In-machine loading and unloading device and grinding machine

Abstract

The utility model discloses a kind of in-machine feeding and discharging device and grinding machine, in-machine feeding and discharging device includes processing main shaft module, loading main shaft module, up and down material changing module and material tray material placing module, processing main shaft module has the first chucking seat for processing tool clamping, loading main shaft module is located at the opposite side of processing main shaft module and has the second chucking seat for workpiece clamping, up and down material changing module is located on the first chucking seat, material tray material placing module includes the rotary drive assembly on the second chucking seat and the material tray of rotary drive assembly driving connection, material tray is equipped with a plurality of material placing holes, a plurality of material placing holes are spaced apart on the circumference with the rotation axis of rotary drive assembly as center line, the above structure setting can play the role of reducing volume, simplifying structure, reducing production cost.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool technology, specifically relating to an in-machine loading and unloading device and a grinding machine. Background Technology

[0002] With the improvement of my country's industrial capabilities, industrial enterprises are placing increasingly higher demands on CNC machine tools. Grinding machines, as general-purpose machine tools for processing milling cutters and drill bits, have a huge market demand, but also face fierce competition. However, currently, the material tray of existing grinding machines is generally located outside the machining chamber. The automatic material changing robot inside the chamber needs to extend outside to pick up and unload materials, resulting in grinding machines that are large in size, complex in structure, and expensive. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies, this utility model provides an in-machine loading and unloading device and a grinding machine, which aims to solve the technical problem that the material tray of the existing grinding machine is placed outside the processing machine compartment, resulting in a large equipment size.

[0004] To achieve the above objectives, the first aspect of this utility model provides an in-machine loading and unloading device, wherein the in-machine loading and unloading device includes a machining spindle module, a loading spindle module, an loading and unloading material exchange module, and a material tray unloading module; the machining spindle module has a first clamping seat for clamping machining tools; the loading spindle module is located on the opposite side of the machining spindle module and has a second clamping seat for clamping workpieces to be processed; the loading and unloading material exchange module is located on the first clamping seat; the material tray unloading module includes a rotary drive assembly located on the second clamping seat and a material tray driven and connected to the rotary drive assembly, the material tray having a plurality of unloading holes spaced apart on a circumference with the rotation axis of the rotary drive assembly as the center line.

[0005] In one embodiment of this utility model, the machining spindle module includes a turntable, a Z-axis lifting drive mechanism, and a first clamping seat. The turntable is configured to rotate on a horizontal plane, the Z-axis lifting drive mechanism is located on the turntable, and the first clamping seat is drivenly connected to the Z-axis lifting drive mechanism.

[0006] In one embodiment of the present invention, the turntable base includes a turntable body and a mounting frame. The turntable body is configured to rotate on a horizontal plane. The mounting frame includes a first end plate and a vertical plate. The first end plate is located at the upper end of the turntable body, and the vertical plate is connected to the first end plate extending out of the turntable body. A Z-axis lifting drive mechanism is located on the vertical plate.

[0007] In one embodiment of the present invention, the first clamping base includes an adapter plate and a first clamping spindle for clamping the processing tool. The adapter plate is driven to connect with the Z-axis lifting drive mechanism. The first clamping spindle and the upper and lower material changing module are both located on the adapter plate.

[0008] In one embodiment of the present invention, the rotary drive assembly includes a mounting base, a rotary drive component, and a turntable. The mounting base is disposed on a second clamping base, the rotary drive component is disposed on the mounting base and its output end extends toward the machining spindle module, the turntable is drivenly connected to the output end of the rotary drive component, and the material tray is provided with a mounting space for the turntable to be detachably mounted.

[0009] In one embodiment of this utility model, a matching positioning conical surface is formed on the peripheral wall of the turntable and the mounting space.

[0010] In one embodiment of this utility model, the material tray placement module further includes a position sensor, which is mounted on the mounting base and detects the position of the turntable.

[0011] In one embodiment of the present invention, a first connecting member is provided at the center of the material tray and the turntable. The first connecting member passes through the material tray and is detachably connected to the turntable. The material tray and the turntable are also detachably connected by a plurality of second connecting members, which are arranged sequentially at intervals around the periphery of the first connecting member.

[0012] In one embodiment of this utility model, the material tray is provided with an elastic pressing member, which is arranged radially along the material swing hole, and the telescopic end of the elastic pressing member extends into the material swing hole.

