A grinding device for CNC machine tools

Abstract

The present invention discloses a grinding device for a numerically controlled machine tool, and specifically relates to the technical field of machining machine tools, including a machine platform, wherein the front end of the machine platform is fixedly connected to a control console, the upper end of the machine platform is fixedly connected to a shielding box, the upper end of the machine platform located in the inner cavity of the shielding box is fixedly installed with a power saw, the upper end of the machine platform is provided with a workpiece conveying structure, and the right part of the upper end of the machine platform is provided with a grinding structure connected to the power saw through a belt drive. The grinding device for a numerically controlled machine tool described in the present invention can use the cooperation of a limit block and a fixed component to separate the fixed components on both sides after the power saw has completed cutting the workpiece, and simultaneously use the cooperation of a linkage component and a fixed component to drive the grinding component to approach the workpiece, and grind the cut surface of the workpiece, and remove burrs, cut marks and other defects on the cut surface that affect the appearance and quality through grinding, thereby improving product quality and reducing defects caused by cutting.

Description

Technical Field

[0001] The invention relates to the technical field of machining machine tools, and in particular to a grinding device for numerically controlled machine tools. Background Art

[0002] CNC machine tools play an important role in modern manufacturing. As a key component of CNC machine tools, the performance of grinding devices directly affects the processing quality and efficiency. With the continuous development of industrial production, the requirements for CNC machine tool grinding devices are getting higher and higher. Not only are they required to achieve high-precision processing, but they are also required to have a good degree of automation and easy operation.

[0003] Chinese patent announcement number CN212095230U discloses a grinding device for a CNC machine tool, including a CNC drilling machine, a T-slot platform is provided at the bottom of the drill bit of the CNC drilling machine, a mounting seat is provided at the top of the T-slot platform, a mounting shaft is provided on one side of the mounting seat, a running motor is provided at one end of the mounting shaft, a circumferential limit assembly is provided at the other end of the mounting shaft, a stripping plate is provided on the outer side of the mounting shaft, a roller groove is provided on one side of the top of the stripping plate, a roller is provided in each of the roller grooves, a drilling fixture is provided at one end of the stripping plate, an inverted slide rail is provided on one side of the stripping plate, a slider is provided on one side of the inverted slide rail, and a telescopic rod is provided on one side of the mounting seat.

[0004] However, these existing technologies still have some defects in practical applications:

[0005] During the machining process, especially for some workpieces with complex shapes or small sizes, the clamping mechanism of the existing grinding device often cannot provide sufficient clamping force and has poor flexibility, resulting in displacement or vibration of the workpiece during grinding, affecting the machining accuracy;

[0006] In addition, many grinding devices still require manual operation in the workpiece clamping, grinding parameter adjustment and post-grinding cleaning, which not only reduces production efficiency, but also increases labor costs and the probability of errors;

[0007] When performing grinding processing, it is necessary to switch workstations. The design of the workstation switching mechanism of the existing device is not reasonable. Problems such as jamming and misalignment are prone to occur during the switching process, affecting the continuity and stability of the processing. Summary of the invention

[0008] The main purpose of the present invention is to provide a grinding device for a CNC machine tool, which can effectively solve the problems involved in the above-mentioned background technology.

[0009] To achieve the above object, the technical solution adopted by the present invention is:

[0010] A grinding device for a CNC machine tool comprises a machine platform, the front end of the machine platform is fixedly connected to a control console, the upper end of the machine platform is fixedly connected to a shielding box, the upper end of the machine platform located in the inner cavity of the shielding box is fixedly installed with a power saw, the upper end of the machine platform is provided with a workpiece conveying structure, and the right part of the upper end of the machine platform is provided with a grinding structure connected to the power saw through a belt drive.

