Tool rest for machining thin and soft workpieces

Abstract

The utility model discloses a tool rest for machining thin and soft workpieces, which relates to the technical field of machining tools and comprises a supporting seat, a tool rest, a first fastener, a second fastener, a third fastener and a tool, the tool rest is detachably and fixedly connected with the supporting seat, and a working hole is formed in the middle of the tool rest and used for turning the workpieces to be turned; the first fastening piece is used for limiting a workpiece needing to be turned in the first direction; the second fastening piece is used for limiting the workpiece needing to be turned in the second direction; the third fastener is used for limiting the workpiece needing to be turned in the third direction; included angles among the first direction, the second direction and the third direction are 120 degrees; the tool and the tool rest slide in the direction close to or away from the second fastener and can keep the position after sliding, the structure is simple, use is convenient, the machining precision is effectively improved, and the machining efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing tools, in particular to a tool holder for processing delicate and soft workpieces. Background Art

[0002] Currently, there are many problems when turning delicate, soft, and long workpieces on lathes. Delicate and soft workpiece materials have poor rigidity and are easily deformed into a drum shape under the action of cutting force, which affects the processing accuracy. Delicate and soft materials have poor cutting performance, and the friction between the tool and the workpiece is large, which accelerates tool wear, increases tool costs and replacement time. Heat is not easy to dissipate during the cutting process, resulting in increased cutting temperature, aggravated tool wear and workpiece deformation. Therefore, low cutting speeds and feed rates are required when turning delicate and soft workpieces, which reduces processing efficiency. Compared with the existing patent CN 117464456A, the present invention can not only achieve the perpendicularity requirement of the transverse guide rail to the spindle axis by clamping the workpiece with three rolling bearings, but also ensure that the delicate and soft material does not deform during the turning process. Utility Model Content

[0003] The purpose of the utility model is to provide a tool holder for processing delicate and soft workpieces to solve the problems existing in the above-mentioned prior art. It has a simple structure, is easy to use, and can effectively improve processing accuracy and processing efficiency.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] The utility model provides a tool holder for processing delicate and soft workpieces, comprising: a support seat, a tool holder, a first fastener, a second fastener, a third fastener and a tool, the tool holder and the support seat being detachably fixedly connected, a working hole being provided in the middle of the tool holder, the working hole being used for allowing the workpiece to be turned; the first fastener and the tool holder slide in the radial direction of the working hole and can maintain the position after sliding to limit the workpiece to be turned from the first direction; the second fastener and the tool holder slide in the radial direction of the working hole and can maintain the position after sliding to limit the workpiece to be turned from the second direction; the third fastener and the tool holder slide in the radial direction of the working hole and can maintain the position after sliding to limit the workpiece to be turned from the third direction; the angle between the first direction, the second direction and the third direction is 120°; the tool and the tool holder slide in the direction approaching or moving away from the second fastener and can maintain the position after sliding.

[0006] Preferably, it also includes a first rolling member, a second rolling member and a third rolling member, the first rolling member is arranged at one end of the first fastener close to the workpiece to be turned so as to be rollingly connected to the workpiece to be turned, the second rolling member is arranged at one end of the second fastener close to the workpiece to be turned so as to be rollingly connected to the workpiece to be turned, and the third rolling member is arranged at one end of the third fastener close to the workpiece to be turned so as to be rollingly connected to the workpiece to be turned.

[0007] Preferably, the first rolling element, the second rolling element and the third rolling element are all deep groove ball bearings.

[0008] Preferably, it also includes a first bolt group, a second bolt group and a third bolt group, and the tool holder is provided with a plurality of first fastening holes, a plurality of second fastening holes and a plurality of third fastening holes, the first fastener is provided with a first elongated hole in the length direction, the second fastener is provided with a second elongated hole in the length direction, and the third fastener is provided with a third elongated hole in the length direction, the first bolt group is used to fix the first fastener to the tool holder after passing through each of the first fastening holes and the first elongated hole respectively, the second bolt group is used to fix the second fastener to the tool holder after passing through each of the second fastening holes and the second elongated hole respectively, and the third bolt group is used to fix the third fastener to the tool holder after passing through each of the third fastening holes and the third elongated hole respectively.

[0009] Preferably, a line connecting the first fastening holes faces the center of the working hole, a line connecting the second fastening holes faces the center of the working hole, and a line connecting the third fastening holes faces the center of the working hole.

