A device for processing a closed-section frame and its usage method

Abstract

A device for processing a closed-section frame and its usage method, comprising two installed first bases and second bases. A guide rail is provided between the first base and the second base, and a lead screw is arranged inside the guide rail. A second motor is provided on the first base, and the end of the lead screw is connected to the second motor. A slider is arranged on the guide rail, and the lead screw is in threaded connection with the slider. A first motor is provided above the slider, and a cutter head is arranged at the output end of the first motor. A groove is arranged inside the slider, a threaded column is arranged inside the groove, a connecting block is arranged on the threaded column, and the connecting block is inserted into the slider. A locking nut is arranged on one side of the slider, and the locking nut passes through the side wall of the slider and is connected to the connecting block. The slider is arranged on the guide rail, which can process the inner cavity plane of a structural member with a closed-section frame. Especially for some structural members with a longer length, in the case where an angle head or electric discharge machining cannot be used, a new processing method is provided, and it has a high processing accuracy.

Description

Technical Field

[0001] The present invention relates to the field of processing of closed-section frames, and in particular to a device for processing closed-section frames and a method of using the same. Background Art

[0002] In the internal cavity plane processing of some structural members with long closed-section frames, the following situations often occur, resulting in difficult processing or inability to process.

[0003] Due to the closed cross-section of the part, the machine tool cannot perform processing from the outside and can only use an angle head to extend into the internal cavity for processing. For parts with a long length, the angle head needs to be extended for a long distance. Therefore, the angle head needs to be customized, with high costs, and the overhang distance is limited, unable to meet the processing requirements of longer parts.

[0004] When using an electric discharge machining device, there are certain requirements for the material of the part to be machined. Composite materials cannot be machined, and the machining takes a long time with poor accuracy. Summary of the Invention

[0005] The main purpose of the present invention is to provide a device for processing closed-section frames and a method of using the same, so as to solve the problem that the closed cross-section of the part cannot be processed from the outside.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is: A device for processing closed-section frames, including two installed first bases and second bases. A guide rail is provided between the first base and the second base, and a lead screw is provided inside the guide rail. A second motor is provided on the first base, and the end of the lead screw is connected to the second motor. A slider is provided on the guide rail, and the lead screw is threadedly connected to the slider. A first motor is provided above the slider, and a cutter head is provided at the output end of the first motor.

[0007] A groove is provided inside the slider, a threaded post is provided inside the groove, a connecting block is provided at the upper end of the threaded post, and the connecting block is inserted into the slider. A locking nut is provided on one side of the slider, and the locking nut passes through the side wall of the slider and is connected to the connecting block.

[0008] The slider is provided on the guide rail, the threaded post is threadedly connected to the lead screw inside the guide rail, and a bottom cover is provided below the slider.

[0009] In a preferred embodiment, the inner wall structure of the guide rail is circular, or polygonal, or irregular;

[0010] The threaded post cooperates with the inner wall of the guide rail.

[0011] In a preferred embodiment, both ends of the guide rail are connected to the base through clamping frames, and the clamping frames include a first clamping frame and a second clamping frame.

[0012] In a preferred embodiment, a groove is provided at the upper end of the first clamping frame, the guide rail is arranged inside the groove, pressing blocks are arranged on both sides of the first clamping frame, one end of each pressing block abuts against the side of the guide rail, and the other end is rotatably connected to an adjusting stud. The adjusting stud passes through the side wall of the first clamping frame, and the adjusting stud is threadedly connected to the first clamping frame.

[0013] In a preferred embodiment, bottom adjusting blocks are provided at both ends of the guide rail, the first clamping frame is provided with a groove matching the bottom adjusting blocks, the bottom adjusting blocks are arranged in the positioning grooves, and the lower surface of the bottom adjusting blocks is connected to the screw lifting mechanism;

[0014] The structure of the screw lifting mechanism is as follows: The housing of the screw lifting mechanism is fixed to the lower end face of the first clamping frame, the lifting shaft passes through the lower end face of the first clamping frame and is connected to the lower surface of the bottom adjusting block, the gear is threadedly connected to the lifting shaft, the gear meshes with the spiral shaft, and one end of the spiral shaft is connected to a rotating handle, and the rotating handle is arranged outside the first clamping frame.

