Metal plate deep hole polishing machine tool

Abstract

The invention relates to the technical field of sheet metal machining, in particular to a sheet metal deep hole polishing machine tool which comprises a device body, a T-shaped groove workbench used for fixing a machined part is arranged in the device body, and a plurality of T-shaped grooves are formed in the T-shaped groove workbench. A magnetic attraction mechanism used for cleaning the interior of a groove of the T-shaped groove workbench is arranged in the device body and comprises a magnetic attraction plate, an empty groove is formed in the lower end of the device body, a supporting connecting plate is arranged on the upper surface of the T-shaped groove workbench, and a rectangular groove is formed in the center point of the supporting connecting plate. The magnetic adsorption plate is fixedly connected with the inner wall of the supporting connecting plate through an empty groove, a pushing mechanism for controlling the magnetic adsorption plate is arranged in the T-shaped groove workbench, the pushing mechanism comprises a set of lifting plates, the magnetic adsorption plate can adsorb chippings in the T-shaped groove workbench, and the influence of chipping residues on the follow-up clamping precision is effectively avoided; the stability of machining quality is guaranteed, and meanwhile the service life of the T-shaped groove and clamp elements is prolonged.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing technology, and in particular to a sheet metal deep hole grinding machine tool. Background Technology

[0002] Sheet metal deep hole grinding machine tools are used to grind deep holes on sheet metal parts. Their functions revolve around the surface treatment of the inner wall and opening of the deep hole. They can remove impurities such as burrs, oxide scale, and rust from the hole, correct rough surfaces, scratches, or unevenness caused by processing, and improve the surface finish of the hole. They can adapt to deep holes of different diameters and depths. By adjusting parameters such as the grinding head speed and feed rate, different precision requirements can be met. During operation, the sheet metal part is fixed by a positioning mechanism, and the grinding head enters the hole to rotate or reciprocate, realizing automated grinding, reducing manual operation, and improving processing efficiency and consistency. They are suitable for the post-processing of deep holes in sheet metal in the automotive, machinery, aerospace and other fields.

[0003] CN116511293B discloses a sheet metal shell processing equipment, which includes a machine tool and a support table, etc.; the machine tool is connected to the support table. The support table is connected to a lower mold via a rotating assembly, and the hydraulic rod of a hydraulic press is connected to an upper mold. After the hydraulic press pushes the upper mold downward to cooperate with the lower mold to complete the stamping work on the sheet metal part, the spring-loaded assembly springs upward to eject the sheet metal part in the lower mold to the left. An air jet mechanism is also provided. The upward-moving upper air jet assembly blows the sheet metal part downward, allowing the sheet metal part to stay on the lower mold. Subsequently, the lower mold springs the sheet metal part upward, and at the same time, the lower air jet assembly blows the sheet metal part upward, avoiding the sheet metal part from being stuck on the upper or lower mold and unable to be ejected. This solves the technical problem that the flanged area of ​​the shell sheet metal part is relatively sharp, which is not only difficult to remove, but also easy to cut the hands of workers during the removal process.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were discovered: When sheet metal deep hole grinding machines perform deep hole grinding on sheet metal parts, some metal chips can easily enter the T-slot of the T-slot worktable. If these chips are not dealt with in time, they will accumulate in the slot. On the one hand, this will affect the installation and fixing effect of fixture components such as T-bolts and pressure plates, resulting in the workpiece not being firmly clamped, which in turn affects the machining accuracy. On the other hand, long-term residue of chips will accelerate the wear of the T-slot and fixture components, shorten their service life, and increase the equipment maintenance cost and frequency. Summary of the Invention

[0005] Technical problem to be solved: When sheet metal deep hole grinding machine tools perform deep hole grinding on sheet metal parts, some metal chips easily enter the T-slot of the T-slot worktable. If these chips are not dealt with in time, they will accumulate in the slot. On the one hand, this will affect the installation and fixing effect of fixture components such as T-bolts and pressure plates, resulting in the workpiece not being firmly clamped, which in turn affects the machining accuracy. On the other hand, long-term residue of chips will accelerate the wear of the T-slot and fixture components, shorten their service life, and increase the equipment maintenance cost and frequency.

