Online polishing device for aluminum bar mold

Abstract

The invention discloses an online polishing device for an aluminum bar mold, in particular to an online polishing device for the aluminum bar mold, which comprises a chassis, a polishing mechanism mounting frame and a clamping mechanism, and realizes efficient polishing through multi-axis linkage: a first motor drives a polishing mechanism mounting plate to vertically feed, and a transverse motor drives a transverse moving plate to horizontally move; in combination with overall displacement driven by an electric trolley or a lead screw, a polishing rod moves along a three-dimensional track and is matched with a polishing motor rotating at a high speed to remove residues and surfaces of the mold; the clamping mechanism drives a mold clamp and a triangular placing table on the conveying belt to clamp the mold through a second motor, and is seamlessly connected with the production line; the anti-loosening locking mechanism of the quick-change chuck improves the safety; the modular design adapts to various molds, the device is rapidly installed beside the conveying belt through the guide protrusions, the improvement cost is low, the production efficiency and the environmental protection performance are remarkably improved, and the device meets the intelligent production requirement of the aluminum machining industry.

Description

Technical Field

[0001] The present invention relates to a grinding device, in particular to an on-line grinding device for aluminum rod molds. Background Art

[0002] In the automated production of the aluminum processing industry, the traditional aluminum rod production line adopts a dual-mold rotation + off-line cleaning mode, that is, when one set of molds is used for extrusion production, the other set of molds is cleaned by static methods such as high-pressure water flushing and solvent immersion. However, this process has significant technical bottlenecks: on the one hand, static cleaning is difficult to thoroughly remove aluminum chips, oxides, and oil stains on the inner and outer surfaces of the mold, especially in complex areas such as inner holes, deep holes, stepped surfaces, and curved surfaces, resulting in defects such as pits and scratches on the surface of the aluminum rod; on the other hand, off-line cleaning requires manual disassembly and handling of the molds, and the single process takes 5 - 8 minutes. Adding the drying time, the overall equipment efficiency is less than 70%. In addition, the traditional process has poor compatibility with multi-specification molds, long changeover time, low equipment utilization rate in multi-variety production scenarios, and at the same time, a large amount of chemical solvents are used to generate high-cost waste liquid, which not only endangers health but also exacerbates equipment wear. With the increasing requirements for the surface roughness and other precision of aluminum products in fields such as new energy vehicles and aerospace, the shortcomings of the traditional process in terms of cleaning ability, efficiency, flexible production, and environmental protection and safety have become increasingly prominent, and innovation is urgently needed.

[0003] Existing improvement solutions such as robotic arm off-line grinding and enhanced chemical cleaning still have problems such as low efficiency, high cost, and poor compatibility. In view of the above pain points, the present invention proposes an aluminum rod mold cleaning that integrates multi-axis linkage and on-line dynamic grinding, promoting the transformation of the aluminum processing industry to a modern production mode of high precision, high efficiency, and sustainability with intelligent and green design, and having significant economic and social value in the field of high-end manufacturing. Summary of the Invention

[0004] The purpose of the present invention is to provide an on-line grinding device for aluminum rod molds. After the aluminum rod mold is conveyed to the working station by a conveyor belt through the on-line grinding device for aluminum rod molds, it is fixed by a clamping mechanism, and then the driving mechanism drives the grinding mechanism to move. The three-dimensional movement of the grinding rod is controlled by a first motor and a transverse motor, and the grinding motor drives the grinding rod to rotate at a high speed for grinding. At the same time, a dust suction device processes the dust to achieve the removal of mold residues and quality improvement, thereby solving the above problems.

