Screw rod positioning mechanism

Abstract

The lead screw positioning mechanism comprises a frame, the frame is a square component with an opening in the top, a two-way threaded rod is arranged in the frame, one end of the two-way threaded rod extends out of one side of the frame, and the outer surfaces of the front side and the rear side of the two-way threaded rod are in threaded connection with fixers respectively. The two sides of the bottom end of the frame are fixedly connected with base plates, the surfaces of the bottom ends of the base plates are jointly and fixedly connected with a sliding plate, and the two sides of the inner wall of the sliding plate are fixedly connected with bayonets. A series of structures are arranged, the two-way threaded rod and the two fixers are used in cooperation, the lead screw positioning mechanism can fix the lead screw to a preset position, the lead screws of different lengths can also accurately position the center position, and the lead screws of different lengths can be accurately positioned through the clamping opening and the clamping block which are used in cooperation. The lead screw positioning mechanism can adjust the center position of the lead screw, the moving distance of the lead screw can be visually seen, operation is convenient, measurement is not needed, and follow-up operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rod production, in particular to a screw rod positioning mechanism. Background Art

[0002] Screw generally refers to ball screw, which is an ideal product for converting rotary motion into linear motion, or converting linear motion into rotary motion. Ball screw consists of screw, nut, steel ball, preload plate, reverser and dust collector.

[0003] The existing screw rod needs to use a positioning mechanism to fix the screw rod blank during processing. The screw rod needs to be measured before processing to determine the processing position of the screw rod. The operation is relatively complicated, and the existing positioning mechanism cannot flexibly adjust the position of the screw rod. During production and processing, the screw rod needs to be disassembled and then adjusted, which is inefficient. Utility Model Content

[0004] The purpose of the utility model is to provide a screw positioning mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screw positioning mechanism, comprising a frame, the frame being a square component with an opening at the top, a two-way threaded rod being arranged inside the frame, and one end of the two-way threaded rod extending out of one side of the frame, and the front and rear outer surfaces of the two-way threaded rod being threadedly connected with fixers respectively, and pads being fixedly connected at both sides of the bottom end of the frame, and a slide plate being fixedly connected at the bottom end surfaces of the pads, and a bayonet being fixedly connected at both sides of the inner wall of the slide plate, and a fixing sleeve being movably connected at the outer surface of the slide plate, and a center plate being fixedly connected at the inner center of the fixing sleeve, and two springs being fixedly connected at both sides of the center plate, the two springs forming a group, and the ends of the two springs in each group being connected to a support rod together, and the bottom of the support rod extending out of the bottom of the fixing sleeve, and a block connected thereto is arranged at the bottom edge of the extended ends of the two support rods near the bayonet position.

[0006] Preferably, a motor is fixedly connected to the left side of the frame, and the motor is fixedly connected to the head end of the bidirectional threaded rod, fixing the motor at a predetermined position, ensuring that the bidirectional threaded rod can be driven to rotate, so that the screw positioning mechanism can fix the screw and ensure that the screw can be fixed at a predetermined position for easy positioning.

[0007] Preferably, a pointer is fixedly connected to the front outer surface of the frame, and the pointer is located at the center of the frame, so as to ensure that the center position of the screw rod can be visually seen through the pointer after the screw rod is fixed.

[0008] Preferably, the bottom end of the fixing sleeve is fixedly connected to the top surface of the base plate, and a scale plate is provided at the front edge of the top of the base plate, so that the screw fixing assembly can slide, ensuring that the screw can be flexibly adjusted during processing, and the position of the screw after movement can be intuitively seen through the scale plate, thereby improving accuracy.

[0009] Preferably, the outer surfaces of the two fixers are movably connected to the front and rear inner surfaces of the frame, and the two fixers are mirrored so that the fixers can clamp the screw rod and ensure that the center of the screw rod is in the center position of the frame to facilitate subsequent operations.

