A bearing block for workpiece rotation machining

Abstract

The utility model discloses a bearing seat for workpiece rotary processing relates to machining auxiliary equipment technical field, aims at solving the problem of narrow application scope of existing bearing seat, single clamping mode, poor stability and complicated operation. The bearing seat includes support seat, shaft sleeve, clamping rod piece, swivel ring, pin and elastic part, and support seat is the bearing base, and the shaft sleeve is rotatably connected with the support seat through the bearing and is provided with equiangular axial strip slot, and the clamping rod piece is composed of first and second rod sections with obtuse angle distribution, and the first rod section is provided with double clamping parts to form the bayonet, and the swivel ring is sleeved on the outer shaft sleeve through the thread and is located between the two rod sections, and the elastic part is V-shaped metal spring piece to keep the initial stability of clamping rod piece. By rotating the swivel ring and extruding different rod sections, the clamping part can be contracted or expanded, and then the pipe / solid piece slightly smaller than the inner diameter of the shaft sleeve, the medium diameter pipe / solid piece slightly larger than the shaft sleeve and the tubular piece much larger than the shaft sleeve can be stably clamped from outside to inside or from inside to outside respectively.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for mechanical processing, and more specifically, to a bearing seat for rotary machining of workpieces, which is suitable for the rotary machining clamping and positioning of round workpieces of different sizes and types (tubular or solid cylindrical). Background Technology

[0002] In the field of machining, bearing housings, as the core load-bearing and positioning components for workpiece rotation machining, directly affect machining accuracy, efficiency, and applicability. Existing bearing housing technologies have several limitations in practical applications: 1. Narrow applicability: Traditional bearing housing clamping structures are mostly designed with fixed dimensions, which can only accommodate workpieces of a single specification or within a limited range. For workpieces with diameters smaller than, slightly larger than, or much larger than the inner diameter of the bearing housing bushing, it is often necessary to replace the bearing housing with a different model or to equip additional clamping fixtures, resulting in increased processing costs and low work efficiency.

[0003] 2. Limited clamping method: Existing equipment can usually only achieve clamping in one direction (such as clamping only from the outside to the inside or clamping only from the inside to the outside), and cannot flexibly switch the clamping direction according to the type (tubular or solid cylindrical) and size of the workpiece. For medium-diameter and large-diameter tubular workpieces or solid cylindrical workpieces, problems such as unstable clamping and insufficient positioning accuracy are likely to occur.

[0004] 3. Insufficient ease of operation: When processing workpieces of different specifications, the adjustment process of existing bearing seats is complicated, often requiring the disassembly and replacement of multiple parts. The operation steps are cumbersome and time-consuming, making it difficult to meet the needs of efficient batch processing.

[0005] Therefore, developing a bearing housing for workpiece rotation machining that is widely applicable, flexible in clamping, highly stable, and easy to operate has become the key to solving the pain points of existing technologies. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a bearing seat for workpiece rotation machining, so as to achieve stable clamping of circular workpieces of different sizes and types, broaden the scope of application, improve machining accuracy and efficiency, and simplify the operation process.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A bearing housing for workpiece rotation machining, comprising: The support base serves as the load-bearing foundation for the workpiece rotation machining process; A bushing is rotatably connected to a support base via a bearing. The bushing has several equally spaced grooves, which are arranged along the axial direction of the bushing. A clamping rod is hinged to a strip groove by a pin. The clamping rod consists of a first rod segment and a second rod segment distributed at an obtuse angle to the first rod segment. The first rod segment is provided with a first clamping part and a second clamping part, and a bayonet is formed between the first clamping part and the second clamping part. A swivel ring is fitted over the bushing and positioned between the first rod segment and the second rod segment. The swivel ring and the bushing are connected by a thread. Two elastic elements are provided in each slot to maintain the initial stability of the clamping rod in each slot; The positioning screw has threads that penetrate the swivel and abut against the bushing.

[0008] Preferably, the bushing has a through hole, which is perpendicular to the direction of the strip groove. The pin passes through the through hole and enters the clamping rod to confine the clamping rod within the strip groove.

