Machine tool clamping device

Abstract

The utility model belongs to the technical field of machine tool machining, and particularly relates to a machine tool clamping device which comprises a machine tool shell and a motor arranged in the machine tool shell, an output shaft of the motor is fixedly connected with a two-way lead screw, and the surface of the two-way lead screw is symmetrically connected with two limiting blocks in a threaded mode. The machine tool further comprises a quick release assembly arranged in the machine tool shell, the quick release assembly comprises a plurality of electric push rods which are evenly, symmetrically and fixedly connected to the inner wall of the machine tool shell, and a plurality of limiting plates are evenly and symmetrically arranged on the machine tool shell. The two force application rods can be extruded through cooperation of force application rods and sliding blocks, the two sliding blocks can slide in limiting grooves in the direction away from positioning blocks due to stress, limiting on the positioning blocks is loosened, the limiting plate is dismounted, meanwhile, a limiting assembly is additionally arranged, and through cooperation of a sliding groove and a fixing block in the limiting assembly, the limiting plate can be dismounted, and the positioning plate can be dismounted. And the sliding grooves limit the limiting plates through the fixing blocks, so that shaking and inclined clamping are prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool processing, and particularly relates to a machine tool clamping device. Background Art

[0002] A drilling machine tool is a machine tool that uses a drill bit to drill holes on a workpiece. It is widely used in industrial machinery production. When drilling holes in equipment parts, they need to be clamped and fixed with a fixture. The clamping efficiency of the fixture directly affects the processing efficiency of the machine tool.

[0003] After investigation, the publication (announcement) number: CN218800643U discloses a drilling machine clamping device. This technology discloses "including a frame, the bottom end of the interior of the frame is fixedly connected to an electric push rod, and the telescopic end of the electric push rod is fixedly connected to a platform and other technical solutions; it has the function of clamping workpieces of different sizes, improving the practicality of the device, and the threaded connection can ensure the stability of the workpiece during drilling" and other technical effects;

[0004] However, after the fixture has been clamping the part for a long time, the pressure will cause the fixture to deform, making the fixture unstable during clamping. In addition, this clamping device cannot replace the fixture.

[0005] In order to solve the above problems, this application proposes a machine tool clamping device. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a machine tool clamping device, which has the feature of being able to dismantle the clamp.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a machine tool clamping device, comprising a machine tool housing and a motor disposed inside the machine tool housing, wherein the motor output shaft is fixedly connected to a bidirectional screw rod, the surface of the bidirectional screw rod is symmetrically threaded with two limit blocks, and further comprising a quick-release assembly disposed inside the machine tool housing;

[0008] The quick-release assembly includes several electric push rods that are evenly and symmetrically fixedly connected to the inner wall of the machine tool housing, and the machine tool housing is evenly and symmetrically provided with several limit plates, the output shaft of the electric push rod is fixedly connected with a positioning block, the limit plate is provided with a positioning groove on the side facing the electric push rod, and the positioning block is inserted into the interior of the positioning groove, and two limit grooves are symmetrically provided inside the limit plate, and the two limit grooves are mutually penetrated with the positioning groove, and a slider is provided inside each of the limit grooves, and the slider is slidably connected to the limit groove and the limit plate through the limit groove, and two communicating grooves are symmetrically provided inside the limit plate, and the two communicating grooves are mutually penetrated with the two limit grooves, and a force rod is provided inside each communicating groove, and the force rod is rotatably connected to the limit plate through a bearing, and a fixed groove is provided inside the slider, and the force rod is inserted into the fixed groove at one end close to the slider.

[0009] As a preferred embodiment of the machine tool clamping device of the present invention, the communicating groove is a parallelogram structure, and the fixing groove is a trapezoidal structure.

[0010] As a preferred embodiment of the machine tool clamping device of the present invention, a spring is provided inside each of the limiting grooves, and two ends of the spring are respectively in contact with the limiting plate and the sliding block.

[0011] As a preferred machine tool clamping device of the present invention, a roller is provided at one end of the force application rod inserted into the fixing groove, and the roller rolls with the slider through the fixing groove.

[0012] As a preferred embodiment of the present invention, a machine tool clamping device further includes a limiting assembly arranged inside the machine tool housing;

[0013] The limiting assembly includes a plurality of slide grooves evenly opened inside the machine tool housing, and a fixed block is provided inside each of the slide grooves. The fixed block is slidably connected to the machine tool housing through the slide groove, and the end of the fixed block away from the machine tool housing is fixedly connected to the limiting plate.

[0014] As a preferred machine tool clamping device of the present invention, a drainage trough is provided inside the machine tool housing, and the drainage trough is communicated with each of the chute.