[0015] In a preferred embodiment, a first adjusting frame is provided at the lower end of the first clamping frame, a blind hole is provided below the first adjusting frame, a second adjusting frame is provided, and the second adjusting frame is slidably connected to the blind hole inside the first adjusting frame.

[0016] In a preferred embodiment, a plurality of holes are provided on the side wall of the first adjusting frame, a plurality of holes are provided on the side wall of the second adjusting frame, and a height adjusting nut is further provided, and the height adjusting nut is arranged in the side wall holes of the second adjusting frame and the first adjusting frame;

[0017] The height adjusting nut passes through the holes on the side walls of the second adjusting frame and the first adjusting frame to adjust the height of the second adjusting frame and the first adjusting frame.

[0018] In a preferred embodiment, a sliding groove is provided on the second base, a sliding seat is provided at the lower end of the second adjusting frame, and the sliding seat is slidably connected to the sliding groove;

[0019] A plurality of holes are provided inside the sliding groove, a plurality of holes are provided on the sliding seat, and a sliding adjusting nut is further provided, and the sliding adjusting nut passes through the sliding seat and is connected to the sliding groove.

[0020] In a preferred embodiment, a PLC controller is provided, and the PLC controller is electrically connected to the first motor and the second motor.

[0021] The method includes:

[0022] S1. Horizontally install the frame with a closed cross-section on the processing panel through the mounting frame;

[0023] S2. Install the first base and the second base at both ends of the frame respectively, install the first clamping frame on the second base, install the second clamping frame on the first base, and install the second motor on the second clamping frame;

[0024] S3. Place the lead screw inside the guide rail, install and lock the threaded column and the slider with a lock nut, and mate the threaded column with the lead screw inside the guide rail;

[0025] S4. Install a suitable cutter head on the first motor, pass the guide rail through the inside of the frame with a closed cross-section, and place both ends on the first clamping bracket and the second clamping bracket;

[0026] S5. After installation, level the guide rail and the machining panel using a dial indicator;

[0027] S6. Adjust the first adjusting bracket and the second adjusting bracket to make the height of the cutter head reach the machining position and lock it with a height adjusting nut;

[0028] S7. Adjust the slide seat and the sliding groove to make the cutter head abut against the inner wall of the frame, and lock it with a sliding adjusting nut. After the position adjustment is completed, start rough machining the inner wall of the frame;

[0029] S8. After rough machining, adjust the adjusting stud, adjust the adjusting studs on both sides of the clamping bracket. If one adjusting stud rotates in the reverse direction, the other adjusting stud rotates in the forward direction to adjust the feed of the guide rail and the inner wall of the frame, and at the same time clamp the guide rail. After adjustment, level the guide rail and the machining panel using a dial indicator;

[0030] S9. It is also possible to raise the guide rail by adjusting the rotating handle to make the bottom adjusting block rise and feed the upper side of the frame.

[0031] The present invention provides a device and a usage method for machining a frame with a closed cross-section, which can machine the inner cavity plane of a structural member with a frame having a closed cross-section. Especially for some structural members with a longer length, when it is impossible to machine using an angle head or electric discharge machining, a new machining method is provided, and it has a high machining accuracy. The frame is installed on the first base and the second base, the guide rail is installed on the first base and the second base, a slidable cutter head is installed on the guide rail, the guide rail is inserted inside the frame, and the cutter head is driven by a lead screw, so that the cutter head can machine the inner wall of the frame. Moreover, its structure is simple, convenient for production and manufacturing, has strong practicability, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following further describes the present invention in conjunction with the drawings and embodiments:

[0033] Figure 1 is the overall structure diagram of the present invention;

[0034] Figure 2 is the top view structure diagram of the present invention;

[0035] Figure 3 is the left view structure diagram of the present invention;

[0036] Figure 4It is a side view structure diagram of the interior of the processing frame of the present invention;

[0037] Figure 5 It is a sectional view structure diagram of the slider of the present invention;

[0038] Figure 6 It is an internal disassembly structure diagram of the slider of the present invention;

[0039] Figure 7 It is a front view structure diagram of the base of the present invention;

[0040] Figure 8 It is a side view structure diagram of the installation guide rail of the base of the present invention;

[0041] Figure 9 It is a sectional view structure diagram of the base of the present invention;

[0042] Figure 10 It is an internal disassembly structure diagram of the sliding installation of the pressing block in the first clamping frame of the present invention;

