Torque detection device for trapezoidal lead screw

Abstract

The utility model discloses a torque detection device for a trapezoid lead screw, which comprises a workbench, a torque measuring head and lead screw fixing assemblies, the torque measuring head is movably connected with the workbench, and the lead screw fixing assemblies are movably arranged at the two ends of the workbench and are matched with the ends of the lead screw; relates to the technical field of lead screw torque detection. The fixed screw cylinder is fixedly connected with the mounting frame, the control screw cylinder is in threaded connection with the fixed screw cylinder, one end of the fixed seat is fixedly provided with the threaded chuck, one end of the control screw cylinder is fixedly connected with the control ring, the control ring is movably connected with the threaded chuck, and the control screw cylinder is in threaded connection with the threaded chuck. Therefore, after the end head of the trapezoidal lead screw is inserted into the threaded clamping head, the control screw barrel can be rotated and is in threaded connection with the threaded clamping head, so that the opening size of the threaded clamping head is controlled, the threaded clamping head is matched with the size of the end head of the lead screw, the end head of the lead screw is clamped, and the clamping effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to trapezoidal screw torque detection technical field, specifically a trapezoidal screw torque detection device for trapezoidal screw. BACKGROUND

[0002] Trapezoidal screw is a common mechanical transmission element, used for converting rotary motion into linear motion or vice versa. Its name comes from its cross-sectional shape similar to a trapezoid.

[0003] The patent with publication number CN218628977U discloses a ball screw friction torque detection adjustment device, which specifically discloses a technical scheme of "the utility model provides a ball screw friction torque detection adjustment device, which comprises a base, two fastening assemblies, the two fastening assemblies are arranged on the top of the base, a screw is clamped between the two fastening assemblies, and a ball nut is threadedly connected to the outer surface of the screw; an adjustment assembly for driving one of the fastening assemblies left and right, the adjustment assembly is arranged at the bottom of the base, and the adjustment end of the adjustment assembly is fixedly connected with the fastening assembly", which realizes the technical effect of "the ball screw friction torque detection adjustment device provided by the utility model can rotate and support the two ends of the screw through the arrangement of the two fastening assemblies, ensuring the stability of the screw during detection, thereby improving the accuracy of detection, the friction torque of the screw can be quickly detected through the arrangement of the torque detection assembly, the detection of the friction torque of screws of different lengths is satisfied through the left and right adjustment of one of the fastening assemblies, and the functionality of the equipment is improved".

[0004] However, the device has the problem of inconvenient clamping of the screw shaft head section during actual use, or cannot detect as many screw shaft heads of different diameters as possible, and there is room for improvement. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a trapezoidal screw torque detection device to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a trapezoidal screw torque detection device, comprising a workbench, a torque measurement head, and a screw fixing assembly, the torque measurement head is movably connected with the workbench, the screw fixing assembly is movably arranged at both ends of the workbench and is adapted to the screw head; the screw fixing assembly comprises a mounting bracket, a fixed screw cylinder, a control screw cylinder, and a fixed seat, the fixed screw cylinder is fixedly connected with the mounting bracket, the control screw cylinder is screw-connected with the fixed screw cylinder, one end of the fixed seat is fixedly provided with a threaded chuck, one end of the control screw cylinder is fixedly connected with a control ring, the control ring is movably connected with the threaded chuck, and the control screw cylinder is screw-connected with the threaded chuck.

[0007] As a further scheme of the utility model: a trapezoidal screw torque detection device, one side of the workbench is fixedly connected with a first movable frame, the torque head is movably connected with the first movable frame, and the torque head is used for screw torque detection.

[0008] As a further scheme of the utility model: a trapezoidal screw torque detection device, a double-head motor is fixedly installed inside the workbench, a ball screw nut pair is arranged on the output end of the double-head motor, and the ball screw nut pair is drivingly connected with the screw fixing assembly.

[0009] As a further scheme of the utility model: a trapezoidal screw torque detection device, the torque head comprises a torque test frame, a test head and a second movable frame, two groups of the torque test frames are fixedly connected with the second movable frame, and the test head is embedded inside the torque test frame.

[0010] As a further scheme of the utility model: a trapezoidal screw torque detection device, a hexagonal port is fixedly installed outside the control screw cylinder, and the hexagonal port is matched with an external wrench.

