Adjusting device for controlling synchronization of eccentric gears

Abstract

The utility model discloses an adjusting device for controlling synchronization of an eccentric gear, relates to the field of press machines, and aims to solve the problem that an existing eccentric gear synchronization method in the prior art needs to perform synchronous adjustment after the eccentric gear is installed, and is troublesome. The two sides of the front end face of the supporting tool are rotationally connected with eccentric gear shafts, the front ends of the two eccentric gear shafts are rotationally connected with eccentric gears, the two sides of the middle of the front end face of the supporting tool are rotationally connected with intermediate gear shafts, and the front ends of the two intermediate gear shafts are provided with matched gears. Intermediate gears are arranged in the middles of the two intermediate gear shafts, a driving shaft is rotationally connected to one side of the upper end of the middle of the front end face of the supporting tool, and a driving gear is fixedly connected to the front end of the driving shaft.

Description

Technical Field

[0001] The utility model relates to the field of presses, in particular to an adjusting device for controlling the synchronization of eccentric gears. Background Art

[0002] A press is a versatile, compact machine with a wide range of applications and high production efficiency. Driven primarily by an electric motor, it applies strong pressure to metal blanks, causing them to plastically deform and fracture, thereby forming the desired part. Presses are widely used in processes such as cutting, punching, blanking, bending, riveting, and forming. Depending on their transmission method and operating principle, presses can be divided into various types, including screw presses, crank presses (mechanical presses), hydraulic presses, and pneumatic presses, to meet diverse process and production needs.

[0003] In order to improve the accuracy of machine tools in the press industry, it is necessary to ensure that the bottom dead center of the two eccentric gears can be at the same position when they are running. To this end, the current methods to ensure the synchronization of the two eccentric gears are:

[0004] 1. Keying method

[0005] When installing each gear, it is necessary to measure the synchronization difference between the two eccentric gears from 0° to 180° after installation. When the difference exceeds a certain range, it is necessary to remove the connecting key on the intermediate gear, rotate the intermediate gear, and grind the connecting key to achieve synchronization of the eccentric gears.

[0006] 2. Screw adjustment pin method

[0007] The ring gear and auxiliary gear of one of the two intermediate gears are connected with screws. After the gears are installed, measure the synchronization difference between the two eccentric gears from 0° to 180°. When the difference exceeds a certain range, adjust the ring gear, tighten the screws, and repeat the measurement. If the difference is within the allowable range, remove the movable gear, tighten the screws, and fix the movable intermediate gear with pins. Finally, reinstall the transmission gears.

[0008] However, the existing eccentric gear synchronization methods all require synchronization adjustment after the eccentric gear is installed, which is rather troublesome; therefore, the market urgently needs to develop an adjustment device for controlling the synchronization of the eccentric gear to help people solve the existing problem. Utility Model Content

[0009] The purpose of the utility model is to provide an adjustment device for controlling the synchronization of eccentric gears, so as to solve the problem that the existing eccentric gear synchronization methods proposed in the above background technology all require synchronization adjustment after the eccentric gears are installed, which is relatively troublesome.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustment device for controlling the synchronization of eccentric gears, comprising a supporting tool, both sides of the front end face of the supporting tool are rotatably connected to eccentric gear shafts, the front ends of the two eccentric gear shafts are rotatably connected to eccentric gears, both sides of the middle part of the front end face of the supporting tool are rotatably connected to intermediate gear shafts, the front ends of the two intermediate gear shafts are provided with matching gears, the middle parts of the two intermediate gear shafts are provided with intermediate gears, one side of the middle upper end of the front end face of the supporting tool is rotatably connected to a drive shaft, and the front end of the drive shaft is fixedly connected to a drive gear.

[0011] Preferably, a first connecting key is fixedly provided at the front end of one side of the intermediate gear shaft, and a first keyway is provided on the middle side of the interior of the mating gear. When the front end of the intermediate gear shaft passes through the middle of the mating gear, the first connecting key slides into the first keyway.

[0012] Preferably, a bar-shaped connecting key is fixedly provided in the middle of one side of the intermediate gear shaft, and a second keyway is provided on one side of the middle part of the interior of the intermediate gear. When the middle part of the intermediate gear shaft passes through the middle part of the intermediate gear, the bar-shaped connecting key slides into the second keyway.

[0013] Preferably, the two matching gears are respectively meshed and connected with the tooth portions of the two eccentric gears.

[0014] Preferably, the teeth of the two intermediate gears are meshed and connected, bearings are provided at the middle of the rear ends of the two intermediate gears, and springs are provided between the rear ends of the two bearings and the front end surface of the supporting tooling.

[0015] Preferably, the intermediate gear is fixedly connected to the outer ring of the bearing by screws, the front end of the spring is fixedly connected to the inner ring of the bearing, and the rear end of the spring is fixedly connected to the supporting tooling.

