Anti-deviation fixing tool for machining machine tool base

Abstract

The present invention discloses an anti-deviation fixing tool for machining a machine tool base, comprising a tool base and a placing plate. The placing plate is slidably arranged above the tool base, and a plurality of groups of side wall clamping assemblies are arranged on the top of the tool base. The side wall clamping assemblies comprise a base, a slide seat, a pressure block and a screw rod. The screw rod is rotatably arranged on the base, and the slide seat is threadedly sleeved on the screw rod. A rack assembly is arranged at each group of side wall clamping assemblies at the bottom of the placing plate. A first gear is rotatably arranged on the screw rod and a torsion spring is connected to the screw rod. A second gear is also fixed to an end of the screw rod close to the first gear. The rack assembly drives the first gear to rotate so that all pressure blocks press the side walls of the machine tool base and then switch to mesh with the second gear. After the lathe base is offset and placed on the placing plate, the present invention can make each group of pressure plates press the side walls of the lathe base with equal force, so that the lathe base can be positioned stably during surface machining.

Description

Technical Field

[0001] The invention relates to a tool, in particular to an anti-deviating fixing tool for machining a machine tool base. Background Art

[0002] The base is particularly important as the foundation of the machine tool. When processing the surface of the base, the bottom side of the base needs to be positioned and fixed by tooling to prevent the base from shifting during the surface processing.

[0003] The existing tooling positioning method for the machine tool base generally uses a bidirectional screw to drive a clamp to clamp and fix the side wall of the machine tool base, or uses multiple independent sets of tooling to press and fix the machine tool base. However, when the clamp or independent tooling fixes the machine tool base, the machine tool base needs to be placed correctly between the clamps or between multiple sets of independent fixing tooling. Otherwise, the clamp or independent tooling will cause uneven pressure when positioning the side wall of the machine tool base, affecting the surface processing of the machine tool base. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-deviation fixing tool for machining a machine tool base, so as to solve the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-deviation fixing tool for machining a machine tool base, comprising a tool base and a placement plate for placing a lathe base, the placement plate being slidably arranged above the tool base, an elastic support member being connected between the tool base and the placement plate, a plurality of side wall clamping assemblies being arranged on the top of the tool base and the surrounding side of the placement plate, the side wall clamping assemblies comprising a base, a slide seat, a pressure block and a screw rod, the screw rod being rotatably arranged on the base, the slide seat being threadedly sleeved on the screw rod, the pressure block being rotatably arranged on the top of the slide seat, and the rotation of the screw rod drives the pressure block to approach or move away The cam is provided with a toothed plate which is arranged on the bottom of the base and is meshed with the second toothed plate so that the cam is in contact with the first gear and the toothed plate is meshed with the second gear.

[0006] Preferably, the rack assembly includes a rack seat, a first rack and a second rack, the first rack is horizontally slidably arranged on the rack seat, the second rack is located at the outer end of the rack seat and is connected to the first rack by a connecting rod, the first rack moves downward to drive the first gear to rotate and drives the pressure block to press the side wall of the machine tool base through the screw rod, then slides out of engagement with the first gear, and the second rack meshes with the second gear after the first rack disengages from engagement with the first gear.

[0007] Preferably, a third gear meshingly connected to the second gear is rotatably sleeved at one end of the base, the first rack is located on a side of the second gear away from the third gear, and the second rack is located on a side of the third gear away from the second gear.

[0008] Preferably, a rack groove for horizontal sliding of the first rack is provided in the rack seat, a first spring for driving the first rack to slide toward the first gear is provided on the inner wall of the rack groove, and a driving structure for driving the first rack to slide toward the side away from the first gear is provided on the tooling base.

[0009] Preferably, a seat hole for inserting a rack seat is provided on the tooling base, and the rack seat is slidably arranged in the seat hole. The driving structure includes a support rod arranged in the seat hole, a first inclined surface is provided at the bottom of the first rack, and an entry groove is provided at the bottom of the rack seat for the support rod to slide into the rack groove and abut against the first inclined surface.

[0010] Preferably, a sliding groove for the connecting rod to slide is provided in the placement plate, a first opening connected to the sliding groove is provided at the top of the rack seat, a first extension rod is provided at the top of the first rack, the top of the first extension rod passes through the first opening and is fixedly connected to the connecting rod, a second extension rod is provided at the top of the second rack, and a second opening is also provided at the bottom of the placement plate for the second extension rod to extend into the sliding groove and be connected to the connecting rod.

