A turning and milling compound machining center

Abstract

The present invention discloses a turning and milling compound machining center, comprising a frame, a three-axis motion mechanism, a tool head assembly, a first turning spindle, a left-right motion mechanism, a turntable assembly, a first sub-spindle and a vise; the three-axis motion mechanism is arranged on the frame; the tool head assembly is arranged on the three-axis motion mechanism, and the tool head assembly is used for clamping a tool; the first turning spindle is arranged on the frame, and the rotation axis of the first turning spindle extends in the left-right direction; the left-right motion mechanism is arranged on the frame; the turntable assembly is arranged on the right side of the first turning spindle, the turntable assembly is arranged on the left-right motion mechanism, the rotation axis of the turntable assembly extends in the front-back direction, and the left-right motion mechanism reciprocates along the turntable assembly in the left-right direction; the first sub-spindle is on the turntable assembly, the rotation axis of the first sub-spindle is perpendicular to the turntable assembly, and the rotation axis of the first sub-spindle and the rotation axis of the first turning spindle are arranged in the same vertical plane; the vise is arranged on the rotation assembly.

Description

Technical Field

[0001] The present invention relates to the field of mechanical processing, in particular to a turning and milling compound processing center. Background Art

[0002] Currently, when machining rod-shaped workpieces, after machining one end of the rod, the other end needs to be machined. This requires removing the workpiece from the machine tool and re-clamping it. This method requires manual reorientation of the rod-shaped workpiece. Furthermore, rod-shaped workpieces are typically machined on a lathe, which can turn the sides of the rod, but is inconvenient for machining the end faces. Furthermore, if the workpiece itself has a specific shape or the rod is machined into a specific shape, it can become difficult for the lathe spindle to clamp the end of the workpiece. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to solve at least one of the technical problems mentioned above, so as to provide a turning-milling compound machining center that can clamp and process workpieces of various shapes.

[0004] The solution of the present invention to solve its technical problems is:

[0005] A turning and milling compound machining center comprises a frame, a three-axis motion mechanism, a tool head assembly, a first turning spindle, a left-right motion mechanism, a turntable assembly, a first sub-spindle and a vise; the three-axis motion mechanism is arranged on the frame; the tool head assembly is arranged on the three-axis motion mechanism, and the three-axis motion mechanism drives the tool head assembly to move in the up-down, left-right, and front-back directions, and the tool head assembly is used to clamp the tool; the first turning spindle is arranged on the frame, and the first turning spindle is used to clamp one end of a rod-shaped workpiece and drive the rod-shaped workpiece to rotate, and the rotation axis of the first turning spindle extends in the left-right direction; the left-right motion mechanism is arranged on the frame ; The turntable assembly is arranged on the right side of the first main spindle, and the turntable assembly is arranged on the left and right motion mechanism. The rotation axis of the turntable assembly extends in the front-to-back direction, and the left and right motion mechanism reciprocates in the left and right directions along the turntable assembly; the first sub-spindle is on the turntable assembly, and the rotation axis of the first sub-spindle is perpendicular to the turntable assembly. The rotation axis of the first sub-spindle and the rotation axis of the first main spindle are arranged in the same vertical plane; the vise is arranged on the rotating assembly, and a clamping space is provided on the vise. The vise can adjust the width of the clamping space along the front-to-back direction, and the clamping space is used to clamp the workpiece.

[0006] As a further improvement of the above technical solution, the turning-milling compound machining center also includes a tool magazine assembly, which is used to store cutting tools and is also used to replace cutting tools on the tool head assembly.

[0007] As a further improvement of the above technical solution, the tool magazine assembly includes a rotating device, a first turntable, a second turntable, a transition tool grabbing mechanism and a tool changing device. The rotating device is arranged on the frame, the first turntable is arranged on the rotating device, and the rotating device drives the first turntable to rotate. The first turntable is used to store a plurality of tools, and the second turntable is used to store a plurality of tools. The second turntable is arranged below the first turntable, and the rotating device drives the second turntable to rotate. The transition tool grabbing mechanism is arranged on the frame, and the tool changing device is arranged on the frame. The transition tool grabbing mechanism is used to grab the tools on the first turntable or the second turntable, and the tool changing device is used to grab the tools on the transition tool grabbing mechanism and the tools on the tool head assembly.

[0008] As a further improvement of the above technical solution, the cutter head assembly includes a B-axis and a milling spindle, the B-axis is arranged on the three-axis motion mechanism, the milling spindle is arranged on the B-axis, the B-axis extends in the front-back direction, the B-axis drives the milling spindle to rotate, and the rotation axis of the milling spindle is perpendicular to the B-axis.

[0009] As a further improvement of the above technical solution, the B-axis includes a mounting sleeve, which extends in the front-to-back direction, and the mounting sleeve is arranged on the three-axis motion mechanism. A mounting channel is formed in the mounting sleeve, and the B-axis also includes a reduction motor, a transmission shaft and a milling spindle; the reduction motor is inserted into the mounting channel, and the reduction motor is fixedly connected to the mounting sleeve; the transmission shaft is fixedly connected to the output end of the reduction motor, and the reduction motor drives the transmission shaft to rotate, and the transmission shaft is connected to the inner wall of the mounting channel through a sixth bearing; the transmission shaft extends in the front-to-back direction, and the transmission shaft is fixedly connected to the milling spindle, and the rotation axis of the milling spindle is perpendicular to the axis of the transmission shaft.

[0010] As a further improvement of the above technical solution, the first lathe spindle includes a second spindle, a rotating device, and a pushing device. The second spindle is arranged on the frame. A loading channel is opened on the second spindle. The loading channel extends in the left and right directions. The left end of the loading channel is used to insert the workpiece, and the workpiece extends from the right end of the loading channel. The second spindle is used to clamp the workpiece. The rotating device is arranged on the frame. The rotating device drives the second spindle to rotate. The rotation axis of the second spindle extends in the left and right directions. The pushing device is arranged on the frame. The pushing device is used to push the workpiece from left to right.

[0011] As a further improvement of the above technical solution, the second spindle includes a second support, a second shaft, a chuck and a driving member, the second support is fixed on the frame, the second shaft is arranged on the second support, the second shaft extends in the left and right directions, the second shaft extends in the left and right directions, the loading channel extending in the left and right directions is opened in the second shaft, the chuck is fixed on the second shaft, the driving member is arranged on the frame or the second support, and the driving member drives the chuck to loosen or tighten, so that the chuck loosens or clamps the workpiece in the loading channel.

[0012] As a further improvement of the above technical solution, the first sub-spindle includes a spindle base, a drive unit and a clamping mechanism, the drive unit is arranged on the turntable assembly or the spindle base, the spindle base is fixed on the turntable assembly, the clamping mechanism is arranged on the spindle base, the clamping mechanism and the spindle base can rotate relative to each other, the drive unit drives the clamping mechanism to rotate, the clamping port is arranged on the clamping mechanism, and the depth direction of the clamping port is in the same vertical plane as the axis of the first lathe spindle.

[0013] As a further improvement of the above technical solution, the first sub-spindle also includes a rebound mechanism, which is arranged on the clamping mechanism and in the clamping port. When the first sub-spindle releases the workpiece, the rebound mechanism is used to eject the workpiece in the clamping port, so that the workpiece is detached from the first sub-spindle.

[0014] As a further improvement of the above technical solution, the rebound mechanism includes a rebound spring, a spring mounting block and a push rod, the spring mounting block is arranged on the first sub-spindle, the spring mounting block is arranged on the inner side of the clamping port, the spring mounting block is provided with a recess, the recess is arranged toward the clamping port, the bottom of the recess is provided with a guide hole, the push rod is inserted into the guide hole, the push rod and the guide hole can be relatively slidably matched and connected, the inner bottom surface of the recess forms a first limiting flange, the push rod is provided with a second limiting flange, the rebound spring is sleeved on the push rod, and the rebound spring is arranged between the first limiting flange and the second limiting flange.

[0015] The beneficial effect of the present invention is that when in use, a rod-shaped workpiece can be clamped on the first turning spindle first. For example, the left end of the workpiece is first inserted into the first turning spindle, and the workpiece is driven to rotate left and right by the first turning spindle, and the cutter head assembly is driven by the three-axis motion mechanism to move, so that the tool on the cutter head assembly processes the workpiece on the first turning spindle. After the right end of the workpiece on the first turning spindle is processed, the turntable assembly can drive the first sub-spindle to swing to face the first turning spindle, and the turntable assembly is driven to the left by the left and right motion mechanism, so that the first sub-spindle is close to the first turning spindle, and the right end of the workpiece is clamped by the first sub-spindle, and the first turning spindle releases the left end of the workpiece. The left and right motion mechanism drives the first sub-spindle to reset, and then the three-axis motion mechanism drives the tool on the cutter head assembly to process the workpiece on the first sub-spindle; when the workpiece is not a rod-shaped workpiece and causes inconvenience in clamping, the user can rotate the turntable assembly so that the vise can be rotated to an appropriate angle and then the workpiece is clamped by the vise. The present invention can flexibly clamp and process the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described only illustrate some embodiments of the present invention, not all of them. Those skilled in the art can derive other design solutions and drawings based on these drawings without inventive effort.

