Center hole grinding machine for gear machining

Abstract

The utility model relates to the technical field of gear machining, and discloses a center hole grinding machine for gear machining, which comprises a base, a moving seat and a lifting seat, the whole base is of a square structure, the upper part of the base is provided with a sliding chute, and the moving seat is arranged at the upper part of the sliding chute and moves along the length direction of the sliding chute; a supporting plate is arranged on the upper portion of the movable seat, supporting rods and a fixing plate are arranged on the side face of the supporting plate, the supporting rods are symmetrically arranged, a pressing plate is arranged on the lower portion of the fixing plate, and a pressing block is arranged on the pressing plate; the lifting base is integrally embedded in the base, a machine box is arranged on the upper portion of the lifting base, a driving shaft is arranged on the side, facing the supporting plate, of the machine box, and a grinding head is installed on the driving shaft. According to the grinding machine, gears of different specifications can be clamped and fixed, and the position of the grinding head can be adjusted according to the specification change of the gears so as to meet the production requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, and more specifically, the utility model relates to a center hole grinding machine for gear processing. Background Art

[0002] Gears are an indispensable part of mechanical transmission and are widely used in automobiles, machine tools, and various power transmission systems. The quality of gears directly affects the operating efficiency and noise level of the entire mechanical system, and even determines the performance and reliability of products. The grinding process of the gear center hole is a key step to precisely adjust and improve the machining accuracy of gear shaft parts. In machining, the center hole serves as the positioning reference for shaft parts and plays a decisive role in the machining accuracy of workpieces. Especially in the gear manufacturing process, the accuracy of the center hole directly affects the precise assembly of the gear shaft and the accuracy of gear transmission. Since the previous processes such as heat treatment may cause deformation of the center hole shape and position deviation, the grinding process of the gear center hole is particularly important, which ensures a high-precision machining reference by finely correcting the center hole.

[0003] When performing the grinding process, it is necessary to maintain the stability of the gear. Due to the different specifications of gears, when machining gears of different sizes, it is necessary to frequently operate the fixture to fix the gear, resulting in relatively low processing efficiency. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a center hole grinding machine for gear processing, which has the advantage of more precise operation.

[0005] To achieve the above object, the utility model provides the following technical solution: A center hole grinding machine for gear processing, comprising: a base, a moving seat, and a lifting seat. The base is integrally square-shaped, and a chute is provided on the upper part of the base. The moving seat is installed on the upper part of the chute and moves along the length direction of the chute. A support plate is provided on the upper part of the moving seat, and a support rod and a fixing plate are provided on the side of the support plate. The support rods are symmetrically arranged, and a pressing plate is provided at the lower part of the fixing plate, and a pressing block is provided on the pressing plate. The lifting seat is integrally embedded inside the base, and a machine box is provided on the upper part of the lifting seat. A driving shaft is provided on the side of the machine box facing the support plate, and a grinding head is installed on the driving shaft.

[0006] As a preferred technical solution of the utility model, the length direction of the chute is consistent with the length direction of the base, and the chute is located on the middle plane of the base. A lead screw is installed in the chute, a slider is provided at the lower part of the moving seat, the slider is stuck in the chute, and the slider is sleeved on the lead screw through a threaded hole. The lead screw is driven by a servo motor embedded inside the base.

[0007] As a preferred technical solution of the present utility model, limiting grooves are symmetrically arranged on both sides of the sliding groove, a limiting block is arranged in a matching manner at the lower part of the moving seat, and the limiting block is matched and clamped in the limiting groove.

[0008] As a preferred technical solution of the present utility model, the support rods are symmetrically arranged on both sides of the lower part of the fixed plate. One end of the support rod is connected to the moving seat through a fixing block, and a ring-shaped clamping block is arranged at the other end of the support rod.

[0009] As a preferred technical solution of the present utility model, a sleeve is arranged at the lower part of the fixed plate. An expansion rod is installed in the sleeve through an electric push rod, and the pressing plate is fixedly connected to the expansion rod; the cross section of the pressing block is an arc structure.

[0010] As a preferred technical solution of the present utility model, a reinforcing plate is arranged at the upper part of the fixed plate. The reinforcing plate is of a triangular structure, the reinforcing plate is fixedly connected to the support plate, and multiple reinforcing plates are arranged side by side.

