Elastic tailstock structure for worm grinding wheel gear grinding machine

Abstract

The utility model discloses an elastic tailstock structure for a worm grinding wheel gear grinding machine, which comprises a sliding plate body and a servo driving mechanism, the sliding plate body is arranged on the gear grinding machine in a sliding manner, the servo driving mechanism is used for pushing the sliding plate body to slide, and the sliding plate body is provided with a Morse taper tip which is used for contacting a gear to abut against the gear; the servo driving mechanism comprises a servo motor and a ball screw connected with the driving end of the servo motor, a nut of the ball screw is matched with an upper gland on the sliding plate body through a crimping assembly, and a first elastic assembly used for transmitting pressure of the servo driving mechanism is arranged between the upper gland and the sliding plate body; a screw rod of the ball screw is arranged in the sliding plate body in a penetrating manner; a second elastic component for balancing the overall gravity of the sliding plate body is arranged at the end part of the screw rod of the ball screw; the first elastic assembly is used for absorbing and storing pressure for pressing workpieces, rotation of the ball screw can be adjusted according to needs for the workpieces with different materials, hardness and machining requirements, so that the pressure of the spring is adjusted, and finally the pressing force is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding wheel gear grinders, in particular to an elastic tailstock structure for a worm grinding wheel gear grinder. Background Art

[0002] The rear column of the existing gear processing machine is used to install the top of the shaft gear or the gland of the disc gear. Its structure mostly uses hydraulic cylinders or servo motors to provide a fixed clamping force, which cannot meet the processing requirements of adjusting the clamping force in specific situations and is not convenient for controlling the clamping force. Utility Model Content

[0003] Technical purpose: In view of the above-mentioned deficiencies in existing gear processing, the utility model discloses an elastic tailstock structure for a worm wheel gear grinding machine which can linearly adjust the clamping force to meet different clamping requirements.

[0004] Technical solution: To achieve the above technical objectives, the utility model adopts the following technical solution:

[0005] A flexible tailstock structure for a worm wheel gear grinding machine comprises a slide plate body slidably arranged on the gear grinding machine and a servo drive mechanism for pushing the slide plate body to slide, the slide plate body is loaded with a Morse taper top for contacting a gear for tightening; the servo drive mechanism comprises a servo motor and a ball screw connected to the driving end of the servo motor, the nut of the ball screw cooperates with an upper pressure cover on the slide plate body through a crimping assembly, a first elastic assembly for transmitting the pressure of the servo drive mechanism is provided between the upper pressure cover and the slide plate body; the screw of the ball screw is passed through the slide plate body, and a second elastic assembly for balancing the overall gravity of the slide plate body is provided at the end of the screw of the ball screw.

[0006] Preferably, the crimping assembly of the utility model comprises a connecting sleeve and a connecting sleeve sleeved on the screw rod of the ball screw, the connecting sleeve connects the nut and the connecting sleeve of the ball screw, and a shoulder for cooperating with the upper pressure cover is provided on the connecting sleeve.

[0007] Preferably, the first elastic component of the utility model includes two groups of adjusting screws and spring rods symmetrically arranged about the ball screw, the adjusting screws are fixed on the upper pressure cover, the lower ends are connected to the spring rods, a mounting groove for cooperating with the spring rods is provided on the slide body, a compression spring is sleeved on the spring rod, one end of the compression spring abuts against the round table of the spring rod, and the other end abuts against the bottom of the mounting groove.

[0008] Preferably, the second elastic component of the utility model includes a mounting rod rotatably connected to the end of the ball screw screw and an intermediate compression spring sleeved on the connecting sleeve; a lower end cover is fixed to the mounting rod with bolts, and a lower push rod is symmetrically provided on the lower end cover about the center of the mounting rod, the lower push rod is threadedly connected to the lower end cover, and a spacer sleeve for transmitting the force of the lower push rod is provided between the upper end of the lower push rod and the intermediate compression spring, and a pressure plate for abutting against the upper end of the intermediate compression spring is provided in the slide plate body.

[0009] Preferably, the skateboard body of the utility model is connected to the gear grinding machine through a guide rail.

