Main shaft performance test bench

Abstract

The utility model provides a main shaft performance test bench. The test bench comprises a bench surface; the base is tightly attached to the bottom of the table top; the ball cup is connected with the base and the ground; wherein the ball cup comprises an anchor bolt which is vertically planted on the ground and penetrates through the threaded hole of the base; the ball head wraps the anchor bolt and is tightly attached to the ground; the ball socket is arranged in the axial direction of the top surface of the ball head; the universal knot is embedded into the ball socket and wraps the anchor bolt; and the locking screw penetrates through the anchor bolt and is screwed into the threaded hole of the base. According to the main shaft performance test bed, the base and the table top are leveled through the ball cup, the base is preliminarily positioned through the anchor bolts which are pre-buried in the ground and located at the vertical position, and the base and the table top are located at the horizontal position through the ball and the universal joint installed at the position of the ball socket at the top of the ball; local height of the base can be adjusted through rotation of the locking bolt, whether the adjusted height is reasonable or not is judged through the gradienter, and finally the base is kept horizontal.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of main shaft test bench, especially to a main shaft performance test bench. BACKGROUND

[0002] The main shaft performance test bench is a test platform specially designed for evaluating the performance of the main shaft, which can accurately measure various performance indicators of the main shaft under different working conditions, such as speed, torque, power, vibration, noise and thermal stability, so as to ensure that the main shaft can meet the expected performance standards, and is a benchmark for evaluating the quality and performance of the main shaft product, and is also one of the key technologies for ensuring the machining accuracy and efficiency.

[0003] When testing the speed, vibration and noise of the main shaft, it is necessary to ensure that the test bench is stable.

[0004] On the one hand, before installing the main shaft on the test bench, it is necessary to ensure that the test bench is stably installed on the ground, but the unevenness of the ground increases the difficulty of installing the test bench.

[0005] On the other hand, after installing the main shaft on the test bench, since the center of gravity of the main shaft and the center of gravity of the test bench cannot coincide, the main shaft with heavy weight will amplify the shaking problem of the installation bench caused by the unevenness of the ground when rotating.

[0006] In order to solve the above problems, the test bench is often designed to be heavy, relying on the gravity of the test bench itself to reduce the shaking of the test bench caused by the rotation of the main shaft, but the heavy test bench causes inconvenience during transportation. UTILITY MODEL CONTENTS

[0007] The utility model aims at solving the problem that the unevenness of the ground causes the test bench to shake when testing the performance of the main shaft, thereby affecting the performance test result.

[0008] In order to achieve the above purpose, the utility model provides a main shaft performance test bench, which comprises a table top, a base closely arranged at the bottom of the table top, and a ball head seat connecting the base and the ground, wherein the ball head seat comprises an anchor bolt vertically planted in the ground and penetrating a threaded hole of the base, a ball head covering the anchor bolt and closely arranged on the ground, a ball socket arranged axially on the top surface of the ball head, a universal joint embedded in the ball socket and covering the anchor bolt, and a locking nut penetrating the anchor bolt and screwed into the threaded hole of the base.

[0009] The main shaft performance test bench of the application finds the base and the table top through the ball head seat, wherein the anchor bolt embedded in the ground and in the vertical position preliminarily positions the base, the ball head and the universal joint installed at the top of the ball head make the base and the table top in the horizontal position, one end of the locking bolt is in contact with the top surface of the ball head through the universal joint, the other end is placed in the hollow cavity of the base through the threaded hole on the base, by rotating the locking bolt, the height of the local base can be adjusted, then the level is used to determine whether the height is reasonable, finally the base is kept horizontal, avoiding the uneven ground to make the test bench shake when testing the performance of the main shaft, thereby affecting the performance test result.

[0010] Further, in order to realize the preliminary leveling and subsequent fine adjustment, the ball head seat comprises: positioning ball head seats arranged at the four corners of the base and adjusting ball head seats arranged at the bottom of the base on opposite sides.

