Rotary workpiece alignment device

Abstract

The utility model relates to a rotary workpiece alignment device. The device comprises a support body, the clamping sleeve is mounted on the supporting body; the ejector rod is axially and telescopically connected into the clamping sleeve; the driving assembly is used for driving the ejector rod to stretch out and draw back along the clamping sleeve; the bearing mounting seat is mounted at the end part of the ejector rod, a rolling bearing is mounted on the bearing mounting seat, and an inner ring of the rolling bearing is connected to the bearing mounting seat; wherein the outer ring of the rolling bearing can abut against the outer circle of the workpiece, and the axis of the rolling bearing is parallel to the rotating shaft of the workpiece during abutting, so that the rolling bearing rolls along with the rotating motion of the workpiece. The outer ring of the rolling bearing is in rolling contact with the outer circle of the to-be-calibrated workpiece, and the ejector rod generates thrust through the driving assembly to push the workpiece to perform circle calibration, so that the workpiece is uniformly stressed, and the surface of the workpiece is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of processing devices, in particular to a rotary workpiece alignment device. Background Art

[0002] At present, the parts processed by large vertical lathes and vertical mills are often large and heavy. Before processing, the processed parts need to be rounded on the machine tool to ensure that the rotation center of the processed part is concentric with the rotation center of the machine tool worktable, so that qualified products can be processed. The traditional method uses manual "bell-beating" hammering to move the workpiece on the worktable until it is concentric.

[0003] The disadvantage of this structure is that as the diameter and weight of the processed parts increase, some weighing 30-40 tons, it is difficult to move the parts by traditional manual "bell-knocking" hammering, the labor efficiency is low, and it is easy to damage the surface of the parts. At the same time, it does not meet the requirements of modern production. Summary of the invention

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that when aligning the rotation center of the processed part, the method of manual hammering leads to low efficiency and easy damage to the surface of the part.

[0005] In order to solve the above technical problems, the utility model provides a rotary workpiece alignment device, comprising:

[0006] Support body;

[0007] A clamping sleeve, mounted on the support body;

[0008] A push rod, axially telescopically connected in the clamping sleeve;

[0009] A driving assembly, used for driving the push rod to extend and retract along the clamping sleeve;

[0010] A bearing mounting seat, which is mounted on the end of the push rod, a rolling bearing is mounted on the bearing mounting seat, and the inner ring of the rolling bearing is connected to the bearing mounting seat;

[0011] The outer ring of the rolling bearing can abut against the outer circle of the workpiece, and when abutting against each other, the axis of the rolling bearing is parallel to the rotation axis of the workpiece so as to roll along with the rotation of the workpiece.

[0012] In one embodiment of the utility model, the support body includes a mounting base and a fixing base mounted on the mounting base, the fixing base is provided with a mounting hole for the clamping sleeve to extend into, and the fixing base is provided with a clamping screw connected to the clamping sleeve.

[0013] In one embodiment of the utility model, the drive assembly includes a screw, a nut and an end bearing seat installed on the clamping sleeve, one end of the screw is connected to an end of the push rod away from the bearing mounting seat through the nut, and the other end of the screw is rotatably connected to the end bearing seat.

[0014] In one implementation of the utility model, a handle is installed at the other end of the screw rod.

[0015] In one embodiment of the present invention, the screw rod is a T-shaped screw rod, and the nut is a T-shaped nut matched with the screw rod thread.

[0016] In one embodiment of the utility model, a guide groove is axially provided on the outer circle of the push rod, and the clamping sleeve is provided with a guide key which is slidably matched with the guide groove.

[0017] In one implementation of the utility model, a pin passing through the inner ring of the rolling bearing is installed in the mounting groove of the bearing mounting seat.

[0018] In one implementation of the utility model, adjustment gaskets are provided between the two end surfaces of the inner ring of the rolling bearing and the mounting grooves of the bearing mounting seat respectively.