[0011] Preferably, the workpiece conveying structure includes guide components symmetrically arranged at the front and rear ends of the upper end of the machine platform, and the inner surfaces of the two guide components are respectively provided with fixing components, and the two fixing components are symmetrically distributed;

[0012] The guide assembly includes a T-shaped slide groove opened at the upper end of the machine platform, and the part of the machine platform inner cavity located at the lower side of the T-shaped slide groove is provided with an L-shaped guide groove connected to the inner cavity of the T-shaped slide groove, the left part of the L-shaped guide groove is an inclined track and the starting point height is higher than the end point height, and the right part of the L-shaped guide groove is a horizontal track connected to the end point of the left part.

[0013] Preferably, the fixing assembly comprises a T-shaped slider slidably connected to the inner surface of the T-shaped slide groove, the inner surface of the L-shaped guide groove is slidably connected to a limiting wheel, the upper end of the T-shaped slider is slidably connected to a base, a clamping assembly is provided on the inner surface of the base, and an arc angle is provided at one end of the base close to the power saw.

[0014] Preferably, a traction motor is fixedly installed at the front end of the machine, and the output end of the traction motor is fixedly connected to a winding roller rotatably connected to the inner cavity of the machine. The outer surface of the winding roller is symmetrically wound with a traction rope front and back. The traction rope is ring-shaped and its two side ports are fixedly connected to the two end faces of adjacent T-shaped sliders.

[0015] Preferably, a limiting groove is provided at the lower end of the base, and a compression spring fixedly connected to the T-shaped slider is fixedly connected to the inner surface of the limiting groove on one side close to the power saw, and the inner surface of the base is slidably connected to the clamping assembly.

[0016] Preferably, the clamping assembly includes a T-shaped plate that is slidably connected to the inner surface of the base, a straight groove is provided at the lower end of the T-shaped plate corresponding to the upper part of the T-shaped slider, the upper end of the T-shaped plate is fixedly connected to the vertical plates in a triangular distribution, the upper ends of the three vertical plates all penetrate the inner surface of the base, extend to the upper end of the base and are rotatably connected to the clamping plate, and the lower end of the clamping plate is fixedly connected to a magnetic block that attracts the adjacent vertical plates.

[0017] Preferably, a connecting rod 1 is rotatably connected to the middle part of the outer surface of the limiting wheel, the upper end of the connecting rod 1 passes through the lower end of the T-shaped slider, extends to the inner cavity of the T-shaped slider and is fixedly connected to a traction spring 1, the upper end of the traction spring 1 is fixedly connected to a connecting rod 2, the upper end of the connecting rod 2 passes through the inner cavity of the T-shaped slider, extends to the inner cavity of the base and is slidably connected to the inner surface of the straight groove.

[0018] Preferably, the grinding structure includes a second bearing bracket fixedly connected to the middle part of the upper end of the machine platform, the inner surface of the second bearing bracket is rotatably connected to a transmission shaft connected to the power saw through a belt drive, the outer surface of the transmission shaft is slidably connected to grinding components on both sides, the upper end of the machine platform is symmetrically fixedly connected to limit blocks corresponding to the arc angular positions on the same side, and the inner surfaces of the T-shaped slide grooves on both sides are provided with linkage components fixedly connected to the grinding components.

[0019] Preferably, the grinding assembly includes a bearing bracket 1 fixedly connected to the upper end of the machine platform and a bracket slide groove opened at the upper end of the machine platform between bearing bracket 1 and bearing bracket 2, the inner surface of the bearing bracket 1 is rotatably connected to a connecting shaft slidably connected to the outer surface of the transmission shaft, the outer surface of the connecting shaft is rotatably connected to a movable plate slidably connected to the inner surface of the bracket slide groove, the end of the movable plate close to the bearing bracket 1 is rotatably connected to a compression spring 2 fixedly connected to the bearing bracket 1, the end of the connecting shaft away from the bearing bracket 2 is fixedly connected to a grinding disk, and the end of the movable plate away from the bearing bracket 2 is fixedly connected to the linkage assembly.