[0011] Preferably, limit plates are provided on both sides of the first rack, first limit grooves for sliding limit plates are provided on both inner walls of the rack groove, second limit grooves are provided on both inner walls of the first limit groove, positioning plates for inserting into the second limit grooves are slidably provided on both sides of the first rack, and an unlocking component for driving the positioning plate to disengage from the second limit groove is provided in the first rack.

[0012] Preferably, the unlocking assembly includes a second spring and a U-shaped rod, the first rack is provided with a plate groove for the positioning plate to slide, the second spring is arranged between the two groups of positioning plates, each group of positioning plates is provided with a protrusion, the U-shaped rod is slidably arranged in the first rack toward the side close to or away from the protrusion, the end of the U-shaped rod away from the protrusion is provided with a protrusion, the end of the protrusion away from the U-shaped rod passes through to the outside of the first rack, and the protrusion is provided with a second inclined surface for the open end of the U-shaped rod to abut against.

[0013] Preferably, a limit plate groove is provided in the tooling base, a support base is slidably provided in the limit plate groove, a drop rod opening is provided on the support base at the position of each group of rack seats, and a cylinder for driving the support base to slide is provided on one side of the tooling base.

[0014] Preferably, a plurality of guide rods are provided at the bottom of the placement plate, the bottom of the guide rods penetrates the tooling base and forms a sliding connection, the elastic support member is a third spring sleeved on the guide rods, and a limit plate is provided at the bottom end of the guide rods.

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

[0016] The tooling base is located on the periphery of the placement plate and is provided with multiple sets of side wall clamping components, which can stably position the machine tool base to be processed;

[0017] The side wall clamping assembly includes a base, a sliding seat, a pressure block and a screw rod, one end of the screw rod is rotatably connected to a first gear, and a torsion spring is connected between the first gear and the screw rod. After the machine tool base is placed on the placement plate, the first rack is driven to move downward, which will drive the first gear to rotate and drive the pressure block to press the side wall of the machine tool base through the screw rod. The setting of the torsion spring can prevent the machine tool base from being offset. After a group of pressure blocks press the side wall of the machine tool base first, the first rack can continue to drive the first gear to rotate and make the pressure block continue to press the machine tool base until all the pressure blocks press the side wall of the machine tool base and then the first rack is disengaged from the first gear, and the second rack is meshed with the third gear. At this time, the torsion spring will drive the first gear to reverse and return to its initial state. Even if the machine tool base is offset, all pressure blocks can press the side wall of the machine tool base with the same force and achieve rapid positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0021] Figure 3 is a schematic diagram for explaining the position of the second opening of the present invention;

[0022] Figure 4 is an exploded schematic diagram of the present invention highlighting the connection between the first gear and the lead screw via a torsion spring;

[0023] Figure 5 It is an exploded schematic diagram highlighting the first rack, the second rack and the rack seat of the present invention;

[0024] Figure 6 is a schematic diagram for explaining the present invention, which highlights the plate groove, the convex rod groove and the moving area;

[0025] Figure 7 is an exploded schematic diagram of the present invention highlighting the positioning plate, the second spring and the U-shaped rod;

[0026] Figure 8 It is an exploded schematic diagram highlighting the supporting base plate and the tooling base of the present invention.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Tooling base; 2. Placement plate; 3. Guide rod; 4. Third spring; 5. Limit plate; 6. Side wall clamping assembly; 601. Base; 602. Sliding seat; 603. Press block; 604. Screw rod; 7. Slider slot; 8. Rack assembly; 801. First rack; 802. Second rack; 803. Connecting rod; 804. Rack seat; 9. Torsion spring; 10. Rotating rod; 11. Rotating plate; 12. Expanding hole; 13. First gear; 14. Second gear; 15. Third gear; 16. Rack slot; 17. First spring; 18. Seat hole; 19. Push rod; 20. Entry groove; 21. First inclined surface; 22. First opening; 23. First extension rod; 24. Second extension rod; 25. Second opening; 26. Limit plate; 27. First limit groove; 28. Second limit groove; 29. ​​Positioning plate; 30. Unlocking assembly; 301. Second spring; 302. U-shaped rod; 31. Plate groove; 32. Bump; 33. Protruding rod; 34. Second inclined surface; 35. Protruding rod groove; 36. Moving area; 37. Limit plate groove; 38. Support bottom plate; 39. Rod drop mouth; 40. Cylinder. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-8 , the present invention provides a technical solution:

