Special profile clamp for machining center

Abstract

The utility model discloses a special section bar clamp for a machining center, and relates to the technical field of section bar clamps, the special section bar clamp for the machining center comprises a machining center, the machining center comprises a working table, a cutting mechanism is arranged above the working table, and a cutting driving mechanism is arranged at the end part of the working table. The cutting driving mechanism is in transmission connection with the cutting mechanism; an opening and closing driving seat is fixedly connected to the workbench and comprises a groove sliding seat, C-shaped clamping frames are symmetrically and movably connected to the upper portion of the groove sliding seat, a connecting shaft rod is connected to the bottom of each C-shaped clamping frame in an inserted mode, and the two sides of each connecting shaft rod penetrate through the corresponding C-shaped clamping frame and are fixedly connected with pin shaft plates. According to the utility model, the ejector rods at different positions move independently according to the shapes of the profiles, so that the profiles with different shapes can be clamped, and the clamp does not need to be replaced when the profiles with different shapes are clamped, and the time consumption for replacing the clamp is reduced.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of profile clamps, in particular to a special clamp for profiles used in a machining center. Background Art

[0002] The machining center is a CNC machine tool with comprehensive functions. Workers need to program the program in advance according to the drawings. Then, after the CNC system receives the program instructions, it will control the rotation of the spindle, the feed of the tool, and the action of the automatic tool changer according to the data in the program.

[0003] A fixture for fixing the workpiece is installed on the processing platform of the machining center. The special fixture for profiles is a tool specially used to fix and position profiles for processing, assembly or testing, and uses extrusion force to fix the profiles.

[0004] However, in practice, people have noticed that special clamps can only clamp materials of a single shape. When changing the profile, the clamp needs to be replaced together, which takes a long time to replace the clamp. Only after the clamp is replaced can the workpiece be clamped, resulting in low processing efficiency. In addition, profiles of different materials require different clamping forces. If the clamping force is too small, it is easy to affect the fixing effect. If the clamping force is too large, it is easy to cause deformation of the profile and affect the processing quality. Therefore, it also takes a long time to adjust the clamping force, which further affects the processing efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a special clamp for profiles used in a machining center, which can clamp profiles of various shapes through elastic clamping rods arranged in a rectangular array, and can fix the top rods at different positions separately through locking bolts, so that it becomes a special clamp for a single profile, and the clamp does not need to be replaced when the profile is replaced, thus shortening the time consumption when replacing the clamp, so as to solve the technical problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A special fixture for profiles used in a machining center comprises a machining center, the machining center comprises a workbench, a cutting mechanism is arranged above the workbench, a cutting drive mechanism is arranged at the end of the workbench, and the cutting drive mechanism is transmission-connected with the cutting mechanism;

[0008] The workbench is fixedly connected with an opening and closing drive seat, which includes a groove slide, and a C-type clamping frame is symmetrically and movably connected above the groove slide. A connecting shaft is inserted at the bottom of each C-type clamping frame, and pin plates are fixedly connected on both sides of the connecting shaft that pass through the C-type clamping frame, and the pin plates are fixedly connected to the middle position of the groove slide.

[0009] As a further technical solution of the present utility model, a compound threaded rod is movably connected to the inner side of the groove sliding seat. A servo motor is fixedly connected to the end of the groove sliding seat, and the end of the servo motor penetrates through the groove sliding seat and is in transmission connection with any section of the compound threaded rod through a coupling.

[0010] As a further technical solution of the present utility model, hinge assemblies are symmetrically arranged in the groove sliding seat. One end of each hinge assembly is movably connected to the groove sliding seat, and the other end is movably connected to the bottom of the C-shaped clamping bracket.

[0011] As a further technical solution of the present utility model, the hinge assembly includes a slider slidably connected to the groove sliding seat, and the slider is threadedly connected to both ends of the compound threaded rod;

[0012] Symmetric fixed ear plates are integrally arranged on the slider. A hinge plate is movably connected between the two fixed ear plates, and one end of the hinge plate away from the fixed ear plate is movably connected to the bottom of the C-shaped clamping bracket.