[0020] Preferably, the linkage assembly includes a vertical slide groove opened on the bottom wall of the T-shaped slide groove inner cavity near the second side of the bearing bracket, the inner surface of the vertical slide groove is slidably connected to a column, the outer surface of the column is fixedly connected to a cable 1, the end of the cable 1 away from the column is fixedly connected to a traction spring 2, and the end of the traction spring 2 away from the cable 1 is fixedly connected to a cable 2 fixedly connected to the movable plate on the same side.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention utilizes the cooperation of the limit block and the fixed component to enable the fixed components on both sides to drive the workpieces to separate after the power saw has completed cutting the workpiece, and simultaneously utilizes the cooperation of the linkage component and the fixed component to drive the grinding component to approach the workpiece and grind the cut surface of the workpiece, so that burrs, cut marks and other defects on the cut surface that affect the appearance and quality are removed by grinding, thereby improving product quality and reducing defects caused by cutting.

[0023] The present invention drives the fixing component to move on the upper part of the machine platform through the guiding component, thereby driving the workpiece to move on the upper part of the machine platform, so that it passes through the working areas of the power saw and the grinding structure in sequence, and then performs a combined cutting and grinding process on it, thereby reducing related working steps, simplifying the production process, and thus improving production efficiency.

[0024] The present invention drives the T-shaped slider to slide in the T-shaped slide groove through the cooperation of the traction motor, the winding roller and the traction rope, and drives the base and the workpiece fixed by the clamping assembly on its upper part to move on the upper part of the machine through the cooperation of the T-shaped slider and the base, and then transports the workpiece to different workstations for processing, thereby realizing automatic switching of multiple workstations, reducing manual interference and improving processing efficiency.

[0025] The present invention drives the connecting rod 1 to move downward through the cooperation of the limiting wheel and the L-shaped guide groove, and drives the clamping assembly to move downward to clamp the workpiece through the traction action of the connecting rod 1 and the traction spring 1, and uses the action of the clamping plate to press the workpiece above the base, so as to avoid the workpiece vibrating during the cutting process and causing the cut surface to be skewed, thereby affecting the quality of the workpiece. At the same time, the cooperation of the arc angle and the limiting block drives the bases on both sides and the workpieces on their upper sides cut by the power saw to move away from each other, so as to separate the cut surfaces of the workpieces on both sides, which is convenient for subsequent grinding processing.

[0026] The present invention utilizes the cooperation of the linkage assembly and the T-shaped slider to drive the movable plate to slide along the bracket slide groove toward the workpiece through the traction effect of cable 1, traction spring 2 and cable 2 on the movable plate, and makes the grinding disk contact with the workpiece cross section, thereby grinding the workpiece cross section, and after the T-shaped slider is reset, the compression spring 2 is used to drive the column to reset, thereby realizing combined processing of the workpiece, grinding burrs, knife marks and other defects on the cut surface, reducing the processing marks on the cut surface, and thus improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the internal structure of the shielding box of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the grinding structure of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the guide assembly of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the fixing assembly of the present invention;

[0032] Figure 6 It is a schematic diagram of the cross-sectional structure of the base of the present invention;

[0033] Figure 7 It is a schematic structural diagram of the clamping assembly of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the linkage assembly of the present invention;

[0035] Fig. 9It is a schematic structural diagram of the grinding assembly of the present invention;

[0036] Fig.10 It is a left-side structural schematic diagram of the grinding assembly of the present invention.