[0043] Figure 11 It is an installation position diagram of the screw lifting mechanism of the present invention;

[0044] Figure 12 It is an internal structure diagram of the screw lifting mechanism of the present invention;

[0045] Figure 13 It is a semi-sectional view structure diagram of the base of the present invention;

[0046] Figure 14 It is a side view sectional view structure diagram of the base of the present invention;

[0047] In the figure: the first base 1; the guide rail 2; the bottom adjustment block 201; the fixed block 202; the slider 3; the locking nut 301; the threaded column 302; the bottom cover 303; the connecting block 304; the second base 4; the chute 401; the sliding adjustment nut 402; the first clamping frame 5; the pressing cover 501; the pressing block 502; the first adjustment frame 503; the second adjustment frame 504; the adjustment stud 505; the height adjustment nut 506; the sliding seat 507; the first motor 6; the cutter head 7; the second clamping frame 8; the plc controller 9; the second motor 10; the frame 11; the processing panel 12; the mounting frame 13; the lead screw 14; the screw lifting mechanism 15; the housing 1501; the rotating handle 1502; the spiral shaft 1503; the lifting shaft 1504; the gear 1505; the guide track 16. Detailed implementation manners

[0048] Embodiment 1

[0049] As Figures 1 to 14As shown in the figure, a device for processing a closed-section frame includes two installed first bases 1 and second bases 4. A guide rail 2 is provided between the first base 1 and the second base 4. A lead screw 14 is provided inside the guide rail 2. A second motor 10 is provided on the first base 1, and the end of the lead screw 14 is connected to the second motor 10. A slider 3 is provided on the guide rail 2, and the lead screw 14 is threadedly connected to the slider 3. A first motor 6 is provided above the slider 3, and a cutter head 7 is provided at the output end of the first motor 6. With this structure, the first base 1 and the second base 4 install the guide rail 2, and the guide rail 2 is inserted inside the processing frame 11. As Figures 2 - 3 shown, control the second motor 10 to drive the slider 3 to slide on the guide rail 2, and the first motor 6 drives the cutter head 7 to rotate to process the inner wall of the frame 11.

[0050] A groove is provided inside the slider 3. A threaded post 302 is provided inside the groove. A connecting block 304 is provided at the upper end of the threaded post 302. The connecting block 304 is inserted into the slider 3. A locking nut 301 is provided on one side of the slider 3. The locking nut 301 passes through the side wall of the slider 3 and is connected to the connecting block 304. The slider 3 is provided on the guide rail 2. The threaded post 302 is threadedly connected to the lead screw 14 inside the guide rail 2. A bottom cover 303 is provided below the slider 3. With this structure, as Figures 5 - 6 shown, the guide rail 2 wraps the lead screw 14. The threaded post 302 is slidably connected to the inner wall of the guide rail 2. The threaded post 302 passes through. The connecting block 304 is inserted into the slider 3 and the threaded post 302 is locked by the locking nut 301 on the side wall. Then, a bottom cover 303 is installed below the slider 3 to wrap the guide rail 2 inside the slider 3. This structure is different from the traditional slider structure. This structure is relatively stable, the assembly gap is small, it is not easy to have an unstable situation of the cutter head 7 during processing, and the sliding accuracy is high.

[0051] In a preferred embodiment, the inner wall structure of the guide rail is circular, or polygonal, or irregular, and the threaded post cooperates with the inner wall of the guide rail. With this structure, the circular shape is convenient for processing, and the fitting accuracy is relatively high, and the sliding is smooth. Various polygons can also achieve sliding. The threaded post 302 is slidably fitted with the inner wall of the guide rail 2. The fitting accuracy does not need to be too high, and it only plays a role in sliding. The main sliding accuracy is the fitting between the slider 3 and the outer wall of the guide rail 2. As Figures 5 - 6 shown in the structure.

[0052] In a preferred embodiment, both ends of the guide rail 2 are connected to the base through clamping frames. The clamping frames include a first clamping frame 5 and a second clamping frame 8. With this structure, as Figure 1 shown in the structure, the guide rail 2 is clamped on the base through the clamping frames. The structures of the first clamping frame 5 and the second clamping frame 8 are the same.

