Quick-change tooling for polishing workpieces

Abstract

The application discloses a quick-change tool for workpiece polishing, comprising a rack with a first positioning part, and an adapter block for mounting a workpiece, the adapter block having a second positioning part, the second positioning part being connected with the first positioning part to position the adapter block on the rack, and the adapter block being detachable from the rack in a first direction. In the application, the adapter block and the rack are precisely positioned by the first and second positioning parts, so that the robot can accurately grasp the workpiece. The adapter block is detachable from the rack in the first direction, which reduces the volume of the tool for clamping the workpiece when the polishing path is executed, avoids interference between the adapter block and the polishing cloth wheel during polishing, and enables the polishing path to be completely executed.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a quick-change tooling for workpiece polishing. Background Technology

[0002] In robotic polishing, the robot grips and holds the workpiece in a fixture to execute the polishing path. After the workpiece is placed manually, the robot continuously grips the fixture to increase the speed of batch polishing.

[0003] However, the above-mentioned batch polishing process has the following drawbacks: First, the polishing robot grips the fixture at fixed points each time, but the workpiece cannot be precisely positioned, causing the robot to be unable to grip it accurately every time; Second, different polishing paths are required for different workpieces. Since the polishing robot cannot automatically identify different workpieces, different polishing paths need to be manually switched, and automatic switching cannot be achieved; Third, the fixture for holding the workpiece needs to be connected to the robot and is relatively large, causing interference between the fixture and the polishing wheel when executing the polishing path, making it impossible to complete the polishing path. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to propose a quick-change tooling for workpiece polishing, which solves the problems in the prior art such as the robot's inability to accurately grasp the workpiece, the inability to automatically identify the workpiece type, and the inability to completely execute the polishing path.

[0005] The technical solution adopted by this invention to solve its technical problem is a quick-change tooling for workpiece polishing, comprising:

[0006] A platform, the platform having a first positioning part;

[0007] An adapter block for mounting a workpiece, the adapter block having a second positioning part, the second positioning part being connected to the first positioning part to position the adapter block on the stand, and the adapter block being detachable from the stand in a first direction.

[0008] Furthermore, the first positioning part includes a first groove on which the platform is formed, and the adapter block is engaged with the first groove.

[0009] Furthermore, the first groove includes two first sidewalls and a first bottom surface;

[0010] The second positioning part includes two limiting grooves formed on the adapter block, with each of the first sidewalls extending into one of the limiting grooves.

[0011] Furthermore, the second positioning part also includes a second groove formed on the adapter block. The second groove includes two second sidewalls and a second bottom surface. The first bottom surface extends into the second groove and is in contact with the second bottom surface.

[0012] Furthermore, the second bottom surface is provided with a positioning protrusion, and the first bottom surface is provided with a positioning groove, wherein the positioning protrusion is embedded in the positioning groove.

[0013] Furthermore, a notch is provided on one of the two second sidewalls;

[0014] The platform is also equipped with an anti-detachment block, which is located in the notch and has a hook portion.

[0015] The adapter block is also provided with a locking pin, which slides relative to the anti-detachment block in a second direction to retract or enter the hook; the locking pin enters or retracts from the hook to lock or unlock the adapter block relative to the platform in a first direction.

[0016] Furthermore, the locking pin can slide relative to the adapter block in a second direction.

[0017] Furthermore, the locking pin is fixedly connected to the adapter block, and the adapter block can move relative to the anti-detachment block in the second direction.

[0018] Furthermore, the first direction is perpendicular to the second direction.

[0019] Furthermore, the adapter block is provided with at least one mark for distinguishing workpieces.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] (1) The adapter block and the frame are precisely positioned through the first positioning part and the second positioning part to enable the robot to accurately grasp the workpiece.

[0022] (2) The adapter block can be detached from the frame along the first direction, which reduces the volume of the fixture that holds the workpiece when executing the polishing path, and avoids interference between the adapter block and the polishing cloth wheel during polishing, so as to complete the polishing path.

[0023] (3) The positioning protrusion fits into the positioning groove to improve the positioning accuracy of the adapter block.

[0024] (4) An anti-detachment block and a locking pin are provided to lock and unlock the adapter block, preventing it from separating from the stand.

[0025] (5) The proximity switch is triggered by one or more triggers. The proximity switch sends a signal. After receiving the signal, the robot can determine the corresponding workpiece type based on the number and / or position of the triggered proximity switches, and then automatically switch the corresponding polishing path to replace manual switching of the polishing program, thereby improving the efficiency and automation when polishing different types of workpieces. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the rapid tooling structure in the embodiment;

[0027] Figure 2 This is the main view of the rapid tooling in the embodiment;

[0028] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0029] Figure 4 for Figure 3 Sectional view at point BB;

[0030] Figure 5 This is a schematic diagram of the platform structure in the embodiment;

[0031] Figure 6 This is a schematic diagram of the adapter block from one perspective in the embodiment;

[0032] Figure 7 This is a structural schematic diagram of the adapter block from another perspective in the embodiment;

[0033] In the picture:

