Quick release positioning fixture for machine tools

Abstract

The utility model relates to lathe fixture equipment technical field discloses a kind of quick dismounting positioning fixtures for lathe, including lathe, feed plate, fixture plate, carousel, screw rod, sliding block, locking plate and spring assembly, the inside fixed connection of square box has pneumatic cylinder, the outside fixed connection of locking plate has front stud, the inside of feed plate is equipped with front screw hole, the inside of feed plate is quickly equipped with rear screw hole.The utility model has the following advantages and effects: when needing to dismount fixture plate and fixture, worker closes pneumatic cylinder, drives locking plate to move back by the effect of pneumatic cylinder, makes front stud pull out from the inside of front screw hole, then worker pulls fixture plate and fixture to move, makes rear stud also pull out from the inside of rear screw hole, by this, quickly complete the dismounting of fixture plate and fixture, can be more conveniently fixed and dismounted to fixture plate and fixture.

Description

Technical Field

[0001] This utility model relates to the field of machine tool fixture equipment technology, and in particular to a quick-release positioning fixture for machine tools. Background Technology

[0002] Machine tool fixtures serve to clamp and fix workpieces during processing. Before using a machine tool fixture to clamp a workpiece, it is often necessary to fix the machine tool fixture on the machine tool to prevent the machine tool fixture from shaking along with the workpiece during processing.

[0003] In the prior art, such as the Chinese patent publication number CN208342305U, a machine tool fixture that is easy to disassemble includes a machine tool operating table. The machine tool operating table is movably connected to a connecting rod via a matching transverse slot and rollers. The connecting rod is provided with a threaded hole, and the connecting rod is movably connected to a threaded rod via a matching threaded hole and external thread. Adjusting blocks are provided on both the left and right sides of the bottom of the vertical rod. The opposing surfaces of the two sets of adjusting blocks are fixedly connected by a spring. The opposing back surfaces of the two sets of adjusting blocks are provided with protrusions. By disassembling the limiting block through the locking block and the locking slot, the fixed clamping plate can be removed from the machine tool operating table. By pulling out the fixing bolt from the movable clamping plate and pushing the movable clamping plate backward, the sliding rod at the bottom of the movable clamping plate can be removed from the vertical slot. After removing the movable clamping plate, the connecting rod can be taken out from the transverse slot by rotating the threaded rod. Disassembly is simple and installation is convenient.

[0004] In actual production and use, although this type of easily disassembled machine tool fixture can be disassembled, the disassembly process requires pulling out the fixing bolts one by one from the moving clamp and pushing the moving clamp backward. The pulled-out fixing bolts may fall to the ground, making this method inconvenient and potentially affecting the disassembly of the machine tool fixture. Consequently, the device is not effective and needs improvement. Utility Model Content

[0005] The purpose of this invention is to provide a quick-release positioning fixture for machine tools, which has a good effect on the disassembly of machine tool fixtures.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a quick-release positioning fixture for machine tools, comprising a machine tool, a feed plate, a fixture plate, a turntable, a lead screw, a slider, a locking plate, and a spring assembly. A square box is fixedly connected to the outside of the feed plate, and a cylinder is fixedly connected to the inside of the square box. A slot is opened inside the feed plate, and a round hole is opened inside the slot. The output end of the cylinder passes through the round hole and is fixedly connected to the locking plate. A front stud is fixedly connected to the outside of the locking plate. A front threaded hole is opened inside the feed plate, and a rear threaded hole is opened inside the feed plate. A rear stud is fixedly connected to the outside of the slot. A fixture is fixedly connected to the upper surface of the fixture plate. A base is fixedly connected to the bottom of the machine tool. A square slot is opened inside the machine tool.

[0007] By adopting the above technical solution, when the worker places the fixture plate into the slot, they first insert the rear stud into the rear threaded hole. Then, the cylinder is activated, which drives the locking plate to move, causing the locking plate to move the front stud. The moving front stud inserts into the front threaded hole, while the locking plate continues to move and contact the fixture plate. In this way, the fixture plate and fixture are fixed to the feed plate, thus completing the fixation of the fixture plate and fixture. When it is necessary to disassemble the fixture plate and fixture, the worker closes the cylinder. The output end of the cylinder drives the locking plate to move back, causing the front stud to be pulled out from the front threaded hole. Then, the worker pulls the fixture plate and fixture, causing the rear stud to also be pulled out from the rear threaded hole. This quickly completes the disassembly of the fixture plate and fixture. By using this method, it is no longer necessary to use bolts to fix and loosen the fixture plate and fixture when fixing and disassembling them, making it easier to fix and disassemble the fixture plate and fixture and achieving a better disassembly effect.