[0009] Preferably, the outer side of the bushing is provided with an external thread, the inner side of the swivel ring is provided with an internal thread that matches the external thread, and the outer side of the swivel ring is provided with anti-slip texture.

[0010] Preferably, the elastic element includes a metal spring sheet, which is formed by bending a single piece of elastic metal in a V-shape. A portion of the bent portion has an opening and is fixed in a slot by a screw, while the other bent portion abuts against a first or second rod segment.

[0011] Preferably, the ends of both the second clamping portion and the first clamping portion extend beyond the bushing port, and the extension length of the second clamping portion is greater than the extension length of the first clamping portion.

[0012] Preferably, both the second clamping part and the outer side of the first clamping part are provided with anti-slip tiles.

[0013] The working principle and beneficial effects of this utility model are as follows: 1. This utility model achieves stable clamping of four different sizes (slightly smaller than the inner diameter of the bushing, slightly larger than the inner diameter of the bushing, and much larger than the diameter of the bushing) and two types (tubular and solid cylindrical) of round workpieces through the special structure of the clamping rod (the first and second rod segments are distributed at an obtuse angle and the design of double clamping parts) and the adjustment function of the swivel ring. It does not require replacement of the bearing seat body or additional tooling, which greatly reduces the equipment investment cost and improves the processing flexibility.

[0014] 2. This utility model can flexibly switch the clamping direction according to the characteristics of the workpiece (clamping from the outside to the inside or clamping from the inside to the outside): by squeezing the first or second rod segment by the rotating ring, the clamping part can be contracted or expanded, ensuring that workpieces of different types and sizes can be clamped in a close fit, avoiding the problems of uneven force on the workpiece and positioning offset in the traditional clamping method, and significantly improving the processing accuracy.

[0015] 3. Each slot of this utility model is provided with two V-shaped metal spring sheet elastic elements, which can provide initial preload for the clamping rod and ensure structural stability when the workpiece is not clamped.

[0016] 4. The rotating ring and bushing of this utility model are connected by threads. With the anti-slip texture on the outside of the rotating ring, the operator only needs to rotate the rotating ring to adjust the clamping direction and clamping force. No parts need to be disassembled. The operation steps are simple and the adjustment process is precise and controllable.

[0017] 5. The components of this utility model have a high degree of integration. The rotating ring is sleeved outside the bushing and located between the first rod segment and the second rod segment, resulting in a compact structure and small space occupation. The elastic element adopts a V-shaped metal spring sheet, which is fixed in the strip groove by screws. It is easy to install and disassemble, and the elastic performance of the metal spring sheet is stable and has a long service life. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of a bearing housing for workpiece rotation processing proposed in this utility model; Figure 2 This is a schematic diagram of the overall front view of a bearing housing for workpiece rotation machining proposed in this utility model; Figure 3 This is an exploded structural diagram of the bushing, clamping rod, and swivel ring proposed in this utility model; Figure 4 This is a schematic diagram of the half-section structure of the bushing proposed in this utility model; Figure 5 This is a schematic diagram of the clamping rod structure proposed in this utility model.

[0020] In the diagram: 1. Support base; 2. Bushing; 21. Strip groove; 22. Through hole; 23. External thread; 3. Clamping rod; 31. First rod segment; 32. Second rod segment; 33. First clamping part; 34. Second clamping part; 35. Anti-slip tile; 4. Rotary ring; 41. Internal thread; 42. Anti-slip texture; 5. Pin; 6. Elastic element; 61. Metal spring; 62. Screw; 7. Positioning screw. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-5 This utility model discloses a bearing housing for workpiece rotation machining, including a support base 1, a bushing 2, a clamping rod 3, a swivel ring 4, a pin 5, an elastic element 6, and a positioning screw 7. The structure and connection relationship of each component are as follows: 1. Support base 1: As the load-bearing foundation for workpiece rotation processing, it provides stable support for the entire device and ensures the coaxiality and stability of the workpiece during rotation.