[0006] To address the shortcomings of existing technologies, this invention provides a sheet metal deep hole grinding machine tool, thereby solving the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A sheet metal deep hole grinding machine tool includes a main body, the inside of which is provided a T-slot worktable for fixing the workpiece, the inside of which is provided a plurality of T-slots, and the inside of which is provided a magnetic suction mechanism for cleaning the inside of the T-slot worktable, including a magnetic adsorption plate. The lower end of the main body of the device has a slot, and the upper surface of the T-shaped slot workbench is provided with a support connecting plate. A rectangular slot is provided at the center point of the support connecting plate, and the magnetic adsorption plate is fixedly connected to the inner wall of the support connecting plate through the slot. The T-slot worktable is equipped with a mechanism for controlling the pushing of the magnetic adsorption plate. The pushing mechanism includes a set of lifting plates. The lower end of the supporting connecting plate is equipped with a debris collection mechanism, which includes two collection frames.

[0008] In one possible implementation, a movable plate is provided inside the main body of the device, and connecting blocks are fixedly connected to both ends of the upper surface of the movable plate.

[0009] In one possible implementation, two limiting grooves are provided on the upper surface of the main body of the device to provide movement space for the connecting blocks. The limiting grooves are connected to the empty grooves, and the upper ends of the two connecting blocks pass through the corresponding limiting grooves and are fixedly connected to the lower surface of the supporting connecting plate.

[0010] In one possible implementation, a threaded rod is threaded onto the center point of the movable plate. Both ends of the threaded rod are rotatably connected to the inner wall of the device body. Guide rods are provided at both ends of the threaded rod. The front and rear sides of the two guide rods are fixedly connected to the inner wall of the device body. Both guide rods are sleeved on the movable plate.

[0011] In one possible implementation, a servo motor is fixedly connected to the surface of the device body, and the output port of the servo motor passes through the device body and is fixedly connected to a threaded rod.

[0012] In one possible implementation, each lifting plate is located inside a T-slot, and a connecting plate is provided inside the slot. Two connecting rods are fixedly connected to the lower surface of each lifting plate, and the lower surface of each connecting rod passes through the T-slot worktable and the main body of the device and is fixedly connected to the upper surface of the connecting plate.

[0013] In one possible implementation, two trapezoidal movable plates are fixedly connected to the lower surface of the connecting plate, and two trapezoidal movable plates are fixedly connected to both the front and rear sides of the movable plate. The trapezoidal movable plates are positioned corresponding to the trapezoidal movable plates and their inclined surfaces are adapted.

[0014] In one possible implementation, two limiting grooves are provided inside the main body of the device, corresponding to the positions of the trapezoidal moving plate.

[0015] In one possible implementation, a fixed support frame is fixedly connected to the upper surface of the support connecting plate. A bidirectional screw is provided inside the fixed support frame. The two ends of the bidirectional screw are rotatably connected to the inner wall of the fixed support frame. A knob is provided at the right end of the fixed support frame. The right surface of the knob passes through the fixed support frame and is fixedly connected to the left surface of the bidirectional screw.

[0016] In one possible implementation, two parallel limiting grooves are formed through the upper surface of the support connecting plate. Two collection frames are located at the lower end of the support connecting plate, and the positions of the two collection frames correspond to the positions of the two moving blocks. Two connecting plates are fixedly connected to the upper surface of the two collection frames, and each connecting plate passes through the limiting grooves and is fixedly connected to the corresponding moving block.

[0017] Beneficial effects compared to existing technologies: 1. In this solution, when cleaning the T-slot, the magnetic adsorption plate can adsorb metal debris inside the T-slot worktable as it moves with the support connecting plate, effectively avoiding the impact of debris residue on subsequent clamping accuracy, ensuring the stability of processing quality, and extending the service life of the T-slot and fixture components. 2. In this solution, the pushing mechanism and the magnetic suction mechanism are linked. When the moving plate moves, the second trapezoidal moving plate lifts the first trapezoidal moving plate, which drives the first connecting plate, the connecting rod and the lifting plate to rise, pushing out the metal debris in the T-slot. This makes it easier for the magnetic suction mechanism to collect the debris, improves the continuity of "pushing out debris + suction cleaning", and greatly improves the debris cleaning efficiency. 3. In this solution, the rotation of the bidirectional lead screw is controlled by a knob, which drives the moving block and the collection frame to move closer to each other, gathering the metal debris on the magnetic adsorption plate. This avoids the problem of incomplete cleaning caused by the dispersion and accumulation of debris, and greatly reduces the difficulty and workload of manually cleaning the magnetic adsorption plate. Attached Figure Description

