Self-adaptive positioning device of machining center

Abstract

The utility model discloses a self-adaptive positioning device of a machining center, which relates to the technical field of machining centers and comprises a support plate, a cylinder fixed on a vertical frame, a clamping component mounted on a sliding column and used for clamping a workpiece, a servo motor fixed on the support plate, an opposite sliding component in transmission connection with the servo motor, and a positioning component mounted on the opposite sliding component. The opposite sliding assembly is used for driving the clamping assembly to linearly slide, and an elastic supporting assembly used for bearing a workpiece is fixed to the supporting plate. The air cylinder drives the abutting arc plate to move downwards to abut against the workpiece, so that the workpiece moves downwards and abuts against the outer conical faces of the clamping columns, the clamping columns are far away from each other, after the end of the workpiece extends into the clamping columns, the inner conical faces abut against the clamping columns, and the self-adaptive clamping effect on the end of the workpiece is achieved; and the opposite sliding assembly can drive the two clamping columns to move in the opposite direction, the workpiece is further locked, and the workpiece clamping and positioning process is efficient and firm in operation.

Description

Technical Field

[0001] The utility model relates to the technical field of machining centers, in particular to an adaptive positioning device for a machining center. Background Art

[0002] A machining center is a comprehensive CNC machine tool capable of performing a variety of operations, including milling, boring, drilling, and tapping, to meet the machining needs of complex parts. It is often equipped with an automatic tool changer, allowing it to complete multiple machining steps in a single setup, significantly improving machining efficiency and precision.

[0003] When a cylindrical workpiece is processed by a machining center, the workpiece needs to be clamped and positioned with the help of a positioning device. However, the existing positioning device cannot be adaptively adjusted according to the diameter of the rod-shaped workpiece, resulting in the need to frequently operate the positioning device structure, which is not conducive to improving the clamping efficiency and stability of the cylindrical workpiece. Therefore, in response to the above-mentioned technical defects of the prior art, an adaptive positioning device for a machining center is proposed to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide an adaptive positioning device for a machining center to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] As an improved solution of the present invention: the clamping assembly includes a clamping column fixed to the end of the sliding column, the interior of the clamping column is provided with an inner conical surface, and the exterior of the clamping column is provided with an outer conical surface.

[0008] As an improved solution of the present invention: the clamping assembly further comprises a fixing collar fixedly sleeved on the sliding post, a spring ring is fixed between the fixing collar and the support seat, and a clamping block slidably embedded on the sliding post is fixed on the support seat.

[0009] As an improved solution of the present invention: the opposing sliding assembly includes two coaxially fixed threaded rods with opposite thread rotation directions that are rotatably mounted on the support seat, a sliding frame located between a fixed collar and a clamping column is threadedly sleeved on the threaded rods, the sliding frame is slidably sleeved on the sliding column, the output shaft of the servo motor is coaxially fixed with the threaded rods, and the sliding frame is slidably mounted on the support plate.

[0010] As an improved solution of the present invention: the elastic support assembly includes a U-shaped frame that slides vertically through the support plate, a support arc plate for supporting the workpiece is fixed on the U-shaped frame, a vertical rod is fixed to the bottom of the support plate, the U-shaped frame is slidably sleeved on the vertical rod, and a support spring is fixed between the U-shaped frame and the support plate.

[0011] As an improved solution of the present invention: clamping plates are rotatably mounted on both ends of the supporting arc plate, a torsion spring is fixed between the clamping plates and the supporting arc plate, and a wedge surface is provided on the clamping plates.

[0012] As an improved solution of the present invention: a plurality of guide rollers distributed along the arc line are rotatably mounted on the bottom of the push arc plate, and the guide rollers are in contact with the surface of the workpiece.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The cylinder provided in the utility model drives the arc plate to move downward to abut against the workpiece, so that the workpiece moves downward and pushes the outer conical surface of the clamping column, so that the clamping columns move away from each other. After the end of the workpiece extends to the inside of the clamping column, the inner conical surface abuts against the clamping column, thereby achieving an adaptive clamping effect on the end of the workpiece, and the opposing sliding components can drive the two clamping columns to move toward each other, thereby further locking the workpiece, and the workpiece clamping and positioning process is efficient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the structure from a certain perspective;

[0017] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0018] Figure 4 For this utility model Figure 3 Schematic diagram from a certain perspective;

[0019] Figure 5 This is a schematic diagram of the connection between the supporting arc plate, the clamping plate and the torsion spring in the present invention;

[0020] Figure 6 This is a schematic diagram of the connection between the cylinder, the arc-pushing plate and the guide roller in the utility model.