[0017] Figure 1 The tool magazine assembly of the present invention is axonometric Figure 1 ;

[0018] Figure 2 The tool magazine assembly of the present invention is axonometric Figure 2 ;

[0019] Figure 3 It is an axonometric view of the transition knife-grabbing mechanism, the first rotating disk, the second rotating disk and the rotating device of the present invention;

[0020] Figure 4 It is a front view of the B-axis of the present invention;

[0021] Figure 5 The present invention Figure 4 Cross-sectional view at AA in FIG;

[0022] Figure 6 The present invention Figure 5 Axonometric drawing of

[0023] Figure 7 It is a right side view of the first vehicle main shaft and the rotating device of the present invention;

[0024] Figure 8 It is a front view of the first vehicle main shaft and the rotating device of the present invention;

[0025] Figure 9 The present invention Figure 7 Cross-sectional view at BB in FIG;

[0026] Figure 10 The present invention Figure 9 Axonometric drawing of

[0027] Figure 11 The present invention Figure 10 An enlarged view of I in FIG;

[0028] Figure 12 It is an axonometric view of the frame, the first spindle, the rotating device, the B-axis and the three-axis motion mechanism of the present invention;

[0029] Figure 13 The axonometric view of the turntable of the present invention Figure 1 ;

[0030] Figure 14 The axonometric view of the turntable of the present invention Figure 2 ;

[0031] Figure 15 It is a left side view of the turntable of the present invention;

[0032] Figure 16 The present invention Figure 15 Cross-sectional view at CC in FIG;

[0033] Figure 17 The present invention Figure 16 Axonometric drawing of

[0034] Figure 18 This is a front view of the conveyor belt, material receiving mechanism and turntable of the present invention;

[0035] Figure 19 The present invention Figure 18 Schematic cross-sectional view at DD;

[0036] Figure 20 The present invention Figure 18 Left view of;

[0037] Figure 21 The present invention Figure 20 Schematic cross-sectional view at EE;

[0038] Figure 22 is a front view of the rebound mechanism of the present invention;

[0039] Figure 23 The present invention Figure 22 Axonometric section view at FF in the figure;

[0040] Figure 24It is an axonometric drawing of the present invention.

[0041] In the accompanying drawings: a2-rotating device, a21-first motor, a22-first rotating shaft, a23-tool magazine baffle, a3-first turntable, a31-first disc, a32-first tool holder, a4-second turntable, a41-second disc, a42-second tool holder, a5-transition tool grabbing mechanism, a51-vertical motion mechanism, a511-rodless cylinder, a512-upper and lower guide rails, a513-upper and lower sliders, a514-upper and lower slides, a52-lifting mechanism, a521-lifting plate, a522-lifting cylinder, a523-tool grabbing guide rail, a524-guide block, a53-lateral motion mechanism, a531-left and right traverse cylinder, a532-left and right slide rails, a533-left and right sliders, a534-mounting plate, a54 -Gripping tool sleeve, a6-tool changing device, a61-second motor, a62-tool changing arm, b1-mounting sleeve, b11-pressure ring, b12-mounting step, b2-reduction motor, b3-drive shaft, b31-locking ring, b4-milling spindle, b5-protective sleeve, b51-extension, b61-reading head, b62-scale drum, b7-cover, b8-sixth bearing, c1-frame, c2-three-axis motion mechanism, c21-left and right motion unit, c22-forward and backward motion unit, c23-up and down motion unit, c3-tool, c4-second spindle, c41-second support, c411-pipe clamp, c42-second axis, c43-chuck, c431-first sleeve, c4311-first slide, c4312-latch, c43 2-second sleeve, c4321-second through hole, c4322-bushing, c4323-second clamping block, c433-second spring, c44-driving member, c441-third sleeve, c442-rotating cylinder, c5-rotating device, c52-synchronous belt, c53-pulley, c6-pushing device, c61-supporting pipe, c62-second pushing cylinder, c71-abutment block, c72-sensor, d1-turntable body, d2-mounting box, d3-first spindle, d31-spindle base, d32-clamping mechanism, d321-first shaft, d322-pushing assembly, d3221-first pushing cylinder, d3222-first bearing, d3223-mounting frame, d3224-sleeve, d3225-clamping block, d3226-lever, d323-first spring, d324-third sleeve, d3241-third slide, d3242-third slider, d325-fourth sleeve, d3251-first through hole, d326-first clamping block, d4-bench vise, d41-first base, d42-second base, d43-first pressure block, d44-second pressure block, d45-first hydraulic cylinder, d46-second hydraulic cylinder, e1-rebound mechanism, e11-rebound spring, e12-elastic material mounting block, e121-first limiting flange, e122-recess, e1220-guide hole, e13-elevator, e131-second limiting flange, e14-tension sleeve, e15-tapered sleeve,e16-nut, e17-limit baffle, e4-material receiving mechanism, f41-first recovery pipe, f42-second recovery pipe, f43-first cylinder, f44-second cylinder, f45-sealing cover, f5-conveyor belt. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interactively without conflicting with each other.

[0043] Reference Figures 1 to 24 A turning and milling composite machining center includes a frame c1, a three-axis motion mechanism c2, a tool head assembly, a first turning spindle, a left-right motion mechanism, a turntable assembly, a first sub-spindle and a vise d4; the three-axis motion mechanism c2 is arranged on the frame c1; the tool head assembly is arranged on the three-axis motion mechanism c2, and the three-axis motion mechanism c2 drives the tool head assembly to move in the up-down, left-right, and front-back directions, and the tool head assembly is used to clamp the tool c3; the first turning spindle is arranged on the frame c1, the first turning spindle is used to clamp one end of a rod-shaped workpiece and drive the rod-shaped workpiece to rotate, and the rotation axis of the first turning spindle extends in the left-right direction; the left-right motion mechanism is arranged On the frame c1; the turntable assembly is arranged on the right side of the first main spindle, the turntable assembly is arranged on the left and right movement mechanism, the rotation axis of the turntable assembly extends in the front and rear directions, and the left and right movement mechanism reciprocates along the left and right directions along the turntable assembly; the first sub-spindle is on the turntable assembly, the rotation axis of the first sub-spindle is perpendicular to the turntable assembly, and the rotation axis of the first sub-spindle and the rotation axis of the first main spindle are arranged in the same vertical plane; the vise d4 is arranged on the rotating assembly, and a clamping space is provided on the vise d4, and the vise d4 can adjust the width of the clamping space along the front and rear directions, and the clamping space is used to clamp the workpiece.

[0044] From the above, it can be seen that when in use, the rod-shaped workpiece can be first clamped on the first main spindle. For example, the left end of the workpiece is first inserted into the first main spindle, and the workpiece is driven to rotate left and right by the first main spindle. The three-axis motion mechanism C2 drives the cutter head assembly to move, so that the tool C3 on the cutter head assembly processes the workpiece on the first main spindle. After the right end of the workpiece on the first main spindle is processed, the turntable assembly can drive the first sub-spindle to swing to face the first main spindle, and the turntable assembly is driven to move to the left by the left and right motion mechanism. The first sub-spindle is brought close to the first turning spindle, and the right end of the workpiece is clamped by the first sub-spindle. The first turning spindle releases the left end of the workpiece, and the left-right motion mechanism drives the first sub-spindle to reset. Then the three-axis motion mechanism C2 drives the tool C3 on the tool head assembly to process the workpiece on the first sub-spindle. When the workpiece is not a rod-shaped workpiece and it is inconvenient to clamp it, the user can rotate the turntable assembly so that the vise D4 can be rotated to an appropriate angle and then the workpiece can be clamped by the vise D4. The present invention can flexibly clamp and process the workpiece.

[0045] To enable the present invention to be used for machining a variety of workpiece types and provide greater flexibility, in some embodiments, the mill-turn machining center further includes a tool magazine assembly for storing cutting tools C3 and for replacing cutting tools C3 on the cutter head assembly. In actual use, the tool magazine assembly can store cutting tools C3 of various types and specifications to meet the machining needs of different workpieces.

[0046] The tool magazine assembly is used to store the tool c3 and the tool c3 on the tool head assembly. In some embodiments, the tool magazine assembly includes a rotating device a2, a first turntable a3, a second turntable a4, a transition tool grabbing mechanism a5 and a tool changing device a6. The rotating device a2 is arranged on the frame c1, the first turntable a3 is arranged on the rotating device a2, the rotating device a2 drives the first turntable a3 to rotate, the first turntable a3 is used to store a plurality of tools c3, the second turntable a4 is used to store a plurality of tools c3, the second turntable a4 is arranged below the first turntable a3, and the rotating device a2 drives the second turntable a4 to rotate, the transition tool grabbing mechanism a5 is arranged on the frame c1, the tool changing device a6 is arranged on the frame c1, the transition tool grabbing mechanism a5 is used to grab the tool c3 on the first turntable a3 or the second turntable a4, and the tool changing device a6 is used to grab the tool c3 on the transition tool grabbing mechanism a5 and the tool c3 on the tool head assembly. The first turntable a3 and the second turntable a4 are used to store the cutting tools c3 respectively. When in use, the user can make the rotating device a2 drive the first turntable a3 and the second turntable a4 to rotate according to the actual demand for the cutting tools c3 used, so as to adjust the cutting tools c3 on the first turntable a3 and the second turntable a4 toward the transition tool grabbing mechanism a5. The transition tool grabbing mechanism a5 is used to first grab the cutting tools c3 on the first turntable a3 or the second turntable a4, and move them to the working area of the tool changing device a6. The tool changing device a6 is used to change the cutting tools c3 on the transition tool grabbing mechanism a5 and the cutting tools c3 on the tool head assembly, so that the cutting tools c3 on the tool head assembly and the cutting tools c3 on the transition tool grabbing mechanism a5 are exchanged.

[0047] Optionally, the first turntable a3 and the second turntable a4 have the same structure, thereby facilitating the production and processing of the first turntable a3 and the second turntable a4.

[0048] In actual use, the transition tool grabbing mechanism a5 only grabs one tool c3 on the first turntable a3 or the second turntable a4 at a time, and then the tool changing device a6 exchanges the tool c3 grabbed by the transition tool grabbing mechanism a5 with the tool c3 on the tool head assembly.

