An easy-to-change power head for Swiss-type lathes

Abstract

This utility model relates to a power head for a Swiss-type lathe, and more particularly to a power head for a Swiss-type lathe that is easy to replace. It includes: a mounting base; a transmission assembly fixedly connected to the mounting base; a cutter head assembly disposed on the mounting base; a mounting plate; a first bolt passing through the mounting plate; a main shaft movably connected to the mounting plate, with a cutter head gear at the rear of the main shaft; a cutter head fixedly connected to the front of the main shaft; a mounting ring disposed on the front side of the mounting plate; a second bolt passing through the mounting ring; a rotating ring rotatably connected to the rear side of the mounting ring; and a spring fixedly connected between the rotating ring and the main shaft. This utility model, during the alignment of the cutter head gear and the transmission gear, utilizes the elastic restoring characteristic of the spring to quickly push the main shaft to move and complete the meshing, thereby achieving rapid installation of the cutter head assembly. This avoids wear problems caused by prolonged misalignment of the cutter head gear and the transmission gear, improving replacement convenience and reducing wear.

Description

Technical Field

[0001] This utility model relates to a power head for a Swiss-type lathe, and more particularly to a power head for a Swiss-type lathe that is easy to replace. Background Technology

[0002] The power head of a Swiss-type lathe is the core component of the machining apparatus, mainly composed of a spindle, a transmission gear set, and a cutter head mechanism. In actual machining processes, different types of cutters are often required to adapt to the machining needs of different workpieces, such as drilling, milling, or tapping tools. Since the power head of a Swiss-type lathe primarily achieves synchronous rotation of the cutter head through gear transmission, it is crucial to ensure precise meshing between the newly installed cutter head gear and the transmission gear when changing cutters. Otherwise, transmission failure or gear wear can easily occur. In other words, operators must repeatedly adjust the cutter head position to ensure complete alignment between its gear and the transmission gear when changing cutters. This process is not only time-consuming but also requires a high level of operator experience. Therefore, there is an urgent need for a Swiss-type lathe power head that facilitates rapid cutter head replacement to solve the problems of difficult gear alignment and low replacement efficiency in existing technologies. Utility Model Content

[0003] In view of the deficiencies of the prior art mentioned in the background, the present invention provides a replaceable Swiss-type machine head, which aims to improve the convenience of head replacement.

[0004] The technical solution is: a replaceable Swiss Army machine power head, comprising: a mounting base; a transmission assembly fixedly connected to the mounting base, the transmission assembly consisting of a transmission shaft and a transmission gear; characterized in that the structure further comprises: a cutter head assembly disposed on the mounting base, the cutter head assembly being provided in at least two sets, each set of the transmission gear being disposed at the rear of the cutter head assembly;

[0005] The cutter head assembly includes: a mounting plate; a first bolt fitted onto the mounting plate, the first bolt being threadedly connected to the mounting seat; a main rotating shaft movably connected to the mounting plate, the main rotating shaft being able to rotate relative to the mounting plate and move back and forth relative to the mounting plate, a cutter head gear being provided at the rear of the main rotating shaft, the cutter head gear meshing with the transmission gear; and a cutter head fixedly connected to the front of the main rotating shaft for machining workpieces.

[0006] The structure further includes: a mounting ring disposed on the front side of the mounting plate; a second bolt sleeved on the mounting ring, the second bolt being threadedly connected to the mounting plate; a rotating ring rotatably connected to the rear side of the mounting ring; and a spring fixedly connected between the rotating ring and the main rotating shaft.

[0007] As a further limitation of this technical solution, the structure also includes: a plug block fixedly connected to the rotating ring, the plug block adopting a tapered design with a larger front and a smaller rear, and a slot corresponding to the plug block being opened on the main rotating shaft; and a limiting shaft fixedly connected to the rear end of the plug block, the limiting shaft being constrained inside the slot.

[0008] As a further limitation of this technical solution, the structure also includes: a ball embedded in the front side of the rotating ring, the ball being disposed between the rotating ring and the mounting ring.

