Clamping and positioning device for horizontal lathe

Abstract

The utility model relates to the field of clamping and positioning devices for horizontal lathes, in particular to a clamping and positioning device for a horizontal lathe, which comprises a positioning frame, a plurality of placing grooves are uniformly formed in the positioning frame, four claws are arranged in the positioning frame, and the outer surface of each claw is rotatably connected with the corresponding placing groove. The inner wall of each containing groove is fixedly connected with a coil spring, the other end of each coil spring is fixedly connected with the corresponding claw, and the conical column transversely moves in the positioning frame to push the four claws to rotate around the corresponding containing grooves. The parts, located outside the positioning frame, of the claws make contact with and extrude a workpiece according to the lever principle, so that the workpiece can be stably clamped, when the workpiece is loosened through resilience force of the coil springs, the conical columns move reversely, the coil springs drive the corresponding claws to reset, and therefore the workpiece can be stably clamped. And therefore, the effect that the device can rapidly and stably clamp the workpieces of different sizes through the claws is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping and positioning devices for horizontal lathes, in particular to a clamping and positioning device for horizontal lathes. Background Art

[0002] A lathe is a commonly used equipment in mechanical processing. It uses a turning tool to turn rotating parts so that the inner and outer walls of the parts form the desired shape or achieve the required accuracy. Lathes can be mainly divided into copy lathes, automatic lathes, vertical lathes, horizontal lathes, etc. Among them, the horizontal lathe is the most widely used type of lathe, also known as an ordinary lathe. Usually, in order to ensure that the parts can rotate smoothly during use, the parts need to be fixed using corresponding clamping and positioning devices.

[0003] After searching, a Chinese patent with publication number CN220128196U discloses a clamping and positioning device for a horizontal lathe, which solves the problem that when a cylindrical part is manually fixed, multiple clamps are usually fixed by threaded connection due to the vertical proximity of the part. However, when the part rotates at high speed, the threaded connection may become loose under the action of centrifugal force, which may cause shaking and affect the processing effect. In addition, harder particles may adhere to the surface of the part, which may scratch the surface of the part when clamped. However, this device cannot clamp the workpiece quickly during the clamping process. When the workpiece is clamped, this device may cause the axis of the workpiece to deviate if the workpiece mass is large, which may easily cause inaccurate processing during processing of the workpiece, resulting in increased leveling time for workpiece processing.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] In view of the above background technology, the prior art has the problem that workpieces of different sizes cannot be quickly clamped.

[0006] The utility model discloses a clamping and positioning device for a horizontal lathe, comprising a positioning frame, a plurality of placement grooves are evenly opened inside the positioning frame, four claws are arranged inside the positioning frame, the outer surface of each claw is rotatably connected to the corresponding placement groove, the inner wall of each placement groove is fixedly connected to a coil spring, the other end of each coil spring is fixedly connected to the corresponding claw, the inner wall of the positioning frame is slidably connected to a conical column, the outer surface of the conical column is slidably connected to the four claws, a first connecting frame is arranged inside the positioning frame, and one end of the first connecting frame close to the conical column is fixedly connected to the conical column.

[0007] By adopting the above scheme, a placement slot is opened on both sides of each claw hand, and the claw hand can rotate around the corresponding placement slot. When the claw hand rotates, the coil spring begins to compress, and the workpiece is clamped by the part of the claw hand located on the outside of the positioning frame. The conical column can slide along the positioning frame. When the conical column slides, the side of the conical column will contact and squeeze the four claw hands, and push the four claw hands to rotate around the corresponding placement slots at the same time, so that the clamping of the workpiece is more stable.

[0008] Optionally, the inner wall of the positioning frame is fixedly connected to a fixing plate, the outer surface of the fixing plate is slidably connected to the first connecting frame, the inner wall of the positioning frame is slidably connected to the second connecting frame, a sliding groove is provided inside the second connecting frame, and the inner wall of the sliding groove is slidably connected to the first connecting frame.

[0009] By adopting the above scheme, the first connecting frame can slide inside the positioning frame, and the sliding of the first connecting frame drives the conical column to slide. The fixed plate is a cross-shaped plate. The first connecting frame will pass through the fixed plate and slide along the fixed plate during the sliding process. The second connecting frame can be inserted from the side of the positioning frame away from the claw hand. During this process, the second connecting frame overlaps with the first connecting frame, and the first connecting frame enters the sliding groove in the second connecting frame.