[0031] See also Figure 1 , 23. An anti-deviation fixing tool for machining a machine tool base, comprising a tool base 1 and a placement plate 2 for placing a lathe base, wherein an elastic support member is connected between the tool base 1 and the placement plate 2, and a plurality of guide rods 3 are arranged at the bottom of the placement plate 2, and the bottom of the guide rods 3 penetrates through the tool base 1 and forms a sliding connection, and the placement plate 2 is arranged on the tool base 1 to slide up and down through the cooperation of the guide rods 3 and the tool base 1, wherein the elastic support member is a third spring 4 sleeved on the guide rods 3, and a limit plate 5 is arranged at the bottom end of the guide rods 3, and in the initial state, the third spring 4 supports the placement plate 2 at the highest position, and the limit plate 5 can prevent the guide rods 3 from leaving the tool base 1.

[0032] See also Figure 1 , 2 , a plurality of side wall clamping assemblies 6 are arranged on the top of the tooling base 1 and the surrounding side of the placement plate 2, wherein the side wall clamping assemblies 6 on the tooling base 1 can be arranged in a plurality of groups corresponding to each side wall of the machine tool base, and the setting position of the side wall clamping assemblies 6 can be adjusted according to the polygonal machine tool base. The basic base in the present application takes a quadrilateral as an example, and the long side wall of the lathe base is provided with three groups of side wall clamping assemblies 6 and the short side is provided with one group of side wall clamping assemblies 6. After the lathe base is placed on the placement plate 2, the placement plate 2 is driven to move downward, so that the side wall clamping assemblies 6 slide toward the side close to the machine tool base at the same time and press together. The side wall of the machine tool base is tightened, wherein the side wall clamping assembly 6 includes a base 601, a slide 602, a pressure block 603 and a screw rod 604. A slider groove 7 for the slider to slide is provided in the base 601. The screw rod 604 passes through the slider groove 7 and is rotatably set on the base 601. The slide 602 is threadedly sleeved on the screw rod 604. A rotating rod 10 is provided at the bottom of the pressure block 603. The bottom end of the rotating rod 10 is inserted into the slide 602 to form a rotating connection. When the machine tool base is offset, after the pressure block 603 contacts the machine tool base, the slide 602 continues to move, which will cause the pressure block 603 to rotate and better press fit on the side wall of the machine tool base.

[0033] See also Figure 1 , 24. The screw rod 604 rotates to drive the pressure block 603 to slide toward or away from one side of the placement plate 2 to press the machine tool base. The bottom of the placement plate 2 is located at each group of side wall clamping assemblies 6 and a rack assembly 8 is provided. One end of the screw rod 604 is located at the outer end of the base 601 and extends to the bottom of the placement plate 2. The end of the screw rod 604 located below the placement plate 2 is provided with a first gear 13 meshing with the rack assembly 8. The first gear 13 is rotatably set on the screw rod 604 and a torsion spring 9 is connected to the screw rod 604, wherein a rotating hole is provided at one end of the screw rod 604, and a rotating rod 10 inserted into the rotating hole is provided at one end of the first gear 13. The torsion spring 9 is sleeved on the rotating rod 10, and one end of the torsion spring 9 is inserted into the rotating rod 1 0, and the other end is inserted into the inner wall of the rotating hole. The diameter of the rotating hole is larger than the rotating rod 10, leaving space for the torsion spring 9. A reamer 12 is provided at the opening of the rotating hole. The first gear 13 is axially provided with a turntable 11 which is rotatably connected with the reamer 12. When the placement plate 2 moves downward and drives the first gear 13 to rotate through the first rack 801, the first gear 13 drives the lead screw 604 to rotate through the torsion force of the torsion spring 9 until the pressure block 603 presses the side wall of the machine tool base. At this time, some pressure blocks 603 have not pressed the side wall of the machine tool base. The placement plate 2 continues to move downward, and the torsion spring 9 corresponding to the first gear 13 that has pressed the side wall of the machine tool base will be deformed until all pressure blocks 603 press the side wall of the machine tool base.