[0013] As a further technical solution of the present utility model, elastic clamping rods are arranged in a rectangular array in each C-shaped clamping bracket, and a locking bolt corresponding to the elastic clamping rod is threadedly connected to the side surface of the C-shaped clamping bracket.

[0014] As a further technical solution of the present utility model, the elastic clamping rod includes a top rod. The top rod is slidably connected to the C-shaped clamping bracket, and a baffle is integrally arranged at the end of the top rod penetrating through the C-shaped clamping bracket. The other end of the top rod is integrally provided with an external thread, and a corresponding threaded knob is threadedly connected to the end of the top rod.

[0015] As a further technical solution of the present utility model, a spring is also sleeved on the outer side of the top rod, and both ends of the spring are respectively in contact with the side surface of the threaded knob and the side surface of the C-shaped clamping bracket.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] In this utility model, the symmetrically arranged C-shaped clamping brackets approach each other, pushing the end of the ejector rod in the C-shaped clamping bracket to fit against the outer side of the profile. The ejector rod slides inside the C-shaped clamping bracket, and the ejector rods at different positions move independently according to the shape of the profile, so that profiles of different shapes can be clamped. Furthermore, when clamping profiles of different shapes, there is no need to replace the fixture, reducing the time consumption during fixture replacement. In this utility model, through the screw drive between the double-threaded screw rod and the slider, the slider drives the symmetrically arranged C-shaped clamping brackets to open or close through the hinge plate, thereby completing the rapid clamping of the profile, further shortening the time consumption during the clamping process of the workpiece, and thus improving the work efficiency. In this utility model, when the threaded knob is rotated, since the threaded knob is threadedly connected to the ejector rod, the threaded knob will move on the ejector rod while rotating, squeezing the spring, and the clamping force can be adjusted according to the material of the profile to prevent the profile from deforming due to excessive clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the utility model in the working state.

[0019] Figure 2 In the utility model Figure 1 partial enlarged schematic diagram.

[0020] Figure 3 In the utility model Figure 1 partial structural schematic diagram.

[0021] Figure 4 In the utility model Figure 3 partial enlarged schematic diagram.

[0022] Figure 5 In the utility model Figure 3 partial enlarged schematic diagram.

[0023] Figure 6 is a three-dimensional structural schematic diagram of the opening and closing drive seat in the utility model.

[0024] Figure 7 is a three-dimensional structural schematic diagram of the elastic clamping rod in the utility model.

[0025] In the figure:

[0026] Outer housing - 1, workbench - 2, cutting drive mechanism - 3, opening and closing drive seat - 4, groove slider - 41, double-threaded screw rod - 42, pin shaft plate - 43, connecting shaft rod - 44, C-shaped clamping bracket - 5, elastic clamping rod - 6, ejector rod - 61, baffle - 62, threaded knob - 63, spring - 64, hinge assembly - 7, slider - 71, fixed ear plate - 72, hinge plate - 73, servo motor - 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-7 , the embodiments of the present invention provide a special fixture for profiles used in a machining center, including a machining center. The machining center includes a workbench 2. Above the workbench 2, there is a cutting mechanism. At the end of the workbench 2, there is a cutting drive mechanism 3, and the cutting drive mechanism 3 is in transmission connection with the cutting mechanism;

[0029] A opening and closing drive seat 4 is fixedly connected to the workbench 2. The opening and closing drive seat 4 includes a groove slide seat 41. Above the groove slide seat 41, C-shaped clamping frames 5 are symmetrically and movably connected. At the bottom of each C-shaped clamping frame 5, a connecting shaft rod 44 is inserted. On both sides of the connecting shaft rod 44, pin shaft plates 43 are fixedly connected through the C-shaped clamping frame 5, and the pin shaft plates 43 are fixedly connected to the middle position of the groove slide seat 41.

[0030] In this embodiment, a compound threaded rod 42 is movably connected to the inner side of the groove slide seat 41. At the end of the groove slide seat 41, a servo motor 8 is fixedly connected, and the end of the servo motor 8 penetrates through the groove slide seat 41 and is in transmission connection with any section of the compound threaded rod 42 through a coupling.

