Integrated mechanical spindle box structure

Abstract

The utility model provides an integrated mechanical spindle box structure which comprises a spindle box body and a synchronous belt transmission device arranged at one end of the spindle box body, a through hole with two through ends is formed in the spindle box body, and a front bearing chamber and a rear bearing chamber which are used for installing bearings are formed at the two ends of the through hole respectively. The bearing span is large, the bearing fit tolerance is small, vibration is small, the heat dissipation effect is better, the spindle box body appearance structure with the triangular cross section is adopted, and the stability is better; the low-gravity-center design is higher in shock resistance and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, and particularly relates to an integrated mechanical spindle box structure. Background Art

[0002] A lathe is a machine tool mainly used for turning a rotating workpiece with a turning tool. The lathe spindle refers to the shaft on the machine tool that drives the workpiece or the tool to rotate, and usually includes a spindle box and components such as transmission parts (gears or belt pulleys) to form a structure.

[0003] The common spindle installation method in the existing mechanical spindle boxes on the market is as follows: A sleeve is installed in the spindle box, and the spindle is fixedly installed in the inner cavity of the sleeve in a clearance fit + screw fixation manner. The main defects of this spindle installation method are as follows: large vibration, slow heat dissipation, and small support span. Summary of the Invention

[0004] Aiming at the defects existing in the prior art, the purpose of the utility model is to provide an integrated mechanical spindle box structure to solve the problems of large vibration, slow heat dissipation, and small support span existing in the spindle of the existing mechanical spindle box due to the installation method using a sleeve.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] The present application provides an integrated mechanical spindle box structure, which includes a spindle box body and a synchronous belt transmission device arranged at one end of the spindle box body. The spindle box body is formed with a through hole that penetrates both ends, and front bearing chambers and rear bearing chambers for installing bearings are respectively formed at both ends of the through hole.

[0007] In a possible implementation manner, the spindle box body adopts a triangular outer shape structure with a narrow upper part and a wide lower part in cross-section.

[0008] In a possible implementation manner, the spindle box body is integrally formed by a casting process.

[0009] In a possible implementation manner, the synchronous belt transmission device includes a synchronous belt pulley and a synchronous belt. The synchronous belt pulley is installed at one end of the spindle box body, the synchronous belt is installed on the synchronous belt pulley, and a plurality of sound-absorbing holes are arranged at intervals along the length direction of the synchronous belt.

[0010] In a possible implementation manner, the sound-absorbing holes adopt a long strip-shaped waist-shaped hole structure.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. The bearing span is large, the bearing fit tolerance is small, the vibration is small, and the heat dissipation effect is better;

[0013] 2. The spindle box body has an outer shape structure with a triangular cross-section, which has better stability;

[0014] 3. The low center of gravity design provides higher seismic resistance and is convenient for installation and maintenance;

[0015] 4. The large bearing span improves the turning rigidity of the spindle;

[0016] 5. The synchronous belt with sound-absorbing holes can effectively reduce the noise generated during the use of the synchronous belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic three-dimensional structure diagram of the integrated mechanical spindle box structure of the embodiment of the present application.

[0018] Figure 2 It is a schematic three-dimensional structure diagram of the spindle box body in the embodiment of the present application.

[0019] Figure 3 It is a schematic front view structure diagram of the spindle box body in the embodiment of the present application.

[0020] Figure 4 It is a schematic three-dimensional structure diagram of the synchronous belt in the embodiment of the present application.

[0021] In the figure:

[0022] 100 - Integrated mechanical spindle box structure, 1 - Spindle box body, 11 - Through hole, 2 - Synchronous belt drive device, 21 - Synchronous belt pulley, 22 - Synchronous belt, 23 - Sound-absorbing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the present invention in detail in conjunction with the accompanying drawings of the specification and the specific embodiments.

[0024] See attached Figure 1 to attached Figure 2 As shown, this embodiment provides an integrated mechanical spindle box structure 100, which includes a spindle box body 1 and a synchronous belt drive device 2 provided at one end of the spindle box body 1.

[0025] In this embodiment, a through hole 11 horizontally penetrating the left and right ends of the spindle box body 1 is formed on the spindle box body 1, and a front bearing chamber and a rear bearing chamber for installing bearings are respectively formed at the left and right ends of the through hole 11. In this way, when the spindle is installed in the spindle box body 1, both ends of the spindle can be supported by bearings installed in the front bearing chamber and the rear bearing chamber. In this way, by installing bearings at both ends of the spindle, the bearing span is large, and the turning rigidity of the spindle is improved.

[0026] Refer to the attached Figure 2 and the attached Figure 3 As shown, the main spindle box body 1 adopts a triangular outer shape structure with a narrower upper part and a wider lower part in cross-section. By adopting the outer shape structure of the main spindle box body 1 with a triangular cross-section, its stability is better; and it is designed with a low center of gravity, higher seismic resistance, and is convenient for installation and maintenance.

[0027] In addition, in order to improve the heat dissipation effect of the entire integrated mechanical main spindle box structure, the main spindle box body 1 is integrally formed by casting process. In this way, the heat dissipation effect of the main spindle box body 1 will be better and the accuracy is more guaranteed.

[0028] Refer to the attached Figure 1 and the attached Figure 4 As shown, the synchronous belt drive device 2 in this embodiment includes a synchronous belt pulley 21 and a synchronous belt 22. The synchronous belt pulley 21 is installed at one end of the main spindle box body, the synchronous belt 22 is installed on the synchronous belt pulley 21, and a plurality of sound-absorbing holes 23 are arranged at intervals along the length direction of the synchronous belt 22. Specifically, the sound-absorbing holes 23 adopt a long strip-shaped waist-shaped hole structure. The setting of the sound-absorbing holes 23 can effectively reduce the noise during the use of the synchronous belt 22, and the operation is stable with small vibration.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. An integrated mechanical spindle box structure, characterized in that: The mechanical spindle box structure includes a spindle box body and a synchronous belt transmission device arranged at one end of the spindle box body. The spindle box body is formed with a through hole with two ends passing through, and the two ends of the through hole are respectively formed with a front bearing chamber and a rear bearing chamber for installing bearings.

2. The integrated mechanical spindle box structure according to claim 1, characterized in that: The main spindle box body adopts a triangular shape structure with a cross section that is narrow at the top and wide at the bottom.

3. An integrated mechanical spindle box structure according to claim 1 or 2, characterized in that: The main spindle box body is made by integrally forming through a casting process.

4. The integrated mechanical spindle box structure according to claim 1, characterized in that: The synchronous belt transmission device includes a synchronous pulley and a synchronous belt. The synchronous pulley is installed at one end of the spindle box body, and the synchronous belt is installed on the synchronous pulley. The synchronous belt is provided with a plurality of silencer holes at intervals along its length direction.

5. The integrated mechanical spindle box structure according to claim 4 is characterized in that: The muffler hole adopts a long waist-shaped hole structure.

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