A quick-change machine tool driven wheel assembly

Abstract

The utility model relates to driven wheel technical field especially is a kind of quick replacement type machine tool driven wheel assembly, including driven wheel, driven wheel front end and rear end are all set up anti-rotation slot, anti-rotation slot inside is inserted with anti-rotation plug-in block, anti-rotation plug-in block outside is fixedly connected with operating assembly, operating assembly slidingly connects in the inboard of axle assembly, axle assembly includes axle column, the position of axle column near outside is set up external sliding slot, the position of axle column near inside is set up built-in sliding slot and accommodating groove, accommodating groove one end is fixedly connected with spring, the one end of axle column near driven wheel is fixedly connected with expansion seat, the outside of axle column is fixedly connected with spiral strip, spring and anti-rotation plug-in block between fixed connection, in the utility model, device can be accurate replacement to driven wheel itself, this design effectively avoids the connection precision decline problem caused by frequent overall disassembly, simultaneously significantly reduces the complexity and difficulty of replacement work.

Description

Technical Field

[0001] This utility model relates to the field of driven wheel technology, specifically a quick-change machine tool driven wheel assembly. Background Technology

[0002] The driven wheel assembly is a key component in the machine tool transmission system. It typically includes the driven wheel itself, bearings, shafts, seals, and other related parts. Through its cooperation with the driving wheel or transmission belt, it transmits power to other components of the machine tool, such as the spindle and feed mechanism, thereby realizing the machine tool's motion and machining functions. The design and quality of the driven wheel assembly directly affect the machine tool's transmission efficiency, operational smoothness, and machining accuracy. During the long-term operation of a machine tool, the driven wheel will inevitably suffer a certain degree of wear. This wear will form various marks on the surface of the driven wheel, such as scratches, pits, and irregularly shaped wear areas. These wear marks will interfere with the normal contact between the driven wheel and the transmission belt or gear, thereby destroying the stability of the transmission process. When this happens, in order to restore the normal function of the driven wheel and ensure the smooth operation of the transmission system, it is necessary to remove the driven wheel from the machine tool and carry out necessary maintenance and repair work. In practice, when disassembling a machine tool driven wheel, it is usually necessary to first remove the shafts at both ends and the external equipment connected to them. However, the driven wheel itself will be in direct contact with the workpiece during operation, so it needs to be maintained regularly. This means that when maintaining the driven wheel, the external equipment connected to it must be removed before the driven wheel itself can be taken off, which undoubtedly increases the complexity and difficulty of disassembly. Therefore, to address the above problems, a quick-change machine tool driven wheel assembly is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a quick-change machine tool driven wheel assembly to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A quick-change machine tool driven wheel assembly includes a driven wheel with anti-rotation grooves at both its front and rear ends. An anti-rotation block is inserted into the inner side of each anti-rotation groove. An operating component is fixedly connected to the outer side of each anti-rotation block. The operating component is slidably connected to the inner side of a shaft assembly. The shaft assembly includes a shaft post with an external sliding groove near its outer side and an internal sliding groove and a receiving groove near its inner side. A spring is fixedly connected to one end of the receiving groove. An extension seat is fixedly connected to the end of the shaft post near the driven wheel. A spiral strip is fixedly connected to the outer side of the shaft post. The spring is fixedly connected to the anti-rotation block, which is slidably connected inside the internal sliding groove and the receiving groove.

[0005] As a further optimization of this utility model, the two shaft assemblies and two operating components are distributed at the front and rear ends of the driven wheel, and the front and rear ends of the driven wheel are both in contact with the extension seat. One end of the anti-rotation groove is provided with a chamfer.

[0006] As a further optimization of this utility model, the external slide groove, the internal slide groove, and the receiving groove are connected, and the position where the shaft column connects to the expansion seat is chamfered.

[0007] As a further optimization of this utility model, a guide block is provided on the outer side of the anti-rotation insertion block, and the guide block of the anti-rotation insertion block is fixedly connected to the fixing plate.

[0008] As a further optimization of this utility model, the operating component includes a sleeve, a fixing plate is fixedly connected to the inner side of the sleeve, the sleeve is sleeved on the outer side of the shaft column, a gap is provided between the inner side of the sleeve and the outer side of the shaft column, and the fixing plate is slidably connected to the inside of the external sliding groove.

[0009] As a further optimization of this utility model, the sleeve has an annular groove on its inner side, and a limiting ring is rotatably connected to the inner side of the annular groove. The limiting ring and the operating cylinder are integrally fixed. The operating cylinder is sleeved on the outer side of the shaft column, and the inner side of the operating cylinder is clearance-fitted with the outer side of the shaft column.