[0037] In the figure: 1, machine; 2, control console; 3, workpiece conveying structure; 31, fixing assembly; 311, T-shaped slider; 3111, compression spring 1; 312, base; 3121, limiting groove; 313, limiting wheel; 3131, connecting rod 1; 3132, traction spring 1; 3133, connecting rod 2; 314, clamping assembly; 3141, T-shaped plate; 3142, straight groove; 3143, vertical plate; 3144, clamping plate; 3145, magnetic block; 315, arc angle; 32, guide assembly; 321, T-shaped slide groove; 32 2. L-shaped guide groove; 323. traction rope; 324. winding roller; 325. traction motor; 4. shielding box; 5. grinding structure; 51. limit block; 52. grinding assembly; 521. grinding disc; 522. bearing bracket one; 523. compression spring two; 524. movable plate; 525. connecting shaft; 526. bracket slide groove; 53. bearing bracket two; 54. transmission shaft; 55. linkage assembly; 551. column; 552. vertical slide groove; 553. cable one; 554. traction spring two; 555. cable two; 6. power saw. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] Embodiment 1, as Figure 1 and Figure 2 As shown, a grinding device for a CNC machine tool includes a machine table 1, a control console 2 is fixedly connected to the front end of the machine table 1, a shielding box 4 is fixedly connected to the upper end of the machine table 1, a power saw 6 is fixedly installed on the part of the upper end of the machine table 1 located in the inner cavity of the shielding box 4, a workpiece conveying structure 3 is arranged on the upper end of the machine table 1, and a grinding structure 5 connected to the power saw 6 through a belt drive is arranged on the right part of the upper end of the machine table 1.

[0040] It should be noted that the console 2 is a conventional control device, which has been widely used in the prior art. In the present invention, it is only used to realize the function of starting and stopping the electrical equipment in the control device, and its internal structure, operating principle, wiring, and control method are not described in detail.

[0041] In addition, the above-mentioned power saw 6 is a cutting saw integrated with a driving motor, which is a commonly used device in traditional cutting machine tools. In the present invention, it is only used to realize the cutting function, and its specific installation method, driving method and detailed structure are no longer displayed or elaborated.

[0042] Further, in order to realize the clamping of the workpiece and the transportation between each station, refer to Figure 2 The workpiece conveying structure 3 includes guide components 32 symmetrically opened at the front and rear ends of the upper end of the machine platform 1. The inner surfaces of the two guide components 32 are respectively provided with fixing components 31, and the two fixing components 31 are symmetrically distributed.

[0043] The guide component 32 is used to drive and guide the fixed component 31 to move on the upper part of the machine table 1, thereby driving the workpiece to move on the upper part of the machine table 1, so that it passes through the working areas of the power saw 6 and the grinding structure 5 in turn, and then performs a combined cutting and grinding process on it, reducing related working procedures, simplifying the production process, and thus improving production efficiency.

[0044] Further, to achieve grinding of the cut surface of the workpiece, refer to Figure 3 The grinding structure 5 includes a bearing bracket 53 fixedly connected to the middle part of the upper end of the machine table 1, and the inner surface of the bearing bracket 53 is rotatably connected to a transmission shaft 54 ​​connected to the power saw 6 through a belt drive, and the outer surface of the transmission shaft 54 ​​is slidably connected to grinding components 52 on both sides. The upper end of the machine table 1 is symmetrically fixedly connected to limit blocks 51 corresponding to the positions of the arc angles 315 on the same side, and the inner surfaces of the T-shaped slide grooves 321 on both sides are provided with linkage components 55 fixedly connected to the grinding components 52.

[0045] By utilizing the cooperation between the limit block 51 and the fixed component 31, after the power saw 6 completes the cutting of the workpiece, the fixed components 31 on both sides can drive the workpiece to separate, and simultaneously utilize the cooperation between the linkage component 55 and the fixed component 31 to drive the grinding component 52 to approach the workpiece and grind the cut surface of the workpiece, and remove the burrs, cut marks and other defects on the cut surface that affect the appearance and quality through grinding, thereby improving product quality and reducing defects caused by cutting.

[0046] Embodiment 2. Based on embodiment 1, this embodiment drives the T-shaped slider 311 to slide in the T-shaped slide groove 321 through the cooperation of the traction motor 325, the winding roller 324 and the traction rope 323, and drives the base 312 and the workpiece fixed by the clamping assembly 314 on the upper part of the machine 1 through the cooperation of the T-shaped slider 311 and the base 312, and then transports the workpiece to different workstations for processing, thereby realizing automatic switching of multiple workstations, reducing manual intervention, and improving processing efficiency.

