Gripping device for five-axis numerical control grinding machine and five-axis numerical control grinding machine

Abstract

The utility model provides a gripping device for a five-axis numerical control grinding machine, which comprises a rotary unit, a gripping unit, a driving unit and a driving unit, the rotary unit comprises a rotary seat and a connecting seat, the rotary seat comprises a fixed part and a rotating part, and the rotating part rotates relative to the fixed part; the connecting seat is fixedly connected with the rotating piece, so that the rotating piece drives the connecting seat to rotate; the connecting seat comprises a joint part and a mounting part, and the mounting part forms at least one bulge relative to the joint part; the grabbing unit comprises a mechanical gripper, and the mechanical gripper is fixed to the mounting part; and the locking unit comprises a telescopic piece, the telescopic piece is fixed to the side edge of the connecting base and arranged opposite to the protrusion, and the telescopic piece enables the rod to stretch out and abut against the protrusion under the condition of power failure. According to the grabbing device provided by the utility model, when power or gas is cut off accidentally, the connecting seat can be locked on the basis that the rod of the telescopic piece abuts against the bulge, so that the connecting seat is prevented from driving the manipulator to fall down and damage the grinding machine, the safety performance of the five-axis numerical control grinding machine can be improved, and the service life of the five-axis numerical control grinding machine can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control grinding machine technical field, concretely relates to a kind of grabbing device and five-axis numerical control grinding machine for five-axis numerical control grinding machine. BACKGROUND

[0002] Grinding machine is a machine tool for metal processing, usually used for grinding workpieces to obtain high precision and good surface finish. The existing grinding machine equipment generally sets up automatic feeding and discharging mechanism, and the automatic feeding and discharging mechanism includes a mechanical gripper to move the material to the grinding machine for grinding by the mechanical gripper. The mechanical gripper is generally fixed on the rotary seat to drive the rotary seat to rotate by the cylinder structure to move the mechanical gripper structure.

[0003] In the existing automatic feeding and discharging mechanism, a pull rod cylinder is generally used, which causes a protruding part, and the overall mechanism is shaped, difficult to install, and not aesthetically pleasing. When the cylinder is accidentally powered off or gas is broken, the rotary seat is not supported and easily swings downward, which can cause the mechanical gripper to collide with other parts and be damaged. SUMMARY

[0004] The utility model aims to provide a grabbing device for five-axis numerical control grinding machine and five-axis numerical control grinding machine to solve the above-mentioned deficiencies in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides a grabbing device for five-axis numerical control grinding machine, comprising:

[0006] A rotary unit includes a rotary seat and a connecting seat, the rotary seat includes a fixed part and a rotating part, and the rotating part rotates relative to the fixed part; the connecting seat is fixedly connected with the rotating part to drive the connecting seat to rotate; the connecting seat includes a joint and a mounting part, and the mounting part forms at least one protrusion relative to the joint;

[0007] A grabbing unit includes a mechanical gripper, and the mechanical gripper is fixed to the mounting part.

[0008] A locking unit includes an extension piece, the extension piece is fixed to the side of the connecting seat and is arranged opposite to the protrusion, and the extension piece extends out and abuts against the protrusion in the case of power failure; the extension piece retracts in the case of power on.

[0009] In one embodiment, the side of the protrusion facing the extension piece is provided with a groove, the size of the groove is matched with the size of the rod of the extension piece, and the position of the groove is matched with the position of the rod of the extension piece.

[0010] In one embodiment, the extension piece includes one of a travel switch, an electric push rod and an electromagnetic telescopic rod.

[0011] In one embodiment, the rotating unit further comprises a driving device for driving the rotating member to rotate relative to the fixed member, and the driving device is a magnetic coupling type rodless cylinder.

[0012] In one embodiment, the rotating unit further comprises a mounting unit, the mounting unit comprises a mounting plate and a sliding member, the mounting plate is fixed to the frame of the five-axis numerical control grinding machine, and the sliding member slides relative to the mounting plate.

[0013] The rotating unit further comprises a rotating bracket, the magnetic coupling type rodless cylinder is fixed to the rotating bracket, the fixed member is fixed to the side of the magnetic coupling type rodless cylinder opposite to the rotating bracket, and the rotating bracket is connected with the sliding member.

