Pass-type double-shaft grinding machine

Abstract

The invention discloses a pass-type double-shaft grinding machine which comprises a machine body, a working table is arranged on the machine body, a claw disc is arranged on the working table in a sliding mode, a tailstock is arranged on the working table in a sliding mode, a moving table is arranged on the working table in a sliding mode, the moving table is arranged between the claw disc and the tailstock, and a rotating device is fixedly arranged on the moving table. A lifting device is rotationally connected to the rotating device, and a clamping device is fixedly connected to the lifting device; according to the clamping device, through the multiple sets of symmetrical and staggered clamping jaws in the clamping device, all-directional and multi-angle stable clamping on a workpiece from multiple directions is achieved, various external force borne by the workpiece in the grinding process can be effectively dispersed to the clamping jaws, and the grinding efficiency is improved. Therefore, it is guaranteed that the workpiece is always kept at the stable position and state in the whole grinding process, the situation that the workpiece is displaced, deformed and the like due to the external force action is effectively prevented, and a solid guarantee is provided for high precision and high quality of grinding machining.

Description

Technical Field

[0001] The invention relates to the technical field of shaft processing equipment, in particular to a through-type double-shaft grinder. Background Art

[0002] A double-axis grinder is an efficient and versatile grinder that grinds the workpiece simultaneously or independently through the grinding wheels installed on two spindles. This design makes the double-axis grinder have high flexibility and production efficiency when processing shaft workpieces. Usually, the two spindles with grinding wheels installed are located on the same side of the workpiece, which is convenient for grinding the outer cylindrical surface of the workpiece at the same time. For example, one grinding wheel can be responsible for rough grinding to remove excess material on the surface of the workpiece, while the other grinding wheel is responsible for fine grinding to improve the accuracy and finish of the machined surface. This division of labor design significantly improves processing efficiency and reduces the time consumption of multiple processes. Modern double-axis grinders are usually equipped with CNC systems, which can achieve precise control of the feed speed, position and grinding path of the grinding wheel through programming. The application of CNC systems not only ensures high precision of the processing process, but also allows the equipment to be flexibly adjusted according to different workpiece requirements. Users can optimize the grinding parameters through programming to adapt to shaft workpieces of different materials, shapes and sizes, thereby further improving production efficiency while ensuring processing quality.

[0003] When existing dual-axis grinders are grinding thinner and longer shaft workpieces, the external force exerted by the grinding wheel on the outer cylindrical surface of the workpiece may be greater than the rigidity of the workpiece itself, resulting in the workpiece being unable to withstand the radial and axial pressures generated by the grinding wheel when rotating at high speed, causing the shaft workpiece to bend or twist under the action of external force, resulting in deformation of thinner and longer shaft workpieces, which seriously affects the processing accuracy and workpiece surface quality, and ultimately makes the size and shape of the finished product fail to meet the design requirements, increasing production costs and time. Summary of the invention

[0004] The purpose of the present invention is to provide a through-type dual-axis grinder to solve the problem that when the existing dual-axis grinder performs grinding processing on thinner and longer shaft workpieces, the external force applied by the grinding wheel on the outer cylindrical surface of the workpiece may be greater than the rigidity of the workpiece itself, resulting in the workpiece being unable to withstand the radial and axial pressures generated by the grinding wheel when rotating at high speed, so that the shaft workpiece is bent or twisted under the action of the external force, resulting in deformation of the thinner and longer shaft workpiece, thereby seriously affecting the processing accuracy and the surface quality of the workpiece, and ultimately making the size and shape of the finished product fail to meet the design requirements, increasing production costs and time.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a through-type double-axis grinding machine, comprising: a machine body, wherein a worktable is arranged on the machine body, a claw plate is slidably arranged on the worktable, a tailstock is slidably arranged on the worktable, the claw plate and the tailstock are symmetrically arranged on the worktable, a grinding head 1 and a grinding head 2 are arranged on the machine body, the grinding head 1 and the grinding head 2 are arranged on one side of the worktable, a moving table is slidably arranged on the worktable, the moving table is arranged between the claw plate and the tailstock, a rotating device is fixedly arranged on the moving table, a lifting device is rotatably connected to the rotating device, a clamping device is fixedly connected to the lifting device, when the grinding head approaches the claw plate or the tailstock through the lifting device, the lifting device is activated to drive the clamping device to move downward, the clamping device is opened during the downward movement, and is separated from the workpiece, and when the grinding head approaches the claw plate or the tailstock, it abuts against the opened clamping device, and under the action of the rotating device, the clamping device is rotated to avoid the grinding head;

