Clamping jaw device capable of quickly setting tool and adjusting clamping jaw

Abstract

The invention discloses a clamping jaw device capable of quickly setting a tool and adjusting a clamping jaw, and belongs to the technical field of machining. The clamping jaw device comprises a chuck, a plurality of fan-shaped dials and a plurality of clamping jaw units; the plurality of fan-shaped dials are uniformly arranged on the chuck along the circumferential direction of the chuck, each fan-shaped dial is provided with a plurality of arc lines taking the center of the chuck as the circle center, the diameters corresponding to the plurality of arc lines on each fan-shaped dial are different, and the side edge of each fan-shaped dial is provided with scale marks; each clamping jaw unit comprises a sliding block and a clamping jaw, the sliding blocks are slidably arranged on the chuck in the radial direction of the chuck, first racks arranged in the radial direction of the chuck are arranged on the top faces of the sliding blocks, and second racks arranged in the radial direction of the chuck are arranged on the bottom faces of the clamping jaws. According to the clamping jaw device capable of achieving rapid tool setting and clamping jaw adjustment, tool setting and clamping jaw adjustment can be rapidly completed, operation is easy, consumed time is short, no tool needs to be used, and therefore the working efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of machining technology, specifically relating to a chuck device that enables rapid tool setting and chuck adjustment. Background Technology

[0002] Chucks are commonly used in machining, and there are both manual and automatic types. In some machining processes, such as lathe chucks, the workpiece is placed above the chuck, and multiple chuck jaws are moved by hydraulic pressure to fix the workpiece. Then, a motor drives the chuck to rotate, while the machining tool is responsible for cutting.

[0003] Currently, in machining, tool setting and chuck adjustment are key preparatory steps before workpiece processing. In traditional operations, workers need to determine the tool position through trial cutting or manual measurement, and then adjust the chuck clamping position using tools such as wrenches and steel rulers. These operations have the following drawbacks: they are cumbersome, time-consuming, and result in low production efficiency. Summary of the Invention

[0004] In view of the above-mentioned defects or improvement needs of the existing technology, the present invention provides a chuck device that can quickly adjust the tool setting and chuck. Its purpose is to: quickly complete the tool setting and chuck adjustment, which is simple to operate, takes little time, and does not require any tools, thereby greatly improving work efficiency.

[0005] To achieve the above objectives, the present invention provides a chuck device for rapid tool setting and chuck adjustment, the chuck device comprising a chuck, multiple sector-shaped dials, and multiple chuck units; Multiple sector-shaped dials are evenly arranged on the chuck along the circumference of the chuck. Each sector-shaped dial has multiple arcs centered on the center of the chuck. The diameters of the multiple arcs on each sector-shaped dial are different. At least one side of each sector-shaped dial has a scale line. Each scale line represents the distance from the corresponding scale line to the center of the chuck. The ends of each arc line coincide with the corresponding scale line. Multiple jaw units are evenly arranged around the circumference of the chuck, and each jaw unit is located between two sector-shaped dials. Each jaw unit includes a slider and a jaw. Each slider is slidably arranged on the chuck along the radial direction. A first rack is provided on the top surface of the slider and arranged radially along the chuck. A second rack is provided on the bottom surface of the jaw and arranged radially along the chuck. The second rack meshes with the first rack. The multiple jaws are used to clamp the workpiece.

[0006] Optionally, at least one of the sector-shaped dials is provided with a tool calibration line, which extends along the movement trajectory of the tool on the machine tool, so that the tool tip is parallel to the tool calibration line after the tool is installed.

[0007] Optionally, the top surface of the chuck has a plurality of spaced positioning grooves, and each of the sector-shaped dials is provided with a positioning block, and each positioning block is inserted into the corresponding positioning groove.

[0008] Optionally, each of the sector-shaped dials is fitted with a plurality of spaced connecting bolts, and the thread of each connecting bolt passes through the sector-shaped dial and connects to the chuck.

[0009] Optionally, the chuck has a plurality of spaced guide grooves, each guide groove being an inverted T-shaped structure, each guide groove extending radially along the chuck, each slider being an inverted T-shaped structure, and each slider being slidably inserted into the corresponding guide groove.

[0010] Optionally, the two opposite sides of each slider are respectively slidably engaged with the sides of the two adjacent sector-shaped dials.

[0011] Optionally, the height of each first rack above the chuck is 5-10 mm.

[0012] Optionally, the side of each of the jaws facing the center of the chuck is a clamping plane, and each clamping plane is parallel to the scale of the corresponding scale line.

[0013] Optionally, the chuck has a clearance hole at its center.