[0018] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the T-slot worktable of the present invention; Figure 3 This is a schematic diagram of the structure of the support connecting plate of the present invention; Figure 4 This is a schematic diagram of the threaded rod of the present invention; Figure 5 This is a schematic diagram of the structure of the trapezoidal moving plate of the present invention; Figure 6 This is a schematic diagram of the trapezoidal moving plate II of the present invention; Figure 7 This is a schematic diagram of the bidirectional lead screw of the present invention.

[0020] Legend: 11. Main body of the device; 12. Servo motor; 13. T-slot worktable; 14. Fixed support frame; 15. Support connecting plate; 16. Limiting groove one; 17. Limiting groove two; 18. Guide rod; 19. Connecting rod; 20. Lifting plate; 21. Connecting block; 22. Collection box; 23. Moving plate; 24. Threaded rod; 25. Trapezoidal moving plate one; 26. Connecting plate one; 27. Trapezoidal moving plate two; 28. Connecting plate two; 29. ​​Knob; 30. Moving block; 31. Bidirectional lead screw; 32. Limiting groove three; 33. Magnetic adsorption plate. Detailed Implementation

[0021] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0022] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows: Example:

[0023] Please refer to Figure 1 and Figure 7 As shown in the figure, this embodiment introduces a sheet metal deep hole grinding machine tool, including a device body 11. The device body 11 is provided with a T-slot worktable 13 for fixing the workpiece. The T-slot worktable 13 has multiple T-slots inside. Various clamping elements, such as T-bolts, nuts, and pressure plates, can be used through the T-slots. In use, the T-bolts are placed in the T-slots, and the pressure plate is tightened by the nuts. The pressure plate can then press the workpiece tightly onto the surface of the worktable, thereby fixing the workpiece.

[0024] The main body 11 of the device is equipped with a magnetic suction mechanism for cleaning the T-slot worktable 13. The lower end of the main body 11 has an empty slot, including a magnetic adsorption plate 33. The upper surface of the T-slot worktable 13 is provided with a support connecting plate 15. A rectangular slot is opened at the center point of the support connecting plate 15. The magnetic adsorption plate 33 is fixedly connected to the inner wall of the support connecting plate 15 through the empty slot. When the support connecting plate 15 moves along the upper end of the T-slot worktable 13, the magnetic adsorption plate 33 will sweep across the upper surface of the T-slot worktable 13 as the support connecting plate 15 moves. Therefore, when the magnetic adsorption plate 33 moves, it will adsorb the metal debris inside the T-slot worktable 13, so as to achieve the purpose of cleaning the inside of the T-slot worktable 13 by the magnetic suction mechanism, avoiding the impact of debris residue on the subsequent clamping accuracy, further ensuring the stability of processing quality, and extending the service life of the T-slot and the fixture components.

[0025] To allow users to more easily control the adsorption mechanism, a movable plate 23 is installed inside the main body 11 of the device to drive the support connecting plate 15 to move. Both ends of the upper surface of the movable plate 23 are fixedly connected to connecting blocks 21. Two limiting grooves 16 are opened on the upper surface of the main body 11 to provide moving space for the connecting blocks 21. The limiting grooves 16 are connected to the empty groove. The upper ends of the two connecting blocks 21 pass through the corresponding limiting grooves 16 and are fixedly connected to the lower surface of the support connecting plate 15. When the movable plate 23 moves, it will drive the support connecting plate 15 to move through the connecting blocks 21, thereby achieving the purpose of moving the support connecting plate 15.

