Clamp structure for mechanical numerical control machine tool

Abstract

The clamp structure for the mechanical numerical control machine tool relates to the technical field of clamp structures and comprises a clamp base, first adjusting boxes are symmetrically and slidably arranged on the upper portion of the clamp base, a second adjusting box is slidably arranged on the upper portion of the clamp base, and clamping plates are movably connected to the upper portions of the two first adjusting boxes and the upper portion of the second adjusting box. The clamp base is in threaded connection with the second fixing bolt, and an adjusting assembly is arranged on the clamp base; the adjusting assembly comprises a first movable rod arranged on the inner side of the clamp base in a sliding mode, second movable rods movably connected to the two sides of the first movable rod, a push rod installed on the side face of the first movable rod, and second threaded rods in threaded connection with the second movable rods. The working states of the three clamping plates and the working states of the two clamping plates can be switched in real time for use, real-time adjustment and use can be conveniently conducted according to different clamping pieces, and high flexibility is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fixture structures, in particular to a fixture structure used for mechanical numerical control machine tools. Background Art

[0002] Mechanical CNC machine tool is the abbreviation of digital control machine tool, which is an automated machine tool equipped with a program control system. The fixture of mechanical CNC machine tool is a process equipment used to clamp the workpiece on the machine tool to ensure smooth continuous cutting. The fixture of mechanical CNC machine tool can accurately determine the relative position of the workpiece relative to the tool and the machine tool cutting and forming movement, ensuring that the processing accuracy is easy to guarantee, not affected or less affected by various subjective factors, thereby stabilizing the processing quality.

[0003] After searching, the invention patent with Chinese patent number CN115847150A discloses a machine tool fixture for mechanical processing. Compared with the existing technology, the invention patent with Chinese patent number CN115847150A can apply clamping force in multiple directions to the workpiece, thereby improving the clamping effect.

[0004] However, in actual use, the above-mentioned device performs clamping work through two clamping plates. However, for workpieces with complex shapes and many curved surfaces, such as automobile bodies, aircraft skins, etc., multiple clamping plates are required for clamping work. For plate-shaped parts, etc., two clamping plates are used for clamping work. The above-mentioned device performs clamping work through two clamping plates with relatively flat clamping surfaces. When encountering different clamping, the clamp needs to be replaced, and the flexibility and versatility are low. Therefore, a clamp structure for mechanical CNC machine tools is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art, that is, the flexibility is low and the fixture needs to be replaced when different clamping is encountered, and to propose a fixture structure for a mechanical numerical control machine tool.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] 4. The repairing kit for automotive dents, according to claim 1, wherein the two trackballs are designed to be pivotally connected to each other with a bolt, and the bolt has a round shank to contact with the two trackballs, wherein the two trackballs are designed to be pivotally connected to each other with a bolt, and the bolt has a round shank to contact with the two trackballs.

[0008] The splint is provided with a multifunctional component, which includes an arc surface opened on the splint, a plurality of telescopic rods movably connected to the side of the splint, a first extension plate and a second extension plate symmetrically slidably arranged on the side of the splint, and a first bidirectional threaded rod and a second bidirectional threaded rod rotatably connected to the inner side of the splint. The splint switches between different clamping positions for clamping by self-rotation. When the first bidirectional threaded rod rotates, it drives the two second extension plates to move toward each other to extend the vertical clamping surface of the splint. When the first bidirectional threaded rod rotates, it drives the second bidirectional threaded rod to rotate. When the second bidirectional threaded rod rotates, it drives the two first extension plates to move toward each other to extend the horizontal clamping surface of the splint. The splint can be adjusted and used in real time according to the edge conditions of different clamping parts, and can meet multiple clamping needs at the same time.

[0009] The above technical solution further includes:

[0010] The upper part of the clamp base is symmetrically provided with an arc groove, the inner side of which is slidably provided with a first sliding block, which is fixedly connected to the first adjustment box so that the first sliding block can move along the arc groove.

[0011] A movable block is slidably provided on the inner side of the two first adjustment boxes and the second adjustment boxes, and a first threaded rod is rotatably connected to the inner side of the two first adjustment boxes and the second adjustment boxes, the first threaded rod is threadedly connected to the movable block, and the movable block is rotatably connected to the clamping plate, and the clamping plate on the movable block is driven to move along the first adjustment box by the rotation of the first threaded rod.

