A center distance adjustable tool magazine decelerator

Abstract

The utility model provides a kind of centre distance adjustable tool magazine speed reducer.The utility model includes drive motor, box, primary transmission assembly, output gear, and drive motor's power output end is equipped with worm, and box includes primary box, secondary box, and drive motor is installed on primary box, primary transmission assembly is rotatably connected in primary box, and primary transmission assembly includes gear shaft, gear shaft is equipped with worm wheel and transmission gear, and output gear is rotatably connected in secondary box, worm and worm wheel are mutually matched, and transmission gear and output gear are mutually matched;It further includes connecting bolt, and primary box is equipped with mounting hole, connecting bolt passes through mounting hole and is threadedly connected on secondary box, and clearance is left between the inner hole wall of mounting hole and the screw rod of connecting bolt.The speed reducer with the above structure is not prone to transmission abnormal sound, wear aggravation and other problems after installation and operation, and can meet the use requirements of long-term stable operation of automatic processing equipment.

Description

Technical Field

[0001] This utility model relates to speed reducers, and more particularly to a tool magazine speed reducer with adjustable center distance. Background Technology

[0002] In the field of automated machining equipment, the tool magazine reducer, as the core transmission component connecting the drive motor and the tool magazine actuator, directly determines the tool changing accuracy and equipment operation reliability through its transmission stability.

[0003] A typical structure of an existing tool magazine reducer usually includes a drive motor and a housing. The drive motor is fixed to the outer wall of the housing, and a worm gear is installed at the power output end of the drive motor. The housing contains a primary transmission assembly and an output gear. The primary transmission assembly consists of a gear shaft and a worm wheel and a transmission gear fixed coaxially. The power transmission path is as follows: the drive motor drives the worm to rotate, the worm meshes with the worm wheel, and then drives the transmission gear to rotate through the gear shaft. Finally, the transmission gear meshes with the output gear to realize the transmission of power to the output gear side.

[0004] However, traditional tool magazine reducers of this type face significant technical bottlenecks in practical applications. To ensure the stability of the transmission process and avoid impact vibrations or accuracy deviations caused by excessive meshing clearance, extremely high requirements are placed on the transmission backlash between the transmission gear and the output gear. This requirement further translates into stringent standards for the machining and assembly accuracy of components: on the one hand, key machining parameters such as the tooth profile accuracy, tooth direction accuracy, and tooth thickness of the transmission and output gears must be within extremely small tolerance ranges; on the other hand, the machining accuracy requirements for the center distance of the holes inside the housing used to install the gear shaft and the output gear shaft are extremely high, and the parallelism and coaxiality errors of the two shafts must be strictly controlled.

[0005] Under traditional processing and assembly techniques, the aforementioned high-precision requirements are difficult to achieve consistently. This not only significantly increases production costs and extends the production cycle, but also makes it easier for the quality of reducers to vary due to processing or assembly errors. Some products are prone to problems such as abnormal transmission noise and accelerated wear after installation and operation, failing to meet the long-term stable operation requirements of automated processing equipment. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a tool magazine reducer with adjustable center distance and high power transmission stability.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: An adjustable center distance tool magazine reducer includes a drive motor, a housing, a primary transmission assembly, and an output gear. The drive motor's power output end is equipped with a worm gear. The driving force of the drive motor is transmitted to the output gear through the primary transmission assembly. The housing includes a primary housing and a secondary housing. The drive motor is mounted on the primary housing. The primary transmission assembly is rotatably connected to the primary housing. The primary transmission assembly includes a gear shaft, on which a worm gear and a transmission gear are mounted. The output gear is rotatably connected to the secondary housing. The worm gear and the worm gear cooperate with each other, and the transmission gear and the output gear cooperate with each other. The primary housing and the secondary housing are designed as separate units and include connecting bolts. The primary housing has mounting holes, and the connecting bolts pass through the mounting holes and are threaded onto the secondary housing. A gap is left between the inner wall of the mounting hole and the thread of the connecting bolt.