[0011] As a preferred technical solution of the present utility model, a hydraulic rod is arranged in the lifting seat, and the chassis is installed on the hydraulic rod; a grinding motor is arranged in the chassis, and the driving shaft is connected to the output end of the grinding motor.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The grinding machine provided by the present utility model can clamp and fix gears of different specifications, and the position of the grinding head can also be adjusted according to the change of the gear specifications to match the production needs; the overall structure of the device is simple, the design is reasonable, and it is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model Figure 1 ;

[0014] Figure 2 is a schematic structural diagram of the present utility model Figure 2 ;

[0015] Figure 3 is a schematic structural diagram of the moving seat of the present utility model;

[0016] Figure 4 is Figure 1 an enlarged view of the structure at A in

[0017] In the figure: 1. base; 11. slide groove; 12. limit groove; 13. screw rod; 2. movable seat; 21. support plate; 22. fixed block; 23. support rod; 24. clamping block; 25. slider; 26. limit block; 27. thread hole; 3. lifting seat; 31. chassis; 32. drive shaft; 33. grinding head; 4. fixed plate; 41. sleeve; 42. telescopic rod; 43. pressure plate; 44. pressure block; 45. reinforcement plate. DETAILED DESCRIPTION

[0018] 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.

[0019] like Figures 1 to 4 As shown, the utility model provides a center hole grinder for gear processing, comprising: a base 1, a movable base 2 and a lifting base 3, the base 1 is in a square structure as a whole, a slide groove 11 is arranged on the upper part of the base 1, the movable base 2 is installed on the upper part of the slide groove 11, and moves along the length direction of the slide groove 11; a support plate 21 is arranged on the upper part of the movable base 2, a support rod 23 and a fixed plate 4 are arranged on the side of the support plate 21, the support rod 23 is symmetrically arranged, a pressing plate 43 is arranged at the lower part of the fixed plate 4, and a pressing block 44 is arranged on the pressing plate 43; the lifting base 3 is integrally embedded in the base 1, and a chassis 31 is arranged on the upper part of the lifting base 3, a driving shaft 32 is arranged on the side of the chassis 31 facing the support plate 21, and a grinding head 33 is installed on the driving shaft 32.

[0020] The lower part of the gear to be processed is clamped on the symmetrical support rod 23, and the upper part is supported by the pressing block 44 on the pressing plate 43, so that the gear is fixed by three fixed points; then the movable seat 2 is adjusted to move along the slide 11, and the gear is moved toward the lifting seat 3, and the height of the chassis 31 is adjusted to align the grinding head 33 with the center hole position of the gear, so that the grinding head 33 grinds the center hole of the gear. For gears of the same specification, the position of the center hole does not change after being fixed, so it is only necessary to adjust the position of the chassis 31 once.

[0021] Among them, the length direction of the slide groove 11 is consistent with the length direction of the base 1, and the slide groove 11 is located on the middle surface of the base 1; a screw rod 13 is installed in the slide groove 11, and a slider 25 is provided at the lower part of the movable seat 2, the slider 25 is stuck in the slide groove 11, and the slider 25 is fitted on the screw rod 13 through the thread hole 27; the screw rod 13 is driven by a servo motor embedded in the base 1.

[0022] The lead screw 13 driven by the servo motor can cooperate with the threaded hole 27 on the slider 25, so that the moving seat 2 slides along the chute 11, adjusting the position of the moving seat 2, which is convenient for installing gears for processing or replacing new gears to be processed after processing is completed.

[0023] Wherein, limiting grooves 12 are symmetrically arranged on both sides of the chute 11, and limiting blocks 26 are arranged in a matching manner on the lower part of the moving seat 2, and the limiting blocks 26 are engaged and stuck in the limiting grooves 12.

[0024] The lower part of the moving seat 2 is stuck in the limiting groove 12 through the limiting block 26, which can ensure the moving direction of the moving seat 2 and prevent it from deflecting, thereby ensuring the constancy of the moving direction of the gear.

[0025] Wherein, support rods 23 are symmetrically arranged on both sides of the lower part of the fixed plate 4, one end of each support rod 23 is connected to the moving seat 2 through a fixing block 22, and an annular clamping block 24 is arranged at the other end of the support rod 23.

[0026] The fixing block 22 and the clamping block 24 are respectively arranged at both ends of the support rod 23, and these two structures form a sunken annular groove on the support rod 23, which can prevent the gear from slipping off from the front and back sides when the gear is clamped, and is beneficial to maintaining the stability of the gear.