[0049] The rotating device a2 is used to drive the first turntable a3 and the second turntable a4 to rotate so as to adjust the relative position of the tool c3 on the first turntable a3 and the second turntable a4 and the transition tool grabbing mechanism a5. In some embodiments, the rotating device a2 includes a first motor a21 and a first rotating shaft a22, the first rotating shaft a22 extending vertically, the fixing portion of the first motor a21 being fixed to the frame c1, the first rotating shaft a22 being disposed on the frame c1, the first rotating shaft a22 being rotatable relative to the frame c1, the first turntable a3 and the second turntable a4 being respectively disposed on the first rotating shaft a22, the first turntable a3 being coaxially connected to the first rotating shaft a22, the second turntable a4 being coaxially connected to the first rotating shaft a22, and the first motor a21 driving the first rotating shaft a22 to rotate. The first rotating disk a3 and the second rotating disk a4 are respectively fixed on the first rotating shaft a22. The first rotating shaft a22 and the frame c1 can rotate relative to each other. The first rotating shaft a22 is driven to rotate by the first motor a21, thereby realizing the rotation of the first rotating disk a3 and the second rotating disk a4.

[0050] Preferably, the first motor a21 is a servo motor, so that the user can easily adjust the angle of a single rotation of the motor shaft of the first motor a21.

[0051] In addition, a tool magazine baffle a23 is provided between the first turntable a3 and the second turntable a4. This baffle a23 is used to separate the first turntable a3 and the second turntable a4. Because the first turntable a3 is positioned above the second turntable a4, it effectively prevents a tool c3 that accidentally falls from the first turntable a3 from hitting a tool c3 on the second turntable a4, potentially damaging the tool c3.

[0052] The first turntable a3 is used to store cutting tools c3. In order to store multiple cutting tools c3 on the first turntable a3, in some embodiments, the first turntable a3 includes a first circular disk a31 and a plurality of first tool holders a32 disposed on the first circular disk a31, with the openings of the first tool holders a32 facing away from the axis of the first circular disk a31. Preferably, the openings of the first tool holders a32 are disposed along the radial direction of the first circular disk a31, with the openings of the first tool holders a32 facing away from the axis of the first circular disk a31, so that the cutting tools c3 can be inserted into or detached from the first tool holder a32 along the radial direction of the first tool holder a32. The cutting tools c3 clamped in the first tool holder a32 on the first circular disk a31 extend in the vertical direction, such that the handle of the cutting tools c3 is at the top and the processing head of the cutting tools c3 is at the bottom.

[0053] The second turntable a4 is used to store cutting tools c3. In some embodiments, the second turntable a4 includes a second circular disk a41 and a plurality of second tool holders a42 disposed on the second circular disk a41. The openings of the second tool holders a42 face away from the axis of the second circular disk a41. Preferably, the openings of the second tool holders a42 are arranged radially along the second circular disk a41, facing away from the axis of the second circular disk a41, to facilitate insertion and removal of cutting tools c3 from the second tool holders a42 along the radial direction of the second tool holders a42. Cutting tools c3 clamped in the second tool holders a42 on the second circular disk a41 extend vertically, with the tool shank of the cutting tools c3 at the top and the machining head of the cutting tools c3 at the bottom.

[0054] During use, in order to facilitate production and installation, the first disc a31 and the second disc a41 have the same size, and the axes of the first disc a31 and the second disc a41 are collinear.

[0055] The transition tool grabbing mechanism a5 is used to grab the tool c3 on the first turntable a3 or the second turntable a4. In some embodiments, the transition tool grabbing mechanism a5 includes a vertical movement mechanism a51, a lifting mechanism a52, a transverse movement mechanism a53 and a tool grabbing sleeve a54. The vertical movement mechanism a51 is arranged on the frame c1, and the lifting mechanism a52 is arranged on the vertical movement mechanism a51. The vertical movement mechanism a51 drives the lifting mechanism a52 to reciprocate in the vertical direction. The transverse movement mechanism a53 is arranged on the lifting mechanism a52. The transverse movement mechanism a53 is arranged on the lifting mechanism a52. The lifting mechanism a52 drives the transverse movement mechanism a53 to move in the up and down directions. The tool grabbing sleeve a54 is arranged on the transverse movement mechanism a53. The transverse movement mechanism a53 drives the tool grabbing sleeve a54 to reciprocate in the left and right directions. The tool grabbing sleeve a54 is used to grab the tool c3.

[0056] After it is determined to use the tool c3 on the first turntable a3 or the second turntable a4, for example, taking the grabbing of the tool c3 on the first turntable a3 as an example, the vertical movement mechanism a51 drives the lifting mechanism a52 to move upward, so that the transverse movement mechanism a53 on the lifting mechanism a52 and the tool grabbing sleeve a54 on the transverse movement mechanism a53 also move upward with the vertical movement mechanism a51, so that the tool c3 on the first turntable a3 is located at a height that can be grabbed by the tool grabbing sleeve a54. When the tool grabbing sleeve a54 needs to grab the tool c3, the transverse movement mechanism a53 drives the tool grabbing sleeve a54 to move transversely to just above the tool c3 to be grabbed. The opening of the tool grabbing sleeve a54 is set downward, and the tool grabbing sleeve a54 is used to grab the top of the tool c3, that is, the tool grabbing sleeve a54 is used to cover the top of the tool handle of the tool c3. The lifting mechanism a52 drives the transverse movement mechanism a53 to move downward, so that the tool grabbing sleeve a54 set on the transverse movement mechanism a53 moves downward together, and then, the tool grabbing sleeve a54 is covered on the top of the tool handle at the top of the tool c3. Then, the transverse movement mechanism a53 drives the tool grabbing sleeve a54 to move away from the first turntable a3, so that the tool grabbing sleeve a54 pulls out the tool c3 clamped in the first tool clamp a32, and finally the tool changing device a6 grabs the tool c3 on the tool grabbing sleeve a54.

[0057] In actual use, the tool gripper device can be positioned at a fixed position in space. After the tool gripper sleeve a54 has finished gripping the tool, the vertical motion mechanism a51 can move the tool gripper sleeve a54 vertically to a designated position, allowing the tool changer a6 to grasp the tool c3 on the tool gripper sleeve a54. Preferably, the tool gripper device and the second rotary disc a4 are located at approximately the same height to facilitate grasping of the tool c3.

[0058] The vertical motion mechanism a51 is used to drive the lifting mechanism a52 to reciprocate in the up and down directions. In some embodiments, the vertical motion mechanism a51 includes a rodless cylinder a511, upper and lower guide rails a512, upper and lower sliders a513 and upper and lower slides a514. The lifting mechanism a52 is arranged on the upper and lower slides a514, the rodless cylinder a511 is arranged on the frame c1, the upper and lower guide rails a512 are arranged on the frame c1, the upper and lower slides a514 are arranged on the driving part of the rodless cylinder a511, the upper and lower guide rails a512 extend in the up and down directions, the upper and lower sliders a513 are fixed on the upper and lower slides a514, the upper and lower sliders a513 are arranged on the upper and lower guide rails a512, the upper and lower guide rails a512 and the upper and lower sliders a513 can slide relative to each other, and the rodless cylinder a511 drives the upper and lower slides a514 to slide reciprocally in the up and down directions. When in use, the upper and lower sliders a513 are fixed on the upper and lower slides a514, and the upper and lower sliders a513 are slidingly connected with the upper and lower guide rails a512, so that the upper and lower slides a514 move along the extension direction of the upper and lower guide rails a512 under the drive of the rodless cylinder a511.

[0059] In actual use, the rodless cylinder a511 and the upper and lower guide rails a512 extend vertically respectively.

[0060] The lifting mechanism a52 is used to drive the lateral motion mechanism a53 to move up and down, so that the grabbing sleeve a54 on the lateral motion mechanism a53 moves up and down, so that the grabbing sleeve a54 can pick up the top of the handle on the tool c3. In some embodiments, the lifting mechanism a52 includes a lifting plate a521, a lifting cylinder a522, a grabbing guide rail a523 and a guide block a524, the lifting cylinder a522 is installed on the movable part of the vertical motion mechanism a51, the guide block a524 is installed on the movable part of the vertical motion mechanism a51, the grabbing guide rail a523 is fixed to the lifting plate a521, the grabbing guide rail a523 and the guide block a524 can be relatively slidably matched together in the up and down directions, the lifting cylinder a522 drives the lifting plate a521 to reciprocate in the up and down directions, and the lateral motion mechanism a53 is arranged on the lifting plate a521. The structure is simple and easy to set up. When the lifting cylinder a522 drives the lifting plate a521 to move up and down, the guide block a524 and the knife grabbing guide rail a523 slide relative to each other to ensure that the lifting plate a521 moves in the up and down directions.

[0061] When in use, the lifting cylinder a522 and the guide block a524 are respectively fixed on the upper and lower slides a514 in the vertical motion mechanism a51, and the upper and lower slides a514 are arranged vertically.

[0062] The lateral motion mechanism a53 is used to drive the grabbing knife sleeve a54 to move along the left and right directions. In some embodiments, the lateral motion mechanism a53 includes left and right lateral cylinders a531, left and right slide rails a532, left and right sliders a533 and a mounting plate a534. The left and right lateral cylinders a531 are arranged on the movable part of the lifting mechanism a52, and the left and right slide rails a532 are arranged on the movable part of the lifting mechanism a52. The left and right slide rails a532 extend along the left and right directions, and the left and right sliders a533 are arranged on the left and right slide rails a532. The left and right sliders a533 and the left and right slide rails a532 can slide relative to each other, and the left and right sliders a533 are fixed on the mounting plate a534. The grabbing knife sleeve a54 is fixed on the mounting plate a534. The left and right lateral cylinders a531 drive the grabbing knife sleeve a54 to reciprocate along the left and right directions. When in use, the left and right transverse cylinders a531 drive the mounting plate a534 to slide along the left and right directions. During the left and right sliding process of the mounting plate a534, the left and right slide rails a532 and the left and right sliders a533 are connected in a relatively sliding manner to ensure that the mounting plate a534 slides along the left and right directions.