[0021] In the figure: 1-support plate, 2-vertical frame, 3-cylinder, 4-push arc plate, 5-support seat, 6-sliding column, 7-clamping column, 8-servo motor, 9-mounting seat, 10-U-shaped frame, 11-clamping plate, 12-threaded rod, 13-sliding frame, 14-fixing ring, 15-spring ring, 16-vertical rod, 17-outer cone, 18-inner cone, 19-block, 20-support arc plate, 21-torsion spring, 22-wedge surface, 23-guide roller, 24-support spring. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments:

[0023] Example 1

[0024] See also Figure 1-6 , an adaptive positioning device for a machining center, comprising a support plate 1, a vertical frame 2 arranged vertically fixed on the support plate 1, a cylinder 3 fixed on the vertical frame 2, a plurality of mounting seats 9 fixed on the bottom of the support plate 1, a pair of support seats 5 fixed on the support plate 1, a sliding column 6 is slidably mounted on each support seat 5, a clamping assembly for clamping a workpiece is installed on the sliding column 6, a servo motor 8 is fixed on the support plate 1, and an opposing sliding assembly is connected to the servo motor 8 for transmission, the opposing sliding assembly is used to drive the clamping assembly to slide linearly, an elastic support assembly for carrying the workpiece is fixed on the support plate 1, and a push arc plate 4 is fixed on the telescopic end of the cylinder 3, and the push arc plate 4 abuts against the workpiece.

[0025] This positioning device is installed on the support plate 1 through the mounting seat 9. The rod-shaped workpiece is laterally supported by the elastic support component. The cylinder 3 drives the arc plate 4 to move vertically downward, so as to push the workpiece between the clamping components and axially clamp the workpiece through the clamping component.

[0026] Specifically, the clamping assembly includes a clamping post 7 fixed to the end of the sliding post 6. The interior of the clamping post 7 defines an inner conical surface 18, and the exterior of the clamping post 7 defines an outer conical surface 17. The clamping assembly also includes a fixing collar 14 fixedly sleeved on the sliding post 6. A spring coil 15 is fixed between the fixing collar 14 and the support base 5. The support base 5 is fixed with a clamping block 19 that is slidably embedded in the sliding post 6.

[0027] In addition, the opposing sliding assembly includes two coaxially fixed threaded rods 12 with opposite thread rotation directions that are rotatably mounted on the support seat 5. A sliding frame 13 located between the fixed ring 14 and the clamping column 7 is threadedly sleeved on the threaded rod 12. The sliding frame 13 is slidably sleeved on the sliding column 6. The output shaft of the servo motor 8 is coaxially fixed with the threaded rod 12, and the sliding frame 13 is slidably mounted on the support plate 1.

[0028] Through the above arrangement, when the workpiece moves vertically downward, the end of the workpiece first abuts against the outer conical surface 17, and the two clamping columns 7 move in opposite directions. Then, the end of the workpiece extends to the inside of the clamping column 7 and abuts against the inner conical surface 18. Under the elastic pushing action of the spring coil 15, the two clamping columns 7 can quickly clamp the workpiece axially.

[0029] The servo motor 8 is provided to drive the threaded rod 12 to rotate, and the threaded rod 12 drives the sliding frame 13 to slide relative to the support plate 1. At this time, the sliding frame 13 pushes the clamping column 7 to move, and the two clamping columns 7 move toward each other to achieve a secure locking of the workpiece.

[0030] Example 2

[0031] See also Figure 1-6 On the basis of Example 1, in addition, the elastic support component of the present device includes a U-shaped frame 10 that vertically slides through the support plate 1, a support arc plate 20 for supporting the workpiece is fixed on the U-shaped frame 10, a vertical rod 16 is fixed to the bottom of the support plate 1, the U-shaped frame 10 is slidably sleeved on the vertical rod 16, and a support spring 24 is fixed between the U-shaped frame 10 and the support plate 1.

[0032] In the process of pushing the arc plate 4 vertically downward and pushing the workpiece, the workpiece moves vertically downward and pushes the supporting arc plate 20. At this time, the supporting arc plate 20 drives the U-shaped frame 10 to move vertically downward. The supporting arc plate 20 plays a role in vertically supporting the workpiece, ensuring stable adjustment and positioning of the workpiece.