[0009] As a further limitation of this technical solution, the structure also includes: a deformation pad fixedly connected to the outer ring of the insert block, the deformation pad being capable of elastic deformation.

[0010] As a further limitation of this technical solution, the structure also includes: a telescopic sleeve fixedly connected between the mounting ring and the mounting plate, the telescopic sleeve covering the spring.

[0011] As a further limitation of this technical solution, the structure also includes: a protective cover fixedly connected to the first bolt and the second bolt, the protective cover being used to prevent machining debris from entering the threaded connection.

[0012] As a further limitation of this technical solution, the structure also includes: a guide frame fixedly connected to the mounting base, the guide frame being used to position the mounting plate.

[0013] As a further limitation of this technical solution, the structure also includes: an identification ring fixedly connected to the second bolt, the identification ring being used to indicate the screwing position of the second bolt.

[0014] The beneficial effects of this invention are as follows: During the alignment of the tooth grooves of the cutter head gear and the transmission gear, the elastic restoring characteristic of the spring quickly pushes the main shaft to move and complete the meshing, thereby achieving rapid installation of the cutter head assembly. This avoids wear problems caused by prolonged misalignment of the cutter head gear and the transmission gear, improves replacement convenience, and reduces wear. This invention employs an interference fit structure of a tapered insert and a slot to fix the relative position of the rotating ring and the main shaft, ensuring that the rotating ring always rotates synchronously with the main shaft during processing, effectively preventing damage to the spring due to relative torsion. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only for the present utility model and protect some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the blade head assembly of this utility model.

[0018] Figure 3 This is a diagram showing the separation of the connection structure of the cutter head assembly of this utility model.

[0019] Figure 4 This is a cross-sectional view of the connection structure of the cutter head assembly, swivel ring, and mounting ring of this utility model.

[0020] Figure 5 This is a separate diagram showing the connection structure of the cutter head assembly, swivel ring, and mounting ring of this utility model.

[0021] Figure 6 This is a cross-sectional view of the mating structure of the slot and the plug of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1_Mounting base, 2_Transmission assembly, 3_Cutter head assembly, 301_Mounting plate, 302_First bolt, 303_Main shaft, 304_Cutter head, 305_Cutter head gear, 4_Spring, 5_Rotating ring, 6_Mounting ring, 7_Second bolt, 8_Slot, 9_Insertion block, 10_Limiting shaft, 11_Ball, 12_Deformation pad, 13_Telescopic sleeve, 14_Protective cover, 15_Guide frame, 16_Identification ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0024] Example: An easily replaceable power head for Swiss-type lathes, combined with... Figures 1-5 As shown, the structure includes a mounting base 1; a transmission assembly 2 fixedly installed in the mounting base 1, the transmission assembly 2 consisting of a transmission shaft and a multi-stage meshing transmission gear, the transmission assembly 2 achieving transmission; the structure also includes: a cutter head assembly 3 set on the mounting base 1, the mounting base 1 having a total of three cutter head assemblies 3, each of the three cutter head assemblies 3 having a corresponding transmission gear at the rear.

[0025] The cutter head assembly 3 includes: a mounting plate 301, with mounting holes at all four corners and a bearing in its center; a first bolt 302 passing through the mounting holes and fitted onto the mounting plate 301, the first bolt 302 being threadedly connected to the mounting base 1; a main rotating shaft 303 movably mounted in the center of the mounting plate 301, capable of rotating relative to the mounting plate 301 and moving back and forth relative to the mounting plate 301, the main rotating shaft 303 contacting the bearing on the mounting plate 301, a cutter head gear 305 at the rear of the main rotating shaft 303 meshing with a transmission gear in the transmission assembly 2, the transmission assembly 2 controlling the rotation of the main rotating shaft 303 through this transmission, and the transmission assembly 2 controlling the synchronous rotation of all main rotating shafts 303; and a cutter head 304 fixedly mounted at the front of the main rotating shaft 303 for machining workpieces.

