Improved T-shaped milling cutter

Abstract

The utility model relates to the technical field of milling cutters, in particular to an improved T-shaped milling cutter which comprises a mounting seat, a cutter head and an adjusting assembly, the cutter head is detachably mounted on the mounting seat, the adjusting assembly comprises an extension rod, a fixing sleeve, a positioning seat, a connecting sleeve, an adjusting screw rod and a locking component, the extension rod is fixedly connected with the mounting seat and located on one side of the mounting seat, and the fixing sleeve is fixedly connected with the fixing sleeve. The fixing sleeve is connected with the extension rod through the positioning seat, the positioning seat is detachably mounted on the fixing sleeve and slidably connected with the extension rod, the connecting sleeve is fixedly connected with the extension rod and located in the fixing sleeve, and the adjusting screw extends into the fixing sleeve, is rotatably connected with the fixing sleeve and is in threaded connection with the connecting sleeve. The problems that in the prior art, due to the fact that a fastener is inserted into a fastening hole for length adjustment, alignment of the fastener and the fastening hole is difficult during adjustment, adjustment can only be conducted according to the hole position, accuracy is poor, and use is inconvenient are solved.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, and in particular to an improved T-type milling cutter. Background Technology

[0002] In the current machining industry, T-slot milling cutters are widely used for milling workpieces. However, traditional T-slot milling cutters have a non-adjustable shank length, which means they cannot be adjusted according to the actual workpiece conditions, resulting in poor adaptability.

[0003] Prior art CN212734370U discloses a T-slot end mill, including a tool holder, multiple mounting blocks arranged circumferentially on the tool holder, inserts mounted on the mounting blocks, and a tool shank mounted on the tool holder. The tool shank includes a shank portion and a neck portion, the neck portion is mounted on the tool holder, and the shank portion is located at the end of the neck portion away from the tool holder. A sliding groove is provided on the side wall of the shank portion near the neck portion, and the neck portion is slidably mounted in the sliding groove. A fastener passes through the shank portion, and multiple fastening holes are provided on the neck portion for fastening and insertion with the fastener. This application features a neck portion that slides and inserts into the sliding groove of the shank portion, which facilitates adjusting the length of the tool shank according to the actual workpiece conditions, thereby improving the adaptability of the T-slot end mill.

[0004] The T-slot end mill mentioned above is designed to adjust its length by inserting a fastener into a fastening hole. However, this makes it difficult to align the fastener with the fastening hole during adjustment, and the adjustment can only be made based on the hole position, resulting in poor accuracy and inconvenience. Utility Model Content

[0005] The purpose of this utility model is to provide an improved T-type end mill, which solves the problems of existing technology, which uses the method of inserting a fastener into a fastening hole for length adjustment. During adjustment, it is difficult to align the fastener with the fastening hole, and the adjustment can only be made according to the hole position, resulting in poor accuracy and inconvenience.

[0006] To achieve the above objectives, this utility model provides an improved T-type milling cutter, including a mounting base, a cutter head, and an adjustment assembly. The cutter head is detachably mounted on the mounting base. The adjustment assembly includes an extension rod, a fixed sleeve, a positioning seat, a connecting sleeve, an adjusting screw, and a locking member. The extension rod is fixedly connected to the mounting base and located on one side of the mounting base. The fixed sleeve is connected to the extension rod through the positioning seat. The positioning seat is detachably mounted on the fixed sleeve and slidably connected to the extension rod. The connecting sleeve is fixedly connected to the extension rod and located inside the fixed sleeve. The adjusting screw extends into the fixed sleeve and is rotatably connected to the fixed sleeve, and is threadedly connected to the connecting sleeve. The locking member limits the adjustment screw.

[0007] The fixed sleeve has a limiting groove located on the side of the fixed sleeve close to the connecting sleeve; the connecting sleeve has a limiting protrusion that cooperates with the limiting groove.

[0008] The adjusting assembly also includes a limiting spring, which is sleeved on the outside of the extension rod and located inside the fixed sleeve.

[0009] The locking component includes a ratchet, a locking tooth, and a support spring. The ratchet is fixedly connected to the adjusting screw and is located at the end of the adjusting screw away from the connecting sleeve. The locking tooth is rotatably connected to the fixed sleeve and cooperates with the ratchet. The two ends of the support spring are respectively connected to the locking tooth and the fixed sleeve.

[0010] The locking component further includes a lever, which is fixedly connected to the locking tooth and located on the side of the locking tooth away from the fixed sleeve.

