Rotating disc type multi-station clamping device

Abstract

The utility model discloses a rotating disc type multi-station clamping device. The rotating disc type multi-station clamping device comprises a supporting and positioning module and a rotating machining module rotationally arranged in the supporting and positioning module. The rotary machining module comprises a material fixing rotary disc rotating around the rotating center of the rotary machining module, and a plurality of material storage stations used for positioning workpieces are arranged in the circumferential direction of the material fixing rotary disc. A clamp for clamping a workpiece is arranged at each storage station, and each clamp is of a lever type structure; a clamping cam disc is located on the inner side of the clamp and is coaxial with the material fixing rotary disc, and the driving end of the clamp is matched with the clamping cam disc to control the clamping end of the clamp to clamp the workpiece. According to the structure, the clamps are arranged on the storage stations corresponding to the material fixing rotary disc, the clamps are matched with the clamping cam disc to complete multi-station machining of workpieces, the structure is simple, the transfer time of the workpieces in the machining process is short, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a rotary multi-station clamping device. Background Art

[0002] In existing mass production, an assembly line production method is often adopted. Each process is scattered throughout the production line and cannot be integrated. Moreover, the fixture corresponding to each storage station requires an independent driving device to drive the fixture to complete the clamping during the workpiece processing, resulting in a large number of process equipment, large occupied space, and long transfer time of the workpiece between processes in the whole production line, and also leading to low production efficiency.

[0003] Moreover, existing fixtures usually use clamping jaws or manipulators to clamp workpieces, and then push the feed through a cylinder or other means. Although automatic sorting can be achieved, it is difficult to maintain continuity in the whole machining process, and its production efficiency is limited. Moreover, its movement requires the participation of numerical control and pneumatic devices, which requires a large amount of programming and debugging, and the machine manufacturing and maintenance costs are high, which is not conducive to mass production. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a rotary multi-station clamping device.

[0005] The technical solution of the utility model is as follows:

[0006] It includes a support and positioning module and a rotary machining module rotatably arranged in the support and positioning module;

[0007] The rotary machining module includes a fixed material turntable rotating around its rotation center, and a plurality of storage stations for positioning workpieces are arranged along the circumferential direction of the fixed material turntable;

[0008] A fixture for clamping the workpiece is arranged at each storage station, and the fixture is of a lever structure; a clamping cam disk is arranged inside the fixture and coaxially with the fixed material turntable, and the driving end of the fixture cooperates with the clamping cam disk to control the clamping end of the fixture to clamp the workpiece.

[0009] A further technical solution thereof is: The fixture includes a clamping rod, a fulcrum and an operating rod, and the operating rod is connected to the clamping rod through the fulcrum; wherein, two groups of oppositely arranged clamping rods form a clamping end, and the operating rod serves as a driving end and cooperates with the clamping cam disk.

[0010] A further technical solution thereof is: The clamping cam disk is of a disk cam structure, and the contour curve of the clamping cam disk is respectively composed of a plurality of arcs with different diameters; the operating rod contacts the contour surface of the clamping cam disk through a driving roller.

[0011] A further technical solution thereof is: The fulcrums of the two groups of clamping rods are respectively connected by meshing transmission of clamping gears.

[0012] A further technical solution is that the clamping gear is rotatably connected to the blanking turntable through a clamping gear shaft bearing.

[0013] A further technical solution is that a clamping area is formed between the ends of the two groups of clamping rods, and elastic members are also provided on the two groups of clamping rods between the clamping area and the fulcrum. After the operating rod is released, the elastic contraction of the elastic members is used to clamp the workpiece.

[0014] A further technical solution is that each set of fixtures includes a set of operating rods, and this set of operating rods extends along the fulcrum towards the rotation center direction, and the driving rollers are arranged at the ends of the operating rods.

[0015] A further technical solution is that the clamping rods are provided with clamping rollers in the clamping area, and the clamping rollers can rotate freely.

[0016] A further technical solution is that the rotary processing module includes a rotating shaft and a rotary driving member for driving the rotating shaft to rotate, and the blanking turntable is in transmission connection with the rotating shaft.

[0017] A further technical solution is that the support and positioning module includes a support bottom plate and a support plate fixed on the support bottom plate, and the rotating shaft is rotatably connected to the support plate through a linear bearing.

