CN210346561U - Axial clearance test bench for screw rod and nut auxiliary shaft - Google Patents

Abstract

The utility model discloses a lead screw and nut countershaft to clearance testboard, including base, nut, lead screw and fixed column, both ends have all seted up the spout about the right side of base top, the spout left end is equipped with the workstation, the workstation top is equipped with the frock clamp, the workstation left side is equipped with the chassis, the chassis top is equipped with the fixed column, frock clamp top is equipped with the test box, test box top right-hand member is equipped with the shaft section of thick bamboo, the preceding below of test box is equipped with the countershaft, test box right side below is equipped with the percentage table, the percentage table right side is equipped with the handle, test box bottom right-hand member is equipped with the main shaft dish, the main shaft dish bottom is equipped with the main shaft, test box bottom left end is equipped with connecting rod a; the utility model relates to a lead screw and nut countershaft are to clearance testboard through the fixed lead screw of main shaft, through frock clamp fixation nut, through upper and lower pulling handle, drives the scurrying about the percentage table, shows through the percentage table and calculates out the clearance.

Description

Axial clearance test bench for screw rod and nut auxiliary shaft

Technical Field

The utility model relates to an axial clearance tests technical field, specifically is a lead screw and nut countershaft axial clearance testboard.

Background

The screw rod, also called ball screw, is the most frequently used transmission element on the tool machinery and precision machinery, its main function is to convert the rotary motion into the linear motion, or convert the torque into the axial repeated acting force, have high-accuracy, reversibility and high-efficient characteristic at the same time, the nut is the nut, the part used for fastening together with bolt or screw bolt screwing, an element that all produce and manufacture machinery must use is divided into several big types such as carbon steel, stainless steel, nonferrous metal (such as copper) according to the difference of the material, because the screw rod is used with the nut to support, therefore need test the axial clearance of screw rod and nut, prevent the clearance from appearing too big or too small and can't cooperate and use, but the test speed of the present survey and set up platform is slower, the test is not tight enough, lead to the inaccurate problem of data.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lead screw and nut countershaft are to clearance testboard has that test data is accurate, test speed is fast, rational in infrastructure, easy and simple to handle's advantage, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a radial clearance test bench for a screw rod and a nut auxiliary shaft comprises a base, a nut, a screw rod and a fixed column, wherein the upper end and the lower end of the right side of the top of the base are respectively provided with a sliding groove, the left end of the sliding groove is provided with a workbench, the workbench is embedded into the sliding groove through a sliding block, the top of the workbench is provided with a tool clamp, the tool clamp is fixed on the workbench through screws, the left side of the workbench is provided with a chassis, the chassis is fixed on the base through screws, the top of the chassis is provided with the fixed column, the fixed column is fixed on the chassis through screws, a test box is arranged above the tool clamp and is fixed on the fixed column through screws, the right end of the top of the test box is provided with a shaft barrel, the shaft barrel is fixed on the test box through a welding mode, an auxiliary shaft is arranged below, the dial indicator is fixed on the test box through screws, a handle is arranged on the right side of the dial indicator and fixed on an auxiliary shaft through screws, a main shaft disc is arranged at the right end of the bottom of the test box and fixed on the test box through screws, a main shaft is arranged at the bottom of the main shaft disc and mounted on the main shaft disc through a rotating shaft, a connecting rod a is arranged at the left end of the bottom of the test box and fixed on a fixed column through screws, a locking screw b is arranged at the left end of the connecting rod a and fixed on the connecting rod a through screws, a connecting rod b is arranged on the right side of the connecting rod a and fixed on the main shaft disc through screws, a locking screw a is arranged at the joint of the connecting rod a and the connecting ring b, and the locking screw a is fixed at the joint of the connecting rod a and the connecting ring b through.

Preferably, the fixing column penetrates through the test box, the auxiliary shaft penetrates through the test box, the main shaft penetrates through the main shaft disc and the test box until the main shaft disc and the test box are in the same horizontal plane with the upper surface of the shaft cylinder, and the diameter of the main shaft is smaller than that of the shaft cylinder.