[0006] The clamping device comprises a mounting shaft fixedly arranged with the lifting device, a clamping claw is rotatably connected to the outer side of the mounting shaft, a rotating rod is fixedly connected to one side of the clamping claw, and the rotating rod is rotatably connected to the mounting shaft, a connecting rod is slidably inserted on the mounting shaft, the top end of the connecting rod is fixedly connected to the supporting shaft, the side end of the supporting shaft is fixedly connected to a pressure rod, and the bottom end of the pressure rod abuts against the rotating rod, the bottom end of the supporting shaft is fixedly connected to a spring 1, and the bottom end of the spring 1 abuts against the clamping claw;

[0007] Among them, when the lifting device drives the installation shaft to move downward, the top of the workpiece abuts against the top inside the clamping claw, and under the action of the abutment, the clamping claw rotates around the installation shaft, and during the rotation process, the rotating rod is driven to rotate synchronously, so that the rotating rod pushes the pressure rod upward until the clamping claw is fully opened and separated from the workpiece during the downward movement.

[0008] As a further solution of the present invention: a push rod is fixedly connected to one end of the movable platform, and the push rod abuts against the outer shell of the grinding head 1.

[0009] As a further solution of the present invention: an avoidance groove is provided at the top of the moving platform, a slot one is provided at the side end of the avoidance groove, a slot two is provided at the side end of the avoidance groove, and slot one is connected to slot two.

[0010] As a further solution of the present invention: the rotating device includes a connecting block fixedly connected to the bottom end of the avoidance groove, the top of the connecting block is fixedly connected to a mounting box, and the inner side of the mounting box is fixedly connected to an elastic band.

[0011] As a further solution of the present invention: the top end of the installation box is rotatably connected to a mounting frame, the bottom end of the installation frame is fixedly connected to a clamping column, and the clamping column abuts against the elastic band.

[0012] As a further solution of the present invention: the lifting device includes a support member fixedly connected to the top of the mounting frame, a top plate is inserted into the support member, and the top plate is adapted to slot one.

[0013] As a further solution of the present invention: one end of the top plate is fixedly connected to spring 2, one end of the spring 2 is fixedly connected to an inner wall of a slot, and one end of the claw plate is fixedly connected to a push rod.

[0014] As a further solution of the present invention: the support member includes a telescopic rod fixedly connected to the top of the mounting frame, the top of the telescopic rod is fixedly connected to a support block, the support block is rotatably connected to the mounting shaft, a spring three is arranged in the telescopic rod, and the two ends of the spring three are respectively fixedly connected to the internal top and bottom ends of the telescopic rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, the rotating device can quickly drive the clamping device to rotate and avoid, which avoids the obstruction of the clamping device to the grinding head, allowing the grinding head to smoothly reach both ends of the workpiece for grinding. After the grinding head completes the grinding of the area and leaves, the rotating device automatically resets the clamping device with the help of components such as elastic bands. In this way, during the entire grinding process, the rotating device automatically controls the avoidance and reset of the clamping device, thereby ensuring the continuity and smoothness of the grinding operation, improving the working efficiency of the grinder, and effectively avoiding safety accidents caused by improper operation of the operator, providing a safer and more reliable working environment for the operator, and reducing the safety risks and operating costs of the enterprise;

[0017] 2. The lifting device of the present invention can automatically sense the approach of the grinding head and respond quickly. It will drive the clamping device to move down smoothly and accurately, and at the same time make the clamping claws open in a predetermined manner, so as to achieve smooth separation from the workpiece. This process does not require tedious manual operation and intervention, which greatly improves the automation level of the grinder in this key processing link. When the grinding head completes the grinding of both ends of the workpiece and leaves, the lifting device can automatically and accurately drive the clamping device to reset, so that it can firmly clamp the workpiece again, which not only effectively reduces the errors and uncertainties that may be caused by manual operation, but also greatly improves the overall efficiency and quality of the grinding machine processing;