[0015] Compared with the prior art, the beneficial effect of the present invention is: by adding a quick-release component to the present application, the cooperation of the force rod and the slider can be utilized to squeeze the two force rods, and the two sliders will slide in the direction away from the positioning block inside the limit groove due to the force, thereby loosening the limit on the positioning block and realizing the removal of the limit plate. At the same time, a limit component is added, and the cooperation of the slide groove and the fixed block can be utilized. The slide groove limits the limit plate through the fixed block to prevent shaking and crookedness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the horizontal cross-section of the machine tool housing in the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the horizontal cross-section of the limiting plate of the utility model;

[0020] Figure 4 This is a structural diagram of a vertical cross-section of the slider in the present invention;

[0021] In the picture:

[0022] 1. Machine tool housing; 11. Motor; 12. Bidirectional screw; 13. Limit block;

[0023] 2. Quick release assembly; 21. Electric push rod; 22. Limit plate; 23. Positioning block; 24. Positioning slot; 25. Limit slot; 26. Spring; 27. Connecting slot; 28. Force rod; 29. ​​Slider; 210. Fixing slot; 211. Roller;

[0024] 3. Limiting assembly; 31. Fixing block; 32. Slide; 33. Drain chute. DETAILED DESCRIPTION

[0025] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figure 1 As shown;

[0028] A machine tool clamping device includes a machine tool housing 1 and a motor 11 disposed inside the machine tool housing 1. The output shaft of the motor 11 is fixedly connected to a bidirectional screw rod 12. The surface of the bidirectional screw rod 12 is symmetrically threaded with two limit blocks 13.

[0029] In this embodiment: After investigation, the public (announcement) number: CN218800643U discloses a drilling machine clamping device. In order to solve the technical problems existing in this prior art, as disclosed in the background technology above, "after the fixture clamps the parts for a long time, the pressure will cause the fixture to deform, making the fixture not stable enough when clamping, and this clamping device cannot replace the fixture." This problem is obviously a real problem that is difficult to solve. In view of this, in order to solve this technical problem, a quick-release component 2 and a limit component 3 are added on this basis.

[0030] More specifically:

[0031] like Figures 1 to 4 As shown;

[0032] Combining the above:

[0033] In order to realize quick release of the clamp, the machine tool clamping device further includes a quick release assembly 2 arranged inside the machine tool housing 1;

[0034] The quick-release assembly 2 includes a plurality of electric push rods 21 uniformly and symmetrically fixedly connected to the inner wall of the machine tool housing 1. The machine tool housing 1 is uniformly and symmetrically provided with a plurality of limit plates 22. The output shaft of the electric push rod 21 is fixedly connected with a positioning block 23. The limit plate 22 has a positioning groove 24 on the side facing the electric push rod 21. The positioning block 23 is inserted into the interior of the positioning groove 24. The interior of the limit plate 22 is symmetrically provided with two limit grooves 25. The two limit grooves 25 are mutually connected with the positioning groove 24. Each limit groove 25 is provided with a The slider 29 is slidably connected to the limit groove 25 and the limit plate 22. Two connecting grooves 27 are symmetrically opened inside the limit plate 22. The two connecting grooves 27 are interconnected with the two limit grooves 25. A force rod 28 is provided inside each connecting groove 27. The force rod 28 is rotatably connected to the limit plate 22 through the bearing. A fixed groove 210 is opened inside the slider 29. The end of the force rod 28 close to the slider 29 is inserted into the fixed groove 210. The connecting groove 27 is a parallelogram structure, and the fixed groove 210 is a trapezoidal structure.

[0035] In this embodiment: when the clamp needs to be removed, the two force rods 28 are squeezed in the direction of the positioning block 23, and the two force rods 28 will rotate inside the connecting groove 27 through the bearing, and the two sliders 29 will slide inside the limiting groove 25 in the direction away from the positioning block 23 due to the force, thereby loosening the limit on the positioning block 23 and realizing the removal of the limiting plate 22.

[0036] It should be noted that:

[0037] Going further:

[0038] In an optional embodiment, a spring 26 is provided inside each limiting groove 25 , and two ends of the spring 26 are respectively in contact with the limiting plate 22 and the slider 29 .

[0039] In this embodiment: when a new limit plate 22 needs to be loaded, the positioning block 23 is inserted into the positioning groove 24. The positioning block 23 will squeeze the two sliders 29, and the spring 26 will be compressed until the positioning block 23 no longer limits the two sliders 29. The spring 26 will push the two sliders 29 out due to elastic potential energy, limiting the positioning block 23, and thus realizing the installation of the limit plate 22.

[0040] It should be noted that:

[0041] Going further:

[0042] In an optional embodiment, a roller 211 is provided at one end of the force applying rod 28 inserted into the fixing groove 210 , and the roller 211 rolls with the slider 29 through the fixing groove 210 .

[0043] In this embodiment, when the force applying rod 28 applies force to the slider 29 , the roller 211 rolls inside the fixing groove 210 , thereby reducing friction between the force applying rod 28 and the slider 29 .

