Nut fastening machine for assembling speed reducer

Abstract

The utility model relates to the technical field of mechanical assembly, in particular to a nut fastening machine for assembling a speed reducer, a fastening assembly comprises a placing table fixedly installed on a base, a supporting plate fixedly installed at the vertical end of the base, a mounting plate connected to the supporting plate in a sliding mode, and an electric motor fixedly installed on the mounting plate. A rotating shaft is fixedly connected to the electric motor, a sleeve matched with a speed reducer nut in shape is detachably installed on the rotating shaft, a fixing assembly used for conveniently disassembling and assembling the sleeve is arranged on the rotating shaft, and an electric push rod used for driving the sleeve to adjust the height in the vertical direction is fixedly installed on the supporting plate. According to the nut fastening device, the nut of the speed reducer can be automatically fastened through the fastening assembly, the labor intensity of workers is reduced, the safety of operators and the safety of equipment are guaranteed, and the production speed is increased. And the conditions of product faults, reworking or scrapping caused by improper fastening of the nut by manual operation are reduced. The production cost is reduced and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical assembly, in particular to a nut tightening machine for assembling a reducer. Background Art

[0002] In modern industrial production, reducers, as an important mechanical transmission device, are widely used in various fields such as mining, metallurgy, chemical industry, construction, and machinery manufacturing. When assembling reducers, workers are required to tighten the nuts one by one. Manually tightening nuts requires a lot of time and effort, and the operation process is cumbersome. The tightening work is extremely time-consuming, extending the production cycle of reducers, reducing production efficiency, and making it difficult to meet the needs of the rapid development of modern industry. Workers need to bend over, stand, or use considerable force for long periods of time to operate. This high-intensity physical labor can easily lead to worker fatigue and muscle strain. Improper use of force can also lead to safety accidents such as tool slips and sprains, affecting workers' health and reducing work efficiency and production quality. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a nut tightening machine for assembling a reducer, so as to solve the technical problems in the above-mentioned background technology that manual tightening of nuts of a reducer is cumbersome, inefficient, and prone to causing safety accidents.

[0004] In order to solve the above technical problems, the present utility model provides the following technical solutions: a nut tightening machine for assembling a reducer, comprising an L-shaped base, a fastening assembly for tightening the reducer nut provided on the base, and a clamping assembly for fixing the reducer during machining provided on the base;

[0005] The fastening assembly includes a placing table fixedly mounted on the base, a support plate fixedly mounted on the vertical end of the base, a mounting plate slidably connected to the support plate, an electric motor fixedly mounted on the mounting plate, a rotating shaft fixedly connected to the electric motor, a sleeve detachably mounted on the rotating shaft that is adapted to the shape of the reducer nut, a fixing assembly for facilitating the disassembly and assembly of the sleeve is provided on the rotating shaft, and an electric push rod for driving the sleeve to adjust its height in the vertical direction is fixedly mounted on the support plate.

[0006] Preferably, the fixing assembly includes three groups of clamping plates fixedly mounted on the rotating shaft and distributed in a circular array, the ends of the clamping plates are fixedly connected, the openings are open, the clamping plates are provided with threads, and the clamping plates are threadedly connected to a rotating head.

[0007] Preferably, the sleeve is located above the placement table, and a processing space is formed between the sleeve and the placement table, and the processing space is larger than the size of the reducer to be processed.

[0008] Preferably, the clamping assembly includes a mounting groove provided on the base, a gear is rotatably installed in the mounting groove, racks are symmetrically arranged and extended out of the base and are meshed and connected on both sides of the gear, the end of the rack is fixedly connected to a support block, a clamping block is fixedly installed on the support block, and a motor for driving the gear to rotate is fixedly installed on the base.

[0009] Preferably, a rubber head is fixedly mounted on the clamping block, and the thickness of the rubber head is not less than 1 cm.

[0010] Preferably, the rack is longer than the placement table, and the clamping block and the rubber head are both beyond the vertical horizontal plane of the placement table.

[0011] Preferably, three groups of legs distributed along a circular array are fixedly installed under the base, the height of the legs is greater than the height of the motor, and shock-absorbing pads are fixedly installed on the bottom of the legs.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This utility model automatically tightens the reducer nut through a tightening assembly, reducing manual labor, ensuring operator and equipment safety, and increasing production speed. It also reduces product failures, rework, or scrap caused by improper manual nut tightening. This reduces production costs and improves product assembly accuracy and quality.

[0014] 2. The utility model can clamp and fix the reducer during assembly through the clamping component, prevent the reducer from rotating and deviating, ensure that the nut is accurately tightened to the predetermined position, improve the axial accuracy of the nut tightening, and improve the production quality of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a nut tightening machine used for assembling a reducer of the utility model;

[0017] Figure 2 This is a schematic diagram of the fastening assembly structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structural clamping assembly of the utility model.