[0012] A rotating rod is installed on the upper part of the movable block, the rotating rod is rotatably connected to the clamping plate, the rotating rod is threadedly connected to the first fixing bolt, a plurality of fixing grooves are opened on the upper part of the clamping plate, the fixing grooves are threadedly connected to the first fixing bolt, so as to realize the rotation of the clamping plate and the locking after rotation.

[0013] The side of the clamping plate is symmetrically provided with a first opening groove, and the two first extension plates are respectively slidably arranged on the inner side of the first opening groove; the side of the clamping plate is symmetrically provided with a second opening groove, and the two second extension plates are respectively slidably arranged on the inner side of the second opening groove, so that the second extension plate and the first extension plate are moved to the outside of the first opening groove and the second opening groove for extension.

[0014] A first sliding groove is provided on the inner side of the splint, the first sliding groove is connected to the second opening groove, a first bidirectional threaded rod is rotatably connected to the inner side of the first sliding groove, a first sliding plate is symmetrically slidably provided on the inner side of the first sliding groove, the first sliding plate is fixedly connected to the second extension plate, the first sliding plate is threadedly connected to the first bidirectional threaded rod, and a first bevel gear is installed on the outer side of the first bidirectional threaded rod, which can drive the second extension plate to move and extend.

[0015] The inner side of the clamping plate is symmetrically provided with a second sliding groove, the second sliding groove is connected to the first opening groove, and a second bidirectional threaded rod is connected to the inner sides of the two second sliding grooves for common rotation, a second sliding plate is slidably arranged on the inner side of the second sliding groove, the second sliding plate is fixedly connected to the first extension plate, and the first extension plate can be driven to move and extend, the second sliding plate is threadedly connected to the second bidirectional threaded rod, a second bevel gear is installed on the outer side of the second bidirectional threaded rod, the second bevel gear is meshed with the first bevel gear, and can drive the second bidirectional threaded rod to rotate when the first bidirectional threaded rod rotates.

[0016] The inner side of the clamp base is respectively provided with a first square groove and a second square groove, the first square groove and the second square groove are interconnected, the first movable rod is slidably arranged on the inner side of the first square groove, the second threaded rod is rotatably connected to the clamp base, and the second movable rod is movably connected to the first sliding block at one end away from the first movable rod. When the first movable rod moves, the first sliding block is driven to move by the second movable rod.

[0017] A second sliding block is slidably provided on the inner side of the second square groove, the second sliding block is fixedly connected to the second adjusting box, a spring and a first telescopic rod are respectively installed on the sides of the second sliding block, a fixed block is commonly installed on the ends of the spring and the first telescopic rod away from the second sliding block, the fixed block is fixedly connected to the second square groove, and the position of the second adjusting box is adjusted by the extension and retraction of the spring and the first telescopic rod.

[0018] The size of the opening of the first opening slot is matched with the size of the first extension plate, and the size of the opening of the second opening slot is matched with the size of the second extension plate, so that the movement of the second extension plate and the first extension plate is more stable.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, by setting an adjustment component, the working states of three clamps and two clamps can be switched in real time for use, which is convenient for real-time adjustment according to different clamping parts and has a high degree of flexibility.

[0021] 2. In the present invention, when clamping by the clamping plate, the multifunctional component can make the clamping plate be adjusted in real time according to the shape of the edges of different clamping parts, which can meet multiple clamping requirements at the same time, further improving the versatility and flexibility of clamping, and there is no need to change different clamping devices for clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the top cross-sectional structure of the fixture structure for a mechanical numerical control machine tool proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the splint structure in the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the splint in the present invention;

[0026] Figure 5 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0027] Figure 6 for Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0028] Figure 7 for Figure 1 A magnified schematic diagram of the structure at C in the middle;

[0029] Figure 8 for Figure 1 Enlarged schematic diagram of the structure at point D in the middle.

