Turning clamp for machining hub bearing

Abstract

The utility model relates to the technical field of turning clamps, and discloses a turning clamp for machining a hub bearing, a transmission worm meshed with a transmission worm gear is arranged in the middle of a shaft rod of a transmission shaft, a rail sliding groove of a tensioning guide rail is distributed in the circumferential direction and is connected with a plurality of sets of guide sliding tables in a sliding mode, and the guide sliding tables are arranged on the transmission worm. The upper end of each guide sliding table is provided with a rail sliding buckle guiding the clamping base, the upper end of each rail sliding buckle is provided with a supporting table, and a clamping arm is installed on a rack back plate of the supporting table. On the basis that the combination of the transmission worm and the transmission worm gear is used as driving force, the tensioning guide rail and the guide sliding table are driven to rotate in a combined mode, rotating force is converted into horizontal butt-clamping force, the corresponding clamping arms are pushed to move in a linkage and integrated butt-clamping mode, and multi-point linkage butt-clamping fixing is carried out on hub bearings. And on the other hand, more stable stress clamping is achieved, and clamping of all points is more uniform in stress.

Description

Technical Field

[0001] The utility model relates to the technical field of turning fixtures, and particularly relates to a turning fixture for machining hub bearings. Background Technique

[0002] The hub bearing is one of the key components of an automobile. Its main function is to bear the weight and provide precise guidance for the rotation of the hub. When the hub bearing is produced and processed, the turning process is usually concentrated before the workpiece heat treatment. Before processing, it is often necessary to match the corresponding tooling fixture to ensure the stability of its turning process. For example, a turning fixture for hub bearing machining disclosed on the Chinese Patent Network (Publication No. CN217800234U). When such a fixture processes the hub bearing, the hub bearing is placed between two groups of first clamping blocks and second clamping blocks, and then the adjusting rod moves relative to the first support plate, so that the adjusting plate drives the distance between the second clamping block and the first clamping block to be adjusted. The support seat is fixed to the second clamping block through the support rod, the second clamping block is supported by the support seat and the support rod, and the ball can be engaged with the support seat through the rotating groove, which is convenient for moving the second clamping block and fixing the hub bearing, making the fixing efficiency of the fixture higher.

[0003] However, for the above-mentioned disclosed patents and the hub bearing turning fixtures adopted in the existing market, there are still some deficiencies: the existing method of using horizontal and vertical adjusting components to clamp two opposite groups of clamping blocks to clamp the hub bearing has a cumbersome operation. It is necessary to continuously adjust the orientation of the clamping blocks to match the hub bearing, which is time-consuming and laborious, and the uniform clamping stability of the hub bearing is also poor. Therefore, technical personnel in this field have provided a turning fixture for machining hub bearings to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a turning fixture for machining hub bearings, which can effectively solve the problems of the existing hub bearing turning fixture in the background technique, such as cumbersome operation and poor clamping stability.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a turning fixture for machining hub bearings, including a clamping seat and a transmission seat installed on one side of the clamping seat;

[0006] A transmission worm gear is rotatably connected inside the support of the clamping seat, and a transmission shaft is rotatably connected inside the support of the transmission seat, and a transmission worm meshing with the transmission worm gear is arranged in the middle of the shaft of the transmission shaft;

[0007] A rotating table is provided at the upper end of the tooth disc of the driving worm gear, and a tensioning guide rail is provided on the upper table surface of the rotating table. The track chute of the tensioning guide rail is arranged in a circumferential form and slidably connected with a plurality of guiding sliders. The upper end of each guiding slider is provided with a track slider that is guided by the clamping seat. The upper end of the track slider is provided with a support table, and a clamping arm is installed on the back plate of the support table frame.

[0008] As a further solution of the present utility model: Angular output heads are installed at both ends of the shaft rod of the transmission shaft.

[0009] As a further solution of the present utility model: The tensioning guide rail is of a spiral structure.

[0010] As a further solution of the present utility model: Axially arranged track chutes for guiding the track sliders are provided on the upper seat surface of the clamping seat.

[0011] As a further solution of the present utility model: A limiting guide rail is installed on the back plate of the support table frame. An assembly slider that is guided by the limiting guide rail is provided at the bottom of the support arm of the clamping arm. The limiting guide rail and the assembly slider are fixedly connected by a fastening bolt.

