamfering machines to the defects and deficiencies of prior art, by turnover frame, realize the machining piece of single chamfering is turned over 180 ° after chamfering another side, to realize the double chamfering machining of machining piece, and the device is highly integrated automation, using servo system and pneumatic stepping system, realize the controllable automatic processing of equipment.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] It contains workbench, the workbench is divided into a high table top and a low table top, the first chamfering device is equipped on the high table top, the turnover frame and the second chamfering device identical with the first chamfering device structure are equipped on the low table top, machining piece is chamfered by the first chamfering device, after being turned over by the turnover frame, the unchamfered side of machining piece is turned over upwards, and then chamfered by the second chamfering device, to complete double chamfering;

[0006] The first chamfering device includes chamfering drill on workbench through mounting frame, drive assembly for controlling the up-and-down movement of chamfering drill, conveying unit for conveying machining piece, clamping and pushing assembly for fixing machining piece, bearing table for bearing machining piece chamfering at the bottom of chamfering drill table and fixed on chamfering drill table mounting frame, and unloading push rod for pushing machining piece out of bearing table;The drive assembly includes servo motor and ball screw, which drives the downward movement of chamfering drill during chamfering, and drives the upward movement of chamfering drill table after chamfering is completed;The conveying unit includes conveyor belt, single-phase motor and machining piece position sensor, machining piece is conveyed to machining position by single-phase motor driving conveyor belt in succession, and single-phase motor stops working when the frontmost machining piece reaches the machining position sensed by the sensor.

[0007] The clamping and pushing assembly comprises a fixed clamping part arranged on the bearing table and a feeding push rod matched with the fixed clamping part to clamp the workpiece, and the feeding push rod pushes the workpiece from the conveying unit to the bearing table to clamp the workpiece with the fixed clamping part. After the workpiece is clamped by the clamping assembly, the driving assembly drives the chamfering turret to move downward to complete the chamfering operation.

[0008] The bearing table is provided with a discharging push rod on the side close to the conveying unit, and the pushing position of the discharging push rod avoids the fixed clamping part. After the chamfering operation of the chamfering turret is completed, the feeding push rod is withdrawn to release the workpiece, and the discharging push rod pushes the workpiece with completed chamfering to the turnover rack.

[0009] The upper surface of the conveying unit, the lower surface of the feeding push rod, the lower surface of the discharging push rod and the upper surface of the bearing table are flush or slightly higher, so that the workpiece can be smoothly pushed into the bearing table for processing and can be smoothly pushed out of the bearing table after processing.

[0010] Preferably, the turnover rack comprises a rotating wheel mounted on the workbench through a mounting frame and a turnover motor for controlling the rotation of the rotating wheel, the rotating wheel is provided with a plurality of concave transfer grooves arranged at equal angles around the rotating wheel shaft, and the rotating wheel is provided with baffles on both sides, the baffles are made of transparent material, and the workpiece can be observed.

[0011] The bearing table is provided with a discharging push rod on the side close to the conveying unit, and the pushing position of the discharging push rod avoids the fixed clamping part. After the chamfering operation of the chamfering turret is completed, the feeding push rod is withdrawn to release the workpiece, and the discharging push rod pushes the workpiece with completed chamfering to the turnover rack.

[0012] The turnover rack is provided with a feeding guide groove on the workbench close to the second chamfering device, and the feeding guide groove guides the workpiece with single chamfering from the transfer groove into the conveying unit of the second chamfering device.

[0013] After the workpiece with single chamfering enters the transfer groove, the rotating wheel rotates to bring the workpiece with single chamfering from the first chamfering device to the second chamfering device, and the workpiece with single chamfering is reversed by 180°.

[0014] Preferably, the workbench between the turnover rack and the first chamfering device is provided with a residue box for containing chamfering residues, the bottom of the discharging guide groove is provided with a plurality of residue filtering holes, the bottom of the residue filtering hole is provided with a residue guide pipe for guiding the residues into the residue box, and the chamfering residues carried out by the workpiece fall into the residue guide pipe through the residue filtering hole and are guided into the residue box by the residue guide pipe.

[0015] Since part of the residues will be carried into the transfer groove by the workpiece, the feeding guide groove is provided with a residue guide groove opposite to the second chamfering device, and the residue guide groove guides the residues in the transfer groove into the residue box.

[0016] Preferably, the mounting frame of the fixed rotating wheel is further provided with an arc-shaped baffle close to the rotating wheel to prevent the workpiece from sliding out of the rotating slot when the rotating slot rotates to the lower right direction.

[0017] Preferably, the inlet position of the blanking guide slot is provided with a movable baffle for buffering the impact force when the workpiece is blanked to prevent the workpiece from being pushed away by the blanking push rod.

