Bearing clamping tool

Abstract

The utility model provides a bearing clamping tool which comprises a working table and a mounting plate fixedly connected to one side of the working table, a base is fixedly connected to the mounting plate, a clamping component used for clamping a bearing is arranged on the base, and a machining assembly located on one side of the clamping component is arranged on the working table. The clamping component comprises a movable plate arranged on the base in a sliding mode and two clamping plates arranged on the movable plate in a sliding mode, two movable seats are arranged on the base in a sliding mode, and the two movable seats are connected with the two clamping plates in a sliding mode respectively. The clamping plate and the movable base are arranged in a sliding mode so that the workpiece can move in the horizontal direction in the firm clamping state to meet the movable machining requirement. According to the bearing clamping tool, through double guidance of the T-shaped sliding strip and the sliding groove, it is guaranteed that the clamping plate can stably move in the horizontal direction in the state of clamping a workpiece, machining precision is remarkably improved, and investment of labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing processing device technical field, concretely relates to a bearing clamping tool. BACKGROUND

[0002] As the core component of mechanical transmission system, the installation precision of bearing directly affects the running stability and service life of equipment, and the bearing clamping tool is a key device for fixing bearing and guiding processing cutter in the bearing processing or assembly process, needs to satisfy the needs of firm clamping, accurate positioning and adaptation to different specifications workpieces, the traditional bearing clamping tool usually adopts rigid fixture or pneumatic chuck, and the workpiece is limited to move through fixed structure, but in actual application, when the workpiece needs to move along the horizontal direction to process, the friction resistance of rigid clamping structure and guiding part is big, and it is easy to cause clamping force fluctuation due to workpiece size deviation or processing vibration, so it is difficult to keep high-precision positioning in the moving process, which seriously affects the processing efficiency and product quality.

[0003] The existing bearing clamping tool can realize basic clamping function, but in actual application, the key defect that workpiece clamping and moving processing cannot be considered stability exists: when the workpiece is fixed through the clamping part and moves horizontally to process, the traditional rigid clamping structure is easy to cause clamping force fluctuation due to workpiece size deviation or processing vibration, and the friction resistance of guiding part is big, and the response is lag, so it cannot ensure that the workpiece keeps high-precision positioning in the moving process, finally affects the processing quality and efficiency.

[0004] Therefore, the utility model provides a bearing clamping tool. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of bearing clamping tools, which can ensure that workpiece keeps high-precision positioning in the moving process, and solve the problem that the traditional bearing clamping tool cannot ensure that workpiece keeps high-precision positioning in the moving process.

[0006] To solve the above technical problem, the utility model adopts the following technical scheme: a kind of bearing clamping tool, including workbench and the mounting plate fixedly connected in the workbench one side, the mounting plate is fixedly connected with base, the base is provided with the clamping part for clamping bearing, workbench is provided with the processing assembly located in the clamping part side;

[0007] The clamping part includes movable plate and two clamping plates, the movable plate is slidably arranged on the base, and the two clamping plates are slidably arranged on the movable plate, two movable seats are slidably arranged on the base, and the two movable seats are slidably connected with the two clamping plates, and the sliding arrangement of the clamping plate and the movable seat is used to move the workpiece along the horizontal direction in the firm clamping state to meet the moving processing demand.

[0008] Preferably, a motor is arranged in the base, an output end of the motor is fixedly connected with a first gear, the first gear is rotatably connected to the base, a second gear, a third gear and a fourth gear are also rotatably connected to the base, the second gear and the third gear are in meshing connection with the first gear, and the fourth gear is in meshing connection with the third gear;

[0009] The bottom of each of the two movable plates is fixedly connected with a first rack and a second rack, the first rack and the second rack are both slidingly arranged on the base, the first rack is in meshing connection with the second gear, and the second rack is in meshing connection with the fourth gear;

[0010] The motor is used to drive the two movable seats to drive the clamping plates to move close to or away from each other to adapt to workpieces of different sizes.

[0011] Preferably, the first rack and the second rack are both fixedly connected with a second slide bar in T-shaped cross section, the base is provided with a second sliding groove in size adapted to the second slide bar, and the second slide bar and the second sliding groove are used to limit the movable seat to ensure the stability of the movable seat.

[0012] Preferably, the side of each of the two clamping plates close to the movable plate is fixedly connected with two slide blocks in T-shaped cross section, the movable plate is provided with a horizontal active groove in size adapted to the slide blocks, and the slide blocks and the active groove are used to keep the clamping plate stable when moving in the horizontal direction.