[0011] Further, in order to make the main shaft installation more stable, the top of the table top is provided with a support frame, wherein opposite sides of the top end of the support frame are provided with V-shaped support parts and U-shaped support parts, and support pads are arranged on the two end faces of the V-shaped support parts.

[0012] Further, in order to make the installation of the main shaft more stable and reduce the shaking during operation, a limiting frame is arranged at the top of the V-shaped support part, wherein the limiting frame comprises: an open U-shaped beam facing the support frame, the U-shaped beam comprises: a top beam facing the V-shaped support part and side beams arranged on both sides of the top beam; and inclined beams symmetrically arranged between the top beam and the side beams.

[0013] Further, in order to make the installation of the main shaft of different diameters more stable, adjusting pads are arranged on the end faces close to the main shaft of the inclined beams.

[0014] Further, in order to realize the fixed installation of the support frame and the limiting frame, screw holes are arranged at the positions where the support frame and the limiting frame are connected, and the support frame and the limiting frame are connected by screwing the bolts into the screw holes.

[0015] Further, in order to make the pads more wear-resistant, the adjusting pads and the support pads are made of nylon.

[0016] The application has the following beneficial effects:

[0017] 1.The main shaft performance test bench of the application, the ball head seat is used to level the base and the table top, the anchor bolt embedded in the ground and in the vertical position is used to preliminarily position the base, the ball head and the universal joint installed at the top of the ball head are used to make the base and the table top in the horizontal position, one end of the locking bolt is in contact with the top surface of the ball head through the universal joint, and the other end is placed in the hollow cavity of the base through the threaded hole on the base, the height of the base can be adjusted by rotating the locking bolt, and then the level is used to determine whether the height is reasonable, so that the base can be kept horizontal, and the unevenness of the ground can be avoided to cause the test bench to shake during the test of the main shaft performance, thereby affecting the performance test result.

[0018] 2.The support frame of the application is divided into a V-shaped support part and a U-shaped support part, the circular arc design in the U-shaped support part can better fit the surface of the main shaft, especially the front end structure of the main shaft is closer to the U-shaped support part, and the U-shaped support part can provide more uniform support force to the rotating end of the main shaft during the performance test of the main shaft, thereby reducing the local stress concentration of the workpiece at the support point, and the cooperation of the V-shaped support part, the limiting frame, the support pad and the adjusting pad can realize four-point clamping of the surface of the main shaft, and since the stability requirement of the rear end structure of the main shaft to the support force is low, the V-shaped support part and the limiting frame only need to firmly fix the rear end of the main shaft, and the operation is simple.

[0019] 3.The main shaft performance test bench of the application, since the ball head seat, the support frame and the table top are arranged to ensure stability, the large weight of the test bench is not needed to enhance the stability of the table top during the performance test of the main shaft, and the hollow structure of the support frame reduces the weight of the test bench, so that the main shaft performance test bench of the application is more convenient to transport than the traditional test bench with large weight.

[0020] 4.The ball head seat of the application is divided into a positioning ball head seat and an adjusting ball head seat, when adjusting the horizontal position of the table top, the positioning ball head seat at the four corners is rotated by a wrench, and the level is used to level the table top, after the adjustment is completed, the locking bolt of the adjusting ball head seat is manually rotated to realize the fine adjustment of the table top, and the adjusting ball head seats on the two sides can further increase the stability of the table top by the multi-point support mode. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is a structural schematic view of a main shaft performance test bench in the embodiments of the application.