[0014] Optionally, each of the claws is provided with a plurality of spaced mounting holes, and a locking bolt is movably inserted into each of the mounting holes. The thread of each locking bolt passes through the claw and connects to the corresponding slider.

[0015] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0016] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include: The chuck device for rapid tool setting and chuck adjustment provided in this embodiment of the invention has the following advantages: Firstly, since at least one side of each sector-shaped scale is provided with a scale line, and each scale line represents the distance from the corresponding scale line to the center of the chuck (i.e., the minimum distance between the extension direction of each scale line and the center of the chuck, i.e., the distance in the vertical direction), the ends of each arc line coincide with the corresponding scale line. Thus, during tool setting, the tool tip can be adjusted to align with the corresponding arc line, and the scale line corresponding to the arc line can be read. This is the distance from the tool tip to the center line of the chuck at this time. Inputting this distance into the machine tool completes rapid tool setting without the need for any tools for measurement.

[0017] On the other hand, the scale lines on the fan-shaped dial can be used to determine the initial position of each jaw, ensuring that the distance between each jaw and the center of the chuck is the same before clamping. This ensures that the workpiece is clamped synchronously after the subsequent hydraulic mechanism drives multiple sliders to slide the same distance (the sliders drive the jaws to move), ensuring that the workpiece is concentric with the chuck after clamping. Furthermore, since a first rack arranged radially along the chuck is provided on the top surface of the slider, and a second rack arranged radially along the chuck is provided on the bottom surface of the jaw, with the second rack meshing with the first rack, when clamping workpieces of different sizes, the position and stroke of the slider and the corresponding hydraulic transmission structure can remain unchanged. Only the position of the jaws relative to the slider (i.e., indicated by the scale lines to the final position) needs to be adjusted, and then the jaws are re-engaged by the racks. This allows for rapid adjustment of multiple jaws without the need for any tools and adapts to clamping workpieces of different sizes.

[0018] In other words, the chuck device provided in this embodiment of the invention can quickly complete the tool setting and chuck adjustment. It is simple to operate, takes little time, and does not require any tools, thereby greatly improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a chuck device that allows for rapid tool setting and chuck adjustment, provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of the sector-shaped dial provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the claw unit provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the chuck structure provided in an embodiment of the present invention.

[0020] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Chuck; 11. Positioning groove; 12. Guide groove; 13. Clearance hole; 2. Fan-shaped dial; 21. Arc; 22. Scale line; 221. Scale; 23. Tool calibration line; 24. Positioning block; 25. Connecting bolt; 3. Claw unit; 31. Slider; 311. First rack; 32. Claw; 321. Second rack; 322. Clamping plane; 323. Mounting hole; 100. Tool; 200. Tool holder. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] Example: Figure 1 This is a schematic diagram of a chuck device for rapid tool setting and chuck adjustment provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the chuck device includes a chuck 1, multiple sector-shaped dials 2, and multiple chuck units 3.

[0027] Figure 2 This is a schematic diagram of the structure of the sector-shaped dial provided in an embodiment of the present invention, as shown below. Figure 2 As shown, multiple sector-shaped dials 2 are evenly arranged on the chuck 1 around the circumference of the chuck 1. Each sector-shaped dial 2 has multiple arc lines 21 with the center of the chuck 1 as the center. The diameters of the multiple arc lines 21 on each sector-shaped dial 2 are different. At least one side of each sector-shaped dial 2 is provided with a scale line 22. Each scale 221 on each scale line 22 is the distance from the corresponding scale 221 to the center of the chuck 1. The end of each arc line 21 coincides with the corresponding scale 221 of the scale line 22.

[0028] Multiple jaw units 3 are evenly arranged along the circumference of the chuck 1, and each jaw unit 3 is located between two sector-shaped dials 2.

[0029] Figure 3 This is a schematic diagram of the claw unit provided in an embodiment of the present invention, as shown below. Figure 3 As shown, each jaw unit 3 includes a slider 31 and a jaw 32. Each slider 31 is slidably arranged on the chuck 1 radially. A first rack 311 is provided on the top surface of the slider 31 and arranged radially along the chuck 1. A second rack 321 is provided on the bottom surface of the jaw 32 and arranged radially along the chuck 1. The second rack 321 meshes with the first rack 311. Multiple jaws 32 are used to clamp the workpiece.