[0019] The above technical solution of the utility model has the following advantages compared with the prior art:

[0020] The utility model discloses a rotary workpiece alignment device, which rolls with the outer ring of the rolling bearing and the outer circle of the calibration workpiece, and drives the push rod to generate thrust to push the workpiece for calibration, so that the workpiece is evenly stressed and the surface of the workpiece is avoided from being damaged. The device has the characteristics of simple structure, reliability, low processing and manufacturing cost, stable performance, convenient operation, etc., which greatly reduces the labor intensity and adjustment time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the main structure of the rotary workpiece alignment device of the utility model.

[0023] Figure 2 is along Figure 1 Schematic cross-sectional view along the AA direction.

[0024] Figure 3 The utility model is a top view of the structure of the rotary workpiece alignment device.

[0025] Description of the Figures in the Specification:

[0026] 100. Workpiece;

[0027] 1. Support body; 11. Mounting base; 12. Fixed base;

[0028] 2. Clamping sleeve; 21. Guide key;

[0029] 3. ejector rod; 31. guide groove;

[0030] 4. driving assembly; 41. screw rod; 42. nut; 43. end bearing seat; 44. handle;

[0031] 5. Bearing mounting seat;

[0032] 6. Rolling bearing; 61. Pin; 62. Adjusting shim. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0034] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0035] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0037] Reference Figures 1 to 3 As shown, a rotary workpiece alignment device of the utility model comprises:

[0038] Support body 1;

[0039] A clamping sleeve 2 is installed on the support body 1;

[0040] A push rod 3 is axially telescopically connected in the clamping sleeve 2;

[0041] A driving assembly 4, used for driving the push rod 3 to extend and retract along the clamping sleeve 2;

[0042] A bearing mounting seat 5 is mounted on the end of the push rod 3, a rolling bearing 6 is mounted on the bearing mounting seat 5, and the inner ring of the rolling bearing 6 is connected to the bearing mounting seat 6;

[0043] The outer ring of the rolling bearing 6 can abut against the outer circle of the workpiece 100 , and when abutting against each other, the axis of the rolling bearing 6 is parallel to the rotation axis of the workpiece 100 so as to roll along with the rotation of the workpiece 100 .

[0044] It can be understood that the outer ring of the rolling bearing 6 is in a free raceway state. When the outer ring of the rolling bearing 6 on the push rod 3 contacts the outer circle of the workpiece 100 to be calibrated, as the workpiece 100 rotates on the workbench, the outer ring of the rolling bearing 6 can rotate with it under the action of friction, thereby avoiding damage to the surface of the workpiece 100. When the gap between the outer circle of the workpiece 100 and the outer ring of the rolling bearing 6 remains consistent within one circle, it indicates that the workpiece 100 is concentric with the workbench.

[0045] In one embodiment, the support body 1 includes a mounting base 11 installed on a foundation close to the workbench and a fixing base 12 installed on the mounting base 11, the fixing base 12 is provided with a mounting hole for the clamping sleeve 2 to extend into, and the fixing base 12 is installed with a clamping screw connected to the clamping sleeve 2.

[0046] In one embodiment, the driving assembly 4 includes a screw 41, a nut 42, and an end bearing seat 43 installed on the clamping sleeve 2, one end of the screw 41 is connected to an end of the push rod 3 away from the bearing mounting seat 5 through the nut 42, and the other end of the screw 41 is rotatably connected to the end bearing seat 43.

[0047] Specifically, a handle 44 is installed at the other end of the screw rod 41 (at the gland of the end face bearing seat 43 ); the screw rod 41 is a T-shaped screw rod, and the nut 42 is a T-shaped nut threadably matched with the screw rod 41 .

[0048] A large thrust can be generated through the T-screw and T-nut to push the push rod forward and backward.

[0049] In one embodiment, the outer circle of the push rod 3 is axially provided with a guide groove 31, and the clamping sleeve 2 is provided with a guide key 21 that slides with the guide groove 31. The push rod 3 can move axially forward and backward linearly under the limiting action of the guide key 21 in the clamping sleeve 2.