[0010] Beneficial effects: The elastic tailstock structure for a worm wheel gear grinding machine provided by the utility model has the following beneficial effects:

[0011] 1. The utility model uses the compression spring of the first elastic component to absorb and store the pressure of the compressed workpiece. For workpieces of different materials, hardness, and processing requirements, the rotation of the ball screw can be adjusted as needed to adjust the spring pressure and finally adjust the clamping force.

[0012] 2. The utility model is provided with a second elastic component, and the thread of the lower push rod can preload the intermediate spring. When the entire skateboard stops moving and moves up and down, the intermediate spring is used to absorb and store pressure, thereby overcoming the deadweight of the skateboard body and other parts and the acceleration of changing the moving state. This design helps to improve the stress condition of the lower end cover and increase the safety of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the skateboard body of the utility model;

[0016] Among them, 1-slide plate body, 2-Morse taper top, 3-ball screw, 4-upper pressure cover, 5-connecting sleeve, 6-connecting sleeve, 7-shoulder, 8-adjusting screw, 9-spring rod, 10-mounting groove, 11-compression spring, 12-mounting rod, 13-middle compression spring, 14-lower end cover, 15-lower push rod, 16-spacer, 17-pressure plate, 18-guide rail. DETAILED DESCRIPTION

[0017] Reference will now be made in detail to embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by explaining the apparatus, composition and materials of the present disclosure, rather than limiting. On the contrary, the following description provides a convenient illustration of an exemplary embodiment for implementing the present disclosure. In fact, it will be clear to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. For example, a feature shown or described as a part of an embodiment can be used in conjunction with another embodiment to produce yet another embodiment. It is expected that the present disclosure covers such modifications and variations within the scope of the appended claims and their equivalents. Other objects, features and aspects of the present disclosure are disclosed in or clear from the following detailed description. It will be understood by those of ordinary skill in the art that this discussion is only a description of exemplary embodiments and is not intended to limit the wider aspects of the present disclosure.

[0018] like Figure 1 and Figure 2 As shown, the utility model discloses an elastic tailstock structure for a worm wheel gear grinding machine, comprising a slide plate body 1 slidably arranged on the gear grinding machine and a servo drive mechanism for pushing the slide plate body 1 to slide, the slide plate body 1 and the gear grinding machine are connected by a guide rail 18, and the slide plate body 1 is loaded with a Morse taper top 2 for contacting the gear for tightening; the servo drive mechanism comprises a servo motor and a ball screw 3 connected to the driving end of the servo motor, the nut of the ball screw 3 is matched with the upper pressure cover 4 on the slide plate body 1 through a crimping assembly, and a first elastic component for transmitting the pressure of the servo drive mechanism is provided between the upper pressure cover 4 and the slide plate body 1; the screw of the ball screw 3 is penetrated in the slide plate body 1, and a second elastic component for balancing the overall gravity of the slide plate body is provided at the end of the screw of the ball screw.

[0019] In a specific embodiment, the crimping assembly of the utility model includes a connecting sleeve 5 and a connecting sleeve 6 which are sleeved on the screw of the ball screw 3, the connecting sleeve 6 connects the nut of the ball screw 3 and the connecting sleeve 5, and a shoulder 7 for cooperating with the upper pressure cover 4 is provided on the connecting sleeve 5.

[0020] The shaft shoulder 7 transmits axial pressure to drive the upper pressure cover 4 to move downward, and applies pressure to the slide plate body 1 through the first elastic component. The clamping force can be controlled by different downward movement distances.

[0021] like Figure 2As shown, the first elastic component of the utility model includes two groups of adjusting screws 8 and spring rods 9 symmetrically arranged about the ball screw, the adjusting screw 8 is fixed on the upper cover 4, and the lower end is connected to the spring rod 9, and a mounting groove 10 for cooperating with the spring rod 9 is provided on the slide body 1, and a compression spring 11 is sleeved on the spring rod 9, one end of the compression spring 11 abuts against the round table of the spring rod 9, and the other end abuts against the bottom of the mounting groove 10.

[0022] The second elastic component of the utility model includes a mounting rod 12 rotatably connected to the end of the ball screw screw and an intermediate compression spring 14 sleeved on the connecting sleeve 5; a lower end cover 14 is fixed to the mounting rod 12 using bolts, and a lower push rod 15 is symmetrically arranged on the lower end cover 14 about the center of the mounting rod 12, and the lower push rod 15 is threadedly connected to the lower end cover 14, and a spacer sleeve 16 for transmitting the force of the lower push rod 15 is arranged between the upper end of the lower push rod 15 and the intermediate compression spring 13, and a pressure plate 17 for abutting against the upper end of the intermediate compression spring 13 is arranged in the skateboard body 1.

