Multi-axis kinematic structure for a sand polisher

Abstract

The utility model discloses a kind of multi-axis movable structures of sand polishing machine, it contains the bearing mechanism and a processing mechanism of being arranged on a base, bearing mechanism group includes a workpiece carrier, a rotating unit, a swing unit and a lifting unit, workpiece carrier is driven by rotating unit and rotates, and swing unit drives workpiece carrier to swing with X axis as center, and workpiece carrier is moved up and down along Z axis by lifting unit. Processing mechanism includes a main shaft, a longitudinal shift unit and a transverse shift unit, main shaft can drive a sand polishing wheel to rotate, and main shaft is moved forward and backward along Y axis by longitudinal shift unit, and main shaft is moved left and right along X axis by transverse shift unit, workpiece and sand polishing wheel multi-axis movement and rotation are driven by bearing mechanism and processing mechanism respectively, realize automated multidirectional processing, improve sand polishing accuracy.

Description

Technical Field

[0001] This utility model relates to sand polishing machines, and in particular to a multi-axis movable structure for a sand polishing machine. Background Technology

[0002] It is known that surface treatment of metal workpieces often involves polishing with chemical polishing solutions and abrasive polishing wheels. During abrasive polishing, the angle of the metal workpiece and its contact position with the abrasive polishing wheel need to be adjusted according to the processing parameters to complete the abrasive polishing and grinding according to the corresponding processing parameters. Therefore, a device that can adjust the relative position between the workpiece and the abrasive polishing wheel is required.

[0003] Traditional metal workpiece fixing devices have a multi-axis structure, which allows the metal workpiece to rotate omnidirectionally through the cooperation of multiple axes. However, this requires manual adjustment, leading to large deviations in processing position and affecting the accuracy of the metal workpiece. Currently, the materials used for polishing are mainly high-strength titanium alloys, and the stability of traditional fixing devices is no longer sufficient for titanium alloy workpieces. Although the industry uses polishing devices to fix the workpieces and uses highly corrosive abrasive polishing fluids for abrasive polishing, existing polishing devices only drive the processing along a single axis, which cannot meet the needs of multi-angle processing.

[0004] Therefore, the current need is to design equipment capable of multi-axis moving sand polishing operations to ensure the machining accuracy of high-strength titanium alloy and other high-strength corrosion-resistant material workpieces, and to cooperate with automated sand polishing wheel changing to achieve automated operation. This is the main problem that needs to be improved at present.

[0005] Therefore, how to improve the above-mentioned problems is the primary issue that this utility model aims to solve. Utility Model Content

[0006] The main purpose of this utility model is to provide a multi-axis movable structure for a sand polishing machine, in which the bearing mechanism and the processing mechanism cooperate to move in multiple axes to adjust the angle and position of contact between the workpiece and the sand polishing wheel, thereby achieving multi-directional processing and improving the processing precision.

[0007] To achieve the aforementioned objectives, the present invention adopts the following technical solution:

[0008] A multi-axis movable structure for a sand polishing machine includes:

[0009] A support mechanism, assembled on a base, for supporting a workpiece, the support mechanism includes,

[0010] A workpiece carrier is used to fix and support the workpiece.

[0011] A rotating unit is connected to the workpiece carrier to drive the workpiece carrier to rotate about a vertical axis relative to the base;

[0012] A swing unit, connected to the rotating unit, is used to drive the rotating unit and the workpiece carrier to swing together around the X-axis.

[0013] A lifting unit, connected to the swing unit, is used to drive the swing unit, the rotating unit, and the workpiece carrier to move up and down relative to the base along the Z-axis.

[0014] A processing mechanism, assembled on the base and located on one side of the support unit, is used to process the workpiece on the support mechanism. The processing mechanism includes,

[0015] A main shaft is set along the Y-axis and has a connection end for assembling a sand polishing wheel. The main shaft is driven by power to rotate around its central axis, thereby driving the sand polishing wheel to rotate.