[0034] 100, stand; 110, first groove; 111, first bottom surface; 111a, positioning groove; 112, first side wall;

[0035] 200, Adapter block; 210, Limiting groove; 220, Second groove; 221, Second bottom surface; 221a, Positioning protrusion; 222, Second side wall; 222a, Notch; 230, Locking pin; 240, Trigger; 250, Proximity switch; 260, Anti-detachment block; 261, Hook. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] Please refer to Figures 1-7 This invention discloses a quick-change tooling for workpiece polishing, comprising:

[0038] A test stand 100, wherein the test stand 100 has a first positioning part;

[0039] The adapter block 200 is used to install the workpiece. The adapter block 200 has a second positioning part, which is connected to the first positioning part to position the adapter block 200 on the stand 100. The adapter block 200 can be disengaged from the stand 100 in a first direction.

[0040] First, it should be noted that the positions of the platform 100 and the robot are fixed. Therefore, as long as the position of the adapter block 200 relative to the platform 100 is fixed, the positions of the robot and the adapter block 200 are also fixed.

[0041] like Figure 1 As shown, the workpiece is first installed on the adapter block 200, and then the adapter block 200 is positioned on the frame 100 by the first positioning part and the second positioning part, so that the workpiece is positioned in the preset position. Then the robot grabs the adapter block 200 and moves it away from the frame 100 along the first direction. Finally, the workpiece on the adapter block 200 executes the preset polishing path under the drive of the robot.

[0042] In this application, the adapter block 200 and the stand 100 are precisely positioned by the first positioning part and the second positioning part, so as to enable the robot to accurately grasp the workpiece; at the same time, since the adapter block 200 can be disengaged from the stand 100 along the first direction, the robot only grasps the adapter block 200 and the workpiece mounted on the adapter block 200 to perform the polishing path together, while the stand 100 is left in place, reducing the volume of the tooling for holding the workpiece when performing the polishing path, thereby avoiding interference between the adapter block 200 and the polishing cloth wheel during polishing, so as to complete the polishing path.

[0043] Furthermore, the first positioning part includes a first groove 110 on which the platform 100 is formed, and the adapter block 200 is engaged with the first groove 110.

[0044] A first groove 110 is provided on the stand 100. When the adapter block 200 is engaged with the first groove 110, the adapter block 200 can be initially positioned.

[0045] Furthermore, the first groove 110 includes two first sidewalls 112 and a first bottom surface 111;

[0046] The second positioning part includes two limiting grooves 210 formed on the adapter block 200, and each of the first sidewalls 112 extends into one of the limiting grooves 210.

[0047] As shown in the figure, the distance between the two first sidewalls 112 gradually decreases from high to low, so that the first sidewalls 112 form a guide surface; during the process of the adapter block 200 being inserted, the limiting groove 210 gradually comes into contact with the first sidewall 112 and finally abuts against the first bottom surface 111. The function of setting the guide surface is to make the insertion process of the adapter block 200 smoother and improve the positioning accuracy.

[0048] Furthermore, the second positioning part also includes a second groove 220 formed on the adapter block 200. The second groove 220 includes two second sidewalls 222 and a second bottom surface 221. The first bottom surface 111 extends into the second groove 220 and is in contact with the second bottom surface 221.

[0049] The second groove 220 is provided so that the first bottom surface 111 of the first groove 110 can extend into the second groove 220 and fit against the second bottom surface 221, further enhancing the positioning accuracy of the adapter block 200.

[0050] Furthermore, the second bottom surface 221 is provided with a positioning protrusion 221a, and the first bottom surface 111 is provided with a positioning groove 111a, wherein the positioning protrusion 221a is embedded in the positioning groove 111a.

[0051] like Figure 4 , Figure 5 and Figure 7 As shown, the adapter block 200 is provided with a positioning pin, the peripheral wall of which protrudes from the second bottom surface 221, thereby forming a positioning protrusion 221a on the second bottom surface 221; the first bottom surface 111 is recessed downward to form a positioning groove 111a, and the positioning protrusion 221a fits into the positioning groove 111a. This firstly restricts the adapter block 200 from moving downward, and also restricts the lateral movement of the adapter block 200, ultimately achieving precise positioning of the adapter block 200 in the preset position of the platform 100.

[0052] Furthermore, a notch 222a is provided on one of the two second sidewalls 222;

[0053] The platform 100 is also provided with an anti-detachment block 260, which is located in the notch 222a and has a hook 261.

[0054] The adapter block 200 is also provided with a locking pin 230, which slides relative to the anti-detachment block 260 in a second direction to exit or enter the hook 261; the locking pin 230 enters or exits the hook 261 to lock or unlock the adapter block 200 relative to the platform 100 in a first direction.

[0055] A hook 261 is provided on the anti-detachment block 260 to cooperate with the locking pin 230. When the locking pin 230 is in the hook 261, the hook 261 can hook the locking pin 230 to prevent the locking pin 230 from moving in the first direction, thereby locking the movement of the adapter block 200 in the first direction. Conversely, when the locking pin 230 disengages from the hook 261, the adapter block 200 can move in the first direction to disengage from the platform 100.