[0063] In actual use, the left and right slide rails a532 are set on the lifting plate a521, and the left and right transverse cylinders a531 are set on the lifting plate a521.

[0064] The tool changing device a6 can be used to exchange the tool c3 on the cutter head assembly with the tool c3 on the transition tool grabbing mechanism a5. In some embodiments, the tool changing device a6 includes a second motor a61 and a tool changing arm a62. The fixed portion of the second motor a61 is disposed on the frame c1. The output shaft of the second motor a61 drives the tool changing arm a62 to rotate back and forth. The rotation axis of the tool changing arm a62 is arranged vertically. The tool changing arm a62 is provided with two tool grabbing openings, one on either side of the rotation axis of the tool changing arm a62 and arranged in a circular array around the rotation axis of the tool changing arm a62. During use, the second motor a61 drives the tool changing arm a62 to rotate, causing the two tool grabbing openings on the tool changing arm a62 to respectively engage the tool c3 on the cutter head assembly and the tool c3 on the transition tool grabbing mechanism a5.

[0065] Optionally, the knife gripping edge grasps the side of the knife handle on the tool c3. When the knife gripping edge on the knife gripping arm clamps the side of the knife handle of the tool c3 grasped by the transition knife gripping mechanism a5, the transition knife changing mechanism releases the knife handle.

[0066] In actual use, the grabber sleeve a54 can be made of an elastic material. When the grabber sleeve a54 is attached from top to bottom to the top of the shank of the tool c3 on the first or second turntable a3 or a4, the shank of the grabber sleeve a54 is stretched and clamped. When the grabber edge grasps the side of the shank, the grabber arm and the shank are relatively fixed, and the lifting cylinder a522 drives the grabber sleeve a54 upward, thereby extracting the shank from the grabber sleeve a54. In addition, the other grabber edge of the tool changer arm a62 grasps the side of the shank of the tool c3 on the cutter head assembly, and the spindle moves upward, disengaging the shank and spindle of the tool c3. After both grabber edges on the tool changer arm a62 grasp the shank of the tool c3, the second motor a61 drives the tool changer arm a62 to rotate 180 degrees, swapping the positions of the two grabber edges on the tool changer arm a62. When the positions of the two grabbing openings of the tool changing arm a62 are interchanged, the lifting cylinder a522 drives the grabbing sleeve a54 to move downward, and covers the top of the shank of the tool c3 on the grabbing opening below the grabbing sleeve a54. The cutter head assembly grabs the top of the shank of the tool c3 on the corresponding grabbing opening, and the second motor a61 drives the grabbing arm to rotate toward the direction away from the opening of the grabbing opening, so that the grabbing opening of the grabbing arm close to the grabbing sleeve a54 is separated from the shank of the tool c3 on the grabbing sleeve a54, and the grabbing opening close to the cutter head assembly is separated from the shank of the tool c3 on the cutter head assembly.

[0067] In order to conveniently perform milling processing on the workpiece at multiple angles, in some embodiments, the tool head assembly includes a B-axis and a milling spindle b4, the B-axis is arranged on the three-axis motion mechanism c2, the milling spindle b4 is arranged on the B-axis, the B-axis extends in the front-back direction, the B-axis drives the milling spindle b4 to rotate, and the rotation axis of the milling spindle b4 is perpendicular to the B-axis.

[0068] The B-axis is used to drive the milling spindle b4 to rotate so as to adjust the processing angle of the milling spindle b4. In some embodiments, the B-axis includes a mounting sleeve b1, which extends in the front-to-back direction. The mounting sleeve b1 is arranged on the three-axis motion mechanism c2, and a mounting channel is formed in the mounting sleeve b1. The B-axis also includes a reduction motor b2, a transmission shaft b3 and a milling spindle b4; the reduction motor b2 is inserted into the mounting channel, and the reduction motor b2 is fixedly connected to the mounting sleeve b1; the transmission shaft b3 is fixedly connected to the output end of the reduction motor b2, and the reduction motor b2 drives the transmission shaft b3 to rotate, and the transmission shaft b3 is connected to the inner wall of the mounting channel through the sixth bearing b8; the transmission shaft b3 extends in the front-to-back direction, and the transmission shaft b3 is fixedly connected to the milling spindle b4, and the rotation axis of the milling spindle b4 is perpendicular to the axis of the transmission shaft b3. The reduction motor b2 is installed in the installation channel on the installation sleeve b1. The reduction motor b2 is fixedly connected to the installation sleeve b1. The reduction motor b2 drives the milling spindle b4 to rotate through the transmission shaft b3 to adjust the processing direction of the milling spindle b4. The rotating shaft and the installation channel are connected through the sixth bearing b8. Therefore, the installation sleeve b1 can be effectively utilized to support the transmission shaft b3, reducing the possibility of bending at the connection between the transmission shaft b3 and the reduction motor b2, and reducing the possibility of bending at the connection between the milling spindle b4 and the transmission shaft b3. The structural strength is high.

[0069] In actual use, the milling spindle b4 is provided with a driving source, and the milling spindle b4 can rotate to drive a tool c3 such as a milling cutter to perform processing. The tool c3 in the tool magazine assembly is used to be mounted on the milling spindle b4.

[0070] Mounting sleeve b1 extends in the front-to-back direction, i.e., the mounting channel extends in the front-to-back direction. Reducer motor b2 is inserted into the mounting channel from the right end of mounting sleeve b1. The inner diameter of the central portion of the mounting channel is smaller than the inner diameter of the right end of the channel, thereby limiting the insertion depth of reducer motor b2 from the right end of the mounting channel. Furthermore, the inner wall of the mounting channel is provided with a raised rib, located approximately in the middle of the mounting channel. The rib is screwed to the fixing portion of reducer motor b2. The screws attached to the raised rib extend in the direction of extension of the mounting channel, i.e., in the front-to-back direction. The screws attached to the raised rib are arranged around the central axis of the mounting channel. Milling spindle b4 is disposed on the left side of mounting sleeve b1. Drive shaft b3 is disposed between milling spindle b4 and reducer motor b2. The axis of the output shaft of reducer motor b2 extends in the front-to-back direction. Reducer motor b2 drives milling spindle b4 to rotate via drive shaft b3 to adjust the machining direction of milling spindle b4.

[0071] To further enhance the connection strength of the B-shaft, in some embodiments, the B-shaft further includes a sheath b5 into which the mounting sleeve b1 is inserted. When in use, the sheath b5 is sheathed around the outer wall of the mounting sleeve b1, further enhancing the strength of the mounting sleeve b1.

[0072] To more accurately adjust the angle of the milling spindle b4 in the machining direction, in some embodiments, the sheath b5 extends toward the milling spindle b4 to form an extension b51. The extension b51 is disposed between the mounting sleeve b1 and the milling spindle b4. An installation space is formed within the extension b51. A reading head b61 and a scale drum b62 are disposed within the installation space. The scale drum b62 is secured to the drive shaft b3, and the reading head b61 is secured to the mounting sleeve b1. In actual use, the scale drum b62 and the reading head b61 are combined into a grating scale. The reading head b61 reads the graduations on the scale drum b62 to determine the relative rotation angle between the rotating shaft and the mounting sleeve b1. Optionally, the reduction motor b2 is a servo motor. The user can adjust the servo motor based on the actual rotation angle of the drive shaft b3 and the mounting sleeve b1 as measured by the grating scale, forming a closed-loop feedback loop for more precise machining.

[0073] To protect components such as the scale scale from external dust and other factors, and secondly, to enable the drive shaft b3 to rotate the milling spindle b4, the B-axis further comprises a cover plate b7, which is fixedly connected to the scale drum b62 and the milling spindle b4. The cover plate b7, the mounting sleeve b1, the sheath b5, and the drive shaft b3 define the installation space. In actual use, the cover plate b7 is provided with multiple screws, which securely connect the cover plate b7 and the milling spindle b4.

[0074] To ensure a more secure and stable installation of the cover plate b7, in some embodiments, the cover plate b7 abuts against the inner wall of the sheath b5. This structure is simple and convenient to set up. In some embodiments, the sheath b5 is mounted on the mounting sleeve b1, and the mounting sleeve b1 can also provide support for the sheath b5, so that the extension b51 of the sheath b5 can be used to support the cover plate b7, making the structure more compact.

[0075] Preferably, the sixth bearing b8 is a first rolling bearing d3222, and the inner ring of the sixth bearing b8 is mounted and fixed on the transmission shaft b3. To further limit the axial position of the transmission shaft b3, in some embodiments, a pressure ring b11 is provided at the end of the mounting sleeve b1 near the milling spindle b4. The pressure ring b11 is fixedly connected to the mounting sleeve b1, and the inner diameter of the pressure ring b11 is smaller than the outer diameter of the sixth bearing b8. The inner wall of the mounting channel is provided with a mounting step b12, and the sixth bearing b8 is disposed between the mounting step b12 and the pressure ring b11. The pressure ring b11 and the mounting step b12 are used to limit the position of the sixth bearing b8. In this way, by limiting the outer ring of the sixth bearing b8 through the pressure ring b11 and the mounting step b12, the transmission shaft b3 can be further limited.

[0076] To ensure a secure mounting of the sixth bearing b8 mounted on the transmission shaft b3, in some embodiments, the transmission shaft b3 is provided with two locking rings b31, which are fixedly connected to the transmission shaft b3, with the sixth bearing b8 positioned between the two locking rings b31. The six bearing b8 is locked to the transmission shaft b3 by the two locking rings b31, which clamp the inner ring of the sixth bearing b8, thereby axially confining the sixth bearing b8 between the two locking rings b31 on the transmission shaft b3.