[0005] To achieve the above object, the present invention provides the following technical solutions: An on-line grinding device for aluminum rod molds, including a chassis, characterized in that a grinding mechanism mounting frame is slidably and guidingly installed on the chassis, and a clamping mechanism is fixedly installed on one side of the chassis for fixing the mold; A cross plate is arranged at the top of the grinding mechanism mounting frame. A first motor is fixedly installed on the cross plate. The rotating shaft of the first motor is a lead screw rotating shaft and faces downward. A through guiding groove is formed in the middle of the inner side of the grinding mechanism mounting frame. A grinding mechanism mounting plate is slidably and guidingly arranged in the guiding groove. The tail of the grinding mechanism mounting plate passes through the guiding groove, and a vertically through threaded hole is arranged in the protruding part after passing through. The lead screw rotating shaft of the first motor is in threaded through connection with the threaded hole at the tail end of the mounting plate; Vertical plates are arranged on both sides of the grinding mechanism mounting plate. A horizontal guiding shaft is fixedly installed between the two vertical plates on both sides, and a horizontal lead screw shaft is rotatably installed between the two vertical plates on both sides. The horizontal guiding shaft is parallel to the horizontal lead screw shaft; A horizontal motor is fixedly arranged on the outer side of one of the vertical plates. The horizontal motor is drivingly connected with the horizontal lead screw shaft; The horizontal guiding shaft and the horizontal lead screw shaft are jointly inserted into a horizontally moving plate. The horizontally moving plate is slidably and guidingly connected with the horizontal guiding shaft and is in threaded connection with the horizontal lead screw shaft; A grinding motor is fixedly installed on the horizontally moving plate, and a replaceable grinding rod is arranged at the end of the driving shaft of the grinding motor.

[0006] The clamping mechanism includes a clamping mechanism mounting frame. A cross plate is arranged at the top of the clamping mechanism mounting frame. A second motor is fixedly installed on the cross plate. The rotating shaft of the second motor is a lead screw rotating shaft and faces downward. A through guiding groove is formed in the middle of the inner side of the clamping mechanism mounting frame. A mold clamp is slidably and guidingly arranged in the guiding groove. The tail of the mold clamp passes through the guiding groove, and a vertically through threaded hole is arranged in the protruding part after passing through. The lead screw rotating shaft of the second motor is in threaded through connection with the threaded hole at the tail end of the mold clamp.

[0007] The specific way that the grinding mechanism mounting frame is slidably and guidingly installed on the chassis is that guiding protrusions are arranged on the chassis, and the grinding mechanism mounting frame is slidably and guidingly installed on the guiding protrusions.

[0008] The device is placed beside the aluminum bar mold conveyor belt. Specifically, the mold clamp of the device is located above the conveyor belt, and an aluminum bar mold placing table is fixedly installed on the conveyor belt.

[0009] The mold clamp is a triangular clamping opening type with the opening facing downward, and the aluminum bar mold placing table is a triangular clamping opening type with the opening facing upward. The triangular clamping openings cooperate with each other to clamp the mold tightly.

[0010] A driving mechanism is arranged at the bottom side of the grinding mechanism mounting frame.

[0011] The driving mechanism is an electric trolley. The electric trolley is fixedly installed at the bottom side of the grinding mechanism mounting frame, and its driving wheels are in contact with the chassis.

[0012] The driving mechanism is a lead screw drive, including a driving motor fixed to the chassis. Its driving shaft is a lead screw shaft. A threaded hole is provided on the bottom side of the grinding mechanism mounting frame, and the threaded hole is threadedly connected to the driving shaft of the driving motor.

[0013] A dust suction device is provided on the grinding mechanism mounting frame. The dust suction device is arranged outside the grinding motor and the grinding rod, and the dust suction device is connected to an external dust removal device through a pipeline.

[0014] The grinding rod is connected to the end of the driving shaft of the grinding motor through a quick-change chuck. The quick-change chuck is internally provided with an anti-loosening locking mechanism. After the grinding rod is installed in place, by rotating the locking ring or pressing the locking button, the quick fixing and reliable locking of the grinding rod are realized.