[0053] In a preferred embodiment, a groove is provided at the upper end of the first clamping bracket 5, the guide rail 2 is arranged inside the groove, pressing blocks 502 are provided on both sides of the first clamping bracket 5, one end of each pressing block 502 abuts against the side of the guide rail 2, and the other end is rotatably connected to an adjusting stud 505. The adjusting stud 505 passes through the side wall of the first clamping bracket 5, and the adjusting stud 505 is threadedly connected to the first clamping bracket 5. With this structure, as Figure 9 shown in the structure, both sides of the guide rail 2 are pressed by the pressing blocks 502. By using the method of thread pressing and adjusting the left and right sliding of the guide rail 2, both sides are pressed by the pressing blocks 502, and the left and right clamping adjustment can also be carried out, which is more convenient when replacing the guide rail. After rough machining, adjust the adjusting stud 505, adjust the adjusting studs 505 on both sides of the clamping bracket. If one adjusting stud 505 rotates reversely, the other adjusting stud 505 rotates forwardly, adjusting the feed of the guide rail 2 with the inner wall of the frame 11, and at the same time clamping the guide rail 2. After adjustment, use a dial indicator to level the guide rail 2 with the processing panel 12.

[0054] In a preferred embodiment, bottom adjusting blocks 201 are provided at both ends of the guide rail 2, the first clamping bracket 5 is provided with grooves matching the bottom adjusting blocks 201, the bottom adjusting blocks 201 are arranged in the positioning grooves, and the lower surface of the bottom adjusting blocks 201 is connected to the screw lifting mechanism 15;

[0055] The structure of the screw lifting mechanism 15 is as follows: the housing 1501 of the screw lifting mechanism 15 is fixed on the lower end surface of the first clamping bracket 5, the lifting shaft 1504 passes through the lower end surface of the first clamping bracket 5 and is connected to the lower surface of the bottom adjusting block 201, the gear 1505 is threadedly connected to the lifting shaft 1504, the gear 1505 meshes with the spiral shaft 1503, one end of the spiral shaft 1503 is connected to the rotating handle 1502, and the rotating handle 1502 is arranged outside the first clamping bracket 5. From the above, it can be seen that the guide rail 2 can be rotatably placed on the first clamping bracket 5 and the second clamping bracket 8, and at the same time, the position of the first motor 6 can be changed, so that the cutter head 7 can face the side or the upper surface, realizing the processing of the four sides of the frame 11. Therefore, fine-tuning the pressing blocks 502 and the bottom adjusting blocks 201 after rough machining is the key to finish machining. Only by slowly adjusting the nut and then using a micrometer to level the guide rail 2 can small-size adjustment be achieved. The screw lifting mechanism 15 has a simple structure and is widely used.

[0056] In a preferred embodiment, a first adjusting bracket 503 is provided at the lower end of the first clamping bracket 5, a blind hole is provided below the first adjusting bracket 503, and a second adjusting bracket 504 is provided. The second adjusting bracket 504 is slidably connected to the blind hole inside the first adjusting bracket 503. With this structure, the second adjusting bracket 504 and the first adjusting bracket 503 are slidably connected, and the height position of the cutter head 7 can be adjusted.

[0057] In a preferred embodiment, a plurality of holes are provided on the side wall of the first adjusting frame 503, and a plurality of holes are provided on the side wall of the second adjusting frame 504. A height adjusting nut 506 is further provided, and the height adjusting nut 506 is arranged in the side wall holes of the second adjusting frame 504 and the first adjusting frame 503. With this structure, the second adjusting frame 504 and the first adjusting frame 503 can slide, and then are locked by passing the height adjusting nut 506 through the holes, so that the positions of the second adjusting frame 504 and the first adjusting frame 503 are fixed. The height adjusting nut 506 passes through the holes on the side walls of the second adjusting frame 504 and the first adjusting frame 503 to adjust the heights of the second adjusting frame 504 and the first adjusting frame 503.

[0058] In a preferred embodiment, a chute 401 is provided on the second base 4, and a sliding seat 507 is provided at the lower end of the second adjusting frame 504. The sliding seat 507 is slidably connected to the chute 401. With this structure, as Figure 8 , 10 shown, the second base 4 and the second adjusting frame 504 are slidably adjusted to cut and feed the cutter head 7 and the frame 11.

