Turn-milling combined machining clamp

Abstract

The utility model relates to the technical field of combined machining, discloses a turning and milling combined machining fixture, and solves the problems that a fixture cannot drive a workpiece to rotate, so that the fixture cannot be matched with turning and milling machining, and the machining efficiency is reduced. The second gear and the first gear are in a meshed state, then the rotating disc is driven to rotate, the rotating disc drives the clamping assembly to rotate in the rotating process, finally the workpiece is driven to rotate, the workpiece can be matched with turning and milling for machining, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite machining, in particular to a turning-milling composite machining fixture. Background Technique

[0002] Composite machining is one of the most popular machining processes in the international mechanical machining field and is an advanced manufacturing technology; composite machining is to realize several different machining processes on one machine tool. Composite machining has the widest application and the greatest difficulty, which is turning-milling composite machining. A turning-milling composite machining center is equivalent to the combination of a CNC lathe and a machining center. During the turning-milling composite machining process, it is often necessary to position the workpiece clamped by the fixture body.

[0003] The existing Chinese patent with the publication number CN219212294U discloses a positioning fixture for turning-milling composite machining. The motor 110 drives the driving wheel 130 to rotate through the rotating shaft 120. The driving wheel 130 drives the three driven wheels 140 meshing with it to rotate. The three driven wheels 140 drive the three lead screws 220 to rotate in the sliding grooves 210 at the same time. The three lead screws 220 move the three limit blocks 230 and the support plate 340 thereon at the same time, so as to fix the object. However, this fixture itself cannot drive the workpiece to rotate during the machining process, so it does not have the function of cooperating with turning-milling for machining, resulting in a significant reduction in machining efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a turning-milling composite machining fixture. By using this device for work, the problem that the fixture itself cannot drive the workpiece to rotate, resulting in inability to cooperate with turning-milling machining and reducing the machining efficiency, is solved.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A turning-milling composite machining fixture, including a base. A rotating disk is arranged inside the base. A clamping assembly is arranged inside the rotating disk. A circular groove is opened on the upper surface of the base. A rotating seat is fixedly installed inside the circular groove. The rotating disk is rotatably installed at the upper end of the rotating seat. A first gear is fixedly installed on the outer side of the rotating disk. A driving mechanism is arranged inside the circular groove. The driving mechanism includes a first servo motor fixedly connected to the surface of the circular groove. The output end of the first servo motor is fixedly installed with a rotating shaft. A second gear is fixedly installed at the upper end of the rotating shaft. The second gear is meshed with the first gear. By driving the rotating shaft to rotate by the first servo motor and driving the second gear to rotate, since the second gear and the first gear are in a meshing state, the rotating disk is driven to rotate. During the rotation of the rotating disk, the clamping assembly is driven to rotate, and finally the workpiece is driven to rotate, so that it can cooperate with turning-milling for machining and improve the machining efficiency.

[0006] Preferably, a rectangular groove is formed on the upper surface of the rotating disk. The clamping assembly includes a driving member, and two groups of clamping members are arranged on the outer side of the driving member. A bidirectional lead screw is rotatably installed inside the rectangular groove. The driving end of the bidirectional lead screw is fixedly installed with a second servo motor. A fixing member is fixedly installed on the outer side of the second servo motor, and the fixing member is fixedly connected to the surface of the rectangular groove. A driving block is threadedly installed on the outer side of the bidirectional lead screw. The upper end of the driving block is fixedly installed with a clamping block. A rubber block is fixedly installed on one side of the clamping block. There are two groups of clamping members, and their structural compositions and functions are exactly the same and are symmetrically arranged. The second servo motor drives the bidirectional lead screw to rotate, driving the two groups of clamping members to move towards the center of the bidirectional lead screw simultaneously to complete the clamping of the workpiece. The setting of the rubber block effectively prevents indentation on the surface of the workpiece caused by excessive clamping force, thereby affecting the processing quality.