[0016] A longitudinal translation unit, on which the spindle assembly is mounted, drives the spindle to move back and forth relative to the base along the Y-axis by means of the longitudinal translation unit;

[0017] A transverse unit is provided, and the longitudinal unit is mounted on the transverse unit. The transverse unit drives the longitudinal unit and the main shaft to move left and right relative to the base along the X-axis.

[0018] Preferably, the lifting unit has a stand perpendicular to the base, and two vertical guide rails are provided parallel to the Z-axis on the side of the stand. A slide block is slidably mounted on the two vertical guide rails. The slide block is connected to a mounting plate for mounting the swing unit. The slide block is driven by a first driving device to move the mounting plate up and down relative to the base along the Z-axis.

[0019] Preferably, the swing unit has a swing arm and a rotating shaft arranged along the X-axis of the lifting unit. The swing arm is composed of two arms connected vertically. The free end of one arm is connected to the rotating shaft, and the free end of the other arm is used to mount the rotating unit. The rotating shaft is driven by a second drive device to reciprocate along the axis, thereby causing the workpiece carrier on the rotating unit to swing relative to the base.

[0020] Preferably, the rotating unit has a third driving device, the driving end of which is provided with a connecting shaft extending along the Z-axis. The connecting shaft is fixed to the bottom of the workpiece carrier. The rotating driving device drives the connecting shaft to rotate, thereby causing the workpiece carrier to rotate.

[0021] Preferably, the transverse unit is provided with two transverse slide rails parallel to each other along the X-axis on the base, and a transverse seat for assembling the longitudinal unit is slidably mounted on the two transverse slide rails. The transverse seat is driven by a fourth drive device to move the longitudinal unit along the two transverse slide rails.

[0022] Preferably, the longitudinal movement unit has a longitudinal movement slide rail seat arranged along the Y-axis, on which a longitudinal movement seat is slidably mounted for assembling the main shaft, and a fifth drive device drives the longitudinal movement seat to move the main shaft along the Y-axis on the longitudinal movement slide rail seat.

[0023] Preferably, the base is vertically provided with a wall plate for enclosing a processing space on the base. The wall plate has an elongated elliptical hole along the X-axis, and the main shaft is provided with a baffle extending along the X-axis near the outer periphery of the assembly end. The assembly end passes through the elongated elliptical hole, and the baffle cooperates with the wall plate to cover the elongated elliptical hole.

[0024] Preferably, the supporting mechanism and the processing mechanism are arranged on the base with right-angled adjacent sides.

[0025] Preferably, a wheel changing mechanism and a wheel picking and placing mechanism are provided above the processing mechanism. The wheel changing mechanism is driven by power to move up and down along the Z-axis between the wheel picking and placing mechanism and the main shaft to transport the sand polishing wheel, so as to complete the exchange of sand polishing wheels between the wheel picking and placing mechanism and the main shaft.

[0026] The beneficial effects of this utility model are as follows: As can be seen from the above technical solution, this utility model has obvious advantages and beneficial effects compared with the prior art. It mainly achieves multi-axis movement and rotation of the bearing mechanism and the processing mechanism to adjust the relative position and relative angle of the workpiece and the sand polishing wheel, thereby realizing multi-angle and multi-directional sand polishing treatment of the workpiece surface. It can meet the multi-dimensional sand polishing needs and improve the sand polishing accuracy.

[0027] The above-mentioned objectives and advantages of this utility model can be readily understood from the following detailed description and accompanying drawings of the selected embodiments. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of the bearing mechanism of a preferred embodiment of the present invention.

[0030] Figure 3 This is a schematic diagram of the processing mechanism of a preferred embodiment of the present invention.

[0031] Figure 4 This is a partially enlarged schematic diagram of the spindle structure of the processing mechanism according to a preferred embodiment of the present invention.

[0032] Figure 5 This is a structural diagram of the preferred embodiment of the present invention, which includes a wheel-changing mechanism and a pick-and-place mechanism.