[0008] A further feature of this invention is that a knob is rotatably connected to the upper surface of the feed plate, and a limiting piece is fixedly connected to the upper surface of the knob.

[0009] By adopting the above technical solution, after the clamping plate is fixed, the worker turns the knob to move the limiting piece to the upper surface of the clamping plate, thereby limiting the clamping plate in the slot again.

[0010] A further feature of this invention is that: the machine tool has a rotating hole inside, the slider has a threaded hole inside, one end of the lead screw is fixedly connected to the turntable, one end of the lead screw passes through the rotating hole and is threadedly connected to the threaded hole, and the slider is fixedly connected to the bottom of the feed plate.

[0011] By adopting the above technical solution, after fixing the fixture plate and fixture, the worker manually cranks the turntable to rotate the lead screw, and the feed plate moves linearly along the square groove as the lead screw rotates, thereby moving the fixed fixture on the machine tool.

[0012] A further feature of this invention is that a base is fixedly connected inside the square groove, and a shaft hole is opened inside the base, with the other end of the lead screw passing through the shaft hole.

[0013] By adopting the above technical solution, when the lead screw is subjected to force and rotates, the shaft hole makes the lead screw rotate more smoothly and reduces the amplitude generated when the lead screw is subjected to force and rotates.

[0014] A further feature of this invention is that a slide rail is fixedly connected inside the square groove, and a wheel is provided at the bottom of the feed plate, with the wheel slidably connected to the slide rail.

[0015] By adopting the above technical solution, when the feed plate is subjected to force and moves, the feed plate moves in a straight line along the slide rail through the sliding connection between the wheel and the slide rail, preventing the feed plate from deviating when it moves with the fixed clamp.

[0016] A further feature of this invention is that a groove is formed inside the square groove, and a ball bearing is rotatably connected to the outside of the feed plate, with the ball bearing slidably connected to the groove.

[0017] By adopting the above technical solution, when the feed plate moves under force, the movement of the feed plate is made smoother by the sliding connection between the ball and the groove.

[0018] A further feature of this invention is that the machine tool is externally fixedly connected with two baffles.

[0019] By adopting the above technical solution, the two baffles block the moving feed plate, preventing the wheel from derailing from the slide rail after it reaches its limit travel.

[0020] A further feature of this invention is that a sponge block is fixedly connected to the outside of the baffle, and the thickness of the sponge block is four centimeters.

[0021] By adopting the above technical solution, when the two baffles block the moving feed plate, they will collide with the feed plate, and the sponge block will play a buffering role.

[0022] A further feature of this invention is that a scale is fixedly connected to the outside of the machine tool, and scale values ​​are fixedly connected to the upper surface of the scale.

[0023] By adopting the above technical solution, the scale value provides a reference for the distance the feed plate moves.

[0024] A further feature of this invention is that: an arc-shaped groove is provided inside the front stud, a through groove is provided inside the feed plate, a spring assembly is fixedly connected inside the through groove, an arc-shaped plug is fixedly connected outside the spring assembly, and an insertion hole is provided inside the front screw hole.

[0025] By adopting the above technical solution, when the front stud is inserted into the front screw hole under force, the front stud contacts the arc-shaped plug, causing the arc-shaped plug to press down. Then the front stud moves, and when the arc-shaped slot passes through the through slot, the arc-shaped plug rises and is locked inside the arc-shaped slot by the action of the spring assembly. In this way, the front stud and the feed plate are temporarily locked together, thereby further increasing the effect of fixing the fixture plate and the fixture.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the arrangement of a machine tool, feed plate, fixture plate, turntable, lead screw, slider, locking plate, spring assembly, square box, cylinder, slot, round hole, front stud, front screw hole, rear screw hole, rear stud, fixture, base, and square slot, allows the worker to fix the fixture plate and fixture in the slot by the action of the rear stud, cylinder, and front stud. When it is necessary to disassemble the fixture plate and fixture, the worker closes the cylinder, which drives the locking plate to move back, causing the front stud to be pulled out from the front screw hole. Then, the worker pulls the fixture plate and fixture to move, causing the rear stud to be pulled out from the rear screw hole as well. In this way, the disassembly of the fixture plate and fixture is completed quickly, making it relatively convenient to fix and disassemble the fixture plate and fixture.