[0026] To make the movement of the movable plate 23 more stable, a threaded rod 24 is threadedly connected to the center point of the movable plate 23. The threaded rod 24 is located inside the slot, and both ends of the threaded rod 24 are rotatably connected to the inner wall of the device body 11. When the threaded rod 24 rotates, it will drive the movable plate 23 to move. Both ends of the threaded rod 24 are provided with guide rods 18 for limiting the movement of the movable plate 23. The front and rear sides of the two guide rods 18 are fixedly connected to the inner wall of the device body 11. Both guide rods 18 are sleeved on the movable plate 23. When the movable plate 23 moves, the two guide rods 18 will guide the movement of the movable plate 23, so that the movable plate 23 can only move along the trajectory of the guide rods 18, which further improves the stability of the movable plate 23 when it moves.

[0027] A servo motor 12 that drives the threaded rod 24 to rotate is fixedly connected to the surface of the main body 11 of the device. The output port of the servo motor 12 passes through the main body 11 of the device and is fixedly connected to the threaded rod 24. As long as the servo motor 12 is started, the servo motor 12 will drive the threaded rod 24 to rotate, thereby achieving the purpose of controlling the movement of the support connecting plate 15, making the process of controlling the movement of the support connecting plate 15 more convenient.

[0028] To further improve the adsorption efficiency of the magnetic attraction mechanism for metal debris inside the T-slot worktable 13, a pushing mechanism for controlling the magnetic adsorption plate 33 is provided inside the T-slot worktable 13. The pushing mechanism includes a set of lifting plates 20, each of which is located inside the T-slot. A connecting plate 26 is provided inside the empty slot. Two connecting rods 19 are fixedly connected to the lower surface of each lifting plate 20. The lower surface of each connecting rod 19 passes through the T-slot worktable 13 and the main body 11 of the device and is fixedly connected to the upper surface of the connecting plate 26. Next, when the main body 11 processes the workpiece, some debris will enter the T-slot of the T-slot worktable 13. At this time, these debris will fall onto the upper surface of the lifting plate 20, controlling the connecting plate 26 to rise. When the connecting plate 26 rises, it will drive the lifting plate 20 to rise through the connecting rod 19. The rising lifting plate 20 can push the metal debris in the T-slot worktable 13 from the T-slot to a position close to the magnetic suction mechanism. At this time, the magnetic suction mechanism can more conveniently collect the metal debris in the T-slot worktable 13.

[0029] To improve the continuity between the magnetic attraction mechanism and the pushing mechanism, two trapezoidal moving plates 25 are fixedly connected to the lower surface of the connecting plate 26. Two trapezoidal moving plates 27 are fixedly connected to both the front and rear sides of the moving plate 23. The trapezoidal moving plates 27 correspond in position to the trapezoidal moving plates 25 and their inclined surfaces are also matched. When the moving plate 23 moves, it will drive the two trapezoidal moving plates 27 to move as well. The inclined surfaces of the trapezoidal moving plates 27 will contact the inclined surfaces of the trapezoidal moving plates 25, thus lifting the two trapezoidal moving plates 25. The trapezoidal moving plate 25 drives the connecting plate 26 to rise, and the connecting plate 26 drives the lifting plate 20 to rise through the connecting rod 19. This linkage structure allows the lifting plate 20 to automatically push out metal debris during the movement of the magnetic adsorption plate 33, improving the continuity of "debris pushing out + adsorption cleaning". The main body 11 of the device has two limiting grooves 17 inside that correspond to the positions of the trapezoidal moving plate 25. When the two trapezoidal moving plates 25 are lifted, they will pass through the limiting grooves 17, so that the trapezoidal moving plate 25 can stably drive the lifting plate 20 to rise and fall.

[0030] After the magnetic adsorption plate 33 cleans the debris on the T-slot workbench 13, a debris collection mechanism is provided at the lower end of the support connecting plate 15 to collect the debris on the magnetic adsorption plate 33. The debris collection mechanism includes two collection frames 22. A fixed support frame 14 is fixedly connected to the upper surface of the support connecting plate 15. The fixed support frame 14 contains key transmission components such as a bidirectional lead screw 31 and a moving block 30. These components need to be kept clean and move smoothly to ensure the normal movement of the collection frame 22. During the process of the magnetic adsorption plate 33 adsorbing metal debris and the collection frame 22 gathering debris, some small debris may splash or scatter. As a closed or semi-closed structure, the fixed support frame 14 can effectively prevent these debris from entering the interior, avoiding debris from adhering to the threads of the bidirectional lead screw 31 or jamming the moving block 30, thereby ensuring the flexibility and service life of the transmission components and ensuring the accurate and reliable movement of the collection frame 22.