[0033] Base 100

[0034] Bearing mechanism 200

[0035] 300 processing units

[0036] Lifting Unit 1

[0037] Stand 11

[0038] Vertical guide rail 12

[0039] Slide 13

[0040] Mounting plate 14

[0041] First drive unit 15

[0042] Swing Unit 2

[0043] Swing arm 21

[0044] outrigger 211

[0045] Shaft 22

[0046] Second drive unit 23

[0047] Rotating unit 3

[0048] Third drive unit 31

[0049] Connecting shaft 32

[0050] Workpiece carrier 4

[0051] Spindle 5

[0052] Assembly terminal 51

[0053] baffle 52

[0054] Wall panel 53

[0055] Long oval aperture 54

[0056] Longitudinal translation unit 6

[0057] Longitudinal slide rail seat 61

[0058] Longitudinal sliding seat 62

[0059] Fifth drive unit 63

[0060] Transverse unit 7

[0061] Horizontal sliding rail 71

[0062] Transverse sliding seat 72

[0063] Fourth drive unit 73

[0064] Wheel changing mechanism 8

[0065] Pick-up and drop-off wheel mechanism 9 Detailed Implementation

[0066] Please see Figures 1 to 3 This is a preferred embodiment of the multi-axis movable structure of the sand polishing machine provided by this utility model, which mainly includes a base 100, a bearing mechanism 200, and a processing mechanism 300, wherein:

[0067] The supporting mechanism 200 is mounted on the base 100 to support a workpiece. The processing mechanism 300 is mounted on the base 100 and located on one side of the supporting mechanism 200 to process the workpiece on the supporting mechanism 200.

[0068] like Figure 2 As shown, the supporting mechanism 200 includes a lifting unit 1, a swinging unit 2, a rotating unit 3, and a workpiece carrier 4. The workpiece carrier 4 is used to support and fix the workpiece. The workpiece carrier 4 is mounted on the rotating unit 3, and the rotating unit 3 drives the workpiece carrier 4 to rotate about a vertical axis relative to the base 100. The rotating unit 3 is mounted on the swinging unit 2, and the swinging unit 2 drives the rotating unit 3 to swing around the workpiece carrier 4 about the X-axis. Furthermore, the swinging unit 2 is mounted on the lifting unit 1, and the lifting unit 1 drives the swinging unit 2, the rotating unit 3, and the workpiece carrier 4 to move up and down along the Z-axis relative to the base 100. Through the cooperation of the lifting unit 1, the swinging unit 2, and the rotating unit 3, multi-axis movement and rotation of the workpiece are achieved, and the relative position between the workpiece and the polishing wheel can be adjusted at multiple angles to meet the adjustment of different processing angles.

[0069] The lifting unit 1 has a stand 11 perpendicular to the base 100, and two vertical guide rails 12 parallel to the Z-axis are arranged on the side of the stand 11. A slide block 13 slides on the two vertical guide rails 12, and a mounting plate 14 is connected to the slide block 13 for mounting the swing unit 2. The slide block 13 is driven by a first driving device 15 to move the mounting plate 14 up and down relative to the base 100 along the Z-axis, thereby forming a driving structure that drives the swing unit 2, the rotating unit 3 and the workpiece carrier 4 to move smoothly up and down along the Z-axis, and can change the processing position of the workpiece along the Z-axis.

[0070] Continuing from the above, the swing unit 2 has a swing arm 21 and a rotating shaft 22 arranged along the X-axis on the lifting unit 1. In this embodiment, the rotating shaft 22 is assembled on the mounting plate 14 and its front end protrudes from the mounting plate 14. The swing arm 21 is composed of two arms 211 connected vertically, one of which has its free end connected to the front end of the rotating shaft 22, and the other arm 211 has its free end used to mount the rotating unit 3. The rotating shaft 22 is driven by a second driving device 23 to reciprocate along its axis, causing the swing arm 21 to reciprocate around the axis of the rotating shaft 22, thereby driving the workpiece carrier 4 on the rotating unit 3 to swing relative to the base 100, thereby changing the angle of the workpiece's surface to be processed relative to the top surface of the base 100, so as to perform multi-angle sand polishing on the workpiece.