[0018] The beneficial technical effect of the present utility model is that fixtures are provided at each material storage station corresponding to the blanking turntable in this structure, and the fixtures cooperate with the clamping cam disc to complete the multi-station processing of the workpiece. The process assembly is simple, the structure is compact, the transfer time of the workpiece during the processing is less, and the processing efficiency is greatly improved. Brief Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the structure of the support and positioning module of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the rotary processing module of the present utility model;

[0022] Figure 4 is a schematic diagram of the structure of the fixture of the present utility model;

[0023] Figure 5 is a partial cross-sectional schematic diagram of the fixture of the present utility model;

[0024] Figure 6 is a schematic diagram of the cooperation between the fixture and the clamping cam disc of the present utility model;

[0025] Among them: 1. Support positioning module; 11. Support base plate; 12. Support plate; 13. Linear bearing; 2. Rotary processing module; 21. Rotary axis; 22. Material setting turntable; 23. Material storage station; 24. Profile through hole; 241. Support platform; 3. Clamp; 31. Clamping rod; 32. Operating rod; 33. Clamping gear; 34. Fixed platform; 341. Fixed hole; 35. Clamping gear shaft; 36. Elastic member; 37. Driving roller; 38. Clamping roller; 4. Clamping cam plate; 41. Contour curve; 42. Contour surface. DETAILED DESCRIPTION

[0026] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0027] like Figure 1 As shown, the turntable type multi-station clamping device described in the utility model includes a supporting and positioning module 1 and a rotating processing module 2 rotatably arranged in the supporting and positioning module 1; the rotating processing module 2 includes a rotating shaft 21, a rotating driving member that drives the rotating shaft 21 to rotate, and a material fixing turntable 22 that rotates around a rotation center under the drive of the rotating shaft 21, and the material fixing turntable 22 is evenly arranged along the circumference of a plurality of material storage stations 23 for positioning workpieces.

[0028] like Figure 2 As shown, the supporting and positioning module 1 includes a supporting base plate 11 and a supporting plate 12 fixed on the supporting base plate 11 . The rotating shaft 21 is rotatably connected to the supporting plate 12 via a linear bearing 13 . The material setting turntable 22 is transmission-connected to the rotating shaft 21 .

[0029] In this embodiment, Figure 3 The material storage station 23 is a contoured through hole 24 arranged on the material fixing turntable 22. The center of the contoured through hole 24 is along the axial direction. The inner periphery of the contoured through hole 24 is provided with a supporting platform 241 for supporting and holding the workpiece. The workpiece is located in the contoured through hole 24. Each material storage station 23 is used to carry and position a workpiece.

[0030] Corresponding to each material storage station 23, there is a clamp 3 for clamping and centering the workpiece when the workpiece is rotated for gluing, and the clamp 3 is a lever-type structure; a clamping cam plate 4 coaxial with the material setting turntable 22 is provided on the inner side of the clamp 3, and the driving end of the clamp 3 cooperates with the clamping cam plate 4 to control the clamping end of the clamp 3 to clamp the workpiece.

[0031] Specifically, Figures 4 to 5As shown in the figure, the fixture 3 includes a clamping rod 31, a fulcrum, and an operating rod 32. The clamping rod 31 is connected to the operating rod 32 through the fulcrum. Among them, two groups of oppositely arranged clamping rods 31 form a clamping end, and a clamping opening and a clamping area are formed between the ends of the two groups of clamping rods 31; the operating rod 32 serves as a driving end and cooperates with the clamping cam disk 4 to control the opening and closing of the clamping rod 31.

[0032] Furthermore, the fulcrums of the two groups of clamping rods 31 are respectively connected by meshing transmission through clamping gears 33. Specifically, a fixed platform 34 is fixedly provided at a position corresponding to the clamping gear 33 on the blanking turntable 22. A fixing hole 341 for passing through the clamping gear shaft 35 is provided on the fixed platform 34. The clamping gear 33 is rotationally connected to the fixed platform 34 through the clamping gear shaft 35 by bearings, and the fulcrum drives the clamping end to open and close as the clamping gear 33 rotates.

[0033] Furthermore, elastic members 36 are provided between the two groups of clamping rods 31 between the clamping area and the fulcrum. The two groups of elastic members 36 are respectively distributed at the upper and lower ends of the clamping rod 31. The elastic member 36 is used to clamp the workpiece by elastic contraction after the operating rod 32 is released.

[0034] Furthermore, each set of fixtures 3 includes a set of operating rods 32. This set of operating rods 32 extends along the fulcrum towards the rotation center direction, and a driving roller 37 is provided at the end of the operating rod 32.

[0035] Specifically, the clamping cam disk 4 is fixedly arranged on the support positioning module 1 through a fixing member. The clamping cam disk 4 has a disk-shaped cam structure. The contour curve 41 of the clamping cam disk 4 is respectively composed of multiple arcs with different diameters; the operating rod 32 contacts the contour surface 42 of the clamping cam disk 4 through the driving roller 37. Driven by the rotation of the blanking turntable 22, the operating rod 32 moves along the contour surface 42 of the clamping cam disk 4, and drives the clamping rod 31 to clamp and release the workpiece.