[0031] To facilitate cleaning of the magnetic adsorption plate 33, a bidirectional lead screw 31 is installed inside the fixed support frame 14. Both ends of the bidirectional lead screw 31 are rotatably connected to the inner wall of the fixed support frame 14. A knob 29 is located on the right end of the fixed support frame 14. The right surface of the knob 29 passes through the fixed support frame 14 and is fixedly connected to the left surface of the bidirectional lead screw 31. The user controls the knob 29 to rotate, which in turn rotates the bidirectional lead screw 31. Moving blocks 30 are threaded onto both ends of the bidirectional lead screw 31. Rotation of the bidirectional lead screw 31 causes the two moving blocks 30 to move closer together. Two parallel limiting grooves 32 are formed through the upper surface of the support connecting plate 15, allowing two collection... The frame 22 is located at the lower end of the supporting connecting plate 15. The two collection frames 22 correspond to the positions of the two moving blocks 30. The upper surfaces of the two collection frames 22 are fixedly connected to two connecting plates 28. The connecting plates 28 correspond to the positions of the limiting grooves 32. Each connecting plate 28 passes through the limiting grooves 32 and is fixedly connected to the corresponding moving block 30. When the two moving blocks 30 move, they will drive the collection frames 22 to move closer to each other through the connecting plates 28. When the collection frames 22 move closer to each other, they will gather the metal debris on the magnetic adsorption plate 33, avoiding the problem of incomplete cleaning caused by the debris being dispersed and accumulated on the surface of the magnetic adsorption plate 33. This greatly reduces the difficulty and workload of manually cleaning the magnetic adsorption plate 33.

[0032] Working principle: In the first step, after the sheet metal deep hole grinding machine completes the processing of the sheet metal material, some sheet metal debris often remains inside the T-slot worktable 13. In order to remove these debris, the operator needs to start the servo motor 12. The start of the servo motor 12 will drive the threaded rod 24 to rotate. The rotation of the threaded rod 24 will cause the moving plate 23 to move along a certain trajectory. During the movement, the moving plate 23 will drive the supporting connecting plate 15 to move accordingly through the action of the connecting block 21. The magnetic adsorption plate 33 will slowly slide over the upper surface of the T-slot worktable 13 as the supporting connecting plate 15 moves. In this process, the magnetic adsorption plate 33 will effectively adsorb the metal debris inside the T-slot worktable 13, thereby achieving the purpose of cleaning. This cleaning method of magnetic adsorption mechanism effectively avoids the adverse effects of debris residue on the subsequent clamping accuracy, further ensures the stability of processing quality, and also extends the service life of the T-slot and fixture components. In the second step, during the movement of the moving plate 23, the trapezoidal moving plates 27 at both ends will come into contact with the inclined surface of the trapezoidal moving plate 25 on the lower surface of the connecting plate 26. This contact will cause the trapezoidal moving plate 25 to be lifted, thereby pushing the connecting plate 26 to rise. The connecting plate 26, through the action of the connecting rod 19, pushes the lifting plate 20 in the T-slot to move upward, pushing the debris in the slot to a position close to the magnetic suction mechanism. This design makes it easier for the magnetic adsorption plate 33 to adsorb these debris, thereby further improving the cleaning effect. Third, after the magnetic suction mechanism has finished adsorbing the metal debris, the operator needs to turn the knob 29 on the fixed support frame 14. The rotation of the knob 29 will drive the bidirectional lead screw 31 to rotate, which will cause the moving blocks 30 at both ends to move closer to each other. The moving blocks 30, through the action of the connecting plate 28, will drive the two collection frames 22 at the lower end of the support connecting plate 15 to move closer to each other, gathering the debris on the magnetic adsorption plate 33 together. This design greatly reduces the difficulty and workload of manual cleaning and improves work efficiency.