[0015] The working mechanism of the online grinding device for aluminum bar molds is based on multi-axis linkage precision control and automation coordination, and realizes efficient grinding through the following process: The mold is conveyed to the working station by the conveyor belt and placed on the mold placement table with a triangular clamping opening. The second motor drives the mold clamp to descend and clamp the mold; the driving mechanism drives the grinding mechanism mounting frame to slide along the chassis to the working position. The first motor and the transverse motor respectively control the vertical and horizontal feeding of the grinding rod to form a three-dimensional motion trajectory; the grinding motor drives the grinding rod to rotate at a high speed, and different grinding tools can be quickly replaced through the quick-change chuck. At the same time, the contact pressure is adaptively adjusted by the feedback of the motor current; the dust suction device is started synchronously, and the annular suction port collects dust and conveys it to the external dust removal system for treatment through the pipeline; the whole process is coordinated by the control system to form a closed-loop control, ensuring that the mold completes efficient and precise surface grinding during the conveying process, realizing residue removal and quality improvement.

[0016] Compared with the prior art, the beneficial effects of the present invention are: Three-dimensional dynamic grinding covers the whole area: Utilizing the three-axis linkage of the first motor for vertical feeding, the transverse motor for horizontal feeding and the overall displacement of the driving mechanism, the grinding rod can penetrate into the inner hole of the mold and perform spiral or reciprocating motion around the curved surface, removing residues that cannot be reached by traditional cleaning without dead corners, and avoiding surface defects of the aluminum bar from the source.

[0017] Seamlessly connect to the production line: The mold directly enters the grinding station along with the conveyor belt, is automatically positioned by the triangular clamping opening placement table, the second motor drives the mold clamp to quickly clamp, and is immediately released and transported to the next process after grinding is completed, without manual handling or downtime waiting.

[0018] The suction port outside the grinding area forms a local negative pressure field, and aluminum chips and dust are collected in real time, reducing the dust concentration in the workshop, meeting the occupational health standards, and at the same time reducing the wear of the transmission components such as the lead screw and the guide rail by dust, and reducing the equipment failure rate.

[0019] The locking mechanism of the quick-change chuck is automatically locked under the action of centrifugal force, avoiding the safety hazards caused by the loosening of traditional threaded connections due to vibration, and cooperating with the overload protection of the pressure sensor to ensure the continuous and stable operation of the production line.

[0020] The device does not need to transform the main structure of the original production line. Only the mold fixture needs to be aligned above the conveyor belt, and the grinding mechanism is installed through the guiding protrusions, and the debugging and access can be quickly completed, reducing the transformation cost compared with the traditional off-line equipment.

[0021] Compatibility with multiple specifications of molds: By replacing the triangular clamping module and adjusting the stroke of the driving mechanism, various aluminum rod molds can be adapted, and there is no need to repeat the investment for different specifications of equipment, which is especially suitable for the production scenario of multiple varieties and small batches. Brief Description of the Drawings

[0022] Figure 1 It is a three-dimensional structure schematic diagram of an on-line grinding device for an aluminum rod mold of the present invention; Figure 2 It is a structure schematic diagram of the grinding mechanism of an on-line grinding device for an aluminum rod mold of the present invention; Figure 3 It is a structure schematic diagram of the clamping mechanism of an on-line grinding device for an aluminum rod mold of the present invention; Figure 4 It is a structure schematic diagram of the cooperation between the clamping mechanism of an on-line grinding device for an aluminum rod mold and the aluminum rod mold conveyor belt of the present invention; In the figure: 1, chassis; 11, guiding protrusion; 2, grinding mechanism mounting frame; 21, first motor; 22, grinding mechanism mounting plate; 23, first motor screw rotating shaft; 24, horizontal guiding shaft; 25, horizontal screw shaft; 26, horizontal motor; 27, horizontal moving plate; 28, grinding motor; 29, grinding rod; 3, clamping mechanism mounting frame; 31, second motor; 32, mold fixture; 33, second motor screw rotating shaft; 4, aluminum rod mold conveyor belt; 41, aluminum rod mold placing table; 51, electric trolley. Detailed Embodiment

