Clamping seat for numerical control cutter handle

Abstract

The clamping seat comprises a first plate body, a second plate body and a positioning plate clamped between the first plate body and the second plate body, a top pressing plate located at the top of the positioning plate is further hinged between the first plate body and the second plate body, and a top positioning block is arranged on the inner bottom wall of the top pressing plate; the first plate body, the second plate body and the positioning plate are provided with coaxial clamping holes, the clamping holes are all provided with openings allowing the numerical control cutter handle to be sleeved in in the radial direction, the positions, at the clamping holes, of the positioning plate continue to protrude towards the interior of the clamping holes to form a positioning ring, and the inner bottom wall of the positioning ring is provided with bottom positioning blocks protruding upwards. And after the top pressing plate rotates and is supported at the top of the positioning plate, the bottom positioning block and the bottom positioning block are correspondingly arranged up and down. By means of the clamping seat, the positioning position can be arranged in the middle, and the situation that the positioning position deviates is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control tool holder clamping, and specifically, to a clamping seat for a numerical control tool holder. Background Art

[0002] The clamping seat of a numerical control tool holder is also called a tool locking seat, and its main function is to position the numerical control tool holder so as to install a tool onto the numerical control tool holder or remove it from the numerical control tool holder. Currently, there are various types of clamping seats for numerical control tool holders, and most of them are combined seat structures. Generally, they include seat bodies in two directions. One is a vertical seat body that makes the numerical control tool holder in a horizontal state after the numerical control tool holder is clamped, and the other is a horizontal seat body that makes the numerical control tool holder in a vertical state after the numerical control tool holder is clamped. For this type of clamping seat, since two seat bodies are required to clamp the numerical control tool holder, the overall structure of the clamping seat is relatively large in volume and not light in weight.

[0003] Based on this, Chinese Patent Publication No. CN 213003778 U discloses a tool locking seat for a new type of numerical control tool holder, which removes the traditional horizontal seat body, making the structure more concise. However, in actual use, since the front plate provided with a positioning key and the positioning rod are offset to one side of the tool locking seat, and the installation space of the numerical control tool holder is jointly formed by the front plate, the clamping plate, the rear plate, and the positioning rod, this results in the positioning being offset to one side of the installation space, and it is difficult to achieve an ideal centered positioning state.

[0004] In addition, when this tool locking seat is installed on a corresponding workbench or installation platform, it can only be installed as a whole at the end of the workbench or installation platform, and cannot be installed more centrally on the workbench or installation platform surface. Moreover, it is installed by opening a plurality of connection holes on the workbench or installation platform and using screws to tighten, and this installation method is relatively single and has weak versatility. It is difficult to match a workbench or installation platform that only has installation slots instead of installation holes. And even if most tool locking seats can be matched, after connection, the overall positioning ability and stability are also weak. Summary of the Utility Model

[0005] To solve the problem that the existing tool locking seat cannot achieve centered positioning, the utility model provides a clamping seat for a numerical control tool holder with a new structure.

[0006] To achieve the above object, the clamping seat for a numerical control tool holder provided by the utility model includes a first plate body, a second plate body, and a positioning plate clamped between the first plate body and the second plate body. A top pressing plate is hinged between the first plate body and the second plate body and is located at the top of the positioning plate. The top pressing plate is provided with a top positioning block on its inner bottom wall.

[0007] The first plate body, the second plate body, and the positioning plate are provided with coaxial clamping holes. Openings for radially inserting a numerical control tool shank are formed in the clamping holes. The part of the positioning plate at the clamping hole extends further towards the inside of the clamping hole to form a positioning ring. An upwardly protruding bottom positioning block is provided on the inner bottom wall of the positioning ring. After the top pressing plate rotates and rests on the top of the positioning plate, the bottom positioning block is arranged corresponding to the top and bottom.

