Machining tool head
By combining sliding columns, steel balls, and springs, the problem of cumbersome connection between machining cutter heads and tool holders is solved, enabling quick assembly and disassembly as well as stable fixation, thus improving machining efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO DEHUA MACHINERY CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-12
AI Technical Summary
The current machining tool head and tool holder are connected by bolts, which makes the disassembly and assembly process cumbersome and requires the use of tools.
It adopts a sliding column, steel ball, spring and slot structure. The sliding column can be moved to achieve quick assembly and disassembly, and the stop and slot can be used to fix the cutter head stably.
It enables quick assembly and disassembly and stable fixation of machining tool heads and tool holders, reducing operation steps and improving machining efficiency.
Smart Images

Figure CN224347385U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hydraulic cylinder barrel processing technology, specifically relating to a machining tool head. Background Technology
[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy to perform linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device and has no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. The cylinder barrel, as the core structural component of the hydraulic cylinder, undertakes the crucial functions of housing the piston assembly and guiding linear motion.
[0003] Currently, in the field of hydraulic cylinder machining technology, machining heads are key components for completing machining processes such as cutting and grooving of hydraulic cylinders. However, since the connection between the machining head and the tool holder is mostly fastened with bolts, tools such as wrenches are needed to disassemble and assemble them, making the disassembly and assembly process quite troublesome. Utility Model Content
[0004] The purpose of this utility model is to provide a machining tool head that solves the problem that existing machining tool heads and tool holders are fastened with bolts, requiring tools such as wrenches for disassembly and assembly, which is cumbersome.
[0005] The specific technical solution adopted by this utility model is as follows:
[0006] A machining head includes a tool holder, a support block fixedly connected to the upper surface of the tool holder, a stop block fixedly connected to the upper surface of the support block, a groove formed on the surface of the stop block, an alloy tool head fitted to the inner wall of the groove, a first circular hole formed inside the alloy tool head, a first cylinder fixedly connected to the inner wall of the first circular hole, a sliding column fitted to the inner wall of the first cylinder, a spring fixedly connected to the bottom of the sliding column, and circular plates fixedly connected to the bottom of the spring and the inner wall of the first cylinder, a first annular groove formed on the surface of the sliding column, a conical hole formed on the surface of the first cylinder, steel balls fitted to the inner wall of the conical hole and the surface of the sliding column, a second circular hole formed inside the support block, a second cylinder fixedly connected to the inner wall of the second circular hole, the inner wall of the second cylinder fitting to the surface of the first cylinder, a second annular groove formed on the inner wall of the second cylinder, the inner wall of the second annular groove fitting to the surface of the steel balls, and a first venting groove formed on the inner wall of the first cylinder.
[0007] The present invention is further configured such that the circular plate has a threaded hole inside, the inner wall of the threaded hole is threaded with a bolt, the upper surface of the bolt has a first circular groove, the inner wall of the first circular groove is fixedly connected with a cylinder, the surface of the cylinder and the inner wall of the first circular groove are bonded with a hollow rubber column, the bottom of the sliding column has a second circular groove, the inner wall of the second circular groove is in contact with the surface of the hollow rubber column, and the surface of the hollow rubber column has a second venting groove.
[0008] The present invention is further configured such that the axis of the cylinder coincides with the axis of the bolt, and the length of the cylinder is equal to the length of the hollow rubber column.
[0009] The present invention is further configured such that the first cylinder is located in the middle of the alloy cutter head, and the axis of the first cylinder coincides with the axis of the cutter shank.
[0010] The present invention is further configured such that the first annular groove is located above the steel ball, the width of the first annular groove is greater than the diameter of the steel ball, the depth of the first annular groove is greater than the depth of the second annular groove, and the depth of the first annular groove is less than the radius of the steel ball.
[0011] The present invention is further configured such that the number of steel balls is four, and the four steel balls are arranged in a circular array with the axis of the sliding column as the center.
[0012] The technical effects achieved by this utility model are as follows:
[0013] The machining head of this utility model, through the cooperation of a first cylinder, a sliding column, a spring, a circular plate, a first annular groove, a conical hole, a steel ball, a second cylinder, and a second annular groove, allows the operator to quickly assemble and disassemble the machining head and the tool holder by moving the sliding column inside the first cylinder. At the same time, after the machining head is fixed on the tool holder, the tool holder can drive the machining head to rotate through the cooperation of the stop block and the slot.