[0018] Preferably, the rotating wheel and the turning motor of the turning frame are replaced by a receiving cylinder and a reciprocating air cylinder, the receiving cylinder is a box-shaped structure with one end open, the receiving cylinder is rotatably arranged on the mounting frame through a rotating shaft, the opposite surface of the receiving cylinder on the mounting frame is provided with the reciprocating air cylinder, the reciprocating air cylinder is in transmission connection with the rotating shaft of the receiving cylinder to drive the receiving cylinder to twist back and forth, so that the opening of the receiving cylinder reciprocates between the blanking guide slot and the feeding guide slot, the receiving cylinder is temporarily stopped from receiving the workpiece when it twists to the position of the blanking guide slot from above, and the workpiece is slid into the feeding guide slot when the receiving cylinder is temporarily stopped from receiving the workpiece by twisting to the position of the feeding guide slot from above, compared with the turning structure of the rotating wheel, the structure of the receiving cylinder is simpler, but only one workpiece can be turned over at a time due to the only one rotating slot, so the receiving cylinder can only be applied to relatively slow chamfering;

[0019] Preferably, the receiving cylinder body is provided with a plurality of residue filtering holes, and the opening of the receiving cylinder is widened.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] 1. The workpiece conveying unit, chamfering table drill, driving assembly, clamping and pushing assembly and blanking push rod are linked to realize chamfering of the workpiece, and the workpiece feeding and blanking are automatically realized.

[0022] 2. Two chamfering mechanisms are arranged, and a turning frame for turning the workpiece by 180 degrees is arranged between the two mechanisms, so that double-sided automatic chamfering of the workpiece is realized, the first chamfering device is arranged on the high table surface, the turning frame and the second chamfering device are arranged on the low table surface, so that the workpiece can move by gravity in part of the interval during the transfer of the machining area, and the setting of the conveying mechanism is reduced, and the structure of the double-sided chamfering machine is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic view of the main structure of the utility model.

[0024] Figure 2 It is a schematic view of the structure of the first chamfering device of the utility model.

[0025] Figure 3 It is a schematic view of the structure of the turning frame in the first embodiment of the utility model.

[0026] Figure 4It is the structure diagram of the turnover frame in the embodiment two of the utility model.

[0027] Mark explanation:

[0028] Workbench 1, first chamfer device 2, turnover frame 3, second chamfer device 4, chamfer table drill 21 drive assembly 22, conveying unit 23, clamping and pushing assembly 24, blanking push rod 25, bearing table 26,

[0029] Rotary wheel 31, turnover motor 32, switching groove 33, baffle 34, arc baffle 35, blanking guide groove 5, feeding guide groove 6, residue box 7, residue filter hole, residue guide pipe 8, residue guide groove 9, movable baffle 10, material receiving cylinder 36, reciprocating air cylinder 37. Specific embodiment

[0030] The technical scheme in the utility model will be described clearly and completely in conjunction with the drawings, and the preferred embodiment in the description is only as an example, and all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model. Embodiment one

[0031] As shown in Figures 1-3 The specific embodiment adopts the following technical scheme:

[0032] It comprises a workbench, the workbench is divided into a high table top and a low table top, the high table top is provided with a first chamfer device, the low table top is provided with a turnover frame and a second chamfer device which is the same in structure with the first chamfer device, after the machining part is chamfered by the first chamfer device, the face of the machining part which is not chamfered is turned over to face upwards by the turnover frame, and then the second chamfer device is used to chamfer, so that double-face chamfering is completed;

[0033] The first chamfer device comprises a chamfer table drill mounted on the workbench, a drive assembly for controlling the up-down movement of the chamfer table drill, a conveying unit for conveying the machining part, a clamping and pushing assembly for fixing the machining part, a bearing table located at the bottom of the chamfer drill table for bearing the machining part during chamfering, and a blanking push rod for pushing the machining part out of the bearing table; the drive assembly comprises a servo motor and a ball screw, the chamfer table drill is driven to move downwards during chamfering, and the chamfer drill table is driven to move upwards after chamfering is completed; the conveying unit comprises a conveyor belt, a single-phase motor and a machining part position sensor, the machining part is conveyed to the machining position by the single-phase motor in turn, and the single-phase motor stops working when the sensor senses that the machining part at the front end reaches the machining position;

[0034] The clamping and pushing assembly comprises a fixed clamping part arranged on the bearing table and a feeding push rod matched with the fixed clamping part to clamp the machining part, the feeding push rod pushes the machining part from the conveying unit to the bearing table to clamp the machining part with the fixed clamping part;

[0035] The side of the bearing table close to the conveying unit is provided with a blanking push rod aligned with the chamfering position of the workpiece, and the pushing part of the blanking push rod avoids the fixed clamping part. The blanking push rod pushes the workpiece with completed chamfering to the turnover frame.