[0010] Preferably, the block is matched with the buckle to ensure that the block can be driven by the support rod to achieve the effect of being stuck on the surface of the bayonet and releasing the bayonet, so that the screw positioning mechanism can adjust the position of the screw.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The screw positioning mechanism, through the use of a bidirectional threaded rod and two fixers, can fix the screw at a predetermined position, and screws of different lengths can also accurately locate the center position.

[0013] 2. The screw positioning mechanism can adjust the center position of the screw by using the bayonet and the block, and the moving distance of the screw can be intuitively seen. It is easy to operate and does not require measurement, which is convenient for subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 For the utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0017] Figure 4 It is an enlarged schematic diagram of the slide plate structure of the utility model;

[0018] Figure 5 For the utility model Figure 4 Enlarged schematic diagram of the structure at point B in the middle.

[0019] In the figure: 1. frame; 2. motor; 3. pad; 4. bottom plate; 5. fixing sleeve; 6. scale plate; 7. bidirectional threaded rod; 8. fixer; 9. slide plate; 10. bayonet; 11. block; 12. pointer; 13. center plate; 14. spring; 15. support rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] like Figures 1 to 5 As shown, the screw positioning mechanism of this embodiment includes a frame 1, which is a square component with an opening at the top. A bidirectional threaded rod 7 is arranged inside the frame 1, and one end of the bidirectional threaded rod 7 extends out of one side of the frame 1, so that the screw positioning mechanism can fix the screw at a predetermined position to improve the operation accuracy. The front and rear outer surfaces of the bidirectional threaded rod 7 are respectively threadedly connected with a fixer 8, so that the fixer 8 can be driven to move toward the center or the front and rear sides of the bidirectional threaded rod 7, so that the screw can be clamped. Pads 3 are fixedly connected to both sides of the bottom end of the frame 1 to raise the frame 1 and ensure the integrity of the screw positioning mechanism. A slide plate 9 is fixedly connected to the bottom surface of the pad plate 3. The slide plate 9 can be translated, so that the screw positioning mechanism can drive the screw to move and adjust. The inner wall of the slide plate 9 is fixedly connected with bayonet 10 , so that the slide plate 9 can be clamped to prevent the phenomenon of autonomous movement. The outer surface of the slide plate 9 is movably connected with a fixed sleeve 5 to support the slide plate 9. The inner center of the fixed sleeve 5 is fixedly connected with a center plate 13 to ensure that the support rod 15 inside the fixed sleeve 5 can run according to the expected trajectory. Two springs 14 are fixedly connected on both sides of the center plate 13. The two springs 14 form a group. The end surface of each group of two springs 14 is fixedly connected with a support rod 15, and the bottom of the support rod 15 extends out of the bottom of the fixed sleeve 5. A clamping block 11 is provided at the bottom edge of the extended end of the two support rods 15 near the position of the bayonet 10 to connect the support rod 15 to the desired position. The outer side of the bottom end of the support rod 15 is fixedly connected with a clamping block 11 to ensure that the clamping block 11 can be driven by the support rod 15 to achieve the effect of clamping and loosening the slide plate 9.

[0023] Specifically, a motor 2 is fixedly connected to the left side of the frame 1, and the motor 2 is fixedly connected to the head end of the bidirectional threaded rod 7, fixing the motor 2 at a predetermined position, ensuring that the bidirectional threaded rod 7 can be driven to rotate, so that the screw positioning mechanism can fix the screw and ensure that the screw can be fixed at a predetermined position for easy positioning.

[0024] Furthermore, a pointer 12 is fixedly connected to the front outer surface of the frame 1 , and the pointer 12 is located at the center of the frame 1 , so that the center position of the screw rod can be visually seen through the pointer 12 after the screw rod is fixed.