[0008] In an embodiment of the present invention, the numerical control tool shank is provided with an annular positioning groove at the clamping position. The positioning ring is positioned and clamped in the annular positioning groove. Axial positioning grooves are provided at positions corresponding to the top positioning block and the bottom positioning block in the annular positioning groove. The depth of the axial positioning groove is deeper than that of the annular positioning groove and axially penetrates both sides of the annular positioning groove.

[0009] Preferably, the axial positioning groove axially penetrates both sides of the annular positioning groove and then continues to extend to form a groove structure with an axial length wider than the width of the annular positioning groove. The top positioning block and the bottom positioning block both extend out positioning convex bodies on both sides. The top positioning block and the positioning convex bodies on both sides together form an integral top positioning part with an increased axial length. The bottom positioning block and the positioning convex bodies on both sides together form an integral bottom positioning part with an increased axial length.

[0010] In an embodiment of the present invention, the bottoms of the first plate body and the second plate body are respectively horizontally bent outwards to form base plates. The heights of the two base plates are the same. Mounting holes are formed in both base plates.

[0011] Preferably, both base plates are also provided with U-shaped mounting grooves with openings facing outwards on the sides. The opening size of the U-shaped mounting groove is larger than the size of the mounting hole.

[0012] In an embodiment of the present invention, the first plate body, the second plate body, and the positioning plate are of an integral structure. An installation base extends from the bottom of the integral structure. The thickness of the installation base is greater than or equal to the sum of the thicknesses of the first plate body, the second plate body, and the positioning plate. A U-shaped mounting groove with an opening facing outwards is formed in the middle of both sides of the installation base. Mounting holes are also formed at the ends of the installation base close to both sides.

[0013] Preferably, symmetrically arranged bottom grooves are also formed in the installation base. The bottom grooves penetrate both sides of the installation base. A positioning rail is also provided in the bottom grooves. The positioning rail is of an I-shaped structure. The upper half of the I-shaped structure is embedded in the bottom grooves, and the lower half of the I-shaped structure is embedded in the installation grooves of the workbench or the installation platform.

[0014] Beneficial effects: The clamping seat of the present utility model for a numerical control tool holder. Since the top pressing plate and the positioning plate are located in the middle of the first plate body and the second plate body, by providing a positioning ring on the positioning plate that protrudes towards the inside of the clamping hole, and respectively arranging the top positioning block and the bottom positioning block at the bottom of the top pressing plate and on the positioning ring of the positioning plate, in this way, compared with the prior art, the top positioning block and the bottom positioning block can be centered in the clamping seat and will not be offset to one side of the clamping seat, thereby achieving ideal centering positioning of the numerical control tool holder. Brief Description of the Drawings

[0015] Figure 1 It is a schematic perspective view of the first orientation of the clamping seat for a numerical control tool holder in Embodiment 3;

[0016] Figure 2 It is a schematic perspective view of the second orientation of the clamping seat for a numerical control tool holder in Embodiment 3;

[0017] Figure 3 It is a schematic perspective view of the first orientation of the clamping seat for a numerical control tool holder in Embodiment 2;

[0018] Figure 4 It is a schematic perspective view of the second orientation of the clamping seat for a numerical control tool holder in Embodiment 2;

[0019] Figure 5 It is a schematic perspective view of the clamping seat for a numerical control tool holder in a certain embodiment;

[0020] Figure 6 It is a schematic perspective view of the clamping seat for a numerical control tool holder in Embodiment 4;

[0021] Figure 7 It is a simple schematic diagram of the workbench. Detailed Embodiment

[0022] 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 of the embodiments.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] Embodiment 1

[0025] Based on the deficiency that the positioning of the existing knife locking seat is biased towards one side of the knife locking seat, the present utility model proposes a new structure for a numerical control tool holder, and through the optimization and improvement of the positioning structure, the purpose of centering positioning is finally achieved.