[0036] The upper surface of the conveying unit, the lower surface of the feeding push rod, the lower surface of the blanking push rod, and the upper surface of the bearing table are flush or slightly higher.

[0037] The turnover frame includes a rotating wheel installed on the workbench through a mounting bracket and a turnover motor for controlling the rotation of the rotating wheel. The rotating wheel is provided with a plurality of concave transfer grooves distributed at equal angles around the rotating wheel shaft. The two sides of the rotating wheel are also provided with baffles made of transparent material for facilitating observation of the workpiece.

[0038] The side of the bearing table opposite to the blanking push rod is provided with a blanking guide groove inclined to the turnover frame. The blanking push rod pushes the single-side chamfered workpiece into the blanking guide groove. The blanking guide groove guides the single-side chamfered workpiece into the transfer groove of the turnover frame. The bottom of the transfer groove is provided with a protective impact pad for the workpiece.

[0039] The workbench on the side of the turnover frame close to the second chamfering device is provided with an inlet guide groove for guiding the single-side chamfered workpiece from the transfer groove into the conveying unit of the second chamfering device.

[0040] The workbench between the turnover frame and the first chamfering device is provided with a residue box for containing chamfering residues. The bottom of the blanking guide groove is provided with a plurality of residue filtering holes. The bottom of the residue filtering holes is provided with a residue guide pipe for guiding the residues into the residue box. The chamfering residues carried out by the workpiece fall into the residue guide pipe through the residue filtering holes and are guided into the residue box by the residue guide pipe.

[0041] Since part of the residues may be carried into the transfer groove by the workpiece, the side of the inlet guide groove opposite to the second chamfering device is also provided with a residue guide groove for guiding the residues in the transfer groove into the residue box.

[0042] The mounting bracket for fixing the rotating wheel is also provided with an arc-shaped baffle close to the rotating wheel to prevent the workpiece from sliding out of the transfer groove in advance when the transfer groove rotates to the lower right direction.

[0043] The inlet position of the blanking guide groove is provided with a movable baffle for buffering the impact force when the workpiece is blanked to prevent the workpiece from being pushed away by the blanking push rod.

[0044] In use, the workpiece is first placed into the conveying unit of the first chamfering device. After chamfering by the first chamfering device, the workpiece is flipped by the turnover frame with the unchamfered side facing up and transferred to the conveying unit of the second chamfering device. Then, the workpiece is chamfered by the second chamfering device to complete the double-side chamfering.

[0045] When the first chamfering device is chamfering, the workpiece is moved to the front of the feeding push rod by the conveying belt of the conveying unit, the sensor senses the workpiece, and the conveying unit is paused, the feeding push rod pushes the workpiece forward to the bearing table and clamps the workpiece in cooperation with the fixed clamping part, the driving assembly controls the chamfering table drill to move downward to complete one side chamfering, the chamfering table drill and the feeding push rod are reset, and the conveying unit continues to work to convey the next workpiece, and the feeding push rod is reset, and the unchamfered workpiece is pushed out of the bearing table by the forward movement of the discharging push rod, and the work is completed and reset;

[0046] When the workpiece is chamfered on one side, the workpiece is pushed by the feeding push rod to the discharging guide groove inclined to the turnover frame, the workpiece is slid into the adapter groove due to gravity, the turnover motor drives the rotating wheel to rotate counterclockwise, the workpiece is slid into the feeding guide groove due to gravity when reaching the feeding guide groove position, and the unchamfered surface of the workpiece is upward at this time.

[0047] When the second chamfering device is chamfering, the unchamfered surface upward workpiece is conveyed into the conveying belt of the second chamfering device through the feeding guide groove, and the second chamfering is completed through the same operation steps as the first chamfering device.

[0048] Embodiment two

[0049] As shown in Figure 4 the embodiment, the rotating wheel and the turnover motor of the original turnover frame are replaced by a receiving cylinder and a reciprocating air cylinder, the receiving cylinder is a box-shaped structure with an open end, the receiving cylinder is rotatably arranged on the mounting frame through a rotating shaft, the reciprocating air cylinder is arranged on the opposite surface of the receiving cylinder on the mounting frame, the reciprocating air cylinder is in transmission connection with the rotating shaft of the receiving cylinder to drive the receiving cylinder to twist back and forth, so that the opening of the receiving cylinder reciprocates between the discharging guide groove and the feeding guide groove, the receiving cylinder body is provided with a plurality of residue filtering holes, and the opening of the receiving cylinder is widened.

[0050] In use, the receiving cylinder is twisted to pause the workpiece from the discharging guide groove position, the receiving cylinder is twisted from above to the feeding guide groove position to pause by the reciprocating air cylinder, the workpiece is slid into the feeding guide groove due to gravity to complete the turnover of the workpiece, and then the receiving cylinder is twisted back to the discharging guide groove position by the reciprocating air cylinder, and the cycle operation is completed.