[0077] The first spindle is used to clamp the workpiece and drive the workpiece to rotate. In addition, in order to enable the workpiece to be mechanized in the first spindle and make processing more convenient, in some embodiments, the first spindle includes a second spindle c4, a rotating device c5, and a pushing device c6. The second spindle c4 is arranged on the frame c1. A loading channel is opened on the second spindle c4. The loading channel extends in the left and right directions. The left end of the loading channel is used to insert the workpiece, and the workpiece extends from the right end of the loading channel. The second spindle c4 is used to clamp the workpiece. The rotating device c5 is arranged on the frame c1. The rotating device c5 drives the second spindle c4 to rotate. The rotation axis of the second spindle c4 extends in the left and right directions. The pushing device c6 is arranged on the frame c1. The pushing device c6 is used to push the workpiece from left to right. The rod-shaped workpiece to be processed can be placed on the second spindle C4, and the pushing device C6 is used to push the rod-shaped workpiece to adjust the length of the rod-shaped workpiece extending from the second spindle C4. After the relative position of the rod-shaped workpiece and the second spindle C4 is determined, the second spindle C4 clamps the rod-shaped workpiece. Driven by the rotating device C5, the second spindle C4 drives the workpiece to rotate synchronously, and the three-axis motion mechanism C2 drives the tool head assembly to process the rod-shaped workpiece clamped by the second spindle C4. After the processing is completed, the second spindle C4 releases the workpiece, and then the pushing device C6 pushes the rod-shaped workpiece, so that the rod-shaped workpiece slides along the loading channel and further extends from the second spindle C4. When the extended length is determined, the second spindle C4 clamps the workpiece again, and the three-axis motion mechanism C2 drives the tool C3 on the tool head assembly to continue processing the workpiece. It is convenient to use. After the workpiece is loaded into the loading channel, there is no need for manual labor to extend the workpiece from the loading channel of the second spindle C4.

[0078] The three-axis motion mechanism c2 is used to drive the B-axis to move in three-dimensional space. In some embodiments, the three-axis motion mechanism c2 includes a left-right motion unit c21 disposed on the frame c1, a front-back motion unit c22 disposed on the left-right motion unit c21, and a vertical motion unit c23 disposed on the front-back motion unit c22. The left-right motion unit c21 drives the front-back motion unit c22 to reciprocate in the left-right direction, and the front-back motion unit c22 drives the vertical motion unit c23 to reciprocate in the front-back direction. The tool c3 is disposed on the vertical motion unit c23, and the vertical motion unit c23 drives the B-axis to reciprocate in the vertical direction. This structure is simple and easy to set up.

[0079] The second spindle c4 is used to clamp the workpiece and drive the workpiece to rotate synchronously. In some embodiments, the second spindle c4 includes a second support c41, a second shaft c42, a chuck c43 and a driving member c44. The second support c41 is fixed on the frame c1, and the second shaft c42 is arranged on the second support c41. The second shaft c42 extends in the left and right directions. The second shaft c42 extends in the left and right directions. The loading channel extending in the left and right directions is opened in the second shaft c42. The chuck c43 is fixed on the second shaft c42. The driving member c44 is arranged on the frame c1 or the second support c41. The driving member c44 drives the chuck c43 to loosen or tighten, so that the chuck c43 loosens or clamps the workpiece in the loading channel. The second shaft c42 is set on the second support c41. The second shaft c42 is driven to rotate by the rotating device c5, thereby driving the chuck c43 on the second shaft c42 to rotate, so that the workpiece rotates with the rotation of the second shaft c42. The driving member c44 uses the adjustment chuck c43 to loosen or clamp the workpiece.

[0080] In actual use, the rotating device c5 includes a motor mounted on the frame c1. A pulley c53 is mounted on the motor's output shaft. A synchronous belt c52 is wound around pulley c53, which is connected to the second shaft c42 via the synchronous belt c52. When the motor's output shaft rotates, it drives pulley c53, which in turn, in turn, drives the second shaft c42.

[0081] The chuck c43 is used to clamp the workpiece. For example, the chuck c43 can be used to clamp the rod-shaped workpiece. In some embodiments, the chuck c43 includes a first sleeve c431, a second sleeve c432 and a second spring c433. The first sleeve c431 is arranged in the feeding channel. The first sleeve c431 extends in the left-right direction. The first sleeve c431 and the feeding channel can be relatively slidably matched. The second sleeve c432 is arranged in the first sleeve c431. The right end of the second shaft body c42 is provided with a corner extending toward the central axis of the feeding channel. The corner is used to prevent the first sleeve c431 and the second sleeve c432 from detaching from the feeding channel from the right end of the feeding channel. The second sleeve c432 extends in the left-right direction. The second spring c433 is arranged in the first sleeve In the cylinder c431, the left end of the second spring c433 is arranged on the first sleeve c431, and the right end of the second spring c433 is against the second sleeve c432. A clamping section is provided at the right end of the first sleeve c431, and the inner diameter of the clamping section gradually increases from left to right. A plurality of clamping blocks are provided at the right end of the second sleeve c432, and all the clamping blocks are arranged around the axis of the second sleeve c432. The clamping blocks are slidably fitted with the inner wall of the clamping section. The second sleeve c432 is made of elastic material, and the driving member c44 is used to drive the first sleeve c431 to move to the right so that the clamping section forces the second sleeve c432 to deform, so that all the clamping blocks clamp the workpiece.

[0082] When the workpiece needs to be clamped, the driving member c44 drives the first sleeve c431 to move to the right. Under the limiting action of the rotation angle and the first sleeve c431, the second spring c433 between the second sleeve c432 and the first sleeve c431 is compressed. Since the inner diameter of the clamping section gradually decreases from right to left, the clamping section forces the second sleeve c432 to shrink, so that the clamping block on the second sleeve c432 moves toward the axial direction of the second sleeve c432, thereby clamping the workpiece.

[0083] When the workpiece needs to be loosened, the driving member c44 removes the external force on the first sleeve c431 to the right, and under the elastic force of the compressed second spring c433, the first sleeve c431 moves to the left, so that the clamping section releases the second sleeve c432, and the second sleeve c432 is reset under the action of its own elastic force.

[0084] In order to make the second sleeve c432 more easily deformable, in some embodiments, the second sleeve c432 is provided with a plurality of second through holes c4321 extending to the right end of the second sleeve c432, and a second through hole c4321 is provided between two adjacent clamping blocks. This structure is simple and convenient to set up.

[0085] The driving member C44 is used to push the first sleeve C431 rightward, causing the clamping block on the second sleeve C432 to clamp the workpiece. In some embodiments, the driving member C44 includes a sleeve with external threads and is disposed to the left of the first sleeve C431. The sleeve is disposed within the feeding channel and has internal threads that mate with the external threads. The rotary cylinder C442 is fixed to the second support C41 and rotates the sleeve, causing it to move toward or away from the first sleeve C431. This structure is simple and convenient to set up. The rotary cylinder C442 drives the sleeve to rotate. The interaction of the internal and external threads causes the sleeve to move rightward against the first sleeve C431. The clamping section compresses the second sleeve C432, causing it to contract, thereby causing the clamping block to clamp the workpiece. At the same time, through the setting of the internal thread and the external thread, when the sleeve is rotated to the appropriate position, for example, when the internal thread and the external thread are tightened, the rotary cylinder c442 can be selected to stop the power output, and the force between the external thread and the internal thread can be used to keep the sleeve against the first sleeve c431, avoiding the need for the rotary cylinder c442 to continuously output power after clamping the workpiece.

[0086] When the main shaft rotates, the first sleeve c431 also rotates along with the second shaft c42 in the main shaft. To enable synchronous rotation of the first sleeve c431 and the second shaft c42, in some embodiments, the outer wall of the first sleeve c431 is provided with a first chute c4311 extending in the left-right direction. The second shaft c42 has a mounting hole, within which is provided a latch c4312 that inserts into the first chute c4311. This structure is simple and convenient to set up. The latch c4312 is inserted into the first chute c4311, connecting the mounting hole to the first chute c4311 via the latch c4312. As a result, when the second shaft c42 rotates, the second shaft c42, through the latch c4312, drives the first sleeve c431 to rotate synchronously. In addition, the first slide groove c4311 extends in the left-right direction, so that the pin c4312 and the first sleeve c431 can move relative to each other in the left-right direction, thereby not affecting the pushing device c6 to push the first sleeve c431 to move to the right.

[0087] The pushing device c6 is used to push the workpiece so that the workpiece extends from the right end of the loading channel. In some embodiments, the pushing device c6 includes a second pushing cylinder c62 and a supporting tube c61. The second pushing cylinder c62 is arranged on the frame c1 or the second support c41. The supporting tube c61 is arranged in the loading channel. The supporting tube c61 is fixedly connected to the frame c1 or the second support c41. The workpiece is used to be inserted into the supporting tube c61. The piston rod of the second pushing cylinder c62 is inserted into the supporting tube c61. The piston rod of the second pushing cylinder c62 is used to push the workpiece in the supporting tube c61 to move to the right. When in use, the cylinder body of the second pushing cylinder c62 is installed on the frame c1 or the second support c41, and the piston rod of the second pushing cylinder c62 extends to the right. The piston rod pushes the workpiece to move from left to right along the supporting tube c61, so that the pushing device c6 drives the workpiece to load.

[0088] Preferably, the second pushing cylinder c62 is arranged on the frame c1.