[0011] This utility model discloses an improved T-type milling cutter, comprising a mounting base, a cutter head, and an adjusting assembly. The cutter head is detachably mounted on the mounting base. The adjusting assembly includes an extension rod, a fixed sleeve, a positioning seat, a connecting sleeve, an adjusting screw, and a locking member. The extension rod is fixedly connected to the mounting base and located on one side of the mounting base. The fixed sleeve is connected to the extension rod through the positioning seat. The positioning seat is detachably mounted on the fixed sleeve and slidably connected to the extension rod. The connecting sleeve is fixedly connected to the extension rod and located inside the fixed sleeve. The adjusting screw extends into the fixed sleeve and is rotatably connected to the fixed sleeve, and is threadedly connected to the connecting sleeve. The locking member limits the adjustment screw. This invention solves the problems of existing technologies that use fasteners inserted into fastening holes for length adjustment, which are difficult to align with the fastening holes during adjustment, and can only be adjusted according to the hole position, resulting in poor accuracy and inconvenience. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the improved T-type milling cutter of this utility model.

[0014] Figure 2 This is a structural schematic diagram of the fixing sleeve and connecting sleeve of this utility model.

[0015] Figure 3 This is a structural schematic diagram of the locking component of this utility model.

[0016] In the diagram: 101-Mounting base, 102-Cutter head, 103-Extension rod, 104-Fixing sleeve, 105-Positioning seat, 106-Connecting sleeve, 107-Adjusting screw, 108-Limiting groove, 109-Limiting protrusion, 110-Limiting spring, 111-Mounting groove, 112-Ratchet, 113-Clamping tooth, 114-Supporting spring, 115-Tuning lever. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] The embodiment of this application is as follows:

[0019] Please see Figures 1-3 , Figure 1 This is a schematic diagram of the overall structure of the improved T-type end mill of this utility model. Figure 2 This is a structural schematic diagram of the fixing sleeve 104 and the connecting sleeve 106 of this utility model. Figure 3 This is a structural schematic diagram of the locking component of this utility model.

[0020] This utility model discloses an improved T-type end mill, comprising a mounting base 101, a cutter head 102, an extension rod 103, a fixing sleeve 104, a positioning base 105, a connecting sleeve 106, an adjusting screw 107, a limiting groove 108, a limiting protrusion 109, a limiting spring 110, a mounting groove 111, a ratchet 112, a locking tooth 113, a support spring 114, and a lever 115. It solves the problems of existing technologies that rely on inserting fasteners into fastening holes for length adjustment, resulting in difficulty aligning the fasteners with the fastening holes during adjustment, poor accuracy, and inconvenience due to the limitation of adjustment based solely on hole position. It is understood that the aforementioned solution can also be used to improve ease of use.

[0021] In this embodiment, both the mounting base 101 and the cutter head 102 are existing technologies. The specific structure refers to the existing technology CN212734370U, a T-slot milling cutter. Through the adjustment component, the problem of existing technologies, which use fasteners to be inserted into fastening holes for length adjustment, is solved. During adjustment, it is difficult to align the fasteners with the fastening holes, and the adjustment can only be made according to the hole position, resulting in poor accuracy and inconvenience.

[0022] The extension rod 103 is fixedly connected to the mounting base 101 and located on one side of the mounting base 101. The fixing sleeve 104 is connected to the extension rod 103 via the positioning seat 105. The positioning seat 105 is detachably mounted on the fixing sleeve 104 and slidably connected to the extension rod 103. The connecting sleeve 106 is fixedly connected to the extension rod 103 and located inside the fixing sleeve 104. The adjusting screw 107 extends into the fixing sleeve 104 and is rotatably connected to the fixing sleeve 104, and is also connected to the connecting sleeve. The 106 threaded connection limits the adjusting screw 107. The extension rod 103 and the fixed sleeve 104 form a tool holder. The fixed sleeve 104 is a cylinder with an internal cavity. One end of the extension rod 103 is fixedly connected to the mounting base 101, and the other end extends into the fixed sleeve 104, forming a telescopic structure. The positioning seat 105 has a through hole that matches the diameter of the extension rod 103. The positioning seat 105 is fixed to the port of the fixed sleeve 104 by bolts, and the extension rod 103 passes through the positioning seat. 105 is slidably connected to the positioning seat 105, which guides the movement of the extension rod 103. The connecting sleeve 106 can slide within the internal cavity of the fixed sleeve 104. The connecting sleeve 106 has a threaded hole. The adjusting screw 107 extends from the tail end of the fixed sleeve 104 into the fixed sleeve 104 and is rotatably connected to the fixed sleeve 104 via a bearing. The end of the adjusting screw 107 extends into the threaded hole of the connecting sleeve 106 and is threadedly connected to the connecting sleeve 106. The end of the adjusting screw 107 is provided with a screwdriver head, which can be turned with a screwdriver to drive the adjusting screw 107 to rotate. The locking member is used to lock and limit the adjusting screw 107. By turning the adjusting screw 107, the connecting sleeve 106 can drive the extension rod 103 to extend and retract, thereby realizing adjustment. It is convenient to use and solves the problems of the prior art, which uses fasteners to be inserted into fastening holes for length adjustment. During adjustment, it is difficult to align the fasteners with the fastening holes, and the adjustment can only be made according to the hole position, resulting in poor accuracy and inconvenience.

