A ball screw pair raceway polishing device

Abstract

The utility model relates to ball screw processing technical field especially is a kind of ball screw pair raceway polishing device, including base and the protective shell of being fixed in the top of base, the top of base is provided with the clamping mechanism of clamping ball screw, the side of protective shell is away from the opening being provided with in clamping mechanism, the inside horizontal mounting of protective shell has driving element, the moving end of driving element is fixed with the sliding seat of one end from the opening, the top of sliding seat is fixed with support plate. Through the structural design of sliding seat, support plate, rotating element and electric push rod, when using the device, according to the difference of helix angle of different models ball screw, flexible adjustment abrasive belt angle is matched to matching state, ensure that the adhesion of abrasive belt and helical surface when different specifications screw processing always meet grinding requirement, enhance the adaptability and practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of ball screw processing technology, specifically to a ball screw pair raceway polishing device. Background Technology

[0002] As a precision transmission component, the machining accuracy of the helical surface of the ball screw directly affects the transmission efficiency and motion smoothness. Belt grinding is one of the key processes for achieving high-precision machining of this helical surface. In existing technologies, to ensure grinding effect, the machining device usually sets the abrasive belt to a fixed angle consistent with the helix angle of the ball screw to be machined. The grinding of the helical surface is completed through the relative movement of the abrasive belt and the screw. A Chinese utility model patent (publication number: CN219666125U) discloses a ball screw raceway polishing device. When the ball screw is fixed on the clamping assembly, the top wheel assembly can push the abrasive belt into the raceway of the ball screw, so that the abrasive surface of the abrasive belt is completely in contact with the entire raceway. This allows the clamping assembly to drive the ball screw to rotate, improving the polishing effect on the raceway, reducing the roughness of the raceway, thereby improving the accuracy of the ball screw and reducing the noise of the ball screw pair during operation.

[0003] However, the above-mentioned device still has some shortcomings in use. Specifically, the helix angle of the ball screw varies with different models and specifications during production, which means that the device can only process products with specific helix angles. It is not convenient to meet the grinding needs of ball screws of multiple specifications and models, and its versatility is insufficient. Therefore, in view of the above situation, a ball screw pair raceway polishing device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a ball screw pair raceway polishing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A ball screw pair raceway polishing device includes a base and a protective shell fixed on the top of the base. The top of the base is provided with a clamping mechanism for clamping the ball screw.

[0006] An opening is provided on the side of the protective shell away from the clamping mechanism. A driving component is horizontally installed inside the protective shell. A sliding seat with one end protruding from the opening is fixed to the moving end of the driving component. A support plate is fixed to the top of the sliding seat.

[0007] A rotating component is fixed to the top of the support plate, and a mounting frame is rotatably connected to the rotating component. A sanding belt is detachably installed on the side of the mounting frame near the clamping mechanism, and a top wheel mechanism is provided on the side away from the clamping mechanism. A connecting rod is fixed to one side of the mounting frame, and an electric push rod is hinged to the top of the support plate. The moving end of the electric push rod is hinged to the crossbar of the connecting rod.

[0008] As a preferred solution of the present utility model, the rotating member comprises two support blocks fixed to the top of the support plate, a rotating shaft is rotatably connected between the two support blocks through a bearing, and the rotating shaft is fixedly connected to the bottom of the mounting frame.

[0009] As a preferred solution of the present utility model, the sliding seat is in a "C" shape, and the connecting rod is in an inverted "T" shape.

[0010] As a preferred solution of the present utility model, the mounting frame is in a "U" shape, mounting seats are respectively fixed on the top surface and the bottom surface inside the mounting frame, a mounting cavity is penetratingly formed on the mounting seat, limiting rods are respectively fixed at two ends inside the mounting cavity, a pressing plate slides jointly on the two limiting rods, a plurality of triangular teeth are fixed at the bottom of the pressing plate, a screw rod penetrates through the mounting seat in a threaded manner, and the bottom of the screw rod is rotatably connected to the pressing plate.

[0011] A bearing plate is fixed at the bottom of the mounting cavity, a triangular groove is formed on the bearing plate, after one end of the abrasive belt passes through the mounting cavity, the screw rod drives the pressing plate to descend, and the triangular teeth are engaged with the triangular groove.

