Numerical control tool clamping structure

Abstract

The utility model is applicable to the technical field of numerical control cutters, and provides a numerical control cutter clamping structure which comprises a mounting plate, a connecting seat, a fixed clamp and a movable clamp, one end of the movable clamp is connected with a positioning block, one end of the connecting seat is correspondingly provided with a positioning groove, and one end of the fixed clamp and one end of the movable clamp are connected with clamping plates. And two sets of locking structures are arranged in the connecting seat, and each locking structure comprises a rotating block, a locking block, a connecting block, a bearing seat, a mounting groove and a threaded rod. According to the numerical control tool clamping structure, through the arrangement of the threaded rod, the mounting groove and the connecting block, the distance between the two clamps can be conveniently adjusted, a tool is clamped and fixed, through the arrangement of the damping bearing, the locking block, the locking ring and the inserting rod, the threaded rod is axially restrained, the situation that the clamps are loosened due to rotation of the threaded rod is avoided, and the machining precision is improved. And stable clamping of the cutter is ensured, and the stability and reliability of the device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control tools, and in particular relates to a numerical control tool clamping structure. Background Art

[0002] CNC machine tool is the abbreviation of digitally controlled machine tool, which is an automated machine tool equipped with a program control system. With the emergence and development of CNC machine tools, various simple parts of corresponding CNC machine tools have also come out one after another, and tool clamping mechanism is one of them.

[0003] The utility model of Chinese patent application number CN202022292894.X discloses a tool clamping mechanism for a CNC machine tool that is easy to replace, including a clamping plate, the clamping plate is fixedly mounted on the head of the CNC machine tool, and a left clamp and a right clamp are provided on the clamping plate, the left clamp is fixedly mounted on the left side of the front end of the clamping plate; the right clamp is movably arranged on the right side of the front end of the clamping plate; a magnetic attraction mechanism is provided on the inner side of the right clamp, the magnetic attraction mechanism includes an iron core and a coil, the coil is evenly wound and mounted on the outer surface of the iron core, the iron core and the coil are fixedly mounted in a notch provided in the right clamp; a magnet is provided at a position on the inner side of the left clamp corresponding to the magnetic attraction mechanism provided on the inner side of the right clamp, and the magnet is fixedly mounted on the inner side of the left clamp; a tool clamping block is provided at the relative position of the left clamp and the right clamp, and the tool clamping blocks are respectively fixedly mounted on the front ends of the left clamp and the right clamp; the utility model greatly improves work efficiency.

[0004] The above-mentioned existing patented device utilizes a left clamp and a right clamp and a magnetic structure to achieve the clamping and fixation of the tool. However, during processing, the magnetic force of the magnetic structure formed by the iron core and the coil will be affected by the unit area and the ambient temperature. When the tool is processing, the temperature may change, thereby having a certain impact on the stability. Utility Model Content

[0005] The utility model provides a CNC tool clamping structure, which aims to solve the problem that during machining operations, the magnetic attraction force of the magnetic attraction structure formed by the iron core and the coil is affected by the unit area and the ambient temperature. When the tool is machining, the temperature may change, thereby causing a certain impact on stability.

[0006] The utility model is implemented as follows: a CNC tool clamping structure includes a mounting plate, a connecting seat, a fixed clamp and a movable clamp, one end of the mounting plate is connected to the connecting seat, one end of the connecting seat is just connected to the fixed clamp, and one end of the connecting seat is provided with a movable clamp; one end of the movable clamp is connected to a positioning block, one end of the connecting seat is correspondingly provided with a positioning groove, one end of the fixed clamp and the movable clamp are connected to a clamping plate; a locking structure is provided inside the connecting seat, and the locking structure includes a rotating block, a locking block, a connecting block, a bearing seat, a mounting slot and a threaded rod.

[0007] Preferably, a mounting groove is provided at one end of the connecting seat, a bearing seat is installed on the inner side wall of the mounting groove, a threaded rod is connected to one end of the bearing seat, one end of the threaded rod passes through the mounting plate and is connected to a locking block, and one end of the locking block is connected to a rotating block; a connecting block is provided on the outside of the threaded rod, one end of the connecting block passes through the connecting seat and is fixedly connected to the movable clamp.

[0008] Preferably, the bearing seat is a damping bearing, the outside of the bearing seat is fixedly connected to the connecting seat, and the shaft core of the bearing seat is fixedly connected to the threaded rod.

