Ball screw mechanism

Abstract

The utility model relates to the technical field of ball screws, in particular to a ball screw mechanism. According to the technical scheme, the device comprises a lead screw nut, a motor, an insertion block and a plug pin, and is characterized in that a first round block is fixed to one side of the motor, an insertion box is fixed to one side of the first round block, an insertion groove is formed in one side of the insertion box, first round holes are formed in the front end and the rear end of the insertion box respectively, the insertion block is inserted into the insertion groove, and second round holes are formed in the front end of the insertion block; a screw rod body is fixed to one side of the inserting block and connected with a screw rod nut, a spring is fixed to the rear end of the inserting box, a second round block is fixed to the rear end of the spring, a limiting strip is fixed to the front end of the second round block, a limiting hole is formed in one side of the limiting strip, the front end of the limiting strip penetrates through the first round hole, and the front end of the limiting strip penetrates through the second round hole. And one side of the bolt penetrates through the limiting hole. The lead screw has the advantages that the lead screw body can be conveniently connected with the motor, and meanwhile the lead screw body and the motor can be conveniently detached.

Description

Technical Field

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

[0002] A ball screw is a mechanical element that converts rotational motion into linear motion. It consists of a threaded shaft, a nut, and a ball. The ball screw mainly cooperates with the thread on the threaded shaft and the thread in the nut, and the ball rolls between the threaded shaft and the nut to achieve the conversion from rotational motion to linear motion. When the ball screw is in use, it needs to be connected to a power device, but after the power device is connected to the screw, it is inconvenient to disassemble the power device and the screw.

[0003] A Chinese patent discloses a ball screw internal circulation mechanism (authorization announcement number CN204553740U), which mainly includes a screw and a screw ball. A spiral groove is arranged on the outer cylindrical surface of the screw, and two retaining rings are sleeved side by side on the outer side of the screw. A reversing plate arranged along the axial direction of the screw is connected between the two retaining rings, and a plurality of reversing grooves are arranged side by side on the inner side wall of the reversing plate; the direction of the reversing groove is opposite to the direction of the spiral groove, and the two ends of the reversing groove are respectively connected to the corresponding and adjacent two spiral grooves, and a plurality of screw balls are arranged in sequence and roll along the spiral groove and the reversing groove.

[0004] However, there are still some shortcomings in this patent. The patent has a simple and reasonable structure, is easy to assemble, and the ball rolls smoothly and the screw rotates smoothly. However, when the ball screw is in use, it needs to be connected to a power device. However, after the power device is connected to the screw, it is inconvenient to disassemble the power device and the screw. Therefore, those skilled in the art provide a ball screw mechanism to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to provide a ball screw mechanism, which has the advantages of being easy to connect the screw body and the motor, and at the same time easy to disassemble the screw body and the motor, thereby solving the problem that the ball screw needs to be connected to a power device when in use, but after the power device is connected to the screw, it is inconvenient to disassemble the power device and the screw.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ball screw mechanism, including a screw nut, a motor, an insert block and a latch, a round block 1 is fixed on one side of the motor, a plug box is fixed on one side of the round block 1, a slot is provided on one side of the plug box, a round hole 1 is provided at the front and rear ends of the plug box respectively, an insert block is inserted into the slot, a round hole 2 is provided at the front end of the plug block, a screw body is fixed on one side of the plug block, the screw body is connected to the screw nut, a spring is fixed on the rear end of the plug box, a round block 2 is fixed on the rear end of the spring, a limiting strip is fixed on the front end of the round block 2, a limiting hole is provided on one side of the limiting strip, the front end of the limiting strip passes through the round hole 1, the front end of the limiting strip passes through the round hole 2, and one side of the latch passes through the limiting hole.

[0007] Preferably, the second circular hole at the front end of the plug block is aligned with the first circular hole at the front and rear ends of the plug box. By aligning the second circular hole with the first circular hole, it is convenient for the limit bar to pass through the first circular hole and the second circular hole.

[0008] Preferably, the diameter of the second circular hole formed at the front end of the insert block is larger than the height of the limiting strip. The second circular hole diameter is larger than the height of the limiting strip, so that the limiting strip can pass through the second circular hole.

[0009] Preferably, the diameter of the circular hole 1 respectively provided at the front and rear ends of the plug box is larger than the height of the limiting strip. The diameter of the circular hole 1 is larger than the height of the limiting strip, so that the limiting strip can pass through the circular hole 1.

[0010] Preferably, the diameter of the limiting hole formed on one side of the limiting strip matches the diameter of the plug pin, so that the plug pin can pass through the limiting hole easily.

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

[0012] The utility model is provided with round holes one at the front and rear ends of an insertion box respectively, an insertion block is inserted into the slot, a round hole two is provided at the front end of the insertion block, a screw rod body is fixed on one side of the insertion block, the screw rod body is connected with a screw rod nut, a spring is fixed on the rear end of the insertion box, a round block two is fixed on the rear end of the spring, a limiting strip is fixed on the front end of the round block two, a limiting hole is provided on one side of the limiting strip, the front end of the limiting strip passes through the round hole one, the front end of the limiting strip passes through the round hole two, and one side of the pin passes through the limiting hole. When the screw rod body needs to be connected to the motor, the insertion block is inserted into the slot, and then the round block two is pressed to elastically deform the spring, the limiting strip passes through the round hole one and the round hole two, and then the pin passes through the limiting hole, so as to achieve the effect of facilitating the connection of the screw rod body with the motor and facilitating the disassembly of the screw rod body and the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the motor of the utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of the screw rod of the utility model;

[0016] Figure 4 This is a schematic diagram of the main structure of the limit strip of the utility model.