[0010] As a further optimization of this utility model, the operating cylinder has a threaded hole on its inner side, and the threaded hole is screwed onto the spiral strip.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, by setting up an anti-rotation insert block, shaft assembly, and operating assembly, the device can replace the machine tool driven wheel assembly without disassembling the entire driven wheel. It can precisely replace the driven wheel itself. This design effectively avoids the problem of decreased connection accuracy caused by frequent overall disassembly and assembly, while significantly reducing the complexity and difficulty of replacement work, improving maintenance efficiency, reducing downtime, and helping to maintain the stability and machining accuracy of the machine tool transmission system, thereby improving the overall performance and service life of the machine tool. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded structural diagram of the entire utility model; Figure 3 This is a schematic diagram of the shaft assembly structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the anti-rotation insert block of this utility model; Figure 5 This is a schematic diagram of the spring structure of this utility model; Figure 6 This is a cross-sectional structural diagram of the operating component of this utility model.

[0013] In the diagram: 1. Driven wheel; 2. Anti-rotation groove; 3. Anti-rotation insert; 4. Shaft assembly; 41. Shaft column; 42. External slide groove; 43. Internal slide groove; 44. Spring; 45. Spiral strip; 46. Extension seat; 47. Receiving groove; 5. Operating components; 51. Sleeve; 52. Fixing plate; 53. Annular groove; 54. Limiting ring; 55. Operating cylinder; 56. Threaded hole. Detailed Implementation

[0014] 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.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] Please see Figures 1-6 This utility model provides a technical solution: A quick-change machine tool driven wheel assembly includes a driven wheel 1. Anti-rotation grooves 2 are provided at both the front and rear ends of the driven wheel 1. An anti-rotation block 3 is inserted into the inner side of the anti-rotation groove 2. An operating component 5 is fixedly connected to the outer side of the anti-rotation block 3. The operating component 5 is slidably connected to the inner side of a shaft assembly 4. The shaft assembly 4 includes a shaft post 41. An external sliding groove 42 is provided near the outside of the shaft post 41. An internal sliding groove 43 and a receiving groove 47 are provided near the inside of the shaft post 41. A spring 44 is fixedly connected to one end of the receiving groove 47. An extension seat 46 is fixedly connected to one end of the shaft post 41 near the driven wheel 1. A spiral strip 45 is fixedly connected to the outer side of the shaft post 41. The spring 44 is fixedly connected to the anti-rotation block 3. The anti-rotation block 3 is slidably connected inside the internal sliding groove 43 and the receiving groove 47.

[0017] As a further implementation of this solution, two shaft assemblies 4 and two operating assemblies 5 are distributed at the front and rear ends of the driven wheel 1. Both the front and rear ends of the driven wheel 1 are in contact with the extension seat 46. One end of the anti-rotation groove 2 is chamfered. Through the above settings, the driven wheel 1 is more convenient to install and disassemble. The chamfer design allows for a slight deviation between the anti-rotation groove 2 and the anti-rotation insert 3, which improves the convenience and fault tolerance of installation and reduces the installation difficulties and time costs caused by inaccurate positioning. As a further implementation of this solution, the external slide 42, the internal slide 43 and the receiving groove 47 are connected. The position where the shaft column 41 is connected to the extension seat 46 is chamfered. Through the above setting, the purpose of limiting the movement of the anti-rotation plug 3 and the operating component 5 is achieved. The chamfer design improves the connection strength between the shaft column 41 and the extension seat 46. As a further implementation of this solution, a guide block is provided on the outside of the anti-rotation insert block 3. The guide block of the anti-rotation insert block 3 is fixedly connected to the fixing plate 52. With the above arrangement, the guide block design of the anti-rotation insert block 3 can drive the shaft assembly 4, the anti-rotation insert block 3 and the driven wheel 1 to rotate simultaneously through the drive wheel. As a further implementation of this solution, the operating component 5 includes a sleeve 51, a fixing plate 52 fixedly connected to the inner side of the sleeve 51, the sleeve 51 being sleeved on the outer side of the shaft column 41, and a gap being provided between the inner side of the sleeve 51 and the outer side of the shaft column 41. The fixing plate 52 is slidably connected to the inside of the external sliding groove 42. Through the above arrangement, the torsion between the shaft assembly 4 and the operating component 5 is prevented, and space is left for the assembly between the operating sleeve 55 and the shaft column 41. As a further implementation of this solution, an annular groove 53 is provided on the inner side of the sleeve 51. A limiting ring 54 is rotatably connected to the inner side of the annular groove 53. The limiting ring 54 and the operating cylinder 55 are integrally fixed structures. The operating cylinder 55 is sleeved on the outer side of the shaft column 41. The inner side of the operating cylinder 55 is clearance-fitted with the outer side of the shaft column 41. A threaded hole 56 is provided on the inner side of the operating cylinder 55. The threaded hole 56 is screwed to the spiral strip 45. With the above settings, after rotating the operating cylinder 55, the shaft column 41 and the operating cylinder 55 can be fixed through the threaded hole 56 and the spiral strip 45. This effectively controls the position of the anti-rotation insert 3, thereby improving the convenience of disassembling and assembling the driven wheel 1.