[0010] Furthermore, a screw is threadedly connected to the inner wall of the first connecting frame, one end of the screw is fixedly connected to the fixing plate, and the outer surface of the screw is rotatably connected to the second connecting frame.

[0011] By adopting the above solution, the screw rod can rotate on the fixed plate, and the rotation of the screw rod will drive the first connecting frame to move horizontally along the screw rod, so that the conical column can be driven to move by the movement of the first connecting frame.

[0012] Furthermore, a blocking member is threadedly connected to the inner wall of the positioning frame, the blocking member is threadedly connected to the outer surface of the second connecting frame, and the inner wall of the blocking member is rotationally connected to the screw rod.

[0013] By adopting the above solution, the blocking member is a closing member of the positioning frame. The blocking member is placed at the tail of the positioning frame, and then the blocking member is rotated. The blocking member enters the positioning frame and fixes the positioning frame and the second connecting frame together.

[0014] Furthermore, one end of the screw rod away from the positioning frame is fixedly connected to a fixing block, and a slot is formed on the outer surface of the fixing block.

[0015] By adopting the above solution, the fixing block is a rectangular block, and slots are formed on the four sides of the fixing block.

[0016] Furthermore, a connecting plate is inserted into the outer surface of the fixing block, the inner wall of the connecting plate is slidably connected to the screw rod, and the outer surface of the connecting plate is fixedly connected to a rotating wheel.

[0017] By adopting the above solution, the connecting plate is inserted toward the fixing block so that the connecting plate wraps the end of the screw rod exposed from the positioning frame, and then the rotating wheel is rotated, and the rotating wheel drives the screw rod to rotate through the fixing block.

[0018] Furthermore, the outer surface of the connecting plate is fixedly connected to a placement box, the inner wall of the placement box is slidably connected to a connecting rod, the end of the connecting rod away from the fixed block is fixedly connected to a pulling block, the outer surface of the connecting rod is sleeved with a spring, one end of the spring is fixedly connected to the connecting rod, and the other end is fixedly connected to the placement box, and the outer surface of the connecting rod is plugged into the slot.

[0019] By adopting the above scheme, a chamfer is provided on the side of the fixed block close to the rotating wheel. When the connecting plate is inserted, the connecting rod will contact the chamfer and push the connecting rod through the fixed block to make it move vertically outward along the corresponding placement box. At this time, the spring begins to compress. When the connecting rod and the corresponding slot are on the same axis, the spring pushes the corresponding connecting rod into the corresponding slot through its own rebound force, so as to quickly fix the fixed block and the connecting plate. When the connecting plate needs to be disassembled, it only needs to pull the pull block, and the pull block drives the corresponding connecting rod to leave the corresponding slot, and then pull the connecting plate to make it leave the fixed block.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] 1. The utility model is provided with components such as placement slots, claws, coil springs, and conical columns. The conical columns move horizontally in the positioning frame to push the four claws to rotate around the corresponding placement slots, so that the claws use the lever principle to make the parts of the claws outside the positioning frame contact and squeeze the workpiece, so that the workpiece can be stably clamped. The rebound force of the coil spring makes the conical column move in the opposite direction when the workpiece is released, and the coil spring drives the corresponding claw to reset, thereby achieving the effect that the device can quickly and stably clamp workpieces of different sizes through the claws.

[0022] 2. The utility model sets a spring, a pulling block, a first connecting rod, a fixing block, a slot, a placement box, a connecting plate and other components. By pulling the pulling block, the corresponding first connecting rod is driven to move vertically outward along the corresponding placement box. At this time, the spring begins to compress, and then the corresponding connecting rod is pushed to reset under the action of the spring rebound force when there is no external force acting on the connecting rod. The connecting plate and the fixing block are fixed by the insertion of the first connecting rod and the corresponding slot, thereby achieving the effect that the device can quickly fix the connecting plate by inserting the connecting rod into the corresponding slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the positioning frame of the utility model;

[0026] Figure 3 This is a schematic diagram of the screw structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the connecting rod structure of the utility model;

[0028] Figure 5 This is a schematic diagram of the coil spring structure of the utility model.