[0013] In one embodiment of the present invention, the material tray placement module further includes a collet and a limiting ring. The peripheral wall of the placement hole is provided with a positioning groove for the limiting ring to be accommodated. The collet passes through the limiting ring and is detachably placed in the placement hole. The collet can hold the workpiece to be processed.

[0014] In one embodiment of the present invention, the upper and lower material changing module includes a drive cylinder, a gripper cylinder and a pressure holding valve. The cylinder body of the drive cylinder is disposed on the first clamping seat, the gripper cylinder is disposed on the piston rod end of the drive cylinder, and the pressure holding valve is disposed on the cylinder body of the drive cylinder and acts on the gripper cylinder.

[0015] In one embodiment of this utility model, the loading spindle module includes an X-axis translation drive mechanism, a Y-axis translation drive mechanism, and a second clamping seat. The X-axis translation drive mechanism is located on the opposite side of the machining spindle module, and the Y-axis translation drive mechanism is drivenly connected to the X-axis translation drive mechanism. The second clamping seat includes a support plate and a second clamping spindle for clamping the workpiece to be processed. The rotary drive assembly and the second clamping spindle are arranged in parallel on the support plate.

[0016] In one embodiment of this utility model, a plurality of material placement holes are arranged at radial intervals along the material tray.

[0017] To achieve the above objectives, a second aspect of this utility model provides a grinding machine, wherein the grinding machine includes an in-machine loading and unloading device as described above.

[0018] Through the above technical solution, the in-machine loading and unloading device provided by this utility model embodiment has the following beneficial effects:

[0019] When using the above-mentioned in-machine loading and unloading device, since the rotary drive assembly of the material tray loading module is located on the second clamping seat of the loading spindle module, the material tray loading module can be transferred from outside the machining chamber to inside the machining chamber equipped with the machining spindle module and the loading spindle module. Furthermore, the position adjustment of the material tray loading module can be directly achieved by utilizing the loading spindle module. The loading and unloading material exchange module is located on the first clamping seat of the machining spindle module, which also allows the position adjustment of the loading and unloading material exchange module to be directly achieved by utilizing the machining spindle module. In addition, the material tray loading module is configured to include a rotary drive assembly and a material tray that is driven and connected to the rotary drive assembly. Several loading holes on the material tray are spaced apart on a circumference with the rotation axis as the center line. The above structural configuration can reduce the volume, simplify the structure, and reduce the production cost.

[0020] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the in-machine loading and unloading device according to an embodiment of the present utility model;

[0023] Figure 2 This is a structural schematic diagram of the machining spindle module and the upper and lower material changing module according to one embodiment of the present utility model;

[0024] Figure 3 This is a structural schematic diagram of the loading spindle module and the material tray placement module according to one embodiment of the present invention;

[0025] Figure 4 This is a structural schematic diagram of a material tray placement module according to one embodiment of the present invention;

[0026] Figure 5 This is a cross-sectional structural diagram of the material tray placement module according to one embodiment of the present utility model;

[0027] Figure 6 This is a cross-sectional structural diagram of the material tray and the first connecting member according to one embodiment of the present utility model;

[0028] Figure 7This is a partial structural diagram of a material tray equipped with a collet and a limiting ring according to one embodiment of the present invention;

[0029] Figure 8 This is a partial structural diagram of a material tray equipped with an elastic top pressing member according to one embodiment of the present utility model;

[0030] Figure 9 This is a structural schematic diagram of the upper and lower material changing module according to one embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100. Machining spindle module; 110. Turntable base; 111. Turntable body; 112. First end plate; 113. Second end plate; 120. Z-axis lifting drive mechanism; 130. First clamping seat; 131. Adapter plate; 132. First clamping spindle; 200. Loading spindle module; 210. X-axis translation drive mechanism; 220. Y-axis translation drive mechanism; 230. Second clamping seat; 231. Support plate; 232. Second clamping spindle; 300. Up and down material changing module; 310. Drive cylinder; 320. Gripper cylinder; 321. Gripper body; 3 30. Pressure holding valve; 340. Rod end connector; 400. Material tray unloading module; 410. Material tray; 411. Unloading hole; 412. Installation space; 413. Positioning conical surface; 420. Mounting base; 421. Lower mounting body; 422. Upper mounting body; 430. Rotary drive component; 431. Protective cover; 440. Turntable; 441. Position sensor; 450. First connecting component; 451. Fastening section; 452. Abutment section; 453. Grip; 470. Reducer; 480. Elastic pressing component; 490. Collet; 491. Limiting ring. Detailed Implementation

[0033] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0034] The following description of the in-machine loading and unloading device and grinding machine of this utility model is based on the accompanying drawings.

