Clamping tool for grinding ball screw
By designing a clamping fixture that includes a limiting groove and a hole, the problems of slow positioning and long clamping time during the grinding process of ball screw nuts were solved, achieving rapid positioning and clamping and efficient production.
Patent Information
- Application Number
- CN202423246855.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The slow positioning and long clamping time during the grinding process of ball screw nuts result in low production efficiency.
Design a clamping fixture including a machine base, spindle, front center, clamping sleeve, grinding wheel and rear center. By setting limit grooves and holes on the clamping sleeve, the nut can be quickly positioned and clamped, and grinding can be performed by the cooperation of the limit grooves and holes.
This technology enables rapid positioning and clamping of nuts, reducing clamping time, improving production efficiency, and ensuring grinding accuracy and quality.
Smart Images
Figure CN223670960U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the ball screw nut machining technical field, in particular to a clamping tool for ball screw polishing. BACKGROUND
[0002] The ball screw is the most commonly used transmission element in tooling machinery and precision machinery, and its main function is to convert rotary motion into linear motion or convert torque into axial repeated force, and it has the characteristics of high precision, reversibility and high efficiency. The ball screw is composed of a screw rod, a nut, a steel ball, a pre-pressing piece, a reverser and a dustproof device.
[0003] The nut of the ball screw is mainly used for bearing and transmitting torque, and the internal ball is used to reduce friction, improve motion accuracy and maintain preloading to enhance system rigidity. In order to improve the accuracy and surface quality of the nut during production, the outer circle of the nut needs to be polished to ensure that the nut and the screw are more closely matched, reduce friction, and improve the motion accuracy and stability of the whole transmission system.
[0004] At present, the ball screw nut is generally polished by using an outer circle grinding machine. The outer circle grinding machine generally adopts a lever and a clamping sleeve to cooperate with each other to clamp and fix the workpiece to be polished. However, the ball screw nut is small in size, and it is not convenient to clamp the ball screw nut by using the above-mentioned method. The positioning is slow, the clamping time is long, and the overall production efficiency is low. CONTENT OF THE INVENTION
[0005] To solve the above technical problems, the utility model provides a clamping tool for ball screw polishing, and the technical problems solved are that slow positioning and long clamping time cause low overall production efficiency. To solve the above technical problems, the utility model adopts the following technical scheme:
[0006] A clamping tool for ball screw polishing, comprising:
[0007] A machine table;
[0008] A workpiece headstock provided with a main shaft and a front center, the workpiece headstock is connected to the machine table in a sliding structure in the transverse direction, the main shaft is connected to the workpiece headstock in a rotating structure, and the front center is connected to the workpiece headstock in a fixed structure through the main shaft;
[0009] A clamping sleeve connected to the main shaft in a fixed structure, a limiting groove for assembling the nut is formed in the middle of the front end of the clamping sleeve, and a hole for the front center to pass through is formed in the middle of the limiting groove;
[0010] A grinding wheel for polishing the ball screw nut, the grinding wheel is arranged on one side of the clamping sleeve, and the grinding wheel is arranged on the upper part of the machine table in a fixed structure;
[0011] The rear center is coaxially arranged with the front center in a fixed structure on the upper part of the machine table.
[0012] Further, the hole side wall is in a horn structure and is in contact with the surface of the front center.
[0013] Further, the rear center is arranged with a tailstock in a fixed structure.
[0014] Further, the upper end surface of the machine table is arranged with a slide rail in a fixed structure, and the workpiece headstock and the tailstock are connected with the machine table through the slide rail.
[0015] Further, the main shaft is arranged with a connecting sleeve in a fixed structure, the connecting sleeve is connected with the clamping sleeve in a threaded engagement mode, and the connecting sleeve is sleeved on the outside of the front center.
[0016] The beneficial effects of the utility model are: the limiting groove can drive the nut to rotate, the purpose of polishing the outer circle of the nut is realized, the hole is arranged in the limiting groove, the nut to be polished can be quickly positioned and clamped through the cooperation of the limiting groove and the hole, the clamping time is reduced, the production efficiency is improved while the accuracy and quality are ensured. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.
[0018] Figure 2 It is a part of the structure explosion structure schematic diagram of the utility model.