[0023] Next, the technical solutions in the embodiments of the present invention will be completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] As Figures 1-4 shown, an on-line grinding device for an aluminum rod mold includes a chassis 1, and is characterized in that a grinding mechanism mounting frame 2 is slidably and guidingly installed on the chassis 1, and a clamping mechanism is fixedly installed on one side of the chassis 1 for fixing the mold; A cross plate is provided at the top of the grinding mechanism mounting bracket 2. A first motor 21 is fixedly installed on the cross plate. The rotating shaft of the first motor 21 is a lead screw rotating shaft 23 and faces downward. A through guide groove is opened in the middle inside the grinding mechanism mounting bracket 2. A grinding mechanism mounting plate 22 is slidably and guidingly arranged in the guide groove. The tail of the grinding mechanism mounting plate 22 passes through the guide groove and a vertically through threaded hole is provided in the protruding part. The lead screw rotating shaft 23 of the first motor 21 is in threaded through connection with the threaded hole at the tail end of the mounting plate 22; Vertical plates are provided on both sides of the grinding mechanism mounting plate 22. A horizontal guide shaft 24 is fixedly installed between the vertical plates on both sides and a horizontal lead screw shaft 25 is rotatably installed between the vertical plates on both sides. The horizontal guide shaft 24 is parallel to the horizontal lead screw shaft 25; A horizontal motor 26 is fixedly arranged on the outer side of one of the vertical plates. The horizontal motor 26 is drivingly connected to the horizontal lead screw shaft 25; The horizontal guide shaft 24 and the horizontal lead screw shaft 25 are jointly inserted into a horizontal moving plate 27. The horizontal moving plate 27 is slidably and guidingly connected to the horizontal guide shaft 24 and is in threaded connection with the horizontal lead screw shaft 25; A grinding motor 28 is fixedly installed on the horizontal moving plate 27. A replaceable grinding rod 29 is provided at the end of the driving shaft of the grinding motor 28.

[0025] The clamping mechanism includes a clamping mechanism mounting bracket 3. A cross plate is provided at the top of the clamping mechanism mounting bracket 3. A second motor 31 is fixedly installed on the cross plate. The rotating shaft of the second motor 31 is a lead screw rotating shaft 33 and faces downward. A through guide groove is opened in the middle inside the clamping mechanism mounting bracket 3. A mold clamp 32 is slidably and guidingly arranged in the guide groove. The tail of the mold clamp 32 passes through the guide groove and a vertically through threaded hole is provided in the protruding part. The lead screw rotating shaft 33 of the second motor 31 is in threaded through connection with the threaded hole at the tail end of the mold clamp 32.

[0026] The specific way that the grinding mechanism mounting bracket 2 is slidably and guidingly installed on the chassis 1 is that guide protrusions 11 are provided on the chassis 1, and the grinding mechanism mounting bracket 2 is slidably and guidingly installed on the guide protrusions 11.

[0027] The device is placed beside the aluminum bar mold conveyor belt 4. Specifically, the mold clamp 32 of the device is located above the conveyor belt 4, and an aluminum bar mold placement table 41 is fixedly installed on the conveyor belt 4.

[0028] The mold clamp 32 is a triangular clamping opening type with the opening facing downward, and the aluminum bar mold placement table 41 is a triangular clamping opening type with the opening facing upward. The triangular clamping openings cooperate with each other to clamp the mold tightly.

[0029] A driving mechanism is provided at the bottom side of the grinding mechanism mounting bracket 2.

[0030] The driving mechanism is an electric trolley 51, which is fixedly installed on the bottom side of the grinding mechanism mounting frame 2, and its driving wheels are in contact with the chassis 1.