[0035] like Figure 1 As shown, this utility model provides an in-machine loading and unloading device, wherein the in-machine loading and unloading device includes:

[0036] The machining spindle module 100 has a first clamping seat 130 for clamping machining tools;

[0037] The loading spindle module 200 is located on the opposite side of the machining spindle module 100 and has a second clamping seat 230 for clamping the workpiece to be processed.

[0038] The upper and lower material changing module 300 is located on the first clamping base 130;

[0039] The material tray placement module 400 includes a rotary drive assembly mounted on the second clamping base 230 and a material tray 410 drivenly connected to the rotary drive assembly. The material tray 410 is provided with a plurality of placement holes 411, which are spaced apart on a circumference with the rotation axis of the rotary drive assembly as the center line.

[0040] When using the above-mentioned in-machine loading and unloading device, since the rotary drive assembly of the tray loading module 400 is located on the second clamping seat 230 of the loading spindle module 200, the tray loading module 400 can be transferred from outside the processing machine compartment to inside the processing machine compartment where the processing spindle module 100 and the loading spindle module 200 are located. Furthermore, the position adjustment of the tray loading module 400 can be directly achieved by utilizing the loading spindle module 200. The loading and unloading module 300 is located on the first clamping seat 130 of the processing spindle module 100, which also allows the position adjustment of the loading and unloading module 300 to be directly achieved by utilizing the processing spindle module 100. In addition, the tray loading module 400 is configured to include a rotary drive assembly and a tray 410 that is driven and connected to the rotary drive assembly. A plurality of loading holes 411 on the tray 410 are spaced apart on a circumference with the rotation axis as the center line. The above structural configuration can reduce the volume, simplify the structure, and reduce the production cost.

[0041] Taking a grinding wheel as the processing tool and a bar stock such as a milling cutter or drill bit as the workpiece as an example, the following is an explanation: The upper and lower material exchange module 300 can first transfer the workpiece placed on the tray placement module 400 to the second clamping seat 230 on the loading spindle module 200. Then, the machining spindle module 100 drives the processing tool on the first clamping seat 130 to grind the workpiece on the second clamping seat 230 until the required tool is produced. After the upper and lower material exchange module 300 transfers the tool on the second clamping seat 230 to the tray placement module 400, the next workpiece to be processed on the tray placement module 400 is transferred to the second clamping seat 230 on the loading spindle module 200. By repeating the above steps, the grinding of all the workpieces to be processed on the tray placement module 400 can be completed. It should be noted that the processing tools and workpieces to be processed in this utility model are not limited to the products mentioned above. If other products are processed using the in-machine loading and unloading device provided by this utility model, they should also fall within the protection scope of this utility model.

[0042] Optionally, multiple material placement holes 411 are arranged at radial intervals along the material tray 410; Reference Figure 3As shown, for example, multiple material placement holes 411 are arranged in multiple circles at radial intervals along the material tray 410; so that the material placement holes 411 located on different circles can realize the function of classified placement; for example, the material placement hole 411 on the first circle holds the material to be processed; the material placement hole 411 on the second circle holds the processed material.

[0043] Meanwhile, the material tray 410 can be detachably connected to the drive end of the rotary drive assembly, so as to facilitate material replacement of the material tray 410 inside the machine by disassembling and assembling the material tray 410.

[0044] See Figure 1 and Figure 2 In one embodiment of this utility model, the machining spindle module 100 includes a rotary table 110, a Z-axis lifting drive mechanism 120, and a first clamping seat 130. The rotary table 110 is rotatably mounted on a horizontal plane, the Z-axis lifting drive mechanism 120 is mounted on the rotary table 110, and the first clamping seat 130 is drivenly connected to the Z-axis lifting drive mechanism 120. That is, the machining spindle module 100 has at least the rotational freedom of the rotary table 110 and the lifting freedom of the Z-axis lifting drive mechanism 120, so as to drive the machining tool on the first clamping seat 130 to grind the workpiece on the second clamping seat 230, and to drive the upper and lower material changing module 300 to transfer the workpiece or the processed product between the material tray placement module 400 and the second clamping seat 230.