[0013] Preferably, the mounting plate is fixedly connected with an electric push rod, the fixed end of the electric push rod is fixedly connected with the mounting plate, the extending end of the electric push rod is fixedly connected with the movable plate, the electric push rod is used to extend and retract to drive the movable plate and the two clamping plates to move to adjust the horizontal distance between the workpiece and the machining assembly, each of the two clamping plates is fixedly connected with a first slide bar in T-shaped cross section, each of the two movable seats is fixedly connected with a first sliding groove in size adapted to the two first slide bars, and the first slide bar and the first sliding groove are used to ensure the relative stability of the clamping plate and the workpiece when the electric push rod drives the clamping plate and the workpiece to move, so as to ensure the machining precision.

[0014] Preferably, one side of the clamping plate for clamping the workpiece is provided with a stripe texture in the axial direction, the width of the stripe texture is 1-3 mm, the depth of the stripe texture is 0.1-0.3 mm, and the stripe pitch is 5-8 mm, the stripe texture enhances the clamping force by increasing the roughness of the contact surface, and prevents the workpiece from moving during machining or moving.

[0015] Preferably, the sliding contact surface between the movable seat and the base is designed in clearance fit, and the clearance range is 0.05-0.15 mm.

[0016] When the motor drives the movable seat to move the clamping plate, the movable seat compensates the stress concentration caused by the size deviation of the workpiece through slight sliding in the gap, avoiding damage or clamping failure of the workpiece caused by sudden change of clamping force.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. The bearing clamping tool provided by the utility model realizes automatic adjustment of the spacing of the clamping plates through axial displacement adjustment of the motor-driven gear rack system and the electric push rod, can be compatible with workpieces of different sizes, improves the applicability of the device, and ensures that the clamping plates can move stably in the horizontal direction in the state of clamping workpieces through the double guidance of the T-shaped sliding bar and the sliding groove, significantly improves the machining precision and reduces the investment of labor cost.

[0019] 2. The bearing clamping tool provided by the utility model is designed through gap cooperation of the movable seat and the base, allows the movable seat to slide slightly under stress, absorbs stress concentration caused by machining vibration and size deviation of the workpiece, avoids damage or loosening of the workpiece caused by sudden change of clamping force, and is especially suitable for continuous machining of precision bearings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification provide further understanding of the utility model, the schematic embodiments of the utility model and the description thereof serve to explain the utility model, and do not constitute undue limitation on the utility model.

[0021] In the drawings:

[0022] Figure 1 It is a schematic view of the internal structure of an embodiment of the utility model.

[0023] Figure 2 It is Figure 1 It is an enlarged view of position A in the middle.

[0024] Figure 3 It is a state diagram of the workpiece when the clamping plate moves in an embodiment of the utility model.

[0025] Figure 4 It is a schematic view of the internal structure of an embodiment of the utility model.

[0026] Figure 5 It is a schematic view of the internal structure of an embodiment of the utility model.

[0027] In the figure: 1, workbench, 2, mounting plate, 21, base, 22, electric push rod, 3, clamping component, 31, movable plate, 32, clamping plate, 321, stripe texture, 33, movable seat, 34, motor, 35, first gear, 36, second gear, 37, third gear, 38, fourth gear, 39, first rack, 310, second rack, 311, slider, 312, movable slot, 313, first sliding bar, 314, first sliding slot, 315, second sliding bar, 316, second sliding slot. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. In the case of no conflict, the embodiments in the application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0029] Please refer to Figures 1-5 .

[0030] The bearing clamping tool comprises a workbench 1 and a mounting plate 2 fixedly connected to one side of the workbench 1, the mounting plate 2 is fixedly connected with a base 21, the base 21 is provided with a clamping component 3 for clamping a bearing, and the workbench 1 is provided with a machining assembly located at one side of the clamping component 3; the clamping component 3 comprises a movable plate 31 slidably arranged on the base 21 and two clamping plates 32 slidably arranged on the movable plate 31, two movable seats 33 are slidably arranged on the base 21, the two movable seats 33 are slidably connected with the two clamping plates 32 respectively, and the clamping plates 32 and the movable seats 33 are slidably arranged for enabling a workpiece to move in a horizontal direction in a firm clamping state to meet the requirement of mobile machining, so that the synchronous control of workpiece clamping and horizontal movement can be realized through the slidable connection between the movable plate 31 and the movable seat 33, the clamping stability is ensured, the requirement of mobile machining is met, and the problem that the traditional tooling cannot simultaneously consider clamping and dynamic machining is solved.