[0028] 2. This utility model, through the arrangement of a knob, limiting plate, rotating hole, threaded hole, square groove, base, shaft hole, slide rail, wheel, groove, ball, baffle, sponge block, scale, arc-shaped slot, spring assembly, through groove, arc-shaped plug, and socket, allows the worker to lock and fix the fixture plate again by rotating the knob to drive the limiting plate. By rotating the screw, the worker moves the feed plate with the fixed fixture on the machine tool in a straight line along the slide rail. When the screw is under force, it rotates in the shaft hole, thereby reducing the amplitude generated when the screw is under force. The sliding connection between the wheel and the slide rail and the sliding connection between the ball and the groove allow the feed plate with the fixed fixture to move smoothly on the machine tool. Two baffles limit the feed plate from moving to the edge of the machine tool. The scale value provides a reference for the feed amount of the feed plate. The arc-shaped plug and the arc-shaped slot temporarily connect the front stud to the feed plate, increasing the overall fixation of the fixture plate. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the cylinder and locking plate structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the front stud and spring assembly structure of this utility model;

[0033] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0034] In the diagram, 1. Machine tool; 2. Feed plate; 3. Fixture plate; 4. Turntable; 5. Lead screw; 6. Slider; 7. Locking plate; 8. Square box; 9. Cylinder; 10. Slot; 11. Round hole; 12. Front stud; 13. Front threaded hole; 14. Rear threaded hole; 15. Rear stud; 16. Fixture; 17. Base; 18. Knob; 19. Limiting plate; 20. Rotary hole; 21. Threaded hole; 22. Square groove; 23. Base; 24. Shaft hole; 25. Slide rail; 26. Wheel; 27. Groove; 28. Ball bearing; 29. ​​Baffle; 30. Sponge block; 31. Scale; 32. Arc-shaped slot; 33. Spring assembly; 34. Through groove; 35. Arc-shaped plug; 36. Socket. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] Reference Figure 1-4 A quick-release positioning fixture for machine tools includes the following specific embodiments:

[0037] Example 1: A square box 8 is fixedly connected to the outside of the feed plate 2. A cylinder 9 is fixedly connected to the inside of the square box 8. A slot 10 is opened inside the feed plate 2, and a round hole 11 is opened inside the slot 10. The output end of the cylinder 9 passes through the round hole 11 and is fixedly connected to the locking plate 7. A front stud 12 is fixedly connected to the outside of the locking plate 7. A front screw hole 13 is opened inside the feed plate 2. A rear screw hole 14 is opened inside the feed plate 2. A rear stud 15 is fixedly connected to the outside of the slot 10. A clamp 16 is fixedly connected to the upper surface of the clamp plate 3. A base 17 is fixedly connected to the bottom of the machine tool 1. A square slot 22 is opened inside the machine tool 1. When the worker puts the clamp plate 3 into the slot 10, he first inserts the rear stud 15 into the rear screw hole 14. Then he starts the cylinder 9. The action of the cylinder 9 drives the locking plate 7 to move, which in turn drives the front stud 12 to move. The stud 12 is inserted into the front screw hole 13, while the locking plate 7 continues to move and contact the clamp plate 3. In this way, the clamp plate 3 and the clamp 16 are fixed to the feed plate 2, thus completing the fixation of the clamp plate 3 and the clamp 16. When it is necessary to disassemble the clamp plate 3 and the clamp 16, the worker closes the cylinder 9. The output end of the cylinder 9 drives the locking plate 7 to move back, causing the front stud 12 to be pulled out from the front screw hole 13. Then the worker pulls the clamp plate 3 and the clamp 16 to move, causing the rear stud 15 to be pulled out from the rear screw hole 14. In this way, the disassembly of the clamp plate 3 and the clamp 16 is completed quickly. In this way, when fixing and disassembling the clamp plate 3 and the clamp 16, it is no longer necessary to fix and loosen the clamp plate 3 and the clamp 16 with bolts. It is more convenient to fix and disassemble the clamp plate 3 and the clamp 16, achieving a better effect in clamp disassembly.

