Workbench for testing hydraulic gear grinding clamp

Abstract

The utility model discloses a working table for testing a hydraulic gear grinding clamp. The working table comprises a supporting seat, a rotating mechanism, an oil receiving disc, a power mechanism and the like, a rotatable rotating mechanism is vertically installed in the middle of the front end of the supporting seat along the interior of a cavity and comprises a main shaft, a main supporting assembly and an auxiliary supporting assembly are arranged on the upper portion and the lower middle portion of the main shaft respectively, and a gland type table top is fixedly installed on the upper end face of the main shaft; the lowermost end is provided with a three-channel rotary joint for rotatably conveying oil and gas media; the outer side of the upper end of the rotating mechanism is fixedly provided with an oil receiving disc used for collecting and storing residual oil of an oil way after the table top clamp is dismounted; and a power mechanism is mounted on one side of the rotating mechanism in the supporting seat cavity and is in transmission connection with the main shaft through a transmission part. The workbench is compact in structure, high in rotation precision, and capable of testing performance such as rotation precision, clamping and loosening effects and the like of various hydraulic gear grinding clamps and detecting air tightness of the hydraulic gear grinding clamps.

Description

TECHNICAL FIELD

[0001] The utility model relates to fixture equipment technical field, especially, relate to a hydraulic gear grinding fixture test work table. BACKGROUND

[0002] The high -efficient gear grinding machine processing efficiency is high, and the gear grinding fixture used is generally high -degree of automation hydraulic fixture, can be positioned clamping to workpiece fast, saves the clamping time. Apparently, the hydraulic gear grinding fixture has become the important component of machine tool, and the precision and reliability are important to gear grinding machine function, performance, are also the important influence factor of gear processing precision and clamping efficiency, therefore, the precision and performance test of hydraulic gear grinding fixture are essential.

[0003] At present, the hydraulic gear grinding fixture test work table has no standard product on the market, although some fixture manufacturing enterprises have developed test platform, but along with the development of gear grinding machine technology and the continuous change of machine tool processing specification range, the original test platform presents the interface old, the table bearing is small, the rotation precision is not high, the function is not complete, causes the range of applicable fixture is few, already can not satisfy the present hydraulic gear grinding fixture detection demand. For this reason, it is necessary to research and develop a kind of hydraulic gear grinding fixture test work table with simple structure, easy operation can simulate gear grinding machine worktable and has corresponding function. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned defects or deficiencies, the utility model aims at providing a hydraulic gear grinding fixture test work table.

[0005] To achieve the above object, the technical scheme of the utility model is:

[0006] A kind of hydraulic gear grinding fixture test work table, it include: support seat, rotatable rotating mechanism is vertically installed on the support seat, power mechanism is connected on the rotating mechanism, the rotating mechanism includes: main shaft, the upper part of the main shaft is provided with main support component for installing main shaft, the lower part of the main shaft is installed with auxiliary support component, the auxiliary support component is connected with main support component;The upper end surface of the main shaft is installed with gland type table top, the lower end of the main shaft is installed with conversion joint, the lower end of the conversion joint is installed with three-way rotary joint of rotating transmission oil, gas medium;The power mechanism is connected with the main shaft by transmission component.

[0007] The upper end outside of the rotating mechanism is fixedly provided with oil collecting disc for collecting and storing oil way residual oil after table clamp dismounting.

[0008] The main support assembly comprises an upper bearing sleeve fixed on the support base, a main shaft bearing is installed in the upper bearing sleeve, an outer ring pressing cover for pressing the outer ring of the main shaft bearing is installed on the upper end of the main shaft bearing, adjusting shims for adjusting the load of the bearing and the rotation accuracy of the main shaft are installed on the upper end of the main shaft bearing, and the adjusting shims are pressed by the cover-type table surface.

[0009] The auxiliary support assembly comprises a lower bearing sleeve fixed on the lower end of the upper bearing sleeve, an angular contact ball bearing is installed in the lower bearing sleeve, an inner ring pressing cover and a sealing cover are installed on the lower end of the angular contact ball bearing from inside to outside.

[0010] The rotary joint is a three-channel rotary joint, a blowing gas channel is connected with the first interface of the rotary joint, a clamping oil channel is connected with the second interface of the rotary joint, a loosening oil channel is connected with the third interface of the rotary joint, the blowing gas channel, the clamping oil channel and the loosening oil channel all penetrate through the conversion joint, the main shaft and the cover-type table surface, and are communicated to the upper surface of the cover-type table surface; wherein the first interface, the second interface and the third interface are equally distributed at an angle of 120°.

[0011] The power mechanism comprises a motor support fixed on one side of the inner cavity of the support base, a motor mounting plate is installed on the motor support, a motor is installed on the motor mounting plate, a transmission component is installed on the output shaft of the motor, and the transmission component is in transmission connection with the main shaft.