[0018] 3. In the present invention, multiple groups of symmetrical and staggered clamping claws in the clamping device are used to achieve all-round and multi-angle stable clamping of the workpiece from multiple directions, so that various external forces on the workpiece during the grinding process can be effectively dispersed to each clamping claw. Whether it is the strong centrifugal force generated by the high-speed rotation of the grinding head, or the tangential force and axial force generated by the friction between the workpiece and the grinding head during the grinding process, the clamping device can evenly disperse these external forces to each clamping claw, thereby ensuring that the workpiece always maintains a stable position and state throughout the grinding process, effectively preventing the workpiece from being displaced or deformed due to external forces, and providing a solid guarantee for the high precision and high quality of the grinding process;

[0019] 4. In the present invention, the clamping device can quickly and accurately make corresponding action adjustments under the precise drive of the lifting device. It will automatically move down and open the clamping claws to smoothly separate the workpiece from the clamping device, thereby providing sufficient avoidance space for the grinding head when it approaches the two ends of the workpiece, ensuring that the grinding head can smoothly grind the two ends of the workpiece. When the grinding head completes the grinding of the two ends of the workpiece and leaves, the clamping device can automatically and accurately reset and re-clamp the workpiece under the drive of the lifting device, so that the workpiece can continue to stably accept subsequent grinding processing, thereby effectively improving the versatility and processing efficiency of the grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a through-type double-axis grinder according to the present invention;

[0021] Figure 2 It is a schematic diagram of the clamping state of the clamping device in a through-type double-axis grinder according to the present invention;

[0022] Figure 3 It is a schematic diagram of the open state of the clamping device in the through-type double-axis grinder of the present invention;

[0023] Figure 4 It is a structural schematic diagram of a lifting device in a through-type double-axis grinder according to the present invention;

[0024] Figure 5 It is a top view of the structure of a workbench in a through-type double-axis grinder according to the present invention;

[0025] Figure 6 It is a diagram of the contraction state of the second spring in the through-type double-axis grinder of the present invention;

[0026] Figure 7 It is a diagram of the extended state of spring 2 in a through-type dual-axis grinder according to the present invention;

[0027] Figure 8It is a schematic structural diagram of a rotating device in a through-type double-axis grinder according to the present invention;

[0028] Fig. 9 It is a structural schematic diagram of a support member in a through-type dual-axis grinder according to the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the clamping claws in a through-type double-axis grinder according to the present invention;

[0030] Fig.11 It is a schematic structural diagram of a support shaft in a through-type double-axis grinder described in the present invention.

[0031] In the figure: 1. machine body; 2. workbench; 3. claw plate; 4. tailstock; 5. moving table; 51. push rod; 52. avoidance groove; 53. slot two; 54. slot one; 6. rotating device; 61. connecting block; 62. mounting box; 63. elastic band; 64. mounting frame; 65. clamping column; 7. lifting device; 71. supporting member; 711. telescopic rod; 712. supporting block; 713. spring three; 72. top plate; 73. spring two; 74. push rod; 8. clamping device; 81. mounting shaft; 82. clamping claw; 83. rotating rod; 84. connecting rod; 85. supporting shaft; 86. pressure rod; 87. spring one; 9. grinding head one; 10. grinding head two. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0034] Reference Figures 1 to 11 In an embodiment of the present invention, a through-type double-axis grinder includes: a machine body 1, wherein a workbench 2 is arranged on the machine body 1, a claw plate 3 is slidably arranged on the workbench 2, a tailstock 4 is slidably arranged on the workbench 2, the claw plate 3 and the tailstock 4 are symmetrically arranged on the workbench 2, a grinding head 1 9 and a grinding head 2 10 are arranged on the machine body 1, the grinding head 1 9 and the grinding head 2 10 are arranged on one side of the workbench 2, a moving table 5 is slidably arranged on the workbench 2, the moving table 5 is arranged between the claw plate 3 and the tailstock 4, a rotating device 6 is fixedly arranged on the moving table 5, and a lifting device 7 is rotatably connected to the rotating device 6 , a clamping device 8 is fixedly connected to the lifting device 7. When the grinding head approaches the claw plate 3 or the tailstock 4 through the lifting device 7, the lifting device 7 is activated to drive the clamping device 8 to move downward. During the downward movement, the clamping device 8 is opened and separated from the workpiece, and in the process of the grinding head approaching the claw plate 3 or the tailstock 4, it abuts against the opened clamping device 8. Under the action of the rotating device 6, the clamping device 8 is rotated to avoid the grinding head, so that the grinding head can grind the workpiece at the clamping device 8. The rotating device 6, the lifting device 7 and the clamping device 8 are all provided with two groups, which are symmetrically distributed on both sides of the workbench 2;

