A machining positioning device for a multi-sided part
By integrating a positioning module and a hydraulically driven movable pressure plate structure on the bridge plate, rapid positioning and processing of multi-faceted parts can be achieved, solving the problem of excessive clamping time for multi-faceted parts, improving processing efficiency and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI YOUZUO PRECISION MASCH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, the clamping and transfer time of multi-faceted parts is too long, resulting in low processing efficiency and increased production costs.
Design a machining and positioning device for multi-faceted parts. It adopts a positioning module and a movable pressure plate structure integrated on the bridge plate. The movable pressure plate is driven by a hydraulic cylinder to achieve automatic clamping and loosening. Combined with a four-axis rotary indexing mechanism, it realizes rapid positioning and machining of multi-faceted parts.
By reducing the clamping time for multi-faceted parts, processing efficiency is improved and production costs are reduced.
Smart Images
Figure CN224543805U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a machining positioning device for multi-faceted parts. Background Technology
[0002] An end cap part with a flange shape approximating an octagon can have all its structural surfaces projected onto a decahedron. Although there are many machining angles, the allowance in each machining direction is very small, and in some directions, only a small hole needs to be drilled. Therefore, the program time in each machining direction is very short. If the machining is done in multiple steps, the auxiliary time for clamping, transfer, etc., will be very long, which will seriously affect the machining efficiency and increase the production cost. Summary of the Invention
[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a processing and positioning device for multi-faceted parts, which reduces the time required for clamping multi-faceted parts and improves the processing efficiency of multi-faceted parts.
[0004] Technical Solution: To achieve the above objectives, this utility model provides a multi-faceted part processing and positioning device, including a bridge plate, with rotary connectors at both ends of the bridge plate, and the two rotary connectors sharing a common axis; a plurality of positioning modules are provided on the bridge plate, and the installation angles of the multi-faceted parts on each positioning module are different; each positioning module includes a limiting component and a clamping component arranged opposite to each other, the limiting component can limit the multi-faceted parts, and the clamping component can clamp the multi-faceted parts onto the limiting component; there is a workpiece positioning cavity between the limiting component and the clamping component, and each positioning module is linearly arranged along the direction of the common axis, and the common axis passes through the workpiece positioning cavity in each positioning module in sequence.
[0005] Furthermore, the clamping assembly includes a movable pressure plate that can move to be opposite to the bridge plate; the movable pressure plate is provided with a plurality of clamping screws that can be adjusted up and down relative to the movable pressure plate, and when the clamping screws move down, they clamp the multi-faceted parts.
[0006] Furthermore, the clamping assembly also includes a vertical rod mounted on the bridge plate, and a movable pressure plate is detachably mounted on the vertical rod; the vertical rod is provided with an annular groove, and the movable pressure plate is provided with a latch, so that the movable pressure plate can be latched onto the annular groove through the latch.
[0007] Furthermore, the clamping assembly also includes a hydraulic cylinder mounted on the bridge plate, and a movable pressure plate is mounted on the hydraulic cylinder in the form of a lever; one end of the movable pressure plate is the pressure end, and a clamping screw is mounted on the pressure end; the other end of the movable pressure plate is connected to a drive mechanism, and under the drive of the drive mechanism, the pressure end of the movable pressure plate can actively press down or move up.
[0008] Furthermore, the movable pressure plate is connected to the oil cylinder via a connecting rod, with both ends of the connecting rod hinged to the movable pressure plate and the oil cylinder respectively; the output end of the drive mechanism is a lifting rod, which is hinged to the movable pressure plate, and when the lifting rod moves up or down, it drives the pressing end of the movable pressure plate to press down or move up.
[0009] Furthermore, the lifting rod is driven to rise and fall by a hydraulic cylinder, and the bridge plate has an oil passage for supplying oil to the hydraulic cylinder.
[0010] Furthermore, the rotary connector is a mandrel; the two ends of the bridge plate are provided with connecting plates, and the mandrel is mounted on the connecting plates.
[0011] Furthermore, the bridge plate has several tool through holes.
[0012] Furthermore, the limiting component is one or a combination of limiting pins, limiting blocks, and limiting grooves.
[0013] Beneficial effects: The beneficial effects of the multi-faceted part processing and positioning device of this utility model are as follows:
[0014] 1) Several positioning modules are integrated into one bridge plate, and the installation angle of multi-faceted parts is different on different positioning modules. When multi-faceted parts are installed on different positioning modules, different process structure surfaces on multi-faceted parts can be processed, thereby reducing the time required for clamping multi-faceted parts and improving the processing efficiency of multi-faceted parts.
