Workpiece turnover tooling for a polishing machine and a polishing machine

Abstract

The utility model relates to a workpiece turnover tool of polishing machine and polishing machine, including work table, be equipped with first rotation positioning mechanism and second rotation positioning mechanism on the work table, first rotation positioning mechanism and second rotation positioning mechanism opposite inboard respectively be equipped with first locating piece and second locating piece, first rotation positioning mechanism can drive first locating piece and make single week reciprocating rotation, second locating piece rotatably set up in second rotation positioning mechanism, first locating piece and second locating piece coaxial arrangement, and first locating piece and second locating piece are used to form positioning to the both ends of workpiece respectively, be equipped with the crossbeam of extending to first locating piece direction on second locating piece, be equipped with the cylinder clamping mechanism for clamping workpiece on the crossbeam. The utility model not only can realize two -way synchronous positioning and space layout optimization, can also efficiently complete turnover operation, and possess anti -loose function.

Description

Technical Field

[0001] This utility model relates to the field of electrical tools, and in particular to a workpiece flipping fixture for a polishing machine and the polishing machine itself. Background Technology

[0002] In the field of machining, workpiece polishing often requires multi-faceted processing. Traditional polishing machines mostly use manual flipping or a single rotating fixture to position the workpiece, which has the following technical drawbacks:

[0003] First, manual flipping is inefficient and makes it difficult to guarantee positioning accuracy after flipping, affecting polishing consistency. Second, most existing rotary fixtures use single-end drive, and radial runout is easily generated when the other end of the workpiece rotates freely, resulting in ripples on the polished surface. Third, complex workpieces (such as irregularly shaped parts and long shafts) lack effective clamping protection during flipping and are prone to displacement due to centrifugal force. Finally, cylinder clamping mechanisms are usually fixed on the worktable, occupying a lot of space and affecting rotational balance. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a workpiece flipping fixture for a polishing machine and a polishing machine, which can not only achieve bidirectional synchronous positioning and spatial layout optimization, but also efficiently complete the flipping operation and has an anti-loosening function.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A workpiece flipping fixture for a polishing machine includes a worktable. The worktable is provided with a first rotary positioning mechanism and a second rotary positioning mechanism. The first rotary positioning mechanism and the second rotary positioning mechanism are respectively provided with a first positioning component and a second positioning component on their inward facing sides. The first rotary positioning mechanism can drive the first positioning component to perform a single-turn reciprocating rotary motion. The second positioning component is rotatably mounted on the second rotary positioning mechanism. The first positioning component and the second positioning component are coaxially arranged, and the first positioning component and the second positioning component are respectively used to position the two ends of the workpiece. The second positioning component is provided with a crossbeam extending towards the first positioning component, and the crossbeam is provided with a cylinder clamping mechanism for clamping the workpiece.

[0007] Furthermore, the cylinder clamping mechanism includes a clamping assembly and a cylinder assembly. The clamping assembly includes a movable clamp and a fixed clamp fixedly connected to the crossbeam. The cylinder assembly includes a cylinder body and a piston rod disposed within the cylinder body. The cylinder body is fixedly connected to the fixed clamp. One end of the piston rod extends out of the cylinder body and is connected to the movable clamp. The clamping faces of the movable clamp and the fixed clamp are arranged opposite to each other. When the cylinder clamping mechanism is working, the workpiece is clamped between the movable clamp and the fixed clamp.

[0008] Furthermore, the shape of the jaws of the movable and fixed clamps is adapted to the central contour of the workpiece.

[0009] Furthermore, the cylinder assembly also includes an air source and a retractable, wound air pipe 47 connecting the air source and the cylinder body 44.

[0010] Furthermore, the first rotary positioning mechanism includes a CNC motor for controlling the first positioning member to perform a single-cycle reciprocating rotary motion.

[0011] Furthermore, the worktable is provided with a V-groove slide rail, and both the first rotary positioning mechanism and the second rotary positioning mechanism are provided with V-shaped sliders that slide in cooperation with the V-groove slide rail. Both the first rotary positioning mechanism and the second rotary positioning mechanism can be locked onto the V-groove slide rail by bolts.

[0012] Furthermore, the worktable is a bidirectional sliding worktable, which can move in the left and right directions and in the front and back directions.

[0013] A polishing machine includes the aforementioned workpiece flipping fixture and an abrasive belt mechanism disposed on the rear side of the worktable. The abrasive belt mechanism includes a driving wheel, two driven wheels, and an abrasive belt sleeved on the driving wheel and the two driven wheels. The two driven wheels and the driving wheel are arranged in a triangular configuration, and the transverse working surface of the abrasive belt located between the two driven wheels forms a surface contact grinding fit with the outer surface of the workpiece.