[0059] A plurality of holes are provided inside the chute 401, a plurality of holes are provided on the sliding seat 507, and a sliding adjusting nut 402 is further provided. The sliding adjusting nut 402 passes through the sliding seat 507 and is connected to the chute 401. With this structure, the second base 4 and the second adjusting frame 504 are slidably adjusted to the cutter head 7, and the sliding adjusting nut 402 is used to fix the position.

[0060] In a preferred embodiment, a PLC controller 9 is provided, and the PLC controller 9 is electrically connected to the first motor 6 and the second motor 10. With this structure, the PLC controller 9 controls the operation of the first motor 6 and the second motor 10 to machine the inner wall of the frame 11.

[0061] Embodiment 2

[0062] Further described in combination with Embodiment 1, as Figures 1 to 14 shown, the frame 11 with a closed cross-section is horizontally installed on the processing panel 12 through the mounting frame 13.

[0063] The first base 1 and the second base 4 are respectively installed at both ends of the frame 11. The first clamping frame 5 is installed on the second base 4, the second clamping frame 8 is installed on the first base 1, and the second motor 10 is installed on the second clamping frame 8.

[0064] The lead screw 14 is placed inside the guide rail 2, the threaded column 302 and the slider 3 are installed and locked through the locking nut 301, and the threaded column 302 is matched with the lead screw 14 inside the guide rail 2.

[0065] The first motor 6 is installed with a suitable cutter head 7, and the guide rail 2 passes through the inside of the frame 11 with a closed cross-section and is placed on the first clamping frame 5 and the second clamping frame 8 at both ends.

[0066] After installation, use a dial indicator to level the guide rail 2 and the machining panel 12.

[0067] Adjust the first adjusting frame 503 and the second adjusting frame 504 to make the height of the cutter head 7 reach the machining position and lock it with the height adjusting nut 506.

[0068] Adjust the sliding seat 507 and the sliding groove 401 to make the cutter head 7 abut against the inner wall of the frame 11 and lock it with the sliding adjusting nut 402. After the position adjustment is completed, start rough machining the inner wall of the frame 11.

[0069] After rough machining, adjust the adjusting stud 505. Adjust the adjusting studs 505 on both sides of the clamping frame. If one side of the adjusting stud 505 rotates in the reverse direction, the adjusting stud 505 on the other side rotates in the forward direction to adjust the feed of the guide rail 2 and the inner wall of the frame 11, and at the same time clamp the guide rail 2. After adjustment, use a dial indicator to level the guide rail 2 and the machining panel 12.

[0070] It is also possible to raise the guide rail 2 by adjusting the rotating handle 1502 to make the bottom adjusting block 201 rise and feed the upper side of the frame 11.

[0071] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A device for processing a closed-section frame, characterized in that: It includes two installed first bases (1) and second bases (4). A guide rail (2) is provided between the first base (1) and the second base (4). A lead screw (14) is provided inside the guide rail (2). A second motor (10) is provided on the first base (1). The end of the lead screw (14) is connected to the second motor (10). A slider (3) is provided on the guide rail (2). The lead screw (14) is threadedly connected to the slider (3). A first motor (6) is provided above the slider (3). A cutter head (7) is provided at the output end of the first motor (6). A groove is provided inside the slider (3). A threaded post (302) is provided inside the groove. A connecting block (304) is provided at the upper end of the threaded post (302). The connecting block (304) is inserted into the slider (3). A locking nut (301) is provided on one side of the slider (3). The locking nut (301) passes through the side wall of the slider (3) and is connected to the connecting block (304). The slider (3) is provided on the guide rail (2). The threaded post (302) is threadedly connected to the lead screw (14) inside the guide rail (2). A bottom cover (303) is provided below the slider (3). Both ends of the guide rail (2) are connected to the base through clamping frames. The clamping frames include a first clamping frame (5) and a second clamping frame (8). A groove is provided at the upper end of the first clamping frame (5). The guide rail (2) is provided inside the groove. Pressing blocks (502) are provided on both sides of the first clamping frame (5). One end of the pressing block (502) abuts against the side of the guide rail (2), and the other end is rotatably connected to an adjusting stud (505). The adjusting stud (505) passes through the side wall of the first clamping frame (5). The adjusting stud (505) is threadedly connected to the first clamping frame (5). Bottom adjusting blocks (201) are provided at both ends of the guide rail (2). The first clamping frame (5) is provided with a groove matching the bottom adjusting block (201). The bottom adjusting block (201) is arranged in the positioning groove. The lower surface of the bottom adjusting block (201) is connected to a screw rod lifting mechanism (15). The structure of the screw rod lifting mechanism (15) is as follows: The housing (1501) of the screw rod lifting mechanism (15) is fixed on the lower end surface of the first clamping frame (5). The lifting shaft (1504) passes through the lower end surface of the first clamping frame (5) and is connected to the lower surface of the bottom adjusting block (201). A gear (1505) is threadedly connected to the lifting shaft (1504). The gear (1505) meshes with a spiral shaft (1503). One end of the spiral shaft (1503) is connected to a turning handle (1502). The turning handle (1502) is arranged outside the first clamping frame (5). A first adjusting frame (503) is provided at the lower end of the first clamping frame (5). A blind hole is provided below the first adjusting frame (503). A second adjusting frame (504) is also provided. The second adjusting frame (504) is slidably connected to the blind hole inside the first adjusting frame (503). A chute (401) is provided on the second base (4). A sliding seat (507) is provided at the lower end of the second adjusting frame (504). The sliding seat (507) is slidably connected to the chute (401). The inside of the sliding groove (401) is provided with a plurality of holes, the sliding seat (507) is provided with a plurality of holes, and a sliding adjustment nut (402) is further provided. The sliding adjustment nut (402) passes through the sliding seat (507) and is connected to the sliding groove (401).

