A lathe tool rest
By setting mounting holes, through slots, and bolt holes on the lathe tool holder, the contact area of the boring tool is increased, and combined with the connecting structure, the machining accuracy problem caused by the movement of the boring tool is solved, achieving higher precision and wider applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANYING PRECISION MASCH TECH (ZHEJIANG) CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-24
AI Technical Summary
In the existing technology, the contact area between the bolt and the boring tool is limited, which makes the boring tool easy to move during processing, affecting the processing accuracy and producing defective products.
Design a lathe tool holder that increases the contact area of the boring tool holder by setting mounting holes, through slots and multiple bolt holes on the fixed seat, and uses multiple bolts to connect with the threaded holes in the through slots. Combined with the mounting slots and connecting structure, the position adjustment of multiple fixed seats and the fixing of the cutting tool can be realized.
It effectively prevents the boring tool from moving during machining, improves the tightness of the tool holder and machining accuracy, expands the application range of the mounting base, and is suitable for machining needs of different workpieces.
Smart Images

Figure CN224543166U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of machining, and in particular to a lathe tool holder. Background Technology
[0002] Machining is a key method for manufacturing parts. It uses machine tools to precisely process raw materials into the final required shape and specifications, ensuring high precision and excellent quality. Machining encompasses a variety of technologies, such as cutting, drilling, milling, turning, and CNC machining, and is applicable to almost all types of raw materials. As a core tool, the performance of machine tools is crucial and directly affects machining accuracy and quality. Therefore, the manufacturing process of machine tools must strictly control material selection, design schemes, and processing technology to ensure the superior quality of the final product.
[0003] In machining, the cutting tools used often need to be fixed to the tool holder by a tool holder, and then the tool is moved to a suitable position to perform turning operations on the workpiece. For example, Chinese Patent Announcement No. CN208945188U discloses "a boring tool for CNC lathes", which places a Z-shaped boring tool holder on the idle tool placement slot on the tool holder. The locking of the Z-shaped boring tool holder adopts the same tensioning structure as the external diameter turning tool. After the Z-shaped boring tool holder is fixed, the boring tool bar is inserted into the boring tool mounting hole, and the boring tool bar is fixed in the boring tool mounting hole through the threaded hole.
[0004] However, in actual use, because threaded bolts are used to connect the boring tool, the contact area between the bolt and the boring tool is limited, which can easily cause the boring tool to move during processing, resulting in reduced processing accuracy or even defective products. Utility Model Content
[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, such as the limited contact area between the bolt and the boring tool, which easily causes the boring tool to move during processing, resulting in reduced processing accuracy or even defective products. Therefore, a lathe tool holder is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] Design a lathe tool holder, including a fixed base, the fixed base having a mounting hole for mounting a tool holder, a through groove on one side of the mounting hole, the fixed base having a plurality of first bolt holes for mounting bolts, the through groove having threaded holes corresponding to the first bolt holes, the fixed base having a mounting groove for mounting cutting tools, and a second bolt hole having a mounting groove.
[0008] Furthermore, a connecting plate is fixedly provided on one side of the fixing base, and a third bolt hole is provided on the connecting plate.
[0009] Furthermore, a mounting plate is provided at the lower end of the fixing base, and the mounting plate is fastened to the connecting plate through a connecting structure.
[0010] Furthermore, the connection structure includes a connecting block disposed on the mounting plate, the connecting block being fastened to the connecting plate by bolts, a positioning block being fixedly disposed on the connecting block, and a positioning groove being provided on the fixing seat to cooperate with the positioning block.
[0011] Furthermore, the mounting plate is provided with a sliding groove, the connecting block is slidably disposed in the sliding groove, and a lead screw that is threadedly connected to the connecting block is rotatably disposed in the sliding groove.
[0012] Furthermore, the mounting plate is provided with an adjustment groove, and a knob is rotatably installed in the adjustment groove. The lead screw passes through the slide groove and the adjustment groove and is fixedly connected to the knob.