[0023] Figure 2 Fig. 1 is a structural schematic diagram of a ball head seat in an embodiment of the present application;

[0024] Figure 3 Fig. 2 is a partial structural schematic diagram of a main shaft performance test bench in an embodiment of the present application;

[0025] Figure 4 Fig. 3 is a structural schematic diagram of a main shaft performance test bench without a main shaft in an embodiment of the present application;

[0026] Legend of reference signs:

[0027] 1, table top;

[0028] 2, base;

[0029] 3, ball head seat; 301, positioning ball head seat; 302, adjusting ball head seat; 31, anchor bolt; 32, ball head; 33, ball socket; 34, universal joint; 35, locking bolt;

[0030] 4, support frame; 41, V-shaped support part; 42, U-shaped support part; 43, support pad;

[0031] 5, limiting frame; 51, U-shaped cross beam; 511, top beam; 512, side beam; 52, inclined beam;

[0032] 6, adjusting pad. DETAILED DESCRIPTION

[0033] The present application will be described in detail below with reference to the accompanying drawings. Figures 1-3 The embodiments of the technical solutions of the present application will be described in detail below. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0034] As shown in Fig. 1, the ball head seat includes a positioning ball head seat 301 and an adjusting ball head seat 302. Figures 1-2 As shown in Fig. 2, the main shaft performance test bench includes a base 2, a ball head seat 3, a support frame 4, a limiting frame 5, and a main shaft 6.

[0035] Embodiment one:

[0036] As shown in Fig. 3, the main shaft performance test bench without a main shaft includes a base 2, a ball head seat 3, a support frame 4, and a limiting frame 5. Figures 1-2The application illustrates a main shaft performance test bench. In order to realize accurate leveling through the ball head seat and ensure the stability of the test bench, the main shaft performance test bench of the application is characterized in that the ball head seat 3 is used to realize accurate leveling of the base 2 and the table top 1. In specific implementation, first, the anchor bolt 31 is vertically embedded in the ground and preliminarily positioned by penetrating the threaded hole of the base 2. Then, the ball head 32 is installed on the anchor bolt 31, which is tightly attached to the ground to ensure good contact with the ground. The ball socket 33 is arranged axially on the top surface of the ball head 32, and the universal joint 34 is embedded in the ball socket 33 and covers the anchor bolt 31. Finally, the locking bolt 35 is in contact with the top surface of the ball head 32 by penetrating the universal joint 34, and the other end is placed in the hollow cavity of the base by penetrating the threaded hole of the base 2.

[0037] Specifically, during the adjustment process, only the locking bolt 35 needs to be rotated to adjust the height of the local base 2. In combination with the use of the level, the base 2 can be accurately adjusted to a horizontal state. In the initial leveling stage, the locking bolt 35 on the positioning ball head seat 301 is rotated by a wrench to adjust the height of the four corners of the table top. In combination with the level, the stability of the four corners of the table top can be ensured. Subsequently, the locking bolt 35 on the adjusting ball head seat 302 is manually rotated to realize fine adjustment of the table top 1. Meanwhile, the adjusting ball head seats 302 on the two sides are supported by multiple points to further increase the stability of the table top 1. This design effectively avoids the shaking of the test bench caused by uneven ground and ensures the accuracy of the main shaft performance test.

[0038] Embodiment two:

[0039] As Figure 3 The application illustrates a main shaft performance test bench. In order to realize accurate leveling through the ball head seat and ensure the stability of the test bench, the main shaft performance test bench of the application is characterized in that the ball head seat 3 is used to realize accurate leveling of the base 2 and the table top 1. In specific implementation, first, the anchor bolt 31 is vertically embedded in the ground and preliminarily positioned by penetrating the threaded hole of the base 2. Then, the ball head 32 is installed on the anchor bolt 31, which is tightly attached to the ground to ensure good contact with the ground. The ball socket 33 is arranged axially on the top surface of the ball head 32, and the universal joint 34 is embedded in the ball socket 33 and covers the anchor bolt 31. Finally, the locking bolt 35 is in contact with the top surface of the ball head 32 by penetrating the universal joint 34, and the other end is placed in the hollow cavity of the base by penetrating the threaded hole of the base 2.

[0040] Further, in order to adjust the design of the adjusting pads and the supporting pads to adapt to main shafts of different diameters, the adjusting pads 6 are arranged on the end face of the inclined beam 52 close to the main shaft, and the supporting pads 43 are arranged on the end face of the V-shaped supporting part 41. These pads are made of wear-resistant nylon material, which not only improves wear resistance but also enables stable support of main shafts of different diameters by adjusting the thickness of the pads. This design makes the main shaft performance test bench of the application have wider applicability and can meet the performance test requirements of main shafts of different specifications.