[0030] Regarding the chuck device for rapid tool setting and chuck adjustment provided in this embodiment of the invention, on the one hand, since at least one side of each fan-shaped scale 2 is provided with a scale line 22, and each scale 221 on each scale line 22 is the distance from the corresponding scale 221 to the center of the chuck 1 (that is, the minimum distance between the extension direction corresponding to each scale 221 and the center of the chuck 1, i.e., the distance in the vertical direction), the end of each arc line 21 coincides with the corresponding scale 221 of the scale line 22, so that the tool tip can be adjusted to align with the corresponding arc line 21 during tool setting, and the scale 221 corresponding to the arc line 21 on the scale line 22 can be read, which is the distance from the tool tip to the center line of the chuck 1 at this time. This distance can be input into the machine tool to complete rapid tool setting without the need for any tools for measurement.

[0031] On the other hand, the scale line 22 of the fan-shaped dial 2 can be used to determine the initial position of each jaw 32, ensuring that the distance between each jaw 32 and the center of the chuck 1 is the same before clamping. This ensures that the workpiece is clamped synchronously after the subsequent hydraulic mechanism drives multiple sliders 31 to slide the same distance (the sliders 31 drive the jaws 32 to move), ensuring that the workpiece is concentric with the chuck 1 after clamping. Furthermore, since the top surface of the slider 31 is provided with a first rack 311 arranged radially along the chuck 1, and the bottom surface of the jaw 32 is provided with a second rack 321 arranged radially along the chuck 1, and the second rack 321 meshes with the first rack 311, when clamping workpieces of different sizes, the position and stroke of the slider 31 and the corresponding hydraulic transmission structure can remain unchanged. Only the position of the jaw 32 relative to the slider 31 needs to be adjusted (i.e., indicated by the scale line 221 on the scale line 22 to the final position), and then the jaws are re-engaged by the racks. This allows for rapid adjustment of multiple jaws 32 without the need for any tools and is adaptable to clamping workpieces of different sizes.

[0032] In other words, the chuck device provided in this embodiment of the invention can quickly adjust the tool and chuck 32, which is simple to operate, takes little time, and does not require any tools, thereby greatly improving work efficiency.

[0033] For example, the number of sector-shaped dials 2 and claw units 3 can be either 3 or 4, and the present invention does not limit this. The distance between two adjacent arc lines 21 is 10 mm.

[0034] For example, the chuck 1 has a clearance hole 13 at its center, which can avoid the bottom end of the workpiece and prevent the chuck 1 from interfering with the workpiece.

[0035] In one implementation of the present invention, at least one sector-shaped dial 2 is provided with a tool calibration line 23, which extends along the movement trajectory of the tool 100 on the machine tool, so that the tip of the tool 100 is parallel to the tool calibration line 23 after the tool 100 is installed.

[0036] In the above embodiment, the tool 100 can be calibrated by setting a tool calibration line 23 that is the same as the movement trajectory of the tool 100, so as to avoid the tool tip and the movement trajectory of the tool 100 having an angle after the tool 100 is installed on the tool holder 200, which would affect the subsequent turning process.

[0037] For example, the angle between the tool calibration line 23 and the machine tool table can be 45° or 60°.

[0038] Figure 4 This is a schematic diagram of the chuck structure provided in an embodiment of the present invention, as shown below. Figure 4As shown, the top surface of the chuck 1 has multiple spaced positioning grooves 11, and each sector-shaped dial 2 is provided with a positioning block 24, which is inserted into the corresponding positioning groove 11.

[0039] In the above embodiment, the positioning groove 11 and the positioning block 24 can achieve precise positioning of the fan-shaped dial 2, thereby ensuring the accuracy of the arc line 21 and the scale line 22.

[0040] For example, both the positioning groove 11 and the positioning block 24 are square structures.

[0041] Furthermore, each sector-shaped dial 2 is fitted with multiple spaced connecting bolts 25, and the thread of each connecting bolt 25 passes through the sector-shaped dial 2 and connects to the chuck 1, thereby achieving a reliable connection between the sector-shaped dial 2 and the chuck 1 through the connecting bolts 25.

[0042] See also Figure 1 and Figure 4 The chuck 1 has multiple spaced guide grooves 12, each guide groove 12 being an inverted T-shaped structure, extending radially along the chuck 1. Each slider 31 is also an inverted T-shaped structure, and each slider 31 is slidably inserted into its corresponding guide groove 12. The guide grooves 12 provide reliable guidance for the sliders 31, while the inverted T-shaped structure prevents the sliders 31 from detaching from the guide grooves 12 during sliding.

[0043] In one implementation of the present invention, the two opposite sides of each slider 31 are respectively in sliding engagement with the sides of two adjacent sector-shaped dials 2.

[0044] In the above embodiment, by sliding the slider 31 with the two sector-shaped dials 2, the problem of the slider 31 moving laterally toward the sector-shaped dials 2 during the subsequent clamping process, which would affect the stability of the workpiece clamping, can be avoided.