[0016] Preferably, the driving gear is meshedly connected with the middle gear tooth portion on the middle gear shaft on one side.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) In this utility model, the relative movement of the two intermediate gears within a certain range is achieved by providing a spring and a bar-shaped connecting key structure. This design innovation allows the two eccentric gears to be easily adjusted synchronously before or after installation, eliminating the tedious synchronization adjustment steps after the eccentric gears are installed in the traditional method, thereby significantly improving work efficiency. The convenience of this synchronization adjustment not only reduces the difficulty of operation, but also shortens the time for equipment installation and commissioning.

[0019] (2) In this utility model, the intermediate gear can slide backward in the middle of the intermediate gear shaft by setting the bar-shaped connecting key. When the intermediate gear slides, the second keyway slides along the bar-shaped connecting key, so as to keep the intermediate gear and the intermediate gear shaft rotating synchronously.

[0020] (3) In this utility model, through the setting of bearings, bearings are set in the middle of the rear ends of the two intermediate gears, and springs are set between the rear ends of the two bearings and the front end faces of the supporting fixtures. The intermediate gears are fixedly connected to the outer rings of the bearings by screws, and the front ends of the springs are fixedly connected to the inner rings of the bearings, so that the intermediate gears can rotate at the front ends of the springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of an adjustment device for controlling eccentric gear synchronization according to the present invention;

[0022] Figure 2 This is a side sectional view of the intermediate gear shaft of the present utility model;

[0023] Figure 3 It is a top sectional view of the utility model;

[0024] Figure 4 It is a schematic diagram of the principle of the present utility model.

[0025] In the figure: 1. Support tooling; 2. Eccentric gear shaft; 201. Eccentric gear; 3. Intermediate gear shaft; 301. First connecting key; 302. Bar connecting key; 4. Mating gear; 401. First keyway; 5. Intermediate gear; 501. Second keyway; 502. Bearing; 503. Spring; 6. Drive shaft; 601. Drive gear. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] See also Figure 1-4 The utility model provides an embodiment: an adjusting device for controlling the synchronization of eccentric gears, comprising a supporting tooling 1, both sides of the front end surface of the supporting tooling 1 are rotatably connected with eccentric gear shafts 2, the front ends of the two eccentric gear shafts 2 are rotatably connected with eccentric gears 201, both sides of the middle part of the front end surface of the supporting tooling 1 are rotatably connected with intermediate gear shafts 3, the front ends of the two intermediate gear shafts 3 are provided with matching gears 4, the middle parts of the two intermediate gear shafts 3 are provided with intermediate gears 5, one side of the middle upper end of the front end surface of the supporting tooling 1 is rotatably connected with a driving shaft 6, and the front end of the driving shaft 6 is fixedly connected with a driving gear 601.

[0028] See also Figure 1-3, a first connecting key 301 is fixedly provided on the front end of one side of the intermediate gear shaft 3, and a first key groove 401 is provided on the middle side of the interior of the mating gear 4. When the front end of the intermediate gear shaft 3 passes through the middle of the mating gear 4, the first connecting key 301 slides into the first key groove 401. A bar connecting key 302 is fixedly provided on the middle part of one side of the intermediate gear shaft 3, and a second key groove 501 is provided on the middle side of the interior of the intermediate gear 5. When the middle part of the intermediate gear shaft 3 passes through the middle of the intermediate gear 5, the bar connecting key 302 slides into the second key groove 501, so that when the intermediate gear shaft 3 rotates, the mating gear 4 and the intermediate gear 5 are synchronously driven to rotate, and at the same time, the intermediate gear 5 can be rotated in the intermediate gear The middle part of the shaft 3 slides backward, and when the intermediate gear 5 slides, the second keyway 501 slides along the bar-shaped connecting key 302, keeping the intermediate gear 5 and the intermediate gear shaft 3 rotating synchronously, and the two matching gears 4 are respectively engaged with the teeth of the two eccentric gears 201, and the teeth of the two intermediate gears 5 are engaged with each other. The driving gear 601 is engaged with the teeth of the intermediate gear 5 on one side of the intermediate gear shaft 3, and the driving gear 601 drives one intermediate gear 5 to rotate, and the two intermediate gears 5 synchronously drive the two intermediate gear shafts 3 to rotate, so that the two intermediate gear shafts 3 synchronously drive the two matching gears 4 to rotate, and then the two matching gears 4 synchronously drive the two eccentric gears 201 to rotate.

