Turning and milling integrated processing machine tools

Abstract

The present invention discloses a turning and milling integrated machining center. A first mounting platform and a second mounting platform are mounted on a bed, distributed along the bed's height. The first mounting platform is provided with a turning spindle box and a turning tool holder. The spindle of the turning spindle box is provided with a clamping mechanism. The turning tool holder is assembled on the first mounting platform via a lower movable module, which can drive the turning tool holder to move along the length and width of the first mounting platform. The second mounting platform is provided with a milling spindle box via an upper movable module, which can drive the milling spindle box to move left and right, front and back, and up and down along the bed. The present invention has the beneficial effects of enabling turning and milling processes to be completed on the same machine tool, thereby reducing the number of part clamping times and improving machining accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a turning and milling integrated processing machine tool. Background Art

[0002] Lathes and milling machines are two types of machining equipment widely used in the machining industry. Lathes are primarily used for turning parts. The process involves clamping the part on the lathe spindle, which rotates it, and then the turning tool moves horizontally and vertically to complete the turning process. Milling machines are primarily used for milling parts. The process involves clamping the part on a fixture on a workbench, and then the milling tool rotates to complete the milling process.

[0003] In the actual manufacturing process, for most metal parts, turning and milling are often required to complete the processing of the parts. In the existing technology, for the processing of such parts, the parts must be switched between lathes and milling machines. Frequent clamping of parts will inevitably affect the final processing accuracy of the parts. Summary of the Invention

[0004] In view of this, the present invention provides a turning-milling integrated processing machine tool, which can complete turning and milling processing on the same machine tool, helps to reduce the number of parts clamping times and improve processing accuracy.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows:

[0006] A turning and milling integrated machining center comprises a bed, wherein the bed is provided with a first mounting platform and a second mounting platform distributed along the height direction thereof;

[0007] A turning spindle box and a turning tool holder are provided on the first mounting platform, a clamping mechanism is provided on the spindle of the turning spindle box, and the turning tool holder is assembled on the first mounting platform through a lower moving module, and the lower moving module can drive the turning tool holder to move along the length direction and width direction of the first mounting platform;

[0008] The second mounting platform is equipped with a milling spindle box via an upper movable die assembly, and the upper movable die assembly can drive the milling spindle box to move along the left and right, front and back, and up and down directions of the bed.

[0009] The above-mentioned machine tool can realize both turning and milling processing methods. Among them, the turning process is as follows: the part is clamped in the clamping mechanism, the turning spindle box drives the part to rotate, and the lower movable module drives the turning tool holder to feed movement to complete the turning process; the milling process is as follows: the part is clamped in the clamping mechanism, the spindle of the turning spindle box is self-locking, and the upper movable module drives the milling spindle box to move to complete the milling process.

[0010] Whether turning or milling, the parts are clamped on the clamping mechanism, which avoids the clamping errors caused by frequent clamping of parts and can improve the processing accuracy.

[0011] Preferably, a supporting tailstock is provided on the first mounting platform, and a rotary worktable is detachably assembled between the supporting tailstock and the spindle. With this design, a special milling fixture can also be installed on the rotary worktable, which helps to ensure better support strength during milling processing.

[0012] Preferably, the clamping mechanism is a three-jaw chuck, the upper end of the tailstock support is provided with a support hole coaxially aligned with the clamping center of the three-jaw chuck, and both ends of the rotary table are provided with positioning shafts, one of which is fixed to the three-jaw chuck and the other is rotatably supported in the support hole. This structure facilitates assembly of the rotary table.

[0013] Preferably, the three-jaw chuck includes a chuck base and three sets of jaws mounted on the end surface of the chuck base. The end of the rotary table proximate the three-jaw chuck is provided with three sets of positioning blocks, which are alternately distributed along the circumference of the positioning axis with the three sets of jaws. The positioning blocks are fixedly connected to the end surface of the chuck base. This structure ensures the stability of the fixed connection between the rotary table and the three-jaw chuck, thereby ensuring milling accuracy.

[0014] Preferably, the upper surface of the rotary table is provided with T-slots. The above structure is adopted to facilitate the installation of the milling fixture.

[0015] Preferably, the first mounting platform is provided with a guide rail extending along its length, and the tailstock is slidably mounted on the guide rail. With the above structure, when the rotary table is not in use, the tailstock can be easily removed, thereby facilitating milling processing.

[0016] Preferably, the first mounting platform is tilted relative to the machine bed, with the front end of the first mounting platform being lower than the rear end, and the toolholder and lower movable module are disposed at the rear end of the first mounting platform. With this configuration, the tilted first mounting platform can utilize the space at the rear end of the machine bed, making the machine tool structure more compact.

[0017] Preferably, the bed is provided with a mounting bevel and a vertical frame extending upward from the rear end of the mounting bevel, the vertical frame has a mounting plane on the top, and the first mounting platform and the second mounting platform are fixedly mounted on the mounting bevel and the mounting plane, respectively. The above structure facilitates assembly.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The machine tool can perform turning and milling. For parts that require both turning and milling, it avoids the clamping errors caused by frequent clamping, complies with the principle of process concentration, and can significantly improve machining accuracy.