[0050] In one embodiment, the mounting groove of the bearing mounting seat 5 is installed with a pin 61 passing through the inner ring of the rolling bearing 6. Specifically, adjustment gaskets 62 are respectively arranged between the two end surfaces of the inner ring of the rolling bearing 6 and the mounting groove of the bearing mounting seat 5.

[0051] The principle of the utility model is as follows: the workpiece 100 to be calibrated is hoisted onto the support of the electromagnetic chuck of the machine tool workbench. In addition, there is a certain deviation between the rotation center of the workpiece 100 surface to be processed and the rotation center of the machine tool workbench. Start the workbench to let the part rotate with the workbench, manually rotate the handle 44, move the push rod 3 toward the outer circle of the workpiece 100 support, make the outer diameter of the outer ring of the rolling bearing 6 contact the maximum outer diameter of the workpiece 100, slowly turn the handle 44, and push the workpiece 100 to deviate toward the rotation center through the large thrust generated by the screw 41. Since the workpiece 100 rotates with the workbench, the outer ring of the rolling bearing 6 also rolls with the part under the action of friction and is evenly stressed, so that no support marks will be left on the surface of the workpiece 100, and the surface of the part will be damaged. When the gap between the outer circle of the workpiece 100 and the outer ring of the rolling bearing 6 remains consistent within one circle, it indicates that the workpiece 100 is concentric with the workbench, and at this time, the chuck is magnetic, and the handle 44 is turned to let the push rod 3 withdraw from the working area, and the process of calibrating the workpiece 100 is completed.

[0052] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A rotary workpiece alignment device, characterized in that: include: Support body (1); A clamping sleeve (2) mounted on the support body (1); A push rod (3) is axially telescopically connected inside the clamping sleeve (2); A driving assembly (4) for driving the push rod (3) to extend and retract along the clamping sleeve (2); A bearing mounting seat (5) mounted on the end of the push rod (3), a rolling bearing (6) being mounted on the bearing mounting seat (5), and an inner ring of the rolling bearing (6) being connected to the bearing mounting seat (5); The outer ring of the rolling bearing (6) can abut against the outer circle of the workpiece (100), and when abutting against each other, the axis of the rolling bearing (6) is parallel to the rotation axis of the workpiece (100) so as to roll along with the rotational motion of the workpiece (100).

2. A rotary workpiece alignment device according to claim 1, characterized in that: The support body (1) comprises a mounting base (11) and a fixing base (12) mounted on the mounting base (11); the fixing base (12) is provided with a mounting hole for the clamping sleeve (2) to extend into; and the fixing base (12) is provided with a clamping screw connected to the clamping sleeve (2).

3. A rotary workpiece alignment device according to claim 1, characterized in that: The driving assembly (4) comprises a screw rod (41), a nut (42), and an end face bearing seat (43) mounted on the clamping sleeve (2); one end of the screw rod (41) is connected to an end of the push rod (3) away from the bearing mounting seat (5) through the nut (42); and the other end of the screw rod (41) is rotatably connected to the end face bearing seat (43).

4. A rotary workpiece alignment device according to claim 3, characterized in that: A handle (44) is mounted on the other end of the screw rod (41).

5. The rotary workpiece alignment device according to claim 3, characterized in that: The screw rod (41) is a T-shaped screw rod, and the nut (42) is a T-shaped nut threadably matched with the screw rod (41).

6. The rotary workpiece alignment device according to claim 1, characterized in that: A guide groove (31) is axially formed on the outer circle of the push rod (3), and a guide key (21) is mounted on the clamping sleeve (2) so as to be slidably engaged with the guide groove (31).

7. The rotary workpiece alignment device according to claim 1, characterized in that: A pin shaft (61) passing through the inner ring of the rolling bearing (6) is installed in the installation groove of the bearing installation seat (5).

8. The rotary workpiece alignment device according to claim 1, characterized in that: Adjustment gaskets (62) are provided between the two end surfaces of the inner ring of the rolling bearing (6) and the mounting grooves of the bearing mounting seat (5).

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