[0012] The transmission component comprises a driving synchronous pulley installed on the output shaft of the motor and a driven synchronous pulley installed on the lower end of the auxiliary support of the main shaft, and the driving synchronous pulley and the driven synchronous pulley are connected through a synchronous belt.

[0013] A synchronous belt tensioning device is arranged on the transmission component, the synchronous belt tensioning device comprises a fixing block fixed on one side of the upper end surface of the motor support, a screw is installed on one side of the fixing block in a penetrating manner, and the screw is in threaded connection with the motor mounting plate; when the screw is rotated, the motor mounting plate, the motor installed thereon, and the driving synchronous pulley move away from or close to the driven synchronous pulley along the long direction of the waist-shaped hole.

[0014] A cover is fixedly installed on the outer shoulder surface of the cover-type table surface, and a cover shell fixed on the support base is installed on the outer side of the rotating mechanism.

[0015] Horizontal mounting ports for horizontally placing motors in cavities, vertical mounting ports for vertically placing motors in cavities, and rotary joint pipeline mounting ports are further arranged on the support base, and an installation area for simulating a gear grinding machine column tailstock is reserved at the middle part of the rear end of the support base.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] This utility model provides a test table for a hydraulic gear grinding fixture. By setting a rotating mechanism with main and auxiliary supports and using a group of high-precision bearings, the geometric accuracy of the spindle table surface is effectively improved. It has high rotational accuracy and large load-bearing capacity. The radial and end face runout of the table surface is less than 0.002mm, and the load capacity is 600Kg. The double labyrinth seal structure with self-sealing bearings and labyrinth seals at the upper and lower ends of the main and auxiliary supports effectively prevents the high-precision bearings from being contaminated, maintains a clean working environment, thereby improving the bearing life and ensuring the smooth operation of the rotating mechanism.

[0018] This invention features clamping oil circuits, releasing oil circuits, and blowing air circuits on the worktable, which can effectively simulate the worktable interface dimensions and corresponding functions of at least four common gear grinding machines. It can test the clamping and releasing effects of the fixture and perform airtightness testing. Alternatively, it can connect to the pre-drilled screw holes on the worktable by making conversion discs with other interfaces to meet the experimental testing needs of various hydraulic gear grinding fixtures. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the workbench structure for testing the hydraulic gear grinding fixture of this utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the test table for the hydraulic gear grinding fixture of this utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of section A in the middle;

[0022] Figure 4 This is a three-dimensional schematic diagram of the rotating mechanism and the power mechanism of this utility model.

[0023] In the diagram, 1—support base; 2—main shaft; 3—pressure cover type platform; 4—upper bearing sleeve; 5—main shaft bearing; 6—outer ring pressure cover; 7—adjusting shim; 8—lower bearing sleeve; 9—angular contact ball bearing; 10—inner ring pressure cover; 11—sealing cover; 12—converter joint; 13—rotary joint; 14—protective cover; 15—oil tray; 16—cover; 17—motor bracket; 18—motor mounting plate; 19—motor; 20—driving synchronous pulley; 21—synchronous belt; 22—driven synchronous pulley; 23—screw; 24—fixing block; 25—rotating mechanism; 26—power mechanism; 1-1—horizontal mounting port; 1-2—vertical mounting port; 1-3—rotary joint pipeline mounting port; 1-4—installation area. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0025] like Figure 1 , 2 As shown, this utility model provides a test bench for a hydraulic gear grinding fixture, including: a support base 1, on which a rotatable rotating mechanism 25 is vertically mounted, and a power mechanism 26 is connected to the rotating mechanism 25. Specifically, the rotating mechanism 25 includes: a spindle 2, with a main support assembly for mounting the spindle 2 on its upper part, and an auxiliary support assembly mounted on the lower part of the spindle 2, the auxiliary support assembly being connected to the main support assembly; a pressure-cap type table 3 is mounted on the upper end face of the spindle 2, and a conversion joint 12 is mounted on the lower end of the spindle 2, with a three-channel rotary joint 13 for rotating and transmitting oil and gas media mounted on the lower end of the conversion joint 12; the power mechanism 26 is connected to the spindle 2 via a transmission component.

[0026] Preferably, in this utility model, an oil receiving tray 15 for collecting residual oil in the oil circuit after the removal of the storage table clamp is fixedly provided on the outer side of the upper end of the rotating mechanism 25; for example, the oil receiving tray 15 is fixedly installed on the main support assembly.

