Centre shaft with mechanical band-type brake

Abstract

The utility model relates to the technical field of center shafts, and discloses a center shaft with a mechanical band-type brake, which comprises a center shaft, a center shaft sleeve is arranged at the left end of the center shaft, a band-type brake mechanism is arranged at the right end of the surface of the center shaft sleeve, an installation mechanism is arranged at the left end of the center shaft sleeve, and an insertion port is arranged at the left end of the center shaft. A center shaft mounting groove is formed in the right end of the center shaft sleeve, an inserting column is arranged at the left end of the interior of the center shaft mounting groove, a shaft sleeve fixing seat is fixedly connected to the left end of the center shaft sleeve, and the center shaft sleeve is inserted into the fixing opening through the shaft sleeve fixing seat for fixing; according to the center shaft, quick replacement can be achieved only by rotating the threaded connecting block out of the base, meanwhile, the mechanism is provided with a spring and a fixing ring, fixing of the device can be efficiently achieved through the spring and the fixing ring, quick disassembly, assembly and maintenance can be achieved through the mechanism, and the working efficiency of the center shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of top shafts, in particular to a top shaft with a mechanical brake. Background Art

[0002] The top spindle is a part that is installed in front of the rotating top to directly clamp the workpiece. In the shaft processing technology, the top plays a very important role in ensuring the correct position and direction of the workpiece during the processing. This helps to maintain the processing accuracy and reduce the processing error, so that it can accurately cut the workpiece. This helps to maintain the stability and rigidity of the tool and ensure the accuracy and precision of the cutting process.

[0003] According to a top spindle with a mechanical brake disclosed on the patent website (authorization announcement number: CN220515433U), "This utility model relates to the field of mechanical technology, specifically a top spindle with a mechanical brake, including a spindle, an outer sleeve, a bearing assembly, a positioning pin, an inner sleeve, a clamping spring, a locking nut, a brake assembly, and a tailstock. The outer sleeve is sleeved outside the inner sleeve, and a clamping spring is provided between the outer sleeve and the inner sleeve. The inner sleeve is sleeved outside the spindle, and the end of the spindle is exposed from the end surface of the inner sleeve. The spindle A bearing assembly is installed between the outer side of the middle part of the shaft and the inner wall of the inner sleeve, and a locking nut and a brake assembly are installed on the outer side of the other end of the main shaft. The outer sleeve of the locking nut and the brake assembly is provided with a tailstock. Compared with the prior art, the utility model solves the problems of multi-station switching and rack positioning angle rotation, ensures the continuity of multi-station processing, and ensures the efficiency of rack processing; the clamping force can be adjusted to avoid deformation during rack processing and ensure the quality of rack processing; it can rotate at any angle according to the rack processing requirements to be compatible with racks of different models. "

[0004] Based on the above, the applicant believes that there are the following defects:

[0005] The top shaft with built-in mechanical brake includes a main shaft, an outer sleeve, a bearing assembly, a locating pin, an inner sleeve, a clamping spring, a locking nut, a brake assembly, and a tailstock. The outer sleeve is sleeved outside the inner sleeve. The top shaft is relatively troublesome to install on the device, and no corresponding installation assembly is provided. When maintenance is required, efficient disassembly and assembly cannot be achieved. Utility Model Content

[0006] The utility model aims to provide a top shaft with a built-in mechanical brake to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a top shaft with a mechanical brake, comprising a top shaft, a top shaft sleeve is arranged at the left end of the top shaft, a brake mechanism is arranged at the right end of the top shaft sleeve surface, and a mounting mechanism is arranged at the left end of the top shaft sleeve;

[0008] The mounting mechanism includes a fixing seat, which is arranged at the left end of the top shaft sleeve, a fixing groove is provided inside the fixing seat, a fixing port is fixedly connected to the left end of the fixing groove, a threaded connection block is fixedly connected to the left end of the fixing seat, a base is provided at the left end of the fixing seat, an internal thread is provided inside the base, a mounting seat is fixedly connected to the left end of the base, a mounting port is provided inside the mounting seat, a spring is fixedly connected to the mounting port, a fixing ring is fixedly connected to the surface of the spring, and the fixing seat is plugged into the fixing port for fixing through the sleeve fixing seat. When the top shaft and the top shaft sleeve need to be disassembled and replaced, the threaded connection block only needs to be turned out from the inside of the base to achieve quick replacement. At the same time, the mechanism is provided with a spring and a fixing ring. The setting of the spring and the fixing ring can efficiently achieve the fixation of the device. The setting of the mechanism can achieve quick disassembly and maintenance, thereby improving the working efficiency of the top shaft.

[0009] Preferably, the fixing seat and the base are connected together via a threaded connection block and an internal thread, and the threaded connection block is threadedly connected to the inside of the base via an internal thread.

[0010] Preferably, the spring and the fixing ring are provided in two groups, and the fixing opening is provided at the center of the left end inside the fixing groove.