[0013] Furthermore, the mounting plate has a connecting groove that mates with the lead screw, and an adjusting member that is fixedly connected to the lead screw is rotatably disposed in the connecting groove. The adjusting member has a polygonal groove.
[0014] The lathe tool holder proposed in this utility model has the following advantages:
[0015] In this utility model, the tool holder of the boring tool is installed through the mounting hole, which increases the contact area with the boring tool and thus effectively prevents the boring tool from moving during processing. When fixing the tool holder, multiple bolts are used to connect with the threaded holes in the through groove, making it more difficult for the mounting hole to loosen when clamping and fixing the tool holder, thereby improving the tightness of the connection with the tool holder.
[0016] Secondly, in this utility model, the cutting blades required for cutting can be directly installed through the mounting slot, thereby improving the applicability of the fixed seat. At the same time, by using a mounting plate to connect with the fixed seat, multiple fixed seats can be connected to one mounting plate at the same time to form a tool holder structure. By changing the position of different fixed seats through the connection structure, workpieces with different requirements can be cut and processed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a lathe tool holder proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the mounting plate of this utility model;
[0019] Figure 3 This is a schematic diagram of the lead screw of this utility model;
[0020] Figure 4 This is a schematic diagram of the positioning block of this utility model.
[0021] In the diagram: 1. Fixed base; 2. Mounting hole; 3. Through groove; 4. First bolt hole; 5. Mounting groove; 6. Second bolt hole; 7. Connecting plate; 71. Third bolt hole; 8. Mounting plate; 9. Connecting structure; 91. Connecting block; 92. Positioning block; 93. Lead screw; 94. Knob; 95. Adjusting component. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figure 1-4 A lathe tool holder includes a fixed base 1, a mounting hole 2 for mounting a tool holder, a through groove 3 on one side of the mounting hole 2, a plurality of first bolt holes 4 for mounting bolts, a threaded hole corresponding to the first bolt hole 4 in the through groove, a mounting groove 5 for mounting a cutting tool, and a second bolt hole 6 in the mounting groove 5.
[0024] In this utility model, the boring bar holder is installed through the mounting hole 2, increasing the contact area with the boring bar holder and thus effectively preventing the boring bar from moving during machining. When fixing the holder, the bolt is first placed in the first bolt hole 4, and multiple bolts are connected to the threaded holes in the through groove 3, making it more difficult for the mounting hole 2 to loosen when clamping and fixing the holder, thus improving the tightness of the connection with the holder. The cutting inserts required for cutting can be directly installed through the mounting groove 5, thereby increasing the applicability of the fixing seat 1. During machining, multiple fixing seats are usually arranged to machine the workpiece.
[0025] Furthermore, in this embodiment, a connecting plate 7 is fixedly provided on one side of the fixed base 1. A third bolt hole 71 is provided on the connecting plate 7. Bolts are installed through the third bolt hole 71, and the fixed base 1 is fixed to the processing table by the bolts.
[0026] Furthermore, in this embodiment, a mounting plate 8 is provided at the lower end of the fixed base 1. The mounting plate 8 is fastened to the connecting plate 7 through the connecting structure 9. Extension plates are provided on both sides of the mounting plate 8. Through holes are provided on the extension plates for installing screws. The mounting plate 8 is embedded in the operating table and fastened to the operating table through screws.
[0027] It should be noted that in this embodiment, the connecting structure 9 includes a connecting block 91 and bolts disposed on the mounting plate 8. The connecting block 91 and the connecting plate 7 are fastened together by bolts. A positioning block 92 is fixedly disposed on the connecting block 91. A positioning groove that cooperates with the positioning block 92 is provided on the fixing seat 1. By setting the positioning block 92, the fixing seat 1 is guided and positioned, so that the third bolt hole 71 on the connecting plate 7 is aligned with the threaded hole on the mounting plate 8, thereby facilitating the installation of bolts for fixing.
[0028] Furthermore, in this embodiment, a sliding groove is provided on the mounting plate 8, and the connecting block 91 is slidably disposed in the sliding groove. A lead screw 93, which is threadedly connected to the connecting block 91, is rotatably disposed in the sliding groove. By rotating the lead screw 93, the moving of the connecting block 91 and the fixed seat 1 can be controlled, and the position of the tool can be adjusted to facilitate the addition of workpieces of different specifications, thereby improving the applicability.