[0012] As a further solution of the present utility model: The number of the clamping arms is multiple, and the multiple clamping arms are arranged in a stepped form. Anti-slip teeth are provided on the clamping surface of the clamping arm.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. When the present utility model is used for turning and clamping a hub bearing, after the hub bearing is placed on the clamping seat, based on the combination of the driving worm and the driving worm gear as the driving force, the combination of the tensioning guide rail and the guiding slider is driven to rotate, and the rotational force is converted into a horizontal clamping force, pushing the corresponding clamping arms to move in a linkage and integral clamping manner, and performing multi-point linkage clamping fixation on the hub bearing. On the one hand, it has a simple and convenient operation performance, and the operation is simpler and more convenient. On the other hand, it has a more stable force clamping, and each point is more evenly stressed.

[0015] 2. When the turning fixture of the present utility model is used, by flexibly replacing the fixture in the forward and reverse directions, it can be used as the inner support and outer clamping handle of the hub bearing, and can be flexibly clamped and adapted to the hub bearing. While having higher applicability, the manufacturing cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a turning fixture for machining a hub bearing of the present utility model;

[0017] Figure 2This is a partial explosion diagram of a turning fixture for machining hub bearings of the present utility model;

[0018] Figure 3 This is a schematic diagram of replacing the clamping arm in a turning fixture for machining hub bearings of the present utility model.

[0019] In the figure: 1, clamping seat; 2, driving seat; 3, track chute; 4, support platform; 5, clamping arm; 6, transmission shaft; 7, driving worm; 8, driving worm gear; 9, rotating table; 10, tensioning guide rail; 11, guiding slide table; 12, track sliding buckle; 13, limiting guide rail; 14, assembly slide table; 15, fastening bolt. Specific embodiments

[0020] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Please refer to Figures 1-3As shown in the figure, a turning fixture for machining a hub bearing includes a clamping seat 1 and a transmission seat 2 installed on one side of the clamping seat 1. A transmission worm gear 8 is rotatably connected inside the support of the clamping seat 1, and a transmission shaft 6 is rotatably connected inside the support of the transmission seat 2. A transmission worm 7 meshing with the transmission worm gear 8 is arranged in the middle of the shaft rod of the transmission shaft 6. Angular output heads are installed at both ends of the shaft rod of the transmission shaft 6. By controlling the rotation of the transmission shaft 6, the transmission worm 7 is driven to rotate. Using the transmission combination of the transmission worm 7 and the transmission worm gear 8 as a driving source, the corresponding clamping arms 5 are driven to move in an integrated and linked manner for clamping, and the hub bearing is uniformly and stably clamped.

[0024] A rotating table 9 is arranged at the upper end of the tooth disc of the transmission worm gear 8, and a tensioning guide rail 10 is arranged on the upper table surface of the rotating table 9. The track chute of the tensioning guide rail 10 is arranged in a circumferential form and slidably connected with multiple groups of guiding sliders 11. The upper end of each group of guiding sliders 11 is provided with a track slider 12 guiding the clamping seat 1. The upper end of the track slider 12 is provided with a support table 4. The tensioning guide rail 10 is a spiral structure. Axially arranged track chutes 3 guiding the track slider 12 are arranged on the upper seat surface of the clamping seat 1. When the transmission worm gear 8 rotates, the rotating table 9 is driven to rotate, and then the spiral tensioning guide rail 10 is driven to rotate. Using the guide adaptation of the tensioning guide rail 10 and the track slider 12, the rotational thrust is converted into a horizontal thrust to push the track slider 12 to slide along the track chute 3, and then the clamping arms 5 slide symmetrically to clamp and fix the hub bearing.

[0025] Clamping arms 5 are installed on the back plate of the support table 4 of the support table 4. A limit guide rail 13 is installed on the back plate of the support table 4 of the support table 4. An assembly slider 14 guiding the limit guide rail 13 is arranged at the bottom of the support arm of the clamping arm 5. The limit guide rail 13 and the assembly slider 14 are screwed and fixed through a fastening bolt 15. By using the guide adaptation of the limit guide rail 13 and the assembly slider 14, the clamping arm 5 and the support table 4 are inserted and adapted for installation, and are integrally fixed by the bolt fastening of the fastening bolt 15. By symmetrically arranging the clamping surfaces of the clamping arms 5 inward, they can be used as external clamping components for the hub bearing to clamp and fix the outer ring of the hub bearing. By symmetrically arranging the clamping surfaces of the clamping arms 5 outward, they can be used as internal support components for the hub bearing to internally support and fix the inner ring of the hub bearing, and its flexible adaptation performance is better.