[0027] Furthermore, the main support assembly includes: an upper bearing sleeve 4 fixed on the support base 1, a set of four high-precision self-lubricating sealed spindle bearings 5 ​​installed inside the upper bearing sleeve 4, an outer ring cover 6 for pressing the outer ring and an adjusting shim 7 for adjusting the bearing load and spindle rotation accuracy are installed sequentially from the outside to the inside on the upper end of the spindle bearing 5, the adjusting shim 7 is pressed by the cover-type platform 3, the cover-type platform 3 and the outer ring cover 6 also have a sealing function in the structural design, the two together form a first labyrinth seal, the labyrinth seal is provided with a number of annular sealing teeth arranged in sequence around the rotating shaft, a series of intercepting gaps and expansion cavities are formed between the teeth, the sealed medium generates a throttling effect when passing through the gaps of the tortuous labyrinth to achieve the purpose of preventing leakage.

[0028] The auxiliary support assembly includes: a lower bearing sleeve 8 fixed to the lower end of the upper bearing sleeve 4, and a set of two high-precision self-lubricating and sealing angular contact ball bearings 9 installed inside the lower bearing sleeve 8. An inner ring cover 10 and a sealing cover 11 are installed sequentially from the inside to the outside at the lower end of the angular contact ball bearings 9. The inner ring cover 10 and the sealing cover 11 are combined to form a second labyrinth seal. It should be noted that the auxiliary support only provides radial support and is not axially limited.

[0029] In this invention, a conversion joint 12 is installed on the lower end face of the main spindle 2. A three-channel rotary joint 13 for rotating and transmitting oil and gas media is installed at the lower end of the conversion joint 12. The rotary joint 13 is a three-channel rotary joint. The first interface of the rotary joint 13 is connected to an air blowing path, the second interface is connected to a clamping oil path, and the third interface is connected to a releasing oil path. The air blowing path, the clamping oil path, and the releasing oil path all pass through the conversion joint 12, the main spindle 2, and the pressure plate 3, and are connected to the upper surface of the pressure plate 3. The first interface, the second interface, and the third interface are evenly distributed at 120°, realizing the clamping, releasing, and central air blowing functions of the fixture on the workpiece.

[0030] Furthermore, such as Figure 3 As shown, a cover 14 is fixedly installed on the outer shoulder surface of the pressure-type table 3. The cover 14 can guide the residual oil in the oil circuit after the table clamp is removed to the oil receiving tray 15 for collection and storage. The oil receiving tray 15 is located on the outer side of the upper end of the rotating mechanism 25 and is fixedly installed on the shoulder surface of the upper bearing sleeve 4. In addition, a cover 16 fixed on the support base 1 is installed on the outer side of the rotating mechanism 25.

[0031] like Figure 4 As shown, the power mechanism 26 of this utility model includes: a motor bracket 17 fixed to one side of the inner cavity of the support base 1, a motor mounting plate 18 mounted on the motor bracket 17, a motor 19 mounted on the motor mounting plate 18, a transmission component mounted on the output shaft of the motor 19, and the transmission component being connected to the main shaft 2 in a transmission manner.

[0032] For example, the transmission component includes: a driving synchronous pulley 20 mounted on the output shaft of the motor 19 and a driven synchronous pulley 22 mounted on the lower end of the auxiliary support of the main shaft 2, wherein the driving synchronous pulley 20 and the driven synchronous pulley 22 are connected by a synchronous belt 21.

[0033] Furthermore, a synchronous belt tensioning device can be provided in the transmission component. The synchronous belt tensioning device includes a fixing block 24 fixed to one side of the upper end face of the motor bracket 17. A screw 23 is installed through one side of the fixing block 24. The screw 23 is threadedly connected to the motor mounting plate 18. The fixing screw of the motor mounting plate 18 is designed with a 20mm long oblong hole. When the screw 23 is rotated, the motor mounting plate 18 and the motor 19 and the driving synchronous pulley 20 mounted on it move away from or closer to the driven synchronous pulley 22 along the long direction of the oblong hole, thereby tightening or loosening the synchronous belt.

[0034] Preferably, the support base 1 is also provided with a horizontal mounting port 1-1 for the motor 19 to be placed horizontally into the cavity, a vertical mounting port 1-2 for the motor 19 to be placed vertically into the cavity, and a rotary joint pipe mounting port 1-3; the middle part of the rear end of the support base 1 is also reserved with an installation area 1-4 for the simulated gear grinding machine column tail frame.

[0035] The working process of this utility model is as follows:

[0036] When performing simulated gear grinding machine workpiece table testing, the air blowing path of the first interface on the pressure-type table 3 is ventilated to perform air tightness testing; when the clamping oil path of the second interface is ventilated, the fixture clamps the workpiece; when the loosening oil path of the third interface is ventilated, the fixture loosens the workpiece, and the clamping and loosening performance of the fixture can be tested; when the power mechanism 26 drives the rotating mechanism 25 to rotate, the rotational accuracy can be tested.

[0037] The worktable of this utility model has a compact structure and high rotational accuracy, and can test the rotational accuracy, clamping and loosening effect and airtightness of various hydraulic gear grinding fixtures.