[0071] The rotating unit 3 has a third driving device 31, and the driving end of the third driving device 31 is provided with a connecting shaft 32 extending along the Z-axis. The connecting shaft 32 is fixed to the bottom of the workpiece carrier 4. The third driving device 31 drives the connecting shaft 32 to rotate, thereby causing the workpiece carrier 4 to rotate, so as to change the relative position of each processing surface of the workpiece and the processing mechanism, and realize multi-face sand polishing of the workpiece.

[0072] It should be noted that the first drive device 15, the second drive device 23 and the third drive device 31 mentioned above are motors such as stepper motors, servo motors and geared motors that can achieve precise movement functions, and are not limited in this utility model.

[0073] See next Figure 3 As shown, the processing mechanism 300 includes a main spindle 5, a longitudinal movement unit 6, and a transverse movement unit 7. The main spindle 5 is arranged along the Y-axis, and its front end has a set of connecting ends 51 that are connected to a polishing wheel. The main spindle 5 is driven by a power source to rotate around its central axis, thereby driving the polishing wheel to rotate. The power source for the main spindle 5 is provided by a belt drive mechanism, a motor, etc., and is not limited in this utility model. The main spindle 5 is mounted on the longitudinal movement unit 6, which drives the main spindle 5 to move back and forth along the Y-axis relative to the base 100, thereby changing the pressure of the polishing wheel in contact with the workpiece surface to adjust the polishing depth. The longitudinal movement unit 6 is mounted on the transverse movement unit 7, which drives the longitudinal movement unit 6 and the main spindle 5 to move left and right along the X-axis relative to the base 100, thereby changing the position of the polishing wheel on the workpiece in the X-axis. Through the rotation of the main spindle 5, the Y-axis drive of the longitudinal movement unit 6, and the X-axis drive of the transverse movement unit 7, the sand polishing wheel can move along multiple axes to cooperate with the bearing mechanism, thereby realizing multi-directional and multi-angle sand polishing of the workpiece.

[0074] Further explanation: The transverse unit 7 is provided with two parallel transverse slide rails 71 along the X-axis on the base 100. A transverse seat 72 slides on the two transverse slide rails 71 for mounting the longitudinal unit 6. The transverse seat 72 is driven by a fourth drive device 73 to move the longitudinal unit 6 along the two transverse slide rails 71. The longitudinal unit 6 is mounted on the transverse seat 72 along the Y-axis via a longitudinal slide rail seat 61. A longitudinal seat 62 slides on the longitudinal slide rail seat 61 for mounting the spindle 5. A fifth drive device 63 drives the longitudinal seat 62 to move the spindle 5 along the Y-axis on the longitudinal slide rail seat 61. Specifically, the fourth drive device 73 and the fifth drive device 63 are preferably servo motors or stepper motors to precisely control the position of the spindle 5 along the X and Y axes, achieving high-precision machining, but this is not limited to these features in this invention.

[0075] In this embodiment, as Figure 1 and Figure 4 As shown, the supporting mechanism 200 and the processing mechanism 300 are preferably arranged on the base 100 with their adjacent sides at right angles. The base 100 is vertically provided with a wall plate 53, which is perpendicular to the mounting plate 14 of the lifting unit 1. The wall plate 53 and the mounting plate 14 can enclose a processing space on the base 100, effectively blocking the splashed polishing liquid and facilitating the centralized collection of polishing liquid.

[0076] The wall panel 53 has an elongated elliptical hole 54 along the X-axis, and the main shaft 5 has a baffle 52 extending along the X-axis near the outer periphery of the assembly end 51. The assembly end 51 passes through the elongated elliptical hole 54, and the baffle 52 cooperates with the wall panel 53 to shield the elongated elliptical hole 54, so as to block the abrasive polishing liquid splashed during the abrasive polishing process, and to limit the movement stroke of the main shaft 5 along the X-axis by the elongated elliptical hole 54, thereby shortening the time for the abrasive polishing wheel to align and process the position.

