Internal grinding machine fixture

Abstract

The present invention discloses an internal cylindrical grinder fixture, comprising a fixed plate, a clamping assembly, a driving assembly and a pushing assembly; four slide rails are cross-arranged on the fixed plate; the clamping assembly comprises a support plate, a base rod, a telescopic rod, a fixed block, a stopper and an elastic member; the driving assembly comprises an inclined wedge fixed block, an inclined wedge push block and a push rod; the inclined wedge fixed block is fixedly connected to the support plate, and the inclined wedge fixed block is slidably connected to the slide rail; the inclined wedge push block is slidably connected to the slide rail, and the inclined wedge push block is opposite to the inclined wedge surface of the inclined wedge fixed block; the push rod is fixedly connected to the inclined wedge push block; the pushing assembly comprises a hydraulic telescopic rod and a push seat; the hydraulic telescopic rod is arranged at the center of the fixed plate; the push seat is connected to the hydraulic telescopic rod. The present invention can realize the clamping and fixing of gears of various sizes, and is simple to operate, with high positioning accuracy and stable positioning.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical fixtures, and more particularly to a fixture for an internal grinding machine. Background Art

[0002] At present, in production practice, the workpiece is generally installed on the three-jaw chuck of the machine tool and clamped, and the inner hole and end face runout of the gear are corrected and then the inner hole is ground. This fixing method can achieve a simple and fast fixing effect.

[0003] However, the disadvantage of this is that the operation is cumbersome, because the gears are deformed after heat treatment, the accuracy depends entirely on the operator's correction level, and gear runout can easily cause failure.

[0004] Therefore, how to provide an internal cylindrical grinding machine fixture that can ensure high stability of parts after being fixed and can be quickly fixed is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides an internal grinding machine fixture, which can realize the clamping and fixing of gears of various sizes, and has simple operation, high positioning accuracy and stable positioning.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] An internal grinding machine fixture comprises a fixed plate, a clamping assembly, a driving assembly and a pushing assembly;

[0008] Four slide rails are cross-arranged on the fixed plate;

[0009] The clamping assembly comprises a support plate, a base rod, a telescopic rod, a fixed block, a stopper and an elastic member; the support plate is fixed on the fixed disk and is located at the end of each slide rail close to the center of the fixed disk; one end of the base rod is slidably connected to the slide rail, and the other end is sleeved with the telescopic rod; the fixed blocks are respectively arranged at the end of the base rod close to the telescopic rod and the end of the telescopic rod away from the base rod; the stopper is arranged on the fixed block; the elastic member is arranged between the base rod and the support plate;

[0010] The driving assembly includes an inclined wedge fixing block, an inclined wedge pushing block and a push rod; the inclined wedge fixing block is fixedly connected to the support plate, and the inclined wedge fixing block is slidably connected to the slide rail; the inclined wedge pushing block is slidably connected to the slide rail, and the inclined wedge pushing block is opposite to the inclined wedge surface of the inclined wedge fixing block; the push rod is fixedly connected to the inclined wedge pushing block;

[0011] The pushing assembly comprises a hydraulic telescopic rod and a pushing seat; the hydraulic telescopic rod is arranged at the center of the fixed plate; and the pushing seat is connected to the hydraulic telescopic rod.

[0012] Through the above technical scheme, the present invention can realize rapid clamping of the circumferential surface of the gear through the cooperation of the telescopic rod, and can adapt to gears of different diameters through the cooperation of the inclined wedge drive and the elastic member; the gear end face is squeezed by the pushing seat, so as to further improve the stability of the gear fixation. The present invention has a simple structure, is easy to operate, and has high fixing accuracy and good fixing effect.

[0013] Preferably, in the above-mentioned internal grinding machine fixture, the connecting end of the base rod and the telescopic rod is driven by a hydraulic system, which can improve the stability of the movement.

[0014] Preferably, in the above-mentioned internal grinding machine fixture, a hard rubber block is arranged between the fixed block and the stop block, which can not only improve the clamping force on the gear, but also prevent hard damage to the gear.