[0011] As a further scheme of the utility model: a trapezoidal screw torque detection device, a fixed plate is fixedly installed on one side of the mounting frame, and one end of the fixed seat, away from the threaded chuck, is fixedly connected with the fixed plate.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. Since the fixed screw cylinder is fixedly connected with the mounting frame, the control screw cylinder is screw-connected with the fixed screw cylinder, one end of the fixed seat is fixedly installed with the threaded chuck, one end of the control screw cylinder is fixedly connected with the control ring, the control ring is movably connected with the threaded chuck, and the control screw cylinder is screw-connected with the threaded chuck, therefore, after the end of the trapezoidal screw is inserted into the threaded chuck, the control screw cylinder can be rotated and screw-connected with the threaded chuck, so that the size of the threaded chuck is controlled, the size of the threaded chuck is matched with the end of the screw, the end of the screw is clamped, and the clamping effect is good.

[0014] 2. Since the ball screw nut pair comprises a screw and a screw nut, one end of the screw, which is fixedly connected with the output end of the double-head motor, is rotatable, and the screw nut sleeved outside the screw is axially movable along the screw, so that the relative distance between the two screw fixing assemblies can be adjusted.

[0015] 3. Since the test head is embedded inside the torque test frame, the test head can be internally provided with a torque sensor and detect the torque of the clamped screw. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the whole structure of the torque detection device for trapezoidal screw;

[0017] Figure 2 It is a split structure schematic view of the screw fixing assembly in the torque detection device for trapezoidal screw;

[0018] Figure 3 It is a sectional view of the screw fixing assembly in the torque detection device for trapezoidal screw;

[0019] Figure 4 It is a structure schematic view of the torque detection head in the torque detection device for trapezoidal screw;

[0020] Figure 5 It is a structure schematic view of the ball screw nut pair and double head motor in the torque detection device for trapezoidal screw;

[0021] In the figure: 1, workbench; 2, first movable frame; 3, ball screw nut pair; 4, torque detection head; 41, torque test frame; 42, test head; 43, second movable frame; 5, screw fixing assembly; 51, mounting frame; 52, fixed screw cylinder; 53, control screw cylinder; 54, fixed seat; 55, threaded chuck; 56, control ring; 57, hexagonal port; 58, fixed plate; 6, double head motor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0023] In the description of the utility model, it is necessary to explain that the orientation or positional relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or positional relation based on the orientation or positional relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0024] In the embodiment of the utility model, a torque detection device for trapezoidal screw rod, including workbench 1, measure torque head 4 and screw rod fixed assembly 5, measure torque head 4 with workbench 1 swing joint, screw rod fixed assembly 5 swing setting in both ends of workbench 1 and all with screw rod end head is adapted;Screw rod fixed assembly 5 includes mounting bracket 51, fixed screw cylinder 52, control screw cylinder 53 and fixed base 54, fixed screw cylinder 52 and mounting bracket 51 fixed connection, control screw cylinder 53 and fixed screw cylinder 52 screw joint, one end of fixed base 54 is fixedly installed with thread chuck 55, one end of control screw cylinder 53 is fixedly connected with control ring 56, control ring 56 and thread chuck 55 swing joint, control screw cylinder 53 and thread chuck 55 screw joint.

[0025] Because fixed screw cylinder 52 and mounting bracket 51 fixed connection, control screw cylinder 53 and fixed screw cylinder 52 screw joint, one end of fixed base 54 is fixedly installed with thread chuck 55, one end of control screw cylinder 53 is fixedly connected with control ring 56, control ring 56 and thread chuck 55 swing joint and control screw cylinder 53 and thread chuck 55 screw joint, therefore after the end of trapezoidal screw rod is inserted into thread chuck 55, it can be through the rotation control screw cylinder 53 and makes control screw cylinder 53 and thread chuck 55 screw joint, thereby the size of thread chuck 55 opening is controlled, and the size of thread chuck 55 and screw rod end head is adapted, and the clamping of screw rod end head is carried out, and the clamping effect is good.

[0026] As a further scheme of the utility model: a trapezoidal screw torque detection device, one side of the workbench 1 is fixedly connected with a first movable frame 2, the torque measurement head 4 is movably connected with the movable frame 2, and the torque measurement head 4 is used for screw torque detection.

[0027] As a further scheme of the utility model: a trapezoidal screw torque detection device, a double-head motor 6 is fixedly installed in the inside of the workbench 1, a ball screw nut pair 3 is arranged at the output end of the double-head motor 6, and the ball screw nut pair 3 is drivingly connected with a screw fixing assembly 5.

[0028] Since the ball screw nut pair 3 comprises a screw and a screw nut, the output end of the double-head motor 6 is fixedly connected with one end of the screw in the ball screw nut pair 3, and the screw nut arranged outside the screw moves along the screw axis after the screw rotates, so that the relative distance of the two screw fixing assemblies 5 can be adjusted.