[0014] In one embodiment, the rotating unit further comprises a housing, the housing covers the mounting plate and the rotating bracket, the mounting plate is fixed to the inner side of the housing, and the rotating bracket is a triangular support structure, so that the rotating seat is inclined downward.

[0015] In one embodiment, the mounting plate is provided with a sliding rail, the sliding member comprises a first sliding block and a driving member for driving the first sliding block to move along the sliding rail, the driving member comprises a driving rod, and the first sliding block is provided with a U-shaped opening so that the driving rod is sleeved in the U-shaped opening.

[0016] In one embodiment, the number of the sliding rails is two, and the two sliding rails are arranged in parallel; the sliding member further comprises two second sliding blocks and a sliding plate, the two second sliding blocks are matched with the sliding rails so that the second sliding blocks slide on the sliding rails, the sliding plate is fixedly connected with the two second sliding blocks, the first sliding block is fixed to the side of the sliding plate away from the first sliding block, and the rotating bracket is fixedly installed on the sliding plate.

[0017] In one embodiment, the gripping unit further comprises a wedge block, and the mechanical hand is fixedly connected with the mounting portion through the wedge block.

[0018] The utility model also provides a five-axis numerical control grinding machine, and the frame and the gripping device for the five-axis numerical control grinding machine in any one of the above aspects.

[0019] In the above technical scheme, the gripping device for the five-axis numerical control grinding machine provided by the utility model can lock the connecting seat based on the abutment of the rod and the protrusion of the telescopic member when unexpected power failure or gas failure occurs, so as to prevent the connecting seat from driving the mechanical hand to fall down and damage the grinding machine, and the safety performance and service life of the five-axis numerical control grinding machine can be improved. Moreover, the gripping device provided by the utility model has a compact structure and an attractive appearance, is convenient to install as a whole module on the frame, and is convenient to disassemble and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the technical scheme of the embodiments of the present application or the prior art clearer, the drawings needed in the embodiments will be briefly introduced below, obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 The overall structure schematic diagram of the five-axis numerical control grinding machine is shown in the embodiment of the present application.

[0022] Figure 2 The structure schematic diagram of the grabbing device is shown in the embodiment of the present application.

[0023] Figure 3 The partial structure schematic diagram of the grabbing device is shown in the embodiment of the present application.

[0024] Figure 4 Another partial structure schematic diagram of the grabbing device is shown in the embodiment of the present application.

[0025] Figure 5 Another partial structure schematic diagram of the grabbing device is shown in the embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail below with reference to the drawings.

[0027] The present application provides a grabbing device for a five-axis numerical control grinding machine, Figure 1 The overall structure schematic diagram of the five-axis numerical control grinding machine is shown in the embodiment of the present application. Figure 2 The structure schematic diagram of the grabbing device is shown in the embodiment of the present application. Figure 3 The partial structure schematic diagram of the grabbing device is shown in the embodiment of the present application. Figure 4 Another partial structure schematic diagram of the grabbing device is shown in the embodiment of the present application. Figure 5 Another partial structure schematic diagram of the grabbing device is shown in the embodiment of the present application. Figures 1 to 5 As shown in the embodiment of the present application, the grabbing device is used in the five-axis numerical control grinding machine equipment, which is used for grabbing materials and putting the materials into the grinding and washing position, so as to facilitate the five-axis numerical control grinding machine to process the materials.

[0028] The grabbing device 200 comprises a rotating unit and a grabbing unit.

[0029] The mechanical grabber 230 is a structure capable of realizing the functions of grabbing and dropping materials by control, and the specific structure of the mechanical grabber 230 is not limited in the utility model, and any structure capable of realizing the functions can be used in the prior art or in the future.

[0030] In the five-axis numerical control grinding machine, the grabbing device 200 is located above the material placing device 300 and the grinding and washing device 400, the rotating member 2211 in the rotating seat 221 drives the mechanical grabber 230 to rotate, the initial position of the mechanical grabber 230 is located above, when it is necessary to grab the material, the rotating seat 221 drives the mechanical grabber 230 to rotate downward, and the horizontal moving mechanism on the rack 100 of the five-axis numerical control grinding machine drives the grabbing device 200 to move horizontally to the grinding and washing device 400, so that the material falls into the grinding and washing position, and then returns to the initial position, meanwhile, the rotating seat 221 drives the mechanical grabber 230 to rotate upward, and the mechanical grabber 230 returns to the initial position.