[0035] The clamping device 8 includes a mounting shaft 81 fixedly arranged with the lifting device 7, a clamping claw 82 is rotatably connected to the outer side of the mounting shaft 81, and a plurality of clamping claws 82 are provided, which are symmetrically and staggeredly distributed on the outer side of the mounting shaft 81, and a rotating rod 83 is fixedly connected to one side of the clamping claw 82, and two groups of rotating rods 83 are provided, which are rotationally symmetrically distributed on the mounting shaft 81, and each group of rotating rods 83 is rotatably connected to a group of mounting shafts 81, and a connecting rod 84 is slidably inserted on the mounting shaft 81, and the connecting rod 84 passes through the mounting shaft 81, and the connecting rod 84 is connected to the mounting shaft 81. Two groups of rods 84 are provided, which are symmetrically distributed on the installation shaft 81. The top of the connecting rod 84 is fixedly connected to the support shaft 85, and the side end of the support shaft 85 is fixedly connected to the pressure rod 86. The pressure rod 86 is U-shaped. Two groups of pressure rods 86 are symmetrically distributed on the installation shaft 81, and the bottom end of each group of pressure rods 86 abuts against a group of rotating rods 83. The bottom end of the support shaft 85 is fixedly connected to a spring 87. There are multiple groups of springs 87, which are evenly distributed between the two groups of pressure rods 86, and the bottom end of the spring 87 abuts against the clamping claw 82.

[0036] Among them, when the lifting device 7 drives the installation shaft 81 to move downward, since the workpiece is fixed by the claw plate 3 and the tailstock 4, it will not move with the lifting device 7, so that the top of the workpiece abuts against the inner top of the clamping claw 82, and under the action of the abutment, the clamping claw 82 rotates around the installation shaft 81, and during the rotation process, it drives the rotating rod 83 to rotate synchronously, so that the rotating rod 83 pushes the pressure rod 86 to move upward until the clamping claw 82 is fully opened, and during the downward movement, it is separated from the workpiece, thereby releasing the connection between the clamping device 8 and the workpiece.

[0037] Reference Figures 4 to 6 A push rod 51 is fixedly connected to one end of the movable platform 5. Two groups of push rods 51 are symmetrically distributed on both sides of the movable platform 5. The spacing between the two groups of push rods 51 is greater than the width of the grinding head 1 9 and the grinding head 2 10. During the processing, one group of push rods 51 abuts against the grinding head 1 9 or the grinding head 2 10, so that the two groups of clamping devices 8 are always kept on both sides of the grinding head 1 9 and the grinding head 2 10. An avoidance groove 52 is opened at the top of the movable platform 5. The avoidance groove 52 is fan-shaped, and its diameter is greater than the clamping device 8 in the open state. Two groups of avoidance grooves 52 are symmetrically distributed on the top of the movable platform 5. A group of slots 1 54 is provided at the side end of each group of avoidance grooves 52, and the two groups of slots 1 54 are rotationally symmetrically distributed. A slot 2 53 is provided at the side end of the avoidance grooves 52, and the two groups of slots 1 54 are connected with the slots 2 53, and the slots 2 53 are connected with the two groups of avoidance grooves 52. When the grinding head 1 9 or the grinding head 2 10 grinds the workpiece, a group of push rods 51 will abut against the outer shell of the grinding head 1 9 or the grinding head 2 10. Through this abutment, the movable platform 5 and related components are driven to move according to the requirements of the grinding process, so that the clamping device 8 on the movable platform 5 is always on both sides of the grinding area.

[0038] The above scheme is adopted: through the abutment relationship between the push rod 51 and the grinding head, during the grinding process, the two sets of clamping devices 8 are always maintained on both sides of the grinding head 1 9 and the grinding head 2 10. This relative position maintenance helps to accurately control the position and range of grinding, ensuring that the workpiece is processed according to the preset grinding path, thereby improving the position accuracy of the grinding process and ensuring the processing quality of the workpiece.

