Workpiece clamp for parallel double-spindle double-station intelligent turning center

Abstract

The utility model discloses a workpiece clamp for a parallel double-spindle double-station intelligent turning center, and relates to the technical field of workpiece clamps, the workpiece clamp comprises a workbench, the workbench is connected with a clamping mechanism and a tensioning mechanism, the clamping mechanism is used for clamping the peripheral face of a workpiece, and the tensioning mechanism is used for tensioning the peripheral face of the workpiece. The workbench is connected with a first driving piece used for driving the clamping mechanism to rotate, the tensioning mechanism is used for tensioning the inner circumferential face of a workpiece, the workbench is connected with a driving assembly used for driving the tensioning mechanism to rotate, and the workbench is connected with a moving assembly. And the moving assembly is used for moving the workpiece to the clamping mechanism, moving the workpiece at the clamping mechanism to the tensioning mechanism and moving the workpiece at the tensioning mechanism out. Comprehensive milling can be achieved only by milling the workpiece twice, the number of times of milling the workpiece is reduced, and the efficiency of milling the workpiece is improved.

Description

Technical Field

[0001] This application relates to the technical field of workpiece fixtures, and in particular to a workpiece fixture for a parallel dual-spindle dual-station intelligent turning center. Background Technology

[0002] like Figure 1 As shown, the workpiece is cylindrical with a through hole, and the workpiece's axis coincides with the axis of the through hole. To reduce the workpiece's surface roughness, both the outer and inner circumferential surfaces need to be milled.

[0003] Existing workpiece fixtures clamp the workpiece, with part of the workpiece's outer surface in contact with the fixture. The milling assembly cannot mill the clamped portion of the workpiece. The milling assembly first mills the workpiece's inner circumference, then part of its outer surface. After milling, the workpiece is flipped, allowing the fixture to clamp the milled end, and the milling assembly then mills the unmilled portion. Using this method, the workpiece needs to be milled three times to be completely milled, which is cumbersome and affects the efficiency of milling the entire workpiece. Utility Model Content

[0004] The purpose of this application is to provide a workpiece fixture for a parallel dual-spindle dual-station intelligent turning center, in order to improve the efficiency of milling the entire workpiece.

[0005] This application provides a workpiece fixture for a parallel dual-spindle dual-station intelligent turning center, which adopts the following technical solution: It includes a worktable, the worktable being connected to a clamping mechanism and a tensioning mechanism. The clamping mechanism is used to clamp the outer circumferential surface of the workpiece. The worktable is connected to a first driving component for driving the clamping mechanism to rotate. The tensioning mechanism is used to tension the inner circumferential surface of the workpiece. The worktable is connected to a driving assembly for driving the tensioning mechanism to rotate. The worktable is also connected to a moving assembly, which is used to move the workpiece to the clamping mechanism, move the workpiece at the clamping mechanism to the tensioning mechanism, and remove the workpiece from the tensioning mechanism.

[0006] By adopting the above technical solution, the workpiece is placed in the waiting area, and the moving component moves the workpiece in the waiting area to the clamping mechanism. The clamping mechanism clamps the outer circumferential surface of the workpiece, and the first driving component drives the clamping mechanism to rotate, i.e., the workpiece rotates, facilitating the milling component to mill the inner circumferential surface of the workpiece. After the inner circumferential surface of the workpiece is milled, the moving component moves the workpiece at the clamping mechanism to the tensioning mechanism, which tensions the inner circumferential surface of the workpiece. The driving component drives the tensioning mechanism to rotate, i.e., the workpiece rotates, facilitating the milling component to mill the outer circumferential surface of the workpiece. In this application, the workpiece only needs to be milled twice to achieve full milling, reducing the number of milling operations and improving the efficiency of workpiece milling. When the milling component mills the workpiece at the tensioning mechanism, the moving component moves the workpiece in the waiting area back to the clamping mechanism, pre-installing the workpiece and improving the overall efficiency of workpiece milling.

[0007] Optionally, the clamping mechanism includes a rotating disk rotatably connected to the worktable, at least two clamping blocks slidably connected to the rotating disk, and a first linkage component for driving each clamping block to move toward or away from each other. The first linkage component is connected to the rotating disk, and the first driving member is used to drive the rotating disk to rotate.