[0031] The utility model discloses at least one convex 2221 is formed to the installation part relative to the joint, and the convex 2221 projects from the side of the joint, further, setting locking unit, locking unit includes telescopic piece 240, and telescopic piece 240 is fixed to the side of connecting seat 222 and is opposite to the setting of convex 2221, and telescopic piece 240 will stretch out and abut to convex 2221 under the condition of power failure, and telescopic piece 240 will retract under the condition of power on.

[0032] The grabbing device 200 for the five-axis numerical control grinding machine can lock the connecting seat 222 based on the abutment between the rod of the telescopic piece 240 and the convex 2221 when power failure or gas failure occurs, so that the connecting seat 222 does not drive the mechanical hand to drop downward and damage the grinding machine, and the safety performance and service life of the five-axis numerical control grinding machine can be improved.

[0033] In an embodiment, the side of the protrusion 2221 facing the telescopic member 240 is provided with a groove, the size of the groove is matched with the size of the rod of the telescopic member 240, and the position of the groove is matched with the position where the rod of the telescopic member 240 extends.

[0034] Through the design of the groove, in the case of power failure, the rod of the telescopic member 240 extends and is clamped in the groove, so that the telescopic member 240 does not need to exert a relative abutting force on the protrusion 2221, which can limit the downward rotation of the connecting seat 222, thereby locking the connecting seat 222 and preventing the mechanical gripper 230 from falling downward.

[0035] In the case that the side of the protrusion 2221 is not designed with a groove, the power component of the telescopic member 240 needs to exert a larger force on the telescopic rod to increase the friction force at the abutting position of the rod end and the protrusion 2221, thereby preventing the mechanical gripper 230 from falling downward.

[0036] In an embodiment, the telescopic member 240 includes one of a travel switch, an electric push rod and an electromagnetic telescopic rod.

[0037] The telescopic member 240 can adopt any device that can realize the function of extending the rod in the case of power failure and retracting the rod in the case of power on, which is available in the art or can be used in the future.

[0038] The travel switch, the electric push rod and the electromagnetic telescopic rod are exemplary devices that can realize the above-mentioned function, and in the specific implementation of the grabbing device 200 provided by the present application, one of them can be used, and the specific structural design can be designed according to the application needs, for example, through electric control or gas control, or a combination of both, through gas control, the rod is retracted in the case of air supply, and the rod is extended in the case of accidental air failure. Specifically, the appropriate device can be selected according to the probability of accidental power failure and accidental air failure.

[0039] In an embodiment, the rotating unit further includes a driving device 223 for driving the rotation of the rotating member 2211 relative to the fixed member 2212, and the driving device 223 is a magnetic coupling type rodless cylinder.

[0040] The magnetic coupling type rodless cylinder has a simple structure and is a rodless structure, which can avoid dust pollution in the cylinder and affect the service life of the driving device 223.

[0041] In the present application, the driving device 223 adopts a magnetic coupling type rodless cylinder, which can simplify the structure of the entire grabbing device 200, and the circuit is simple, so that the structure of the entire grabbing device 200 is clear, and complex assembly and wiring operation are not needed, which can improve the production efficiency of the grabbing device 200 and reduce the production cost of the grabbing device 200.

[0042] In one example, the magnetic couple type rodless cylinder can be fixedly installed, and the remaining components can be installed on the magnetic couple type rodless cylinder.

[0043] In one embodiment, the grabbing device 200 further comprises a mounting unit, the mounting unit comprising a mounting plate 211 fixed to the rack 100 of the five-axis numerical control grinding machine and a sliding member sliding relative to the mounting plate 211; the mounting unit is used to mount the grabbing device 200 on the rack 100, the sliding member slides relative to the mounting plate 211 to realize the movement of the grabbing device 200 in the Z-axis direction; in addition, the rack 100 is provided with a horizontal movement mechanism to drive the mounting plate 211 or the mounting unit to move to realize the movement in the X-axis direction. The Y-axis direction remains unchanged, and by mounting the mechanical gripper 230 at a specified position on the Y-axis, the mechanical gripper 230 can be within the Y value range, and the grinding and washing device 400 and the material are placed at the specified Y-axis position, that is, the mechanical gripper 230 can be moved up and down or horizontally to grab the material.