[0029] In detail, in this embodiment, the mounting plate 8 is provided with an adjustment groove, and a knob 94 is rotatably provided in the adjustment groove. The lead screw 93 passes through the slide groove and the adjustment groove and is fixedly connected to the knob 94. The lead screw 93 can be rotated by rotating the knob 94. The surface of the knob 94 is provided with texture to increase friction.
[0030] More specifically, in this embodiment, the mounting plate 8 is provided with a connecting groove that cooperates with the lead screw 93. An adjusting member 95 that is fixedly connected to the lead screw 93 is rotatably disposed in the connecting groove. The adjusting member 95 is provided with a polygonal groove. By setting the adjusting member, when the knob 94 is difficult to rotate, a polygonal wrench such as a hexagonal wrench can be inserted into the polygonal groove to adjust the position of the fixed seat 1.
[0031] Working method: During operation, the boring bar holder is installed through the mounting hole 2. The bolt is placed in the first bolt hole 4, and multiple bolts are connected to the threaded holes in the through groove 3 in sequence, so that the mounting hole 2 clamps and fixes the tool holder. The cutting blade required for cutting can be directly installed through the mounting groove 5, and the cutting blade is fixed by placing bolts through the second bolt hole 6. The fixing seat 1 is guided and positioned by the positioning block 92. The third bolt hole 71 on the connecting plate 7 is set to correspond with the threaded hole on the mounting plate 8 and fixed by bolts. The mounting plate 8 is embedded in the operating table and fastened to the operating table by screws. The lead screw 93 can be rotated by rotating the knob 94. The lead screw 93 controls the movement of the connecting block 91 and the fixing seat 1. When the knob 94 is difficult to rotate, the mounting plate 8 can be removed and the position of the fixing seat 1 can be adjusted by inserting a polygonal wrench or other polygonal wrench into the polygonal groove.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A lathe tool holder, comprising a fixed base (1), characterized in that, The fixed base (1) has a mounting hole (2) for mounting a knife handle. A through groove (3) is provided on one side of the mounting hole (2). The fixed base (1) has a plurality of first bolt holes (4) for mounting bolts. A threaded hole corresponding to the first bolt hole (4) is provided in the through groove. The fixed base (1) has a mounting groove (5) for mounting a blade. A second bolt hole (6) is provided in the mounting groove (5).
2. The lathe tool holder according to claim 1, characterized in that: A connecting plate (7) is fixedly provided on one side of the fixed base (1), and a third bolt hole (71) is provided on the connecting plate (7).
3. The lathe tool holder according to claim 2, characterized in that: The lower end of the fixed base (1) is provided with an mounting plate (8), which is fastened to the connecting plate (7) through a connecting structure (9).
4. The lathe tool holder according to claim 3, characterized in that: The connection structure (9) includes a connection block (91) disposed on the mounting plate (8). The connection block (91) is fastened to the connection plate (7) by bolts. A positioning block (92) is fixedly disposed on the connection block (91). A positioning groove that cooperates with the positioning block (92) is provided on the fixing seat (1).
5. The lathe tool holder according to claim 4, characterized in that: The mounting plate (8) has a groove, the connecting block (91) is slidably disposed in the groove, and a lead screw (93) that is threadedly connected to the connecting block (91) is rotatably disposed in the groove.
6. The lathe tool holder according to claim 5, characterized in that: An adjustment groove is provided on the mounting plate (8), and a knob (94) is rotatably provided in the adjustment groove. The lead screw (93) passes through the slide groove and the adjustment groove and is fixedly connected to the knob (94).
7. The lathe tool holder according to claim 6, characterized in that: The mounting plate (8) has a connecting groove that cooperates with the lead screw (93). An adjusting member (95) that is fixedly connected to the lead screw (93) is rotatably arranged in the connecting groove. The adjusting member (95) has a polygonal groove.