[0015] 2) The multi-faceted parts are clamped by the clamping screws on the movable pressure plate. The movable pressure plate is installed on the bridge plate in the form of a lever. There are oil passages in the bridge plate. The movable pressure plate is driven by the oil cylinder to actively clamp or loosen the multi-faceted parts, which can improve the loading and unloading speed of the multi-faceted parts on the bridge plate. Attached Figure Description
[0016] Appendix Figure 1 This is a structural schematic diagram of the end cap component;
[0017] Appendix Figure 2 This is a schematic diagram of an embodiment where the movable pressure plate is mounted on the bridge plate via a vertical pole;
[0018] Appendix Figure 3 For end cap parts installed Figure 2 The diagram shown is on the bridge plate.
[0019] Appendix Figure 4 for Figure 2 A schematic diagram of the tool passage holes on the bridge plate shown;
[0020] Appendix Figure 5 A schematic diagram of an embodiment in which the movable pressure plate is mounted on the hydraulic cylinder in the form of a lever;
[0021] Appendix Figure 6For end cap parts installed Figure 5 The diagram shown is on the bridge plate.
[0022] Appendix Figure 7 for Figure 5 The diagram shows the tool passage hole on the bridge plate. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings.
[0024] As attached Figures 1 to 7 The aforementioned processing and positioning device for multi-faceted parts is applicable to the processing and positioning of multi-faceted parts. These multi-faceted parts have multiple process-structured surfaces. An example of a multi-faceted part is shown below. Figure 1 The end cap part 17 shown has a flange shape that is approximately octagonal, and all its structural surfaces can be projected onto a decahedron. Although there are many machining angles, the allowance in each machining direction is very small, and in some directions, only a small hole needs to be drilled. Therefore, the program time in each machining direction is very short. If the machining is done in multiple steps, the auxiliary time for clamping, transfer, etc., will be very long, which will seriously affect the machining efficiency and increase the production cost.
[0025] The machining positioning device of this utility model includes a bridge plate 1, with rotary connectors at both ends of the bridge plate 1. The two rotary connectors share a common axis, and the bridge plate 1 can rotate around the common axis. Several positioning modules 2 are provided on the bridge plate 1. The positioning modules 2 can position multi-faceted parts. The mounting angles of the multi-faceted parts on each positioning module 2 are different. Therefore, when the multi-faceted parts are mounted on different positioning modules 2, different process structural surfaces on the multi-faceted parts can be machined, thereby reducing the time required for clamping the multi-faceted parts and improving the machining efficiency. Furthermore, when the multi-faceted parts are mounted on the positioning modules 2, at least one process structural surface of the multi-faceted part is parallel to the common axis, facilitating the machining of the process structural surface of the multi-faceted parts by the cutting tool.
[0026] The positioning module 2 includes a limiting component 3 and a clamping component 4 arranged opposite to each other. The limiting component 3 is mounted on the bridge plate 1 and can limit the multi-faceted parts. The clamping component 4 can clamp the multi-faceted parts onto the limiting component 3. Between the limiting component 3 and the clamping component 4 is a workpiece positioning cavity 5, in which the multi-faceted parts are correspondingly installed. The positioning modules 2 are linearly arranged along a common axis, and the common axis passes through the workpiece positioning cavities 5 in each positioning module 2 in sequence. When the bridge plate 1 rotates around the common axis, the orientation of each process surface on the multi-faceted parts can be changed, facilitating the machining of each process surface on the multi-faceted parts by the cutting tool.
[0027] Taking the end cap part 17 as an example, by setting up two workstations on the left and right sides on the bridge plate 1, the machining of all the process structural surfaces of the end cap part 17 is completed in one process in two steps through two clamping operations. The steps for clamping and unclamping the end cap part 17 in a complete machining cycle are as follows:
[0028] The first step is to disassemble the finished products from the two completed steps on the right positioning module 2;
[0029] The second step is to remove the end cap part 17 that has been processed in the first step from the left positioning module 2, and then position and clamp it on the right positioning module 2.
[0030] The third step is to position and clamp the workpiece onto the positioning module 2 on the left.
[0031] The limiting component 3 is one or a combination of limiting pins, limiting blocks, and limiting grooves. (See attached...) Figure 2 and 3 In the embodiment, the positioning module 2 on the left includes a limiting component 3 comprising two equal-height blocks a18, a large circular pin 19, and an directional block 20, which cooperate to fully position the multi-faceted part. In the positioning module 2 on the right, the limiting component 3 comprises two equal-height blocks b21, a cylindrical pin 22, and a rhomboid pin 23, which cooperate to fully position the multi-faceted part. And in the appendix... Figure 5 and 6 In the embodiments, there are also corresponding contour blocks a18, large circular pins 19, directional blocks 20, contour blocks b21, cylindrical pins 22, and rhomboid pins 23, but their shapes and positions have been appropriately adjusted.