[0031] The base 21 is provided with a motor 34, the output end of the motor 34 is fixedly connected with a first gear 35, the first gear 35 is rotatably connected to the base 21, the base 21 is also rotatably connected with a second gear 36, a third gear 37 and a fourth gear 38, the second gear 36 and the third gear 37 are both in meshing connection with the first gear 35, the fourth gear 38 is in meshing connection with the third gear 37; the bottom of the two movable plates 31 is fixedly connected with a first rack 39 and a second rack 310 respectively, the first rack 39 and the second rack 310 are both slidingly arranged on the base 21, the first rack 39 is in meshing connection with the second gear 36, and the second rack 310 is in meshing connection with the fourth gear 38; the motor 34 is used to drive the two movable seats 33 to drive the clamping plates 32 to approach or move away from each other to adapt to workpieces of different sizes, so that the automatic adjustment of the distance between the clamping plates 32 can be realized through the gear and rack transmission system, different size workpieces can be adapted without manual intervention, and the clamping efficiency and processing flexibility are significantly improved.

[0032] Secondly, the first rack 39 and the second rack 310 are both fixedly connected with a second slide 315 arranged in a T-shaped cross section, the base 21 is provided with a second sliding groove 316 with a size matched with the second slide 315, the second slide 315 and the second sliding groove 316 are used to limit the movable seat 33 to ensure the stability of the movable seat 33, that is, the cooperation of the T-shaped slide and the sliding groove can limit the non-axial displacement of the movable seat 33, avoid the deviation caused by the lateral force in the gear and rack transmission process, and ensure the clamping precision and system life.

[0033] Thirdly, the side of the two clamping plates 32 close to the movable plate 31 is fixedly connected with two slides 311 arranged in a T-shaped cross section, the movable plate 31 is provided with a horizontal active groove 312 matched with the slide 311, the slide 311 and the active groove 312 are used to keep the clamping plate 32 stable when moving horizontally, so that the slide 311 and the active groove 312 can provide a rigid guide path for the horizontal movement of the clamping plate 32, inhibit vibration and radial runout, and ensure the positioning accuracy of the workpiece during processing.

[0034] Further, the mounting plate 2 is fixedly connected with an electric push rod 22, the fixed end of the electric push rod 22 is fixedly connected with the mounting plate 2, the extending end of the electric push rod 22 is fixedly connected with the movable plate 31, and the electric push rod 22 is used to drive the movable plate 31 and the two clamping plates 32 to move when the electric push rod 22 is extended and retracted, so as to adjust the horizontal distance between the workpiece and the machining assembly. The two clamping plates 32 are fixedly connected with first sliding strips 313 in T-shaped cross section, and the two movable seats 33 are fixedly connected with first sliding grooves 314 which are matched with the two first sliding strips 313 respectively. The first sliding strips 313 and the first sliding grooves 314 are used to ensure the relative stability of the clamping plate 32 and the workpiece when the electric push rod 22 drives the clamping plate 32 and the workpiece to move, so as to ensure the machining precision. In this way, the clamping assembly can be driven by the electric push rod 22 to move axially as a whole, the distance between the workpiece and the machining assembly can be accurately adjusted, the positioning precision is improved by the guiding function of the T-shaped sliding strip and the sliding groove, and the precise machining requirement is met.

[0035] Specifically, the clamping plate 32 is provided with spaced stripe textures 321 in the axial direction for clamping one side of the workpiece. The width of the stripe texture 321 is 1-3 mm, the depth is 0.1-0.3 mm, and the stripe pitch is 5-8 mm. The stripe texture 321 enhances the clamping force by increasing the roughness of the contact surface, prevents the workpiece from moving during machining or moving, and optimizes the friction coefficient of the contact surface through parameterized design. On the premise of not damaging the surface of the workpiece, the uniformity of the clamping force and the anti-vibration performance are improved, and it is especially suitable for high-speed or large cutting force working conditions.

[0036] Further, the sliding contact surface between the movable seat 33 and the base 21 is designed in clearance fit, and the clearance range is 0.05-0.15 mm. When the motor 34 drives the movable seat 33 to move the clamping plate 32, the movable seat 33 compensates for the stress concentration caused by the size deviation of the workpiece through slight sliding in the clearance, avoids the damage to the workpiece or the clamping failure caused by the sudden change of the clamping force. It should be noted that the clearance fit allows the movable seat 33 to produce a micro displacement when it is stressed, absorbs the impact load caused by machining vibration and workpiece size tolerance, prevents overload clamping or clamping failure, and improves the reliability of the tooling.