[0012] As a preferred solution of the present utility model, guide blocks are respectively fixed at two ends of the pressing plate, each guide block is provided with a round hole, and the round hole is in clearance fit with the limiting rod.

[0013] As a preferred solution of the present utility model, a threaded hole communicating with the mounting cavity is penetratingly formed on the mounting seat, and the threaded hole is in threaded fit with the screw rod.

[0014] As a preferred solution of the present utility model, a knob is fixed at the end of the screw rod away from the pressing plate, and a rubber pad provided with anti-slip patterns is fixed on the knob.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: 1. According to the structural design of the sliding seat, the support plate, the rotating member and the electric push rod of the present utility model, when the device is in use, the angle of the abrasive belt can be flexibly adjusted to a matching state according to the difference of the helix angles of ball screws of different models, so as to ensure that the fitting degree between the abrasive belt and the helical surface always meets the grinding requirement when processing screws of different specifications, which enhances the adaptability and practicability of the device.

[0016] 2. According to the structural design of the mounting seat, the pressing plate, the screw rod and the bearing plate of the present utility model, when the device is in use, the abrasive belt is effectively fixed through the occlusal fit of the triangular teeth and the triangular groove, and meanwhile, after the abrasive belt is severely worn, it is convenient to quickly disassemble and replace the abrasive belt, which improves the working efficiency.

[0017] 3. In this utility model, the design of placing the driving component in the inner cavity of the protective shell and opening it away from the clamping mechanism can effectively prevent grinding debris and dust generated during the processing from entering the driving component that drives the support plate to move, avoiding problems such as component wear and jamming, reducing the equipment failure rate and maintenance frequency, extending the overall service life of the driving component, and reducing long-term use costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the support plate installation structure of this utility model; Figure 3 This is a schematic diagram of the mounting structure of the mounting bracket of this utility model; Figure 4 This is a schematic diagram of the mounting base structure of this utility model.

[0019] In the diagram: 1. Base; 2. Clamping mechanism; 3. Protective shell; 30. Opening; 4. Driving component; 5. Sliding seat; 6. Support plate; 7. Rotating component; 70. Electric push rod; 8. Mounting bracket; 80. Top wheel mechanism; 81. Sanding belt; 82. Connecting rod; 9. Mounting seat; 90. Mounting cavity; 91. Limiting rod; 92. Pressure plate; 920. Triangular tooth; 93. Screw; 94. Receiving plate; 940. Triangular groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0022] For examples, please refer to Figure 1-4 This utility model provides a technical solution: A ball screw pair raceway polishing device includes a base 1 and a protective shell 3 fixed on the top of the base 1. The top of the base 1 is provided with a clamping mechanism 2 for clamping the ball screw.

[0023] Wherein, the base is integrally formed of high-strength cast iron, and the bottom thereof is provided with an anti-slip shock pad. The clamping mechanism 2 is configured to clamp the ball screw to be processed and drive the ball screw to rotate, and the specific composition and structure thereof are the same as those of the clamping assembly in the prior art, which will not be elaborated herein.

[0024] An opening 30 is formed on the side of the protective shell 3 away from the clamping mechanism 2, a driving member 4 is horizontally installed inside the protective shell 3, a sliding seat 5 with one end penetrating through the opening 30 is fixed on the moving end of the driving member 4, and a support plate 6 is fixed on the top of the sliding seat 5.

[0025] Wherein, the driving member 4 is a high-precision ball screw module, which includes a driving motor, a ball screw and a guide rail. The driving motor is equipped with a servo control system, which is a conventional technical means for those skilled in the art, and will not be elaborated herein.

[0026] A rotating member 7 is fixed on the top of the support plate 6, a mounting frame 8 is rotatably connected to the rotating member 7, an abrasive belt 81 is detachably mounted on the side of the mounting frame 8 close to the clamping mechanism 2, a top wheel mechanism 80 is disposed on the side away from the clamping mechanism 2, a connecting rod 82 is fixed on one side of the mounting frame 8, an electric push rod 70 is hinged on the top of the support plate 6, and the moving end of the electric push rod 70 is hinged on the cross rod of the connecting rod 82.