[0014] Furthermore, the two driven wheels are arranged in a right-angled triangle with the driving wheel, the two driven wheels are arranged longitudinally and located between the driving wheel and the worktable, and the axis of the driving wheel is flush with the axis of the driven wheel that is higher in position among the two driven wheels.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] First, bidirectional synchronous positioning: Through the coaxial design of the first and second rotary positioning mechanisms, and in conjunction with the end positioning of the first and second positioning components, the workpiece is subjected to synchronous force at both ends during rotation, eliminating radial runout.

[0017] Second, optimized spatial layout: The cylinder clamping mechanism is integrated into the beam extension structure of the second positioning component, thereby saving workbench space and balancing the rotating counterweight to avoid eccentric vibration.

[0018] Third, efficient flipping operation: The single-cycle reciprocating motion of the first rotary positioning mechanism, combined with the linkage control of the cylinder clamping mechanism, can realize the automatic flipping and polishing of the workpiece, thus achieving high efficiency.

[0019] Fourth, anti-loosening guarantee: The cylinder clamping mechanism continuously applies radial clamping force during rotation to overcome the risk of workpiece displacement caused by centrifugal force. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a polishing machine according to the present invention.

[0021] Figure 2 This is a cross-sectional schematic diagram of a polishing machine according to the present invention.

[0022] Figure 3 This is a cross-sectional schematic diagram of a polishing machine according to the present invention.

[0023] Figure 4 This is an enlarged schematic diagram of the cylinder clamping mechanism in this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.

[0025] like Figures 1 to 4 As shown in the embodiment of this utility model, a workpiece flipping fixture for a polishing machine includes a worktable 1. The worktable 1 is provided with a first rotary positioning mechanism 2 and a second rotary positioning mechanism 3. The first rotary positioning mechanism 2 and the second rotary positioning mechanism 3 are respectively provided with a first positioning element 21 and a second positioning element 31 facing each other on their inner sides. The first rotary positioning mechanism 2 can drive the first positioning element 21 to perform a single-turn reciprocating rotary motion. The second positioning element 31 is rotatably disposed on the second rotary positioning mechanism 3. The first positioning element 21 and the second positioning element 31 are coaxially disposed, and the first positioning element 21 and the second positioning element 31 are respectively used to position the two ends of the workpiece. The second positioning element 31 is provided with a crossbeam 32 extending towards the first positioning element 21. The crossbeam 32 is provided with a cylinder clamping mechanism 4 for clamping the workpiece.

[0026] As described above, the cylinder clamping mechanism 4 includes a clamping assembly 41 and a cylinder assembly 42. The clamping assembly 41 includes a movable clamp 43 and a fixed clamp 44 fixedly connected to the crossbeam 32. The cylinder assembly 42 includes a cylinder body 45 and a piston rod 46 disposed in the cylinder body 45. The cylinder body 45 is fixedly connected to the fixed clamp 44. One end of the piston rod 46 extends out of the cylinder body 45 and is connected to the movable clamp 43. The clamping face of the movable clamp 43 is disposed opposite to the clamping face of the fixed clamp 44. When the cylinder clamping mechanism is working, the workpiece is clamped between the movable clamp 43 and the fixed clamp 44.

[0027] As described above, the jaw shapes of the movable clamp 46 and the fixed clamp 42 are adapted to the central contour of the workpiece.

[0028] As described above, the cylinder assembly 42 also includes an air source (not shown in the figure) and a retractable spiral vent pipe 47 connecting the air source and the cylinder body 44.

[0029] As described above, the first rotary positioning mechanism 2 includes a CNC motor 22 for controlling the first positioning member 21 to perform a single-cycle reciprocating rotary motion.

[0030] As described above, the workbench 1 is provided with a V-groove slide rail 11, and the first rotary positioning mechanism 2 and the second rotary positioning mechanism 3 are both provided with V-shaped sliders 23 and 33 that slide in cooperation with the V-groove slide rail 11. The first rotary positioning mechanism 2 and the second rotary positioning mechanism 3 can be locked onto the V-groove slide rail 11 by bolts.

[0031] As described above, the worktable 1 is a bidirectional sliding worktable, which can move in the left and right directions and in the front and back directions.