[0026] Specifically, as Figure 1-2 shown, the clamping seat for the numerical control tool holder includes a first plate body 1, a second plate body 2, and a positioning plate 3 clamped between the first plate body 1 and the second plate body 2. A top pressing plate 4 is hinged between the first plate body 1 and the second plate body 2 and is located at the top of the positioning plate 3. A top positioning block 5 is arranged on the inner bottom wall of the top pressing plate 4. After the top pressing plate 4 is arranged, it can pivot around a hinge axis (not marked) and be limited to press on the top of the positioning plate 3.

[0027] The first plate body 1, the second plate body 2, and the positioning plate 3 are provided with coaxial clamping holes 6. Openings 61 for the radial insertion of the numerical control tool holder 100 are provided on the clamping holes 6. And the part of the positioning plate 3 at the clamping hole 6 extends further towards the inner direction of the clamping hole 6 to form a positioning ring 7. An upwardly protruding bottom positioning block 8 is arranged on the inner bottom wall of the positioning ring 7. After the top pressing plate 4 rotates and is supported on the top of the positioning plate 3, the bottom positioning block 8 is arranged corresponding to the bottom positioning block 8 up and down.

[0028] Through the above settings, the top positioning block 5 and the bottom positioning block 8 are respectively located on the top pressing plate 4 and the positioning ring 7, and the positioning ring 7 is located on the positioning plate 3. Coupled with the fact that the top pressing plate 4 and the positioning plate 3 are located between the first plate body 1 and the second plate body 2, thus, the positioning of the numerical control tool holder 100 is centered on the clamping seat, avoiding offset, and forming a balance and cancellation of left and right, up and down forces during the clamping process. At the same time, under the positioning settings of the top positioning block 5 and the bottom positioning block 8, the special setting of the positioning ring 7 enhances the positioning of the numerical control tool holder 100 and forms a surrounding positioning. Compared with the block structure positioning relying solely on the top positioning block 5 and the bottom positioning block 8, the overall positioning and stability effect of the numerical control tool holder 100 after positioning are significantly increased.

[0029] In this embodiment, specifically for such as Figure 1-2The shown numerical control tool shank 100 is provided with an annular positioning groove 9 at the clamping position. The positioning ring 7 is positioned and clamped in the annular positioning groove 9. Axial positioning grooves 10 are provided at positions corresponding to the top positioning block 5 and the bottom positioning block 8 in the annular positioning groove 9. The depth of the axial positioning groove 10 is deeper than that of the annular positioning groove 9 and axially penetrates both sides of the annular positioning groove 9. After the numerical control tool shank 100 is arranged with the above structure, it matches the positioning structure on the clamping seat, thereby realizing its own positioning and clamping. It should be noted that in this embodiment, the axial positioning groove 10 is particularly optimized and improved so that its depth is deeper than that of the annular positioning groove 9, and a deeper positioning and clamping space is provided for the top positioning block 5 and the bottom positioning block 8.

[0030] Embodiment Two

[0031] On the basis of Embodiment One, considering that the existing top positioning block 5 is a plate body with a small volume and a small positioning area, after positioning, there is still too much positioning area left in the axial positioning groove 10. Therefore, in this embodiment, the top positioning block 5 is particularly optimized and improved. Specifically, refer to Figures 3-5 : The axial positioning groove 10 axially penetrates both sides of the annular positioning groove 9 and continues to extend to construct a groove body structure with an axial length wider than the groove width of the annular positioning groove 9. The top positioning block 5 radially extends out positioning convex bodies 11 on both sides. The positioning convex bodies 11 extend upward to the top of the top pressing plate 4 and downward to the bottom of the top positioning block 5. The top positioning block 5 and the positioning convex bodies 11 on both sides jointly form an integral top positioning part with an increased axial length. In this way, through the synchronous extension of the axial lengths of the axial positioning groove 10 and the top positioning block 5, the positioning contact area is increased during positioning, making the positioning more firm and reliable. At the same time, the axial positioning groove 10 is also filled with positioning, and compared with the existing empty space, the positioning effect is much better. In addition, the setting of the positioning convex bodies 11 increases the self-weight of the top pressing plate 4. After positioning, the top pressing plate 4 with increased self-weight can more tightly press on the positioning position.