[0077] Furthermore, such as Figure 5 As shown, a wheel changing mechanism 8 and a wheel picking and placing mechanism 9 are provided above the processing mechanism 300. The wheel changing mechanism 8 is driven by power to move up and down along the Z-axis between the wheel picking and placing mechanism 9 and the main shaft 5 to transport the sand polishing wheel, so as to complete the exchange of sand polishing wheels between the wheel picking and placing mechanism 9 and the main shaft 5. There is no need for manual wheel changing, thereby realizing automated continuous sand polishing operation.

[0078] Please refer to the utility model composed of the above-mentioned components. Figure 1As shown, in practical applications, the supporting mechanism 200 uses the lifting unit 1 to drive the workpiece carrier 4 to move along the Z-axis to a suitable position, fixing the workpiece on the workpiece carrier 4. During sand polishing, the lifting unit 1 adjusts the relative position of the workpiece's surface to be processed and the sand polishing wheel along the Z-axis, and the swing unit 2 changes the tilt angle of the workpiece's surface to be processed, thereby adjusting the contact angle between the sand polishing wheel and the workpiece. The rotating unit 3 rotates the workpiece to adjust the relative surfaces of the workpiece and the sand polishing wheel. The processing mechanism 300 drives the sand polishing wheel to rotate with the spindle 5, and the longitudinal translation unit 6 moves the spindle along the Y-axis to adjust the contact pressure between the sand polishing wheel and the workpiece. The transverse translation unit 7 moves the spindle 5 along the X-axis, causing the sand polishing wheel to move along the X-axis to polish the workpiece. After one side of the workpiece is processed, the rotating unit 3 rotates the workpiece carrier 4 again to switch the workpiece's processing surface and continue processing. This cycle continues until the workpiece is sand polished. As shown in Figure 5, during the sand polishing process, the new sand polishing wheel picked up by the wheel picking mechanism 9 can also be transported by the wheel changing mechanism 8 to the spindle 5 of the processing mechanism 300 and exchanged with the old sand polishing wheel to ensure the sand polishing accuracy.

[0079] In summary, the multi-axis movable structure of the sand polishing machine provided by this utility model can achieve the following improvements:

[0080] First, it enables automated multi-dimensional sand polishing. The bearing mechanism of this invention can drive the workpiece to move up and down along the Z-axis, swing around the X-axis and rotate, while the processing mechanism can drive the sand polishing wheel to rotate, move back and forth along the Y-axis and move left and right along the X-axis, realizing automated multi-axis movement of the workpiece and the sand polishing wheel and their mutual cooperation. This allows for adjustment of the relative position and angle between the workpiece and the sand polishing wheel, enabling multi-angle and multi-directional sand polishing of the workpiece surface, meeting the complex multi-dimensional sand polishing processing requirements.

[0081] Secondly, it improves the precision of sand polishing. This utility model realizes the automatic adjustment of the workpiece's processing position, which reduces human error compared to the traditional manual adjustment method, and ensures the accurate relative position of the workpiece and the sand polishing wheel, thereby improving the polishing precision.

[0082] The above embodiments are disclosed only to illustrate the present utility model and are not intended to limit the present utility model. Any substitution of equivalent components should still fall within the scope of the present utility model.

[0083] In summary, this invention enables those skilled in the art to understand that it can indeed achieve the aforementioned objectives, and thus complies with the provisions of the Patent Law. Therefore, this application is filed in accordance with the law.