[0045] Specifically, during the grinding process of the workpiece by the machining tool, the rotary table 110 and the Z-axis lifting drive mechanism 120 can operate according to the machining path set by the machining tool. At the same time, when the upper and lower material changing module 300 needs to transfer the workpiece or the processed product between the material tray placement module 400 and the second clamping seat 230, the rotary table 110 and the Z-axis lifting drive mechanism 120 can also operate according to the transfer path set by the upper and lower material changing module 300, so that the gripper body 321 on the upper and lower material changing module 300 is aligned with any one of the placement holes 411 on the material tray placement module 400 or the clamping hole on the second clamping seat 230.

[0046] In one embodiment of this utility model, the turntable base 110 includes a turntable body 111 and a mounting frame. The turntable body 111 is configured to rotate on a horizontal plane. The mounting frame includes a first end plate 112 and a vertical plate. The first end plate 112 is located at the upper end of the turntable body 111, and the vertical plate is connected to one end of the first end plate 112 that extends out of the turntable body 111. A Z-axis lifting drive mechanism 120 is located on the vertical plate. That is, the Z-axis lifting drive mechanism 120 is offset from the rotation axis centerline of the turntable base 110. In other words, the first clamping seat 130 and the upper and lower material changing module 300 located on the Z-axis lifting drive mechanism 120 are offset from the rotation axis centerline of the turntable base 110. This allows the loading spindle module 200, located on the opposite side of the machining spindle module 100, to be closer to the mounting base, and the machining center point can be located on the upper side of the first end plate 112, thus saving internal space. Specifically, the mounting bracket also includes a second end plate 113. The second end plate 113 is arranged at a distance from the first end plate 112 and is located at the upper end of the upright plate. The second end plate 113 may be provided with a shaft mounting part for rotatable installation. The rotation axis center line of the shaft mounting part is collinear with the rotation axis center line of the turntable base 110. The shaft mounting part may be a shaft structure or a hole structure.

[0047] In one embodiment of this utility model, the first clamping base 130 includes a transition plate 131 and a first clamping spindle 132 for clamping machining tools. The transition plate 131 is driven to connect with the Z-axis lifting drive mechanism 120. The first clamping spindle 132 and the upper and lower material changing module 300 are both disposed on the transition plate 131. By adding the transition plate 131, it is convenient to realize the installation of the first clamping spindle 132 and the upper and lower material changing module 300 on the same Z-axis lifting drive mechanism 120. Specifically, the transition plate 131 includes a transition base plate and a transition side plate erected on the transition base plate. The transition side plate is driven to connect with the Z-axis lifting drive mechanism 120. The first clamping spindle 132 and the upper and lower material changing module 300 are respectively disposed on the upper and lower sides of the transition base plate. In addition, the first clamping spindle 132 is configured to be rotatable in a circumferential manner to facilitate adjustment of the grinding angle of the machining tool.

[0048] See Figure 1 , Figures 3 to 6In one embodiment of this utility model, the rotary drive assembly includes a mounting base 420, a rotary drive component 430, and a turntable 440. The mounting base 420 is disposed on a second clamping base 230. The rotary drive component 430 is disposed on the mounting base 420 with its output end extending towards the machining spindle module 100. The turntable 440 is driven to the output end of the rotary drive component 430. The material tray 410 is provided with a mounting space 412 for the turntable 440 to be detachably mounted. By adding the turntable 440, the contact area between the turntable 440 and the rotary drive assembly can be increased to ensure the stability of the material tray 410 installation. Of course, this utility model is not limited to this; the material tray 410 can also be directly driven to the output end of the rotary drive component 430. Specifically, the rotary drive component 430 includes, but is not limited to, a rotary motor. The rotary drive assembly also includes a reducer 470, which is disposed between the rotary drive component 430 and the turntable 440.

[0049] In one embodiment of this utility model, a matching positioning conical surface 413 is formed on the peripheral walls of the turntable 440 and the mounting space 412. The addition of the matching positioning conical surface 413 serves two purposes: guiding during assembly and disassembly, and positioning. Specifically, the peripheral sides of the turntable 440 and the peripheral walls of the mounting space 412 are sequentially provided with a positioning conical surface 413 and an extended cylindrical surface along the assembly / disassembly direction. The peripheral walls of the mounting space 412 are sequentially provided with a positioning conical surface 413 and an extended cylindrical surface from the inside out. The extended cylindrical surfaces on the peripheral sides of the turntable 440 and the peripheral walls of the mounting space 412 are also designed to be matched.