[0036] During operation, such as Figure 6 , when the driving roller 37 rotates with the blanking turntable 22 and abuts against an arc with a relatively large diameter on the opposite contour surface 42, the operating rod 32 drives the clamping gear 33 to rotate meshingly, so that the clamping opening and the clamping area between the clamping rods 31 become larger. After the workpiece enters the clamping area from the clamping opening, the driving roller 37 enters the contour surface 42 with a smaller arc diameter, and the driving roller 37 and the clamping cam disk 4 are in a non-extrusion state. Under the elastic force of the elastic member 36, the clamping area becomes smaller and clamps the workpiece.

[0037] In mechanical processing, the fixation and positioning of the workpiece are of vital importance, which directly affects the precision and efficiency of the processing. In particular, in the case of workpieces that require multi-faceted processing or circumferential processing, the clamping method of the workpiece directly affects the uniformity and precision of the processing. In this embodiment, the clamping rod 31 is provided with clamping rollers 38 at the clamping port and the clamping area, and the clamping rollers 38 can rotate freely. Specifically, the clamping rollers 38 are fixed to the clamping rod 31 through bearings or similar structures, and rotate smoothly when subjected to force. After the workpiece is squeezed into the clamping area through the clamping rollers 38 at the clamping port, it is clamped by the circumferential clamping rollers 38, so that the workpiece can rotate under the clamping of the clamping rollers 38.

[0038] Through the rotation of the clamping roller 38, the workpiece can be evenly subjected to the force of the processing tool, thereby achieving a uniform processing effect; while providing the self-rotation capability, the clamping roller 38 can also ensure the stability of the workpiece and will not be displaced or jittered due to self-rotation.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. Rotary multi-station clamping device, characterized in that: It comprises a supporting and positioning module (1) and a rotating processing module (2) rotatably arranged in the supporting and positioning module (1); The rotary processing module (2) comprises a material setting turntable (22) which rotates around its rotation center, and a plurality of material storage stations (23) for positioning workpieces are arranged along the circumference of the material setting turntable (22); A clamp (3) for clamping the workpiece is provided at each material storage station (23), and the clamp (3) is a lever-type structure; a clamping cam plate (4) is provided on the inner side of the clamp (3) and coaxially with the material setting turntable (22); the driving end of the clamp (3) cooperates with the clamping cam plate (4) to control the clamping end of the clamp (3) to clamp the workpiece.

2. The rotary multi-station clamping device according to claim 1, wherein: The clamp (3) comprises a clamping rod (31), a fulcrum and an operating rod (32), wherein the operating rod (32) is connected to the clamping rod (31) via the fulcrum; wherein two groups of clamping rods (31) arranged opposite to each other form a clamping end, and the operating rod (32) serves as a driving end and cooperates with the clamping cam disc (4).

3. The rotary multi-station clamping device according to claim 2, characterized in that: The clamping cam disc (4) is a disc-shaped cam structure, and the contour curve (41) of the clamping cam disc (4) is composed of multiple arcs with different diameters; the operating rod (32) contacts the contour surface (42) of the clamping cam disc (4) through the driving roller (37).

4. The rotary multi-station clamping device according to claim 2, wherein: The supporting points of the two groups of clamping rods (31) are respectively connected by meshing transmission via clamping gears (33).

5. The rotary multi-station clamping device according to claim 4, wherein: The clamping gear (33) is rotatably connected to the material setting turntable (22) via a clamping gear shaft (35) bearing.

6. The rotary multi-station clamping device according to claim 2, characterized in that: A clamping area is formed between the ends of the two groups of clamping rods (31), and an elastic member (36) is provided between the clamping area and the fulcrum on the two groups of clamping rods (31). When the operating rod (32) is released, the workpiece is clamped by elastic contraction of the elastic member (36).

7. The rotary multi-station clamping device according to claim 3, characterized in that: Each set of clamps (3) comprises a set of operating rods (32), which extend along the fulcrum towards the rotation center, and the driving roller (37) is arranged at the end of the operating rod (32).

8. The rotary multi-station clamping device according to claim 6, characterized in that: The clamping rod (31) is provided with a clamping roller (38) in the clamping area, and the clamping roller (38) can rotate freely.

9. The rotary multi-station clamping device according to claim 1, wherein: The rotary processing module (2) comprises a rotary shaft (21) and a rotary driving member for driving the rotary shaft (21) to rotate, and the material setting turntable (22) is transmission-connected to the rotary shaft (21).

10. The rotary multi-station clamping device according to claim 9, characterized in that: The supporting positioning module (1) comprises a supporting base plate (11) and a supporting plate (12) fixed on the supporting base plate (11); the rotating shaft (21) is rotatably connected to the supporting plate (12) via a linear bearing (13).

Images