[0032] The rotary connector is a spindle 14. Connecting plates 15 are provided at both ends of the bridge plate 1, and the spindle 14 is mounted on the connecting plates 15. The bridge plate 1 can be positioned on the four-axis rotary indexing mechanism via the spindle 14 and key 9 on the connecting plates 15 at both ends. Screws passing through the threaded holes 25 on the connecting plates 15 at both ends can fix the bridge plate 1 to the four-axis rotary indexing mechanism. The bridge plate 1 can rotate around the common axis of the spindles 14 at both ends, and the angle of rotation is precisely controlled by the four-axis indexing mechanism. A tool through hole 16 is provided on the bridge plate 1 for the tool to pass through, as shown in the attached figure. Figure 4 and 7 As shown, the tool on the spindle feeds one by one at each angle of rotation of the bridge plate 1, machining all the surfaces and holes to be machined on the end cap parts 17 at the two stations.
[0033] The clamping assembly 4 includes a movable pressure plate 6, which can be moved to be parallel to and opposite the bridge plate 1. A plurality of clamping screws 7 are provided on the movable pressure plate 6, and threaded holes are formed in the movable pressure plate 6. The clamping screws 7 are threadedly connected to the threaded holes, allowing the clamping screws 7 to be adjusted up and down within the threaded holes. Therefore, the clamping screws 7 can be adjusted up and down relative to the movable pressure plate 6, and when the clamping screws 7 move down, they clamp the multi-faceted parts.
[0034] The first implementation example is attached. Figure 2 and 3 As shown, the clamping assembly 4 also includes a vertical rod 8 mounted on the bridge plate 1. The vertical rod 8 is vertically mounted on the bridge plate 1, and the movable pressure plate 6 is detachably mounted on the vertical rod 8. The vertical rod 8 is provided with an annular groove, and the movable pressure plate 6 is provided with a latch 10. The movable pressure plate 6 can be locked into the annular groove through the latch 10. Each movable pressure plate 6 matches two vertical rods 8. The latches 10 are respectively opened at both ends of the movable pressure plate 6. The latches 10 at both ends of the movable pressure plate 6 are locked into the annular grooves of the two vertical rods 8. Then, the clamping screw 7 on the movable pressure plate 6 is tightened so that the end of the clamping screw 7 abuts against the upward-facing side of the multi-faceted part. Correspondingly, the upper surface of the movable pressure plate 6 will also be pressed against the annular groove on the vertical rod 8.
[0035] However, in this example, because the movable pressure plate 6 needs to be manually installed and removed, and the tightening screws 7 need to be turned each time, the loading and unloading speed of multi-faceted parts is slow, which seriously hinders the improvement of processing efficiency. Therefore, a second embodiment is proposed.
[0036] The second implementation is shown in the appendix. Figure 5 and 6 As shown, the clamping assembly 4 also includes a hydraulic cylinder 11 mounted on the bridge plate 1, and a movable pressure plate 6 is mounted on the hydraulic cylinder 11 in the form of a lever. One end of the movable pressure plate 6 is the pressure-applying end, which is opposite to the limiting assembly 3, and a clamping screw 7 is mounted on the pressure-applying end. The other end of the movable pressure plate 6 is connected to a drive mechanism. Under the drive of the drive mechanism, the pressure-applying end of the movable pressure plate 6 can actively press down or move up. This changes the manual clamping structure to an automatic clamping structure, improving processing efficiency.
[0037] Specifically, the movable pressure plate 6 is connected to the hydraulic cylinder 11 via a connecting rod 12, with both ends of the connecting rod 12 hinged to the movable pressure plate 6 and the hydraulic cylinder 11, respectively. The output end of the drive mechanism is a lifting rod 13, which is hinged to the movable pressure plate 6. When the lifting rod 13 rises or falls, it drives the pressing end of the movable pressure plate 6 to press down or move up. The lifting rod 13 is driven to rise and fall by the hydraulic cylinder 11, and the bridge plate 1 has an oil passage for supplying oil to the hydraulic cylinder 11. The hydraulic system of the machining center is connected to the oil passage in the bridge plate 1 to control the rise and fall of the lifting rod 13. By controlling the lever-type movable pressure plate 6 of the hydraulic cylinder assembly through the hydraulic system of the machining center, the end cover part 17 is pressed and released synchronously, resulting in extremely fast loading and unloading speeds and simultaneously improved clamping stability.