[0014] The machining cutter head of this utility model utilizes the friction between the hollow rubber column and the sliding column to prevent the sliding column from jumping due to vibration when the machining cutter head is slotting the cylinder barrel, thus allowing the machining cutter head to be stably fixed on the tool holder. At the same time, the operation of the threaded hole and bolt allows the operator to replace the worn hollow rubber column. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a top view of the structure of this utility model;
[0017] Figure 3 yes Figure 2 Sectional view at point AA;
[0018] Figure 4 yes Figure 3 Enlarged view at point B in the middle;
[0019] Figure 5 yes Figure 3 Enlarged view at point C;
[0020] Figure 6 This is a top view of the support block in this utility model;
[0021] Figure 7 This is a top view of the alloy cutter head in this utility model;
[0022] Figure 8 This is a top view of the first cylinder in this utility model;
[0023] Figure 9 yes Figure 8 Sectional view at point DD;
[0024] Figure 10 This is a front view of the sliding column in this utility model;
[0025] Figure 11 This is a bottom view of the sliding column in this utility model;
[0026] Figure 12 This is a front view of the second cylinder in this utility model;
[0027] Figure 13 yes Figure 12 Sectional view at EE;
[0028] Figure 14 This is a top view of the circular plate in this utility model;
[0029] Figure 15 This is a top view of the bolt in this utility model;
[0030] Figure 16 This is a top view of the hollow rubber column of this utility model.
[0031] The attached diagram lists the components represented by each number as follows:
[0032] 1. Tool holder; 2. Support block; 3. Stop block; 4. Slot; 5. Alloy tool tip; 6. First circular hole; 7. First cylinder; 8. Sliding column; 9. Spring; 10. Circular plate; 11. First annular groove; 12. Tapered hole; 13. Steel ball; 14. Second circular hole; 15. Second cylinder; 16. Second annular groove; 17. First vent groove; 18. Threaded hole; 19. Bolt; 20. First circular groove; 21. Cylinder; 22. Hollow rubber column; 23. Second circular groove; 24. Second vent groove. Detailed Implementation
[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0035] like Figures 1 to 13 As shown, the machining head includes a tool holder 1. A support block 2 is fixedly connected to the upper surface of the tool holder 1. A stop block 3 is fixedly connected to the upper surface of the support block 2. A groove 4 is formed on the surface of the stop block 3. An alloy tool head 5 is fitted into the inner wall of the groove 4. The bottom of the alloy tool head 5 is fitted into the upper surface of the support block 2. A first circular hole 6 is formed inside the alloy tool head 5. A first cylinder 7 is fixedly connected to the inner wall of the first circular hole 6. A sliding column 8 is fitted into the inner wall of the first cylinder 7. A spring 9 is fixedly connected to the bottom of the sliding column 8. The bottom of the spring 9 and the inner wall of the first cylinder 7 are both fixedly connected. A circular plate 10 is attached. A first annular groove 11 is formed on the surface of the sliding column 8. A conical hole 12 is formed on the surface of the first cylinder 7. Steel balls 13 are attached to the inner wall of the conical hole 12 and the surface of the sliding column 8. A second circular hole 14 is formed inside the support block 2. A second cylinder 15 is fixedly connected to the inner wall of the second circular hole 14. The inner wall of the second cylinder 15 is attached to the surface of the first cylinder 7. A second annular groove 16 is formed on the inner wall of the second cylinder 15. The inner wall of the second annular groove 16 is attached to the surface of the steel balls 13. A first venting groove 17 is formed on the inner wall of the first cylinder 7.
[0036] The first cylinder 7 is located in the middle of the alloy cutter head 5. The axis of the first cylinder 7 coincides with the axis of the cutter bar 1. The first annular groove 11 is located above the steel ball 13. The width of the first annular groove 11 is greater than the diameter of the steel ball 13. The depth of the first annular groove 11 is greater than the depth of the second annular groove 16. The depth of the first annular groove 11 is less than the radius of the steel ball 13. There are four steel balls 13, and the four steel balls 13 are arranged in a circular array with the axis of the sliding column 8 as the center.
[0037] It should be noted that the slide column 8 is supported by the spring 9. When the first annular groove 11 on the slide column 8 is misaligned with the steel ball 13, the slide column 8 prevents the steel ball 13 from separating from the second annular groove 16. The engagement of the steel ball 13 and the second annular groove 16 fixes the alloy cutter head 5 to the support block 2. When the first annular groove 11 is aligned with the steel ball 13, the slide column 8 no longer restricts the movement of the steel ball 13. Therefore, by moving the alloy cutter head 5 upwards, it can be removed from the support block 2. After the machining head is fixed on the tool holder 1, the tool holder 1 can drive the machining head to rotate through the cooperation of the stop block 3 and the slot 4. When the operator presses the slide column 8, the first annular groove 11 can be aligned with the steel ball 13 by the pressing force. When the operator releases the slide column 8, the first annular groove 11 can be displaced from the steel ball 13 by the elastic force of the spring 9. When the slide column 8 moves in the first cylinder 7, the first vent groove 17 can ensure that the air pressure above and below the slide column 8 is equal, so that the slide column 8 can move smoothly in the first cylinder 7.
[0038] like Figures 1 to 16 As shown, the circular plate 10 has a threaded hole 18 inside, and a bolt 19 is threadedly connected to the inner wall of the threaded hole 18. A first circular groove 20 is formed on the upper surface of the bolt 19. A cylinder 21 is fixedly connected to the inner wall of the first circular groove 20. A hollow rubber column 22 is bonded to the surface of the cylinder 21 and the inner wall of the first circular groove 20. A second circular groove 23 is formed at the bottom of the sliding column 8. The inner wall of the second circular groove 23 is in contact with the surface of the hollow rubber column 22. A second venting groove 24 is formed on the surface of the hollow rubber column 22.