[0039] Reference Figure 8 The rotating device 6 includes a connecting block 61 fixedly connected to the bottom end of the avoidance groove 52, a mounting box 62 is fixedly connected to the top of the connecting block 61, an elastic band 63 is fixedly connected to the inner side of the mounting box 62, and a mounting frame 64 is rotatably connected to the top of the mounting box 62. The mounting frame 64 is U-shaped, and a clamping column 65 is fixedly connected to the bottom end of the mounting frame 64. The clamping column 65 is provided with eight groups, which are symmetrically distributed at the bottom end of the mounting frame 64, and the elastic band 63 is located between the symmetrically distributed clamping columns 65, and the clamping columns 65 abut against the elastic band 63. When the grinding head approaches the claw plate 3 or the tailstock 4, a series of actions are triggered. First, the lifting device 7 drives the clamping device 8 to move down and open, and disengage from the workpiece, and then, The grinding head abuts against the opened clamping device 8 during the approaching process. At this time, under the action of the rotating device 6, the mounting frame 64 drives the clamping device 8 connected thereto to rotate. The eight groups of clamping columns 65 fixed at the bottom end of the mounting frame 64 are symmetrically distributed and abut against the elastic band 63. When the mounting frame 64 rotates, the clamping columns 65 rotate accordingly to bend and deform the elastic band 63 until the clamping device 8 completely avoids the moving grinding head 1 9 or grinding head 2 10, so that the grinding head can grind the workpiece at both ends. When the outer shell of the grinding head 1 9 or grinding head 2 10 no longer abuts against the opened clamping claw 82, under the action of the elastic band 63, the support member 71 rotates in the opposite direction and resets.

[0040] The above scheme is adopted: through the coordinated work of the rotating device 6 and other components, the automatic avoidance and resetting of the clamping device 8 during the grinding process is realized. When the grinding head approaches the two ends of the workpiece, the clamping device 8 can quickly rotate to avoid, ensuring that the grinding head passes smoothly and grinds the two ends of the workpiece. When the grinding head leaves the two ends, the clamping device 8 can automatically reset under the action of springs and other components to re-clamp the workpiece. This automatic avoidance and resetting function ensures the continuity of the grinder during the processing, reduces the number of manual interventions, and improves processing efficiency.

[0041] Reference Figures 4 to 9The lifting device 7 includes a support member 71 fixedly connected to the top of the mounting frame 64. The support member 71 is U-shaped. The support member 71 is provided with two groups symmetrically distributed at the top of the mounting frame 64. A top plate 72 is inserted into the support member 71. The top plate 72 is composed of a group of trapezoidal plates and a group of straight plates with a width greater than the support member 71. The trapezoidal plates and the straight plates are vertically distributed, and the trapezoidal plates penetrate the U-shaped support member 71. The inclined surface of the trapezoidal plate abuts against the inner top of the U-shaped support member 71. The straight plate in the top plate 72 is adapted to the slot 2 53. The top plate One end of the top plate 72 is fixedly connected to a spring 2 73, and the spring 2 73 is provided with multiple groups, which are evenly distributed on one side of the trapezoidal plate in the top plate 72. One end of the spring 2 73 is fixedly connected to the inner wall of the slot 1 54, and one end of the claw plate 3 is fixedly connected to a push rod 74, which is U-shaped, and the width of the empty slot of the U-shaped push rod 74 is greater than the width of the support member 71, and the width of the U-shaped push rod 74 is the same as the width of the straight plate in the top plate 72. The two groups of push rods 74 are fixedly connected to the claw plate 3 and the tailstock 4 respectively. The support member 71 includes a top fixed to the mounting frame 64. The telescopic rod 711 is fixedly connected, and two groups of telescopic rods 711 are provided, which are symmetrically distributed at the top of the mounting frame 64. The top of the telescopic rod 711 is fixedly connected with a support block 712, and the inclined surface of the trapezoidal plate abuts against the bottom end of the support block 712. The support block 712 is rotatably connected to the mounting shaft 81. A spring 3 713 is provided in the telescopic rod 711, and the two ends of the spring 3 713 are respectively fixedly connected to the top and bottom ends of the telescopic rod 711. When the grinding head approaches the claw plate 3 or the tailstock 4, the push rod 74 on the claw plate 3 or the tailstock 4 will be in contact with the top plate 72. The straight plate abuts against and pushes the top plate 72 to move in the direction of the slot 1 54. During the movement, the spring 2 73 on the top plate 72 is compressed until the trapezoidal plate and the straight plate in the top plate 72 are respectively inserted into the slot 1 54 and the slot 2 53. During the insertion of the trapezoidal plate in the top plate 72 into the slot 1 54, due to the effect of the hypotenuse in the trapezoidal plate, the telescopic rod 711 contracts under the action of the spring 3 713. During the contraction process, the support block 712 always abuts against the hypotenuse in the trapezoidal plate and gradually moves downward under the guidance of the hypotenuse.