[0008] By adopting the above technical solution, the moving component moves the workpiece onto the rotary table, and the clamping blocks surround the workpiece. The first linkage component drives each clamping block to slide towards each other, and each clamping block abuts against and clamps the workpiece, thus fixing the workpiece on the rotary table. After the workpiece is milled, the first linkage component drives each clamping block to slide away from each other, and each clamping block separates from the workpiece, making it easier for the moving component to remove the workpiece from the rotary table.

[0009] Optionally, the rotating disk is provided with a limiting groove for sliding engagement with the corresponding clamping block.

[0010] By adopting the above technical solution, when the clamping block slides, the sliding cooperation between the clamping block and the limiting groove plays a guiding and limiting role in the sliding of the clamping block, thereby improving the clamping effect of the clamping block on the workpiece.

[0011] Optionally, the first linkage component includes a linkage disk rotatably connected to the rotating disk, a drive structure for driving the linkage disk to rotate, and a passive column connected to each of the clamping blocks. The drive structure is connected to the rotating disk, and the linkage disk is provided with an arc-shaped groove for sliding cooperation with the corresponding passive column. The distance from one end of the inner wall of the arc-shaped groove to the axis of the linkage disk is greater than the distance from the other end of the inner wall of the arc-shaped groove to the axis of the linkage disk.

[0012] By adopting the above technical solution, the drive structure drives the linkage disk to rotate. During the rotation of the linkage disk, the inner wall of the arc groove abuts against the passive column and drives the passive column to slide, so that each clamping block slides towards or away from each other, thereby realizing the clamping blocks clamping or releasing the workpiece.

[0013] Optionally, the drive structure includes a drive gear rotatably connected to the rotating disk, a rack connected to the linkage disk, and a second drive member for driving the drive gear to rotate. The second drive member is connected to the rotating disk, and the drive gear meshes with the rack.

[0014] By adopting the above technical solution, the second driving component drives the drive gear to rotate. Since the drive gear meshes with the rack, the drive gear drives the rack to rotate, thereby realizing the rotation of the linkage disc. The gear and rack transmission is stable and suitable for long-term operation.

[0015] Optionally, the tensioning mechanism includes a rotating sleeve rotatably connected to the worktable, at least two tensioning plates slidably connected to the rotating sleeve, and a second linkage assembly for driving each tensioning plate to slide towards or away from each other. The second linkage assembly is connected to the worktable, and the driving assembly is used to drive the rotating sleeve to rotate.

[0016] By adopting the above technical solution, the moving component moves the workpiece at the rotating disk to the rotating sleeve. Each tensioning plate is located inside the workpiece. The second linkage component drives each tensioning plate to slide away from each other. The tensioning plate abuts against the inner circumferential surface of the workpiece and tensions the workpiece, thus fixing the workpiece on the rotating sleeve. After the outer surface of the workpiece is milled by the milling component, the second linkage component drives each tensioning plate to slide closer to each other. The tensioning plate releases the workpiece, making it easier for the moving component to remove the milled workpiece from the rotating sleeve.

[0017] Optionally, a carrier plate is connected inside the rotating sleeve. The carrier plate is provided with a channel for sliding engagement with the corresponding tensioning plate. A guide block is connected to the inner wall of each channel. The tensioning plate is provided with a guide groove for sliding engagement with the corresponding guide block.

[0018] By adopting the above technical solution, when the tensioning plate slides, the sliding cooperation between the guide block and the guide groove plays a guiding and limiting role in the sliding of the tensioning plate, thereby improving the stability of the tensioning plate sliding and preventing the tensioning plate from detaching from the carrier plate during the sliding process.

[0019] Optionally, the second linkage component includes an active rod slidably connected to the worktable, a third driving member for driving the active rod to slide towards or away from the carrier plate, and a passive rod rotatably connected to each of the tension plates, wherein one end of the passive rod away from the tension plate is rotatably connected to the active rod, and the third driving member is connected to the worktable.

[0020] By adopting the above technical solution, the third driving component drives the active rod to slide towards the carrier plate, and the passive rod rotates, causing each tensioning plate to slide away from each other, thereby tensioning the workpiece; the third driving component drives the active rod to slide away from the carrier plate, and the passive rod rotates, causing each tensioning plate to slide towards each other, thereby releasing the workpiece.

[0021] Optionally, the rotating sleeve is connected to a limiting ring block, and the worktable is provided with a limiting ring groove for rotating with the limiting ring block.

[0022] By adopting the above technical solution, when the rotating sleeve rotates, the rotational cooperation between the limiting ring block and the limiting ring groove plays a guiding and limiting role in the rotation of the rotating sleeve, preventing the rotating sleeve from detaching from the worktable during the rotation process.