[0047] Specifically, in order to clamp and fix the workpiece during the processing, refer to Figure 4 and Figure 5The guide assembly 32 includes a T-shaped slide groove 321 opened at the upper end of the machine 1, and the inner cavity of the machine 1 located at the lower side of the T-shaped slide groove 321 is provided with an L-shaped guide groove 322 connected to the inner cavity of the T-shaped slide groove 321. The left part of the L-shaped guide groove 322 is an inclined track and the starting height is higher than the end height. The right part of the L-shaped guide groove 322 is a horizontal track connected to the end point of the left part.

[0048] Further, in order to realize the driving of the T-shaped slider 311 to drive the workpiece to move on the upper part of the machine table 1, refer to Figure 4 A traction motor 325 is fixedly installed at the front end of the machine 1, and a winding roller 324 rotatably connected to the inner cavity of the machine 1 is fixedly connected to the output end of the traction motor 325. A traction rope 323 is symmetrically wound around the outer surface of the winding roller 324. The traction rope 323 is annular and its two side ports are fixedly connected to the two end surfaces of the adjacent T-shaped slider 311.

[0049] Further, in order to cooperate with the stop block 51 to separate the two workpieces during the grinding process, refer to Figure 5 The fixing assembly 31 includes a T-shaped slider 311 slidably connected to the inner surface of the T-shaped slide groove 321, a limiting wheel 313 slidably connected to the inner surface of the L-shaped guide groove 322, a base 312 slidably connected to the upper end of the T-shaped slider 311, a clamping assembly 314 is provided on the inner surface of the base 312, and an arc corner 315 is provided at one end of the base 312 close to the power saw 6.

[0050] The T-shaped slide groove 321 is used to cooperate with the winding roller 324 and the traction motor 325 to guide the fixing component 31 to move left and right with the workpiece on the upper part of the machine table 1. Synchronously, the L-shaped guide groove 322 and the limiting wheel 313 can drive the clamping component 314 to move downward, thereby clamping the workpiece above the base 312.

[0051] Specifically, during the operation of this embodiment, first, the traction motor 325 can drive the winding roller 324 to rotate. Since the traction rope 323 is wound around the winding roller 324, the traction rope 323 will move during the rotation of the winding roller 324, and thereby the T-shaped slider 311 is pulled to slide in the T-shaped slide groove 321. Synchronously, due to the winding of the traction rope 323, the winding roller 324 can use the traction rope 323 to pull the T-shaped slider 311 to move in the case of forward and reverse rotation.

[0052] Furthermore, when the T-shaped slider 311 slides along the T-shaped groove 321, it will drive the workpiece to move on the upper part of the machine table 1 through the base 312 and the clamping assembly 314 on its upper part, and thereby drive the workpiece to enter the working area of ​​the grinding structure 5 and the power saw 6 in turn, thereby realizing the combined processing of cutting and grinding.

[0053] Embodiment 3: Based on embodiment 2, this embodiment further drives the connecting rod 3131 to move downward through the cooperation of the limiting wheel 313 and the L-shaped guide groove 322, and drives the clamping assembly 314 to move downward to clamp the workpiece through the traction of the connecting rod 3131 and the traction spring 3132, and uses the clamping plate 3144 to press the workpiece above the base 312 to avoid the workpiece vibrating during the cutting process and causing the cut surface to be skewed, thereby affecting the quality of the workpiece. At the same time, the arc angle 315 cooperates with the limiting block 51 to drive the base 312 on both sides and the workpiece cut by the power saw 6 on the upper side to move away from each other, so as to separate the cut surfaces of the workpieces on both sides and facilitate subsequent grinding processing.

[0054] Specifically, in order to drive the clamping assembly 314 to clamp and fix the workpiece, refer to Figure 6 The middle part of the outer surface of the limiting wheel 313 is rotatably connected with a connecting rod 1 3131, the upper end of the connecting rod 1 3131 passes through the lower end of the T-shaped slider 311, extends to the inner cavity of the T-shaped slider 311 and is fixedly connected with a traction spring 1 3132, the upper end of the traction spring 1 3132 is fixedly connected with a connecting rod 2 3133, the upper end of the connecting rod 2 3133 passes through the inner cavity of the T-shaped slider 311, extends to the inner cavity of the base 312 and is slidably connected with the inner surface of the straight groove 3142.