[0007] Preferably, elastic members are arranged on the other sides of the two groups of clamping members. The structures and functions of the two groups of elastic members are exactly the same. The elastic member includes a spring fixedly connected to the clamping block. The end of the spring away from the clamping block is fixedly installed with an arc-shaped plate. Sliders are fixedly installed on both sides of the end of the arc-shaped plate close to the spring, and the sliders are slidably connected to the clamping block. When clamping a tubular workpiece, first move the two groups of clamping members to the center of the bidirectional lead screw, then place the workpiece on the outside, and then drive the two groups of clamping members to expand outwards until the arc-shaped plate contacts the inner wall of the workpiece and compresses the spring, which realizes the rapid clamping of the tubular workpiece and plays a certain buffering role during contact to prevent damage to the workpiece.

[0008] Preferably, a partition plate is fixedly installed at the upper end of the base. The partition plate is rotatably connected to the rotating disk. Telescopic plates are fixedly installed on both sides of the driving block, and the telescopic plates are fixedly connected to the rotating disk. Through the settings of the partition plate and the telescopic plates, it effectively prevents the waste chips generated during the processing from entering the circular groove and the rectangular groove, thus affecting their normal operation.

[0009] Preferably, a plurality of ball bearings are rotatably installed at the upper end of the rotating seat. An arc-shaped groove is formed on the lower surface of the rotating disk, and the arc-shaped groove matches the ball bearings. By matching the arc-shaped groove with the ball bearings, the friction between the rotating disk and the rotating seat during rotation is greatly reduced, thereby reducing the driving torque of the first servo motor and extending its service life.

[0010] Preferably, connecting members are rotatably installed on both sides of the base. Through the setting of the connecting members, it is convenient for the fixture to be quickly connected to the machining center.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] A turning-milling composite processing fixture proposed by the present utility model drives a rotating shaft to rotate through a first servo motor, and drives a second gear to rotate. Since the second gear is in a meshing state with the first gear, the rotating disk is driven to rotate. During the rotation of the rotating disk, the clamping assembly is driven to rotate, and finally the workpiece is driven to rotate, so that it can cooperate with turning and milling for processing, improving the processing efficiency. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 3 It is a schematic diagram of the base structure of the present utility model;

[0016] Figure 4 It is a schematic diagram of the rotating disk structure of the present utility model;

[0017] Figure 5 It is a schematic diagram of the rotating disk structure of the present utility model;

[0018] Figure 6 It is a schematic diagram of the clamping assembly structure of the present utility model.

[0019] In the figure: 1. Base; 11. Connecting piece; 12. Circular groove; 13. Rotating seat; 14. Ball bearing; 15. Partition board; 16. Driving mechanism; 161. First servo motor; 162. Rotating shaft; 163. Second gear; 2. Rotating disk; 21. First gear; 22. Rectangular groove; 23. Arc groove; 3. Clamping assembly; 31. Driving part; 311. Bi-directional lead screw; 312. Second servo motor; 313. Fixing part; 32. Clamping part; 321. Driving block; 322. Clamping block; 323. Rubber block; 324. Telescopic plate; 33. Elastic part; 331. Spring; 332. Arc plate; 333. Slide block. Detailed Implementation Modes

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with the accompanying drawings.

[0022] Combined with Figure 1-4, A turning-milling composite machining fixture, including a base 1. Inside the base 1, there is a rotating disk 2. Inside the rotating disk 2, there is a clamping assembly 3. On the upper surface of the base 1, there is a circular groove 12. Inside the circular groove 12, there is a rotating seat 13 fixedly installed. The rotating disk 2 is rotatably installed at the upper end of the rotating seat 13. On the outside of the rotating disk 2, there is a first gear 21 fixedly installed. Inside the circular groove 12, there is a driving mechanism 16. The driving mechanism 16 includes a first servo motor 161 fixedly connected to the surface of the circular groove 12. At the output end of the first servo motor 161, there is a rotating shaft 162 fixedly installed. At the upper end of the rotating shaft 162, there is a second gear 163 fixedly installed. The second gear 163 is meshed with the first gear 21. By driving the rotating shaft 162 to rotate with the first servo motor 161, and driving the second gear 163 to rotate. Since the second gear 163 and the first gear 21 are in a meshed state, the rotating disk 2 is driven to rotate. During the rotation of the rotating disk 2, the clamping assembly 3 is driven to rotate, and finally the workpiece is driven to rotate, enabling it to cooperate with turning and milling for machining, improving the machining efficiency.