[0042] The above scheme is adopted: when the grinding head approaches the two ends of the workpiece, the lifting device 7 automatically drives the clamping device 8 to move down and open, so that the workpiece and the clamping device 8 are separated, thereby providing avoidance space for the grinding head. When the grinding head leaves the two ends, the lifting device 7 can automatically drive the clamping device 8 to reset and re-clamp the workpiece. This automatic avoidance and reset function greatly improves the degree of automation of the grinding machine processing, reduces the number of manual interventions, reduces the labor intensity of the operator, and also improves the processing efficiency and processing accuracy.

[0043] The working principle of the present invention is as follows: when in use, the workpiece is first placed in the clamping claw 82 in the open state, and the support shaft 85 is pressed. When the support shaft 85 moves downward, the rotating rod 83 is pushed to rotate, thereby driving the clamping claw 82 to rotate, so that the clamping claw 82 switches to closed rotation, clamps and fixes the workpiece, and then fixes the workpiece through the claw plate 3 and the tailstock 4. After that, the equipment is started, and the numerical control system in the equipment drives the claw plate 3 and the tailstock 4 to drive the workpiece to move on the workbench 2 to install a preset grinding path, and the grinding head 1 9 and the grinding head 2 10 are installed at a preset feed speed to grind the workpiece. During the grinding process, the outer shell of the grinding head 1 9 or the grinding head 2 10 abuts against a group of push rods 51 to ensure that the grinding head 1 9 or the grinding head 2 1 When grinding the workpiece, the clamping devices 8 on both sides support the workpiece to prevent the shaft workpiece from being deformed due to the radial and axial pressures generated by the grinding wheel in the grinding head during high-speed rotation. When the grinding head is close to the claw plate 3 or the tailstock 4, the push rod 74 on the claw plate 3 or the tailstock 4 will abut against the straight plate in the top plate 72 and push the top plate 72 to move in the direction of the slot 1 54. During the movement, the spring 2 73 on the top plate 72 is compressed until the trapezoidal plate and the straight plate in the top plate 72 are respectively inserted into the slot 1 54 and the slot 2 53. During the process of the trapezoidal plate in the top plate 72 being inserted into the slot 1 54 and under the action of the bevel in the trapezoidal plate, the telescopic rod 711 is contracted under the action of the spring 3 713, so that the support block 712 starts to move. Finally, it abuts against the bevel in the trapezoidal plate and gradually moves downward under the guidance of the bevel. During the downward movement, since the workpiece is fixed by the claw plate 3 and the tailstock 4, it will not move with the lifting device 7, so that the top of the workpiece abuts against the top inside the clamping claw 82, and under the action of the abutment, the clamping claw 82 rotates around the installation axis 81, and in the rotation process, drives the rotating rod 83 to rotate synchronously, so that the rotating rod 83 pushes the pressing rod 86 to move upward until the clamping claw 82 is fully opened, and in the downward movement process, it is separated from the workpiece, thereby releasing the connection between the clamping device 8 and the workpiece. At this time, as the claw plate 3 and the tailstock 4 drive the workpiece to continue to move along the preset grinding path installed on the workbench 2, the outer shell of the grinding head 1 9 or the grinding head 2 10 abuts against the opened clamping claw 82, and Under the abutment, the support member 71 rotates, and during the rotation, the clamping column 65 rotates with it, thereby bending and deforming the elastic band 63 until the clamping claw 82 completely avoids the moving grinding head 9 or grinding head 2 10, so that the grinding head 1 9 or grinding head 2 10 grinds the workpieces at both ends, avoiding the inability to grind the two ends of the workpiece due to the existence of the clamping device 8. Then the grinding head 1 9 or grinding head 2 10 moves to the other side. When the grinding head 1 9 or grinding head 2 10 leaves the two ends and as the movement proceeds, when the outer shell of the grinding head 1 9 or grinding head 2 10 no