[0008] With the above technical solution, in the actual installation process, the drive motor, worm gear, and primary transmission assembly are first installed in the primary housing, and the output gear is installed in the secondary housing. Then, the primary housing is fitted onto the secondary housing, and the connecting bolts are passed through the mounting holes and initially screwed into the threaded holes of the secondary housing. Since there is a gap between the inner wall of the mounting hole and the thread of the connecting bolt, the center distance between the transmission gear and the output gear can be adjusted by moving the entire primary housing to make the fit between the transmission gear and the output gear tighter. Finally, all the connecting bolts are tightened to complete the installation between the primary and secondary housings. The reducer with the above structure is less prone to problems such as abnormal transmission noise and accelerated wear after installation and operation, and can meet the long-term stable operation requirements of automated processing equipment.

[0009] Preferably, it also includes a positioning pin that passes through the primary housing and the secondary housing.

[0010] With the above technical solution, after the connecting bolts fix the primary and secondary housings, holes are drilled at the corresponding positions of the primary and secondary housings. Then, the positioning pins are driven into the corresponding holes of the primary and secondary housings, which further enhances the connection stability between the primary and secondary housings.

[0011] Preferably, the primary housing is provided with a mounting cover, and a first bearing and a second bearing are mounted on the gear shaft. The first bearing is mounted on the primary housing, and the second bearing is mounted on the mounting cover.

[0012] Through the above technical solution, firstly, operators can open the mounting cover and then install each component of the primary transmission assembly into the primary housing, effectively improving the ease of disassembly and assembly; secondly, the internal space is rationally utilized, so that the first and second bearings on the gear shaft are effectively supported, resulting in a high degree of structural compactness.

[0013] Preferably, the secondary housing is provided with an inner support ring and an outer enclosure ring, and an installation cavity is formed between the inner support ring and the outer enclosure ring. The output gear is sleeved on the outside of the inner support ring, a third bearing is installed between the output gear and the inner support ring, and a first skeleton oil seal is provided between the output gear and the outer enclosure ring. It also includes a mounting plate, which is installed on the end of the inner support ring away from the secondary housing by locking bolts, and the mounting plate abuts against the inner ring of the third bearing; A second skeleton oil seal is provided between the mounting plate and the output gear.

[0014] The above technical solution makes reasonable use of the internal space structure of the secondary gearbox, which not only effectively improves the rotational stability of the output gear, but also makes the overall structure of the secondary gearbox highly compact and effectively limits its volume.

[0015] Preferably, there are two third bearings arranged on the inner support ring.

[0016] Through the above technical solution, the two third bearings can effectively improve the overall rotational stability of the output gear.

[0017] Preferably, the output gear has a partition protrusion located between two third bearings and abutting against the outer rings of the two third bearings.

[0018] Through the above technical solution, on the one hand, the partition protrusion can limit the two third bearings and improve the smoothness of operation; on the other hand, from the installation perspective, the first third bearing can be installed into the inner support ring first, and then the output gear can be installed into the mounting cavity, with the partition protrusion abutting against the outer ring of the first third bearing. Then the second third bearing can be installed into the inner support ring until the outer ring of the third third bearing abuts against the partition protrusion. The installation is convenient and the positioning accuracy is high. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an embodiment. Figure 2 ; Figure 3 This is a partial cross-sectional view of an embodiment; Figure 4 This is a schematic diagram of the assembly of the worm gear, the first-stage transmission assembly, and the output gear in the embodiment. Figure 1 ; Figure 5 This is a schematic diagram of the assembly of the worm gear, the first-stage transmission assembly, and the output gear in the embodiment. Figure 2 ; Figure 6 This is a schematic diagram of the assembly of the worm gear, the first-stage transmission assembly, and the output gear in the embodiment. Figure 3 ; Figure 7 This is a partial cross-sectional schematic diagram of the secondary box in the embodiment.