[0050] In one embodiment of this utility model, the material tray placement module 400 further includes a position sensor 441, which is mounted on the mounting base 420 and detects the position of the turntable 440. By adding the position sensor 441, the actual rotation angle of the turntable 440 can be monitored in real time, and the detected data can be fed back to the rotation drive component 430, which can be a servo motor, thereby achieving closed-loop control. Specifically, the position sensor 441 can be a contact type or a non-contact type, preferably a non-contact type, such as a proximity switch. In addition, the mounting base 420 includes a lower mounting body 421 and an upper mounting body 422. The lower mounting body 421 is located inside the machine, and the upper mounting body 422 is detachably located on the upper end of the lower mounting body 421. The rotary drive component 430 is located on the upper mounting body 422. Specifically, the upper mounting body 422 can be a motor mounting base 420. The position sensor 441 can be located on the upper mounting body 422. The upper mounting body 422 can also be provided with a protective cover 431 for protecting the rotary drive component 430.

[0051] In one embodiment of this utility model, a first connecting member 450 is provided at the center position of the material tray 410 and the turntable 440. The first connecting member 450 passes through the material tray 410 and is detachably connected to the turntable 440. The material tray 410 and the turntable 440 are also detachably connected by a plurality of second connecting members, which are arranged sequentially and at intervals around the periphery of the first connecting member 450. That is, through the arrangement of the first connecting member 450 and the plurality of second connecting members, the material tray 410 and the turntable 440 can be connected both at the center position and at the periphery of the center position, so as to ensure the stability of the connection between the two.

[0052] Specifically, the first connecting member 450 includes a fastening section 451, an abutment section 452, and a gripping means 453 arranged sequentially along the axial direction. The fastening section 451 passes through the material tray 410 and is detachably connected to the turntable 440. The abutment section 452 and the gripping means 453 are located on the side of the material tray 410 away from the turntable 440, and a limiting surface is formed between the abutment section 452 and the fastening section 451 to abut against the end of the material tray 410. The gripping means 453 extends radially from the abutment section 452. Thus, the first connecting member 450 can stably press the material tray 410 against the turntable 440 through the abutment of the limiting surface and the threaded connection of the fastening section 451. The addition of the gripping means 453 facilitates tightening or loosening the first connecting member 450 by hand. Meanwhile, the second connecting member can be a fastener, such as a screw or other threaded fastener, a rivet, or a pin.

[0053] See Figure 8 In one embodiment of this utility model, the material tray 410 is provided with an elastic pressing member 480, which is arranged radially along the material swing hole 411, and the telescopic end of the elastic pressing member 480 extends into the material swing hole 411. When the workpiece to be processed is placed in the material swing hole 411, the elastic pressing member 480, due to compression, can apply a clamping force to the workpiece to ensure that the workpiece to be processed will not shake during the clamping process. Of course, the workpiece to be processed can also be placed in the collet 490 first, and then the collet 490 can be placed in the material swing hole 411, so that the elastic pressing member 480 clamps the workpiece to be processed by applying force to the collet 490. Specifically, the elastic pressing member 480 can be a ball screw, which has a built-in spring and a ball. The ball extends into the swing hole 411 under the action of the spring to apply clamping force, thereby avoiding damage to the workpiece or the collet 490. Of course, this utility model is not limited to this. The elastic pressing member 480 can also be configured as other elastic members that cooperate with the clamping structure.

[0054] See Figure 7In one embodiment of this utility model, the material tray placement module 400 further includes a collet 490 and a limiting ring 491. The peripheral wall of the placement hole 411 is provided with a positioning groove for the limiting ring 491 to be accommodated. The collet 490 is detachably placed in the placement hole 411 through the limiting ring 491, and the collet 490 can hold the workpiece to be processed. It can be understood that the collet 490 is designed with a multi-lobed cylindrical structure, which can achieve radial uniform contraction under the action of uniformly applied clamping force on the outer periphery, so as to achieve the holding of the workpiece to be processed in the collet 490. The function of the limiting ring 491 is to apply clamping force to the collet 490. In the free state, the collet 490 is radially open because it is not subject to clamping force. When the collet 490 passes through the limiting ring 491, it is radially contracted due to the clamping force of the limiting ring 491. Specifically, the limiting ring 491 can be an O-ring seal. Meanwhile, by using collets 490 with different inner diameters, it is possible to clamp workpieces with different shaft diameters.