[0027] Wherein, the specific composition and structure of the top wheel mechanism 80 are the same as those of the top wheel assembly in the prior art, which will not be elaborated herein. In this embodiment, the rotating member 7 includes two support blocks fixed on the top of the support plate 6, a rotating shaft is rotatably connected between the two support blocks through a bearing, and the rotating shaft is fixedly connected with the bottom of the mounting frame 8.

[0028] In this embodiment, the sliding seat 5 is in a "C" shape, and the connecting rod 82 is in an inverted "T" shape.

[0029] Wherein, the inverted "T" shaped structure of the connecting rod 82 includes a longitudinal rod and a transverse rod, the longitudinal rod is welded and fixed to the mounting frame 8, two ends of the transverse rod are provided with hinge holes matching the moving end of the electric push rod 70, and a self-lubricating bearing is arranged at the hinge position.

[0030] In this embodiment, the mounting frame 8 is in a "U" shape with one side open, the opening of the "U" shaped structure faces the clamping mechanism 2, the top surface and the bottom surface inside the mounting frame 8 are respectively fixed with a mounting seat 9, a mounting cavity 90 is formed through the mounting seat 9, two ends inside the mounting cavity 90 are respectively fixed with a limiting rod 91, a pressing plate 92 slides on the two limiting rods 91 together, a plurality of triangular teeth 920 are fixed at the bottom of the pressing plate 92, a screw 93 penetrates through the mounting seat 9 in a threaded manner, and the bottom of the screw 93 is rotatably connected to the pressing plate 92 through a bearing.

[0031] A receiving plate 94 is fixed at the bottom of the mounting cavity 90. A triangular groove 940 is provided on the receiving plate 94. After one end of the sanding belt 81 passes through the mounting cavity 90, the screw 93 drives the pressure plate 92 to descend, and the triangular teeth 920 engage with the triangular groove 940.

[0032] Among them, the triangular teeth 920 of the pressure plate 92 are distributed in a sawtooth shape, the triangular grooves 940 of the receiving plate 94 are adapted to the triangular teeth 920 one by one, the limiting rod 91 provides guidance for the pressure plate 92 to ensure that the pressure plate is vertically raised and lowered without deviation, the screw 93 realizes the micro-feed adjustment of the pressure plate 92, improves the controllability of the tightness of the sand belt 81, and the meshing of the triangular teeth 920 and the triangular grooves 940 increases the clamping friction on the end of the sand belt 81 to prevent the sand belt from sliding or falling off during the polishing process.

[0033] In this embodiment, guide blocks are fixed at both ends of the pressure plate 92, and the guide blocks have round holes that are clearance-fitted with the limiting rod 91.

[0034] The guide block and the pressure plate 92 are integrally formed, and the inner wall of the round hole is provided with a wear-resistant coating.

[0035] In this embodiment, the mounting base 9 has a threaded hole that communicates with the mounting cavity 90, and the threaded hole is threadedly engaged with the screw 93.

[0036] In this embodiment, a knob is fixed to the end of the screw 93 away from the pressure plate 92, and a rubber pad with anti-slip texture is fixed to the knob.

[0037] The anti-slip texture of the knob makes it easy for operators to manually turn it, allowing for the installation and removal of the sanding belt 81 without the need for additional tools.

[0038] The working process of this utility model: When the ball screw pair raceway polishing device designed in this solution is running: The ball screw to be processed is fixed by the clamping mechanism 2 to ensure that the screw axis coincides with the processing reference line of the device.

[0039] Pass both ends of the sanding belt 81 through the mounting cavities 90 of the mounting seats 9 on both sides of the mounting frame 8, and place them on the triangular grooves 940 of the receiving plate 94. Manually turn the knob of the screw 93 to drive the pressure plate 92 to descend along the limit rod 91, so that the triangular teeth 920 mesh with the triangular grooves 940, and firmly clamp the ends of the sanding belt. Adjust the position of the top wheel by adjusting the bolt of the top wheel mechanism 80 to keep the sanding belt in a taut state and prevent it from loosening during polishing.