Preferably, the workbench and the tool clamp can slide in the sliding groove through the sliding block.

Preferably, the internal rotating shaft, the main shaft and the auxiliary shaft of the dial indicator are connected in pairs in the test box.

Preferably, the dial indicator model is LINKS.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model relates to a lead screw and nut countershaft pass through the fixed lead screw of main shaft to clearance testboard, through frock clamp fixation nut, through upper and lower pulling handle, drive the percentage table drunkenness from top to bottom, and the clearance is calculated to maximum value and minimum that shows through the percentage table, finely tunes the distance of pull rod an and pull rod b through locking screw an and locking screw b, and then finely tunes the position of worker's clamping.

Drawings

Fig. 1 is a schematic view of the overall structure of a radial clearance test board for a lead screw and nut pair of the present invention;

fig. 2 is a detailed schematic diagram of the axial clearance test table of the screw rod and nut pair of the present invention.

The figures are labeled as follows: the device comprises a base 1, a sliding groove 2, a workbench 3, a tool clamp 4, a nut 5, a lead screw 6, a main shaft 7, a main shaft disc 8, a handle 9, a dial indicator 10, a test box 11, an auxiliary shaft 12, a chassis 13, a shaft cylinder 14, a connecting rod a15, a connecting rod b16, a locking screw a17, a locking screw b18 and a fixing column 19.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a radial clearance test bench for a screw rod and a nut auxiliary shaft comprises a base 1, a nut 5, a screw rod 6 and a fixed column 19, wherein the upper end and the lower end of the right side of the top of the base 1 are both provided with a sliding groove 2, the left end of the sliding groove 2 is provided with a workbench 3, the workbench 3 is embedded into the sliding groove 2 through a sliding block, the top of the workbench 3 is provided with a tool clamp 4, the tool clamp 4 is fixed on the workbench 3 through screws, the left side of the workbench 3 is provided with a chassis 13, the chassis 13 is fixed on the base 1 through screws, the top of the chassis 13 is provided with the fixed column 19, the fixed column 19 is fixed on the chassis 13 through screws, a test box 11 is arranged above the tool clamp 4, the test box 11 is fixed on the fixed column 19 through screws, the right end of the top of the test box 11 is provided with a shaft cylinder 14, a dial indicator 10 is arranged below the right side of the test box 11, the dial indicator 10 is fixed on the test box 11 through screws, a handle 9 is arranged on the right side of the dial indicator 10, the handle 9 is fixed on an auxiliary shaft 12 through screws, a main shaft disc 8 is arranged at the right end of the bottom of the test box 11, the main shaft disc 8 is fixed on the test box 11 through screws, a main shaft 7 is arranged at the bottom of the main shaft disc 8, the main shaft 7 is installed on the main shaft disc 8 through a rotating shaft, a connecting rod a15 is arranged at the left end of the bottom of the test box 11, a connecting rod a15 is fixed on a fixing column 19 through screws, a locking screw b18 is arranged at the left end of the connecting rod a15, a locking screw b18 is fixed on a connecting rod a15 through screws, a connecting rod b16 is arranged at the right side of a main shaft connecting rod a15, a connecting ring b16 is fixed on the disc 8 through screws, a locking screw a17 is arranged at the connecting, the auxiliary shaft 12 runs through the test box 11, the main shaft 7 runs through the main shaft disc 8 and the test box 11 until the upper surface of the shaft barrel 14 is on the same horizontal plane, the diameter of the main shaft 7 is smaller than that of the shaft barrel 14, the workbench 3 and the tool clamp 4 can slide in the sliding groove 2 through the sliding block, the internal rotating shaft of the dial indicator 10, the main shaft 7 and the auxiliary shaft 12 are connected in two pairs inside the test box 11, and the dial indicator 10 is LINKS in type.