[0031] The driving mechanism is a lead screw drive, including a driving motor fixed on the chassis 1. Its driving shaft is a lead screw shaft. A threaded hole is provided on the bottom side of the grinding mechanism mounting frame 2, and the threaded hole is threadedly connected to the driving shaft of the driving motor.

[0032] A dust collection device is provided on the grinding mechanism mounting frame 2. The dust collection device is arranged outside the grinding motor 28 and the grinding rod 29, and the dust collection device is connected to an external dust removal device through a pipeline.

[0033] The grinding rod 29 is connected to the end of the driving shaft of the grinding motor 28 through a quick-change chuck. The quick-change chuck is internally provided with an anti-loosening locking mechanism. After the grinding rod 29 is installed in place, by rotating the locking ring or pressing the locking button, the quick fixing and reliable locking of the grinding rod 29 can be realized.

[0034] The on-line grinding device for the aluminum bar mold is integrated beside the conveyor belt 4. The chassis 1 slidably mounts the grinding mechanism mounting frame 2 through the guiding protrusions 11, and the mold is fixed by the clamping mechanism on one side. During operation, the mold is sent to the working station by the conveyor belt and placed on the triangular placement table 41 with the opening facing upward. The second motor 31 drives the lead screw rotating shaft 33 to drive the mold clamp 32 to descend along the guiding groove, and forms multi-point clamping with the placement table with the triangular clamping opening facing downward. The clamping force is controlled by the motor torque to ensure the stability of the mold. The grinding mechanism realizes precise operation through multi-axis linkage: the first motor 21 drives the lead screw rotating shaft 23 to make the grinding mechanism mounting plate 22 vertically lift and lower along the guiding groove to adjust the height of the grinding rod 29; the transverse motor 26 drives the transverse lead screw shaft 25 to rotate to make the transverse moving plate 27 horizontally move along the transverse guiding shaft 24 to control the transverse feed of the grinding rod; the electric trolley 51 or the lead screw drive mechanism on the bottom side of the grinding mechanism mounting frame 2 drives the whole to horizontally move along the guiding protrusions 11 of the chassis to realize three-dimensional space positioning. The grinding motor 28 is connected to the grinding rod 29 through a quick-change chuck. The operator can replace the grinding tool by rotating the locking ring or pressing the button. During grinding, the motor drives the grinding rod to rotate at a high speed, and cooperates with the three-axis linkage trajectory, including spiral lines and reciprocating straight lines, to remove the residues on the inner and outer surfaces of the mold. At the same time, the dust collection device on the grinding mechanism mounting frame 2 forms a negative pressure field through the suction port to collect the aluminum chips and dust generated during grinding in real time, and transports them through the pipeline to the external dust removal device for gas-solid separation treatment to ensure efficient and stable on-line grinding operation.

Claims

1. An on-line polishing device for an aluminum rod mold, comprising a chassis (1), characterized in that, A grinding mechanism mounting frame (2) is slidably and guidingly mounted on the chassis (1), and a clamping mechanism is fixedly mounted on one side of the chassis (1) for fixing the mold; A cross plate is provided at the top of the grinding mechanism mounting frame (2), a first motor (21) is fixedly mounted on the cross plate, the rotating shaft of the first motor (21) is a lead screw rotating shaft (23) and faces downward, a through guiding groove is opened in the middle of the inner side of the grinding mechanism mounting frame (2), a grinding mechanism mounting plate (22) is slidably and guidingly arranged in the guiding groove, the tail of the grinding mechanism mounting plate (22) passes through the guiding groove and a vertically through threaded hole is provided in the protruding part, and the lead screw rotating shaft (23) of the first motor (21) is in threaded through connection with the threaded hole at the tail end of the mounting plate (22); Vertical plates are arranged on both sides of the grinding mechanism mounting plate (2), a transverse guiding shaft (24) is fixedly mounted between the vertical plates on both sides and a transverse lead screw shaft (25) is rotatably mounted between the vertical plates on both sides, and the transverse guiding shaft (24) is parallel to the transverse lead screw shaft (25); a transverse motor (26) is fixedly arranged on the outer side of one vertical plate, and the transverse motor (26) is drivingly connected with the transverse lead screw shaft (25); the transverse guiding shaft (24) and the transverse lead screw shaft (25) are jointly inserted into a transverse moving plate (27), the transverse moving plate (27) is slidably and guidingly connected with the transverse guiding shaft (24) and is in threaded connection with the transverse lead screw shaft (25); a grinding motor (28) is fixedly mounted on the transverse moving plate (27), and a replaceable grinding rod (29) is arranged at the driving shaft end of the grinding motor (28).