[0055] The limiting wheel 313 slides in the L-shaped guide groove 322. When the limiting wheel 313 is in the inclined part of the L-shaped guide groove 322, it will follow the movement of the T-shaped slider 311 and gradually pull the traction spring 1 3132 downward through the connecting rod 1 3131. First, the traction spring 1 3132 will drive the connecting rod 2 3133 and the clamping assembly 314 to move downward and clamp the workpiece until the limiting wheel 313 completely enters the horizontal part of the L-shaped guide groove 322. At this time, the clamping assembly 314 is at the lower side of the inner cavity of the base 312, and the traction spring 1 3132 is in a stretched state, continuously providing downward traction to the connecting rod 2 3133 and the clamping assembly 314 above it, thereby continuously clamping the workpiece during the cutting and grinding process.

[0056] Further, in order to cooperate with the limiting block 51 to drive the base 312 to move, thereby separating the workpieces on both sides, refer to Figure 6 A limiting groove 3121 is provided at the lower end of the base 312, and a compression spring 3111 fixedly connected to the T-shaped slider 311 is fixedly connected to the inner surface of the limiting groove 3121 near the power saw 6, and the inner surface of the base 312 is slidably connected to the clamping assembly 314.

[0057] After the arc angle 315 contacts the grinding assembly 52, it will be pressed toward the side away from the power saw 6 by the grinding assembly 52. ​​At this time, the compression spring 1 3111 is compressed, and the base 312 slides toward the T-shaped slider 311 until the grinding assembly 52 passes the arc angle 315 and fits together with the end face of the base 312, thereby realizing the separation of the cut workpiece.

[0058] Further, in order to achieve the clamping and fixing of the workpiece and facilitate the removal at the initial position, refer to Figure 6 and Figure 7 The clamping assembly 314 includes a T-shaped plate 3141 that is slidably connected to the inner surface of the base 312. A straight groove 3142 is provided at the lower end of the T-shaped plate 3141 corresponding to the upper part of the T-shaped slider 311. The upper end of the T-shaped plate 3141 is fixedly connected to a vertical plate 3143 in a triangular distribution. The upper ends of the three vertical plates 3143 all penetrate the inner surface of the base 312 and extend to the upper end of the base 312 and are rotatably connected to a clamping plate 3144. The lower end of the clamping plate 3144 is fixedly connected to a magnetic block 3145 that attracts the adjacent vertical plate 3143.

[0059] When the second connecting rod 3133 moves downward, it drives the T-shaped plate 3141 to move downward, and then drives the vertical plate 3143 and the clamping plate 3144 to move downward. When the magnetic block 3145 follows the vertical plate 3143 into the inner cavity of the base 312, the rotation of the clamping plate 3144 is restricted. At this time, the workpiece is clamped between the lower end of the clamping plate 3144 and the upper end of the base 312.

[0060] When the cutting and grinding are completed and reset, the magnetic block 3145 will keep the clamping plate 3144 in a horizontal state due to the magnetic force. However, when the operator or the external robot arm takes the material, the magnetic force of the magnetic block 3145 can be easily overcome to drive the clamping plate 3144 to rotate around the vertical plate 3143 to take out the cut material.

[0061] Embodiment 4. Based on embodiment 3, this embodiment utilizes the cooperation between the linkage assembly 55 and the T-shaped slider 311 to drive the movable plate 524 to slide along the bracket slide groove 526 toward the workpiece through the traction effect of cable 1 553, traction spring 2 554 and cable 2 555, and makes the grinding disk 521 contact with the workpiece cross section, thereby grinding the workpiece cross section, and after the T-shaped slider 311 is reset, the compression spring 2 523 is used to drive the column 551 to reset, thereby realizing combined processing of the workpiece, grinding burrs, knife marks and other defects on the cut surface, reducing the processing marks on the cut surface, and thus improving product quality.