[0020] Reference numerals: 1. Drive motor; 2. Output gear; 3. Worm gear; 4. First-stage housing; 5. Second-stage housing; 51. Inner support ring; 52. Outer enclosure ring; 53. Mounting cavity; 6. First-stage transmission assembly; 61. Gear shaft; 62. Worm gear; 63. Transmission gear; 7. Connecting bolt; 8. Mounting hole; 9. Clearance; 10. Locating pin; 11. Mounting cover; 12. First bearing; 13. Second bearing; 14. Third bearing; 15. First skeleton oil seal; 16. Mounting plate; 17. Second skeleton oil seal; 18. Separating protrusion; 19. Screw. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 The specific embodiments of this utility model will be further described in detail to make the technical solution of this utility model easier to understand and master.

[0022] A tool magazine reducer with adjustable center distance includes a drive motor 1, a housing, a primary transmission assembly 6, and an output gear 2.

[0023] The housing comprises a primary housing 4 and a secondary housing 5, which are designed as separate units. The drive motor 1 and the primary transmission assembly 6 are both mounted on the primary housing 4. The output gear 2 is also mounted on the primary housing 4. A worm gear 3 is fitted to the power output end of the drive motor 1, and the driving force of the drive motor 1 is transmitted to the output gear 2 through the primary transmission assembly 6.

[0024] The primary transmission assembly 6 is rotatably connected within the primary housing 4. The primary transmission assembly 6 includes a gear shaft 61, on which a worm gear 62 and a transmission gear 63 are mounted. The output gear 2 is rotatably connected within the secondary housing 5. The worm 3 and the worm gear 62 cooperate with each other, and the transmission gear 63 and the output gear 2 cooperate with each other.

[0025] To achieve the effect of adjustable center distance between transmission gear 63 and output gear 2, a connecting bolt 7 is also provided. The first-stage housing 4 is provided with a mounting hole 8. The connecting bolt 7 passes through the mounting hole 8 and is threaded onto the second-stage housing 5. A gap 9 is left between the inner wall of the mounting hole 8 and the screw 19 of the connecting bolt 7.

[0026] To further secure the primary housing 4 and the secondary housing 5, a positioning pin 10 is also included, which passes through the primary housing 4 and the secondary housing 5.

[0027] A mounting cover 11 is provided on the primary housing 4. A first bearing 12 and a second bearing 13 are mounted on the gear shaft 61. The first bearing 12 is mounted on the primary housing 4, and the second bearing 13 is mounted on the mounting cover 11.

[0028] The secondary housing 5 is provided with an inner support ring 51 and an outer enclosure ring 52. The inner support ring 51 and the outer enclosure ring 52 are concentrically arranged to form an installation cavity 53 between the inner support ring 51 and the outer enclosure ring 52. The output gear 2 is sleeved on the outside of the inner support ring 51. A third bearing 14 is installed between the output gear 2 and the inner support ring 51. There are two third bearings 14, and the two third bearings 14 are arranged on the inner support ring 51.

[0029] A first skeleton oil seal 15 is provided between the output gear 2 and the outer ring 52.

[0030] It also includes a mounting plate 16, which is mounted to the end of the inner support ring 51 away from the secondary housing 5 by locking bolts 20, and the mounting plate 16 abuts against the inner ring of the third bearing 14; A second skeleton oil seal 17 is provided between the mounting plate 16 and the output gear 2.

[0031] In addition, a partition protrusion 18 is provided in the output gear 2, which is located between the two third bearings 14 and abuts against the outer ring of the two third bearings 14.

