A keyway tool setting device for a vertical milling machine

Abstract

The utility model relates to mechanical processing technical field especially is a vertical milling machine keyway tool setting device, including tool setting mechanism and be used for determining the relative position of tool and workpiece, tool setting mechanism includes: main part assembly, including the ring stand of installation on the milling machine, three guide seats of circumferential distribution are fixed in the ring stand interior, the circular ring is rotatably installed in the ring stand interior, three guide slots of circumferential distribution are seted up in the circular ring interior, the locating head is slidably installed in the guide seat interior and penetrates, the locating head rotatably installs the pin rod in the interior, and the pin rod is located in the guide slot interior, and the adjusting part is seted up on the ring stand and is used for driving circular ring rotation, fixed assembly sets up on main part assembly and is used for tool installation, through three point synchronous centering mechanism fast alignment workpiece axle center, avoids manual adjustment, improves tool setting efficiency and symmetry accuracy, ball contact protects workpiece surface, worm self-locking ensures positioning stability, adapts to different diameter workpiece, is applicable to batch high-precision machining.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a keyway tool setting device for a vertical milling machine. Background Technology

[0002] In the field of mechanical manufacturing, keyway machining is a crucial process in the production of shaft parts, widely used in the production of key components such as drive shafts and gear shafts. Vertical milling machines, as one of the main pieces of equipment for keyway machining, directly impact product quality and production costs through their machining accuracy and efficiency. With the development of modern manufacturing, machining is continuously progressing towards higher precision and efficiency, placing higher demands on machining equipment and auxiliary tooling. Accurately determining the relative position of the tool and workpiece is a key step in ensuring machining quality during keyway machining. This process requires comprehensive consideration of multiple factors, including workpiece clamping and positioning, tool installation and adjustment, and machining parameter settings.

[0003] According to CN108788921B, a tool setting device for milling keyways is disclosed. This technology discloses "a tool setting device for milling keyways, including a vertical plate fixed below the milling cutter of a milling machine, a swing plate oscillatingly connected to one side end face of the vertical plate, a "V"-shaped groove at the bottom of the swing plate, and a swing plate oscillatingly connected to the vertical plate via a swing shaft. The axis of the swing shaft is located on the straight line of the bisector of the included angle of the "V"-shaped groove. The vertical plate is provided with a reference line structure, and the top of the swing plate is provided with a tool setting line structure corresponding to the reference line structure. The reference line structure is located on the straight line of the bisector of the included angle of the "V"-shaped groove, and the tool setting line structure is located in the plane formed by the axis of the swing shaft and the bisector of the included angle of the "V"-shaped groove." This technical solution has the technical effects of "simple structure, convenient tool setting operation, high tool setting accuracy, improved production efficiency, and easy promotion and use."

[0004] Existing keyway tool setting devices on milling machines rely on manual repeated adjustments of the relative positions of the tool and the workpiece when machining shaft-type workpieces. This makes it difficult to achieve quick and accurate alignment of the axis, resulting in poor keyway symmetry and low machining efficiency. In particular, the problem of accumulated errors from manual tool setting is prominent in mass production, which cannot meet the machining requirements of high-precision keyways. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a keyway tool setting device for vertical milling machines. It quickly aligns with the workpiece axis through a three-point synchronous centering mechanism, avoiding manual adjustment and improving tool setting efficiency and symmetry accuracy. The ball bearings protect the workpiece surface, and the worm gear self-locking ensures stable positioning. It is adaptable to workpieces of different diameters and is suitable for batch high-precision machining.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a keyway tool setting device for a vertical milling machine, comprising a tool setting mechanism for determining the relative position of the tool and the workpiece, wherein the tool setting mechanism includes:

[0007] The main components include a ring frame mounted on a milling machine, three circumferentially distributed guide seats fixed inside the ring frame, a ring rotatably mounted inside the ring frame, three circumferentially distributed guide grooves opened inside the ring, a positioning head slidably mounted through inside the guide seats, a pin rotatably mounted inside the positioning head, and the pin is located inside the guide groove. An adjustment component is provided on the ring frame for driving the ring to rotate.

[0008] A mounting component, set on the main body component and used for tool mounting.