[0055] like Figure 1 , Figure 2 and Figure 9 As shown, in one embodiment of this utility model, the upper and lower material changing module 300 includes a drive cylinder 310, a gripper cylinder 320, and a pressure holding valve 330. The cylinder body of the drive cylinder 310 is mounted on the first clamping seat 130, and the gripper cylinder 320 is mounted on the piston rod end of the drive cylinder 310. By controlling the drive cylinder 310, the gripper cylinder 320 can be driven to extend or retract, so that the gripper cylinder 320 can drive the gripper body 321 to grip or release the corresponding product. Specifically, the drive cylinder 310 can be configured as a double-acting cylinder, and the pressure holding valve 330 is mounted on the cylinder body of the drive cylinder 310 and acts on the gripper cylinder 320, so that the gripper body 321 can still be driven by air pressure in the event of a sudden interruption of the air source, so that the product gripped by the gripper body 321 will not fall accidentally.

[0056] More specifically, the piston rod of the drive cylinder 310 has a groove extending along its length, and the cylinder body of the drive cylinder 310 has a protrusion embedded in the groove, so that the piston rod will not rotate and will have directional stability when it extends or retracts on the cylinder body, thereby ensuring the positional accuracy and stability of the gripper cylinder 320 when gripping the corresponding product. In addition, the piston rod end of the drive cylinder 310 is provided with a rod end connecting seat 340, and the gripper cylinder 320 is located on the side of the rod end connecting seat 340 opposite to the piston rod, which increases the connection area.

[0057] Please see again Figure 1 and Figure 3In one embodiment of this utility model, the loading spindle module 200 includes an X-axis translation drive mechanism 210, a Y-axis translation drive mechanism 220, and a second clamping base 230. The X-axis translation drive mechanism 210 is located on the opposite side of the machining spindle module 100, and the Y-axis translation drive mechanism 220 is drivenly connected to the X-axis translation drive mechanism 210. The second clamping base 230 includes a support plate 231 and a second clamping spindle 232 for clamping the workpiece to be processed. The rotation drive assembly and the second clamping spindle 232 are arranged in parallel on the support plate 231. That is, the loading spindle module 200 has the freedom of movement of the X-axis translation drive mechanism 210 and the Y-axis translation drive mechanism 220, and can cooperate with the rotation of the turntable base 110 and the lifting of the Z-axis lifting drive mechanism 120 of the machining spindle module 100, so that the processing of workpieces with more complex contours can be realized. Of course, this utility model is not limited to this. The X-axis translation drive mechanism 210, Y-axis translation drive mechanism 220 and Z-axis lifting drive mechanism 120 can be specifically set on the machining spindle module 100 or the loading spindle module 200 according to actual needs. In addition, the second clamping spindle 232 is configured to be circumferentially rotatable, so as to realize circumferential machining of the workpiece.

[0058] Specifically, the X-axis translation drive mechanism 210, the Y-axis translation drive mechanism 220, and the Z-axis lifting drive mechanism 120 can all be configured as a motor plus ball screw pair structure or a linear motor drive mechanism.

[0059] In summary, the in-machine loading and unloading device provided by this utility model can be installed inside the machining chamber. It not only has machining functions but also functions for placing and picking up workpieces. It is small in size, simple and compact in structure, and greatly saves space and cost. The loading and unloading module 300 and the tray placement module 400 are respectively located in the machining spindle module 100 and the loading spindle module 200, directly utilizing the multi-axis linkage of the CNC grinding machine itself to achieve precise and efficient workpiece placement and removal.

[0060] Furthermore, this utility model also provides a grinding machine, wherein the grinding machine includes the in-machine loading and unloading device described above. Since the grinding machine adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0061] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An in-machine loading and unloading device, characterized in that, The in-machine loading and unloading device includes: The machining spindle module (100) has a first clamping seat (130) for clamping machining tools; A loading spindle module (200) is located on the opposite side of the machining spindle module (100) and has a second clamping seat (230) for clamping the workpiece to be processed; The upper and lower material changing module (300) is disposed on the first clamping base (130); The material tray placement module (400) includes a rotary drive assembly disposed on the second clamping base (230) and a material tray (410) driven and connected to the rotary drive assembly. The material tray (410) is provided with a plurality of placement holes (411), which are spaced apart on a circumference with the rotation axis of the rotary drive assembly as the center line.