[0041] Further, in order to support the fixed installation of the supporting frame and the limiting frame and ensure the stability of the structure, in order to realize the fixed installation of the supporting frame 4 and the limiting frame 5, the application sets screw holes at the position where the supporting frame 4 and the limiting frame 5 meet. By screwing bolts into these screw holes, the supporting frame 4 and the limiting frame 5 can be firmly connected together. This design not only improves the stability of the structure, but also ensures the safety of the main shaft during installation. At the same time, this connection method is also convenient for disassembly and maintenance, improving the maintenance convenience of the test bench.

[0042] Further, please refer to Figure 1 and Figure 4 , screw holes are arranged on the end face of the U-shaped supporting part 42 close to the main shaft. By screwing bolts into these screw holes, the end of the bolt is in contact with the end face of the main shaft, which can further lock the main shaft and improve the stability of the installation.

[0043] Example three:

[0044] As Figures 1-2 illustrated, the main shaft performance test bench of the application is designed to be lightweight, convenient to transport, and maintain stability. While maintaining stability, the main shaft performance test bench of the application also realizes lightweight design. Through the reasonable layout of the ball head seat 3, the supporting frame 4 and the table top 1, the stability of the test bench during testing is ensured, and the large weight is not needed to enhance the stability. In addition, the hollow structure of the supporting frame 4 not only reduces the weight of the test bench, but also makes transportation more convenient. This design not only meets the performance test requirements of the main shaft, but also reduces the transportation cost and improves the practicality of the test bench.

[0045] In the description of the embodiments of the application, the technical terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the embodiments of the application.

[0046] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "set", "provided with", "connected", "mounted" and other terms should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrated; can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features thereof; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A main shaft performance test bench, comprising: The utility model provides a table (1), characterized in bottom base (2) and ball head seat (3) of connecting bottom base (2) and ground are set close to the bottom of table (1), wherein, ball head seat (3) includes: anchor bolt (31) is vertically planted in ground and is passed through the threaded hole of bottom base (2), ball head (32) is covered anchor bolt (31) and is close to ground, the ball socket (33) of setting in the axial direction on the top surface of ball head (32), universal joint (34) is embedded in ball socket (33) and covers anchor bolt (31), and locking bolt (35) is passed through anchor bolt (31) and is screwed into the threaded hole of bottom base (2).

2. The main shaft performance test bench according to claim 1, characterized in that, Ball head seat (3) includes: positioning ball head seat (301) is set in four top corners of bottom base (2), and adjusting ball head seat (302) is set in the bottom of bottom base (2) opposite sides.

3. The main shaft performance test bench according to claim 1, characterized in that, The top of table (1) is provided with support frame (4), wherein, opposite sides of the top end of support frame (4) are provided with V-shaped support part (41) and U-shaped support part (42), and support pad (43) is arranged on the two end faces of V-shaped support part (41).

4. The main shaft performance test bench according to claim 1, characterized in that, Including: Limiting frame (5) is arranged on the top of V-shaped support part (41), wherein, limiting frame (5) includes: U-shaped crossbeam (51) with opening facing support frame (4), U-shaped crossbeam (51) includes: top beam (511) facing V-shaped support part (41) and side beam (512) arranged on both sides of top beam (511), and inclined beam (52) is arranged between top beam (511) and side beam (512) in a symmetrical manner.

5. The spindle performance test stand of claim 1, wherein, The end face close to the main shaft of inclined beam (52) is provided with adjusting pad (6).

6. The main shaft performance test bench according to claim 3, characterized in that, The position where support frame (4) and limiting frame (5) meet is provided with a threaded hole, and support frame (4) and limiting frame (5) are connected by screwing bolts into the threaded hole.

7. The main shaft performance test bench according to claim 5, characterized in that, The material of adjusting pad (6) and support pad (43) is nylon.

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