[0009] Preferably, the adjusting component includes bearing seats fixed on both sides of the lower end of the ring frame, a worm wheel fixed on the outer wall of the ring, and a worm rotatably mounted between the bearing seats at both ends, with the worm meshing with the worm wheel for transmission.

[0010] Preferably, the adjusting component further includes internal hexagonal holes formed at both ends of the worm gear.

[0011] Preferably, the main component further includes a ball bearing installed at the inner end of the positioning head.

[0012] Preferably, the main component further includes a slot formed inside the positioning head.

[0013] Preferably, the fixing component includes a fixing seat fixed to the front end of the ring frame, a fixing frame fixed to the front end of the fixing seat by bolts, and a clamp fixed between the fixing seat and the fixing frame.

[0014] Beneficial effects

[0015] This invention provides a keyway tool setting device for a vertical milling machine. Compared with the prior art, it has the following advantages:

[0016] 1. By inserting a hex wrench into the internal hexagonal hole to rotate the worm gear, the worm gear drives the ring to rotate via the worm wheel. When the ring rotates, it drives the positioning head to slide along the inside of the guide seat through the guide groove and the pin. The three positioning heads move synchronously and equidistantly towards the axis, using three points to determine the center of the circle to quickly align the workpiece axis, avoiding repeated manual adjustments, improving tool setting efficiency and symmetry accuracy. Furthermore, it can be adapted to shaft workpieces of different diameters, has strong versatility, and is suitable for batch processing scenarios.

[0017] 2. When the positioning head is centered on the workpiece, it contacts the workpiece surface through the ball bearings. Since the contact with the workpiece is a rolling friction, it avoids scratching the surface of the precision workpiece. The worm gear transmission has a reverse self-locking characteristic, which prevents the ring from rotating accidentally due to vibration or external force, thus enhancing the positioning reliability. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the front of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the back of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the ring frame in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the ring in this utility model;

[0022] Figure 5 This is a schematic diagram of the positioning head in this utility model.

[0023] In the diagram: 1. Tool setting mechanism; 11. Main assembly; 111. Ring frame; 112. Guide seat; 113. Ring; 114. Guide groove; 115. Positioning head; 116. Pin; 117. Ball; 118. Groove; 119. Adjusting component; 1191. Shaft seat; 1192. Worm gear; 1193. Worm; 1194. Socket hexagonal hole; 12. Fixing assembly; 121. Fixing seat; 122. Fixing bracket; 123. Chuck. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a keyway tool setting device for a vertical milling machine, including a tool setting mechanism 1 for determining the relative position of the tool and the workpiece, the tool setting mechanism 1 including:

[0026] The main component 11 includes a ring frame 111 mounted on a milling machine. Three guide seats 112 are fixed inside the ring frame 111. A ring 113 is rotatably mounted inside the ring frame 111. Three guide grooves 114 are circumferentially distributed inside the ring 113. A positioning head 115 is slidably mounted through the guide seats 112. A pin 116 is rotatably mounted inside the positioning head 115 and is located inside the guide grooves 114. An adjustment component 119 is provided on the ring frame 111 for driving the ring 113 to rotate.

[0027] The fixing component 12 is mounted on the main body component 11 and is used for tool mounting.

[0028] In this embodiment, when the ring 113 rotates, the guide groove 114, in conjunction with the pin 116, drives the positioning head 115 to slide along the inside of the guide seat 112. The three positioning heads 115 move synchronously and equidistantly toward the axis, and the center of the circle is determined by three points to quickly align the workpiece axis, avoiding repeated manual adjustments, improving tool setting efficiency and symmetry accuracy. Furthermore, it can be adapted to shaft workpieces of different diameters, has strong versatility, and is suitable for batch processing scenarios.

[0029] Specifically, the adjusting component 119 includes bearing seats 1191 fixed on both sides of the lower end of the ring frame 111, a worm wheel 1192 fixed on the outer wall of the ring 113, and a worm 1193 rotatably mounted between the bearing seats 1191 at both ends, and the worm 1193 meshes with the worm wheel 1192 for transmission.

[0030] In this embodiment, a hex wrench can be inserted into the internal hexagonal hole 1194 to rotate the worm gear 1193, which in turn drives the ring 113 to rotate via the worm wheel 1192.