[0031] In this embodiment, hinge assemblies 7 are symmetrically arranged in the groove slide seat 41. One end of each hinge assembly 7 is movably connected to the groove slide seat 41, and the other end is movably connected to the bottom of the C-shaped clamping frame 5.

[0032] In this embodiment, the hinge assembly 7 includes a slider 71 slidably connected to the groove slide seat 41, and the slider 71 is threadedly connected to both ends of the compound threaded rod 42;

[0033] Symmetric fixed ear plates 72 are integrally arranged on the slider 71. A hinge plate 73 is movably connected between the two fixed ear plates 72, and one end of the hinge plate 73 away from the fixed ear plates 72 is movably connected to the bottom of the C-shaped clamping frame 5.

[0034] In this embodiment, elastic clamping rods 6 are arranged in a rectangular array in each C-shaped clamping frame 5, and a locking bolt corresponding to the elastic clamping rod 6 is threadedly connected to the side of the C-shaped clamping frame 5.

[0035] In this embodiment, the elastic clamping rod 6 includes a top rod 61. The top rod 61 is slidably connected to the C-shaped clamping bracket 5, and the end of the top rod 61 penetrates through the C-shaped clamping bracket 5 and is integrally provided with a baffle 62. The other end of the top rod 61 is integrally provided with an external thread, and a corresponding threaded knob 63 is threadedly connected to the end of the top rod 61.

[0036] In this embodiment, a spring 64 is also sleeved on the outer side of the top rod 61, and both ends of the spring 64 are respectively in contact with the side surface of the threaded knob 63 and the side surface of the C-shaped clamping bracket 5.

[0037] By adopting the above technical solution, first place the profile between two symmetrically arranged C-shaped clamping brackets 5, and then through the threaded transmission between the slider 71 and the double-threaded rod 42, when the double-threaded rod 42 rotates, it drives the sliders 71 on both sides to slide outward, and through the hinge plate 73, it pushes the symmetrically arranged C-shaped clamping brackets 5 to approach each other. The end of the top rod 61 is in contact with the outer side of the profile. As the C-shaped clamping bracket 5 moves, the top rods 61 at different positions slide inside the C-shaped clamping bracket 5 until the symmetrically arranged C-shaped clamping brackets 5 are in contact with each other. The spring 64 applies a reverse acting force to the top rod 61 to clamp the profile. Since the multiple arranged top rods 61 are arranged in a rectangular array, different-shaped profiles can be clamped without replacing the fixture, increasing the applicable occasions. Finally, tighten the locking bolts at the corresponding positions to lock the position of the top rod 61.

[0038] In this embodiment, the bottom of the workbench 2 is movably connected to a base, the outer side of the base is fixedly connected to an outer protective shell 1, and the workbench 2 is located inside the outer protective shell 1, which can prevent the chips after cutting from splashing during the working process and improve the safety during use.

[0039] In this embodiment, symmetric connecting ear plates are integrally provided on one side of the bottom of the C-shaped clamping bracket 5 far from the connecting shaft rod 44. The connecting ear plates are respectively located on both sides of the end of the hinge plate 73, and the connecting ear plates and the end of the hinge plate 73 are movably connected through a pin shaft.

[0040] In this embodiment, the end of the top rod 61 far from the baffle 62 is spherical. The end of the top rod 61 is in contact with the outer surface of the profile. The spherical end surface can prevent scratches on the profile surface during the clamping process and improve the protection effect when clamping the profile.

[0041] In this embodiment, the end of the locking bolt on the side of the C-shaped clamping bracket 5 penetrates through the C-shaped clamping bracket 5 and is in contact with the side of the top rod 61. Tighten the locking bolt. Since the locking bolt is threadedly connected to the C-shaped clamping bracket 5, the end of the locking bolt will approach the top rod 61 and squeeze the top rod 61, thereby fixing the position of the top rod 61.