[0026] The number of the clamping arms 5 is multiple groups, and the multiple groups of clamping arms 5 are arranged in a stepped form. Anti-slip teeth are arranged on the clamping surfaces of the clamping arms 5. By arranging the clamping arms 5 in a stepped structure in multiple groups, it can adapt to hub bearings of different models, and the on-site flexible clamping adaptation performance is better.

[0027] The working principle of the present utility model is as follows: When turning and clamping a hub bearing, according to the clamping method, when it is necessary to clamp the outer ring of the hub bearing, the clamping surfaces of the clamping arms 5 are symmetrically arranged inward to serve as the outer clamping component of the hub bearing to clamp and fix the outer ring of the hub bearing. When it is necessary to clamp the inner ring of the hub bearing, the clamping surfaces of the clamping arms 5 are symmetrically arranged outward to serve as the inner supporting component of the hub bearing to internally support and fix the inner ring of the hub bearing;

[0028] Then, place the hub bearing to be turned between the clamping arms 5, control the rotation of the transmission shaft 6 to drive the rotation of the transmission worm 7, and use the transmission combination of the transmission worm 7 and the transmission worm wheel 8 as the driving source to drive the rotation of the rotating table 9, and then drive the rotation of the tensioning guide rail 10 with a spiral structure. Utilize the guide rail adaptation of the tensioning guide rail 10 with a spiral structure and the track slider 12 to convert the rotational thrust into a horizontal thrust, push the track slider 12 to slide along the track chute 3, and then make the clamping arms 5 slide symmetrically to perform the fixing work in the form of internal support clamping or external clamping of the hub bearing. While its clamping force is more stable, the operation is simpler and more convenient.

[0029] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A turning fixture for machining a wheel hub bearing, characterized in that: It comprises a clamping seat (1) and a transmission seat (2) installed on one side of the clamping seat (1); A transmission worm wheel (8) is rotatably connected inside the support of the clamping seat (1), a transmission shaft (6) is rotatably connected inside the support of the transmission seat (2), and a transmission worm (7) meshing with the transmission worm wheel (8) is provided in the middle of the shaft of the transmission shaft (6); A rotating table (9) is arranged at the upper end of the toothed disc of the transmission worm wheel (8), and a tensioning guide rail (10) is arranged on the upper table surface of the rotating table (9). The track grooves of the tensioning guide rail (10) are arranged in a circumferential form and are slidably connected to multiple groups of guide slides (11), and the upper end of each group of guide slides (11) is provided with a track buckle (12) guided by the clamp seat (1), and a support table (4) is arranged at the upper end of the track buckle (12), and a clamp arm (5) is installed on the back plate of the support table (4).

2. A turning fixture for machining a hub bearing according to claim 1, characterized in that: Angular output heads are installed at both ends of the shaft of the transmission shaft (6).

3. A turning fixture for machining a hub bearing according to claim 1, characterized in that: The tensioning guide rail (10) is a spiral structure.

4. A turning fixture for machining a hub bearing according to claim 1, characterized in that: The upper seat surface of the clamp seat (1) is axially arranged with a track sliding groove (3) that guides the track sliding buckle (12).

5. The turning fixture for machining a hub bearing according to claim 1, characterized in that: A limiting guide rail (13) is installed on the back plate of the support platform (4), and an assembly slide (14) guided by the limiting guide rail (13) is arranged at the bottom of the support arm of the clamping arm (5), and the limiting guide rail (13) and the assembly slide (14) are screwed and fixed by fastening bolts (15).

6. A turning fixture for machining a hub bearing according to claim 1, characterized in that: The number of the clamping arms (5) is multiple, and the multiple groups of clamping arms (5) are arranged in a step-shaped manner, and the clamping surfaces of the clamping arms (5) are provided with anti-slip teeth.

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