[0031] Specifically, the adjusting component 119 also includes internal hexagonal holes 1194 at both ends of the worm gear 1193, which can be used to rotate the worm gear 1193 by inserting a hexagonal wrench into the internal hexagonal holes 1194.

[0032] In this embodiment, the worm gear 1193 transmission has a reverse self-locking characteristic, thereby preventing the ring 113 from rotating unexpectedly due to vibration or external force, and enhancing the positioning reliability.

[0033] Specifically, the main component 11 also includes a ball bearing 117 installed at the inner end of the positioning head 115.

[0034] In this embodiment, when the positioning head 115 centers the workpiece, it contacts the workpiece surface through the ball bearing 117. Since the contact with the workpiece is a rolling friction, it avoids scratching the surface of the precision workpiece.

[0035] Specifically, the main component 11 also includes a slot 118 formed inside the positioning head 115.

[0036] In this embodiment, the slot 118 provides clearance space for the positioning head 115, ensuring that the ring 113 rotates without jamming with the positioning head 115, thus improving the reliability of the operation.

[0037] Specifically, the fixing component 12 includes a fixing seat 121 fixed to the front end of the ring frame 111, a fixing bracket 122 fixed to the front end of the fixing seat 121 by bolts, and a clamp 123 fixed between the fixing seat 121 and the fixing bracket 122.

[0038] In this embodiment, the chuck 123 supports quick tool changes, reducing downtime.

[0039] The working principle and usage process of this utility model are as follows: First, a hexagonal wrench is inserted into the internal hexagonal hole 1194 to rotate the worm gear 1193. The worm gear 1193 drives the ring 113 to rotate through the worm wheel 1192. When the ring 113 rotates, the guide groove 114, in conjunction with the pin 116, drives the positioning head 115 to slide along the inside of the guide seat 112. The three positioning heads 115 move synchronously and equidistantly towards the axis, using three points to determine the center of the circle to quickly align the workpiece axis, avoiding repeated manual adjustments, improving tool setting efficiency and symmetry accuracy. Furthermore, it can be adapted to shaft workpieces of different diameters, has strong versatility, and is suitable for batch processing scenarios.

[0040] When the positioning head 115 centers the workpiece, it contacts the workpiece surface through the ball bearing 117. Since the contact with the workpiece is a rolling friction, it avoids scratching the surface of the precision workpiece.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A keyway tool setting device for a vertical milling machine, characterized in that: Includes a tool setting mechanism (1) for determining the relative position of the tool and the workpiece. The tool setting mechanism (1) includes: The main component (11) includes a ring frame (111) mounted on a milling machine. Three guide seats (112) are fixed inside the ring frame (111). A ring (113) is rotatably mounted inside the ring frame (111). Three guide grooves (114) are circumferentially distributed inside the ring (113). A positioning head (115) is slidably mounted through inside the guide seat (112). A pin (116) is rotatably mounted inside the positioning head (115). The pin (116) is located inside the guide groove (114). An adjusting component (119) is provided on the ring frame (111) and is used to drive the ring (113) to rotate. A fixing component (12) is disposed on the main body component (11) and used for tool mounting.

2. The keyway tool setting device for a vertical milling machine according to claim 1, characterized in that: The adjusting component (119) includes a bearing seat (1191) fixed on both sides of the lower end of the ring frame (111), a worm wheel (1192) fixed on the outer wall of the ring (113), and a worm (1193) rotatably mounted between the bearing seats (1191) at both ends, and the worm (1193) meshes with the worm wheel (1192) for transmission.

3. The keyway tool setting device for a vertical milling machine according to claim 1, characterized in that: The adjusting component (119) also includes internal hexagonal holes (1194) at both ends of the worm (1193).

4. The keyway tool setting device for a vertical milling machine according to claim 1, characterized in that: The main component (11) also includes a ball bearing (117) installed at the inner end of the positioning head (115).

5. A keyway tool setting device for a vertical milling machine according to claim 1, characterized in that: The main component (11) also includes a slot (118) formed inside the positioning head (115).

6. A keyway tool setting device for a vertical milling machine according to claim 1, characterized in that: The fixing component (12) includes a fixing seat (121) fixed to the front end of the ring frame (111), a fixing frame (122) fixed to the front end of the fixing seat (121) by bolts, and a clamp (123) fixed between the fixing seat (121) and the fixing frame (122).

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