[0051] For those skilled in the art, the technical solutions described in the foregoing embodiments can be modified, equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An automatic double-sided chamfering machine comprising a worktable (1), said worktable (1) being divided into a high table surface and a low table surface, characterized in that: The high platform is provided with a first chamfering device (2), the low platform is provided with a surface turning frame (3) and a second chamfering device (4) which has the same structure as the first chamfering device (2), the workpiece is chamfered by the first chamfering device (2), then the surface of the workpiece which is not chamfered is turned upward by the surface turning frame (3), and then the workpiece is chamfered by the second chamfering device (4), so that the double-side chamfering is completed; The first chamfering device (2) comprises a chamfering drill (21) mounted on the workbench (1), a driving assembly (22) for controlling the up-down movement of the chamfering drill (21), a conveying unit (23) for conveying the workpiece, a clamping and pushing assembly (24) for fixing the workpiece, a bearing table (26) located at the bottom of the chamfering drill table for bearing the chamfering of the workpiece, and a discharging push rod (25) for pushing the workpiece out of the bearing table (26). The clamping and pushing assembly (24) comprises a fixed clamping part arranged on the bearing table (26) and a feeding push rod for clamping the workpiece in cooperation with the fixed clamping part, and the feeding push rod pushes the workpiece from the conveying unit (23) to the bearing table (26) to clamp the workpiece in cooperation with the fixed clamping part. The side of the bearing table (26) close to the conveying unit (23) is provided with a discharging push rod (25) aligned with the chamfering position of the workpiece, and the discharging push rod (25) pushes the workpiece with completed chamfering to the surface turning frame (3); the upper surface of the conveying unit (23), the lower surface of the feeding push rod, the lower surface of the discharging push rod (25) and the upper surface of the bearing table (26) are flush or slightly higher.

2. The automatic double-side chamfering machine according to claim 1, characterized in that: The surface turning frame (3) comprises a rotating wheel (31) mounted on the workbench (1) through a mounting frame and a surface turning motor (32) for controlling the rotation of the rotating wheel (31), and the rotating wheel (31) is provided with a plurality of concave transfer grooves (33) arranged at equal angles around the axis of the rotating wheel (31), and the rotating wheel (31) is further provided with baffles (34) on both sides. The side of the bearing table (26) opposite to the discharging push rod (25) is provided with a discharging guide groove (5) inclined to the surface turning frame (3), the discharging push rod (25) pushes the workpiece with single-side chamfering into the discharging guide groove (5), and the discharging guide groove (5) guides the workpiece with single-side chamfering into the transfer groove (33) of the surface turning frame (3). The workbench (1) on the side of the surface turning frame (3) close to the second chamfering device (4) is provided with an inlet guide groove (6) for guiding the workpiece with single-side chamfering from the transfer groove (33) into the conveying unit of the second chamfering device (4).

3. The automatic double-sided chamfering machine according to claim 2, characterized in that: The mounting frame for fixing the rotating wheel (31) is further provided with an arc-shaped baffle (35) for preventing the workpiece from sliding out in advance.

4. The automatic double-sided chamfering machine according to claim 2, characterized in that: The workbench (1) between the surface turning frame (3) and the first chamfering device (2) is provided with a residue box (7), the bottom of the discharging guide groove (5) is provided with a plurality of residue filtering holes, the bottom of the residue filtering holes is provided with a residue guide pipe (8) for guiding the residue into the residue box (7). The side of the inlet guide groove (6) opposite to the second chamfering device (4) is further provided with a residue guide groove (9) for guiding the residue in the transfer groove (33) into the residue box (7).

5. The automatic double-sided chamfering machine according to claim 2, characterized in that: The inlet position of the blanking guide groove (5) is provided with a movable baffle (10) for buffering the impact force when the workpiece is blanked.

6. The automatic double-sided chamfering machine according to claim 2, characterized in that: The rotating wheel (31) and the turning motor (32) of the turning frame (3) are replaced by a receiving cylinder (36) and a reciprocating cylinder (37), the receiving cylinder (36) is a box-shaped structure with one end open, the receiving cylinder (36) is rotatably arranged on a mounting frame through a rotating shaft, the opposite surface of the receiving cylinder (36) on the mounting frame is provided with the reciprocating cylinder (37), the reciprocating cylinder (37) is in transmission connection with the rotating shaft of the receiving cylinder (36) to drive the receiving cylinder (36) to twist back and forth, so that the opening of the receiving cylinder (36) reciprocates between the blanking guide groove (5) and the feeding guide groove (6). The receiving cylinder (36) is provided with a plurality of residue filtering holes, and the opening of the receiving cylinder (36) is widened.

Images