[0019] In the figure: 1. Base;

[0020] 2. Fastening assembly; 21. Placement table; 22. Support plate; 23. Mounting plate; 24. Electric motor; 25. Rotating shaft; 26. Sleeve; 27. Fixing assembly; 271. Clamping piece; 272. Thread;

[0021] 273, head rotation; 28, electric push rod;

[0022] 3. Clamping assembly; 31. Mounting slot; 32. Gear; 33. Rack; 34. Support block; 35. Clamping block; 36. Motor; 37. Rubber head;

[0023] 4. Outriggers;

[0024] 5. Shock-absorbing pad. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] In order to solve the problem that manual tightening of reducer nuts is cumbersome, inefficient, and prone to safety accidents, please refer to Figure 1-Figure 3 The present embodiment provides a nut tightening machine for assembling a reducer, which can automatically tighten the nuts of the reducer and reduce the labor intensity of manual labor. The machine includes an L-shaped base 1 located in the processing area, and the base 1 serves as a carrier for supporting the structure set thereon. A fastening assembly 2 for fastening the nuts of the reducer is provided on the base 1, and a clamping assembly 3 for fixing the reducer during processing is provided on the base 1. When tightening the nut of the reducer, the nut is simply installed on the reducer first, and then the reducer is placed on the base 1, and then fixed by the clamping assembly 3 to prevent the reducer from rotating and deviating when tightening the nut, ensuring that the nut is accurately tightened to the predetermined position, and then the nut of the reducer is automatically tightened by the fastening assembly 2, thereby reducing the labor intensity of manual labor, ensuring the safety of the operator and the safety of the equipment, and improving the production speed.

[0028] Manually tightening nuts requires significant time and effort, and the process is cumbersome. This time-consuming process prolongs the production cycle of reducers and reduces production efficiency. The tightening assembly 2 includes a platform 21 fixedly mounted on the base 1. Platform 21 is used to place the reducer being processed. A support plate 22 is fixedly mounted on the vertical end of the base 1. This support plate 22 supports an electric push rod 28 and an electric motor 24. A mounting plate 23 is slidably connected to the support plate 22 and secured to the movable end of the push rod 28. The mounting plate 23 connects the push rod 28 and the electric motor 24. The mounting plate 23 is fixedly mounted on the mounting plate 23 to drive a sleeve 26. A rotating shaft 25 is fixedly connected to the electric motor 24. A sleeve 26, shaped to match the reducer nut, is removably mounted on the rotating shaft 25. Sleeve 26 is positioned above platform 21, defining a processing space between the platform and the reducer. This processing space is larger than the size of the reducer being processed, ensuring unobstructed tightening of the reducer. An electric push rod 28 for driving the sleeve 26 to adjust its height in the vertical direction is fixedly mounted on the support plate 22. When tightening the reducer nut, place it on the placement table 21, then adjust the position of the reducer so that the sleeve 26 is located directly above the tightened nut, and then fix it by the clamping assembly 3. Start the electric push rod 28 to bring the electric motor 24 and the sleeve 26 close to the nut to be tightened. After the sleeve 26 covers the nut, the electric motor 24 starts, and under its action, it drives the sleeve 26 to rotate to tighten the nut, thereby realizing automatic tightening of the reducer nut, reducing manual labor intensity, ensuring the safety of operators and equipment, and increasing production speed. Reduce product failures, rework or scrap caused by improper manual tightening of nuts. Reduce the company's production costs and improve the accuracy of product assembly and product quality.

[0029] Considering the varying sizes of nuts used in different reducers, the sleeve 26 needs to be replaced before processing to accommodate the tightening of the nut. A fixing assembly 27 is provided on the rotating shaft 25 to facilitate assembly and disassembly of the sleeve 26. The fixing assembly 27 includes three sets of clamping plates 271 arranged in a circular array and fixedly mounted on the rotating shaft 25. The clamping plates 271 are used to clamp and secure the sleeve 26. The ends of the clamping plates 271 are fixedly connected, and the openings are open to ensure that the sleeve 26 can be placed in the openings. The clamping plates 271 are provided with threads 272, to which a rotary head 273 is threadedly connected. The rotary head 273 is used to drive the clamping plates 271 closer together. Before tightening the nut of the reducer, insert the sleeve 26 that matches the size of the nut to be tightened into the clamping piece 271, and then rotate the turntable 273 so that it can move along the thread on the clamping piece 271. During the movement, the clamping piece 271 is squeezed to make it close, thereby fixing the sleeve 26 in the clamping piece 271, ensuring that it can be replaced in time and quickly when tightening the nut, thereby improving processing efficiency.