[0010] Preferably, it also includes a locking plate, multiple locking bolts and multiple locking nuts, the tool holder is provided with multiple first locking holes, the locking plate is provided with multiple second locking holes, and the locking bolts are used to pass through the first locking holes and the second locking holes to fix the tool adjusted to the feed position between the locking plate and the tool holder.

[0011] Compared with the prior art, the utility model has achieved the following technical effects:

[0012] This utility model provides a tool holder for machining delicate workpieces. It employs a three-point fixation principle, utilizing three non-collinear points to uniquely determine the position of a planar material. The workpiece to be turned is clamped from three equally spaced directions, effectively improving clamping stability and positioning accuracy for delicate workpieces. The three-point fixation method is easier to implement and operate, and is more efficient than multi-point fixation methods. It also features a simple structure and ease of use, effectively improving machining accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 Schematic diagram of the tool holder structure for processing delicate and soft workpieces provided by this invention;

[0015] In the figure: 1. Support seat; 2. Tool holder; 3. First fastener; 4. Second fastener; 5. Third fastener; 6. Tool; 7. First rolling element; 8. First bolt group; 9. First elongated hole; 10. Locking plate; 11. Locking bolt. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] The purpose of the utility model is to provide a tool holder for processing delicate and soft workpieces to solve the problems existing in the above-mentioned prior art. It has a simple structure, is easy to use, and can effectively improve processing accuracy and processing efficiency.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] The utility model provides a tool holder for processing delicate and soft workpieces, such as Figure 1As shown, it includes: a support base 1, a tool holder 2, a first fastener 3, a second fastener 4, a third fastener 5 and a tool 6. The tool holder 2 is detachably fixedly connected to the support base 1. A working hole is provided in the middle of the tool holder 2, which is used to position the workpiece to be turned; the first fastener 3 slides with the tool holder 2 in the radial direction of the working hole and can maintain the position after sliding to limit the workpiece to be turned from the first direction; the second fastener 4 slides with the tool holder 2 in the radial direction of the working hole and can maintain the position after sliding to limit the workpiece to be turned from the second direction; the third fastener 5 slides with the tool holder 2 in the radial direction of the working hole and can maintain the position after sliding to limit the workpiece to be turned from the third direction; the angle between the first direction, the second direction and the third direction is 120°; the tool 6 slides with the tool holder 2 in the direction close to or away from the second fastener 4 and can maintain the position after sliding. The tool holder 2 can adapt to delicate and soft workpieces of different sizes. The workpiece is limited from different directions by three fasteners, thereby ensuring the stability of the workpiece during processing. The three fasteners are distributed at an angle of 120 degrees. The three-point fixing principle is used to more accurately determine the position of the workpiece and improve the processing accuracy. The slidable design of the tool 6 facilitates the adjustment of the processing position and improves the processing flexibility.

[0020] In a preferred embodiment, the tool holder for processing delicate and soft workpieces also includes a first rolling member 7, a second rolling member and a third rolling member. The first rolling member 7 is arranged at the end of the first fastener 3 close to the workpiece to be turned so as to be rollingly connected to the workpiece to be turned. The second rolling member is arranged at the end of the second fastener 4 close to the workpiece to be turned so as to be rollingly connected to the workpiece to be turned. The third rolling member is arranged at the end of the third fastener 5 close to the workpiece to be turned so as to be rollingly connected to the workpiece to be turned. The provision of the rolling members converts the contact between the fastener and the workpiece into rolling friction, thereby reducing damage to the surface of the workpiece, while reducing frictional resistance and improving processing efficiency.

[0021] In a preferred embodiment, the first, second, and third rolling elements are all deep groove ball bearings. Deep groove ball bearings offer high precision and a low coefficient of friction, ensuring workpiece machining accuracy and reducing energy loss and wear. Specifically, 626Z deep groove ball bearings are used as the workpiece anchor points. These bearings offer high precision and meet demanding applications. The bearings offer low friction between the rolling elements and the inner and outer rings, reducing energy loss and wear. They are compact and can withstand moderate radial and axial loads.

[0022] In a preferred embodiment, the tool holder for processing delicate and soft workpieces also includes a first bolt group 8, a second bolt group and a third bolt group. The tool holder 2 is provided with multiple first fastening holes, multiple second fastening holes and multiple third fastening holes. The first fastener 3 is provided with a first elongated hole 9 in the length direction, the second fastener 4 is provided with a second elongated hole in the length direction, and the third fastener 5 is provided with a third elongated hole in the length direction. The first bolt group 8 is used to fix the first fastener 3 to the tool holder 2 after passing through each first fastening hole and the first elongated hole 9 respectively, the second bolt group is used to fix the second fastener 4 to the tool holder 2 after passing through each second fastening hole and the second elongated hole respectively, and the third bolt group is used to fix the third fastener 5 to the tool holder 2 after passing through each third fastening hole and the third elongated hole respectively. Through the cooperation of the bolt group and the elongated holes, the position of the fasteners on the tool holder 2 can be adjusted and fixed to meet the processing requirements of different workpieces and improve the versatility of the tool holder 2.