[0011] Preferably, the brake mechanism includes a brake device body, which is arranged at the right end of the surface of the top shaft sleeve, a micro motor is fixedly connected to the left end of the brake device body, and a rotating seat is fixedly connected to the top and bottom of the right end of the brake device body, a linkage arm is rotatably connected to the right side of the rotating seat, and a friction ring is fixedly connected to the end of the linkage arm away from the rotating seat, and an electromagnet is fixedly connected inside the friction ring. When the device needs to switch workstations, the brake device body and the electromagnet can be started by the micro motor to drive the linkage arm to move, and the friction ring is pressed against the surface of the top shaft, and the top shaft is stopped by friction force, which facilitates workstation switching and ensures the continuity of multi-station processing.

[0012] Preferably, a plug interface is provided at the left end of the top shaft, a top shaft mounting groove is provided at the right end of the top shaft sleeve, a plug-in column is provided at the left end inside the top shaft mounting groove, and a sleeve fixing seat is fixedly connected to the left end of the top shaft sleeve.

[0013] Compared with the prior art, the utility model provides a top shaft with a built-in mechanical brake, which has the following beneficial effects:

[0014] 1. The top shaft with its own mechanical brake is provided with an installation mechanism, which is fixed by inserting the sleeve fixing seat into the fixing port. When the top shaft and the top shaft sleeve need to be disassembled and replaced, it is only necessary to turn the threaded connection block out from the inside of the base to achieve rapid replacement. At the same time, the mechanism is provided with a spring and a fixing ring. The setting of the spring and the fixing ring can efficiently achieve the fixation of the device. The setting of the mechanism can achieve rapid disassembly and maintenance, thereby improving the working efficiency of the top shaft.

[0015] 2. The top spindle with its own mechanical brake is provided with a brake mechanism. When the device needs to switch positions, the brake device body and the electromagnet can be started by a micro motor to drive the linkage arm to move, and the friction ring is pressed against the surface of the top spindle. The top spindle is stopped by friction force, which facilitates position switching and ensures the continuity of multi-position processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of a separated view of the structural installation mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the bottom of the structural installation mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation groove of the top shaft of the utility model structure;

[0021] Figure 5 This is a schematic diagram of the brake mechanism of the utility model structure.

[0022] In the figure: 1. top shaft; 11. plug interface; 2. top shaft sleeve; 21. sleeve fixing seat; 3. brake mechanism; 31. brake device body; 32. micro motor; 33. rotating seat; 34. linkage arm; 35. friction ring; 36. electromagnet; 4. mounting mechanism; 41. fixing seat; 42. fixing groove; 43. fixing port; 44. threaded connection block; 45. base; 46. internal thread; 47. mounting seat; 48. mounting port; 49. spring; 401. fixing ring; 5. top shaft mounting groove; 51. plug-in column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides the following technical solutions:

[0026] Embodiment 1

[0027] See also Figure 1-3 A top shaft with a built-in mechanical brake comprises a top shaft 1, a top shaft sleeve 2 is arranged at the left end of the top shaft 1, a brake mechanism 3 is arranged at the right end of the surface of the top shaft sleeve 2, and a mounting mechanism 4 is arranged at the left end of the top shaft sleeve 2;

[0028] The mounting mechanism 4 includes a fixing seat 41, which is arranged at the left end of the top shaft sleeve 2, and a fixing groove 42 is provided inside the fixing seat 41, and a fixing port 43 is fixedly connected to the left end of the fixing groove 42, and a threaded connection block 44 is fixedly connected to the left end of the fixing seat 41, and a base 45 is provided at the left end of the fixing seat 41, and an internal thread 46 is provided inside the base 45, and a mounting seat 47 is fixedly connected to the left end of the base 45, and a mounting port 48 is provided inside the mounting seat 47, and a spring 49 is fixedly connected inside the mounting port 48, and the surface of the spring 49 A fixing ring 401 is fixedly connected, and the sleeve fixing seat 21 is inserted into the fixing port 43 for fixing. When the top shaft 1 and the top shaft sleeve 2 need to be disassembled and replaced, it is only necessary to turn the threaded connection block 44 out of the base 45 to achieve rapid replacement. At the same time, the mechanism is provided with a spring 49 and a fixing ring 401. The arrangement of the spring 49 and the fixing ring 401 can efficiently achieve the fixation of the device. The arrangement of the mechanism can achieve rapid disassembly and maintenance, thereby improving the working efficiency of the top shaft 1.

[0029] The fixing seat 41 and the base 45 are connected together through a threaded connection block 44 and an internal thread 46 , and the threaded connection block 44 is threadedly connected to the inside of the base 45 through the internal thread 46 ;

[0030] Two sets of springs 49 and fixing rings 401 are provided, and the fixing opening 43 is provided at the center of the left end of the fixing groove 42 .