[0037] When using the device, first, the motor 34 controls the two movable seats 33 and the clamping plate 32 to move closer to or farther away from each other to adapt the device to different types of bearings. Then, if it is necessary to adjust the position of the bearing and the machining assembly during machining, the extension and retraction of the electric push rod 22 can be used to achieve this.

[0038] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A bearing clamping fixture, characterized in that: It includes a workbench (1) and a mounting plate (2) fixedly connected to one side of the workbench (1). A base (21) is fixedly connected to the mounting plate (2). A clamping component (3) for clamping bearings is provided on the base (21). A processing component located on one side of the clamping component (3) is provided on the workbench (1). The clamping component (3) includes a movable plate (31) slidably disposed on the base (21) and two clamping plates (32) slidably disposed on the movable plate (31). Two movable seats (33) are slidably disposed on the base (21). The two movable seats (33) are slidably connected to the two clamping plates (32) respectively. The sliding arrangement of the clamping plates (32) and the movable seats (33) is used to allow the workpiece to move in the horizontal direction under a firm clamping state to meet the mobile processing requirements.

2. The bearing clamping fixture as described in claim 1, characterized in that: A motor (34) is provided inside the base (21). The output end of the motor (34) is fixedly connected to a first gear (35). The first gear (35) is rotatably connected to the base (21). A second gear (36), a third gear (37), and a fourth gear (38) are also rotatably connected to the base (21). The second gear (36) and the third gear (37) are both meshed with the first gear (35). The fourth gear (38) is meshed with the third gear (37). The bottom of the two movable plates (31) are respectively fixedly connected to a first rack (39) and a second rack (310). The first rack (39) and the second rack (310) are slidably disposed on the base (21). The first rack (39) is meshed with the second gear (36), and the second rack (310) is meshed with the fourth gear (38). The motor (34) is used to drive the two movable seats (33) to move the clamping plates (32) closer or further apart to accommodate workpieces of different sizes.

3. The bearing clamping fixture as described in claim 2, characterized in that: The first rack (39) and the second rack (310) are both fixedly connected with a second slide bar (315) with a T-shaped cross section. The base (21) is provided with a second slide groove (316) that matches the size of the second slide bar (315). The second slide bar (315) and the second slide groove (316) are used to limit the movable seat (33) to ensure the stability of the movable seat (33).

4. The bearing clamping fixture as described in claim 1, characterized in that: Two T-shaped sliders (311) are fixedly connected to the side of each of the two clamping plates (32) near the movable plate (31). The movable plate (31) has a horizontally arranged movable groove (312) that matches the slider (311). The slider (311) and the movable groove (312) are used to keep the clamping plate (32) stable when it moves horizontally.

5. The bearing clamping fixture as described in claim 1, characterized in that: An electric push rod (22) is fixedly connected to the mounting plate (2). The fixed end of the electric push rod (22) is fixedly connected to the mounting plate (2), and the extended end of the electric push rod (22) is fixedly connected to the movable plate (31). The electric push rod (22) is used to drive the movable plate (31) and the two clamping plates (32) to move when it extends and retracts in order to adjust the horizontal distance between the workpiece and the processing assembly. The two clamping plates (32) are each fixedly connected with a first slide bar (313) with a T-shaped cross section. The two movable seats (33) are each fixedly connected with a first slide groove (314) that is adapted to the two first slide bars (313). The first slide bars (313) and the first slide groove (314) are used to ensure the relative stability of the clamping plate (32) and the workpiece when the electric push rod (22) pushes the clamping plate (32) and the workpiece to move, so as to ensure the processing accuracy.

6. The bearing clamping fixture as described in claim 1, characterized in that: The clamping plate (32) has a striped texture (321) arranged at intervals along the axial direction on one side for clamping the workpiece. The striped texture (321) has a width of 1-3 mm, a depth of 0.1-0.3 mm, and a stripe spacing of 5-8 mm. The striped texture (321) enhances the clamping force by increasing the roughness of the contact surface, preventing the workpiece from shifting during processing or movement.

7. The bearing clamping fixture as described in claim 2, characterized in that: The sliding contact surfaces of the movable seat (33) and the base (21) are designed with a clearance fit, and the clearance range is 0.05-0.15mm. When the motor (34) drives the movable seat (33) to move the clamping plate (32), the movable seat (33) compensates for the stress concentration caused by the workpiece size deviation through a small amount of sliding within the gap, thus avoiding workpiece damage or clamping failure caused by sudden changes in clamping force.

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