[0032] In the actual installation process, the drive motor 1, worm gear 3, and primary transmission assembly 6 are first installed inside the primary housing 4. The first bearing 12 is installed on the primary housing 4, the second bearing 13 is installed on the mounting cover 11, and the first third bearing 14 is installed into the inner support ring 51. Then, the output gear 2 is installed into the mounting cavity 53, with the separating protrusion 18 abutting against the outer ring of the first third bearing 14. The second third bearing 14 is then installed into the inner support ring 51, and so on, until the outer ring of the third third bearing 14 abuts against the separating protrusion 18. At this point, the installation between the output gear 2 and the secondary housing 5 is complete. The mounting plate 16 is installed at the end of the inner support ring 51 using locking bolts 20, and the first skeleton oil seal 15 is installed between the mounting plate 16 and the output gear 2. The second skeleton oil seal 17 is installed between the output gear 2 and the outer ring 52. The first-stage housing 4 is attached to the second-stage housing 5. The connecting bolt 7 is passed through the mounting hole 8 and initially screwed into the threaded hole of the second-stage housing 5. Since there is a gap 9 between the inner wall of the mounting hole 8 and the screw 19 of the connecting bolt 7, the center distance between the transmission gear 63 and the output gear 2 can be adjusted by moving the entire position of the first-stage housing 4, so that the fit between the transmission gear 63 and the output gear 2 is tighter. Tighten all the connecting bolts 7 to complete the initial installation between the first-stage housing 4 and the second-stage housing 5. Drill positioning holes between the first-stage housing 4 and the second-stage housing 5. The positioning pin 10 fits only in the positioning holes between the first-stage housing 4 and the second-stage housing 5 to complete the installation.

[0033] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A tool magazine reducer with adjustable center distance, comprising a drive motor (1), a housing, a primary transmission assembly (6), and an output gear (2), wherein a worm gear (3) is mounted on the power output end of the drive motor (1), and the driving force of the drive motor (1) is transmitted to the output gear (2) through the primary transmission assembly (6), characterized in that: The housing includes a primary housing (4) and a secondary housing (5). The drive motor (1) is mounted on the primary housing (4). The primary transmission assembly (6) is rotatably connected inside the primary housing (4). The primary transmission assembly (6) includes a gear shaft (61). A worm gear (62) and a transmission gear (63) are mounted on the gear shaft (61). The output gear (2) is rotatably connected inside the secondary housing (5). The worm (3) cooperates with the worm gear (62), and the transmission gear (63) cooperates with the output gear (2). The primary housing (4) and the secondary housing (5) are designed as separate units and also include connecting bolts (7). The primary housing (4) is provided with mounting holes (8). The connecting bolts (7) pass through the mounting holes (8) and are threaded onto the secondary housing (5). A gap (9) is left between the inner wall of the mounting holes (8) and the screw (19) of the connecting bolts (7).

2. The tool magazine reducer with adjustable center distance according to claim 1, characterized in that: It also includes a positioning pin (10) that passes through the primary housing (4) and the secondary housing (5).

3. A tool magazine reducer with adjustable center distance according to claim 1 or 2, characterized in that: The primary housing (4) is provided with a mounting cover (11), and a first bearing (12) and a second bearing (13) are mounted on the gear shaft (61). The first bearing (12) is mounted on the primary housing (4), and the second bearing (13) is mounted on the mounting cover (11).

4. A tool magazine reducer with adjustable center distance according to claim 1 or 2, characterized in that: The secondary housing (5) is provided with an inner support ring (51) and an outer enclosure ring (52). An installation cavity (53) is formed between the inner support ring (51) and the outer enclosure ring (52). The output gear (2) is sleeved on the outside of the inner support ring (51). A third bearing (14) is installed between the output gear (2) and the inner support ring (51). A first skeleton oil seal (15) is provided between the output gear (2) and the outer enclosure ring (52). It also includes a mounting plate (16), which is mounted on the end of the inner support ring (51) away from the secondary housing (5) by locking bolts (20), and the mounting plate (16) abuts against the inner ring of the third bearing (14); A second skeleton oil seal (17) is provided between the mounting plate (16) and the output gear (2).

5. A tool magazine reducer with adjustable center distance according to claim 4, characterized in that: There are two third bearings (14), which are arranged on the inner support ring (51).

6. A tool magazine reducer with adjustable center distance according to claim 5, characterized in that: The output gear (2) is provided with a partition protrusion (18), which is located between two third bearings (14) and abuts against the outer ring of the two third bearings (14).

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