[0032] Embodiment Three

[0033] Considering that the existing tool locking seat can only be installed at the end of the workbench and can only be installed on a workbench with an installation hole, to solve this problem, on the basis of Embodiment One, the following settings are made in this embodiment:

[0034] Refer to the appendix Figures 1-4, 7, the bottom parts of the first plate body 1 and the second plate body 2 are respectively bent horizontally outwards to form base plates 12, and the heights of the two base plates 12 are kept the same. Mounting holes 13 are provided on both base plates 12. Since the heights of the two base plates 12 are kept the same and the mounting holes 13 are also provided, it can be installed at the central position of the workbench 200 through the mounting holes 13. Of course, it is also possible to open holes at other positions on the top of the workbench 200 to realize the installation of the base plates 12.

[0035] For the installation platform 14 as shown in Figure 5 , only mounting grooves 15 are provided on the installation platform 14. In this embodiment, U-shaped mounting grooves 16 with openings facing outwards are also provided on the sides of both base plates 12, and the opening size of the U-shaped mounting grooves 16 is larger than the size of the mounting holes 13.

[0036] In this embodiment, by providing two base plates 12 with the same height and providing mounting holes 13 and U-shaped mounting grooves 16 on the two base plates 12, when connecting to the workbench 200, the mounting holes 13 can be selected for installation and connection; when corresponding to the installation platform 14, the U-shaped mounting grooves 16 can be selected for positioning installation. At this time, an inverted bolt (not shown) is sleeved into the mounting groove 15, so that the head of the bolt is limited in the mounting groove 15 and the rod part extends out of the mounting groove 15. Then the bolt is moved and the rod part is sleeved into the U-shaped mounting groove 16, and then a nut (not shown) is tightened on the rod part to complete the installation.

[0037] The installation structure provided by this embodiment is simple and convenient to operate as a whole, and can be adaptively installed on different types of platforms.

[0038] Embodiment Four

[0039] On the basis of Embodiment One, considering that the installation of the existing knife locking seat has a problem of low adaptability, and at the same time, even if the adaptive installation is satisfied, the overall positioning ability and stability are weak after the installation and connection, especially after long-term use. To solve these problems, in this embodiment, referring to Figures 5-7 , the first plate body 1, the second plate body 2, and the positioning plate 3 are designed as an integral structure. The bottom of this integral structure extends out an installation base 17, and the thickness of the installation base 17 is greater than or equal to the sum of the thicknesses of the first plate body 1, the second plate body 2, and the positioning plate 3. U-shaped mounting grooves 16 with openings facing outwards are provided in the middle of the two sides of the installation base 17, and mounting holes 13 are also provided at the ends of the installation base 17 close to the two sides. Correspondingly, symmetric bottom grooves 18 are also provided on the installation base 17, and the bottom grooves 18 penetrate through both sides of the installation base 17. A positioning rail 19 is provided in the bottom grooves 18. The positioning rail 19 is in an I-shaped structure. The upper half of this I-shaped structure is embedded in the bottom groove 18, and the lower half of this I-shaped structure is embedded in the mounting groove 15 of the installation platform 14.

[0040] During installation, if it is the workbench 200, holes can be drilled on the workbench 200, and the installation connection to the workbench 200 can be achieved through the installation holes 13 on the installation base 17; while when it is the installation platform 14, the upper half of the positioning rail 19 can be first sleeved into the bottom groove 18, and then, together with the clamping seat, approach the installation groove 15 of the installation platform 14, so that the lower half of the positioning rail 19 is also sleeved into the installation groove. Subsequently, as in the second embodiment, bolts and nuts are used to fix the clamping seat on the installation platform. During this process, since two positioning rails 19 are provided and symmetrically arranged, the force is balanced, and strengthening positioning is carried out on both sides of the bolt. Compared with the prior art where only the middle bolt is used for positioning, the positioning effect is significantly enhanced. More importantly, during installation, due to the symmetrical positioning of the positioning rails 19 on both sides of the bolt, the clamping seat can be quickly connected to the installation platform 14, and when the first bolt is tightened, the entire clamping seat will not shift. After connection, since the bottom of the clamping seat is fastened and positioned by the bolt in the middle, and the two sides are strengthened by the positioning rails 19, and the size and dimensions of the positioning rails 19 are basically matched with the size and shape of the installation groove 15 of the installation platform 14, the clamping seat can be firmly clamped on the installation platform 14 with basically no deviation, and it will not be affected even after long-term use.