[0089] In actual use, a push rod is provided on the piston rod of the second pushing cylinder c62, and the push rod extends in the left and right directions. The left end of the push rod is provided with a connecting sleeve fixedly connected to the push rod. The piston rod of the second pushing cylinder c62 is inserted into the connecting sleeve. The connecting sleeve is made of elastic material. The connecting sleeve is wrapped around the right end of the piston rod of the second pushing cylinder c62. Since the workpiece will rotate with the rotation of the main shaft of the crusher, the second pushing cylinder c62 does not rotate. Through the setting of the connecting sleeve and the push rod, the piston rod of the right second pushing cylinder c62 can be prevented from directly abutting against the workpiece rotating due to the rotation of the crusher main shaft, thereby effectively protecting the second pushing cylinder c62.

[0090] The supporting tube c61 is used to guide the workpiece, allowing it to move along its length. Accordingly, to allow the workpiece to extend in the left-right direction, the supporting tube c61 extends in that direction. While the supporting tube c61 can be used to guide the workpiece, it also needs to be mounted on the main spindle to ensure its position. To this end, in some embodiments, a pipe clamp c411 is provided on the second support c41. The pipe clamp c411 clamps the supporting tube c61. A bushing c4322 is provided within the feed channel, through which the supporting tube c61 passes. The bushing c4322 supports the supporting tube c61. The provision of the pipe clamp c411 and bushing c4322 supports the supporting tube c61 and radially positions the supporting tube c61.

[0091] In certain embodiments, the bushing c4322 is installed within the second sleeve c432, making space utilization more efficient. Furthermore, the second sleeve c432 is located at the right end of the main shaft, while the pipe clamp c411 is located at the left end of the main shaft. For example, the pipe clamp c411 is positioned between the pusher device c6 and the main shaft. The pipe clamp c411 and bushing c4322 are respectively used to support the left and right ends of the supporting tube c61, thereby stabilizing the structure of the supporting tube c61. Preferably, the outer wall of the bushing c4322 contacts the inner wall of the second sleeve c432, and the second sleeve c432 is used to radially limit the bushing c4322.

[0092] The pushing device c6 is used to push the workpiece from left to right, so that the workpiece enters the loading channel from the left end and then extends from the right end of the loading channel. However, this alone cannot ensure the length of the workpiece extending from the right end of the loading channel. As a result, in actual processing, it is necessary to further determine the length of the workpiece before processing. To this end, in some embodiments, the three-axis motion mechanism c2 is provided with an abutment block c71, and the three-axis motion mechanism c2 is provided with a sensor c72. The sensor c72 is used to sense whether the abutment block c71 is in contact with the workpiece. When in use, before the pushing device c6 pushes the workpiece from left to right, the user drives the three-axis motion mechanism c2 to move the abutment block c71 to face the loading channel according to the actual length of the workpiece required. Thus, the pushing device c6 pushes the workpiece from the right end of the loading channel until the workpiece hits the abutment block c71, that is, the distance from the right end of the loading channel to the abutment block c71 is the length of the workpiece extending. The sensor c72 can be used to sense whether the workpiece is in contact with the abutment block c71. Optionally, the sensor c72 may be a photoelectric sensor c72, a pressure sensor c72 or an infrared sensor c72, etc.

[0093] The first sub-spindle is used to clamp a workpiece, such as a rod. In some embodiments, the first sub-spindle includes a spindle base d31, a drive unit, and a clamping mechanism d32. The drive unit is disposed on the turntable assembly or the spindle base d31, the spindle base d31 is fixed to the turntable assembly, the clamping mechanism d32 is disposed on the spindle base d31, the clamping mechanism d32 and the spindle base d31 are relatively rotatable, the drive unit drives the clamping mechanism d32 to rotate, the clamping port is provided on the clamping mechanism d32, and the depth of the clamping port is oriented in the same vertical plane as the axis of the first lathe spindle. The clamping mechanism d32 is used to clamp a rod-shaped workpiece. The drive unit drives the clamping mechanism d32 to rotate, so that the clamping mechanism d32 and the spindle base d31 rotate relative to each other, thereby driving the rod-shaped workpiece mounted at the first clamping port to rotate.

[0094] The clamping mechanism d32 is used to clamp a rod-shaped workpiece. When the driving unit drives the clamping mechanism d32 to rotate, the clamping mechanism d32 drives the rod-shaped workpiece to rotate. In some embodiments, the clamping mechanism d32 includes a first shaft d321, a pushing assembly d322, a first spring d323, a third sleeve d324, a fourth sleeve d325 and a plurality of first clamping blocks d326, the first shaft d321 is arranged on the spindle base d31, the first shaft d321 and the base can rotate relative to each other, the driving unit drives the first shaft d321 to rotate, a first clamping channel is provided in the first shaft d321, one end of the first shaft d321 opens the first clamping port, the first clamping port is connected to the first clamping channel, the third sleeve d324 is arranged in the first clamping channel, the third sleeve d324 is coaxially connected to the first shaft d321, the fourth sleeve d325 is arranged in the third sleeve d324, and the fourth sleeve d325 faces away from the The end of the first clamping port and the end of the third sleeve d324 away from the first clamping port are connected by the first spring d323, and all the first clamping blocks d326 are fixed to the end of the fourth sleeve d325 close to the first clamping port. The outer diameter surrounded by all the first clamping blocks d326 is larger than the inner diameter of the first clamping port. The end of the third sleeve d324 close to the first clamping port is called the clamping section, and the inner diameter of the clamping section decreases in the direction away from the first clamping port. All the first clamping blocks d326 abut the inner wall of the clamping section. The fourth sleeve d325 and / or the first clamping block d326 are made of elastic material, and the pushing assembly d322 is arranged on the spindle base d31 or the mounting box d2. The pushing assembly d322 is used to push the third sleeve d324 to move toward the first clamping port.

[0095] Optionally, the first clamping opening is provided at the left end of the first shaft body d321.

[0096] Preferably, the fourth sleeve d325 is made of elastic material.

[0097] When it is necessary to clamp the rod-shaped workpiece, the rod-shaped workpiece is inserted from the first clamping port into the first clamping channel in the first shaft body d321, and the pushing assembly d322 pushes the third sleeve d324 toward the first clamping port. In the process of the pushing assembly d322 pushing the third sleeve d324, the first spring d323 is compressed. At the same time, since the inner diameter of the clamping section shrinks away from the first clamping port, the first clamping block d326 on the fourth sleeve d325 is squeezed by the inner wall of the clamping section on the third sleeve d324, so that the fourth sleeve d325 is deformed, and the first clamping block d326 contracts to clamp the rod-shaped workpiece.

[0098] When it is necessary to loosen the rod-shaped workpiece, the pushing assembly d322 resets and the third sleeve d324 resets under the elastic force of the first spring d323, thereby removing the squeezing of the clamping section on the third sleeve d324 on the first clamping block d326 on the fourth sleeve d325, and the fourth sleeve d325 resets under its own elastic action.

[0099] In actual use, the driving unit includes a motor, which can drive the first shaft d321 to rotate through a belt.

[0100] In order to enable the third sleeve d324 and the first shaft d321 to be coaxially transmitted, and the first shaft d321 and the third sleeve d324 to slide relative to each other, in some embodiments, the outer wall of the third sleeve d324 is provided with a third sliding groove d3241 along the axial direction of the third sleeve d324, and the first shaft d321 is provided with a third slider d3242, and the third slider d3242 is fixedly connected to the first shaft d321, and the third slider d3242 is inserted into the third sliding groove d3241, and the third slider d3242 and the third sliding groove d3241 can be relatively slidably matched. The third slider d3242 and the third slide groove d3241 can slide relative to each other. When in use, the third sleeve d324 is driven to rotate by the third slider d3242. When the third sleeve d324 is pushed by the pushing assembly d322 or slides under the reset force of the first spring d323, the third slider d3242 and the third slide groove d3241 slide relative to each other.

[0101] In actual use, the third sliding groove d3241 can be provided with one or more, for example, two, three or four. Each third sliding groove d3241 is provided with at least one third sliding block d3242.

[0102] Optionally, the third slider d3242 can be a screw or a pin.

[0103] To make the fourth sleeve d325 more easily deformable and less susceptible to damage during deformation, in some embodiments, the fourth sleeve d325 is provided with multiple through holes extending to the end surface of the fourth sleeve d325 near the first clamping opening, with one such through hole provided between every two adjacent first clamping blocks d326. The provision of these through holes makes the fourth sleeve d325 more easily deformable and also provides a certain margin for deformation, reducing the possibility of damage to the fourth sleeve d325.

[0104] The pusher assembly d322 is used to push the third sleeve d324, causing the third sleeve d324 to move toward the first clamping opening. In some embodiments, the pusher assembly d322 includes a pusher and a push rod. The pusher is disposed on the spindle base d31 or the mounting box d2. The pusher drives the push rod to move along the length of the first shaft d321. The push rod is used to push the third sleeve d324. The first clamping channel is provided with a limiting step, which is used to limit the movement of the third sleeve d324 away from the first clamping opening. During use, the pusher drives the push rod to push the third sleeve d324, causing the third sleeve d324 to move toward the first clamping opening.

[0105] The limiting step is arranged on the side of the third sleeve d324 facing away from the first clamping opening. In some embodiments, it can limit the third sleeve d324 so that the third sleeve d324 is confined between the first clamping opening and the limiting step.