[0009] Preferably, the cross section of the connecting block is T-shaped, and the cross section of the mounting groove is T-shaped.

[0010] Preferably, a locking ring is provided on the outside of the locking block, one end of the locking ring is provided with a through groove matching the locking block, one end of the locking ring is equally connected to a plurality of insertion rods, one end of the insertion rods passes through the connecting seat.

[0011] Preferably, one end of the rotating block is connected to a handle, and the width of the handle is greater than the diameter of the locking block.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] By setting the threaded rod, mounting groove and connecting block, the distance between the two clamps can be easily adjusted to achieve clamping and fixation of the tool. By setting the damping bearing, locking block, locking ring and insert rod, axial constraint of the threaded rod is achieved to avoid loosening of the clamp caused by rotation of the threaded rod, ensure stable clamping of the tool, improve the stability and reliability of the device, and reduce loosening and falling of the tool caused by environmental factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the partial assembly structure of the utility model;

[0017] Figure 4 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the utility model.

[0018] In the figure: 1. Mounting plate; 2. Connecting seat; 3. Fixed clamp; 4. Positioning block; 5. Positioning slot; 6. Clamp; 7. Movable clamp; 8. Locking structure; 81. Rotating block; 82. Locking block; 83. Locking ring; 84. Connecting block; 85. Bearing seat; 86. Mounting slot; 87. Threaded rod; 88. Handle; 89. Insert rod. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The embodiment of the present utility model provides a CNC tool clamping structure, such as Figure 1-3 As shown, it includes a mounting plate 1, a connecting seat 2, a fixed clamp 3 and a movable clamp 7, one end of the mounting plate 1 is connected to the connecting seat 2, one end of the connecting seat 2 is just connected to the fixed clamp 3, and one end of the connecting seat 2 is provided with a movable clamp 7; one end of the movable clamp 7 is connected to a positioning block 4, one end of the connecting seat 2 is correspondingly provided with a positioning groove 5, one end of the fixed clamp 3 and the movable clamp 7 are connected to a clamping plate 6; two groups of locking structures 8 are provided inside the connecting seat 2, and the locking structure 8 includes a rotating block 81, a locking block 82, a connecting block 84, a bearing seat 85, a mounting groove 86 and a threaded rod 87.

[0022] It should be noted that the existing patented equipment uses the left clamp and the right clamp and the magnetic structure to achieve the clamping and fixation of the tool. However, during processing, the magnetic structure formed by the iron core and the coil will be affected by the unit area and the ambient temperature. When the tool is processing, the temperature may change, which will have a certain impact on the stability. This solution achieves stable clamping of the tool through the setting of the locking structure 8, avoids loosening of the clamping caused by environmental factors, and improves the stability and reliability of the device.

[0023] Specifically, in this embodiment, this solution mainly includes a mounting plate 1, a connecting seat 2, a fixed clamp 3, a positioning block 4, a positioning groove 5, a clamp 6, a movable clamp 7 and a locking structure 8. The threaded rod 87, the connecting block 84 and the mounting groove 86 of the locking structure 8 are used to facilitate the adjustment of the spacing size between the movable clamp 7 and the fixed clamp 3, thereby realizing the clamping and fixing operation of the tool.

[0024] In a further preferred embodiment of the present invention, Figure 2-3 As shown, one end of the connecting seat 2 is provided with two mounting grooves 86, and the inner side wall of the mounting groove 86 is installed with a bearing seat 85, one end of the bearing seat 85 is connected to a threaded rod 87, one end of the threaded rod 87 passes through the mounting plate 1 and is connected to a locking block 82, and one end of the locking block 82 is connected to a rotating block 81; the outer side of the threaded rod 87 is provided with a connecting block 84, one end of the connecting block 84 passes through the connecting seat 2 and is fixedly connected to the movable clamp 7.

[0025] In this embodiment, the bearing seat 85 and the threaded rod 87 and the locking block 82 and the rotating block 81 are arranged in conjunction with the axial constraint of the mounting groove 86 on the connecting block 84, so that the connecting block 84 is adjusted in the horizontal direction as the threaded rod 87 rotates, thereby adjusting the spacing size between the fixed clamp 3 and the movable clamp 7 to achieve the clamping effect on the tool.