[0020] 2. When the parts are clamped on the three-jaw chuck for milling, the rotation of the spindle of the turning spindle box can also play the role of indexing and rotation linkage processing, increase the number of working axes of the milling machine, and be suitable for milling more complex parts.

[0021] 3. The machine tool is equipped with a detachable rotary table, which provides better clamping strength for parts when used for milling.

[0022] 4. The integrated design of turning and milling can reduce the equipment procurement quantity and cost for small and medium-sized processing and manufacturing companies. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the structural diagram of the machine tool;

[0024] Figure 2 It is a structural diagram of a machine tool equipped with a rotary worktable;

[0025] Figure 3 A schematic diagram showing the exploded structure of the rotary table, the clamping mechanism, and the tailstock assembly connection;

[0026] Figure 4 It is a structural diagram of the rotary table;

[0027] Figure 5 is another structural schematic diagram of the machine tool; DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0029] like Figure 1 and 2 As shown, a turning and milling integrated processing machine tool has a structure including a bed 1, a first mounting platform 2 is mounted on the bed 1, a turning spindle box 4 and a turning tool holder 5 are provided on the first mounting platform 2, a main shaft 4a of the turning spindle box 4 is provided with a clamping mechanism 4b, a cutter disc 5b and a motor 5a for driving the cutter disc 5b to rotate are rotatably mounted on the turning tool holder 5, the turning tool holder 5 is mounted on the first mounting platform 2 through a lower moving module 6, and the lower moving module 6 can drive the turning tool holder 5 to move along the length and width directions of the first mounting platform 2.

[0030] The bed 1 is provided with a second mounting platform 3 above the first mounting platform 2. The second mounting platform 3 is equipped with a milling spindle box 8 through an upper movable module 7. The upper movable module 7 can drive the milling spindle box 8 to move along the left and right, front and back, and up and down directions of the bed 1.

[0031] For example Figure 1 As shown, in this embodiment, the clamping mechanism 4b is a three-jaw chuck. After the part is clamped on the three-jaw chuck, the turning spindle box 4 drives the part to rotate, and the lower movable module 6 drives the cutter head 5b of the turning tool holder 5 to feed and the turning process can be completed. After the part is clamped on the three-jaw chuck, if the spindle 4a of the turning spindle box 4 is self-locked, the upper movable module 7 drives the milling spindle box 8 to move and the milling process can be completed. For parts that require two processing methods, turning and milling, whether turning or milling, since the parts are clamped on the three-jaw chuck, the clamping error caused by frequent clamping of the parts is avoided, and the processing accuracy can be improved. At the same time, when the part is clamped on the three-jaw chuck for milling, if the spindle 4a of the turning spindle box 4 is rotated by a certain angle, it can also play the role of indexing and rotation linkage processing, increase the number of working axes of the milling machine, and can be suitable for parts with more complex milling processes.

[0032] In this embodiment, the lower moving module 6 includes a first linear guide assembly 6a and a second linear guide assembly 6b arranged vertically, and the upper moving module 7 includes a third linear guide assembly 7a, a fourth linear guide assembly 7b and a fifth linear guide assembly 7c. The third linear guide assembly 7a, the fourth linear guide assembly 7b and the fifth linear guide assembly 7c are perpendicular to each other in space, and the first linear guide assembly 6a, the second linear guide assembly 6b, the third linear guide assembly 7a, the fourth linear guide assembly 7b and the fifth linear guide assembly 7c are all driven by an independent screw nut mechanism.

[0033] For example Figure 2 As described above, a supporting tailstock 9 is provided on the first mounting platform 2, and a rotary table 10 is detachably mounted between the supporting tailstock 9 and the main shaft 4a. After the rotary table 10 is mounted between the supporting tailstock 9 and the main shaft 4a, a special milling fixture can be mounted on the rotary table 10, so that the machine tool becomes a special milling machine, which can better ensure the stability of the parts clamping and further improve the milling accuracy. For the convenience of installation, the first mounting platform 2 is provided with two groups of guide rails 2a extending along its length, and the supporting tailstock 9 is slidably mounted on the two groups of guide rails 2a. With this design, when the rotary table 10 is not in use, the supporting tailstock 9 can be removed to avoid interfering with the movement of other parts on the machine tool. The sliding of the supporting tailstock 9 on the guide rail 2a can also be controlled by a screw nut mechanism, and the self-locking effect of the screw nut mechanism can fix the supporting tailstock 9 in the use position.