[0038] Example 2: A knob 18 is rotatably connected to the upper surface of the feed plate 2. A limiting piece 19 is fixedly connected to the upper surface of the knob 18. After the clamping plate 3 is fixed, the worker rotates the knob 18, causing the limiting piece 19 to move to the upper surface of the clamping plate 3, thus limiting the clamping plate 3 in the slot 10 again. An arc-shaped slot 32 is provided inside the front stud 12, and a through groove 34 is provided inside the feed plate 2. A spring assembly 33 is fixedly connected inside the through groove 34, and an arc-shaped plug 3 is fixedly connected to the outside of the spring assembly 33. 5. The front screw hole 13 has an insertion hole 36 inside. When the front stud 12 is inserted into the front screw hole 13 under force, the front stud 12 contacts the arc plug 35 and presses the arc plug 35 down. Then the front stud 12 moves. When the arc groove 32 passes through the through groove 34, the arc plug 35 rises and is locked inside the arc groove 32 by the action of the spring assembly 33. In this way, the front stud 12 is temporarily locked together with the feed plate 2, thereby further increasing the fixing effect of the clamp plate 3 and the clamp 16.

[0039] Example 3: The machine tool 1 has a rotating hole 20 inside, and the slider 6 has a threaded hole 21 inside. One end of the lead screw 5 is fixedly connected to the turntable 4, and the other end of the lead screw 5 passes through the rotating hole 20 and is threadedly connected to the threaded hole 21. The slider 6 is fixedly connected to the bottom of the feed plate 2. After the fixture plate 3 and the fixture 16 are fixed, the worker manually cranks the turntable 4 to rotate the lead screw 5. The feed plate 2 then moves linearly along the square groove 22 as the lead screw 5 rotates, thus moving the fixed fixture 16 on the machine tool 1. A base 23 is fixedly connected inside the square groove 22. A shaft hole 24 is opened inside the base 23. The other end of the lead screw 5 passes through the shaft hole 24. When the lead screw 5 is rotated under force, the shaft hole 24 makes the rotation of the lead screw 5 more stable and reduces the amplitude generated when the lead screw 5 is rotated under force.

[0040] Example 4: A slide rail 25 is fixedly connected inside the square groove 22. A wheel 26 is provided at the bottom of the feed plate 2. The wheel 26 is slidably connected to the slide rail 25. When the feed plate 2 is subjected to force and moves, the sliding connection between the wheel 26 and the slide rail 25 causes the feed plate 2 to move linearly along the slide rail 25, preventing the feed plate 2 from deviating when it moves with the fixed clamp 16. A groove 27 is provided inside the square groove 22. A ball bearing 28 is rotatably connected to the outside of the feed plate 2. The ball bearing 28 is slidably connected to the groove 27. When the feed plate 2 is subjected to force and moves, the sliding connection between the ball bearing 28 and the groove 27 makes the movement of the feed plate 2 smoother.

[0041] Example 5: The machine tool is externally fixedly connected with baffles 29, and there are two baffles 29. The two baffles 29 block the moving feed plate 2 to prevent the wheel 26 from derailing from the slide rail 25 after it reaches the limit of its travel. The baffles 29 are externally fixedly connected with sponge blocks 30. The thickness of the sponge blocks 30 is four centimeters. When the two baffles 29 block the moving feed plate 2, they will collide with the feed plate 2. The sponge blocks 30 act as a buffer. The machine tool 1 is externally fixedly connected with a scale 31. The scale value is fixedly connected to the upper surface of the scale 31. The scale value provides a reference for the distance of movement of the feed plate 2.