2. The device for processing a closed-section frame according to claim 1, wherein: The inner wall structure of the guide rail (2) is circular, or polygonal, or irregular; The threaded column (302) is matched with the inner wall of the guide rail (2).

3. The device for processing a closed-section frame according to claim 1, wherein: The side wall of the first adjusting frame (503) is provided with a plurality of holes, the side wall of the second adjusting frame (504) is provided with a plurality of holes, and a height adjustment nut (506) is further provided. The height adjustment nut (506) is arranged in the side wall holes of the second adjusting frame (504) and the first adjusting frame (503); The height adjustment nut (506) passes through the holes in the side walls of the second adjusting frame (504) and the first adjusting frame (503) to adjust the heights of the second adjusting frame (504) and the first adjusting frame (503).

4. The processing device for a closed-section frame according to claim 1, wherein: A PLC controller (9) is provided, and the PLC controller (9) is electrically connected to the first motor (6) and the second motor (10).

5. The usage method of a device for processing a closed-section frame according to claim 3, the method comprising: S1. Horizontally install the frame (11) with a closed section on the processing panel (12) through the mounting frame (13); S2. Install a first base (1) and a second base (4) at both ends of the frame (11), install a first clamping frame (5) on the second base (4), install a second clamping frame (8) on the first base (1), and install a second motor (10) on the second clamping frame (8); S3. Place the lead screw (14) inside the guide rail (2), install and lock the threaded column (302) and the slider (3) through the locking nut (301), and match the threaded column (302) with the lead screw (14) inside the guide rail (2); S4. Install a suitable cutter head (7) on the first motor (6), pass the guide rail (2) through the inside of the frame (11) with a closed section, and place both ends on the first clamping frame (5) and the second clamping frame (8); S5. After the installation is completed, level the guide rail (2) and the processing panel (12) by using a dial indicator; S6. Adjust the first adjusting frame (503) and the second adjusting frame (504) to make the height of the cutter head (7) reach the processing position and lock it with the height adjustment nut (506); S7. Adjust the sliding seat (507) and the sliding groove (401) to make the cutter head (7) abut against the inner wall of the frame (11), and lock it with the sliding adjustment nut (402). After the position adjustment is completed, start rough machining the inner wall of the frame (11); S8. After the rough machining is completed, adjust the adjusting stud (505), adjust the adjusting studs (505) on both sides of the clamping frame. If one adjusting stud (505) rotates in the reverse direction, the other adjusting stud (505) rotates in the forward direction to adjust the feed of the guide rail (2) against the inner wall of the frame (11), and at the same time clamp the guide rail (2). After the adjustment is completed, level the guide rail (2) and the processing panel (12) by using a dial indicator; S9. It is also possible to raise the guide rail (2) by adjusting the rotating handle (1502) to make the bottom adjusting block (201) for feeding the upper side of the frame (11).

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