[0030] In the figure: 1, clamp base; 2, arc groove; 3, first sliding block; 4, first adjusting box; 5, movable block; 6, first threaded rod; 7, clamping plate; 8, first square groove; 9, first movable rod; 10, second movable rod; 11, second threaded rod; 12, second square groove; 13, push rod; 14, second sliding block; 15, second adjusting box; 16, fixed block; 17, spring; 18, first telescopic rod; 19, arc surface; 20, telescopic rod; 21, first opening groove; 22, first extension plate; 23, second opening groove; 24, second extension plate; 25, rotating rod; 26, first fixing bolt; 27, fixing groove; 28, first sliding groove; 29, first two-way threaded rod; 30, first sliding plate; 31, first bevel gear; 32, second sliding groove; 33, second two-way threaded rod; 34, second sliding plate; 35, second bevel gear; 36, second fixing bolt. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] like Figure 1-Figure 8 As shown, the fixture structure for a mechanical numerical control machine tool proposed by the present invention comprises a fixture base 1, a first adjustment box 4 is symmetrically slidably arranged on the upper part of the fixture base 1, a second adjustment box 15 is slidably arranged on the upper part of the fixture base 1, a clamp plate 7 is movably connected to the upper parts of the two first adjustment boxes 4 and the second adjustment box 15, the fixture base 1 is threadedly connected to the second fixing bolt 36, an adjustment assembly is arranged on the fixture base 1, and the adjustment assembly comprises a first movable rod 9 slidably arranged on the inner side of the fixture base 1, second movable rods 10 movably connected on both sides of the first movable rod 9, and a push rod 7 installed on the side of the first movable rod 9. The movable rod 13 and the second threaded rod 11 threadably connected with the second movable rod 10 drive the first movable rod 9 to move horizontally when the second threaded rod 11 rotates. When the first movable rod 9 moves, it drives the two second movable rods 10 and the push rod 13 to move horizontally at the same time. When the two second movable rods 10 move, they drive the two first adjustment boxes 4 to adjust their horizontal positions respectively. When the push rod 13 moves, it drives the second adjustment box 15 to adjust its horizontal position. The working states of the three clamping plates 7 and the two clamping plates 7 can be switched in real time for use, which is convenient for real-time adjustment according to different clamping members.

[0034] A multifunctional component is provided on the splint 7, and the multifunctional component includes an arc-shaped surface 19 opened on the splint 7, a plurality of telescopic rods 20 movably connected to the side of the splint 7, a first extension plate 22 and a second extension plate 24 symmetrically and slidingly arranged on the side of the splint 7, and a first bidirectional threaded rod 29 and a second bidirectional threaded rod 33 rotatably connected to the inner side of the splint 7. The splint 7 switches between different clamping positions for clamping by self-rotation. When the first bidirectional threaded rod 29 rotates, it drives the two second extension plates 24 to move toward each other to extend the vertical clamping surface of the splint 7. When the first bidirectional threaded rod 29 rotates, it drives the second bidirectional threaded rod 33 to rotate. When the second bidirectional threaded rod 33 rotates, it drives the two first extension plates 22 to move toward each other to extend the horizontal clamping surface of the splint 7. The splint 7 can be adjusted and used in real time according to the edge conditions of different clamping parts, and can meet multiple clamping requirements at the same time.

[0035] The upper part of the clamp base 1 is symmetrically provided with an arc groove 2, and a first sliding block 3 is slidably provided inside the arc groove 2. The first sliding block 3 is fixedly connected to the first adjustment box 4 so that the first sliding block 3 can move along the arc groove 2.

[0036] A movable block 5 is slidably arranged on the inner side of the two first adjusting boxes 4 and the second adjusting box 15, and a first threaded rod 6 is rotatably connected to the inner side of the two first adjusting boxes 4 and the second adjusting box 15. The first threaded rod 6 is threadedly connected to the movable block 5, and the movable block 5 is rotatably connected to the splint 7. The rotation of the first threaded rod 6 drives the splint 7 on the movable block 5 to move along the first adjusting box 4.

[0037] A first square groove 8 and a second square groove 12 are respectively provided on the inner side of the clamp base 1, and the first square groove 8 and the second square groove 12 are interconnected. A first movable rod 9 is slidably arranged on the inner side of the first square groove 8, and a second threaded rod 11 is rotatably connected to the clamp base 1. An end of the second movable rod 10 away from the first movable rod 9 is movably connected to the first sliding block 3. When the first movable rod 9 moves, the first sliding block 3 is driven to move by the second movable rod 10.