[0023] Optionally, the drive assembly includes a toothed belt, a driven gear connected to the rotating sleeve, a rotating gear rotatably connected to the worktable, and a fourth drive member for driving the rotating gear to rotate. The fourth drive member is connected to the worktable, and both the driven gear and the rotating gear mesh with the toothed belt.

[0024] By adopting the above technical solution, the fourth driving component drives the rotating gear to rotate, the rotating gear drives the toothed belt to rotate, the toothed belt drives the passive gear to rotate, that is, the rotating sleeve rotates, thereby realizing the rotation of the workpiece, which facilitates the milling component to mill the workpiece.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The workpiece only needs to be milled twice to achieve full milling, reducing the number of times the workpiece is milled and improving the efficiency of milling.

[0027] 2. The first linkage component drives each clamping block to slide towards each other, with each clamping block abutting against and clamping the workpiece, thus fixing the workpiece on the rotating disk. After the workpiece is milled, the first linkage component drives each clamping block to slide away from each other, separating each clamping block from the workpiece, making it easier for the moving component to remove the workpiece from the rotating disk. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the workpiece.

[0029] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Figure 3 This is one of the cross-sectional views of an embodiment of this application, showing the first driving member.

[0031] Figure 4 yes Figure 3 An enlarged view of region A.

[0032] Figure 5 This is a second cross-sectional view of an embodiment of this application, showing the third driving member.

[0033] Figure 6 yes Figure 5 A magnified view of region B.

[0034] Explanation of reference numerals in the attached drawings: 1. Worktable; 11. First driving component; 2. Moving component; 3. Tensioning mechanism; 31. Rotating sleeve; 311. Carrier plate; 3111. Channel; 3112. Guide block; 32. Tensioning plate; 33. Second linkage component; 331. Driving rod; 332. Third driving component; 333. Passive rod; 4. Clamping mechanism; 41. Rotating disk; 411. Limiting groove; 42. Clamping block; 43. First linkage component; 431. Linkage disk; 4311. Arc groove; 432. Drive structure; 4321. Driving gear; 4322. Rack; 4323. Second driving component; 433. Passive column; 5. Drive component; 51. Toothed belt; 52. Passive gear; 53. Rotating gear; 54. Fourth driving component. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 2 - Appendix Figure 6 This application will be described in further detail.

[0036] This application discloses a workpiece fixture for a parallel dual-spindle dual-station intelligent turning center.

[0037] like Figure 2 As shown, the system includes a worktable 1, which is connected to a moving assembly 2, a tensioning mechanism 3, and a clamping mechanism 4. The moving assembly 2 includes a robotic arm connected to the worktable 1 and a gripping structure fixedly connected to the robotic arm. The moving assembly 2 is located between the tensioning mechanism 3 and the clamping mechanism 4. The gripping structure can be a double-rod cylinder fixedly connected to the robotic arm and two gripping plates fixedly connected to the double-rod cylinder.

[0038] Combination Figure 3 and Figure 4As shown, the clamping mechanism 4 includes a rotating disk 41 rotatably connected to the worktable 1, four clamping blocks 42 slidably connected to the rotating disk 41, and a first linkage assembly 43 for driving the four clamping blocks 42 to slide towards or away from each other. The rotating disk 41 has a limiting groove 411 for sliding cooperation with the corresponding clamping block 42. The worktable 1 is fixedly connected to a first driving member 11 for driving the rotating disk 41 to rotate. The first driving member 11 is a motor, and the first driving member 11 is externally connected to a controller (not shown in the figure). The signal output terminal of the controller is connected to the signal input terminal of the first driving member 11, and the side of the rotating disk 41 closest to the first driving member 11 is fixedly connected to the output terminal of the first driving member 11.

[0039] Combination Figure 3 and Figure 4 As shown, the first linkage assembly 43 includes a linkage disk 431 rotatably connected to the rotating disk 41, a drive structure 432 for driving the linkage disk 431 to rotate, and a driven column 433 fixedly connected to each clamping block 42. The drive structure 432 includes a drive gear 4321 rotatably connected to the rotating disk 41, a rack 4322 fixedly connected to the linkage disk 431, and a second drive member 4323 for driving the drive gear 4321 to rotate. The second drive member 4323 is fixedly connected to the rotating disk 41 and is a motor. The signal output terminal of the controller is connected to the signal input terminal of the second drive member 4323. The side of the drive gear 4321 closest to the second drive member 4323 is fixedly connected to the output terminal of the second drive member 4323, and the drive gear 4321 meshes with the rack 4322. The linkage plate 431 has an arc-shaped groove 4311 for sliding cooperation with the corresponding passive column 433. The distance from one end of the inner wall of the arc-shaped groove 4311 to the axis of the linkage plate 431 is greater than the distance from the other end of the inner wall of the arc-shaped groove 4311 to the axis of the linkage plate 431.