2. The in-machine loading and unloading device according to claim 1, characterized in that, The machining spindle module (100) includes a turntable (110), a Z-axis lifting drive mechanism (120), and a first clamping seat (130). The turntable (110) is configured to rotate on a horizontal plane. The Z-axis lifting drive mechanism (120) is mounted on the turntable (110). The first clamping seat (130) is drivenly connected to the Z-axis lifting drive mechanism (120).

3. The in-machine loading and unloading device according to claim 2, characterized in that, The turntable base (110) includes a turntable body (111) and a mounting frame. The turntable body (111) is configured to rotate on a horizontal plane. The mounting frame includes a first end plate (112) and a vertical plate. The first end plate (112) is located at the upper end of the turntable body (111). The vertical plate is connected to the first end plate (112) and extends out of one end of the turntable body (111). The Z-axis lifting drive mechanism (120) is located on the vertical plate. And / or, the first clamping base (130) includes a transition plate (131) and a first clamping spindle (132) for clamping machining tools. The transition plate (131) is driven to be connected to the Z-axis lifting drive mechanism (120). The first clamping spindle (132) and the upper and lower material changing module (300) are both disposed on the transition plate (131).

4. The in-machine loading and unloading device according to claim 1, characterized in that, The rotary drive assembly includes a mounting base (420), a rotary drive component (430), and a turntable (440). The mounting base (420) is disposed on the second clamping base (230). The rotary drive component (430) is disposed on the mounting base (420) and its output end extends toward the machining spindle module (100). The turntable (440) is drivenly connected to the output end of the rotary drive component (430). The material tray (410) is provided with a mounting space (412) for the turntable (440) to be detachably mounted.

5. The in-machine loading and unloading device according to claim 4, characterized in that, The turntable (440) and the mounting space (412) have matching positioning conical surfaces (413) formed on their peripheral walls; And / or, the material tray placement module (400) further includes a position sensor (441), which is disposed on the mounting base (420) and detects the position of the turntable (440).

6. The in-machine loading and unloading device according to claim 4, characterized in that, The tray (410) and the turntable (440) are provided with a first connector (450) at the center position. The first connector (450) passes through the tray (410) and is detachably connected to the turntable (440). The tray (410) and the turntable (440) are also detachably connected by a plurality of second connectors. The plurality of second connectors are arranged sequentially at intervals around the first connector (450).

7. The in-machine loading and unloading device according to any one of claims 1 to 6, characterized in that, The tray (410) is provided with an elastic pressing member (480), which is arranged radially along the material swing hole (411), and the telescopic end of the elastic pressing member (480) extends into the material swing hole (411).

8. The in-machine loading and unloading device according to any one of claims 1 to 6, characterized in that, The material tray placement module (400) also includes a collet (490) and a limiting ring (491). The peripheral wall of the placement hole (411) is provided with a positioning groove for the limiting ring (491) to be accommodated. The collet (490) passes through the limiting ring (491) and is detachably placed in the placement hole (411). The collet (490) can hold the workpiece to be processed.

9. The in-machine loading and unloading device according to any one of claims 1 to 6, characterized in that, The upper and lower material changing module (300) includes a drive cylinder (310), a gripper cylinder (320), and a pressure holding valve (330). The cylinder body of the drive cylinder (310) is mounted on the first clamping seat (130). The gripper cylinder (320) is mounted on the piston rod end of the drive cylinder (310). The pressure holding valve (330) is mounted on the cylinder body of the drive cylinder (310) and acts on the gripper cylinder (320). And / or, the loading spindle module (200) includes an X-axis translation drive mechanism (210), a Y-axis translation drive mechanism (220), and a second clamping seat (230). The X-axis translation drive mechanism (210) is located on the opposite side of the machining spindle module (100). The Y-axis translation drive mechanism (220) is drivenly connected to the X-axis translation drive mechanism (210). The second clamping seat (230) includes a support plate (231) and a second clamping spindle (232) for clamping the workpiece to be processed. The rotary drive assembly and the second clamping spindle (232) are arranged in parallel on the support plate (231). And / or, the plurality of the material placement holes (411) are arranged at radial intervals along the material tray (410).

10. A grinding machine, characterized in that, The grinding machine includes an in-machine loading and unloading device according to any one of claims 1 to 9.

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