longer abuts against the opened clamping claw 82, under the action of the elastic band 63, the support member 71 rotates in the opposite direction and resets. As the movement continues,The push rod 74 is no longer in contact with the straight plate in the top plate 72, so that the spring 73 returns to its original length and pushes the top plate 72 to be reinserted into the support member 71, so that the telescopic rod 711 extends under the abutment of the inclined surface of the trapezoidal plate in the top plate 72, until the support shaft 85 in the clamping device 8 in the open state abuts against the workpiece again, and under the abutment, the support shaft 85 moves downward, thereby driving the pressure rod 86 to drive the rotating rod 83 to rotate, so that the clamping claw 82 rotates and the workpiece is clamped again; the clamping device 8 can be quickly driven to rotate and avoid through the rotating device 6, which avoids the obstruction of the grinding head by the clamping device 8, allowing the grinding head to smoothly reach both ends of the workpiece for grinding. After the grinding head completes the grinding of this area and leaves, the rotating device 6 uses the elastic band 63 to The clamping device 8 is automatically reset by the action of other components. In this way, during the entire grinding process, the rotating device 6 ensures the continuity and smoothness of the grinding operation by automatically controlling the avoidance and reset of the clamping device 8, improves the working efficiency of the grinder, effectively avoids safety accidents caused by improper operation of the operator, provides a safer and more reliable working environment for the operator, reduces the safety risks and operating costs of the enterprise, and the lifting device 7 can automatically sense the approach of the grinding head and respond quickly. It will drive the clamping device 8 to move down smoothly and accurately, and at the same time make the clamping claws 82 open in a predetermined manner, thereby achieving smooth separation from the workpiece. This process does not require cumbersome manual operation and intervention, which greatly improves the grinding process. The machine has a high degree of automation in this key processing link. When the grinding head completes the grinding of both ends of the workpiece and leaves, the lifting device 7 can automatically and accurately drive the clamping device 8 to reset, so that it can firmly clamp the workpiece again, which not only effectively reduces the errors and uncertainties that may be caused by manual operation, but also greatly improves the overall efficiency and quality of the grinding machine processing. Through the multiple groups of symmetrical and staggered clamping claws 82 in the clamping device 8, the workpiece can be firmly clamped in all directions and at multiple angles, so that the various external forces applied to the workpiece during the grinding process can be effectively dispersed to each clamping claw 82, whether it is the strong centrifugal force generated by the grinding head when rotating at high speed, or the friction between the workpiece and the grinding head during the grinding process. The clamping device 8 can evenly distribute the generated tangential force and axial force to each clamping claw 82, thereby ensuring that the workpiece always maintains a stable position and state during the entire grinding process, effectively preventing the workpiece from being displaced or deformed due to external forces, and providing a solid guarantee for the high precision and high quality of the grinding process. The clamping device 8 can quickly and accurately make corresponding action adjustments under the precise drive of the lifting device 7. It will automatically move down and open the clamping claws 82, so that the workpiece and the clamping device 8 can be smoothly separated, thereby providing sufficient avoidance space for the grinding head when it approaches the two ends of the workpiece, ensuring that the grinding head can smoothly grind the two ends of the workpiece. When the grinding head completes the grinding of the two ends of the workpiece and leaves,The clamping device 8 can automatically and accurately reset and re-clamp the workpiece under the drive of the lifting device 7, so that the workpiece can continue to stably accept subsequent grinding processing, thereby effectively improving the versatility and processing efficiency of the grinder.