[0040] Based on the helix angle parameters of the ball screw to be processed, the electric push rod 70 is started by the control switch. The moving end of the electric push rod 70 extends and retracts, causing the connecting rod 82 to rotate around the rotating shaft of the rotating part 7, thereby driving the mounting bracket 8 to rotate synchronously until the angle of the sanding belt 81 is completely matched with the helix angle of the screw. The stroke encoder of the electric push rod 70 feeds back the positioning signal to ensure that the angle adjustment is accurate and then the position is locked.

[0041] Re-activating another switch of clamping mechanism 2 drives the ball screw to rotate. The sand belt 81 makes close contact with the screw raceway for polishing. During the process, the protective shell 3 can prevent a large amount of debris and dust from interfering with the drive component 4.

[0042] The electric push rod 70 and the driving component 4 used in this utility model are both existing known electrical devices, and both can be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the electric push rod 70 and the driving component 4 will not be described in detail here.

[0043] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0044] 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 ball screw pair raceway polishing device, comprising a base (1), wherein a clamping mechanism (2) for clamping a ball screw is provided on the top of the base (1), characterized in that, Further comprising: A protective shell (3) fixed to the top of the base (1), wherein an opening (30) is opened on the side of the protective shell (3) facing away from the clamping mechanism (2), a driving member (4) is horizontally mounted inside the protective shell (3), a sliding seat (5) with one end passing through the opening (30) is fixed to the movable end of the driving member (4), and a support plate (6) is fixed to the top of the sliding seat (5); A rotating member (7) is fixed to the top of the support plate (6), a mounting frame (8) is rotatably connected to the rotating member (7), an abrasive belt (81) is detachably mounted on the side of the mounting frame (8) close to the clamping mechanism (2), a top wheel mechanism (80) is arranged on the side facing away from the clamping mechanism (2), a connecting rod (82) is fixed to one side of the mounting frame (8), an electric push rod (70) is hinged to the top of the support plate (6), and the movable end of the electric push rod (70) is hinged to the cross rod of the connecting rod (82).

2. The ball screw pair raceway polishing device according to claim 1, characterized in that: The rotating member (7) comprises two support blocks fixed to the top of the support plate (6), a rotating shaft is rotatably connected between the two support blocks through a bearing, and the rotating shaft is fixedly connected to the bottom of the mounting frame (8).

3. The ball screw pair raceway polishing device according to claim 1, characterized in that: The sliding seat (5) is in a "C" shape, and the connecting rod (82) is in an inverted "T" shape.

4. The ball screw pair raceway polishing device according to claim 2, characterized in that: The mounting frame (8) is in a "U" shape, mounting seats (9) are respectively fixed to the top surface and the bottom surface inside the mounting frame (8), a mounting cavity (90) is penetratingly opened on the mounting seat (9), limit rods (91) are respectively fixed to two ends inside the mounting cavity (90), a pressing plate (92) slides jointly on the two limit rods (91), a plurality of triangular teeth (920) are fixed to the bottom of the pressing plate (92), a screw rod (93) is threaded through the mounting seat (9), and the bottom end of the screw rod (93) is rotatably connected to the pressing plate (92); A bearing plate (94) is fixed to the bottom of the mounting cavity (90), a triangular groove (940) is opened on the bearing plate (94), after one end of the abrasive belt (81) passes through the mounting cavity (90), the screw rod (93) drives the pressing plate (92) to descend, and the triangular teeth (920) are engaged with the triangular groove (940).

5. The ball screw pair raceway polishing device according to claim 4, characterized in that: Guide blocks are respectively fixed to two ends of the pressing plate (92), the guide blocks are provided with round holes, and the round holes are in clearance fit with the limit rods (91).

6. The ball screw pair raceway polishing device according to claim 4, characterized in that: A threaded hole communicating with the mounting cavity (90) is penetratingly opened on the mounting seat (9), and the threaded hole is in threaded fit with the screw rod (93).

7. The ball screw pair raceway polishing device according to claim 6, characterized in that: A knob is fixed to the end of the screw rod (93) facing away from the pressing plate (92), and a rubber pad provided with anti-slip patterns is fixed on the knob.

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