[0040] Combination Figure 5 and Figure 6As shown, the tensioning mechanism 3 includes a rotating sleeve 31 rotatably connected to the worktable 1, three tensioning plates 32 slidably connected to the rotating sleeve 31, and a second linkage assembly 33 for driving each tensioning plate 32 to slide towards or away from each other. A limiting ring block (not shown in the figure) is fixedly connected to the outer circumferential surface of the rotating sleeve 31, and the worktable 1 has a limiting ring groove (not shown in the figure) for rotatingly engaging with the limiting ring block. The worktable 1 is connected to a drive assembly 5 for driving the rotating sleeve 31 to rotate. The drive assembly 5 includes a toothed belt 51, a driven gear 52 fixedly connected to the rotating sleeve 31, a rotating gear 53 rotatably connected to the worktable 1, and a fourth drive member 54 for driving the rotating gear 53 to rotate. The fourth drive member 54 is fixedly connected to the worktable 1 and is a motor. The side of the rotating gear 53 near the fourth drive member 54 is fixedly connected to the output end of the fourth drive member 54. The signal output end of the controller is connected to the signal input end of the fourth drive member 54. Both the driven gear 52 and the rotating gear 53 mesh with the toothed belt 51.

[0041] Combination Figure 5 and Figure 6 As shown, a carrier plate 311 is fixedly connected inside the rotating sleeve 31. The carrier plate 311 has a channel 3111 for sliding engagement with the corresponding tensioning plate 32. Two guide blocks 3112 are fixedly connected to the inner wall of each channel 3111. The tensioning plate 32 has a guide groove for sliding engagement with the corresponding guide block 3112. The second linkage assembly 33 includes an active rod 331 slidably connected to the worktable 1, a third driving member 332 for driving the active rod 331 to slide towards or away from the carrier plate 311, and a passive rod 333 rotatably connected to each tensioning plate 32. The third driving member 332 is fixedly connected to the worktable 1 and is a cylinder. The signal output terminal of the controller is connected to the signal input terminal of the third driving member 332. The active rod 331 is rotatably connected to the output terminal of the third driving member 332. The end of each passive rod 333 away from the tensioning plate 32 is rotatably connected to the active rod 331.

[0042] The implementation principle of a workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to an embodiment of this application is as follows:

[0043] The moving component 2 moves the workpiece onto the rotating disk 41, with clamping blocks 42 surrounding the workpiece. The second driving component 4323 drives the driving gear 4321 to rotate. Since the driving gear 4321 meshes with the rack 4322, the driving gear 4321 drives the rack 4322 to rotate, thereby realizing the rotation of the linkage disk 431. During the rotation of the linkage disk 431, the inner wall of the arc-shaped groove 4311 abuts against the driven column 433 and drives the driven column 433 to slide, causing each clamping block 42 to slide towards each other, thereby realizing the clamping block 42 clamping the workpiece. The first driving component 11 drives the rotating disk 41 to rotate, facilitating the milling component to mill the workpiece. After the inner circumferential surface of the workpiece is milled, the second driving component 4323 drives the driving gear 4321 to rotate in the opposite direction, that is, the clamping blocks 42 release the workpiece. The moving component 2 moves the workpiece on the rotating disk 41 to the rotating sleeve 31, with each tensioning plate 32 located inside the workpiece.