[0017] In the figure: 1. screw body; 2. screw nut; 3. plug box; 4. round block 1; 5. motor; 6. slot; 7. round hole 1; 8. round hole 2; 9. plug block; 10. round block 2; 11. spring; 12. limit strip; 13. limit hole; 14. pin. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figures 1 to 4 The utility model provides an embodiment: a ball screw mechanism, including a screw nut 2, a motor 5, an insert block 9 and a latch 14, a round block 4 is fixed on one side of the motor 5, a plug box 3 is fixed on one side of the round block 4, a slot 6 is provided on one side of the plug box 3, a round hole 7 is provided on the front and rear ends of the plug box 3, the insert block 9 is inserted into the slot 6, a round hole 2 8 is provided on the front end of the plug block 9, the round hole 2 8 provided on the front end of the plug block 9 is aligned with the round hole 1 7 provided on the front and rear ends of the plug box 3, and the limit strip 12 passes through the round hole 1 7 and the round hole 2 8 by aligning the round hole 2 8 with the round hole 1 7, a screw body 1 is fixed on one side of the plug block 9, and the screw body 1 is connected to the screw nut 2.

[0020] A spring 11 is fixed to the rear end of the plug box 3, and a round block 2 10 is fixed to the rear end of the spring 11. A limiting strip 12 is fixed to the front end of the round block 2 10. A limiting hole 13 is provided on one side of the limiting strip 12. The front end of the limiting strip 12 passes through a round hole 17. The diameter of the round holes 17 provided at the front and rear ends of the plug box 3 is greater than the height of the limiting strip 12. The diameter of the through-hole 17 is greater than the height of the limiting strip 12, which is convenient for the limiting strip 12 to pass through the round hole 17. The front end of the limiting strip 12 passes through a round hole 2 8. The diameter of the round hole 2 8 provided at the front end of the plug block 9 is greater than the height of the limiting strip 12. The diameter of the through-hole 2 8 is greater than the height of the limiting strip 12, which is convenient for the limiting strip 12 to pass through the round hole 2 8. One side of the latch 14 passes through the limiting hole 13. The diameter of the limiting hole 13 provided on one side of the limiting strip 12 matches the diameter of the latch 14. The diameter of the through-hole 13 matches the diameter of the latch 14, which is convenient for the latch 14 to pass through the limiting hole 13.

[0021] When the screw body 1 needs to be connected to the motor 5, the insert block 9 is inserted into the slot 6 so that the round hole 1 7 and the round hole 2 8 are aligned, and then the round block 2 10 is pressed to elastically deform the spring 11 so that the limit strip 12 passes through the round hole 1 7 and the round hole 2 8, and then the latch 14 passes through the limit hole 13. When the screw body 1 needs to be disassembled from the motor 5, the latch 14 is moved out of the limit hole 13, and the spring 11 is elastically deformed so that the limit strip 12 is moved out of the round hole 1 7 and the round hole 2 8. The effect of facilitating the connection of the screw body 1 and the motor 5 and facilitating the disassembly of the screw body 1 and the motor 5 is achieved.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A ball screw mechanism, comprising a screw nut (2), a motor (5), an insert (9) and a latch (14), characterized in that: A round block (4) is fixed on one side of the motor (5), a plug box (3) is fixed on one side of the round block (4), a slot (6) is provided on one side of the plug box (3), round holes (7) are provided at the front and rear ends of the plug box (3), a plug block (9) is inserted into the slot (6), a round hole (8) is provided at the front end of the plug block (9), a screw body (1) is fixed on one side of the plug block (9), the screw body (1) is connected to the screw nut (2), a spring (11) is fixed on the rear end of the plug box (3), a round block (10) is fixed on the rear end of the spring (11), a limit strip (12) is fixed on the front end of the round block (10), a limit hole (13) is provided on one side of the limit strip (12), the front end of the limit strip (12) passes through the round hole (7), the front end of the limit strip (12) passes through the round hole (8), and one side of the latch (14) passes through the limit hole (13).

2. A ball screw mechanism according to claim 1, characterized in that: The second circular hole (8) formed at the front end of the plug block (9) is aligned with the first circular hole (7) formed at the front and rear ends of the plug box (3).

3. A ball screw mechanism according to claim 1, characterized in that: The diameter of the second circular hole (8) provided at the front end of the insert block (9) is greater than the height of the limiting strip (12).

4. A ball screw mechanism according to claim 1, characterized in that: The diameter of the circular hole (7) respectively provided at the front and rear ends of the plug box (3) is greater than the height of the limiting strip (12).

5. A ball screw mechanism according to claim 1, characterized in that: The diameter of the limiting hole (13) opened on one side of the limiting strip (12) matches the diameter of the latch pin (14).

Images