[0023] 2. Bushing 2: Rotatably connected to support base 1 via bearings, bushing 2 and support base 1 are rotatably connected via bearings, ensuring smooth rotation of the workpiece. Bushing 2 has several equally angled strip grooves 21, which are arranged along the axial direction of bushing 2. Bushing 2 also has through holes 22, which are perpendicular to the direction of the strip grooves 21, for mounting pins 5. Clamping rods 3 are hinged to the strip grooves 21 via pins 5, and pins 5 are fixed through the through holes 22. The structure is stable and the rotation is flexible, ensuring smooth adjustment and improving processing preparation efficiency, especially suitable for batch processing of workpieces of different specifications. Bushing 2 has external threads 23 on its outer side, which are used to cooperate with the swivel ring 4 to achieve adjustment. The several equally angled strip grooves 21 and clamping rods 3 ensure that the workpiece is subjected to uniform clamping force, ensuring coaxiality during workpiece rotation and further improving processing accuracy.

[0024] 3. Clamping rod 3: Hinged within the strip groove 21 via a pin 5, the clamping rod 3 consists of a first rod segment 31 and a second rod segment 32 distributed at an obtuse angle to the first rod segment 31. The first rod segment 31 has a first clamping part 33 and a second clamping part 34, forming a bayonet between them. The ends of both the second clamping part 34 and the first clamping part 33 extend beyond the port of the bushing 2, with the extension length of the second clamping part 34 being greater than that of the first clamping part 33. Anti-slip tiles 35 are provided on the outer sides of both the second clamping part 34 and the first clamping part 33, with the extension length of the second clamping part 34 being greater than that of the first clamping part 33. With the bayonet structure, it not only ensures effective clamping of medium-diameter workpieces, but also provides sufficient space for clamping large-diameter tubular workpieces, further expanding the scope of application. The anti-slip tiles 35 set on the outer side of the first clamping part 33 and the second clamping part 34 enhance the friction of the clamping surface, effectively prevent the workpiece from slipping when rotating, and improve the surface quality of the workpiece after processing. The included angle between the first rod segment 31 and the second rod segment 32 is designed to be 100°-120° to ensure that the clamping part can effectively contract or expand when the rotating ring 4 is squeezed. The ends of the first clamping part 33 and the second clamping part 34 adopt a rounded transition design to avoid sharp edges damaging the workpiece.

[0025] 4. Rotary ring 4: It is sleeved outside the bushing 2 and is located between the first rod segment 31 and the second rod segment 32. The inner side of the rotating ring 4 is provided with an internal thread 41 that matches the external thread 23 of the bushing 2, and the outer side of the rotating ring 4 is provided with anti-slip texture 42 to facilitate the operator to rotate and adjust.

[0026] 5. Elastic element 6: Two elastic elements 6 are provided in each strip groove 21. The elastic element 6 includes a metal spring sheet 61. The metal spring sheet 61 is formed by bending a whole piece of elastic metal in a V-shape. One part of the bending is opened and fixed in the strip groove 21 by screws 62. The other part of the bending abuts against the first rod segment 31 or the second rod segment 32 to maintain the initial stability of the clamping rod 3 in each strip groove 21. The metal spring sheet 61 is made of spring steel and the bending angle is 60°-90° to ensure sufficient elastic restoring force.

[0027] 6. Positioning screw 7, with threads passing through the swivel 4 and abutting against the bushing 2, is used to position the swivel 4 to prevent loosening from affecting the machining.

[0028] Based on the above structure, the clamping method of this utility model can be divided into the following four scenarios according to the workpiece size and type: 1. Scenario 1: Processing circular tubular or solid cylindrical workpieces with dimensions slightly smaller than the inner diameter of bushing 2 - Operation steps: Insert the end of the workpiece into the inside of bushing 2 along the port; the operator holds the anti-slip texture 42 of the rotating ring 4 and rotates the rotating ring 4 clockwise. The rotating ring 4 moves towards the port of bushing 2 under the action of the thread, squeezing the first rod segment 31; the first rod segment 31 rotates around the pin 5, causing the first clamping part 33 to retract inward until the anti-slip pad 35 tightly adheres to the surface of the workpiece, achieving stable clamping from the outside to the inside; start the processing equipment, and the workpiece rotates synchronously with bushing 2 to perform the processing operation.