[0015] Preferably, in the above-mentioned internal grinding machine fixture, the elastic member is a nitrogen spring. The nitrogen spring is a spring specially used for molds, and has the beneficial effects of small size, large elastic force, long stroke, stable operation, precise manufacturing, long service life, and a gentle elastic curve.

[0016] Preferably, in the above-mentioned internal grinding machine fixture, a plurality of elastic members are arranged between each base rod and the support plate, so as to further improve the stability of the elastic effect.

[0017] Preferably, in the above-mentioned internal grinding machine fixture, the push seat is provided with multiple layers of hard rubber rings, which can not only increase the pressing force on the gear, but also prevent hard damage to the gear.

[0018] Preferably, in the above-mentioned internal grinding machine fixture, the push rod is pushed by a hydraulic system, which can improve the stability of the movement.

[0019] It can be seen from the above technical solution that, compared with the prior art, the present invention discloses an internal grinding machine fixture, which has the following beneficial effects:

[0020] 1. The present invention can realize rapid clamping of the circumferential surface of the gear through the cooperation of the telescopic rod, and can adapt to gears of different diameters through the cooperation of the inclined wedge drive and the elastic member; the gear end face is squeezed by the push seat, so as to further improve the stability of the gear fixation. The present invention has a simple structure, is easy to operate, has high fixing accuracy and good fixing effect.

[0021] 2. The present invention adopts a fastening method of clamping the circumferential edge of the gear and tightening one end face of the gear, which has a stronger stabilizing effect.

[0022] 3. The present invention adopts hydraulic drive and wedge drive, which has stronger driving stability and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 The accompanying drawing is a front view of the overall structure provided by the present invention;

[0025] Figure 2 The accompanying drawing is a right side view of the overall structure provided by the present invention.

[0026] in:

[0027] 1 is a fixed plate, 11 is a slide rail, 2 is a clamping assembly, 21 is a support plate, 22 is a base rod, 23 is a telescopic rod, 24 is a fixed block, 25 is a stopper, 26 is an elastic member, 27 is a hard rubber block, 3 is a driving assembly, 31 is an inclined wedge fixed block, 32 is an inclined wedge pushing block, 33 is a push rod, 4 is a pushing assembly, 41 is a hydraulic telescopic rod, 42 is a pushing seat, and 43 is a hard rubber ring. DETAILED DESCRIPTION

[0028] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0029] See attached Figure 1 To Attachment Figure 2 , the embodiment of the present invention discloses an internal grinding machine fixture, including a fixed plate 1, a clamping assembly 2, a driving assembly 3 and a pushing assembly 4;

[0030] Four slide rails 11 are cross-arranged on the fixed plate 1;

[0031] The clamping assembly 2 includes a support plate 21, a base rod 22, a telescopic rod 23, a fixed block 24, a stopper 25 and an elastic member 26; the support plate 21 is fixed on the fixed disk 1 and is located at the end of each slide rail 11 close to the center of the fixed disk 1; one end of the base rod 22 is slidably connected to the slide rail 11, and the other end is sleeved with the telescopic rod 23; the fixed blocks 24 are respectively arranged at the end of the base rod 22 close to the telescopic rod 23 and the end of the telescopic rod 23 away from the base rod 22; the stopper 25 is arranged on the fixed block 24; the elastic member 26 is arranged between the base rod 22 and the support plate 21;

[0032] The driving assembly 3 includes an inclined wedge fixing block 31, an inclined wedge pushing block 32 and a push rod 33; the inclined wedge fixing block 31 is fixedly connected to the support plate 21, and the inclined wedge fixing block 31 is slidably connected to the slide rail 11; the inclined wedge pushing block 32 is slidably connected to the slide rail 11, and the inclined wedge pushing block 32 is opposite to the inclined wedge surface of the inclined wedge fixing block 31; the push rod 33 is fixedly connected to the inclined wedge pushing block 32;

[0033] The pushing assembly 4 includes a hydraulic telescopic rod 41 and a pushing seat 42 ; the hydraulic telescopic rod 41 is arranged at the center of the fixing plate 1 ; and the pushing seat 42 is connected to the hydraulic telescopic rod 41 .

[0034] In order to further optimize the above technical solution, the connecting ends of the base rod 22 and the telescopic rod 23 are driven by a hydraulic system.

