Boring bar deflection compensation device for large floor type boring and milling machine

Abstract

The utility model relates to a boring bar deflection compensation device for a large floor type boring and milling machine, and belongs to the technical field of machining. Comprising a supporting seat (1), a rolling bearing (2), a self-made pin shaft (3) and an automatic oiling cup (4), the supporting seat (1) is of an integrated structure, a base is arranged at the left end of the supporting seat (1), a bearing containing groove is formed in the right end of the supporting seat, pin shaft holes are formed in the upper side and the lower side of the bearing containing groove, and the base and the bearing containing groove are connected through cross beams on the upper side and the lower side. The machining precision of the long-size inner hole is improved, and the machining range of a large floor type boring and milling machine is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to a device for compensating the deflection of a boring bar of a large floor-standing boring and milling machine. Background Art

[0002] Floor-type boring and milling machines are a type of large-scale equipment commonly used in the machining industry, and are mainly used for boring holes in large and medium-sized parts. When machining some long internal holes, machining can only be performed from one end. Due to the influence of gravity, there are problems such as vibration and bending deformation of the boring bar during machining, which will cause the protruding part to bend downward, which will cause the eccentricity of the deep hole being machined, affecting the machining quality of the workpiece, and further affecting the overall accuracy of the machine tool. When machining axially long internal holes, the double-sided machining method cannot be used. When machining from one end, the boring bar extends too long, and due to the influence of gravity, the boring bar bends downward, resulting in a decrease in machining accuracy. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The technical problem to be solved by the utility model is to provide a device for compensating the deflection of a boring bar of a large floor-standing boring and milling machine, which is used to solve the bending deformation problem of the overhanging boring bar of the large floor-standing boring and milling machine under the influence of gravity.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the utility model provides a device for compensating the deflection of a boring bar of a large floor-standing boring and milling machine, comprising: a support seat 1, a rolling bearing 2, a self-made pin 3, and an automatic oiling cup 4;

[0007] The support seat 1 is an integrated structure, the left end of the support seat 1 is set as a base, the right end of the support seat is provided with a bearing placement groove, the upper and lower sides of the bearing placement groove are provided with pin shaft holes, and the base and the bearing placement groove are connected by upper and lower side beams;

[0008] The base, the bearing placement groove and the right end surface of the support seat 1 are respectively provided with a center hole, and the three center holes are coaxially arranged;

[0009] The rolling bearing 2 is arranged on the bearing placement groove of the support seat 1;

[0010] The self-made pins 3 are provided with two, which are respectively inserted into the bearing placement groove and provided with pin holes on the upper and lower sides, for fixing the rolling bearing 2 to prevent the rolling bearing from moving during operation;

[0011] The automatic oiling cup 4 is fixed on the upper right side of the support seat 1 and is used to lubricate the rolling bearing 2.

[0012] The coaxiality between the base of the support seat 1 and the center hole of the bearing placement groove is ≤0.005.

[0013] The coaxiality between the bearing placement groove and the center hole of the right end surface of the support seat is ≤0.005.

[0014] The verticality of the base of the support seat 1 is ≤0.005;

[0015] The four corners of the base are provided with mounting buckles for fixing the support base 1 on a boring and milling machine. The position size and the outer size of the mounting buckles are determined according to the interface size of different boring and milling machines.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model has the following beneficial effects: the installation structure is simple and reasonable, the use is convenient and quick, the processing accuracy of long-sized inner holes is improved, and the processing range of large-scale floor-standing boring and milling machines is expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, content, and advantages of the utility model clearer, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments.

[0020] Example 1

[0021] The present embodiment is a device for compensating the deflection of a boring bar of a large floor-standing boring and milling machine, comprising: a support seat 1, a rolling bearing 2, a self-made pin 3, and an automatic oiling cup 4;

[0022] The support seat 1 is an integrated structure, the left end of the support seat 1 is set as a base, the right end of the support seat is provided with a bearing placement groove, the upper and lower sides of the bearing placement groove are provided with pin shaft holes, and the base and the bearing placement groove are connected by upper and lower side beams;

[0023] The base, the bearing placement groove and the right end surface of the support seat 1 are respectively provided with a center hole, and the three center holes are coaxially arranged;

[0024] The rolling bearing 2 is arranged on the bearing placement groove of the support seat 1;

[0025] The self-made pins 3 are provided with two, which are respectively inserted into the bearing placement groove and provided with pin holes on the upper and lower sides, for fixing the rolling bearing 2 to prevent the rolling bearing from moving during operation;

[0026] The automatic oiling cup 4 is fixed on the upper right side of the support seat 1 and is used to lubricate the rolling bearing 2.

[0027] The coaxiality between the base of the support seat 1 and the center hole of the bearing placement groove is ≤0.005.

[0028] The coaxiality between the bearing placement groove and the center hole of the right end surface of the support seat is ≤0.005.

[0029] The verticality of the base of the support seat 1 is ≤0.005;

[0030] The four corners of the base are provided with mounting buckles for fixing the support base 1 on a boring and milling machine. The position size and the outer size of the mounting buckles are determined according to the interface size of different boring and milling machines.

[0031] The working process is as follows:

[0032] The support device is installed at a fixed position on the floor-type boring and milling machine. The boring bar extends out of the rolling bearing 2 and cooperates with the rolling bearing. The automatic oiling cup is opened. When the boring bar rotates, the rolling bearing rotates together. The device provides support for the boring bar with an overhang, compensates for the downward deflection of the boring bar, ensures the processing stability of the boring bar, and thus improves the processing accuracy of the floor-type boring and milling machine.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A device for compensating the deflection of a boring bar of a large floor-standing boring and milling machine, characterized in that: include: Support seat (1), rolling bearing (2), self-made pin (3), automatic oiling cup (4); The support seat (1) is an integrated structure, the left end of the support seat (1) is arranged as a base, the right end of the support seat is provided with a bearing placement groove, the upper and lower sides of the bearing placement groove are provided with pin holes, and the base and the bearing placement groove are connected by upper and lower cross beams; The base, the bearing placement groove and the right end surface of the support seat (1) are respectively provided with a center hole, and the three center holes are coaxially arranged; The rolling bearing (2) is arranged on the bearing placement groove of the support seat (1); The self-made pins (3) are provided with two, which are respectively inserted into the bearing placement groove and have pin holes on the upper and lower sides, and are used to fix the rolling bearing (2) to prevent the rolling bearing from moving during operation; The automatic oiling cup (4) is fixed on the upper right side of the support seat (1) and is used to lubricate the rolling bearing (2).

2. The device for compensating the deflection of the boring bar of a large floor-standing boring and milling machine as claimed in claim 1, characterized in that: The coaxiality between the base of the support seat (1) and the center hole of the bearing placement groove is ≤0.

005.

3. The device for compensating the deflection of the boring bar of a large floor-standing boring and milling machine as claimed in claim 1, characterized in that: The coaxiality between the bearing placement groove and the center hole of the right end surface of the support seat is ≤0.

005.

4. The device for compensating the deflection of the boring bar of a large floor-standing boring and milling machine as claimed in claim 1, characterized in that: The verticality of the base of the support seat (1) is ≤0.005; The four corners of the base are provided with mounting buckles for fixing the support seat (1) on a boring and milling machine. The position size and the outer size of the mounting buckles are determined according to the interface size of different boring and milling machines.

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