[0034] For further information, see Figure 3and 4 The three-jaw chuck includes a base 4b1 and three groups of jaws 4b2 installed on the end face of the base 4b1. The upper end of the tailstock 9 is provided with a support hole 9a that is coaxial with the clamping center of the three-jaw chuck. Both ends of the rotary table 10 are provided with positioning shafts 10a. The end of the rotary table 10 close to the three-jaw chuck is provided with three groups of positioning blocks 10b. After the rotary table 10 is assembled on the machine tool, the positioning shaft 10a at the left end is fixed in the three groups of jaws 4b2, and the positioning shaft 10a at the right end is rotatably supported in the support hole 9a. The three groups of positioning blocks 10b are fixedly connected to the end face of the base 4b1 by bolts. The three groups of positioning blocks 10b and the three groups of jaws 4b2 are alternately distributed along the circumferential direction of the positioning shaft 10a. Such an assembly structure can not only ensure the stability of the assembly connection between the left end of the rotary table 10 and the clamping mechanism 4b, but also help to ensure the indexing accuracy of the spindle 4a during milling.

[0035] For example Figure 4 As shown, in order to facilitate the installation of the milling fixture on the rotary table 10 during milling processing, a T-slot 10 c is provided on the upper side surface of the rotary table 10 .

[0036] To facilitate overall assembly, a mounting bevel 1a is provided on the bed 1, and an upwardly extending vertical frame 1b is provided at the rear end of the mounting bevel 1a. The top of the vertical frame 1b has a mounting plane 1c, and the first mounting platform 2 and the second mounting platform 3 are fixedly mounted on the mounting bevel 1a and the mounting plane 1c, respectively. After the first mounting platform 2 is fixed on the mounting bevel 1a, the first mounting platform 2 is in a cleaning posture with the front low and the back high. Such a structural design can not only make the rotary worktable 10 closer to the milling spindle box 8 above it, but also make full use of the rear space of the bed 1 to stand up, making the machine tool structure more compact.

[0037] like Figure 5 As shown, when the machine tool is not equipped with a rotary table 10, a center 11 can be installed on the supporting tailstock 9 to facilitate the machine tool to clamp longer parts and improve the accuracy and stability of long axis parts processing.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. A turning and milling integrated machine tool, characterized by: The invention comprises a bed (1), wherein a first mounting platform (2) and a second mounting platform (3) are mounted on the bed (1) and are distributed along the height direction thereof; the bed (1) is provided with a mounting bevel (1a) and a stand (1b) extending upward from the rear end of the mounting bevel (1a); the stand (1b) has a mounting plane (1c) at the top; the first mounting platform (2) and the second mounting platform (3) are fixedly mounted on the mounting bevel (1a) and the mounting plane (1c), respectively; A turning spindle box (4) and a turning tool seat (5) are provided on the first mounting platform (2); a clamping mechanism (4b) is provided on the spindle (4a) of the turning spindle box (4); the turning tool seat (5) is mounted on the first mounting platform (2) via a lower movable module (6); the lower movable module (6) can drive the turning tool seat (5) to move along the length direction and width direction of the first mounting platform (2); a milling spindle box (8) is mounted on the second mounting platform (3) via an upper movable module (7); the upper movable module (7) can drive the milling spindle box (8) to move along the left-right, front-back and up-down directions of the bed (1); A supporting tailstock (9) is provided on the first mounting platform (2), and a rotating workbench (10) is detachably mounted between the supporting tailstock (9) and the spindle (4a). ） The rotary table (10) is used to install a milling fixture, the clamping mechanism (4b) is a three-jaw chuck, the upper end of the supporting tailstock (9) is provided with a supporting hole (9a) coaxially opposite to the clamping center of the three-jaw chuck, and both ends of the rotary table (10) are provided with positioning shafts (10a), one of which is fixed on the three-jaw chuck, and the other positioning shaft (10a) is rotatably supported in the supporting hole (9a), the three-jaw chuck includes a base (4b1) and three groups of jaws (4b2) installed on the end face of the base (4b1), and the rotary table (10) is provided with three groups of positioning blocks (10b) at one end close to the three-jaw chuck, the three groups of positioning blocks (10b) and the three groups of jaws (4b2) are alternately distributed in sequence along the circumferential direction of the positioning shaft (10a), and the positioning blocks (10b) are fixedly connected to the end face of the base (4b1); The first mounting platform (2) is tiltedly arranged on the bed (1), with the installation height of the front end being lower than the installation height of the rear end. The tool holder (5) and the lower movable module (6) are arranged at the rear end of the first mounting platform (2). The front end of the first mounting platform (2) is provided with two sets of guide rails (2a) extending along its length direction, and the tailstock (9) is supported and slidably assembled on the two sets of guide rails (2a).

2. The turning-milling integrated machine tool according to claim 1, characterized in that: T-shaped grooves (10c) are distributed on the upper surface of the rotary workbench (10).

3. The turning-milling integrated machine tool according to claim 1, characterized in that: A cutter disc (5b) is mounted on the tool holder (5) and is driven to rotate by a motor (5a).

4. The turning-milling integrated machine tool according to claim 1, characterized in that: The lower moving module (6) comprises a first linear guide rail assembly (6a) and a second linear guide rail assembly (6b) arranged vertically, and both the first linear guide rail assembly (6a) and the second linear guide rail assembly (6b) are driven to slide by a screw nut mechanism.

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