[0038] A second sliding block 14 is slidably provided on the inner side of the second square groove 12, and the second sliding block 14 is fixedly connected to the second adjusting box 15, and a spring 17 and a first telescopic rod 18 are respectively installed on the side of the second sliding block 14, and a fixed block 16 is commonly installed on the end of the spring 17 and the first telescopic rod 18 away from the second sliding block 14, and the fixed block 16 is fixedly connected to the second square groove 12, and the position of the second adjusting box 15 is adjusted by the extension and retraction of the spring 17 and the first telescopic rod 18.

[0039] When the two clamping plates 7 are needed to clamp the two sides of the clamping piece, the first threaded rods 6 on the two first adjusting boxes 4 can be directly rotated. The force generated when the first threaded rods 6 rotate can drive the movable block 5 to move along the first adjusting box 4, thereby driving the two clamping plates 7 to move in the direction close to each other until the clamping piece is clamped. At this time, the second adjusting box 15 is limited by the pushing rod 13 against the second sliding block 14, away from the center position of the clamp base 1, and will not affect the clamping work. If the three clamping plates 7 are needed to clamp, the second threaded rod 11 can be rotated at this time. The force generated when the second threaded rod 11 is rotated can drive the first movable rod 9 to move, and at the same time, the first adjusting box 4 on the first sliding block 3 is driven to move in an arc along the arc groove 2 through the second movable rod 10, and The second movable rod 10 is movably connected to the first movable rod 9 and the first sliding block 3, and can support the arc movement of the first sliding block 3. When the first movable rod 9 moves, it can also drive the push rod 13 to move, so that the push rod 13 no longer resists the second sliding block 14. At this time, the spring 17 and the first telescopic rod 18 in the stretched state are reset, and at the same time drive the second sliding block 14 to move along the second square groove 12, thereby driving the clamping plate 7 on the second adjusting box 15 to move, and then rotate the second fixing bolt 36 to limit the second sliding block 14. At this time, the three clamping plates 7 are at the same distance from the center point of the clamp base 1. In this way, the working state can be quickly adjusted, and the two clamping plates 7 and the three clamping plates 7 can be switched in real time for clamping work, which is convenient for real-time adjustment and use according to different clamping parts, increases the adaptability of clamping work, and improves the flexibility of the device.

[0040] Embodiment 2

[0041] like Figure 1-Figure 8 As shown, based on the first embodiment, a rotating rod 25 is installed on the upper part of the movable block 5, the rotating rod 25 is rotatably connected to the clamp plate 7, the rotating rod 25 is threadedly connected to the first fixing bolt 26, and a plurality of fixing grooves 27 are provided on the upper part of the clamp plate 7, the fixing grooves 27 are threadedly connected to the first fixing bolt 26, so as to realize the rotation of the clamp plate 7 and the locking after the rotation.

[0042] A first opening groove 21 is symmetrically provided on the side of the clamping plate 7, and two first extension plates 22 are respectively slidably arranged on the inner side of the first opening groove 21. A second opening groove 23 is symmetrically provided on the side of the clamping plate 7, and two second extension plates 24 are respectively slidably arranged on the inner side of the second opening groove 23, so that the second extension plates 24 and the first extension plates 22 are moved to the outside of the first opening groove 21 and the second opening groove 23 for extension.

[0043] A first sliding groove 28 is provided on the inner side of the clamping plate 7, and the first sliding groove 28 is connected to the second opening groove 23. A first bidirectional threaded rod 29 is rotatably connected to the inner side of the first sliding groove 28. A first sliding plate 30 is symmetrically slidably provided on the inner side of the first sliding groove 28. The first sliding plate 30 is fixedly connected to the second extension plate 24, and the first sliding plate 30 is threadedly connected to the first bidirectional threaded rod 29. A first bevel gear 31 is installed on the outer side of the first bidirectional threaded rod 29, which can drive the second extension plate 24 to move and extend.

[0044] A second sliding groove 32 is symmetrically provided on the inner side of the clamping plate 7, and the second sliding groove 32 is connected to the first opening groove 21, and a second bidirectional threaded rod 33 is rotatably connected between the inner sides of the two second sliding grooves 32, and a second sliding plate 34 is slidably provided on the inner side of the second sliding groove 32, and the second sliding plate 34 is fixedly connected to the first extension plate 22, and can drive the first extension plate 22 to move and extend, and the second sliding plate 34 is threadedly connected to the second bidirectional threaded rod 33, and a second bevel gear 35 is installed on the outer side of the second bidirectional threaded rod 33, and the second bevel gear 35 is meshed with the first bevel gear 31, and can drive the second bidirectional threaded rod 33 to rotate when the first bidirectional threaded rod 29 rotates.