[0029] 2. Scenario 2: Processing a medium-diameter circular tubular workpiece with dimensions slightly larger than bushing 2 - Operation steps: Align the end of the workpiece with the slot formed by the first clamping part 33 and the second clamping part 34, and insert it into the appropriate position; rotate the rotating ring 4 counterclockwise, and the rotating ring 4 moves away from the port of bushing 2, squeezing the second rod segment 32; the second rod segment 32 rotates around the pin 5, causing the first clamping part 33 to expand outward until the anti-slip pad 35 of the first clamping part 33 tightly abuts against the inner wall of the tubular workpiece, achieving tight clamping from the inside out; start the equipment for rotational processing.

[0030] 3. Scenario 3: Machining a medium-diameter solid cylindrical workpiece with dimensions slightly larger than bushing 2 - Operation steps: Insert the end of the solid cylindrical workpiece into the bayonet between the first clamping part 33 and the second clamping part 34; rotate the rotating ring 4 clockwise, the rotating ring 4 squeezes the first rod segment 31, causing the second clamping part 34 to contract inward until the anti-slip pads 35 of the first clamping part 33 and the second clamping part 34 together clamp the workpiece surface, forming a clamping and fixing from the outside to the inside; perform rotational machining operation.

[0031] 4. Scenario 4: Processing a circular tubular workpiece with dimensions much larger than bushing 2 - Operation steps: Place the end of the tubular workpiece on the outside of the port of bushing 2, so that the port of bushing 2 extends into the inside of the tubular workpiece; rotate the rotating ring 4 counterclockwise, the rotating ring 4 squeezes the second rod segment 32, driving the second clamping part 34 to expand outward until the anti-slip pad 35 of the second clamping part 34 is tightly attached to the inner wall of the tubular workpiece, achieving stable support from the inside out; start the processing equipment to complete the rotation processing.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A bearing housing for workpiece rotation machining, characterized in that, include: Support base (1) serves as the bearing base for workpiece rotation machining; The bushing (2) is rotatably connected to the support base (1) via a bearing. The bushing (2) has several equally angled strip grooves (21) and the strip grooves (21) are arranged along the axial direction of the bushing (2). The clamping rod (3) is hinged to the strip groove (21) by a pin (5). The clamping rod (3) is composed of a first rod segment (31) and a second rod segment (32) distributed at an obtuse angle to the first rod segment (31). The first rod segment (31) is provided with a first clamping part (33) and a second clamping part (34). A bayonet is formed between the first clamping part (33) and the second clamping part (34). The rotating ring (4) is sleeved outside the bushing (2) and is located between the first rod segment (31) and the second rod segment (32). The rotating ring (4) and the bushing (2) are connected by threads. Two elastic elements (6) are provided in each strip groove (21) to maintain the initial stability of the clamping rod (3) in each strip groove (21); The positioning screw (7) has its threads passing through the swivel (4) and abutting against the bushing (2).

2. The bearing housing for workpiece rotation machining according to claim 1, characterized in that, The bushing (2) has a through hole (22) which is perpendicular to the direction of the strip groove (21). The pin (5) passes through the through hole (22) and enters the clamping rod (3) to confine the clamping rod (3) within the strip groove (21).

3. The bearing housing for workpiece rotation machining according to claim 1, characterized in that, The bushing (2) has an external thread (23) on its outer side, and the swivel (4) has an internal thread (41) that matches the external thread (23) on its inner side. The swivel (4) has anti-slip texture (42) on its outer side.

4. A bearing housing for workpiece rotation machining according to claim 1, characterized in that, The elastic element (6) includes a metal spring (61), which is formed by bending a whole piece of elastic metal in a V-shape. A portion of the bending is opened and fixed in the slot (21) by a screw (62), and the other bending portion abuts against the first rod segment (31) or the second rod segment (32).

5. A bearing housing for workpiece rotation machining according to claim 1, characterized in that, The ends of the second clamping part (34) and the first clamping part (33) both extend to the outside of the bushing (2) port, and the extension length of the second clamping part (34) is greater than the extension length of the first clamping part (33).

6. A bearing housing for workpiece rotation machining according to claim 1, characterized in that, The second clamping part (34) and the first clamping part (33) are both provided with anti-slip tiles (35) on their outer sides.

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