Multifunctional tool bit assembly of numerical control machine tool

Abstract

The utility model discloses a multifunctional tool bit assembly of a numerical control machine tool, which comprises a first tool bit and a second tool bit, the lower ends of the first tool bit and the second tool bit extend outwards from the inside of a shell, the upper ends of the first tool bit and the second tool bit are respectively arranged in a supporting block arranged in the shell through a tool rest, and a motor in transmission connection with any supporting block is arranged on the upper surface of the shell. A guide groove allowing the knife rest to be embedded is formed in the lower end face of a strip-shaped supporting block, a sliding rod is installed at the upper end of the knife rest movably embedded into the guide groove, and the two ends of the sliding rod extend outwards from strip-shaped sliding grooves formed in the two side surfaces of the supporting block respectively and are in sliding fit with the corresponding strip-shaped sliding grooves. A telescopic rod is installed on one side surface of the supporting block and located above the sliding rod, and the lower end of the telescopic rod is connected with one end of the sliding rod. According to the utility model, synchronous processing of two groups of small-size workpieces can be realized, processing of one group of large-size workpieces can be realized, and damage of the other tool bit to the workpieces can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to a multi-functional tool head assembly for CNC machine tools. Background Technology

[0002] CNC machine tools and turning centers are high-precision, high-efficiency automated machine tools with a wide range of machining capabilities. They can process complex workpieces such as straight cylinders, inclined cylinders, arcs, and various threads, grooves, and worm gears. They have various compensation functions, including linear interpolation and circular interpolation, and have demonstrated good economic benefits in the mass production of complex parts. However, existing CNC machine tools can only use one set of tools to process one workpiece at a time, resulting in low processing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a multi-functional tool head assembly for CNC machine tools. This multi-functional tool head assembly can simultaneously process two sets of small-sized workpieces using two tool heads, and can also process a set of large-sized workpieces using one tool head while avoiding damage to the workpieces from the other tool head.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-functional tool head assembly for a CNC machine tool, comprising: a housing, a first tool head, and a second tool head. The upper ends of the first tool head and the second tool head, which extend outward from the housing, are each mounted in a support block disposed within the housing via a tool holder. Each of the two support blocks rotatably mounted within the housing has a synchronous pulley mounted at one end. The two synchronous pulleys are connected by a synchronous belt drive. A motor that is drively connected to any one of the support blocks is mounted on the upper surface of the housing.

[0005] A guide groove for inserting a tool holder is provided on the lower end surface of the strip-shaped support block. A sliding rod is installed on the upper end of the tool holder, which is movably inserted into the guide groove. The two ends of the sliding rod extend outward from the strip-shaped grooves on the two side surfaces of the support block and slide in cooperation with the corresponding strip-shaped grooves. A telescopic rod is installed on one side surface of the support block and above the sliding rod. The lower end of the telescopic rod is connected to one end of the sliding rod.

[0006] The following are further improvements to the above technical solution:

[0007] 1. In the above scheme, the piston rod of the telescopic rod is connected to the sliding rod through a hinge.

[0008] 2. In the above scheme, the telescopic rod is a pneumatic telescopic rod or a hydraulic telescopic rod.

[0009] 3. In the above scheme, each of the support blocks is rotatably mounted on the inner wall of the housing via a bearing seat.

[0010] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0011] This utility model relates to a multi-functional tool head assembly for a CNC machine tool. The upper ends of the first and second tool heads, extending outwards from the housing, are each mounted on a support block within the housing via a tool holder. Two rotatably mounted support blocks each have a synchronous pulley at one end, connected by a synchronous belt. A motor, connected to either support block, is mounted on the upper surface of the housing. A guide groove for the tool holder is formed on the lower surface of the strip-shaped support block. A sliding rod is mounted on the upper end of the tool holder, which is movably embedded in the guide groove. Both ends of the sliding rod extend outwards from strip-shaped grooves on the two side surfaces of the support block and slide within the corresponding grooves. A telescopic rod is mounted on one side surface of the support block, above the sliding rod, with its lower end connected to one end of the sliding rod. This assembly allows for simultaneous processing of two sets of small workpieces using two tool heads, or processing of a set of large workpieces using one tool head while avoiding damage to the workpiece from the other tool head. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of the multi-functional tool head assembly of the CNC machine tool of this utility model;

[0013] Appendix Figure 2 This is a schematic diagram of the internal structure of the housing in the cutter head assembly of this utility model;

[0014] Appendix Figure 3 This is a partial exploded view of the multi-functional tool head assembly of the CNC machine tool of this utility model.

[0015] In the above attached figures: 1. Housing; 21. First cutter head; 22. Second cutter head; 3. Tool holder; 4. Support block; 51. Synchronous pulley; 52. Synchronous belt; 6. Motor; 71. Guide groove; 72. Sliding rod; 73. Strip groove; 8. Hydraulic rod; 9. Hinge. Detailed Implementation

[0016] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0017] Example 1: A multi-functional tool head assembly for a CNC machine tool includes: a housing 1, a first tool head 21 and a second tool head 22. The upper ends of the first tool head 21 and the second tool head 22, which extend outward from the housing 1, are each mounted in a support block 4 disposed in the housing 1 via a tool holder 3. Each of the two support blocks 4 rotatably mounted in the housing 1 has a synchronous pulley 51 mounted on one end. The two synchronous pulleys 51 are connected by a synchronous belt 52. A motor 6 is mounted on the upper surface of the housing 1 and is connected to any one of the support blocks 4.