[0026] In a further preferred embodiment of the present invention, the bearing seat 85 is a damping bearing, the exterior of the bearing seat 85 is fixedly connected to the connecting seat 2 , and the shaft core of the bearing seat 85 is fixedly connected to the threaded rod 87 .

[0027] In this embodiment, the bearing seat 85 made of a damping bearing is used to increase the axial resistance of the threaded rod 87 during rotation, thereby reducing the possibility of the threaded rod 87 rotating on its own and avoiding loosening that affects the tool clamping effect.

[0028] In a further preferred embodiment of the present invention, the cross section of the connecting block 84 is T-shaped, and the cross section of the mounting groove 86 is T-shaped.

[0029] In this embodiment, the T-shaped connecting block 84 and the mounting groove 86 are used to reduce the stress on the threaded rod 87 .

[0030] In a further preferred embodiment of the present invention, a locking ring 83 is provided on the outside of the locking block 82, a magnet is provided at one end of the locking ring 83, a through groove matching the locking block 82 is opened at one end of the locking ring 83, and a plurality of insertion rods 89 are equally connected to one end of the locking ring 83, and one end of the insertion rod 89 passes through the connecting seat 2.

[0031] In this embodiment, the locking ring 83 and the locking block 82 are set, and the locking ring 83 is constrained by the insertion rod 89 to achieve axial constraint of the locking block 82 and the threaded rod 87. The magnet on the locking ring 83 is adsorbed on the connecting seat 2, and the magnetic force is used to counteract the slight vibration generated during the processing to prevent the locking ring 83 from falling off.

[0032] In a further preferred embodiment of the present invention, one end of the rotating block 81 is connected to a handle 88 , and the width of the handle 88 is greater than the diameter of the locking block 82 .

[0033] In this embodiment, the displacement position of the locking ring 83 is restricted by the arrangement of the handle 88 and the size design of the locking block 82 .

[0034] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0035] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0036] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. CNC tool clamping structure, characterized in that: It comprises a mounting plate (1), a connecting seat (2), a fixed clamp (3) and a movable clamp (7), wherein one end of the mounting plate (1) is connected to the connecting seat (2), one end of the connecting seat (2) is just connected to the fixed clamp (3), and one end of the connecting seat (2) is provided with a movable clamp (7); One end of the movable clamp (7) is connected to a positioning block (4), one end of the connecting seat (2) is correspondingly provided with a positioning groove (5), and one end of the fixed clamp (3) and the movable clamp (7) are connected to a clamping plate (6); Two sets of locking structures (8) are arranged inside the connecting seat (2), and the locking structure (8) comprises a rotating block (81), a locking block (82), a connecting block (84), a bearing seat (85), a mounting groove (86) and a threaded rod (87).

2. The CNC tool clamping structure according to claim 1, characterized in that: One end of the connecting seat (2) is provided with two mounting grooves (86), the inner side wall of the mounting groove (86) is provided with a bearing seat (85), one end of the bearing seat (85) is connected with a threaded rod (87), one end of the threaded rod (87) passes through the mounting plate (1) and is connected with a locking block (82), and one end of the locking block (82) is connected with a rotating block (81); The threaded rod (87) is sleeved with a connecting block (84) on its exterior, one end of the connecting block (84) passes through the connecting seat (2) and is fixedly connected to the movable clamp (7).

3. The CNC tool clamping structure according to claim 1, characterized in that: The bearing seat (85) is a damping bearing. The outside of the bearing seat (85) is fixedly connected to the connecting seat (2). The shaft core of the bearing seat (85) is fixedly connected to the threaded rod (87).

4. The CNC tool clamping structure according to claim 1, characterized in that: The cross section of the connecting block (84) is T-shaped, and the cross section of the mounting groove (86) is T-shaped.

5. The CNC tool clamping structure according to claim 1, characterized in that: The locking block (82) is sleeved with a locking ring (83) on its exterior, one end of the locking ring (83) is provided with a through groove matching the locking block (82), one end of the locking ring (83) is equally connected to a plurality of insertion rods (89), one end of the insertion rods (89) passes through the connecting seat (2).

6. The CNC tool clamping structure according to claim 1, characterized in that: One end of the rotating block (81) is connected to a handle (88), and the width of the handle (88) is greater than the diameter of the locking block (82).

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