The working principle is as follows: the utility model relates to a lead screw and nut countershaft axial clearance test platform, at first load lead screw 6 on main shaft 7 and fasten, main shaft 7 is behind the fixed lead screw 6, then press from both sides tight the worker's clamp 4 inside on nut 5 installation workstation 3 again, behind the worker's clamp 4 fixation nut 5, then install a percentage table 10 on main shaft dish 8 again, then pull the handle from top to bottom, drive countershaft 12, main shaft 7 and lead screw 6 motion, percentage table 10 can play from top to bottom, then record a maximum value and a minimum value according to the data result that percentage table 10 shows, then calculate the value of test according to maximum value and minimum value, namely the value of lead screw and nut countershaft axial clearance, if want the position of fine setting worker's clamp 4 when testing, can be through rotatory locking screw a17 and locking screw b18, drive connecting rod a15 and both sides b16, and then realize the operation of fine setting worker's clamp 4 fine setting position, the test is better performed.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a radial clearance testboard of lead screw and nut countershaft which characterized in that: the testing device comprises a base (1), a nut (5), a screw rod (6) and a fixed column (19), wherein the upper end and the lower end of the right side of the top of the base (1) are respectively provided with a sliding groove (2), the left end of the sliding groove (2) is provided with a workbench (3), the workbench (3) is embedded into the sliding groove (2) through a sliding block, the top of the workbench (3) is provided with a work clamp (4), the work clamp (4) is fixed on the workbench (3) through screws, the left side of the workbench (3) is provided with a chassis (13), the chassis (13) is fixed on the base (1) through screws, the top of the chassis (13) is provided with the fixed column (19), the fixed column (19) is fixed on the chassis (13) through screws, a testing box (11) is arranged above the work clamp (4), the testing box (11) is fixed on the fixed column (19) through screws, and the right end of, the testing device is characterized in that the shaft cylinder (14) is fixed on the testing box (11) in a welding mode, an auxiliary shaft (12) is arranged below the front of the testing box (11), the auxiliary shaft (12) is fixed on the testing box (11) through screws, a dial indicator (10) is arranged below the right side of the testing box (11), the dial indicator (10) is fixed on the testing box (11) through screws, a handle (9) is arranged on the right side of the dial indicator (10), the handle (9) is fixed on the auxiliary shaft (12) through screws, a main shaft disc (8) is arranged at the right end of the bottom of the testing box (11), the main shaft disc (8) is fixed on the testing box (11) through screws, a main shaft (7) is arranged at the bottom of the main shaft disc (8), the main shaft (7) is installed on the main shaft disc (8) through a rotating shaft, a connecting rod a (15) is arranged at the left end of the bottom of the testing box, the utility model discloses a locking device, including connecting rod a (15), connecting rod b (16), connecting rod a (15) right side, connecting rod b (16) pass through the fix with screw on connecting rod a (15), connecting rod a (15) right side is equipped with connecting rod b (16), connecting rod b (16) pass through the fix with screw on spindle disc (8), connecting rod a (15) and connecting rod b (16) junction are equipped with locking screw a (17), locking screw a (17) pass through the fix with screw at connecting rod a (15) and connecting rod b (16) junction.

2. The axial clearance test bench of a lead screw and nut pair of claim 1, wherein: the fixing column (19) penetrates through the test box (11), the auxiliary shaft (12) penetrates through the test box (11), the main shaft (7) penetrates through the main shaft disc (8) and the test box (11) until the main shaft disc and the upper surface of the shaft cylinder (14) are on the same horizontal plane, and the diameter of the main shaft disc is smaller than that of the shaft cylinder (14).

3. The axial clearance test bench of a lead screw and nut pair of claim 1, wherein: the workbench (3) and the tool clamp (4) can slide in the sliding groove (2) through the sliding block.

4. The axial clearance test bench of a lead screw and nut pair of claim 1, wherein: the internal rotating shaft, the main shaft (7) and the auxiliary shaft (12) of the dial indicator (10) are connected in pairs in the test box (11).

5. The axial clearance test bench of a lead screw and nut pair of claim 1, wherein: the dial indicator (10) is LINKS in model.

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