[0029] In the figure: 1. positioning frame; 2. placement slot; 3. claw hand; 4. coil spring; 5. conical column; 6. first connecting frame; 7. fixed plate; 8. screw; 9. second connecting frame; 10. slide groove; 11. blocking member; 12. connecting plate; 13. rotating wheel; 14. placement box; 15. pulling block; 16. fixing block; 17. slot; 18. connecting rod; 19. spring. DETAILED DESCRIPTION

[0030] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0031] See also Figure 1 - Figure 5 The utility model discloses a clamping and positioning device for a horizontal lathe, comprising a positioning frame 1, a cylindrical groove is provided inside the positioning frame 1, which is convenient for installing and placing parts, a plurality of placement grooves 2 are evenly provided inside the positioning frame 1, four claws 3 are provided inside the positioning frame 1, a placement groove 2 is provided on both sides of each claw 3, the claws 3 can rotate around the corresponding placement groove 2, and connecting columns are fixedly connected on both sides of each claw 3, and the connecting columns are plugged into the corresponding placement groove 2.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, the outer surface of each claw hand 3 is rotatably connected to the corresponding placement groove 2, and the inner wall of each placement groove 2 is fixedly connected with a coil spring 4, and the other end of each coil spring 4 is fixedly connected to the corresponding claw hand 3. Specifically, when the claw hand 3 rotates, the coil spring 4 begins to compress, and the workpiece will be clamped by the part of the claw hand 3 located on the outside of the positioning frame 1. The inner wall of the positioning frame 1 is slidably connected with a conical column 5, and the outer surface of the conical column 5 is fixedly connected with a positioning block. The outer surface of the conical column 5 is slidably connected to the four claw hands 3, and a first connecting frame 6 is provided inside the positioning frame 1. The end of the first connecting frame 6 close to the conical column 5 is fixedly connected to the conical column 5. In this embodiment, the conical column 5 can slide along the slot hole in the positioning frame 1. When the conical column 5 slides, the side of the conical column 5 will contact and squeeze the four claw hands 3, and push the four evenly arranged claw hands 3 to rotate around the corresponding placement groove 2 at the same time, so that the clamping of the workpiece is more stable.

[0033] See also Figure 2 , Figure 3 The inner wall of the positioning frame 1 is fixedly connected with a fixing plate 7, and the fixing plate 7 is a cross-shaped plate. The outer surface of the fixing plate 7 is slidably connected with the first connecting frame 6. The inner wall of the positioning frame 1 is slidably connected with a second connecting frame 9. The second connecting frame 9 can be inserted from the side of the positioning frame 1 away from the claw hand 3. A slide groove 10 is opened inside the second connecting frame 9, and the inner wall of the slide groove 10 is slidably connected with the first connecting frame 6. Specifically, the sliding of the first connecting frame 6 drives the conical column 5 to slide. The first connecting frame 6 will pass through the fixing plate 7 and slide along the fixing plate 7 during the sliding process. When the second connecting frame 9 enters the positioning frame 1, it will overlap with the first connecting frame 6, and the first connecting frame 6 will enter the slide groove 10 in the second connecting frame 9.

[0034] In this embodiment, the inner wall of the first connecting frame 6 is threadedly connected with a screw rod 8, one end of the screw rod 8 is fixedly connected to the fixed plate 7, the screw rod 8 can rotate on the fixed plate 7, and the outer surface of the screw rod 8 is rotatably connected to the second connecting frame 9. Specifically, the rotation of the screw rod 8 will drive the first connecting frame 6 to move horizontally along the screw rod 8, so that the movement of the first connecting frame 6 can drive the conical column 5 to move.

[0035] like Figure 3 As shown, the inner wall of the positioning frame 1 is threadedly connected with a blocking member 11, and the blocking member 11 can be placed at the tail of the positioning frame 1 to block the positioning frame 1 to prevent dust from entering, and the blocking member 11 is threadedly connected to the outer surface of the second connecting frame 9, and the inner wall of the blocking member 11 is rotatably connected to the screw 8. Specifically, the blocking member 11 is placed at the bottom of the positioning frame 1 and the blocking member 11 is rotated, and the blocking member 11 will rotate into the positioning frame 1 and fix the positioning frame 1 and the second connecting frame 9 together.

[0036] like Figure 3 , Figure 4As shown, one end of the screw 8 away from the positioning frame 1 is fixedly connected to a fixing block 16, and a slot 17 is provided on the outer surface of the fixing block 16. The fixing block 16 is a square block, and the four sides of the fixing block 16 all have slots 17. The outer surface of the fixing block 16 is plugged with a connecting plate 12, and the inner wall of the connecting plate 12 is slidably connected to the screw 8. The outer surface of the connecting plate 12 is fixedly connected to a rotating wheel 13. Specifically, the connecting plate 12 is inserted toward the fixing block 16, so that the connecting plate 12 wraps the end of the screw 8 exposed from the positioning frame 1, and then the rotating wheel 13 is rotated, and the rotating wheel 13 will drive the screw 8 to rotate through the fixing block 16.