[0033] In addition, clamps 11 are rotatably installed at both ends of the supporting arc plate 20, and a torsion spring 21 is fixed between the clamp 11 and the supporting arc plate 20. A wedge surface 22 is provided on the clamp 11. When the workpiece moves vertically downward, the workpiece pushes against the wedge surface 22, and the clamp 11 rotates. The workpiece is on the supporting arc plate 20, and under the elastic action of the torsion spring 21, the clamp 11 rotates and clamps the workpiece, so that the workpiece is stably laterally positioned when it moves vertically downward, further improving the positioning effect of the workpiece.

[0034] A number of guide rollers 23 distributed along the arc are rotatably installed at the bottom of the arc-pushing plate 4 of this device. The guide rollers 23 are in contact with the surface of the workpiece. The guide rollers 23 can rotate relative to the arc-pushing plate 4, so that when the clamping column 7 is pushed, it drives the workpiece to rotate under the drive of the guide rollers 23, making it easier for the workpiece to move downward and push the clamping column 7, thereby greatly improving the positioning effect of the workpiece.

[0035] To sum up, the cylinder 3 provided in the present invention drives the arc plate 4 to move downward to abut against the workpiece, so that the workpiece moves downward and pushes the outer conical surface 17 of the clamping column 7, so that the clamping columns 7 move away from each other. After the end of the workpiece extends to the inside of the clamping column 7, it abuts against the clamping column 7 with the help of the inner conical surface 18, thereby realizing an adaptive clamping effect on the end of the workpiece, and the opposing sliding components can drive the two clamping columns 7 to move toward each other, thereby further locking the workpiece, and the workpiece clamping and positioning process is efficient and reliable.

Claims

1. An adaptive positioning device for a machining center, comprising a support plate (1), a vertical frame (2) arranged vertically fixed on the support plate (1), a cylinder (3) fixed on the vertical frame (2), characterized in that: A plurality of mounting seats (9) are fixed to the bottom of the support plate (1), a pair of support seats (5) are fixed on the support plate (1), a slide column (6) is slidably mounted on each of the support seats (5), a clamping assembly for clamping the workpiece is mounted on the slide column (6), a servo motor (8) is fixed on the support plate (1), a counter-sliding assembly is connected to the servo motor (8), and the counter-sliding assembly is used to drive the clamping assembly to slide linearly, an elastic support assembly for carrying the workpiece is fixed on the support plate (1), and a push arc plate (4) is fixed to the telescopic end of the cylinder (3), and the push arc plate (4) is in contact with the workpiece.

2. The adaptive positioning device for a machining center according to claim 1, characterized in that: The clamping assembly comprises a clamping column (7) fixed to the end of the sliding column (6), an inner conical surface (18) is provided inside the clamping column (7), and an outer conical surface (17) is provided outside the clamping column (7).

3. The adaptive positioning device for a machining center according to claim 2, characterized in that: The clamping assembly further comprises a fixing collar (14) fixedly sleeved on the slide post (6), a spring ring (15) being fixed between the fixing collar (14) and the support seat (5), and a clamping block (19) being slidably embedded on the slide post (6) being fixed on the support seat (5).

4. The adaptive positioning device for a machining center according to claim 3, characterized in that: The opposing sliding assembly comprises two threaded rods (12) which are coaxially fixed and have opposite thread rotation directions and are rotatably mounted on the support seat (5); a sliding frame (13) which is located between a fixed collar (14) and a clamping column (7) is threadedly sleeved on the threaded rod (12); the sliding frame (13) is slidably sleeved on the sliding column (6); the output shaft of the servo motor (8) is coaxially fixed with the threaded rod (12); and the sliding frame (13) is slidably mounted on the support plate (1).

5. The adaptive positioning device for a machining center according to claim 1, characterized in that: The elastic support assembly comprises a U-shaped frame (10) that vertically slides through the support plate (1); a support arc plate (20) for supporting a workpiece is fixed on the U-shaped frame (10); a vertical rod (16) is fixed to the bottom of the support plate (1); the U-shaped frame (10) is slidably sleeved on the vertical rod (16); and a support spring (24) is fixed between the U-shaped frame (10) and the support plate (1).

6. The adaptive positioning device for a machining center according to claim 5, characterized in that: Clamping plates (11) are rotatably mounted on both ends of the supporting arc plate (20), a torsion spring (21) is fixed between the clamping plates (11) and the supporting arc plate (20), and a wedge surface (22) is provided on the clamping plates (11).

7. The adaptive positioning device for a machining center according to claim 1, characterized in that: A plurality of guide rollers (23) distributed along the arc line are rotatably mounted on the bottom of the arc-pushing plate (4), and the guide rollers (23) are in contact with the surface of the workpiece.

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