[0044] Going further:

[0045] In an optional embodiment, the machine tool further includes a limit assembly 3 disposed inside the machine tool housing 1;

[0046] The limiting assembly 3 includes several slide grooves 32 evenly opened inside the machine tool housing 1, and a fixed block 31 is provided inside each slide groove 32. The fixed block 31 is slidably connected to the machine tool housing 1 through the slide groove 32. The end of the fixed block 31 away from the machine tool housing 1 is fixedly connected to the limiting plate 22. A drain trough 33 is opened inside the machine tool housing 1, and the drain trough 33 is communicated with each slide groove 32.

[0047] In this embodiment: when clamping the parts, the fixed block 31 will move with the limit plate 22, and the slide 32 will limit the limit plate 22 through the fixed block 31 to prevent shaking and crooked clamping. Debris falling into the slide 32 can be discharged through the drain trough 33.

[0048] The working principle and use process of the present invention are as follows: when the clamp needs to be removed, the two force-applying rods 28 are squeezed in the direction of the positioning block 23, and the two force-applying rods 28 will rotate inside the connecting groove 27 through the bearing, and the two sliders 29 will slide in the direction away from the positioning block 23 inside the limiting groove 25 due to the force, thereby releasing the limit of the positioning block 23, and realizing the removal of the limiting plate 22. When a new limiting plate 22 needs to be loaded, the positioning block 23 is inserted into the positioning groove 24, and the positioning block 23 will squeeze the two sliders 29, and the spring 26 will be compressed until The positioning block 23 no longer limits the two sliders 29. The spring 26 will push the two sliders 29 out due to the elastic potential energy, and limit the positioning block 23, thereby realizing the installation of the limit plate 22. When the force rod 28 applies force to the slider 29, the roller 211 will roll inside the fixed groove 210, reducing the friction between the force rod 28 and the slider 29. When the parts are clamped, the fixed block 31 will move with the limit plate 22, and the slide 32 will limit the limit plate 22 through the fixed block 31 to prevent shaking and crookedness. Debris falling into the slide 32 can be discharged through the drain chute 33.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A machine tool clamping device, comprising a machine tool housing (1) and a motor (11) arranged inside the machine tool housing (1), wherein the output shaft of the motor (11) is fixedly connected to a bidirectional screw rod (12), and the surface of the bidirectional screw rod (12) is symmetrically threaded with two limit blocks (13), characterized in that: It also includes a quick-release assembly (2) arranged inside the machine tool housing (1); The quick-release assembly (2) comprises a plurality of electric push rods (21) uniformly and symmetrically fixedly connected to the inner wall of the machine tool housing (1); the machine tool housing (1) is uniformly and symmetrically provided with a plurality of limiting plates (22); the output shaft of the electric push rod (21) is fixedly connected with a positioning block (23); the limiting plate (22) is provided with a positioning groove (24) on a side facing the electric push rod (21); the positioning block (23) is inserted into the interior of the positioning groove (24); the limiting plate (22) is symmetrically provided with two limiting grooves (25) inside, the two limiting grooves (25) are mutually connected with the positioning groove (24), and each limiting groove (25) is provided with a positioning block (23) on a side facing the electric push rod (21); the positioning block (23) is inserted into the interior of the positioning groove (24); A slider (29) is provided inside each groove (25), and the slider (29) is slidably connected to the limit groove (25) and the limit plate (22). Two communicating grooves (27) are symmetrically provided inside the limit plate (22), and the two communicating grooves (27) and the two limit grooves (25) are mutually connected. A force rod (28) is provided inside each communicating groove (27), and the force rod (28) is rotatably connected to the limit plate (22) through a bearing. A fixed groove (210) is provided inside the slider (29), and the force rod (28) is inserted into the fixed groove (210) at one end close to the slider (29).

2. The machine tool clamping device according to claim 1, characterized in that: The communicating groove (27) is a parallelogram structure, and the fixing groove (210) is a trapezoidal structure.

3. The machine tool clamping device according to claim 1, characterized in that: A spring (26) is provided inside each of the limiting grooves (25), and two ends of the spring (26) are respectively fitted with the limiting plate (22) and the slider (29).

4. The machine tool clamping device according to claim 2, characterized in that: One end of the force-applying rod (28) inserted into the fixing groove (210) is provided with a roller (211), and the roller (211) rolls with the slider (29) through the fixing groove (210).

5. The machine tool clamping device according to claim 1, characterized in that: It also includes a limiting component (3) arranged inside the machine tool housing (1); The limiting assembly (3) comprises a plurality of slide grooves (32) uniformly arranged inside the machine tool housing (1), a fixed block (31) is provided inside each of the slide grooves (32), the fixed block (31) is slidably connected to the machine tool housing (1) through the slide grooves (32), and the end of the fixed block (31) away from the machine tool housing (1) is fixedly connected to the limiting plate (22).

6. The machine tool clamping device according to claim 5, characterized in that: A drainage trough (33) is provided inside the machine tool housing (1), and the drainage trough (33) is communicated with each of the chute (32).

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