[0045] The size of the opening of the first opening slot 21 matches the size of the first extension plate 22 , and the size of the opening of the second opening slot 23 matches the size of the second extension plate 24 , so that the second extension plate 24 and the first extension plate 22 can move more stably.

[0046] In this embodiment, during the clamping work, if a clamping piece of various shapes is encountered, the clamping plate 7 can be adjusted in real time according to the shape of the clamping piece for use. First, the first fixing bolt 26 can be rotated to release the connection with the fixing groove 27, and then the clamping plate 7 can be rotated. If it is a square clamping piece with neat edges, the flat surface of the clamping plate 7 can be directly used for clamping. If it is an arc-shaped clamping piece, it can be clamped through the arc surface 19. If it is an irregularly shaped clamping piece, it can be clamped by multiple telescopic rods 20. When clamping by multiple telescopic rods 20, since the multiple telescopic rods 20 are telescopic, they can automatically adapt to the irregular edges of the clamping piece, so as to fully clamp. If the clamping piece is higher and wider, it can be clamped by two first extension plates 22 and two second extension plates 24. When clamping, the first bidirectional threaded rod 2 can be rotated. 9. Since the first bevel gear 31 is meshed with the second bevel gear 35, the first bidirectional threaded rod 29 can drive the second bidirectional threaded rod 33 to rotate through the first bevel gear 31 and the second bevel gear 35 when the first bidirectional threaded rod 29 rotates. The force generated when the first bidirectional threaded rod 29 rotates can drive the two first sliding plates 30 to move in opposite directions along the first sliding groove 28, thereby driving the two second extension plates 24 to move to the outside of the second opening groove 23 to perform the clamping surface of the vertically extended clamping plate 7. The force generated when the second bidirectional threaded rod 33 rotates can drive the two second sliding plates 34 to move in opposite directions along the second sliding groove 32, thereby driving the two first extension plates 22 to move to the outside of the first opening groove 21 to perform the clamping surface of the horizontally extended clamping plate 7, which can meet multiple clamping requirements at the same time and improve the versatility and flexibility of clamping.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture structure for a mechanical numerical control machine tool, comprising a fixture base (1), characterized in that: A first adjustment box (4) is symmetrically slidably arranged on the upper part of the clamp base (1), and a second adjustment box (15) is slidably arranged on the upper part of the clamp base (1). The upper parts of the two first adjustment boxes (4) and the second adjustment boxes (15) are both movably connected with a clamp plate (7). The clamp base (1) is threadedly connected to a second fixing bolt (36). An adjustment assembly is arranged on the clamp base (1), and the adjustment assembly includes a first movable rod (9) slidably arranged on the inner side of the clamp base (1), second movable rods (10) movably connected on both sides of the first movable rod (9), and the first movable rod (11) is connected to the clamp base (1). A push rod (13) is installed on the side of the movable rod (9), and a second threaded rod (11) is threadedly connected to the second movable rod (10), the second threaded rod (11) drives the first movable rod (9) to move horizontally when the second threaded rod (11) rotates, the first movable rod (9) drives the two second movable rods (10) and the push rod (13) to move horizontally at the same time when the first movable rod (9) moves, the two second movable rods (10) drive the two first adjustment boxes (4) to adjust their horizontal positions when the two second movable rods (10) move, and the push rod (13) drives the second adjustment box (15) to adjust its horizontal position when the push rod (13) moves; The splint (7) is provided with a multifunctional component, which includes an arc surface (19) opened on the splint (7), a plurality of telescopic rods (20) movably connected to the side of the splint (7), a first extension plate (22) and a second extension plate (24) symmetrically slidably arranged on the side of the splint (7), and a first bidirectional threaded rod (29) and a second bidirectional threaded rod (33) rotatably connected to the inner side of the splint (7). The splint (7) switches between different clamping positions for clamping by self-rotation. When the first bidirectional threaded rod (29) rotates, it drives the two second extension plates (24) to move toward each other to extend the vertical clamping surface of the splint (7). When the first bidirectional threaded rod (29) rotates, it drives the second bidirectional threaded rod (33) to rotate. When the second bidirectional threaded rod (33) rotates, it drives the two first extension plates (22) to move toward each other to extend the horizontal clamping surface of the splint (7).