[0026] The structure also includes: a mounting ring 6 located on the front side of the mounting plate 301, with mounting holes on the left and right sides of the mounting ring 6; a second bolt 7 passing through the mounting holes and fitted onto the mounting ring 6, the second bolt 7 being threadedly connected to the mounting plate 301; a rotating ring 5 rotatably mounted on the rear side of the mounting ring 6; and a spring 4 fixedly mounted between the rotating ring 5 and the main rotating shaft 303.

[0027] First, the cutter head assembly 3 is installed into the mounting base 1, and the mounting plate 301 is fixed to the mounting base 1 using the first bolt 302. When the cutter head gear 305 on the main shaft 303 is not engaged with the transmission gear of the transmission assembly 2, the transmission gear will restrict the position of the cutter head gear 305, causing them to be in a misaligned state. After the mounting plate 301 is completely fixed to the mounting base 1, due to the restriction of the cutter head gear 305 by the transmission gear, the position of the main shaft 303 will shift forward relative to the mounting plate 301 and the mounting ring 6, causing the spring 4 to be compressed. At this time, the relative position of the cutter head gear 305 and the transmission gear is adjusted by rotating the cutter head 304 and the main shaft 303. When the cutter head gear 305 is aligned with the tooth groove of the transmission gear, the spring 4 will quickly reset and push the main shaft 303 backward. The main shaft 303 moves to engage the cutter head gear 305 with the transmission gear, thereby enabling quick installation of the cutter head assembly 3. This avoids wear problems caused by prolonged misalignment of the cutter head gear 305 and the transmission gear, improves the ease of replacement of the cutter head assembly 3, and reduces wear. After the cutter head gear 305 and the transmission gear are engaged, the main shaft 303 moves until its front end abuts against the bearing on the mounting plate 301. At this time, the second bolt 7 is tightened to move the mounting ring 6 backward, reducing the distance between the mounting ring 6 and the mounting plate 301, compressing the spring 4 to its limit, thereby locking the front and rear positions of the main shaft 303 and ensuring that it can stably transmit rotational power to drive the cutter head 304 to process the workpiece. During the rotation of the main shaft 303, the rotating ring 5, the spring 4, and the bearing on the mounting plate 301 will rotate synchronously.

[0028] Combination Figures 4-6As shown, the structure also includes: a plug 9 fixedly installed on the rotating ring 5. The plug 9 adopts a tapered design with a larger front and a smaller rear. A slot 8 corresponding to the plug 9 is provided on the main rotating shaft 303; a limiting shaft 10 fixedly installed at the rear end of the plug 9. The limiting shaft 10 is constrained inside the slot 8 to prevent the plug 9 from separating from the slot 8.

[0029] After the cutting head gear 305 and the transmission gear are engaged, when the spring 4 is compressed, the insert 9 is inserted into the slot 8. The relative position of the rotating ring 5 and the main rotating shaft 303 is fixed by the interference fit between the tapered insert 9 and the slot 8, ensuring that the rotating ring 5 can always rotate synchronously with the main rotating shaft 303 during the processing, effectively preventing the spring 4 from being damaged due to relative torsion.