[0027] Wherein, a sleeve 41 is arranged at the lower part of the fixed plate 4, a telescopic rod 42 is installed in the sleeve 41 through an electric push rod, and the pressing plate 43 is fixedly connected to the telescopic rod 42; the cross section of the pressing block 44 is an arc structure.

[0028] The electric push rod presses the telescopic rod 42 to push the pressing plate 43, and the arc-shaped pressing block 44 can easily abut against the gear.

[0029] Wherein, a reinforcing plate 45 is arranged at the upper part of the fixed plate 4, the reinforcing plate 45 is of a triangular structure, the reinforcing plate 45 is fixedly connected to the support plate 21, and multiple reinforcing plates 45 are arranged side by side.

[0030] The arrangement of the reinforcing plate 45 can increase the structural stability between the fixed plate 4 and the support plate 21, thereby extending its service life.

[0031] Wherein, a hydraulic rod is arranged in the lifting seat 3, and the chassis 31 is installed on the hydraulic rod; a grinding motor is arranged in the chassis 31, and the drive shaft 32 is connected to the output end of the grinding motor.

[0032] The height of the chassis 31 is adjusted through the hydraulic rod to meet the calibration process of the center hole, and the drive shaft 32 is driven to rotate by the grinding motor, so that the grinding head 33 performs grinding work; the grinding head 33 can be installed by threads and can be disassembled and replaced.

[0033] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A center hole grinding machine for gear processing, characterized in that: The invention comprises: a base (1), a movable base (2) and a lifting base (3); the base (1) is in a square structure as a whole; a slide groove (11) is arranged on the upper part of the base (1); the movable base (2) is installed on the upper part of the slide groove (11) and moves along the length direction of the slide groove (11); a support plate (21) is arranged on the upper part of the movable base (2); a support rod (23) and a fixed plate (4) are arranged on the side of the support plate (21); the support rod (23) is symmetrically arranged; a pressure plate (43) is arranged at the lower part of the fixed plate (4); a pressure block (44) is arranged on the pressure plate (43); the lifting base (3) is integrally embedded in the base (1); a machine box (31) is arranged on the upper part of the lifting base (3); a driving shaft (32) is arranged on the side of the machine box (31) facing the supporting plate (21); a grinding head (33) is installed on the driving shaft (32).

2. A center hole grinding machine for gear processing according to claim 1, characterized in that: The length direction of the slide groove (11) is consistent with the length direction of the base (1), and the slide groove (11) is located on the middle surface of the base (1); a screw rod (13) is installed in the slide groove (11), and a slider (25) is arranged at the lower part of the movable seat (2), the slider (25) is stuck in the slide groove (11), and the slider (25) is fitted on the screw rod (13) through a thread hole (27); the screw rod (13) is driven by a servo motor embedded in the base (1).

3. The center hole grinding machine for gear processing according to claim 1, characterized in that: The two sides of the slide groove (11) are symmetrically provided with limiting grooves (12), and the lower part of the movable seat (2) is matched with a limiting block (26), and the limiting block (26) is matched and clamped in the limiting groove (12).

4. The center hole grinding machine for gear processing according to claim 1, characterized in that: The support rod (23) is symmetrically arranged on both sides of the lower part of the fixed plate (4); one end of the support rod (23) is connected to the movable seat (2) through a fixed block (22); and the other end of the support rod (23) is provided with an annular clamping block (24).

5. The center hole grinding machine for gear machining according to claim 1, characterized in that: A sleeve (41) is provided at the lower part of the fixing plate (4), a telescopic rod (42) is installed in the sleeve (41) via an electric push rod, and the pressing plate (43) is fixedly connected to the telescopic rod (42); the cross section of the pressing block (44) is an arc-shaped structure.

6. The center hole grinding machine for gear processing according to claim 1, characterized in that: A reinforcing plate (45) is arranged on the upper part of the fixing plate (4). The reinforcing plate (45) is a triangular structure. The reinforcing plate (45) is fixedly connected to the supporting plate (21), and a plurality of reinforcing plates (45) are arranged side by side.

7. The center hole grinding machine for gear machining according to claim 1, characterized in that: A hydraulic rod is arranged in the lifting seat (3), and the machine box (31) is mounted on the hydraulic rod; a grinding motor is arranged in the machine box (31), and the driving shaft (32) is connected to the output end of the grinding motor.

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