[0062] Specifically, in order to cooperate with the movement of the T-shaped slider 311 to drive the grinding assembly 52 to approach the cutting surface of the workpiece to grind it, refer to Figure 8 and Fig. 9The linkage assembly 55 includes a vertical slide groove 552 opened on the bottom wall of the inner cavity of the T-shaped slide groove 321 near the side of the bearing bracket 2 53, the inner surface of the vertical slide groove 552 is slidably connected with a column 551, the outer surface of the column 551 is fixedly connected with a cable 1 553, the end of the cable 1 553 away from the column 551 is fixedly connected with a traction spring 2 554, and the end of the traction spring 2 554 away from the cable 1 553 is fixedly connected with a cable 2 555 fixedly connected to the movable plate 524 on the same side.

[0063] When the T-shaped slider 311 slides in the T-shaped slot 321 and passes through the vertical slot 552, it pushes the column 551 to slide along the track of the vertical slot 552, and then the grinding assembly 52 is pulled to move through the cable 1 553, the traction spring 2 554, and the cable 2 555, thereby grinding the cut surface of the workpiece;

[0064] The traction spring 554 has a certain buffer. Even if the cable 555 has pulled the grinding assembly 52 to move and contact the workpiece surface, the grinding assembly 52 cannot continue to move following the traction of the traction spring 554. At this time, the movable plate 524 can be stretched under force, thereby providing a buffer for the movement of the column 551.

[0065] Further, to achieve grinding of the workpiece, see Fig. 9 and Fig.10 The grinding assembly 52 includes a bearing bracket 1 522 fixedly connected to the upper end of the machine table 1 and a bracket slide groove 526 opened at the upper end of the machine table 1 between the bearing bracket 1 522 and the bearing bracket 2 53. The inner surface of the bearing bracket 1 522 is rotatably connected to a connecting shaft 525 slidably connected to the outer surface of the transmission shaft 54. The outer surface of the connecting shaft 525 is rotatably connected to a movable plate 524 slidably connected to the inner surface of the bracket slide groove 526. One end of the movable plate 524 close to the bearing bracket 1 522 is rotatably connected to a compression spring 2 523 fixedly connected to the bearing bracket 1 522. One end of the connecting shaft 525 away from the bearing bracket 2 53 is fixedly connected to the grinding disc 521. One end of the movable plate 524 away from the bearing bracket 2 53 is fixedly connected to the linkage assembly 55.

[0066] Cable 2 555 pulls the movable plate 524 to move in the opposite direction of bearing bracket 1 522, and the movable plate 524 acts on the connecting shaft 525 to drive the connecting shaft 525 to move synchronously, thereby pushing the grinding disc 521 toward the workpiece. At the same time, the compression spring 2 523 is compressed; when the column 551 is reset, the compression spring 2 523 can drive the movable plate 524, the connecting shaft 525 and the grinding disc 521 to reset.