[0023] Combined with Figure 4 , Figure 6 , on the upper surface of the rotating disk 2, there is a rectangular groove 22. The clamping assembly 3 includes a driving part 31. On the outside of the driving part 31, there are two groups of clamping parts 32. Inside the rectangular groove 22, there is a bidirectional lead screw 311 rotatably installed. At the driving end of the bidirectional lead screw 311, there is a second servo motor 312 fixedly installed. On the outside of the second servo motor 312, there is a fixing part 313 fixedly installed. The fixing part 313 is fixedly connected to the surface of the rectangular groove 22. On the outside of the bidirectional lead screw 311, there is a driving block 321 threadedly installed. At the upper end of the driving block 321, there is a clamping block 322 fixedly installed. On one side of the clamping block 322, there is a rubber block 323 fixedly installed. There are two groups of clamping parts 32, and their structural compositions and functions are exactly the same and are symmetrically arranged. By driving the bidirectional lead screw 311 to rotate with the second servo motor 312, the two groups of clamping parts 32 are driven to move towards the center of the bidirectional lead screw 311 at the same time to complete the clamping of the workpiece. The setting of the rubber block 323 effectively prevents indentation on the surface of the workpiece caused by excessive clamping force, thereby affecting the machining quality.

[0024] Combined with Figure 6, elastic members 33 are provided on the other sides of both groups of clamping members 32. The structures and functions of the two groups of elastic members 33 are exactly the same. The elastic member 33 includes a spring 331 fixedly connected to the clamping block 322. One end of the spring 331 away from the clamping block 322 is fixedly installed with an arc-shaped plate 332. On both sides of one end of the arc-shaped plate 332 close to the spring 331, sliders 333 are fixedly installed. The sliders 333 are slidably connected to the clamping block 322. When it is necessary to clamp a tubular workpiece, first move the two groups of clamping members 32 to the center of the bidirectional lead screw 311, then place the workpiece on the outside, and then drive the two groups of clamping members 32 to expand outwards until the arc-shaped plate 332 contacts the inner wall of the workpiece and compresses the spring 331, which realizes the rapid clamping of the tubular workpiece and plays a certain buffering role during contact to prevent damage to the workpiece.

[0025] Combined with Figure 3-4 , Figure 6 , a partition plate 15 is fixedly installed at the upper end of the base 1. The partition plate 15 is rotatably connected to the rotating disk 2. Telescopic plates 324 are fixedly installed on both sides of the driving block 321. The telescopic plates 324 are fixedly connected to the rotating disk 2. Through the settings of the partition plate 15 and the telescopic plates 324, it effectively prevents the waste chips generated during the processing from entering the circular groove 12 and the rectangular groove 22, thereby affecting their normal operation.

[0026] Combined with Figure 3 , Figure 5 , a plurality of ball bearings 14 are rotatably installed at the upper end of the rotating seat 13. An arc-shaped groove 23 is formed on the lower surface of the rotating disk 2. The arc-shaped groove 23 is matched with the ball bearings 14. By matching the arc-shaped groove 23 with the ball bearings 14, the friction between the rotating disk 2 and the rotating seat 13 during rotation is greatly reduced, thereby reducing the driving torque of the servo motor 161 and further extending its service life.

[0027] Combined with Figure 3 , connecting members 11 are rotatably installed on both sides of the base 1. Through the setting of the connecting members 11, it is convenient for the fixture to be quickly connected to the machining center.