[0038] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of this utility model. Therefore, any improvements or modifications that those skilled in the art may make to certain parts of this utility model still embody the principles of this utility model and achieve its purpose, and all fall within the scope of protection of this utility model.

Claims

1. A test bench for a hydraulic gear grinding fixture, characterized in that, include: A support base (1) is provided, on which a rotatable rotating mechanism (25) is vertically mounted. A power mechanism (26) is connected to the rotating mechanism (25). The rotating mechanism (25) includes: a main shaft (2), on which a main support assembly for mounting the main shaft (2) is provided at the upper part, and an auxiliary support assembly is provided at the lower part of the main shaft (2). The auxiliary support assembly is connected to the main support assembly. A pressure-type table (3) is installed on the upper end face of the main shaft (2), and a conversion joint (12) is installed at the lower end of the main shaft (2). A rotary joint (13) for rotating and transmitting oil and gas media is installed at the lower end of the conversion joint (12). The power mechanism (26) is connected to the main shaft (2) through a transmission component.

2. The test bench for the hydraulic gear grinding fixture according to claim 1, characterized in that, An oil receiving tray (15) is fixedly installed on the outer side of the upper end of the rotating mechanism (25) for collecting residual oil in the oil circuit after the removal of the storage table fixture.

3. The test table for the hydraulic gear grinding fixture according to claim 1 or 2, characterized in that, The main support assembly includes: an upper bearing sleeve (4) fixed on the support base (1), a main shaft bearing (5) installed inside the upper bearing sleeve (4), and an outer ring cover (6) for pressing the outer ring and an adjusting shim (7) for adjusting the bearing load and the rotation accuracy of the main shaft are installed sequentially from the outside to the inside on the upper end of the main shaft bearing (5). The adjusting shim (7) is pressed by the cover-type platform (3).

4. The test table for the hydraulic gear grinding fixture according to claim 3, characterized in that, The auxiliary support assembly includes: a lower bearing sleeve (8) fixed to the lower end of the upper bearing sleeve (4), an angular contact ball bearing (9) installed inside the lower bearing sleeve (8), and an inner ring cap (10) and a sealing cap (11) installed sequentially from the inside to the outside at the lower end of the angular contact ball bearing (9).

5. The test table for the hydraulic gear grinding fixture according to claim 1 or 2, characterized in that, The rotary joint (13) is a three-channel rotary joint. The first interface of the rotary joint (13) is connected to the air blowing path, the second interface is connected to the clamping oil path, and the third interface is connected to the release oil path. Furthermore, the air blowing path, the clamping oil path, and the release oil path all pass through the conversion joint (12), the main shaft (2), and the pressure plate (3), and are connected to the upper surface of the pressure plate (3). The first interface, the second interface, and the third interface are evenly distributed at 120°.

6. The test table for the hydraulic gear grinding fixture according to claim 1, characterized in that, The power mechanism (26) includes: a motor bracket (17) fixed to one side of the inner cavity of the support base (1), a motor mounting plate (18) mounted on the motor bracket (17), a motor (19) mounted on the motor mounting plate (18), a transmission component mounted on the output shaft of the motor (19), and the transmission component being connected to the main shaft (2) in a transmission manner.

7. The test bench for the hydraulic gear grinding fixture according to claim 6, characterized in that, The transmission components include: a driving synchronous pulley (20) mounted on the output shaft of the motor (19) and a driven synchronous pulley (22) mounted on the main shaft (2) to support the lower end. The driving synchronous pulley (20) and the driven synchronous pulley (22) are connected by a synchronous belt (21).

8. The test table for the hydraulic gear grinding fixture according to claim 7, characterized in that, The transmission component is provided with a synchronous belt tensioning device, which includes a fixing block (24) fixed to one side of the upper end face of the motor bracket (17). A screw (23) is installed through one side of the fixing block (24). The screw (23) is connected to the motor mounting plate (18) by a thread. When the screw (23) is rotated, the motor mounting plate (18) and the motor (19) and the driving synchronous pulley (20) mounted on it move away from or closer to the driven synchronous pulley (22) along the length of the waist-shaped hole.

9. The test table for the hydraulic gear grinding fixture according to claim 1, characterized in that, The outer shoulder of the pressure-type platform (3) is fixedly fitted with a cover (14); the outer side of the rotating mechanism (25) is fitted with a cover (16) fixed to the support base (1).

10. The test table for the hydraulic gear grinding fixture according to claim 1, characterized in that, The support base (1) is also provided with a horizontal mounting port (1-1) for horizontally inserting the motor (19) into the cavity, a vertical mounting port (1-2) for vertically inserting the motor (19) into the cavity, and a rotary joint pipeline mounting port (1-3); the middle part of the rear end of the support base (1) is reserved with an installation area (1-4) for the simulated gear grinding machine column tail frame.

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