[0031] Embodiment 2

[0032] See also Figure 1-5 , and on the basis of the first embodiment, the brake mechanism 3 further comprises a brake device body 31, the brake device body 31 is arranged at the right end of the surface of the top shaft sleeve 2, the left end of the brake device body 31 is fixedly connected to a micro motor 32, the top and bottom of the right end of the brake device body 31 are fixedly connected to a rotating seat 33, the right side of the rotating seat 33 is rotatably connected to a linkage arm 34, the end of the linkage arm 34 away from the rotating seat 33 is fixedly connected to a friction ring 35, and the friction ring 35 is fixedly connected to an electromagnet 36. When the device needs to switch the workstation, the brake device body 31 and the electromagnet 36 can be started by the micro motor 32 to drive the linkage arm 34 to move, and the friction ring 35 is pressed against the surface of the top shaft 1. The top shaft 1 is stopped by friction, which is convenient for switching the workstation and ensuring the continuity of multi-workstation processing;

[0033] The left end of the top shaft 1 is provided with an insertion port 11 , the right end of the top shaft sleeve 2 is provided with a top shaft installation groove 5 , the left end of the top shaft installation groove 5 is provided with a plug-in column 51 , and the left end of the top shaft sleeve 2 is fixedly connected with a sleeve fixing seat 21 .

[0034] In actual operation, when the device is used, the top shaft 1 is inserted into the top shaft installation groove 5, and the top shaft 1 is fixed in the top shaft installation groove 5 through the plug interface 11 and the plug column 51, thereby completing the installation of the top shaft 1 and the top shaft sleeve 2, and then the top shaft sleeve 2 is installed in the fixing seat 41, and fixed through the sleeve fixing seat 21 and the fixing port 43. When the device needs to switch the workstation, the brake device body 31 and the electromagnet 36 can be started by the micro motor 32 to drive the linkage arm 34 to move, so that the friction ring 35 is pressed against the friction ring 35. On the surface of the top shaft 1, the top shaft 1 is stopped by friction, which facilitates the station switching and ensures the continuity of multi-station processing. When the top shaft 1 and the top shaft sleeve 2 need to be disassembled and replaced, it is only necessary to turn the threaded connection block 44 out from the inside of the base 45 to achieve rapid replacement. At the same time, the mechanism is provided with a spring 49 and a fixing ring 401. The setting of the spring 49 and the fixing ring 401 can efficiently achieve the fixation of the device. The setting of the mechanism can achieve rapid disassembly and maintenance, thereby improving the working efficiency of the top shaft 1.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A top spindle with a built-in mechanical brake, comprising a top spindle (1), characterized in that: The left end of the top shaft (1) is provided with a top shaft sleeve (2), the right end of the surface of the top shaft sleeve (2) is provided with a brake mechanism (3), and the left end of the top shaft sleeve (2) is provided with a mounting mechanism (4); The mounting mechanism (4) comprises a fixing seat (41), the fixing seat (41) being arranged at the left end of the top shaft sleeve (2), the fixing seat (41) being provided with a fixing groove (42) inside, the fixing groove (42) being fixedly connected with a fixing opening (43) at the left end inside, the fixing seat (41) being fixedly connected with a threaded connection block (44) at the left end, the fixing seat (41) being provided with a base (45) at the left end, the base (45) being provided with an internal thread (46), the base (45) being fixedly connected with a mounting seat (47) at the left end, the mounting seat (47) being provided with a mounting opening (48), the mounting opening (48) being fixedly connected with a spring (49), and the surface of the spring (49) being fixedly connected with a fixing ring (401).

2. The top shaft with a built-in mechanical brake according to claim 1, characterized in that: The fixing seat (41) and the base (45) are connected together via a threaded connection block (44) and an internal thread (46); the threaded connection block (44) is threadedly connected to the inside of the base (45) via the internal thread (46).

3. The top shaft with a built-in mechanical brake according to claim 1, characterized in that: The spring (49) and the fixing ring (401) are provided in two groups, and the fixing opening (43) is provided at the center of the left end inside the fixing groove (42).

4. The top spindle with a built-in mechanical brake according to claim 1, characterized in that: The brake mechanism (3) comprises a brake device body (31), the brake device body (31) is arranged at the right end of the surface of the top shaft sleeve (2), the left end of the brake device body (31) is fixedly connected to a micro motor (32), the top and bottom of the right end of the brake device body (31) are fixedly connected to a rotating seat (33), the right side of the rotating seat (33) is rotatably connected to a linkage arm (34), the end of the linkage arm (34) away from the rotating seat (33) is fixedly connected to a friction ring (35), and the friction ring (35) is fixedly connected to an electromagnet (36) inside.

5. The top spindle with a built-in mechanical brake according to claim 1, characterized in that: The left end of the top shaft (1) is provided with an insertion interface (11), and the right end of the top shaft sleeve (2) is provided with a top A tip shaft installation groove (5), wherein a plug-in column (51) is provided at the left end inside the tip shaft installation groove (5). The left end of the top shaft sleeve (2) is fixedly connected to a shaft sleeve fixing seat (21).

Images