[0106] The pushing member is used to push the push rod to move along the length direction of the first shaft d321. In some embodiments, the pushing member includes a first pushing cylinder d3221, a first bearing d3222, a mounting frame d3223, a sleeve d3224, a clamping block d3225 and a lever d3226. The first pushing cylinder d3221 is arranged on the spindle base d31, the first pushing cylinder d3221 is hinged to the spindle base d31, the first pushing cylinder d3221 is hinged to the mounting frame d3223, the mounting frame d3223 is hinged to the mounting box d2, and the space enclosed by the inner side of the mounting frame d3223 is provided with two clamping blocks d3225, the two clamping blocks d3225 are connected to the mounting frame d3223 through a rotating shaft, and the first bearing d3222 is arranged on the two clamping blocks d322 5, the two clamping blocks d3225 fix the outer ring of the first bearing d3222, the sleeve d3224 is arranged in the inner ring of the first bearing d3222, the push rod is inserted into the sleeve d3224, the push rod and the inner wall of the sleeve d3224 can slide relative to each other, a pushing hole is provided on the side of the sleeve d3224, the clamping block d3225 is connected to the sleeve d3224 through a rotating shaft, the lever d3226 is hinged to the sleeve d3224, and the lever d3226 extends from the pushing hole; the first pushing cylinder d3221 drives the mounting frame d3223 to swing, so that the first bearing d3222 forces one end of the lever d3226 to move into the pushing hole, and the other end of the lever d3226 pushes the push rod to move in the direction of the third sleeve d324. When in use, the inner ring of the first bearing d3222, the sliding sleeve d3224, and the push rod also rotate along with the rotation of the first shaft d321.

[0107] The fixed part of the first pushing cylinder d3221 is hinged to the spindle base d31, and the movable part of the first pushing cylinder d3221 is hinged to the mounting frame d3223. When the first pushing cylinder d3221 is performing a contraction movement, the first pushing cylinder d3221 drives the mounting frame d3223 to swing toward the direction close to the spindle base d31. Since the clamping block d3225 is connected to the mounting frame d3223 by a rotating shaft, the clamping block d3225 is used to fix the outer ring of the first bearing d3222, so that the first bearing d3222 moves along the sleeve d3224 toward the direction of the spindle base d31 until the first bearing d3222 reaches the end of the lever d3226 extending from the pushing hole. At this time, the first pushing cylinder d3221 continues to contract, and under the pressure of the inner ring of the first bearing d3222, the end of the lever d3226 extending from the pushing hole moves toward the pushing hole, and the other end of the lever d3226 pushes the push rod to move toward the third sleeve d324.

[0108] When the first pushing cylinder d3221 extends, the first pushing cylinder d3221 drives the mounting frame d3223 to swing away from the spindle base d31, causing the first bearing d3222 to move away from the spindle base d31, removing the squeezing force of the first bearing d3222 on the lever d3226. Under the elastic force of the first spring d323, the third sleeve d324 moves toward the push rod, and the push rod pushes the lever d3226, causing the end of the lever d3226 that was pressed into the push hole by the first bearing d3222 to extend from the push hole again.

[0109] The vise d4 can be used to clamp workpieces of various shapes. In some embodiments, the vise d4 includes a first base d41, a second base d42, a first pressure block d43, a second pressure block d44, a first hydraulic cylinder d45, and a second hydraulic cylinder d46. The first base d41 and the second base d42 are respectively fixed to the mounting box d2. The first hydraulic cylinder d45 and the second hydraulic cylinder d46 are respectively fixed to the first base d41 and the second base d42. The piston rods of the first hydraulic cylinder d45 and the second hydraulic cylinder d46 are arranged facing each other. The first pressure block d43 is arranged on the piston rod of the first hydraulic cylinder d45, and the second pressure block d44 is arranged on the piston rod of the second hydraulic cylinder d46. A second clamping space is formed between the first pressure block d43 and the second pressure block d44.

[0110] In order to ensure that the power output by the first hydraulic cylinder d45 and the second hydraulic cylinder d46 is the same, so that the workpiece can be clamped by the first hydraulic cylinder d45 and the second hydraulic cylinder d46 in the middle of the first hydraulic cylinder d45 and the second hydraulic cylinder d46, in some embodiments, the turntable body d1 also includes a hydraulic station, which is connected to the rodless cavity of the first hydraulic cylinder d45 through a first pipeline, and the hydraulic station is connected to the rodless cavity of the second hydraulic cylinder d46 through a second pipeline, and the first pipeline and the second pipeline are interconnected. This structure is simple and easy to set up. The first pipeline and the second pipeline are interconnected, so that the pressure in the first pipeline and the second pipeline is the same, so that the pressure when the piston rods of the first hydraulic cylinder d45 and the second hydraulic cylinder d46 are extended is also the same.

[0111] Optionally, the first hydraulic cylinder d45 and the second hydraulic cylinder d46 have the same specifications to ensure that the first hydraulic cylinder d45 and the second hydraulic cylinder d46 extend or retract by the same distance under the same oil pressure.

[0112] Preferably, a first one-way valve is provided between the hydraulic station and the first pipeline, and a second one-way valve is provided between the hydraulic station and the second pipeline. The first one-way valve is used to allow the hydraulic oil to be transported from the hydraulic station to the first pipeline in one direction only, and the second one-way valve is used to allow the hydraulic oil to be transported from the hydraulic station to the second pipeline in one direction only.

[0113] To prevent interference between the vise d4 and the first sub-spindle during use, in some embodiments, the depth direction of the second clamping space is designated b, and the depth direction of the first sub-spindle is designated a, with a and b being parallel. This structure is simple and convenient to set up. In some embodiments, the vise d4 and the first sub-spindle are respectively positioned on two adjacent, perpendicular surfaces of the mounting box d2, effectively preventing interference between the first sub-spindle and the vise d4.

[0114] In addition, for some special workpiece processing, for example, when the vise d4 and the first sub-spindle are required to clamp the workpiece at the same time, the workpiece can also be inserted into the first sub-spindle and the vise d4 at the same time.

[0115] The rebound mechanism e1 is used to eject the workpiece in the first sub-spindle for unloading. In some embodiments, the first sub-spindle also includes a rebound mechanism e1, which is arranged on the clamping mechanism d32. The rebound mechanism e1 is arranged in the clamping port. When the first sub-spindle releases the workpiece, the rebound mechanism e1 is used to eject the workpiece in the clamping port, so that the workpiece is separated from the first sub-spindle.

[0116] The rebound mechanism e1 is used to pop the workpiece after processing from the first spindle d3. Before the workpiece is ejected, the first sub-spindle releases the clamping of the workpiece. In some embodiments, the rebound mechanism e1 includes a rebound spring e11, a material mounting block e12 and a push rod e13. The material mounting block e12 is arranged on the first sub-spindle. The material mounting block e12 is arranged on the inner side of the clamping port. A recess e122 is provided on the material mounting block e12. The recess e122 is arranged toward the clamping port. A guide hole e1220 is provided at the bottom of the recess e122, and the push rod e13 is inserted into the guide hole e1220. The push rod e13 and the guide hole e1220 can be relatively slidably matched and connected. The inner bottom surface of the recess e122 forms a first limiting flange, and the push rod e13 is provided with a second limiting flange e131. The rebound spring e11 is sleeved on the push rod e13, and the rebound spring e11 is arranged between the first limiting flange e121 and the second limiting flange e131. When the user inserts the workpiece to be processed into the clamping port on the first spindle d3, the workpiece will continue to extend after it reaches the push rod e13, so that the push rod e13 slides along the guide hole e1220, and the rebound spring e11 is compressed under the pressure of the first limiting flange e121 and the second limiting flange e131. When the workpiece is inserted deep enough, the first spindle d3 clamps the workpiece. At this time, the rebound spring e11 is in a compressed state, and the push rod e13 is supported by the spring and the workpiece; when the workpiece clamped on the first spindle d3 is processed, the first spindle d3 releases the workpiece. At this time, the rebound spring e11, under the action of its own elasticity, applies a thrust to the first limiting flange e121 and the second flange, causing the first limiting flange e121 and the second limiting flange e131 to move away from each other, thereby resetting the push rod e13, and the workpiece is pushed out of the clamping port by the push of the push rod e13.

[0117] In order to enable the rebound mechanism e1 to be fixed on the first main shaft d3, for example, the rebound mechanism e1 is fixed in the first clamping channel, in some embodiments, the rebound mechanism e1 also includes a tensioning sleeve e14, a conical sleeve e15, a nut e16 and a limit baffle e17, the limit baffle e17 is fixed on the outer surface of the spring mounting block, the tensioning sleeve e14 and the conical sleeve e15 are respectively mounted on the elastic material mounting block e12, the outer surface of the spring mounting block is provided with an external thread, the nut e16 is connected with the external thread, the tensioning sleeve e14 and the conical sleeve e15 are both arranged between the limit baffle e17 and the nut e16, the tensioning sleeve e14 is made of elastic material, and the nut e16 is used to make the conical sleeve e15 move toward the direction of the tensioning sleeve e14, so that the tensioning sleeve e14 expands to tighten the first main shaft d3. The user can adjust the tightness of the nut e16 to adjust the distance between the tapered sleeve e15 and the tensioning sleeve e14, thereby adjusting the tension of the tensioning sleeve e14.

[0118] In actual use, the tension sleeve e14 is cylindrical, with multiple notches on its end surface near the tapered sleeve e15 to facilitate deformation. The tapered sleeve e15 is conical or frustoconical in shape. The smaller end of the tapered sleeve e15 is inserted into the tension sleeve e14, and movement of the tapered sleeve e15 toward the tension sleeve e14 causes the tension sleeve e14 to expand.

[0119] In certain embodiments, the tensioning sleeve e14 is used to tension the inner wall of the fourth sleeve d325. Preferably, the tensioning sleeve e14 is located on the inner wall of the fourth sleeve d325, near the end of the fourth sleeve d325 near the first spring d323. This position is as far away from the first through-hole d3251 of the fourth sleeve d325 as possible, preventing significant deformation of the fourth sleeve d325 caused by the tensioning sleeve e14, which could affect the use of the first clamping block d326 on the fourth sleeve d325. Furthermore, its installation on the fourth sleeve d325 makes the structure more compact.