[0019] In the drawing:
[0020] 1, machine table, 2, workpiece headstock, 3, main shaft, 4, front center, 5, clamping sleeve, 6, limiting groove, 7, hole, 8, grinding wheel, 9, rear center, 10, tailstock, 11, slide rail, 12, connecting sleeve. CONCRETE IMPLEMENTING METHOD:
[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model will be further described in detail with reference to the drawings and the following examples, so that the public can better master the implementing method of the utility model, and the specific implementing scheme of the utility model is:
[0022] The utility model provides a ball screw polishing clamping frock, including machine table 1, machine table 1 is provided with workpiece headstock 2 with main shaft 3 and front centre 4 in sliding structure mode, main shaft 3 is connected with workpiece headstock 2 in rotating structure mode, and front centre 4 passes through main shaft 3 and is connected with workpiece headstock 2 in fixed structure mode, main shaft 3 is provided with clamping sleeve 5 in fixed structure mode, and the middle of clamping sleeve 5 front end is provided with the limiting slot 6 of assembly nut, and the hole 7 for the front centre 4 is passed through in the middle of limiting slot 6, the sand wheel 8 for polishing ball screw nut is fixedly arranged on the upper portion of the one side of machine table 1, and the rear centre 9 is fixedly arranged on the upper portion 9 of machine table 1, and the rear centre 9 is coaxially arranged with the front centre 4, by setting limiting slot 6 in clamping sleeve 5, limiting slot 6 can drive nut rotation, limiting slot 6 is provided with hole 7, and the nut to be polished can be quickly positioned and clamped by the cooperation of limiting slot 6 and hole 7, reduces the clamping time, improves production efficiency while guaranteeing accuracy and quality.
[0023] It should be noted that the side wall of the hole 7 is in a horn-shaped structure and is in contact with the surface of the front centre 4, and the angle of the inner side wall of the hole 7 and the contact surface of the front centre 4 is the same. This arrangement reduces local overheating and prevents the generation of sparks due to excessive heat during operation.
[0024] It should be noted that the rear centre 9 is provided with a tailstock 10 in a fixed structure. The upper end surface of the machine table 1 is provided with a sliding rail 11 in a fixed structure. The workpiece headstock 2 and the tailstock 10 are connected to the machine table 1 through the sliding rail 11. The design of the sliding rail 11 allows the workpiece head and the tailstock 10 to slide along the machine table 1, which assists the clamping sleeve 5 and the centre in clamping and positioning the ball screw nut of different lengths.
[0025] Further, the main shaft 3 is provided with a connecting sleeve 12 in a fixed structure. The connecting sleeve 12 is connected to the clamping sleeve 5 in a threaded engagement manner, and the connecting sleeve 12 is sleeved outside the front centre 4. The connecting sleeve 12 is mainly used to connect the clamping sleeve 5 and the main shaft 3, and this connection method is conducive to replacement and disassembly.
[0026] The working principle and working process of the utility model are as follows:
[0027] The ball screw nut side wall plane is clamped into the limiting groove 6, the nut top end is in contact with the partial front center 4 passing through the clamping sleeve 5, at this time the nut top end radius is the same as the partial front center 4 radius, the purpose of fast and accurate positioning of the nut is achieved; the operation machine 1 moves the tail seat 10 until the rear center 9 is in close contact with the other end of the nut, the tail seat 10 is stopped, the clamping and positioning of the nut are completed under the condition of ensuring good concentricity; the workpiece headstock 2 is started, the main shaft 3, the connecting sleeve 12 and the clamping sleeve 5 are driven to start rotating, the clamping sleeve 5 is positioned and rotated by the limiting groove 6, at this time the front center 4 and the rear center 9 are fixed support points and do not rotate with the nut, at the same time the grinding wheel 8 is started, the nut is polished.
[0028] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "left lower", "right upper", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Although the utility model is described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of the utility model described herein.
Claims
1. A clamping tool for ball screw polishing, characterized by, Include: Machine table (1); Workpiece headstock (2) provided with main shaft (3) and front center (4), workpiece headstock (2) is connected with machine table (1) in sliding structure along the transverse direction, main shaft (3) is connected with workpiece headstock (2) in rotating structure, front center (4) passes through main shaft (3) and is connected with workpiece headstock (2) in fixed structure; Clamping sleeve (5), clamping sleeve (5) is connected with main shaft (3) in fixed structure, clamping sleeve (5) is provided with limiting groove (6) of assembly nut in the middle of front end, limiting groove (6) is provided with hole (7) for front center (4) to pass through in the middle; Grinding wheel (8) for grinding ball screw nut, grinding wheel (8) is arranged on one side of clamping sleeve (5), grinding wheel (8) is arranged on the upper part of machine table (1) in fixed structure; Rear center (9), rear center (9) is arranged on the upper part of machine table (1) in fixed structure, rear center (9) is coaxially arranged with front center (4).
2. The clamping tool for polishing ball screw according to claim 1, wherein: The side wall of hole (7) is in the form of a trumpet and is in contact with the surface of front center (4).
3. The clamping tool for polishing ball screw according to claim 1, wherein: Rear center (9) is provided with tailstock (10) in fixed structure.
4. The clamping tool for polishing ball screw according to claim 1, wherein: The upper end surface of machine table (1) is provided with slide rail (11) in fixed structure, workpiece headstock (2) and tailstock (10) are connected with machine table (1) through slide rail (11).
5. The clamping tool for polishing ball screw according to claim 1, wherein: Main shaft (3) is provided with connecting sleeve (12) in fixed structure, connecting sleeve (12) is connected with clamping sleeve (5) in screw engagement, connecting sleeve (12) is sleeved outside front center (4).