[0034] See also Figure 3 In order to balance the force of all the pressure blocks 603 pressing the machine tool base and remove the torque of all the torsion springs 9, a second gear 14 is fixed to the end of the screw rod 604 close to the first gear 13. The rack assembly 8 drives the first gear 13 to rotate so that all the pressure blocks 603 press the side wall of the machine tool base and then switch to mesh with the second gear 14 to restore the torsion spring 9 to its initial state.

[0035] See also Figure 2 , 4 , 5. The rack assembly 8 includes a rack seat 804, a first rack 801 and a second rack 802. The first rack 801 is horizontally slidably arranged on the rack seat 804. The second rack 802 is located at the outer end of the rack seat 804 and is connected to the first rack 801 by a connecting rod 803. The first rack 801 moves downward to drive the first gear 13 to rotate and drives the pressure block 603 to press the side wall of the machine tool base through the screw rod 604, and then slides out of engagement with the first gear 13. After the first rack 801 is disengaged from the first gear 13, the second rack 802 is engaged with the second gear 14. After the second rack 802 is engaged with the second gear 14, the first rack 801 is disengaged from the first gear 13, and the torsion spring 9 will drive the first gear 13 to reverse and remove the torque to return to the initial state.

[0036] See also Figure 2 , 5In order to ensure that the second rack 802 is engaged with the second gear 14 and the driving screw 604 is not reversed to cause the pressure block 603 to separate from the lathe base, a third gear 15 meshing with the second gear 14 is rotatably sleeved at one end of the base 601, the first rack 801 is located on the side of the second gear 14 away from the third gear 15, and the second rack 802 is located on the side of the third gear 15 away from the second gear 14. The second rack 802 moves downward to drive the third gear 15 to rotate, and then drives the second gear 14 to rotate through the third gear 15, so that the direction in which the third gear 15 drives the second gear 14 to rotate is the same as the direction in which the first rack 801 moves downward to drive the first gear 13 to rotate and then drives the second gear 14 to rotate.

[0037] See also Figure 2 , 5 A rack groove 16 for the horizontal sliding of the first rack 801 is provided in the rack seat 804, and a first spring 17 for driving the first rack 801 to slide toward the side of the first gear 13 is provided on the inner wall of the rack groove 16, wherein multiple groups of first springs 17 are provided, and a driving structure for driving the first rack 801 to slide toward the side away from the first gear 13 is provided on the tooling base 1. In the initial state, the first spring 17 drives the first rack 801 to move inward and outward in the rack groove 16 and keep meshing with the first gear 13. After all the pressing blocks 603 are pressed against the side wall of the machine tool base, the first rack 801 is driven by the driving structure to move inward in the rack groove 16 and disengage from the meshing with the first gear 13, so that the second rack 802 is meshed with the third gear 15, thereby restoring the torsion spring 9 to the initial state.

[0038] See also Figure 5 , 8 The specific method of driving the first rack 801 to move toward the rack groove 16 is as follows: a seat hole 18 for inserting the rack seat 804 is provided on the tooling base 1, and the rack seat 804 is slidably arranged in the seat hole 18, and the driving structure includes a push rod 19 arranged in the seat hole 18, and a first inclined surface 21 is provided at the bottom of the first rack 801, and an entry groove 20 is provided at the bottom of the rack seat 804 for the push rod 19 to slide into the rack groove 16 and abut against the first inclined surface 21. After all the pressure blocks 603 press the side wall of the machine tool base, the rack assembly 8 continues to move downward, and the push rod 19 will be inserted into the rack groove 16 through the entry groove 20 and abut against the first inclined surface 21 of the first rack 801, driving the first rack 801 to slide into the rack groove 16 and disengage from the first gear 13.

[0039] See also Figure 2 , 3, 5. The meshing connection between only one set of racks and gears occurs at each moment between the first rack 801 and the first gear 13, and between the second rack 802 and the third gear 15: a sliding groove (not shown in the figure, located inside the placement plate 2) is provided in the placement plate 2 for the connecting rod 803 to slide, a first opening 22 connected to the sliding groove is provided at the top of the rack seat 804, a first extension rod 23 is provided at the top of the first rack 801, the top of the first extension rod 23 passes through the first opening 22 and is fixedly connected to the connecting rod 803, a second extension rod 24 is provided at the top of the second rack 802, and a second opening 25 is provided at the bottom of the placement plate 2 for the second extension rod 24 to extend into the sliding groove and connect with the connecting rod 803, wherein the first opening 22 has a space for the first extension rod 23 to slide horizontally, and the second opening 25 has a space for the second extension rod 24 to slide horizontally, and the first rack 801 and the second rack 802 are fixedly connected by the connecting rod 803 to realize common movement.