[0023] When the utility model is in use, the screw of the ball screw 3 is driven to rotate by the servo motor. The servo motor can be directly connected to the ball screw. When the height space is limited, the synchronous belt and the synchronous wheel can be used for driving, so that the nut on the ball screw 3 is displaced up and down, and the connecting sleeve 6 and the connecting sleeve 5 can be displaced up and down together with the nut of the ball screw 3. The shoulder 7 is pressed on the upper pressure cover 4 in the working state. The compression springs 11 on both sides of the upper pressure cover 5 are compressed by the pressure of the upper pressure cover 5, and the thrust is applied to the slide plate body 1. The middle compression spring can be pre-tightened by adjusting the thread at the lower end of the lower push rod 15, so that when the slide plate body is not in the working state, the gravity and acceleration from the slide plate body 1 and its components are compressed and buffered by the middle compression spring 13 when it is stationary and displaced, so that the safety of the structure is further guaranteed and the movement is more stable; when the tail frame is in the non-working state, the shoulder 7 no longer applies pressure to the upper pressure cover 4, and the compression springs 7 on both sides are relaxed to the pre-tightened state.

Claims

1. An elastic tailstock structure for a worm wheel gear grinding machine, characterized in that: The invention comprises a slide plate body (1) slidably arranged on a gear grinding machine and a servo drive mechanism for pushing the slide plate body (1) to slide, the slide plate body (1) being loaded with a Morse taper top (2) for contacting a gear for tightening; the servo drive mechanism comprises a servo motor and a ball screw (3) connected to a driving end of the servo motor, the nut of the ball screw (3) being matched with an upper pressure cover (4) on the slide plate body (1) through a crimping assembly, a first elastic assembly for transmitting pressure of the servo drive mechanism being arranged between the upper pressure cover (4) and the slide plate body (1); the screw of the ball screw (3) is inserted into the slide plate body (1), and a second elastic assembly for balancing the overall gravity of the slide plate body is arranged at the end of the screw of the ball screw.

2. The elastic tailstock structure for a worm wheel gear grinding machine according to claim 1, characterized in that: The crimping assembly comprises a connecting sleeve (5) and a connecting sleeve (6) which are sleeved on the screw rod of the ball screw (3); the connecting sleeve (6) connects the nut of the ball screw (3) and the connecting sleeve (5); and a shaft shoulder (7) for cooperating with the upper pressure cover (4) is provided on the connecting sleeve (5).

3. The elastic tailstock structure for a worm wheel gear grinding machine according to claim 1 or 2, characterized in that: The first elastic component comprises two groups of adjusting screws (8) and spring rods (9) symmetrically arranged about the ball screw, the adjusting screws (8) being fixed on the upper pressure cover (4) and having their lower ends connected to the spring rods (9), a mounting groove (10) for cooperating with the spring rods (9) being provided on the slide body (1), a compression spring (11) being sleeved on the spring rods (9), one end of the compression spring (11) being in contact with the round table of the spring rods (9), and the other end being in contact with the bottom of the mounting groove (10).

4. The elastic tailstock structure for a worm wheel gear grinding machine according to claim 2, characterized in that: The second elastic component comprises a mounting rod (12) rotatably connected to the end of the ball screw and an intermediate compression spring (13) sleeved on the connecting sleeve (5); a lower end cover (14) is fixed to the mounting rod (12) by means of bolts, a lower push rod (15) is symmetrically arranged on the lower end cover (14) about the center of the mounting rod (12), the lower push rod (15) is threadedly connected to the lower end cover (14), a spacer (16) for transmitting the action force of the lower push rod (15) is arranged between the upper end of the lower push rod (15) and the intermediate compression spring (13), and a pressure plate (17) for abutting against the upper end of the intermediate compression spring (13) is arranged in the slide plate body (1).

5. The elastic tailstock structure for a worm wheel gear grinding machine according to claim 1, characterized in that: The slide plate body (1) and the gear grinding machine are connected via a guide rail (18).

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