[0023] Secondly, the limiting groove 108 is located on the side of the fixed sleeve 104 near the connecting sleeve 106; the connecting sleeve 106 has a limiting protrusion 109, which cooperates with the limiting groove 108. The limiting groove 108 is located on the inner wall of the fixed sleeve 104 and is arranged along the length direction of the fixed sleeve 104. The limiting protrusion 109 is located on the outer surface of the connecting sleeve 106. Through the cooperation between the limiting protrusion 109 and the limiting groove 108, the connecting sleeve 106 is limited, thus preventing the extension rod 103 from rotating.

[0024] Meanwhile, the limiting spring 110 is sleeved on the outside of the extension rod 103 and located inside the fixed sleeve 104. The limiting spring 110 is located between the connecting sleeve 106 and the positioning seat 105. When the limiting spring 110 is compressed, the elastic force will prevent the connecting sleeve 106 from continuing to move. Through the limiting spring 110, the extension rod 103 can be prevented from being over-adjusted.

[0025] In addition, the ratchet 112 is fixedly connected to the adjusting screw 107 and is located at the end of the adjusting screw 107 away from the connecting sleeve 106; the locking tooth 113 is rotatably connected to the fixed sleeve 104 and cooperates with the ratchet 112; the two ends of the support spring 114 are respectively connected to the locking tooth 113 and the fixed sleeve 104, the tail end of the fixed sleeve 104 has a mounting groove 111, the ratchet 112 is sleeved on the end of the adjusting screw 107 and is located in the mounting groove 111, the locking tooth 113 is installed in the mounting groove 111 of the fixed sleeve 104 by a pin and can rotate, the support spring 114 can provide elastic support for the locking tooth 113, so that the locking tooth 113 can lock the ratchet 112, and the adjustment screw 107 is limited by the cooperation of the locking tooth 113 and the ratchet 112.

[0026] Finally, the lever 115 is fixedly connected to the locking tooth 113 and is located on the side of the locking tooth 113 away from the fixed sleeve 104. The lever 115 facilitates the movement of the locking tooth 113.

[0027] In this embodiment, during adjustment, the lever 115 is moved outward to disengage the locking teeth 113 from the ratchet 112. At this time, the ratchet 112 is in an unlocked state. By turning the adjusting screw 107 with a screwdriver, the connecting sleeve 106 can drive the extension rod 103 to extend and retract, thereby adjusting the cutter head 102. After adjustment, the lever 115 is released. Under the elastic force of the support spring 114, the locking teeth 113 engage with the ratchet 112, locking the ratchet 112 and preventing the adjusting screw 107 from loosening. This application achieves adjustment simply by turning the adjusting screw 107, which is convenient to use and solves the problems of existing technologies that use fasteners inserted into fastening holes for length adjustment. During adjustment, it is difficult to align the fasteners with the fastening holes, and the adjustment can only be made according to the hole position, resulting in poor accuracy and inconvenience.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An improved T-shaped milling cutter, comprising a mounting base and a cutter head, the cutter head being detachably mounted on the mounting base, characterized in that, further comprising an adjusting assembly; the adjusting assembly comprises an extension rod, a fixed cylinder sleeve, a positioning seat, a connecting sleeve, an adjusting screw and a locking member, the extension rod is fixedly connected with the mounting base and located at one side of the mounting base, the fixed cylinder sleeve is connected with the extension rod through the positioning seat, the positioning seat is detachably mounted on the fixed cylinder sleeve and slidably connected with the extension rod, the connecting sleeve is fixedly connected with the extension rod and located in the fixed cylinder sleeve, the adjusting screw extends into the fixed cylinder sleeve and is rotatably connected with the fixed cylinder sleeve and threadedly connected with the connecting sleeve, and the locking member positions the adjusting screw.

2. The improved T-shaped milling cutter according to claim 1, characterized in that, the fixed cylinder sleeve has a limiting groove, and the limiting groove is located at a side of the fixed cylinder sleeve close to the connecting sleeve; and the connecting sleeve has a limiting protrusion, and the limiting protrusion is matched with the limiting groove.

3. The improved T-shaped milling cutter according to claim 1, characterized in that, the adjusting assembly further comprises a limiting spring, and the limiting spring is sleeved outside the extension rod and located in the fixed cylinder sleeve.

4. The improved T-shaped milling cutter according to claim 1, characterized in that, the locking member comprises a ratchet wheel, a pawl and a supporting spring, the ratchet wheel is fixedly connected with the adjusting screw and located at an end of the adjusting screw away from the connecting sleeve, the pawl is rotatably connected with the fixed cylinder sleeve and matched with the ratchet wheel, and the supporting spring is connected with the pawl and the fixed cylinder sleeve at two ends respectively.

5. The improved T-shaped milling cutter according to claim 4, characterized in that, the locking member further comprises a lever, and the lever is fixedly connected with the pawl and located at a side of the pawl away from the fixed cylinder sleeve.

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