[0029] As a further scheme of the utility model: a trapezoidal screw torque detection device, the torque measurement head 4 comprises a torque test frame 41, a test head 42 and a second movable frame 43, two groups of the torque test frame 41 are fixedly connected with the second movable frame 43, and the test head 42 is embedded in the inside of the torque test frame 41.

[0030] Since the test head 42 is embedded in the inside of the torque test frame 41, the test head 42 can be internally provided with a torque sensor and detect the torque of the clamped screw.

[0031] As a further scheme of the utility model: a trapezoidal screw torque detection device, a hexagonal port 57 is fixedly installed on the outside of the control screw cylinder 53, and the hexagonal port 57 is matched with an external wrench.

[0032] As a further scheme of the utility model: a trapezoidal screw torque detection device, a fixing plate 58 is fixedly installed on one side of the mounting frame 51, and one end of the fixing seat 54 away from the thread chuck 55 is fixedly connected with the fixing plate 58.

[0033] The working principle of the utility model is that since the fixed screw cylinder 52 is fixedly connected with the mounting frame 51, the control screw cylinder 53 is screw-connected with the fixed screw cylinder 52, one end of the fixing seat 54 is fixedly installed with the thread chuck 55, one end of the control screw cylinder 53 is fixedly connected with the control ring 56, the control ring 56 is movably connected with the thread chuck 55 and the control screw cylinder 53 is screw-connected with the thread chuck 55, therefore, after the end of the trapezoidal screw is inserted into the thread chuck 55, the control screw cylinder 53 can be rotated and screw-connected with the thread chuck 55, so that the size of the thread chuck 55 is controlled, the size of the thread chuck 55 is matched with the size of the screw end, the screw end is clamped, and the clamping effect is good.

[0034] Since the ball screw nut pair 3 comprises a screw rod and a screw nut, the output end of the double-head motor 6 is fixedly connected with one end of the screw rod in the ball screw nut pair 3, and the screw nut sleeved outside the screw rod moves along the screw rod after the screw rod rotates, so that the relative distance of the two screw rod fixing assemblies 5 can be adjusted.

[0035] Since the test head 42 is embedded in the inside of the torque test frame 41, the test head 42 can be internally provided with a torque sensor and detect the torque of the clamped screw rod.

[0036] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A torque detection device for a trapezoidal screw, characterized in that: The invention comprises a workbench (1), a torque measuring head (4) and a screw fixing assembly (5), wherein the torque measuring head (4) is movably connected to the workbench (1), and the screw fixing assembly (5) is movably arranged at both ends of the workbench (1) and is adapted to the ends of the screw; The screw fixing assembly (5) comprises a mounting frame (51), a fixed screw barrel (52), a control screw barrel (53) and a fixing seat (54); the fixed screw barrel (52) is fixedly connected to the mounting frame (51); the control screw barrel (53) is screwed to the fixed screw barrel (52); one end of the fixing seat (54) is fixedly mounted with a threaded clamp (55); one end of the control screw barrel (53) is fixedly connected with a control ring (56); the control ring (56) is movably connected to the threaded clamp (55); and the control screw barrel (53) is screwed to the threaded clamp (55).

2. A torque detection device for a trapezoidal screw according to claim 1, characterized in that: A first movable frame (2) is fixedly connected to one side of the workbench (1), and the torque measuring head (4) is movably connected to the first movable frame (2). The torque measuring head (4) is used for screw torque detection.

3. The torque detection device for a trapezoidal screw according to claim 2, characterized in that: A double-headed motor (6) is fixedly installed inside the workbench (1), and a ball screw nut pair (3) is provided at the output end of the double-headed motor (6). The ball screw nut pair (3) is transmission-connected to the screw fixing assembly (5).

4. A torque detection device for a trapezoidal screw according to claim 3, characterized in that: The torque measuring head (4) comprises a torque test frame (41), a test head (42) and a second movable frame (43); two sets of the torque test frames (41) are fixedly connected to the second movable frame (43); and the test head (42) is embedded in the torque test frame (41).

5. The torque detection device for a trapezoidal screw according to claim 4, characterized in that: A hexagonal opening (57) is fixedly mounted on the outer side of the control screw barrel (53), and the hexagonal opening (57) is adapted to an external wrench.

6. The torque detection device for a trapezoidal screw according to claim 5, characterized in that: A fixing plate (58) is fixedly mounted on one side of the mounting frame (51), and one end of the fixing seat (54) away from the threaded clamp (55) is fixedly connected to the fixing plate (58).

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