[0056] Therefore, by setting the anti-detachment block 260 and the locking pin 230, the adapter block 200 can be locked and unlocked to prevent the adapter block 200 from separating from the stand 100.

[0057] Furthermore, the locking pin 230 can slide relative to the adapter block 200 in a second direction.

[0058] Before the adapter block 200 is detached from the platform 100, the locking pin 230 slides relative to the adapter block 200 in the second direction, thereby causing the locking block to slide out of the hook 261, releasing the hook 261 and the locking pin 230 from restricting the adapter block 200. After that, the robot can drive the adapter block 200 to detach from the platform 100 in the first direction.

[0059] Furthermore, the locking pin 230 is fixedly connected to the adapter block 200, and the adapter block 200 can move relative to the anti-detachment block 260 in the second direction.

[0060] This application may also provide another implementation scheme, such as Figure 3 As shown, the locking pin 230 is fixedly connected to the adapter block 200, and the thickness of the platform 100 is less than the width of the limiting groove 210 and the second groove 220, so that the adapter block 200 can move a certain distance along the second direction, that is, the thickness direction of the platform 100, thereby driving the locking pin 230 to exit the hook 261, so that the adapter block 200 can be separated from the platform 100 along the first direction.

[0061] More importantly, when the locking pin 230 is fixed to the adapter block 200, during the process of the locking pin 230 contacting the hook 261 until the locking pin 230 completely abuts against the hook 261, the adapter block 200 is driven by the locking pin 230 and continuously adjusts its position, further correcting the position of the adapter block 200 and achieving precise positioning of the adapter block 200.

[0062] Furthermore, the first direction is perpendicular to the second direction.

[0063] Specifically, assuming the working surface is horizontal, the first direction is vertical, i.e., the depth direction of the first groove 110; the second direction is horizontal, i.e., the thickness direction of the platform 100. By setting the first direction and the second direction to be perpendicular, the transition block 200 will not change its position in the other direction when it moves along the first direction or the second direction, and the movements in the two directions will not interfere with each other.

[0064] Furthermore, the adapter block 200 is provided with at least one identifier for distinguishing workpieces.

[0065] Furthermore, such as Figure 6 As shown, the adapter block 200 is also equipped with multiple proximity switches 250 and multiple triggers 240, with the number and position of the triggers 240 corresponding one-to-one with those of the proximity switches 250. One or more triggers 240 can trigger the proximity switches 250, causing them to emit signals. Upon receiving the signals, the robot can determine the corresponding workpiece type based on the number and / or position of the triggered proximity switches 250, and then automatically switch to the corresponding polishing path, replacing manual switching of the polishing program and improving efficiency and automation when polishing different types of workpieces.

[0066] Specifically, in this embodiment, four proximity switches 250 and four triggers 240 are provided on the adapter block 200. The triggers 240 are configured with flat end fasteners, which are threadedly connected to the adapter block 200. The distance between the flat end fasteners and the proximity switches 250 can be adjusted by rotating the flat end fasteners to trigger or not trigger the proximity switches 250.

[0067] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0068] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0069] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0070] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A quick-change tooling for workpiece polishing, characterized in that, include: A platform, the platform having a first positioning part; An adapter block for mounting a workpiece, the adapter block having a second positioning part, the second positioning part being connected to the first positioning part to position the adapter block on the stand, and the adapter block being detachable from the stand in a first direction; The platform is also equipped with an anti-detachment block, and the adapter block is also equipped with a locking pin. The locking pin is fixedly connected to the adapter block, and the adapter block can move relative to the anti-detachment block in the second direction; The first direction is perpendicular to the second direction; The adapter block is provided with at least one mark for distinguishing workpieces.

2. The quick-change tooling for workpiece polishing according to claim 1, characterized in that, The first positioning part includes a first groove on which the platform is formed, and the adapter block is engaged in the first groove.

3. A quick-change tooling for workpiece polishing according to claim 2, characterized in that, The first groove includes two first sidewalls and a first bottom surface; The second positioning part includes two limiting grooves formed on the adapter block, with each of the first sidewalls extending into one of the limiting grooves.

4. A quick-change tooling for workpiece polishing according to claim 3, characterized in that, The second positioning part further includes a second groove formed on the adapter block. The second groove includes two second sidewalls and a second bottom surface. The first bottom surface extends into the second groove and is in contact with the second bottom surface.

5. A quick-change tooling for workpiece polishing according to claim 4, characterized in that, The second bottom surface is provided with a positioning protrusion, and the first bottom surface is provided with a positioning groove, wherein the positioning protrusion is embedded in the positioning groove.

6. A quick-change tooling for workpiece polishing according to claim 4, characterized in that, One of the two second sidewalls has a notch; The anti-detachment block is located in the notch, and the anti-detachment block is provided with a hook portion; The locking pin slides relative to the anti-detachment block in a second direction to retract or enter the hook; the locking pin enters or retracts from the hook to lock or unlock the adapter block relative to the platform in a first direction.

7. A quick-change tooling for workpiece polishing according to claim 6, characterized in that, The locking pin can slide relative to the adapter block in a second direction.

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