Claims

1. A multi-axis movable structure for a sand polishing machine, characterized in that, It includes: A support mechanism, assembled on a base, for supporting a workpiece, the support mechanism includes, A workpiece carrier is used to fix and support the workpiece. A rotating unit is connected to the workpiece carrier to drive the workpiece carrier to rotate about a vertical axis relative to the base; A swing unit, connected to the rotating unit, is used to drive the rotating unit and the workpiece carrier to swing together around the X-axis. A lifting unit, connected to the swing unit, is used to drive the swing unit, the rotating unit, and the workpiece carrier to move up and down relative to the base along the Z-axis. A machining mechanism, assembled on the base and located on one side of the supporting mechanism, is used to process the workpiece on the supporting mechanism. The machining mechanism includes, A main shaft is set along the Y-axis and has a connection end for assembling a sand polishing wheel. The main shaft is driven by power to rotate around its central axis, thereby driving the sand polishing wheel to rotate. A longitudinal translation unit, on which the spindle assembly is mounted, drives the spindle to move back and forth relative to the base along the Y-axis by means of the longitudinal translation unit; A transverse unit is provided, and the longitudinal unit is mounted on the transverse unit. The transverse unit drives the longitudinal unit and the main shaft to move left and right relative to the base along the X-axis.

2. The multi-axis movable structure of the sand polishing machine as described in claim 1, characterized in that, The lifting unit has a stand perpendicular to the base. Two vertical guide rails are provided on the side of the stand along the Z-axis. A slide block is slidably mounted on the two vertical guide rails. The slide block is connected to a mounting plate for mounting the swing unit. The slide block is driven by a first driving device to move the mounting plate up and down relative to the base along the Z-axis.

3. The multi-axis movable structure of the sand polishing machine as described in claim 1, characterized in that, The swing unit has a swing arm and a rotating shaft arranged along the X-axis of the lifting unit. The swing arm is composed of two arms connected vertically. The free end of one arm is connected to the rotating shaft, and the free end of the other arm is used to install the rotating unit. The rotating shaft is driven by a second drive device to reciprocate along the axis, thereby causing the workpiece carrier on the rotating unit to swing relative to the base.

4. The multi-axis movable structure of the sand polishing machine as described in claim 1, characterized in that, The rotating unit has a third driving device. The driving end of the third driving device is provided with a connecting shaft extending along the Z-axis. The connecting shaft is fixed to the bottom of the workpiece carrier. The rotating driving device drives the connecting shaft to rotate, thereby causing the workpiece carrier to rotate.

5. The multi-axis movable structure of the sand polishing machine as described in claim 1, characterized in that, The transverse unit is provided with two transverse slide rails parallel to each other along the X-axis on the base. A transverse seat for assembling the longitudinal unit is slidably mounted on the two transverse slide rails. The transverse seat is driven by a fourth drive device to move the longitudinal unit along the two transverse slide rails.

6. The multi-axis movable structure of the sand polishing machine as described in claim 1, characterized in that, The longitudinal movement unit has a longitudinal movement slide rail seat arranged along the Y-axis. A longitudinal movement seat is slidably mounted on the longitudinal movement slide rail seat for assembling the main shaft. A fifth drive device drives the longitudinal movement seat to move the main shaft along the Y-axis on the longitudinal movement slide rail seat.

7. The multi-axis movable structure of the sand polishing machine as described in claim 1, characterized in that, The base is vertically provided with a wall panel for enclosing a processing space on the base. The wall panel has an elongated elliptical hole along the X-axis. The main shaft is provided with a baffle extending along the X-axis near the outer periphery of the assembly end. The assembly end passes through the elongated elliptical hole, and the baffle cooperates with the wall panel to cover the elongated elliptical hole.

8. The multi-axis movable structure of the sand polishing machine as described in claim 1, characterized in that, The supporting mechanism and the processing mechanism are arranged on the base with their adjacent sides at right angles.

9. The multi-axis movable structure of the sand polishing machine as described in claim 1, characterized in that, The processing mechanism is equipped with a wheel changing mechanism and a wheel picking and placing mechanism above it. The wheel changing mechanism is driven by power to move up and down along the Z-axis between the wheel picking and placing mechanism and the main shaft to transport the polishing wheel, so as to complete the exchange of sand polishing wheels between the wheel picking and placing mechanism and the main shaft.

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