[0044] The rotating unit further comprises a rotating bracket 224, the magnetic couple type rodless cylinder is fixed to the rotating bracket 224, the fixing member 2212 is fixed to the side of the magnetic couple type rodless cylinder opposite to the rotating bracket 224, and the rotating bracket 224 is connected with the sliding member.

[0045] The rotating bracket 224 is used to fix the rotating seat 221 to the mounting plate 211, and the rotating bracket 224 can be a triangular bracket, so that the rotating seat 221 is arranged at an angle relative to the mounting plate 211, for example, is inclined downward, so that the mechanical gripper 230 can grab the material downward.

[0046] Based on the magnetic couple type rodless cylinder, the component can be fixed above or below the rotating seat 221, and is preferably connected with the fixing member 2212 in the rotating seat 221, so that the installation of the cylinder does not affect the rotation of the rotating seat 221, the magnetic couple type rodless cylinder is fixed to the side away from the rotating member 2211 of the fixing member 2212, and the magnetic couple type rodless cylinder is fixedly connected with the rotating bracket 224, so that the whole device is coaxially installed, and the structure after installation is simple, neat and beautiful.

[0047] In one embodiment, the grabbing device 200 further comprises an outer shell 250. Figure 2 As shown in the figure, the outer shell 250 covers the mounting plate 211 and the rotating bracket 224, the mounting plate 211 is fixed to the inner side of the outer shell 250, and the rotating bracket 224 is a triangular support structure, so that the rotating seat 221 is arranged to be inclined downward.

[0048] The mounting plate 211, the rotary support 224 and the partial magnetic coupling type rodless cylinder are covered by the shell 250, so that the whole grabbing device 200 is beautiful in appearance, can be produced and installed in a modular manner, and the assembly efficiency of the five-axis numerical control grinding machine is improved.

[0049] In an embodiment, the mounting plate 211 is provided with sliding rails 212, the sliding member comprises a first sliding block 215 and a driving member 217 for driving the first sliding block 215 to move along the sliding rails 212, the driving member 217 comprises a driving rod 216, and the first sliding block 215 is provided with a U-shaped opening so that the driving rod 216 is sleeved in the U-shaped opening.

[0050] The first sliding block 215 is driven to move by the driving member 217, so that the first sliding block 215 can drive the rotary support 224 to move in the Z-axis direction. The first sliding block 215 is provided with a U-shaped opening, so that the driving rod 216 is sleeved in the sliding block from the U-shaped opening, realizing quick installation of the driving rod 216 and the first sliding block 215 and facilitating disassembly. The first sliding block 215 can be fixedly connected with the rotary support 224, or can be indirectly fixedly connected with the rotary support 224 through the arrangement of other intermediate members, so that the first sliding block 215 can drive the rotary support 224 to move in the Z-axis direction.

[0051] In an embodiment, the number of sliding rails 212 is two, and the two sliding rails 212 are arranged in parallel; the sliding member further comprises two second sliding blocks 213 and a sliding plate 214, the two second sliding blocks 213 are matched with the sliding rails 212, so that the second sliding blocks 213 slide on the sliding rails 212; the sliding plate 214 is fixedly connected with the two second sliding blocks 213, and the first sliding block 215 is fixed on a side of the sliding plate 214 away from the first sliding block 215; and the rotary support 224 is fixedly installed on the sliding plate 214.

[0052] In the utility model, through the arrangement of the two sliding rails 212, the balance and stability of the rotary unit can be improved, the rotary unit can still keep stable during rotation, and the accurate grabbing of the grabbing device 200 on materials is ensured.

[0053] Through the arrangement of the two sliding rails 212 and the two second sliding blocks 213 which slide along the two sliding rails 212 respectively, the sliding plate 214 is fixedly connected with the two second sliding blocks 213, and the rotary support 224 is fixed on the sliding plate 214, so that the connection or fixation between the plates is more stable and the structure is more firm. The first sliding block 215 which plays a driving role is fixedly connected with the sliding plate 214, the first sliding block 215 drives the sliding plate 214, the sliding plate 214 drives the two second sliding blocks 213 to move, and the whole structure fully considers the balance performance and stability performance of the structure, so as to provide the five-axis numerical control grinding machine with a stable and accurate grabbing device 200.