[0038] In addition, in the appendix Figure 5 and 6 In this embodiment, since the movable pressure plate 6 is mounted on the cylinder 11 of the bridge plate 1 in the form of a lever, the angle of the movable pressure plate 6 will change. Therefore, when the end of the clamping screw 7 clamps the multifaceted part, the movable pressure plate 6 may not be parallel to the bridge plate 1. This results in the end of the clamping screw 7 not being in surface contact with the upper surface of the multifaceted part, affecting the clamping effect, and may also cause damage to the surface of the multifaceted part due to excessive local pressure.
[0039] To address the aforementioned issues, an angle adjustment block 24 is provided at the end of the clamping screw 7. The upper end of the angle adjustment block 24 is connected to the end of the clamping screw 7 via a spherical hinge, allowing the angle of the angle adjustment block 24 to change relative to the clamping screw 7. The lower end of the angle adjustment block 24 is flat. The clamping screw 7 presses against the multi-faceted part through the angle adjustment block 24. The angle adjustment block 24 can adaptively change its angle to ensure that the lower end of the angle adjustment block 24 is in contact with the surface of the multi-faceted part, thereby improving the clamping effect on the multi-faceted part.
[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A machining and positioning device for multi-faceted parts, characterized in that: The bridge plate (1) is provided with a rotary connector at both ends of the bridge plate (1), and the two rotary connectors have a common axis. Several positioning modules (2) are provided on the bridge plate (1), and the installation angles of the multi-faceted parts on each positioning module (2) are different. The positioning module (2) includes a limiting component (3) and a pressing component (4) arranged opposite to each other. The limiting component (3) can limit the multi-faceted parts, and the pressing component (4) can press the multi-faceted parts on the limiting component (3). There is a workpiece positioning cavity (5) between the limiting component (3) and the pressing component (4). Each positioning module (2) is arranged linearly along the direction of the common axis, and the common axis passes through the workpiece positioning cavity (5) in each positioning module (2) in sequence.
2. The machining and positioning device for multi-faceted parts according to claim 1, characterized in that: The clamping assembly (4) includes a movable pressure plate (6), which can be moved to be opposite to the bridge plate (1); a number of clamping screws (7) are provided on the movable pressure plate (6), and the clamping screws (7) can be adjusted up and down relative to the movable pressure plate (6). When the clamping screws (7) move down, they clamp the multi-faceted parts.
3. The machining and positioning device for multi-faceted parts according to claim 2, characterized in that: The clamping assembly (4) also includes a vertical rod (8) installed on the bridge plate (1), and a movable pressure plate (6) is detachably installed on the vertical rod (8); the vertical rod (8) is provided with an annular groove, and the movable pressure plate (6) is provided with a bayonet (10), and the movable pressure plate (6) can be locked in the annular groove through the bayonet (10).
4. The machining and positioning device for multi-faceted parts according to claim 2, characterized in that: The clamping assembly (4) also includes a hydraulic cylinder (11) mounted on the bridge plate (1), and a movable pressure plate (6) mounted on the hydraulic cylinder (11) in the form of a lever; one end of the movable pressure plate (6) is the pressure end, and a clamping screw (7) is mounted on the pressure end; the other end of the movable pressure plate (6) is connected to the drive mechanism, and under the drive of the drive mechanism, the pressure end of the movable pressure plate (6) can actively press down or move up.
5. The machining and positioning device for multi-faceted parts according to claim 4, characterized in that: The movable pressure plate (6) is connected to the oil cylinder (11) via a connecting rod (12). The two ends of the connecting rod (12) are hinged to the movable pressure plate (6) and the oil cylinder (11) respectively. The output end of the drive mechanism is a lifting rod (13), which is hinged to the movable pressure plate (6). When the lifting rod (13) moves up and down, it drives the pressure end of the movable pressure plate (6) to press down or move up.
6. The machining and positioning device for multi-faceted parts according to claim 5, characterized in that: The lifting rod (13) is driven to lift by the oil cylinder (11), and the bridge plate (1) has an oil passage for supplying oil to the oil cylinder (11).
7. The machining and positioning device for multi-faceted parts according to claim 1, characterized in that: The rotary connector is a spindle (14); the two ends of the bridge plate (1) are provided with connecting plates (15), and the spindle (14) is mounted on the connecting plates (15).
8. The machining and positioning device for multi-faceted parts according to claim 1, characterized in that: The bridge plate (1) has several tool through holes (16).
9. The machining and positioning device for multi-faceted parts according to claim 1, characterized in that: The limiting component (3) is one or a combination of limiting pins, limiting blocks and limiting grooves.