[0035] In order to further optimize the above technical solution, a hard rubber block 27 is provided between the fixing block 24 and the stop block 25 .

[0036] In order to further optimize the above technical solution, the elastic member 26 is a nitrogen spring.

[0037] In order to further optimize the above technical solution, a plurality of elastic members 26 are arranged between each base rod 22 and the support plate 21 .

[0038] In order to further optimize the above technical solution, multiple layers of hard rubber rings 43 are provided on the pushing seat 42 .

[0039] In order to further optimize the above technical solution, the push rod 33 is pushed by a hydraulic system.

[0040] The method of use of the present invention is:

[0041] The gear is placed between the two fixed blocks 24 of each set of clamping assemblies 2, and the push rod 33 is driven to run. The push rod 33 pushes the inclined wedge pushing block 32 to move, and the inclined wedge pushing block 32 pushes the inclined wedge fixing block 31 to move, that is, the four groups of base rods 22 compress the elastic member 26 and move toward the center of the fixed disk 1 at the same time. When the stop block 25 contacts the edge of the gear, the movement of the push rod 33 is stopped.

[0042] The telescopic rod 23 is driven to move toward the base rod 22, and the four groups of fixing blocks 24 clamp the edge of the gear at the same time. When the two fixing blocks 24 of each group clamp the two end faces of the gear, the movement of the telescopic rod 23 is stopped.

[0043] The hydraulic telescopic rod 41 is driven to drive the push seat 42 to move toward the end face of the gear. When the hard rubber ring 43 is fixedly abutted against the end face of the gear, the movement of the hydraulic telescopic rod 41 is stopped to complete the fixing of the gear.

[0044] When disassembly is required, just perform the above actions in reverse.

[0045] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0046] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An internal grinding machine fixture, characterized in that: It comprises a fixing plate (1), a clamping assembly (2), a driving assembly (3) and a pushing assembly (4); Four slide rails (11) are cross-arranged on the fixed plate (1); The clamping assembly (2) comprises a support plate (21), a base rod (22), a telescopic rod (23), a fixed block (24), a stopper (25) and an elastic member (26); the support plate (21) is fixed on the fixed disk (1) and is located at the end of each slide rail (11) close to the center of the fixed disk (1); one end of the base rod (22) is slidably connected to the slide rail (11), and the other end is sleeved with the telescopic rod (23); the fixed block (24) is respectively arranged at the end of the base rod (22) close to the telescopic rod (23) and the end of the telescopic rod (23) away from the base rod (22); the stopper (25) is arranged on the fixed block (24); the elastic member (26) is arranged between the base rod (22) and the support plate (21); The driving assembly (3) comprises an inclined wedge fixing block (31), an inclined wedge pushing block (32) and a push rod (33); the inclined wedge fixing block (31) is fixedly connected to the support plate (21), and the inclined wedge fixing block (31) is slidably connected to the slide rail (11); the inclined wedge pushing block (32) is slidably connected to the slide rail (11), and the inclined wedge pushing block (32) and the inclined wedge surface of the inclined wedge fixing block (31) are opposite; the push rod (33) is fixedly connected to the inclined wedge pushing block (32); The pushing assembly (4) comprises a hydraulic telescopic rod (41) and a pushing seat (42); the hydraulic telescopic rod (41) is arranged at the center of the fixed plate (1); the pushing seat (42) is connected to the hydraulic telescopic rod (41); The pushing seat (42) is provided with multiple layers of hard rubber rings (43); The push rod (33) is pushed by a hydraulic system.

2. The internal grinding machine fixture according to claim 1, characterized in that: The connecting ends of the base rod (22) and the telescopic rod (23) are driven by a hydraulic system.

3. The internal grinding machine fixture according to claim 1, characterized in that: A hard rubber block (27) is provided between the fixing block (24) and the stop block (25).

4. The internal grinding machine fixture according to claim 1, characterized in that: The elastic member (26) is a nitrogen spring.

5. An internal grinding machine fixture according to claim 1 or 4, characterized in that: A plurality of elastic members (26) are arranged between each base rod (22) and the support plate (21).

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