[0054] In one embodiment, the grabbing unit further comprises a wedge block 231, and the mechanical grab 230 is fixedly connected with the mounting portion through the wedge block 231.

[0055] The wedge block 231 is arranged so that the grabbing direction of the mechanical grab 230 can be adapted to the placement position of the material, and the angle of the wedge block 231 can be adjusted according to the grabbing requirement, so that the material can be grabbed without adjusting the angle of the mechanical grab 230 when the mechanical grab 230 rotates to the lower position, and the grabbing efficiency is improved.

[0056] The utility model also provides a five -axis numerical control grinding machine, like Figure 1 As shown in the figure, the rack 100 and the grabbing device 200 for the five -axis numerical control grinding machine of any one of the above aspects. The five -axis numerical control grinding machine adopts the grabbing device 200 described above, which can stably and accurately grab and drop the material, has a protection function in the case of unexpected power failure or power failure, and the overall structure of the grinding machine is more compact and beautiful.

[0057] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled in the art, under the condition that without deviating from the spirit and scope of the utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection claimed by the utility model.

Claims

1. A gripping device for a five-axis CNC grinding machine, characterized in that, The application relates to a grabbing device for a five-axis numerical control grinding machine. The grabbing device comprises a rotating unit, a grabbing unit and a locking unit. The rotating unit comprises a rotating seat and a connecting seat. The rotating seat comprises a fixed part and a rotating part.

2. The gripping device according to claim 1, characterized in that The rotating part rotates relative to the fixed part.

3. The gripping device according to claim 1 or 2, characterized in that The connecting seat is fixedly connected with the rotating part so that the rotating part drives the connecting seat to rotate.

4. The gripping device of claim 1, wherein The connecting seat comprises an engaging part and a mounting part.

5. The gripping device according to claim 4, characterized in that The mounting part forms at least one protrusion relative to the engaging part. The grabbing unit comprises a mechanical grabber. The mechanical grabber is fixed to the mounting part.

6. The gripping device according to claim 5, characterized in that The locking unit comprises a telescopic part.

7. The gripping device of claim 5, wherein The telescopic part is fixed to the side of the connecting seat and is arranged opposite the protrusion.

8. The gripping device according to claim 7, characterized in that The telescopic part extends a rod and abuts against the protrusion in the case of power failure.

9. The gripping device of claim 7, wherein The telescopic part retracts the rod in the case of power supply.

10. A five-axis CNC grinding machine, characterized by The side of the protrusion facing the telescopic part is provided with a groove. The size of the groove is matched with the size of the rod of the telescopic part. The position of the groove is matched with the position of the rod of the telescopic part. The telescopic part comprises one of a travel switch, an electric push rod and an electromagnetic telescopic rod. The rotating unit further comprises a driving device for driving the rotating part to rotate relative to the fixed part. The driving device is a magnetic coupling type rodless air cylinder. The application further comprises: The mounting unit comprises a mounting plate and a sliding part. The mounting plate is fixed to the frame of the five-axis numerical control grinding machine. The sliding part slides relative to the mounting plate. The rotating unit further comprises a rotating support. The magnetic coupling type rodless air cylinder is fixed to the rotating support. The fixed part is fixed to the side of the magnetic coupling type rodless air cylinder opposite to the rotating support. The rotating support is connected with the sliding part. The application further comprises: The housing covers the mounting plate and the rotating support. The mounting plate is fixed to the inner side of the housing. The rotating support is a triangular support structure. The mounting plate is provided with a slide rail. The sliding part comprises a first sliding block and a driving part for driving the first sliding block to move along the slide rail. The driving part comprises a driving rod. The first sliding block is provided with a U-shaped opening so that the driving rod is sleeved in the U-shaped opening. The number of the slide rails is two. The two slide rails are arranged in parallel. The sliding part further comprises two second sliding blocks and a sliding plate. The two second sliding blocks are matched with the slide rails so that the second sliding blocks slide on the slide rails. The sliding plate is fixedly connected with the two second sliding blocks. The first sliding block is fixed to the side of the sliding plate away from the first sliding block. The rotating support is fixedly installed on the sliding plate. The grabbing unit further comprises a wedge-shaped block. The mechanical grabber is fixedly connected with the mounting part through the wedge-shaped block. The application further comprises the frame and the grabbing device for the five-axis numerical control grinding machine.

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