[0041] The above content further elaborates on the present utility model in combination with specific embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as falling within the protection scope determined by the claims submitted for the present utility model.

Claims

1. A clamping seat for a CNC tool handle, characterized in that: It includes a first plate body, a second plate body, and a positioning plate clamped between the first plate body and the second plate body, a top pressure plate located at the top of the positioning plate is hinged between the first plate body and the second plate body, and a top positioning block is arranged on the inner bottom wall of the top pressure plate; The first plate body, the second plate body and the positioning plate are provided with coaxial clamping holes, the clamping holes are provided with openings for radial insertion of the CNC tool handle, and the portion of the positioning plate at the clamping hole continues to protrude toward the inside of the clamping hole to construct a positioning ring, and the positioning ring is provided with an upwardly protruding bottom positioning block on the inner bottom wall, and the bottom positioning block forms an upper and lower corresponding arrangement with the bottom positioning block after the top pressure plate rotates and is supported on the top of the positioning plate.

2. The clamping seat for a CNC tool handle according to claim 1, characterized in that: The CNC tool handle is provided with an annular positioning groove at the clamping position, the positioning ring positioning card is installed in the annular positioning groove, and the annular positioning groove is provided with axial positioning grooves at positions corresponding to the top positioning block and the bottom positioning block. The depth of the axial positioning groove is deeper than the annular positioning groove and axially penetrates both sides of the annular positioning groove.

3. The clamping seat for a CNC tool handle according to claim 2, characterized in that: The axial positioning groove axially penetrates both sides of the annular positioning groove and then continues to extend to construct a groove body structure whose axial length is wider than the width of the annular positioning groove, and the top positioning block and the bottom positioning block continue to extend positioning protrusions on both sides, and the top positioning block and the positioning protrusions on both sides together constitute an integrated top positioning part with an increased axial length, and the bottom positioning block and the positioning protrusions on both sides together constitute an integrated bottom positioning part with an increased axial length.

4. The clamping seat for a CNC tool handle according to claim 1, characterized in that: The bottoms of the first plate body and the second plate body are respectively bent outward horizontally to form base plates. The heights of the two base plates are consistent, and mounting holes are provided on the two base plates.

5. The clamping seat for a CNC tool handle according to claim 4, characterized in that: Both base plates are also provided with U-shaped installation grooves with openings facing outwards on the sides, and the opening size of the U-shaped installation grooves is larger than the size of the installation holes.

6. The clamping seat for a CNC tool handle according to claim 1, characterized in that: The first plate body, the second plate body and the positioning plate are an integrated structure, and a mounting base extends from the bottom of the integrated structure. The thickness of the mounting base is greater than or equal to the sum of the thicknesses of the first plate body, the second plate body and the positioning plate. The mounting base is provided with a U-shaped mounting groove opening outward in the middle of the two side portions, and the mounting base is also provided with mounting holes at the ends near the two side portions.

7. The clamping seat for a CNC tool handle according to claim 6, characterized in that: The mounting base is also provided with a symmetrical bottom groove which runs through both sides of the mounting base. A positioning rail is also provided in the bottom groove. The positioning rail is an I-shaped structure. The upper part of the I-shaped structure is embedded in the bottom groove, and the lower part of the I-shaped structure is embedded in the mounting groove of the workbench or the mounting platform.

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