[0025] Furthermore, the bottom end of the fixing sleeve 5 is fixedly connected to the top surface of the base plate 4, and a scale plate 6 is provided at the top front edge of the base plate 4, so that the screw fixing assembly can slide, ensuring that the screw can be flexibly adjusted during processing, and the position of the screw after movement can be intuitively seen through the scale plate 6, thereby improving accuracy.

[0026] Furthermore, the outer surfaces of the two fixtures 8 are movably connected to the front and rear inner surfaces of the frame 1, and the two fixtures 8 are mirror images, so that the fixtures 8 can clamp the screw rod and ensure that the center of the screw rod is in the center position of the frame 1, which is convenient for subsequent operations.

[0027] Furthermore, the block 11 is adapted to the bayonet 10 , ensuring that the block 11 can be driven by the support rod 15 to achieve the effect of being stuck on the surface of the bayonet 10 and releasing the bayonet 10 , so that the screw positioning mechanism can adjust the position of the screw.

[0028] The method of using this embodiment is as follows: when it is necessary to position the screw rod, first connect one end of the screw rod to the inside of one of the fixers 8, then start the motor 2 to rotate the bidirectional threaded rod 7, and the fixers 8 threadedly connected on both sides of the bidirectional threaded rod 7 will synchronously translate toward the center of the bidirectional threaded rod 7, clamp the screw rod, and displace the center section of the screw rod to the center section of the frame. A slide plate 9 is provided at the bottom end of the frame 1. If it is necessary to adjust the position of the screw rod, the support rod 15 provided inside the fixing sleeve 5 can be pressed, and the support rod 15 is pressed to move toward the center plate 13, so that the block 11 under the support rod 15 releases the bayonet 10, so that the frame 1 can translate to the left or right. When it moves to the predetermined position, release the support rod 15, so that the block 11 is stuck in the bayonet 10, so that the frame 1 will not continue to move. At this time, the value of the scale plate 6 pointed to by the pointer 12 is the position of the center of the screw rod, which is convenient for subsequent production operations.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A screw positioning mechanism, comprising a frame (1), characterized in that: The frame (1) is a square component with an open top. A bidirectional threaded rod (7) is arranged inside the frame (1), and one end of the bidirectional threaded rod (7) extends out of one side of the frame (1). The front and rear outer surfaces of the bidirectional threaded rod (7) are respectively threadedly connected with a fixer (8). The bottom ends of the frame (1) are fixedly connected with a pad (3). The bottom end surfaces of the pad (3) are commonly connected with a slide plate (9). The inner walls of the slide plate (9) are fixedly connected with a bayonet (10). The outer surface of the slide plate (9) is A fixed sleeve (5) is movably connected, and a center plate (13) is fixedly connected to the inner center of the fixed sleeve (5). Two springs (14) are fixedly connected to the front and rear sides of the center plate (13). Two springs (14) form a group. The end surfaces of the two springs (14) in each group are fixedly connected to a support rod (15), and the bottom of the support rod (15) extends out of the bottom of the fixed sleeve (5). A clamping block (11) is provided at the bottom edge of the extended end of the two support rods (15) near the position of the bayonet (10).

2. The screw positioning mechanism according to claim 1, characterized in that: The extended end of the bidirectional threaded rod (7) is connected to a motor (2), and the motor (2) is fixedly connected to a side surface of the frame (1).

3. The screw positioning mechanism according to claim 1, characterized in that: A pointer (12) is fixedly connected to the front outer surface of the frame (1).

4. The screw positioning mechanism according to claim 1, characterized in that: The bottom end of the fixing sleeve (5) is fixedly connected to the top surface of the bottom plate (4), and a scale plate (6) is provided at the front edge of the top of the bottom plate (4).

5. The screw positioning mechanism according to claim 1, characterized in that: The outer surfaces of the two fixers (8) are movably connected to the front and rear inner surfaces of the frame (1), and the two fixers (8) are mirror-imaged.

6. The screw positioning mechanism according to claim 1, characterized in that: The clamping block (11) is matched with the clamping port (10).

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