[0030] Considering that the position of the reducer is easy to deviate during the tightening process of the reducer nut, resulting in inaccurate position of the tightening nut, poor tightening effect, and damage to the reducer, it is necessary to fix the reducer to prevent its position from changing. Figure 1-Figure 3 The clamping assembly 3 includes a mounting groove 31 provided on the base 1, in which a gear 32 is rotatably installed. The gear 32 is used to transmit the power to the rack 33. Racks 33 symmetrically arranged and extending out of the base 1 are meshed and connected on both sides of the gear 32. The rack 33 is used to connect to the support block 34 and transmit the power to it. The length of the rack 33 is greater than the placement table 21, and the clamping block 35 and the rubber head 37 both exceed the vertical horizontal plane of the placement table 21 to ensure that the reducer can be clamped and fixed. The end of the rack 33 is fixedly connected to the support block 34, and the support block 34 is used to connect the clamping block 35. The clamping block 35 is fixedly installed on the support block 34, and the motor 36 for driving the gear 32 to rotate is fixedly installed on the base 1. Three groups of legs 4 distributed along a circular array are fixedly installed below the base 1. The height of the legs 4 is greater than the height of the motor 36 to ensure that the motor 36 can operate stably without being hindered. A shock-absorbing pad 5 is fixedly mounted on the bottom of the support leg 4 to cushion the vibrations generated by the motor 36 and reduce shaking. After the reducer is placed on the placement table 21 and adjusted to the appropriate position, the motor 36 is started, which causes the gear 32 to rotate. The gear 32 drives the rack 33 to move, and the rack 33 drives the clamping block 35 close to the reducer on the placement table 21, thereby clamping and fixing the reducer, preventing the reducer from rotating and deviating, ensuring that the nut is accurately tightened to the predetermined position, improving the axial precision of the nut tightening, and improving the production quality of the reducer.

[0031] Example 2

[0032] Based on Example 1, considering that the reducer may be squeezed when it is clamped and fixed, it is necessary to reduce this possibility. Figure 1-Figure 3 A rubber head 37 is fixedly mounted on the clamping block 35. The thickness of the rubber head 37 is not less than 1 cm, ensuring that the clamping effect is not affected by the thickness. Driven by the clamping block 35, the rubber head 37 is close to the surface of the reducer to clamp it. Due to the material properties of the rubber head 37, it can avoid damage to the reducer during clamping and increase the friction on the reducer surface, thereby improving the clamping effect.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A nut tightening machine for assembling a reducer, comprising an L-shaped base (1), characterized in that: The base (1) is provided with a fastening assembly (2) for fastening the reducer nut, and the base (1) is provided with a clamping assembly (3) for fixing the reducer during processing; The fastening assembly (2) comprises a placing table (21) fixedly mounted on a base (1); a supporting plate (22) fixedly mounted on a vertical end of the base (1); a mounting plate (23) slidably connected to the supporting plate (22); an electric motor (24) fixedly mounted on the mounting plate (23); a rotating shaft (25) fixedly connected to the electric motor (24); a sleeve (26) matching the shape of a reducer nut detachably mounted on the rotating shaft (25); a fixing assembly (27) for facilitating the disassembly and assembly of the sleeve (26); and an electric push rod (28) for driving the sleeve (26) to adjust its height in a vertical direction fixedly mounted on the supporting plate (22).

2. A nut tightening machine for assembling a reducer according to claim 1, characterized in that: The fixing assembly (27) comprises three groups of clamping pieces (271) fixedly mounted on the rotating shaft (25) and distributed in a circular array. The ends of the clamping pieces (271) are fixedly connected, and the openings are open. The clamping pieces (271) are provided with threads (272), and a rotating head (273) is threadedly connected to the clamping pieces (271).

3. The nut tightening machine for assembling a reducer according to claim 1, characterized in that: The sleeve (26) is located above the placement table (21), and a processing space is formed therebetween. The processing space is larger than the size of the reducer to be processed.

4. The nut tightening machine for assembling a reducer according to claim 1, characterized in that: The clamping assembly (3) comprises a mounting groove (31) provided on the base (1), a gear (32) being rotatably mounted in the mounting groove (31), racks (33) symmetrically arranged and extending out of the base (1) being meshed and connected on both sides of the gear (32), a support block (34) being fixedly connected to the end of the rack (33), a clamping block (35) being fixedly mounted on the support block (34), and a motor (36) for driving the gear (32) to rotate being fixedly mounted on the base (1).

5. The nut tightening machine for assembling a reducer according to claim 4, characterized in that: A rubber head (37) is fixedly mounted on the clamping block (35), and the thickness of the rubber head (37) is not less than 1 cm.

6. The nut tightening machine for assembling a reducer according to claim 5, characterized in that: The rack (33) is longer than the placement platform (21), and the clamping block (35) and the rubber head (37) both extend beyond the vertical horizontal plane of the placement platform (21).

7. The nut tightening machine for assembling a reducer according to claim 4, characterized in that: Three groups of legs (4) distributed along a circular array are fixedly installed below the base (1); the height of the legs (4) is greater than the height of the motor (36); and a shock-absorbing pad (5) is fixedly installed at the bottom of the legs (4).

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