[0040] See also Figure 5 In order to prevent the first rack 801 from being disengaged when being pushed by the first spring 17 to move out of the rack groove 16, limiting plates 26 are provided on both sides of the first rack 801, and first limiting grooves 27 for sliding of the limiting plates 26 are provided on both sides of the inner walls of the rack groove 16; in order to avoid the instability caused by directly pushing the first rack 801 to mesh with the first gear 13 through the first spring 17, second limiting grooves 28 are provided on both sides of the inner walls of the first limiting groove 27, and positioning plates 29 for inserting into the second limiting grooves 28 are slidably provided on both sides of the first rack 801, When the first rack 801 moves downward to drive the first gear 13 to rotate and move the pressure block 603 toward the side of the machine tool base, the positioning plate 29 is inserted into the second limiting groove 28 to limit the sliding of the first rack 801. The first rack 801 is provided with an unlocking component 30 for driving the positioning plate 29 to disengage from the second limiting groove 28. After all the pressure blocks 603 press the machine tool base, the positioning plate 29 is driven to disengage from the second limiting groove 28 through the unlocking component 30, so that the subsequent support rod 19 can be abutted against the first inclined surface 21 to enable the first rack 801 to slide and disengage from the meshing with the first gear 13.

[0041] See also Figure 5-7The unlocking assembly 30 specifically includes a second spring 301 and a U-shaped rod 302. The first rack 801 is provided with a plate groove 31 for the positioning plate 29 to slide. The second spring 301 is arranged between the two groups of positioning plates 29. Each group of positioning plates 29 is provided with a protrusion 32. The U-shaped rod 302 is slidably arranged in the first rack 801 toward the side close to or away from the protrusion 32. The end of the U-shaped rod 302 away from the protrusion 32 is provided with a protrusion 33. The end of the protrusion 33 away from the U-shaped rod 302 passes through the outside of the first rack 801. The protrusion 32 is provided with a second inclined surface 34 for the open end of the U-shaped rod 302 to abut against. A rack 801 is provided with a moving area 36 for the U-shaped rod 302 and the protrusion 32 to slide. The first rack 801 is also provided with a protrusion groove 35 for the protrusion 33 to slide. The protrusion 33 passes through the first rack 801 from the first inclined surface 21 through the protrusion groove 35. Before the abutment rod 19 contacts the first inclined surface 21, it will first abut against the protrusion 33 and drive the protrusion 33 to move toward the first rack 801, thereby driving the U-shaped rod 302 to move so that one end of the U-shaped rod 302 abuts against the second inclined surfaces 34 of the two groups of protrusions 32, driving the two side positioning plates 29 to move toward the side close to each other and disengage from the second limiting groove 28.

[0042] See also Figure 2 , 4 , 5, 7, 8, in order to prevent the rack assembly 8 from moving downward during the recovery process of the torsion spring 9 after all the pressure blocks 603 are pressed against the side walls of the machine tool base, a limit plate groove 37 is provided in the tooling base 1, and a support base 38 is slidably provided in the limit plate groove 37. The support base 38 is provided with a drop rod opening 39 at the position of each group of rack seats 804, and a cylinder 40 for driving the support base to slide is provided on one side of the tooling base 1. After the first rack 801 is disengaged from the first gear 13, the second rack 802 is just engaged with the third gear 15. At this time, the bottom of the rack seat 804 is attached to the top of the support base 38 and is supported. At this time, the torsion spring 9 that has been deformed makes a recovery motion, and the second rack 802 and the third gear are engaged. Under the meshing action of 15, the inertia of the torsion spring 9 that drives the first gear 13 to rotate will not drive the screw 604 to rotate, ensuring that the pressure block 603 and the machine tool base remain in a pressed state. After all torsion springs 9 return to their initial state, the cylinder 40 drives the support base plate 38 to slide, so that all screw openings are aligned with the rack seat 804, so that the gravity of the machine tool base acts on the second rack 802 through the placement plate 2, and the meshing connection between the second rack 802 and the third gear 15 limits the reversal of the screw 604, so that the pressure block 603 continues to maintain a state of pressing the machine tool base. It should be noted that: the support base plate 38 is in a mouth shape, which can avoid interference when the guide rod 3 passes through the tooling base 1 and slides.