[0032] This utility model also provides a polishing machine, such as Figures 1 to 4 As shown, the workpiece flipping fixture mentioned above and the sanding belt mechanism 5 set on the rear side of the worktable 1 are included. The sanding belt mechanism 5 includes a driving wheel 51, two driven wheels 52 and a sanding belt 53 sleeved on the driving wheel 51 and the two driven wheels 52. The two driven wheels 52 and the driving wheel 51 are arranged in a triangle. The transverse working surface of the sanding belt 53 located between the two driven wheels 52 forms a surface contact grinding fit with the outer surface of the workpiece.

[0033] As described above, the two driven wheels 52 and the driving wheel 51 are arranged in a right-angled triangle. The two driven wheels 52 are arranged longitudinally and located between the driving wheel 51 and the worktable 1. The axis of the driving wheel 51 is flush with the axis of the driven wheel that is higher in position among the two driven wheels 52.

[0034] The workpiece positioning and fixing operation is as follows: After placing both ends of the workpiece on the first positioning component 21 and the second positioning component 31, the workpiece is positioned. The workpiece is then clamped by the cylinder clamping mechanism 4 set on the crossbeam 32, thus achieving the positioning and fixing of the workpiece.

[0035] The above description is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the scope of the present utility model patent application and the description of the utility model shall still fall within the scope of the present utility model patent.

Claims

1. A workpiece flipping fixture for a polishing machine, comprising a worktable, characterized in that, The worktable is provided with a first rotary positioning mechanism and a second rotary positioning mechanism. The first rotary positioning mechanism and the second rotary positioning mechanism are respectively provided with a first positioning component and a second positioning component on their inner sides facing each other. The first rotary positioning mechanism can drive the first positioning component to perform a single-turn reciprocating motion. The second positioning component is rotatably mounted on the second rotary positioning mechanism. The first positioning component and the second positioning component are coaxially arranged, and the first positioning component and the second positioning component are respectively used to position the two ends of the workpiece. The second positioning component is provided with a crossbeam extending towards the first positioning component. The crossbeam is provided with a cylinder clamping mechanism for clamping the workpiece.

2. The workpiece flipping fixture for a polishing machine according to claim 1, characterized in that, The cylinder clamping mechanism includes a clamping assembly and a cylinder assembly. The clamping assembly includes a movable clamp and a fixed clamp fixedly connected to a crossbeam. The cylinder assembly includes a cylinder body and a piston rod disposed within the cylinder body. The cylinder body is fixedly connected to the fixed clamp. One end of the piston rod extends out of the cylinder body and is connected to the movable clamp. The clamping faces of the movable clamp and the fixed clamp are arranged opposite to each other. When the cylinder clamping mechanism is working, the workpiece is clamped between the movable clamp and the fixed clamp.

3. The workpiece flipping fixture for a polishing machine according to claim 2, characterized in that, The shapes of the jaws of the movable and fixed clamps are adapted to the central contour of the workpiece.

4. The workpiece flipping fixture for a polishing machine according to claim 2 or 3, characterized in that, The cylinder assembly also includes an air source and a retractable spiral vent pipe connecting the air source and the cylinder body.

5. The workpiece flipping fixture for a polishing machine according to claim 1, characterized in that, The first rotary positioning mechanism includes a CNC motor for controlling the first positioning member to perform a single-cycle reciprocating rotary motion.

6. The workpiece flipping fixture for a polishing machine according to claim 1, characterized in that, The worktable is equipped with a V-groove slide rail. Both the first rotary positioning mechanism and the second rotary positioning mechanism are equipped with V-shaped sliders that slide in cooperation with the V-groove slide rail. Both the first rotary positioning mechanism and the second rotary positioning mechanism can be locked onto the V-groove slide rail by bolts.

7. The workpiece flipping fixture for a polishing machine according to claim 5, characterized in that, The worktable is a bidirectional sliding worktable, which can move in the left and right directions and in the front and back directions.

8. A polishing machine, characterized in that, The invention includes the workpiece flipping fixture as described in any one of claims 1-7 and the sanding belt mechanism disposed on the rear side of the worktable. The sanding belt mechanism includes a driving wheel, two driven wheels, and a sanding belt sleeved on the driving wheel and the two driven wheels. The two driven wheels and the driving wheel are arranged in a triangular configuration. The transverse working surface of the sanding belt located between the two driven wheels forms a surface contact grinding fit with the outer surface of the workpiece.

9. A polishing machine according to claim 8, characterized in that, The two driven wheels are arranged in a right-angled triangle with the driving wheel. The two driven wheels are arranged longitudinally and located between the driving wheel and the worktable. The axis of the driving wheel is flush with the axis of the driven wheel that is higher in position among the two driven wheels.

Images