[0028] The specific working process and principle of the present utility model are as follows: First, it is quickly connected to the machining center through the connecting member 11, and then the bidirectional lead screw 311 is driven to rotate by the second servo motor 312, driving the two clamping members 32 to move towards the center of the bidirectional lead screw 311 simultaneously to complete the clamping of the workpiece. When clamping a tubular workpiece, first move the two clamping members 32 to the center of the bidirectional lead screw 311, then place the workpiece on the outside, and drive the two clamping members 32 to expand outwards until the arc-shaped plate 332 contacts the inner wall of the workpiece, compressing the spring 331, realizing the quick clamping of the tubular workpiece, and playing a certain buffering role during contact to prevent damage to the workpiece. During the machining process, the first servo motor 161 drives the rotating shaft 162 to rotate, and drives the second gear 163 to rotate. Since the second gear 163 is in mesh with the first gear 21, the rotating disk 2 is driven to rotate. During the rotation of the rotating disk 2, the clamping assembly 3 is driven to rotate, and finally the workpiece is driven to rotate, enabling it to cooperate with turning and milling for processing, improving the processing efficiency. The driving block 321 drives the telescopic plate 324 to expand and contract during the process to prevent waste chips from entering.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A turning and milling composite machining fixture, comprising a base (1), a rotating disk (2) is arranged inside the base (1), and a clamping assembly (3) is arranged inside the rotating disk (2), characterized in that: The upper surface of the base (1) is provided with a circular groove (12), a rotating seat (13) is fixedly installed inside the circular groove (12), a rotating disk (2) is rotatably installed on the upper end of the rotating seat (13), a gear (21) is fixedly installed on the outer side of the rotating disk (2), a driving mechanism (16) is arranged inside the circular groove (12), the driving mechanism (16) comprises a servo motor (161) fixedly connected to the surface of the circular groove (12), a rotating shaft (162) is fixedly installed at the output end of the servo motor (161), a gear (163) is fixedly installed on the upper end of the rotating shaft (162), and the gear (163) is meshedly connected with the gear (21).

2. The turning and milling composite machining fixture according to claim 1, characterized in that: The upper surface of the rotating disk (2) is provided with a rectangular groove (22); the clamping assembly (3) comprises a driving member (31); two groups of clamping members (32) are arranged on the outer side of the driving member (31); a bidirectional screw rod (311) is rotatably mounted inside the rectangular groove (22); a servo motor 2 (312) is fixedly mounted on the driving end of the bidirectional screw rod (311); a fixing member (313) is fixedly mounted on the outer side of the servo motor 2 (312); the fixing member (313) is fixedly connected to the surface of the rectangular groove (22); a driving block (321) is threadedly mounted on the outer side of the bidirectional screw rod (311); a clamping block (322) is fixedly mounted on the upper end of the driving block (321); and a rubber block (323) is fixedly mounted on one side of the clamping block (322).

3. The turning and milling composite machining fixture according to claim 2, characterized in that: The other sides of the two groups of clamping members (32) are both provided with elastic members (33), and the structures and functions of the two groups of elastic members (33) are completely the same. The elastic member (33) comprises a spring (331) fixedly connected to the clamping block (322), an arc plate (332) is fixedly installed on one end of the spring (331) away from the clamping block (322), and sliding blocks (333) are fixedly installed on both sides of one end of the arc plate (332) close to the spring (331), and the sliding blocks (333) are slidably connected to the clamping block (322).

4. The turning-milling composite machining fixture according to claim 1, characterized in that: A partition plate (15) is fixedly mounted on the upper end of the base (1), and the partition plate (15) is rotatably connected to the rotating disk (2). Telescopic plates (324) are fixedly mounted on both sides of the driving block (321), and the telescopic plates (324) are fixedly connected to the rotating disk (2).

5. The turning-milling composite machining fixture according to claim 1, characterized in that: A plurality of ball bearings (14) are rollingly mounted on the upper end of the rotating seat (13), and an arc groove (23) is provided on the lower surface of the rotating disk (2), and the arc groove (23) matches the ball bearings (14).

6. The turning-milling composite machining fixture according to claim 1, characterized in that: Connecting pieces (11) are rollably mounted on both sides of the base (1).

Images