[0030] Combination Figure 1 , Figure 2 , Figure 4 , Figure 5 and 6 As shown, this structure also includes: a ball bearing 11 embedded in the front of the rotating ring 5, the ball bearing 11 being disposed between the rotating ring 5 and the mounting ring 6 to reduce frictional resistance and improve the smoothness of rotation of the rotating ring 5; a deformation pad 12 fixedly installed on the outer ring of the insert block 9, the deformation pad 12 being capable of elastic deformation, the insert block 9 utilizing the deformation characteristics of the deformation pad 12 to improve the fit stability between the insert block 9 and the slot 8; a telescopic sleeve 13 fixedly installed between the mounting ring 6 and the mounting plate 301, the telescopic sleeve 13 covering the spring 4 to isolate external impurities and prevent damage to the spring 4; and a bolt fixedly installed on the first bolt 302 and the second bolt 302. The protective cover 14 on bolt 7 is used to prevent machining debris from entering the threaded connection and to ensure the smooth installation and removal of the first bolt 302 and the second bolt 7. The guide frame 15 is fixedly installed on the mounting base 1. The guide frame 15 is used to position the mounting plate 301, making the installation of the first bolt 302 more accurate and convenient. The marking ring 16 is fixedly installed on the second bolt 7. The marking ring 16 is used to visually indicate the screwing position of the second bolt 7, to avoid damage to the spring 4 due to overpressure, and to prevent the mounting ring 6 from separating excessively from the mounting plate 301 during disassembly, which would affect subsequent use.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An easily replaceable power head for a Swiss-type lathe, comprising: Mounting base (1); transmission assembly (2) fixedly connected to the mounting base (1), the transmission assembly (2) being composed of a transmission shaft and a transmission gear; characterized in that the replaceable Swiss-type machine power head further includes: a cutter head assembly (3) provided on the mounting base (1), the cutter head assembly (3) being provided in at least two sets, and each set of the cutter head assembly (3) having a corresponding transmission gear at the rear of it; The cutter head assembly (3) includes: a mounting plate (301); a first bolt (302) sleeved on the mounting plate (301), the first bolt (302) being threadedly connected to the mounting base (1); a main rotating shaft (303) movably connected to the mounting plate (301), the main rotating shaft (303) being able to rotate relative to the mounting plate (301) and move back and forth relative to the mounting plate (301), the rear of the main rotating shaft (303) being provided with a cutter head gear (305), the cutter head gear (305) meshing with the transmission gear; and a cutter head (304) fixedly connected to the front of the main rotating shaft (303) for machining workpieces. The replaceable Swiss-type machine power head also includes: a mounting ring (6) disposed on the front side of the mounting plate (301); a second bolt (7) sleeved on the mounting ring (6), the second bolt (7) being threadedly connected to the mounting plate (301); a rotating ring (5) rotatably connected to the rear side of the mounting ring (6); and a spring (4) fixedly connected between the rotating ring (5) and the main rotating shaft (303).

2. The replaceable power head for a Swiss-type lathe according to claim 1, characterized in that, The replaceable Swiss-type machine power head also includes: a plug (9) fixedly connected to the swivel (5), the plug (9) adopting a tapered design with a larger front and a smaller rear, and a slot (8) corresponding to the plug (9) is provided on the main rotating shaft (303); a limiting shaft (10) fixedly connected to the rear end of the plug (9), the limiting shaft (10) being constrained inside the slot (8).

3. The easily replaceable power head for a Swiss-type lathe according to claim 2, characterized in that, The replaceable Swiss Army machine power head also includes: a ball bearing (11) embedded in the front side of the swivel ring (5), the ball bearing (11) being disposed between the swivel ring (5) and the mounting ring (6).

4. The replaceable power head for a Swiss-type lathe according to claim 3, characterized in that, The replaceable Swiss Army machine power head also includes: a deformation pad (12) fixedly connected to the outer ring of the insert (9), the deformation pad (12) being capable of elastic deformation.

5. The easily replaceable power head for a Swiss-type lathe according to claim 4, characterized in that, The replaceable Swiss Army machine power head also includes: a telescopic sleeve (13) fixedly connected between the mounting ring (6) and the mounting plate (301), the telescopic sleeve (13) covering the spring (4).

6. The easily replaceable power head for a Swiss-type lathe according to claim 5, characterized in that, The replaceable Swiss-type machine head also includes a protective cover (14) fixedly connected to the first bolt (302) and the second bolt (7), the protective cover (14) being used to prevent machining debris from entering the threaded connection.

7. The replaceable power head for a Swiss-type lathe according to claim 6, characterized in that, The replaceable Swiss-type machine power head also includes a guide frame (15) fixedly connected to the mounting base (1), the guide frame (15) being used to position the mounting plate (301).

8. The replaceable power head for a Swiss-type lathe according to claim 7, characterized in that, The replaceable Swiss-type machine power head also includes: an indicator ring (16) fixedly connected to the second bolt (7), the indicator ring (16) being used to indicate the screwing position of the second bolt (7).

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