[0120] The material receiving mechanism e4 is used to receive the workpiece ejected by the rebound mechanism e1. In some embodiments, the material receiving mechanism e4 includes a first recovery pipe f41, a second recovery pipe f42 and a first cylinder f43. The first recovery pipe f41 is arranged on the frame c1, and the second recovery pipe f42 is arranged above the first recovery pipe f41. The second recovery pipe f42 is inserted into the first recovery pipe f41 from top to bottom. The first recovery pipe f41 and the second recovery pipe f42 can be relatively slidably matched. One end of the first cylinder f43 is fixed on the first recovery pipe f41, and the other end of the first cylinder f43 is fixed on the second recovery pipe f42. The second recovery pipe f42 is provided with a material receiving hole connected to the second recovery pipe f42. When the first cylinder f43 is extended, the material receiving hole of the second recovery pipe f42 is opposite to the clamping port. When it is necessary to receive the workpiece ejected by the rebound mechanism e1, the first cylinder f43 drives the second recovery pipe f42 to extend from the first recovery pipe f41, so that the receiving hole on the second recovery pipe f42 faces the clamping port.

[0121] In actual use, the first recovery pipe f41 includes a vertical section and an inclined section, the vertical section and the inclined section are connected to each other, the inclined section is arranged above the vertical section, and the lower end of the inclined section is fixedly connected to the upper end of the vertical section. The second recovery pipe f42 includes a connecting section and a material receiving section, the connecting section is inserted in the inclined section, the material receiving section extends vertically, and a material receiving hole is provided on the material receiving section.

[0122] To prevent debris from the machine tool's machining from splashing into the receiving hole when material is not needed, in some embodiments, the receiving mechanism e4 also includes a sealing cap f45 and a second air cylinder f44. The ends of the second air cylinder f44 are fixedly connected to the sealing cap f45 and the second recovery pipe f42. When material is needed, the user uses the second air cylinder f44 to move the end cap upward, opening the receiving hole. Once the material is received, the second air cylinder f44 moves the end cap downward to cover the receiving hole.

[0123] In addition, the material receiving mechanism e4 further includes a conveyor belt f5, which is arranged below the output end of the first recovery pipe f41 to transport the workpiece after processing.

[0124] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A turning-milling composite machining center, comprising a frame (c1), characterized in that: Also includes: A three-axis motion mechanism (c2), wherein the three-axis motion mechanism (c2) is arranged on the frame (c1); a cutter head assembly, the cutter head assembly being arranged on the three-axis motion mechanism (c2), the three-axis motion mechanism (c2) driving the cutter head assembly to move in up-down, left-right, and front-back directions, and the cutter head assembly being used to clamp a cutter (c3); a first turning spindle, the first turning spindle being arranged on the machine frame (c1), the first turning spindle being used for clamping one end of a rod-shaped workpiece and driving the rod-shaped workpiece to rotate, the rotation axis of the first turning spindle extending in the left-right direction; A left-right motion mechanism, the left-right motion mechanism being arranged on the frame (c1); A turntable assembly, the turntable assembly being arranged on the right side of the first vehicle main shaft, the turntable assembly being arranged on the left-right motion mechanism, the rotation axis of the turntable assembly extending in the front-to-back direction, and the left-to-right motion mechanism reciprocating in the left-to-right direction along the turntable assembly; a first secondary spindle, the first secondary spindle being on the turntable assembly, the rotation axis of the first secondary spindle being perpendicular to the turntable assembly, and the rotation axis of the first secondary spindle and the rotation axis of the first main spindle being arranged in the same vertical plane; A bench vise (d4), the bench vise (d4) being arranged on the turntable assembly, the bench vise (d4) being provided with a clamping space, the bench vise (d4) being capable of adjusting the width of the clamping space along the front-to-back direction, the clamping space being used for clamping a workpiece; The cutter head assembly includes a B-axis and a milling spindle (b4), wherein the B-axis is arranged on the three-axis motion mechanism (c2), and the milling spindle (b4) is arranged on the B-axis. The B-axis extends in the front-back direction, and the B-axis drives the milling spindle (b4) to rotate, and the rotation axis of the milling spindle (b4) is perpendicular to the B-axis. The B-axis includes a mounting sleeve (b1), the mounting sleeve (b1) extends in the front-back direction, the mounting sleeve (b1) is arranged on the three-axis motion mechanism (c2), and a mounting channel is formed in the mounting sleeve (b1). The B-axis also includes a reduction motor (b2), a transmission shaft (b3) and a milling spindle (b4); the reduction motor (b2) is inserted into the mounting channel, and the reduction motor (b2) is fixedly connected to the mounting sleeve (b1); the transmission shaft (b3) is fixedly connected to the output end of the reduction motor (b2), the reduction motor (b2) drives the transmission shaft (b3) to rotate, and the transmission shaft (b3) is connected to the inner wall of the mounting channel through a sixth bearing (b8); the transmission shaft (b3) extends in the front-back direction, and the transmission shaft (b3) is fixedly connected to the milling spindle (b4), and the rotation axis of the milling spindle (b4) is perpendicular to the axis of the transmission shaft (b3); The first spindle includes a second spindle (c4), a rotating device (c5), and a pushing device (c6). The second spindle (c4) is arranged on the frame (c1). A loading channel is provided on the second spindle (c4). The loading channel extends in the left-right direction. The left end of the loading channel is used to insert a workpiece, and the workpiece extends from the right end of the loading channel. The second spindle (c4) is used to clamp the workpiece. The rotating device (c5) is arranged on the frame (c1). The rotating device (c5) drives the second spindle (c4) to rotate. The rotation axis of the second spindle (c4) extends in the left-right direction. The pushing device (c6) is arranged on the frame (c1). The pushing device (c6) is used to push the workpiece from left to right.

2. The turning-milling compound machining center according to claim 1, characterized in that: The turning-milling composite machining center also includes a tool magazine assembly, which is used to store the tool (c3) and is also used to replace the tool (c3) on the tool head assembly.

3. The turning-milling compound machining center according to claim 2, characterized in that: The tool magazine assembly includes a rotating device (a2), a first turntable (a3), a second turntable (a4), a transition tool-grabbing mechanism (a5) and a tool-changing device (a6), wherein the rotating device (a2) is arranged on the frame (c1), the first turntable (a3) is arranged on the rotating device (a2), the rotating device (a2) drives the first turntable (a3) to rotate, the first turntable (a3) is used to store a plurality of tools (c3), the second turntable (a4) is used to store a plurality of tools (c3), the second turntable (a 4) is arranged below the first turntable (a3), the rotating device (a2) drives the second turntable (a4) to rotate, the transition tool grabbing mechanism (a5) is arranged on the frame (c1), and the tool changing device (a6) is arranged on the frame (c1), the transition tool grabbing mechanism (a5) is used to grab the tool (c3) on the first turntable (a3) or the second turntable (a4), and the tool changing device (a6) is used to grab the tool (c3) on the transition tool grabbing mechanism (a5) and the tool (c3) on the tool head assembly.

4. The turning-milling compound machining center according to claim 3, characterized in that: The second spindle (c4) includes a second support (c41), a second shaft (c42), a chuck (c43) and a driving member (c44); the second support (c41) is fixed on the frame (c1); the second shaft (c42) is arranged on the second support (c41); the second shaft (c42) extends in the left-right direction; the second shaft (c42) is provided with a feeding channel extending in the left-right direction; the chuck (c43) is fixed on the second shaft (c42); the driving member (c44) is arranged on the frame (c1) or the second support (c41); the driving member (c44) drives the chuck (c43) to loosen or tighten, so that the chuck (c43) loosens or clamps the workpiece in the feeding channel.

5. The turning-milling compound machining center according to claim 1, characterized in that: The first sub-spindle includes a spindle base (d31), a drive unit and a clamping mechanism (d32), wherein the drive unit is arranged on the turntable assembly or the spindle base (d31), the spindle base (d31) is fixed on the turntable assembly, and the clamping mechanism (d32) is arranged on the spindle base (d31), and the clamping mechanism (d32) and the spindle base (d31) can rotate relative to each other, and the drive unit drives the clamping mechanism (d32) to rotate, and a clamping port is arranged on the clamping mechanism (d32), and the depth direction of the clamping port is located in the same vertical plane as the axis of the first lathe spindle.

6. The turning-milling compound machining center according to claim 5, characterized in that: The first sub-spindle also includes a rebound mechanism (e1), which is arranged on the clamping mechanism (d32). The rebound mechanism (e1) is arranged in the clamping port. When the first sub-spindle releases the workpiece, the rebound mechanism (e1) is used to eject the workpiece in the clamping port, so that the workpiece is detached from the first sub-spindle.

7. The turning-milling compound machining center according to claim 6, characterized in that: The rebound mechanism (e1) includes a rebound spring (e11), an elastic material mounting block (e12) and a push rod (e13), wherein the elastic material mounting block (e12) is arranged on the first sub-spindle, the elastic material mounting block (e12) is arranged on the inner side of the clamping port, a recess (e122) is provided on the elastic material mounting block (e12), the recess (e122) is arranged toward the clamping port, a guide hole (e1220) is provided at the bottom of the recess (e122), and the push rod (e13) is provided with a guide hole (e1220). ) is inserted into the guide hole (e1220), the push rod (e13) and the guide hole (e1220) can be relatively slidably matched, the inner bottom surface of the recess (e122) forms a first limiting flange, the push rod (e13) is provided with a second limiting flange (e131), the rebound spring (e11) is sleeved on the push rod (e13), and the rebound spring (e11) is arranged between the first limiting flange (e121) and the second limiting flange (e131).

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