[0043] See also Figure 1-8When the device is in use, the machine tool base is placed on the placement plate 2, and the placement plate 2 is driven downward by the gravity of the machine tool base. The downward movement of the placement plate 2 will drive the rack assembly 8 to move downward. The downward movement of the rack assembly 8 first causes the first rack 801 to drive the first gear 13 to rotate. The rotation of the first gear 13 drives the screw rod 604 to rotate through the setting of the torsion spring 9. The rotation of the screw rod 604 will drive the slide 602 to slide toward one side of the machine tool base. Due to the positional offset of the machine tool base placed on the placement plate 2, multiple groups of pressure blocks 603 will be pressed against the side wall of the machine tool base at different times. In one or more groups of pressure blocks 603, which have been pressed against When the side wall of the machine tool base is pressed, the placement plate 2 continues to move downward, and the first gear 13 corresponding to the pressure block 603 that has pressed the side wall of the machine tool base will continue to rotate to deform the torsion spring 9, and the corresponding screw rod 604 will not continue to rotate, while the first gear 13 corresponding to the other pressure blocks 603 that press the side wall of the machine tool base continues to rotate and drives the screw rod 604 to rotate through the torsion spring 9 until all the pressure blocks 603 press the side wall of the machine tool base. At this time, the rack seat 804 continues to move downward, and the push rod 19 in the drop rod hole will enter the rack groove 16 through the entry groove 20. The push rod 19 first abuts against the protruding rod 33 and drives the protruding rod 33 to move toward the first rack 801. The U-shaped rod 302 and the second inclined surface 34 abut against each other, driving the positioning plates 29 on both sides to disengage from the second limiting groove 28. The rack seat 804 continues to move downward, and the abutting rod 19 abuts against the first inclined surface 21, so that the first rack 801 moves toward the inside of the rack groove 16 and disengages from the meshing with the first gear 13. When the first rack 801 slides, the second rack 802 moves in the same direction following the first rack 801 and meshes with the third rack. When the second rack 802 meshes with the third gear 15, the bottom of the base 601 just contacts the top of the supporting bottom plate 38. At this time, all the deformed torsion springs 9 will undergo a restoring motion. After returning to the initial state, all the pressure blocks 603 are in a state of being in contact with the side walls of the machine tool base and are not subjected to force. The cylinder 40 then drives the supporting base plate 38 to slide to the screw mouth and face the rack seat 804. The placement plate 2 will move downward to a certain extent, so that the second rack 802 is engaged with the third gear 15 and provides torque for the rotation of the third gear 15, and transmits the torque to the screw 604. Under the force of the machine tool base, the pressure blocks 603 will continue to press the side walls of the machine tool base, and the clamping force of each group of pressure blocks 603 on the side walls of the machine tool base is the same, thereby improving the stability of the side wall clamping assembly 6 in positioning the machine tool base.