[0039] The axis of cylinder 21 coincides with the axis of bolt 19, and the length of cylinder 21 is equal to the length of hollow rubber column 22.
[0040] It should be noted that the friction between the hollow rubber column 22 and the sliding column 8 prevents the sliding column 8 from jumping due to vibration when the machining head is slotting the cylinder barrel, thus allowing the machining head to be stably fixed on the tool holder 1. At the same time, the operation of the threaded hole 18 and the bolt 19 allows the operator to replace the worn hollow rubber column 22. When the sliding column 8 moves, the second vent groove 24 ensures that the air pressure inside and outside the second circular groove 23 is equal, thus allowing the sliding column 8 to move smoothly on the hollow rubber column 22.
[0041] The working principle of this utility model is as follows: When fixing the alloy cutter head 5 on the tool bar 1, first pinch the alloy cutter head 5, and by pressing the sliding column 8, align the first annular groove 11 with the steel ball 13. Then, insert the first cylinder 7 into the second cylinder 15. Since the sliding column 8 does not restrict the movement of the steel ball 13, the steel ball 13 can directly enter the second cylinder 15. When the steel ball 13 is aligned with the second annular groove 16, release the sliding column 8. The spring 9 will cause the first annular groove 11 to be misaligned with the steel ball 13. At this time, the sliding column 8 will prevent the steel ball 13 from separating from the second annular groove 16. The alloy cutter head 5 can be fixed on the support block 2 through the cooperation of the steel ball 13 and the second annular groove 16. At the same time, after fixing the machining cutter head on the tool bar 1, the tool bar 1 can drive the machining cutter head to rotate through the cooperation of the stop block 3 and the slot 4.
[0042] When it is necessary to remove the alloy cutter head 5 from the cutter bar 1, first pinch the alloy cutter head 5, and press the sliding column 8 to align the first annular groove 11 with the steel ball 13. At this time, since the sliding column 8 does not restrict the movement of the steel ball 13, the steel ball 13 can be slid out of the second annular groove 16 by moving the alloy cutter head 5 upward, and the alloy cutter head 5 can be removed from the support block 2.
[0043] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A machining tool head, characterized in that: The device includes a tool holder (1), a support block (2) fixedly connected to the upper surface of the tool holder (1), a stop block (3) fixedly connected to the upper surface of the support block (2), a slot (4) formed on the surface of the stop block (3), an alloy tool head (5) fitted to the inner wall of the slot (4), a first circular hole (6) formed inside the alloy tool head (5), a first cylinder (7) fixedly connected to the inner wall of the first circular hole (6), a sliding column (8) fitted to the inner wall of the first cylinder (7), a spring (9) fixedly connected to the bottom of the sliding column (8), and circular plates (10) fixedly connected to the bottom of the spring (9) and the inner wall of the first cylinder (7). The surface of the first cylinder (7) has a first annular groove (11), the surface of the first cylinder (7) has a conical hole (12), the inner wall of the conical hole (12) and the surface of the sliding column (8) are both fitted with steel balls (13), the inside of the support block (2) has a second circular hole (14), the inner wall of the second circular hole (14) is fixedly connected to a second cylinder (15), the inner wall of the second cylinder (15) is fitted with the surface of the first cylinder (7), the inner wall of the second cylinder (15) has a second annular groove (16), the inner wall of the second annular groove (16) is fitted with the surface of the steel balls (13), and the inner wall of the first cylinder (7) has a first venting groove (17).
2. The machining head according to claim 1, characterized in that: The circular plate (10) has a threaded hole (18) inside. The inner wall of the threaded hole (18) is threaded with a bolt (19). The upper surface of the bolt (19) has a first circular groove (20). The inner wall of the first circular groove (20) is fixedly connected with a cylinder (21). The surface of the cylinder (21) and the inner wall of the first circular groove (20) are bonded with a hollow rubber column (22). The bottom of the sliding column (8) has a second circular groove (23). The inner wall of the second circular groove (23) is in contact with the surface of the hollow rubber column (22). The surface of the hollow rubber column (22) has a second venting groove (24).
3. The machining head according to claim 2, characterized in that: The axis of the cylinder (21) coincides with the axis of the bolt (19), and the length of the cylinder (21) is equal to the length of the hollow rubber column (22).
4. The machining tool head according to claim 1, characterized in that: The first cylinder (7) is located in the middle of the alloy cutter head (5), and the axis of the first cylinder (7) coincides with the axis of the cutter bar (1).
5. The machining head according to claim 1, characterized in that: The first annular groove (11) is located above the steel ball (13). The width of the first annular groove (11) is greater than the diameter of the steel ball (13). The depth of the first annular groove (11) is greater than the depth of the second annular groove (16). The depth of the first annular groove (11) is less than the radius of the steel ball (13).
6. The machining head according to claim 1, characterized in that: The number of steel balls (13) is four, and the four steel balls (13) are arranged in a circular array with the axis of the sliding column (8) as the center.