[0037] In this embodiment, the outer surface of the connecting plate 12 is fixedly connected to a placement box 14, and the inner wall of the placement box 14 is slidably connected to a connecting rod 18. Four placement boxes 14 are provided and are evenly placed on the four sides of the connecting plate 12. The end of the connecting rod 18 away from the fixed block 16 is fixedly connected to the pull block 15. The fixed block 16 is provided with a chamfer on the side close to the rotating wheel 13. The outer surface of the connecting rod 18 is sleeved with a spring 19. One end of the spring 19 is fixedly connected to the connecting rod 18, and the other end is fixedly connected to the placement box 14. The outer surface of the connecting rod 18 is plugged into the slot 17. Specifically, when the connecting plate 12 is inserted The connecting rod 18 will contact the chamfer and push the connecting rod 18 through the fixed block 16 to move vertically outward along the corresponding placement box 14. At this time, the spring 19 begins to compress. When the connecting rod 18 and the corresponding slot 17 are on the same axis, the spring 19 pushes the corresponding connecting rod 18 into the corresponding slot 17 through its own rebound force, thereby quickly fixing the fixed block 16 and the connecting plate 12. When the connecting plate 12 needs to be disassembled, just pull the pull block 15, and the pull block 15 drives the corresponding connecting rod 18 to leave the corresponding slot 17, and then pull the connecting plate 12 to leave the fixed block 16.

[0038] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A clamping and positioning device for a horizontal lathe, comprising a positioning frame (1), characterized in that: A plurality of placement grooves (2) are evenly arranged inside the positioning frame (1), and four claws (3) are arranged inside the positioning frame (1). The outer surface of each claw (3) is rotatably connected to the corresponding placement groove (2), and the inner wall of each placement groove (2) is fixedly connected to a coil spring (4), and the other end of each coil spring (4) is fixedly connected to the corresponding claw (3). The inner wall of the positioning frame (1) is slidably connected to a conical column (5), and the outer surface of the conical column (5) is slidably connected to the four claws (3). A first connecting frame (6) is arranged inside the positioning frame (1), and one end of the first connecting frame (6) close to the conical column (5) is fixedly connected to the conical column (5).

2. The clamping and positioning device for a horizontal lathe according to claim 1, characterized in that: The inner wall of the positioning frame (1) is fixedly connected to a fixing plate (7), the outer surface of the fixing plate (7) is slidably connected to the first connecting frame (6), the inner wall of the positioning frame (1) is slidably connected to the second connecting frame (9), a sliding groove (10) is provided inside the second connecting frame (9), and the inner wall of the sliding groove (10) is slidably connected to the first connecting frame (6).

3. The clamping and positioning device for a horizontal lathe according to claim 2, characterized in that: The inner wall of the first connecting frame (6) is threadedly connected with a screw rod (8), one end of the screw rod (8) is fixedly connected to the fixing plate (7), and the outer surface of the screw rod (8) is rotatably connected to the second connecting frame (9).

4. The clamping and positioning device for a horizontal lathe according to claim 3, characterized in that: The inner wall of the positioning frame (1) is threadedly connected to a blocking member (11), the blocking member (11) is threadedly connected to the outer surface of the second connecting frame (9), and the inner wall of the blocking member (11) is rotationally connected to the screw rod (8).

5. The clamping and positioning device for a horizontal lathe according to claim 4, characterized in that: One end of the screw rod (8) away from the positioning frame (1) is fixedly connected to a fixing block (16), and a slot (17) is provided on the outer surface of the fixing block (16).

6. The clamping and positioning device for a horizontal lathe according to claim 5, characterized in that: The outer surface of the fixed block (16) is plugged with a connecting plate (12), the inner wall of the connecting plate (12) is slidably connected to the screw rod (8), and the outer surface of the connecting plate (12) is fixedly connected to a rotating wheel (13).

7. The clamping and positioning device for a horizontal lathe according to claim 6, characterized in that: The outer surface of the connecting plate (12) is fixedly connected to a placement box (14), the inner wall of the placement box (14) is slidably connected to a connecting rod (18), one end of the connecting rod (18) away from the fixed block (16) is fixedly connected to a pull block (15), the outer surface of the connecting rod (18) is sleeved with a spring (19), one end of the spring (19) is fixedly connected to the connecting rod (18), and the other end is fixedly connected to the placement box (14), and the outer surface of the connecting rod (18) is plugged into the slot (17).

Images