[0042] In this invention, after the clamp plate 3 and clamp 16 are fixed in the slot 10 by the action of the rear stud 15, cylinder 9, and front stud 12, when it is necessary to disassemble the clamp plate 3 and clamp 16, the worker closes the cylinder 9, which drives the locking plate 7 to move back, causing the front stud 12 to be pulled out from the front screw hole 13. Then, the worker pulls the clamp plate 3 and clamp 16 to move, causing the rear stud 15 to be pulled out from the rear screw hole 14. This quickly completes the disassembly of the clamp plate 3 and clamp 16, making it relatively convenient to fix and disassemble the clamp plate 3 and clamp 16. The worker then uses the knob 18 to move the limiting plate 19 to lock and fix the clamp plate 3 again. The worker rotates the lead screw 5, causing the feed plate 2, carrying the fixed fixture 16, to move linearly along the slide rail 25 on the machine tool 1. When the lead screw 5 is subjected to force and rotates, it rotates within the shaft hole 24, thereby reducing the amplitude generated when the lead screw 5 is subjected to force and rotates. Through the sliding connection between the wheel 26 and the slide rail 25 and the sliding connection between the ball 28 and the groove 27, the feed plate 2, carrying the fixed fixture 16, moves smoothly and steadily on the machine tool 1. The two baffles 29 restrict the feed plate 2 from moving to the edge of the machine tool 1. The scale value provides a reference for the feed amount of the feed plate 2. Through the engagement of the arc plug 35 with the arc slot 32, the front stud 12 is temporarily engaged with the feed plate 2, increasing the overall stability of the fixture plate 3.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release positioning fixture for a machine tool, comprising a machine tool (1), a feed plate (2), a fixture plate (3), a turntable (4), a lead screw (5), a slider (6), a locking plate (7), and a spring assembly (33), characterized in that: The feed plate (2) is fixedly connected to a square box (8) on the outside. A cylinder (9) is fixedly connected inside the square box (8). A slot (10) is opened inside the feed plate (2). A round hole (11) is opened inside the slot (10). The output end of the cylinder (9) passes through the round hole (11) and is fixedly connected to the locking plate (7). A front stud (12) is fixedly connected to the outside of the locking plate (7). A front screw hole (13) is opened inside the feed plate (2). A rear screw hole (14) is opened inside the feed plate (2). A rear stud (15) is fixedly connected to the outside of the slot (10). A clamp (16) is fixedly connected to the upper surface of the clamp plate (3). A base (17) is fixedly connected to the bottom of the machine tool (1). A square slot (22) is opened inside the machine tool (1).

2. The quick-release positioning fixture for machine tools according to claim 1, characterized in that: A knob (18) is rotatably connected to the upper surface of the feed plate (2), and a limit piece (19) is fixedly connected to the upper surface of the knob (18).

3. A quick-release positioning fixture for machine tools according to claim 1, characterized in that: The machine tool (1) has a rotating hole (20) inside, the slider (6) has a threaded hole (21) inside, one end of the lead screw (5) is fixedly connected to the turntable (4), one end of the lead screw (5) passes through the rotating hole (20) and is threadedly connected to the threaded hole (21), and the slider (6) is fixedly connected to the bottom of the feed plate (2).

4. A quick-release positioning fixture for machine tools according to claim 1, characterized in that: A base (23) is fixedly connected inside the square groove (22), and a shaft hole (24) is opened inside the base (23). The other end of the lead screw (5) passes through the shaft hole (24).

5. A quick-release positioning fixture for machine tools according to claim 1, characterized in that: The square groove (22) is fixedly connected to a slide rail (25), and the bottom of the feed plate (2) is provided with a wheel (26), which is slidably connected to the slide rail (25).

6. A quick-release positioning fixture for machine tools according to claim 1, characterized in that: The square groove (22) has a groove (27) inside, and a ball (28) is rotatably connected to the outside of the feed plate (2), and the ball (28) is slidably connected to the groove (27).

7. A quick-release positioning fixture for machine tools according to claim 1, characterized in that: The machine tool is externally fixedly connected with baffles (29), and there are two baffles (29).

8. A quick-release positioning fixture for machine tools according to claim 7, characterized in that: The baffle (29) is fixedly connected to a sponge block (30), the thickness of which is four centimeters.

9. A quick-release positioning fixture for machine tools according to claim 1, characterized in that: The machine tool (1) is externally fixedly connected to a scale (31), and the upper surface of the scale (31) is fixedly connected to a scale value.

10. A quick-release positioning fixture for machine tools according to claim 1, characterized in that: The front stud (12) has an arc-shaped groove (32) inside, the feed plate (2) has a through groove (34) inside, a spring assembly (33) is fixedly connected inside the through groove (34), an arc-shaped plug (35) is fixedly connected outside the spring assembly (33), and an insertion hole (36) is opened inside the front screw hole (13).

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