[0044] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A through-type double-axis grinding machine, comprising: A machine body (1), wherein a workbench (2) is arranged on the machine body (1), a claw plate (3) is slidably arranged on the workbench (2), a tailstock (4) is slidably arranged on the workbench (2), the claw plate (3) and the tailstock (4) are symmetrically arranged on the workbench (2), a grinding head 1 (9) and a grinding head 2 (10) are arranged on one side of the workbench (2), and it is characterized in that a moving platform (5) is slidably arranged on the workbench (2), the moving platform (5) is arranged between the claw plate (3) and the tailstock (4), and the moving platform (5) is arranged between the claw plate (3) and the tailstock (4). A rotating device (6) is fixedly arranged on the movable table (5), and a lifting device (7) is rotatably connected to the rotating device (6), and a clamping device (8) is fixedly connected to the lifting device (7). When the grinding head approaches the claw plate (3) or the tail stock (4) through the lifting device (7), the lifting device (7) is activated to drive the clamping device (8) to move downward. During the downward movement, the clamping device (8) is opened and separated from the workpiece. When the grinding head approaches the claw plate (3) or the tail stock (4), the clamping device (8) abuts against the opened clamping device (8), and under the action of the rotating device (6), the clamping device (8) rotates to avoid the grinding head. The clamping device (8) comprises a mounting shaft (81) fixedly arranged with the lifting device (7); a clamping claw (82) is rotatably connected to the outer side of the mounting shaft (81); a rotating rod (83) is fixedly connected to one side of the clamping claw (82); and the rotating rod (83) is rotatably connected to the mounting shaft (81); a connecting rod (84) is slidably inserted on the mounting shaft (81); a supporting shaft (85) is fixedly connected to the top of the connecting rod (84); a pressure rod (86) is fixedly connected to the side end of the supporting shaft (85); and the bottom end of the pressure rod (86) abuts against the rotating rod (83); a spring (87) is fixedly connected to the bottom end of the supporting shaft (85); and the bottom end of the spring (87) abuts against the clamping claw (82); When the lifting device (7) drives the installation shaft (81) to move downward, the top of the workpiece abuts against the inner top of the clamping claw (82), and under the action of the abutment, the clamping claw (82) rotates around the installation shaft (81), and during the rotation process, the rotating rod (83) is driven to rotate synchronously, so that the rotating rod (83) pushes the pressure rod (86) to move upward until the clamping claw (82) is fully opened and separated from the workpiece during the downward movement.

2. A through-type double-axis grinding machine according to claim 1, characterized in that: One end of the movable platform (5) is fixedly connected to a push rod (51), and the push rod (51) abuts against the outer shell of the grinding head (9).

3. A through-type double-axis grinding machine according to claim 2, characterized in that: The top of the mobile platform (5) is provided with an avoidance groove (52), the side end of the avoidance groove (52) is provided with a slot one (54), the side end of the avoidance groove (52) is provided with a slot two (53), and the slot one (54) is connected with the slot two (53).

4. A through-type double-axis grinding machine according to claim 3, characterized in that: The rotating device (6) comprises a connecting block (61) fixedly connected to the bottom end of the avoidance groove (52), a mounting box (62) fixedly connected to the top of the connecting block (61), and an elastic band (63) fixedly connected to the inside of the mounting box (62).

5. A through-type double-axis grinding machine according to claim 4, characterized in that: The top end of the installation box (62) is rotatably connected to a mounting frame (64), and the bottom end of the installation frame (64) is fixedly connected to a clamping column (65), and the clamping column (65) abuts against the elastic band (63).

6. A through-type double-axis grinding machine according to claim 5, characterized in that: The lifting device (7) comprises a support member (71) fixedly connected to the top end of the mounting frame (64), a top plate (72) being inserted into the support member (71), and the top plate (72) is adapted to slot one (54).

7. A through-type double-axis grinding machine according to claim 6, characterized in that: One end of the top plate (72) is fixedly connected to a spring 2 (73), one end of the spring 2 (73) is fixedly connected to the inner wall of the slot 1 (54), and one end of the claw plate (3) is fixedly connected to a push rod (74).

8. A through-type double-axis grinding machine according to claim 7, characterized in that: The support member (71) comprises a telescopic rod (711) fixedly connected to the top of the mounting frame (64); the top of the telescopic rod (711) is fixedly connected to a support block (712); the support block (712) is rotatably connected to the mounting shaft (81); a spring three (713) is arranged inside the telescopic rod (711), and the two ends of the spring three (713) are respectively fixedly connected to the top and bottom ends of the telescopic rod (711).

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