2. The on-line polishing device for an aluminum bar mold according to claim 1, characterized in that, The clamping mechanism includes a clamping mechanism mounting frame (3), a cross plate is provided at the top of the clamping mechanism mounting frame (3), a second motor (31) is fixedly mounted on the cross plate, the rotating shaft of the second motor (31) is a lead screw rotating shaft (33) and faces downward, a through guiding groove is opened in the middle of the inner side of the clamping mechanism mounting frame (3), a mold clamp (32) is slidably and guidingly arranged in the guiding groove, the tail of the mold clamp (32) passes through the guiding groove and a vertically through threaded hole is provided in the protruding part, and the lead screw rotating shaft (33) of the second motor (31) is in threaded through connection with the threaded hole at the tail end of the mold clamp (32).

3. An on-line grinding device for an aluminum bar mold according to claim 1, characterized in that, The sliding and guiding installation of the grinding mechanism mounting frame (2) on the chassis (1) specifically means that a guiding protrusion (11) is provided on the chassis (1), and the grinding mechanism mounting frame (2) is slidably and guidingly mounted on the guiding protrusion (11).

4. An on-line grinding device for an aluminum bar mold according to claim 2, characterized in that, The device is placed beside an aluminum bar mold conveyor belt (4), specifically, the mold clamp (32) of the device is located above the conveyor belt (4), and an aluminum bar mold placement table (41) is fixedly mounted on the conveyor belt (4).

5. An on-line grinding device for an aluminum bar mold according to claim 4, characterized in that, The mold clamp (32) is of a triangular clamping opening type with the opening facing downward, and the aluminum bar mold placement table (41) is of a triangular clamping opening type with the opening facing upward, and the triangular clamping openings cooperate with each other to clamp the mold tightly.

6. The on-line polishing device for an aluminum bar mold according to claim 1, characterized in that, A driving mechanism is arranged at the bottom side of the grinding mechanism mounting frame (2).

7. An on-line polishing device for an aluminum bar mold according to claim 6, characterized in that, The driving mechanism is an electric trolley (51), the electric trolley (51) is fixedly mounted on the bottom side of the grinding mechanism mounting frame (2), and its driving wheels are in contact with the chassis (1).

8. An on-line grinding device for an aluminum bar mold according to claim 6, characterized in that, The driving mechanism is a screw drive and includes a driving motor, the driving motor is fixed on the chassis (1), and its driving shaft is a screw shaft. A threaded hole is provided on the bottom side of the grinding mechanism mounting frame (2), and the threaded hole is threadedly connected to the driving shaft of the driving motor.

9. An on-line grinding device for an aluminum rod mold according to claim 1, characterized in that, The grinding mechanism mounting frame (2) is provided with a dust suction device, which is arranged outside the grinding motor (28) and the grinding rod (29), and is connected to an external dust removal device through a pipeline.

10. An on-line grinding device for an aluminum bar mold according to claim 1, characterized in that, The grinding rod (29) is connected to the driving shaft end of the grinding motor (28) via a quick-change chuck, and the quick-change chuck has a built-in anti-loosening locking mechanism. After the grinding rod (29) is installed in place, the grinding rod (29) is quickly fixed and reliably locked by rotating the locking ring or pressing the locking button.

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