[0045] For example, when adjusting the position of the jaw 32 to clamp workpieces of different sizes, firstly, the jaw 32 is moved upward; then, according to the scale 221 on the scale line 22, the jaw 32 is slid along the side of the fan-shaped scale 2 to the corresponding position. Finally, the jaw 32 is moved downward so that it engages with the slider 31 again.

[0046] In addition, each first rack 311 is 5-10mm higher than the chuck 1, thereby preventing iron chips from moving from the chuck 1 to the rack during turning and affecting the meshing of the rack.

[0047] See also Figure 1 Each jaw 32 has a clamping plane 322 on the side facing the center of the chuck 1, and each clamping plane 322 is parallel to the scale 221 of the corresponding scale line 22.

[0048] It is easy to understand that the clamping plane 322 can prevent the chuck 32 from damaging the workpiece during the clamping process, and the parallelism between the clamping plane 322 and the scale 221 of the scale line 22 can facilitate the reading of the clamping plane 322 and the quick adjustment of the position of the chuck 32 according to the scale 221.

[0049] In addition, each jaw 32 is provided with multiple spaced mounting holes 323, and a locking bolt is movably inserted into each mounting hole 323. The thread of each locking bolt passes through the jaw 32 and connects to the corresponding slider 31. That is, when the jaw device is not in a processing state, the jaw 32 can be locked by multiple locking bolts to prevent the jaw 32 from falling off or being lost from the slider 31.

[0050] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A chuck device for rapid tool setting and chuck adjustment, characterized in that, The jaw device includes a chuck, multiple sector-shaped dials, and multiple jaw units; Multiple sector-shaped dials are evenly arranged on the chuck along the circumference of the chuck. Each sector-shaped dial has multiple arcs centered on the center of the chuck. The diameters of the multiple arcs on each sector-shaped dial are different. At least one side of each sector-shaped dial has a scale line. Each scale line represents the distance from the corresponding scale line to the center of the chuck. The ends of each arc line coincide with the corresponding scale line. Multiple jaw units are evenly arranged around the circumference of the chuck, and each jaw unit is located between two sector-shaped dials. Each jaw unit includes a slider and a jaw. Each slider is slidably arranged on the chuck along the radial direction. A first rack is provided on the top surface of the slider and arranged radially along the chuck. A second rack is provided on the bottom surface of the jaw and arranged radially along the chuck. The second rack meshes with the first rack. The multiple jaws are used to clamp the workpiece.

2. The chuck device for rapid tool setting and chuck adjustment according to claim 1, characterized in that, At least one of the said sector-shaped dials is provided with a tool calibration line, which extends along the movement trajectory of the tool on the machine tool, so that the tool tip is parallel to the tool calibration line after the tool is installed.

3. The chuck device for rapid tool setting and chuck adjustment according to claim 1, characterized in that, The top surface of the chuck has multiple spaced positioning grooves, and each of the fan-shaped dials is provided with a positioning block, with each positioning block inserted into the corresponding positioning groove.

4. The chuck device for rapid tool setting and chuck adjustment according to claim 3, characterized in that, Each of the aforementioned sector-shaped dials is fitted with a plurality of spaced connecting bolts, and the thread of each connecting bolt passes through the sector-shaped dial and connects to the chuck.

5. The chuck device for rapid tool setting and chuck adjustment according to claim 1, characterized in that, The chuck has multiple spaced guide grooves, each guide groove being an inverted T-shaped structure, each guide groove extending radially along the chuck, and each slider being an inverted T-shaped structure, each slider being slidably inserted into the corresponding guide groove.

6. The chuck device for rapid tool setting and chuck adjustment according to claim 1, characterized in that, The two opposite sides of each slider slide in engagement with the sides of the two adjacent sector-shaped dials.

7. The chuck device for rapid tool setting and chuck adjustment according to claim 1, characterized in that, The height of each first rack above the chuck is 5-10 mm.

8. A chuck device for rapid tool setting and chuck adjustment according to any one of claims 1-7, characterized in that, The side of each of the jaws facing the center of the chuck is a clamping plane, and each clamping plane is parallel to the scale of the corresponding scale line.

9. A chuck device for rapid tool setting and chuck adjustment according to any one of claims 1-7, characterized in that, The chuck has a clearance hole at its center.

10. A chuck device for rapid tool setting and chuck adjustment according to any one of claims 1-7, characterized in that, Each of the jaws is provided with a plurality of spaced mounting holes, and a locking bolt is movably inserted into each of the mounting holes. The thread of each locking bolt passes through the jaw and connects to the corresponding slider.

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