[0044] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-deviation fixing tool for machining a machine tool base, characterized in that: The tool base (1) comprises a tooling base (1) and a placement plate (2) for placing a lathe base, wherein the placement plate (2) is slidably arranged above the tooling base (1), an elastic support member is connected between the tooling base (1) and the placement plate (2), a plurality of side wall clamping assemblies (6) are arranged on the top of the tooling base (1) and the surrounding side of the placement plate (2), the side wall clamping assemblies (6) comprising a base (601), a slide seat (602), a pressure block (603) and a screw rod (604), wherein the screw rod (604) is rotatably arranged on the base (601), the slide seat (602) is threadedly sleeved on the screw rod (604), the pressure block (603) is rotatably arranged on the top of the slide seat (602), and the screw rod (604) rotates to drive the pressure block (603) to slide on the base (601) toward or away from the placement plate (2). 1), a rack assembly (8) is provided at the bottom of the placement plate (2) at each set of side wall clamping assemblies (6), one end of the screw rod (604) is located at the outer end of the base (601) and extends to the bottom of the placement plate (2), and the end of the screw rod (604) located below the placement plate (2) is provided with a first gear (13) meshing with the rack assembly (8), the first gear (13) is rotatably arranged on the screw rod (604) and a torsion spring (9) is connected between the screw rod (604), and a second gear (14) is fixed to the end of the screw rod (604) close to the first gear (13), and the rack assembly (8) drives the first gear (13) to rotate so that all the pressure blocks (603) press the side walls of the machine tool base and then switch to meshing with the second gear (14) and restore the torsion spring (9) to an initial state; The rack assembly (8) comprises a rack seat (804), a first rack (801) and a second rack (802), wherein the first rack (801) is horizontally slidably arranged on the rack seat (804), the second rack (802) is located at the outer end of the rack seat (804) and is connected to the first rack (801) by a connecting rod (803), the first rack (801) moves downward to drive the first gear (13) to rotate and drives the pressing block (603) to press the side wall of the machine tool base through the screw rod (604), and then slides and disengages from the first gear (13), and the second rack (802) meshes with the second gear (14) after the first rack (801) disengages from the first gear (13). A third gear (15) meshingly connected to the second gear (14) is rotatably sleeved at one end of the base (601); the first rack (801) is located on a side of the second gear (14) away from the third gear (15); and the second rack (802) is located on a side of the third gear (15) away from the second gear (14); The rack seat (804) is provided with a rack groove (16) for the first rack (801) to slide horizontally, the inner wall of the rack groove (16) is provided with a first spring (17) for driving the first rack (801) to slide toward the first gear (13), and the tooling base (1) is provided with a driving structure for driving the first rack (801) to slide toward a side away from the first gear (13); The tooling base (1) is provided with a seat hole (18) for inserting a rack seat (804), the rack seat (804) is slidably arranged in the seat hole (18) up and down, the driving structure includes a push rod (19) arranged in the seat hole (18), the first rack (801) is provided with a first inclined surface (21) at the bottom, and the rack seat (804) is provided with an entry groove (20) at the bottom for the push rod (19) to slide into the rack groove (16) and abut against the first inclined surface (21); The placement plate (2) is provided with a sliding groove for the connecting rod (803) to slide, the top of the rack seat (804) is provided with a first opening (22) connected to the sliding groove, the top of the first rack (801) is provided with a first extension rod (23), the top of the first extension rod (23) passes through the first opening (22) and is fixedly connected to the connecting rod (803), the top of the second rack (802) is provided with a second extension rod (24), and the bottom of the placement plate (2) is also provided with a second opening (25) for the second extension rod (24) to extend into the sliding groove and connect to the connecting rod (803); Limiting plates (26) are provided on both sides of the first rack (801), first limiting grooves (27) for sliding the limiting plates (26) are provided on both side inner walls of the rack groove (16), second limiting grooves (28) are provided on both side inner walls of the first limiting groove (27), positioning plates (29) for inserting into the second limiting grooves (28) are slidably provided on both sides of the first rack (801), and an unlocking component (30) for driving the positioning plate (29) to disengage from the second limiting groove (28) is provided in the first rack (801); The unlocking assembly (30) comprises a second spring (301) and a U-shaped rod (302); the first rack (801) is provided with a plate groove (31) for the positioning plate (29) to slide; the second spring (301) is arranged between two groups of positioning plates (29); each group of positioning plates (29) is provided with a protrusion (32); the U-shaped rod (302) is slidably arranged in the first rack (801) toward a side close to or away from the protrusion (32); an end of the U-shaped rod (302) away from the protrusion (32) is provided with a protrusion (33); an end of the protrusion (33) away from the U-shaped rod (302) passes through the outside of the first rack (801); and the protrusion (32) is provided with a second inclined surface (34) for abutting against an open end of the U-shaped rod (302).

2. The anti-deviation fixing tool for machining a machine tool base according to claim 1, characterized in that: A limit plate groove (37) is provided in the tooling base (1), a support base (38) is slidably provided in the limit plate groove (37), a rod drop opening (39) is provided on the support base (38) at the position of each set of rack seats (804), and a cylinder (40) for driving the support base to slide is provided on one side of the tooling base (1).

3. The anti-deviation fixing tool for machining a machine tool base according to claim 2, characterized in that: A plurality of guide rods (3) are provided at the bottom of the placement plate (2); the bottom of the guide rods (3) penetrates the tooling base (1) to form a sliding connection; the elastic support member is a third spring (4) sleeved on the guide rods (3); and a limit plate (5) is provided at the bottom of the guide rods (3).

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