[0044] The third driving member 332 drives the active rod 331 to slide towards the carrier plate 311, while the passive rod 333 rotates, causing each tensioning plate 32 to slide away from each other, thereby tensioning the workpiece. The fourth driving member 54 drives the rotating gear 53 to rotate, which in turn drives the toothed belt 51 to rotate, which in turn drives the passive gear 52 to rotate, i.e., the rotating sleeve 31 to rotate, thus enabling the workpiece to rotate, facilitating the milling assembly to mill the outer surface of the workpiece. After the workpiece has been milled, the third driving member 332 drives the active rod 331 to slide away from the carrier plate 311, while the passive rod 333 rotates, causing each tensioning plate 32 to slide towards each other, thereby releasing the workpiece and facilitating the moving assembly 2 to remove the workpiece from the carrier plate 311.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A workpiece fixture for a parallel dual-spindle dual-station intelligent turning center, characterized in that: The device includes a worktable (1), which is connected to a clamping mechanism (4) and a tensioning mechanism (3). The clamping mechanism (4) is used to clamp the outer peripheral surface of the workpiece. The worktable (1) is connected to a first driving member (11) for driving the clamping mechanism (4) to rotate. The tensioning mechanism (3) is used to tension the inner peripheral surface of the workpiece. The worktable (1) is connected to a driving assembly (5) for driving the tensioning mechanism (3) to rotate. The worktable (1) is connected to a moving assembly (2), which is used to move the workpiece to the clamping mechanism (4), move the workpiece at the clamping mechanism (4) to the tensioning mechanism (3), and remove the workpiece at the tensioning mechanism (3).

2. The workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to claim 1, characterized in that: The clamping mechanism (4) includes a rotating disk (41) rotatably connected to the worktable (1), at least two clamping blocks (42) slidably connected to the rotating disk (41), and a first linkage assembly (43) for driving each clamping block (42) to move toward each other or away from each other. The first linkage assembly (43) is connected to the rotating disk (41), and the first driving member (11) is used to drive the rotating disk (41) to rotate.

3. The workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to claim 2, characterized in that: The rotating disk (41) is provided with a limiting groove (411) for sliding engagement with the corresponding clamping block (42).

4. The workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to claim 2, characterized in that: The first linkage component (43) includes a linkage disk (431) rotatably connected to the rotating disk (41), a drive structure (432) for driving the linkage disk (431) to rotate, and a passive column (433) connected to each clamping block (42). The drive structure (432) is connected to the rotating disk (41). The linkage disk (431) is provided with an arc-shaped groove (4311) for sliding cooperation with the corresponding passive column (433). The distance from one end of the inner wall of the arc-shaped groove (4311) to the axis of the linkage disk (431) is greater than the distance from the other end of the inner wall of the arc-shaped groove (4311) to the axis of the linkage disk (431).

5. The workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to claim 4, characterized in that: The drive structure (432) includes a drive gear (4321) rotatably connected to the rotating disk (41), a rack (4322) connected to the linkage disk (431), and a second drive member (4323) for driving the drive gear (4321) to rotate. The second drive member (4323) is connected to the rotating disk (41), and the drive gear (4321) meshes with the rack (4322).

6. The workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to claim 1, characterized in that: The tensioning mechanism (3) includes a rotating sleeve (31) rotatably connected to the worktable (1), at least two tensioning plates (32) slidably connected to the rotating sleeve (31), and a second linkage assembly (33) for driving each tensioning plate (32) to slide in a direction closer to or further away from each other. The second linkage assembly (33) is connected to the worktable (1), and the driving assembly (5) is used to drive the rotating sleeve (31) to rotate.

7. The workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to claim 6, characterized in that: The rotating sleeve (31) is connected to a carrier plate (311), the carrier plate (311) is provided with a channel (3111) for sliding engagement with the corresponding tensioning plate (32), the inner wall of each channel (3111) is connected to a guide block (3112), and the tensioning plate (32) is provided with a guide groove for sliding engagement with the corresponding guide block (3112).

8. The workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to claim 7, characterized in that: The second linkage assembly (33) includes an active rod (331) slidably connected to the worktable (1), a third drive member (332) for driving the active rod (331) to slide toward or away from the carrier plate (311), and a passive rod (333) rotatably connected to each of the tension plates (32). The end of the passive rod (333) away from the tension plate (32) is rotatably connected to the active rod (331), and the third drive member (332) is connected to the worktable (1).

9. The workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to claim 6, characterized in that: The rotating sleeve (31) is connected to a limiting ring block, and the worktable (1) is provided with a limiting ring groove for rotating with the limiting ring block.

10. The workpiece fixture for a parallel dual-spindle dual-station intelligent turning center according to claim 6, characterized in that: The drive assembly (5) includes a toothed belt (51), a driven gear (52) connected to the rotating sleeve (31), a rotating gear (53) rotatably connected to the worktable (1), and a fourth drive member (54) for driving the rotating gear (53) to rotate. The fourth drive member (54) is connected to the worktable (1). Both the driven gear (52) and the rotating gear (53) mesh with the toothed belt (51).

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