[0018] A guide groove 71 for inserting a tool holder 3 is provided on the lower end surface of the strip-shaped support block 4. A sliding rod 72 is installed on the upper end of the tool holder 3, which is movably inserted into the guide groove 71. The two ends of the sliding rod 72 extend outward from the strip-shaped sliding grooves 73 on the two side surfaces of the support block 4 and slide in cooperation with the corresponding strip-shaped sliding grooves 73. A telescopic rod 8 is installed on one side surface of the support block 4 and above the sliding rod 72. The lower end of the telescopic rod 8 is connected to one end of the sliding rod 72.

[0019] When machining a single part, the first cutting head extends out of the housing via a hydraulic rod and begins machining under the drive of a motor.

[0020] The piston rod of the aforementioned telescopic rod 8 is connected to the sliding rod 72 via a hinge 9; the aforementioned telescopic rod 8 is a pneumatic telescopic rod.

[0021] Example 2: A multi-functional tool head assembly for a CNC machine tool includes: a housing 1, a first tool head 21 and a second tool head 22. The upper ends of the first tool head 21 and the second tool head 22, which extend outward from the housing 1, are each mounted in a support block 4 disposed in the housing 1 via a tool holder 3. Each of the two support blocks 4 rotatably mounted in the housing 1 has a synchronous pulley 51 mounted on one end. The two synchronous pulleys 51 are connected by a synchronous belt 52. A motor 6, which is connected to any one of the support blocks 4, is mounted on the upper surface of the housing 1.

[0022] A guide groove 71 for inserting a tool holder 3 is provided on the lower end surface of the strip-shaped support block 4. A sliding rod 72 is installed on the upper end of the tool holder 3, which is movably inserted into the guide groove 71. The two ends of the sliding rod 72 extend outward from the strip-shaped sliding grooves 73 on the two side surfaces of the support block 4 and slide in cooperation with the corresponding strip-shaped sliding grooves 73. A telescopic rod 8 is installed on one side surface of the support block 4 and above the sliding rod 72. The lower end of the telescopic rod 8 is connected to one end of the sliding rod 72.

[0023] When processing two parts simultaneously, the second cutting head extends through a hydraulic rod, and the rotation of the motor is transmitted to the timing pulley on the second cutting head via a timing belt, enabling the simultaneous processing of the two parts.

[0024] The aforementioned telescopic rod 8 is a hydraulic telescopic rod; each of the aforementioned support blocks 4 is rotatably mounted on the inner wall of the housing 1 via a bearing seat.

[0025] When it is necessary to process small workpieces, two identical workpieces to be processed are clamped and fixed by a clamping mechanism.

[0026] Correspondingly, the first cutting head 21 and the second cutting head 22 are kept in the state of extending out of the housing 1 under the drive of the corresponding hydraulic rod 8. Then, through the cooperation of the motor 6 with the synchronous pulley 51 and the synchronous belt 52, the first cutting head 21 and the second cutting head 22 are synchronously driven to rotate and process the two clamped and fixed workpieces at the same time.

[0027] When it is necessary to process a large workpiece, a clamping mechanism is used to clamp and fix one workpiece to be processed.

[0028] Correspondingly, the first cutting head 21 is kept in the state of extending outward from the housing 1 under the drive of the corresponding hydraulic rod 8, and the second cutting head 22 is retracted into the housing 1 under the drive of the corresponding hydraulic rod 8. Then, the first cutting head 21 is driven by the motor 6 to rotate and process the large-sized workpiece that is clamped and fixed. This can achieve simultaneous processing of two sets of small-sized workpieces with two cutting heads, or process a set of large-sized workpieces with one cutting head while avoiding damage to the workpiece by the other cutting head.

[0029] When using the multi-functional tool head assembly of the above-mentioned CNC machine tool, it can simultaneously process two sets of small-sized workpieces with two tool heads, and process a set of large-sized workpieces with one tool head while avoiding damage to the workpiece by the other tool head.

[0030] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-functional tool head assembly for a numerically controlled machine tool, characterised in that: It includes a shell (1), a first cutter head (21) and a second cutter head (22), the lower end of the first cutter head (21) and the second cutter head (22) extends outward from the shell (1), the upper end of each of the first cutter head (21) and the second cutter head (22) is installed in a support block (4) arranged in the shell (1) through a cutter holder (3), one end of each of the two rotatable support blocks (4) installed in the shell (1) is installed with a synchronous pulley (51), the two synchronous pulleys (51) are transmission connected through a synchronous belt (52), the upper surface of the shell (1) is installed with a motor (6) transmission connected with any one support block (4); The lower end surface of the strip-shaped support block (4) is provided with a guide groove (71) for embedding the cutter holder (3), the upper end of the cutter holder (3) movably embedded in the guide groove (71) is installed with a sliding rod (72), the two ends of the sliding rod (72) respectively extend outward from the strip-shaped sliding grooves (73) provided on the two side surfaces of the support block (4) and are in sliding fit with the corresponding strip-shaped sliding grooves (73), one side surface of the support block (4) and above the sliding rod (72) is installed with an extension rod (8), the lower end of the extension rod (8) is connected with one end of the sliding rod (72).

2. The multi-functional tool head assembly of claim 1, wherein: The piston rod of the extension rod (8) is connected with the sliding rod (72) through a hinge (9).

3. The multi-functional tool head assembly of claim 1, wherein: The extension rod (8) is a pneumatic extension rod or a hydraulic extension rod.

4. The multi-functional tool head assembly of claim 1, wherein: Each of the support blocks (4) is rotatably installed on the inner wall of the shell (1) through a bearing seat.

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