[0029] See also Figure 2-3 , a bearing 502 is provided in the middle of the rear end of the two intermediate gears 5, and a spring 503 is provided between the rear end of the two bearings 502 and the front end surface of the support tooling 1. The intermediate gear 5 and the outer ring of the bearing 502 are fixedly connected by screws, the front end of the spring 503 is fixedly connected to the inner ring of the bearing 502, and the rear end of the spring 503 is fixedly connected to the support tooling 1. When the two eccentric gears 201 rotate asynchronously, by pushing an intermediate gear 5 that is not engaged with the driving gear 601 to slide backward along the middle part of the intermediate gear shaft 3 and compressing the spring 503, the two intermediate gears 5 are disengaged, and then the rotation of the two eccentric gears 201 can be independently adjusted, so that the two eccentric gears 201 rotate synchronously and are paired.

[0030] Working Principle: When machining the two eccentric gears 201, mark A on the tooth grooves or tooth tops of the eccentric gears 201 to control machining accuracy and tolerance. When machining the two intermediate gears 5, mark B on the tooth grooves or tooth tops of each intermediate gear 5, and machine the second keyway 501 to ensure the center-to-tooth relationship and control tolerance. When machining the two mating gears 4, the tooth groove or tooth top of the mating gear 4 is used as a reference, and a mark C is made. The first keyway 401 is machined to ensure the relationship between the center of the first keyway 401 and the tooth, and to control the tolerance. After all the gears are installed on the support fixture 1 in sequence, they are detected by a laser tracker to confirm whether the marks of the two eccentric gears 201 when rotating are on a straight line. When the marks of the two eccentric gears 201 when rotating appear on a straight line, it means that the two eccentric gears 201 are synchronized. When they do not appear on a straight line, when the two eccentric gears 201 rotate asynchronously, an intermediate gear 5 that is not engaged with the driving gear 601 is pushed to slide backward along the middle of the intermediate gear shaft 3, and the spring 503 is compressed to disengage the two intermediate gears 5. Then, the rotation of the two eccentric gears 201 can be independently adjusted, so that the two eccentric gears 201 rotate synchronously and are paired. The mating synchronization spring assists in pushing the moving intermediate gear 5 forward to re-engage the two intermediate gears 5, and synchronize the two eccentric gears 201.

[0031] 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. An adjusting device for controlling the synchronization of eccentric gears, comprising a supporting fixture (1), characterized in that: Both sides of the front end face of the support fixture (1) are rotatably connected to eccentric gear shafts (2), and the front ends of the two eccentric gear shafts (2) are rotatably connected to eccentric gears (201). Both sides of the middle portion of the front end face of the support fixture (1) are rotatably connected to intermediate gear shafts (3), and the front ends of the two intermediate gear shafts (3) are provided with matching gears (4). The middle portions of the two intermediate gear shafts (3) are provided with intermediate gears (5). One side of the middle upper end of the front end face of the support fixture (1) is rotatably connected to a drive shaft (6), and the front end of the drive shaft (6) is fixedly connected to a drive gear (601).

2. The adjusting device for controlling the synchronization of eccentric gears according to claim 1, characterized in that: A first connecting key (301) is fixedly provided at the front end of one side of the intermediate gear shaft (3), and a first keyway (401) is provided at the middle side of the interior of the mating gear (4). When the front end of the intermediate gear shaft (3) passes through the middle of the mating gear (4), the first connecting key (301) slides into the interior of the first keyway (401).

3. The adjusting device for controlling the synchronization of eccentric gears according to claim 1, characterized in that: A bar-shaped connecting key (302) is fixedly provided in the middle of one side of the intermediate gear shaft (3), and a second keyway (501) is provided in the middle of the interior of the intermediate gear (5). When the middle of the intermediate gear shaft (3) passes through the middle of the intermediate gear (5), the bar-shaped connecting key (302) slides into the interior of the second keyway (501).

4. The adjusting device for controlling the synchronization of eccentric gears according to claim 1, characterized in that: The two matching gears (4) are respectively meshed and connected with the teeth of the two eccentric gears (201).

5. The adjusting device for controlling the synchronization of eccentric gears according to claim 1, characterized in that: The teeth of the two intermediate gears (5) are meshed and connected, a bearing (502) is provided at the middle of the rear end of each of the two intermediate gears (5), and a spring (503) is provided between the rear ends of the two bearings (502) and the front end surface of the supporting fixture (1).

6. The adjusting device for controlling the synchronization of eccentric gears according to claim 5, characterized in that: The intermediate gear (5) is fixedly connected to the outer ring of the bearing (502) via screws, the front end of the spring (503) is fixedly connected to the inner ring of the bearing (502), and the rear end of the spring (503) is fixedly connected to the supporting fixture (1).

7. The adjusting device for controlling the synchronization of eccentric gears according to claim 1, characterized in that: The driving gear (601) is meshedly connected with the teeth of the intermediate gear (5) on the intermediate gear shaft (3) on one side.

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