[0033] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A sheet metal deep hole grinding machine tool, comprising a main body (11), wherein a T-slot worktable (13) for fixing the workpiece is provided inside the main body (11), and the T-slot worktable (13) has multiple T-slots inside, characterized in that, The device body (11) is equipped with a magnetic suction mechanism for cleaning the T-slot workbench (13), including a magnetic suction plate (33). The lower end of the main body (11) of the device is provided with a slot, and the upper surface of the T-shaped slot workbench (13) is provided with a support connecting plate (15). A rectangular slot is provided at the center point of the support connecting plate (15), and the magnetic adsorption plate (33) is fixedly connected to the inner wall of the support connecting plate (15) through the slot. The T-slot worktable (13) is equipped with a pushing mechanism for controlling the magnetic adsorption plate (33), and the pushing mechanism includes a set of lifting plates (20). The lower end of the supporting connecting plate (15) is provided with a debris collection mechanism, which includes two collection frames (22).

2. The sheet metal deep hole grinding machine tool as described in claim 1, characterized in that, The main body (11) of the device is equipped with a movable plate (23), and the two ends of the upper surface of the movable plate (23) are fixedly connected to the connecting blocks (21).

3. The sheet metal deep hole grinding machine tool as described in claim 2, characterized in that, The upper surface of the main body (11) of the device has two limiting grooves (16) that provide moving space for the connecting blocks (21). The limiting grooves (16) are connected to the empty groove. The upper ends of the two connecting blocks (21) pass through the corresponding limiting grooves (16) and are fixedly connected to the lower surface of the support connecting plate (15).

4. The sheet metal deep hole grinding machine tool as described in claim 2, characterized in that, A threaded rod (24) is threaded onto the center point of the movable plate (23). Both ends of the threaded rod (24) are rotatably connected to the inner wall of the device body (11). Both ends of the threaded rod (24) are provided with guide rods (18). The front and rear sides of the two guide rods (18) are fixedly connected to the inner wall of the device body (11). Both guide rods (18) are sleeved on the movable plate (23).

5. The sheet metal deep hole grinding machine tool as described in claim 4, characterized in that, A servo motor (12) is fixedly connected to the surface of the main body (11) of the device. The output port of the servo motor (12) passes through the main body (11) and is fixedly connected to the threaded rod (24).

6. The sheet metal deep hole grinding machine tool as described in claim 1, characterized in that, Each lifting plate (20) is located inside the T-slot. A connecting plate (26) is installed inside the empty slot. Two connecting rods (19) are fixedly connected to the lower surface of each lifting plate (20). The lower surface of each connecting rod (19) passes through the T-slot workbench (13) and the main body of the device (11) and is fixedly connected to the upper surface of the connecting plate (26).

7. The sheet metal deep hole grinding machine tool as described in claim 6, characterized in that, Two trapezoidal movable plates (25) are fixedly connected to the lower surface of the connecting plate (26). Two trapezoidal movable plates (27) are fixedly connected to the front and rear sides of the movable plate (23). The trapezoidal movable plates (27) correspond to the trapezoidal movable plates (25) in position and are adapted to each other on the slope.

8. The sheet metal deep hole grinding machine tool as described in claim 7, characterized in that, The device body (11) has two limiting grooves (17) inside that correspond to the positions of the trapezoidal moving plate (25).

9. A sheet metal deep hole grinding machine tool as described in claim 1, characterized in that, A fixed support frame (14) is fixedly connected to the upper surface of the support connecting plate (15). A two-way screw rod (31) is provided inside the fixed support frame (14). The two ends of the two-way screw rod (31) are rotatably connected to the inner wall of the fixed support frame (14). A knob (29) is provided at the right end of the fixed support frame (14). The right surface of the knob (29) passes through the fixed support frame (14) and is fixedly connected to the left surface of the two-way screw rod (31).

10. A sheet metal deep hole grinding machine tool as described in claim 9, characterized in that, The upper surface of the support connecting plate (15) has two parallel limiting grooves (32) through it. Two collection frames (22) are located at the lower end of the support connecting plate (15). The two collection frames (22) correspond to the positions of the two moving blocks (30). The upper surface of the two collection frames (22) is fixedly connected to two connecting plates (28). Each connecting plate (28) passes through the limiting groove (32) and is fixedly connected to the corresponding moving block (30).

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