[0042] The working principle of the present utility model is as follows: When in use, first place the profile between two symmetrically arranged C-shaped clamping brackets 5, and then drive the double-threaded rod 42 to rotate through the servo motor 8. Due to the screw drive between the slider 71 and the double-threaded rod 42, when the double-threaded rod 42 rotates, it drives the sliders 71 on both sides to slide outward, and through the hinge plate 73, it pushes the symmetrically arranged C-shaped clamping brackets 5 to approach each other. The end of the ejector rod 61 abuts against the outer side of the profile. As the C-shaped clamping bracket 5 moves, the ejector rods 61 at different positions slide on the inner side of the C-shaped clamping bracket 5 until the symmetrically arranged C-shaped clamping brackets 5 are in contact with each other. The spring 64 applies a reverse force to the ejector rod 61 to clamp the profile. Finally, tighten the locking bolts at the corresponding positions to lock the position of the ejector rod 61, forming a special fixing fixture for a single profile. And because the multiple ejector rods 61 are arranged in a rectangular array, different-shaped profiles can be clamped without replacing the fixture, increasing the applicable scenarios; the structure is simple and the operation is very convenient.

[0043] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0044] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A special fixture for profiles used in a machining center, characterized in that: It includes a machining center, which includes a workbench (2). Above the workbench (2), there is a cutting mechanism. At the end of the workbench (2), there is a cutting drive mechanism (3), and the cutting drive mechanism (3) is in transmission connection with the cutting mechanism; A switching drive seat (4) is fixedly connected to the workbench (2). The switching drive seat (4) includes a groove slide seat (41). Above the groove slide seat (41), C-shaped clamping brackets (5) are symmetrically and movably connected. At the bottom of each C-shaped clamping bracket (5), a connecting shaft rod (44) is inserted. On both sides of the connecting shaft rod (44) passing through the C-shaped clamping bracket (5), pin shaft plates (43) are fixedly connected, and the pin shaft plates (43) are fixedly connected to the middle position of the groove slide seat (41).

2. The special fixture for profiles used in a machining center according to claim 1, wherein: A compound threaded rod (42) is movably connected to the inside of the groove slide seat (41). At the end of the groove slide seat (41), a servo motor (8) is fixedly connected, and the end of the servo motor (8) passes through the groove slide seat (41) and is in transmission connection with any section of the compound threaded rod (42) through a coupling.

3. The special fixture for profiles used in a machining center according to claim 2, characterized in that: Hinge assemblies (7) are symmetrically arranged in the groove slide seat (41). One end of each hinge assembly (7) is movably connected to the groove slide seat (41), and the other end is movably connected to the bottom of the C-shaped clamping bracket (5).

4. The special fixture for profiles used in a machining center according to claim 3, characterized in that: The hinge assembly (7) includes a slider (71) slidably connected to the groove slide seat (41), and the slider (71) is threadedly connected to both ends of the compound threaded rod (42); Symmetric fixed ear plates (72) are integrally provided on the slider (71). A hinge plate (73) is movably connected between the two fixed ear plates (72). One end of the hinge plate (73) away from the fixed ear plates (72) is movably connected to the bottom of the C-shaped clamping bracket (5).

5. The special fixture for profiles used in a machining center according to claim 1, characterized in that: Elastic clamping rods (6) are arranged in a rectangular array in each C-shaped clamping bracket (5). A locking bolt corresponding to the elastic clamping rod (6) is threadedly connected to the side of the C-shaped clamping bracket (5).

6. The special fixture for profiles used in a machining center according to claim 5, characterized in that: The elastic clamping rod (6) includes a top rod (61). The top rod (61) is slidably connected to the C-shaped clamping bracket (5), and the end of the top rod (61) passes through the C-shaped clamping bracket (5) and is integrally provided with a baffle (62). The other end of the top rod (61) is integrally provided with an external thread, and a corresponding threaded knob (63) is threadedly connected to the end of the top rod (61).

7. The special fixture for profiles used in a machining center according to claim 6, characterized in that: A spring (64) is also sleeved on the outside of the top rod (61), and both ends of the spring (64) are respectively in contact with the side of the threaded knob (63) and the side of the C-shaped clamping bracket (5).

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