[0018] Workflow: When replacing the driven wheel 1, first disassemble the used driven wheel 1. Hold the operating cylinder 55 and pull it to move the operating assembly 5 away from the driven wheel 1. The fixing plate 52 slides inside the external slide groove 42. The fixing plate 52 drives the anti-rotation block 3 to move away from the driven wheel 1. The anti-rotation block 3 slides inside the internal slide groove 43 and the receiving groove 47. The anti-rotation block 3 compresses the spring 44. When the threaded hole 56 and the spiral bar 4... After contact, rotate the operating cylinder 55. The operating cylinder 55 is rotatably connected to the sleeve 51 through the limiting ring 54 and the annular groove 53. The threaded hole 56 is threadedly connected to the spiral strip 45. This has the effect of positioning the operating component 5 and the anti-rotation plug 3 until the anti-rotation plug 3 is disengaged from the anti-rotation groove 2. Then, hold the driven wheel 1 with one hand and operate the operating component 5 at the other end in the same way as above. When the anti-rotation plugs 3 at both ends are disengaged from the anti-rotation groove 2, the driven wheel 1 can be removed. When installing the intact driven wheel 1, the two anti-rotation blocks 3 are stored inside the receiving groove 47, and the driven wheel 1 is placed between the two extension seats 46, so that the anti-rotation groove 2 and the anti-rotation block 3 are aligned. The chamfer of the anti-rotation groove 2 allows for a slight deviation between the anti-rotation groove 2 and the anti-rotation block 3, which improves the convenience of installation. By rotating the operating cylinder 55, the threaded hole 56 is disengaged from the spiral strip 45. The spring 44 pushes the anti-rotation block 3 and the operating component 5 to move, so that the two anti-rotation blocks 3 are inserted into the anti-rotation groove 2, thus completing the replacement of the driven wheel 1. Based on the above principles, when replacing the driven wheel 1, the device does not need to completely remove the driven wheel 1. Instead, the driven wheel 1 itself can be replaced. This replacement method avoids the decrease in connection accuracy caused by frequent disassembly and reassembly of the driven wheel 1 from external equipment, while also reducing the complexity and difficulty of replacement.

[0019] 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 quick-change machine tool driven wheel assembly, comprising a driven wheel (1), characterized in that: The driven wheel (1) has anti-rotation grooves (2) at both the front and rear ends. An anti-rotation block (3) is inserted into the inner side of the anti-rotation groove (2). An operating component (5) is fixedly connected to the outer side of the anti-rotation block (3). The operating component (5) is slidably connected to the inner side of the shaft assembly (4). The shaft assembly (4) includes a shaft post (41), an external sliding groove (42) is provided near the outside of the shaft post (41), an internal sliding groove (43) and a receiving groove (47) are provided near the inside of the shaft post (41), a spring (44) is fixedly connected to one end of the receiving groove (47), an extension seat (46) is fixedly connected to one end of the shaft post (41) near the driven wheel (1), a spiral strip (45) is fixedly connected to the outside of the shaft post (41), the spring (44) is fixedly connected to the anti-rotation plug (3), and the anti-rotation plug (3) is slidably connected inside the internal sliding groove (43) and the receiving groove (47).

2. The quick-change machine tool driven wheel assembly according to claim 1, characterized in that: The two shaft assemblies (4) and the two operating assemblies (5) are distributed at the front and rear ends of the driven wheel (1). The front and rear ends of the driven wheel (1) are both in contact with the extension seat (46). One end of the anti-rotation groove (2) is chamfered.

3. The quick-change machine tool driven wheel assembly according to claim 1, characterized in that: The external slide groove (42), the internal slide groove (43) and the receiving groove (47) are connected, and the position where the shaft column (41) connects with the extension seat (46) is chamfered.

4. A quick-change machine tool driven wheel assembly according to claim 1, characterized in that: The anti-rotation plug (3) is provided with a guide block on its outer side, and the guide block of the anti-rotation plug (3) is fixedly connected to the fixing plate (52).

5. A quick-change machine tool driven wheel assembly according to claim 1, characterized in that: The operating component (5) includes a sleeve (51), a fixing plate (52) is fixedly connected to the inner side of the sleeve (51), the sleeve (51) is sleeved on the outer side of the shaft (41), a gap is provided between the inner side of the sleeve (51) and the outer side of the shaft (41), and the fixing plate (52) is slidably connected to the inside of the external sliding groove (42).

6. A quick-change machine tool driven wheel assembly according to claim 5, characterized in that: The sleeve (51) has an annular groove (53) on its inner side. A limiting ring (54) is rotatably connected to the inner side of the annular groove (53). The limiting ring (54) and the operating cylinder (55) are an integral fixed structure. The operating cylinder (55) is sleeved on the outer side of the shaft column (41). The inner side of the operating cylinder (55) is in clearance fit with the outer side of the shaft column (41).

7. A quick-change machine tool driven wheel assembly according to claim 6, characterized in that: The operating cylinder (55) has a threaded hole (56) on its inner side, and the threaded hole (56) is screwed together with the spiral strip (45).

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