2. The fixture structure for a mechanical numerical control machine tool according to claim 1, characterized in that: The upper part of the clamp base (1) is symmetrically provided with an arc groove (2), the inner side of which is slidably provided with a first sliding block (3), and the first sliding block (3) is fixedly connected to the first adjustment box (4).

3. The fixture structure for a mechanical numerically controlled machine tool according to claim 2, characterized in that: A movable block (5) is slidably arranged on the inner side of the two first adjustment boxes (4) and the second adjustment box (15), and a first threaded rod (6) is rotatably connected to the inner side of the two first adjustment boxes (4) and the second adjustment box (15), the first threaded rod (6) is threadedly connected to the movable block (5), and the movable block (5) is rotatably connected to the clamping plate (7).

4. The fixture structure for a mechanical numerical control machine tool according to claim 3, characterized in that: A rotating rod (25) is installed on the upper part of the movable block (5), the rotating rod (25) is rotatably connected to the clamping plate (7), the rotating rod (25) is threadedly connected to the first fixing bolt (26), and a plurality of fixing grooves (27) are formed on the upper part of the clamping plate (7), and the fixing grooves (27) are threadedly connected to the first fixing bolt (26).

5. The fixture structure for a mechanical numerical control machine tool according to claim 1, characterized in that: The side surface of the clamping plate (7) is symmetrically provided with a first opening groove (21), and the two first extension plates (22) are respectively slidably arranged on the inner side of the first opening groove (21); the side surface of the clamping plate (7) is symmetrically provided with a second opening groove (23), and the two second extension plates (24) are respectively slidably arranged on the inner side of the second opening groove (23).

6. The fixture structure for a mechanical numerically controlled machine tool according to claim 5, characterized in that: A first sliding groove (28) is provided on the inner side of the clamping plate (7), the first sliding groove (28) and the second opening groove (23) are connected to each other, a first bidirectional threaded rod (29) is rotatably connected to the inner side of the first sliding groove (28), a first sliding plate (30) is symmetrically slidably provided on the inner side of the first sliding groove (28), the first sliding plate (30) is fixedly connected to the second extension plate (24), the first sliding plate (30) is threadedly connected to the first bidirectional threaded rod (29), and a first bevel gear (31) is installed on the outer side of the first bidirectional threaded rod (29).

7. The fixture structure for a mechanical numerical control machine tool according to claim 6, characterized in that: A second sliding groove (32) is symmetrically provided on the inner side of the clamping plate (7), the second sliding groove (32) is connected to the first opening groove (21), a second bidirectional threaded rod (33) is rotatably connected between the inner sides of the two second sliding grooves (32), a second sliding plate (34) is slidably provided on the inner side of the second sliding groove (32), the second sliding plate (34) is fixedly connected to the first extension plate (22), the second sliding plate (34) is threadedly connected to the second bidirectional threaded rod (33), a second bevel gear (35) is installed on the outer side of the second bidirectional threaded rod (33), and the second bevel gear (35) is meshed with the first bevel gear (31).

8. The fixture structure for a mechanical numerical control machine tool according to claim 1, characterized in that: The inner side of the clamp base (1) is respectively provided with a first square groove (8) and a second square groove (12), the first square groove (8) and the second square groove (12) are interconnected, the first movable rod (9) is slidably arranged on the inner side of the first square groove (8), the second threaded rod (11) is rotatably connected to the clamp base (1), and the second movable rod (10) is movably connected to the first sliding block (3) at one end away from the first movable rod (9).

9. The fixture structure for a mechanical numerical control machine tool according to claim 8, characterized in that: A second sliding block (14) is slidably arranged on the inner side of the second square groove (12); the second sliding block (14) is fixedly connected to the second adjustment box (15); a spring (17) and a first telescopic rod (18) are respectively installed on the side of the second sliding block (14); a fixed block (16) is commonly installed at one end of the spring (17) and the first telescopic rod (18) away from the second sliding block (14); and the fixed block (16) is fixedly connected to the second square groove (12).

10. The fixture structure for a mechanical numerical control machine tool according to claim 5, characterized in that: The size of the opening of the first opening slot (21) matches the size of the first extension plate (22), and the size of the opening of the second opening slot (23) matches the size of the second extension plate (24).

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