[0023] In a preferred embodiment, the connecting line of each first fastening hole is toward the center of the working hole, the connecting line of each second fastening hole is toward the center of the working hole, and the connecting line of each third fastening hole is toward the center of the working hole, which effectively ensures the sliding square of the first fastener 3, the second fastener 4 and the third fastener 5, ensures that the fixation is more stable, can better limit the workpiece, and improves the processing accuracy.

[0024] In a preferred embodiment, the tool holder for processing delicate and soft workpieces also includes a locking plate 10, multiple locking bolts 11 and multiple locking nuts. The tool holder 2 is provided with multiple first locking holes, and the locking plate 10 is provided with multiple second locking holes. The locking bolts 11 are used to pass through the first locking holes and the second locking holes to fix the tool 6 adjusted to the feed position between the locking plate 10 and the tool holder 2. The setting of the locking plate 10, the locking bolts 11 and the locking nuts can firmly fix the tool 6 to prevent the tool 6 from being displaced during the processing, thereby ensuring the stability and accuracy of the processing, and the position of the tool 6 can be adjusted by adjusting the locking bolts 11 and the locking nuts.

[0025] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A tool holder for processing delicate and soft workpieces, characterized by: include: Support seat, A tool holder, the tool holder is detachably fixedly connected to the support seat, and a working hole is provided in the middle of the tool holder, and the working hole is used to turn a workpiece that needs to be turned; a first fastener, wherein the first fastener and the tool holder slide in a radial direction of the working hole and are capable of maintaining a position after sliding so as to limit the workpiece to be turned in a first direction; a second fastener, wherein the second fastener and the tool holder slide in the radial direction of the working hole and can maintain the sliding position to limit the workpiece to be turned from a second direction; a third fastener, wherein the third fastener and the tool holder slide in the radial direction of the working hole and can maintain the sliding position to limit the workpiece to be turned from a third direction; The angle between the first direction, the second direction and the third direction is 120°; and The tool and the tool holder slide in a direction close to or away from the second fastener and can maintain the position after sliding.

2. The tool holder for processing delicate and soft workpieces according to claim 1, characterized in that: It also includes a first rolling member, a second rolling member and a third rolling member. The first rolling member is arranged at one end of the first fastener close to the workpiece to be turned so as to be rollingly connected to the workpiece to be turned. The second rolling member is arranged at one end of the second fastener close to the workpiece to be turned so as to be rollingly connected to the workpiece to be turned. The third rolling member is arranged at one end of the third fastener close to the workpiece to be turned so as to be rollingly connected to the workpiece to be turned.

3. The tool holder for processing delicate and soft workpieces according to claim 2, characterized in that: The first rolling element, the second rolling element and the third rolling element are all deep groove ball bearings.

4. The tool holder for processing delicate and soft workpieces according to claim 3, characterized in that: It also includes a first bolt group, a second bolt group and a third bolt group, the tool holder is provided with a plurality of first fastening holes, a plurality of second fastening holes and a plurality of third fastening holes, the first fastener is provided with a first elongated hole in the length direction, the second fastener is provided with a second elongated hole in the length direction, and the third fastener is provided with a third elongated hole in the length direction, the first bolt group is used to fix the first fastener to the tool holder after passing through each of the first fastening holes and the first elongated hole respectively, the second bolt group is used to fix the second fastener to the tool holder after passing through each of the second fastening holes and the second elongated hole respectively, and the third bolt group is used to fix the third fastener to the tool holder after passing through each of the third fastening holes and the third elongated hole respectively.

5. The tool holder for processing delicate and soft workpieces according to claim 4, characterized in that: A line connecting the first fastening holes faces the center of the working hole, a line connecting the second fastening holes faces the center of the working hole, and a line connecting the third fastening holes faces the center of the working hole.

6. The tool holder for processing delicate and soft workpieces according to claim 1, characterized in that: It also includes a locking plate, multiple locking bolts and multiple locking nuts. The tool holder is provided with multiple first locking holes, and the locking plate is provided with multiple second locking holes. The locking bolts are used to pass through the first locking holes and the second locking holes to fix the tool adjusted to the feed position between the locking plate and the tool holder.

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