[0067] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A grinding device for a CNC machine tool, comprising a machine platform, a control console is fixedly connected to the front end of the machine platform, a shielding box is fixedly connected to the upper end of the machine platform, and a power saw is fixedly installed on the part of the upper end of the machine platform located in the inner cavity of the shielding box, characterized in that: The upper end of the machine platform is provided with a workpiece conveying structure, and the right part of the upper end of the machine platform is provided with a grinding structure connected to the power saw through a belt drive; The workpiece conveying structure includes guide components symmetrically arranged at the front and rear ends of the upper end of the machine platform, and the inner surfaces of the two guide components are respectively provided with symmetrically distributed fixing components; The guide assembly includes a T-shaped slide groove opened at the upper end of the machine, and the inner cavity of the machine located at the lower side of the T-shaped slide groove is provided with an L-shaped guide groove connected to the inner cavity of the T-shaped slide groove, and the inner surface of the L-shaped guide groove is slidably connected to the limit wheel; The fixing assembly comprises a T-shaped slider slidably connected to the inner surface of the T-shaped slide groove, the upper end of the T-shaped slider is slidably connected to a base, and the inner surface of the base is provided with a clamping assembly; A limiting groove is provided at the lower end of the base, a compression spring 1 fixedly connected to the T-shaped slider is fixedly connected to the inner surface of the limiting groove on one side close to the power saw, and the inner surface of the base is slidably connected to the clamping assembly; The clamping assembly includes a T-shaped plate slidably connected to the inner surface of the base, a straight groove is provided at the lower end of the T-shaped plate at a position corresponding to the upper part of the T-shaped slider, and the upper end of the T-shaped plate is fixedly connected to the vertical plates in a triangular distribution, and the upper ends of the three vertical plates all penetrate the inner surface of the base and extend to the upper end of the base and are rotatably connected to the clamping plate, and the lower end of the clamping plate is fixedly connected to a magnetic block that attracts the adjacent vertical plates; The middle of the outer surface of the limiting wheel is rotatably connected with a connecting rod 1, the upper end of the connecting rod 1 passes through the lower end of the T-shaped slider, extends to the inner cavity of the T-shaped slider and is fixedly connected with a traction spring 1, the upper end of the traction spring 1 is fixedly connected with a connecting rod 2, the upper end of the connecting rod 2 passes through the inner cavity of the T-shaped slider, extends to the inner cavity of the base and is slidably connected to the inner surface of the straight groove; The grinding structure includes a bearing bracket 2 fixedly connected to the middle of the upper end of the machine platform, the inner surface of the bearing bracket 2 is rotatably connected to a transmission shaft connected to the power saw through a belt drive, the outer surface of the transmission shaft is slidably connected to grinding components on both sides, and the inner surfaces of the T-shaped slides on both sides are provided with linkage components fixedly connected to the grinding components; The grinding assembly comprises a bearing bracket 1 fixedly connected to the upper end of the machine platform, the inner surface of the bearing bracket 1 is rotatably connected to a connecting shaft slidably connected to the outer surface of the transmission shaft, the outer surface of the connecting shaft is rotatably connected to a movable plate slidably connected to the inner surface of the bracket slide groove, and one end of the movable plate away from the bearing bracket 2 is fixedly connected to the linkage assembly; The linkage assembly includes a vertical slide groove opened on the bottom wall of the T-shaped slide groove inner cavity near the second side of the bearing bracket, the inner surface of the vertical slide groove is slidably connected to a column, the outer surface of the column is fixedly connected to a cable 1, the end of the cable 1 away from the column is fixedly connected to a traction spring 2, and the end of the traction spring 2 away from the cable 1 is fixedly connected to a cable 2 fixedly connected to the movable plate.

2. A grinding device for a CNC machine tool according to claim 1, characterized in that: The left side portion of the L-shaped guide groove is an inclined track with a starting point height higher than an end point height, and the right side portion of the L-shaped guide groove is a horizontal track connected to the end point of the left side portion.

3. A grinding device for a CNC machine tool according to claim 1, characterized in that: An arc corner is formed at one end of the base close to the power saw.

4. A grinding device for a CNC machine tool according to claim 2, characterized in that: A traction motor is fixedly installed at the front end of the machine, and a winding roller rotatably connected to the inner cavity of the machine is fixedly connected to the output end of the traction motor. A traction rope is symmetrically wound around the outer surface of the winding roller. The traction rope is ring-shaped and both side ports are fixedly connected to the two end faces of adjacent T-shaped sliders.

5. The grinding device for a CNC machine tool according to claim 3, characterized in that: The upper end of the machine platform is symmetrically and fixedly connected with limit blocks corresponding to the arc angle positions on the same side.

6. A grinding device for a CNC machine tool according to claim 1, characterized in that: The grinding assembly also includes a bracket slide groove opened at the upper end of the machine platform between bearing bracket 1 and bearing bracket 2, the end of the movable plate close to bearing bracket 1 is rotatably connected to compression spring 2 fixedly connected to bearing bracket 1, and the end of the connecting shaft away from bearing bracket 2 is fixedly connected to a grinding disc.

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