Linear stepping motor precision detection device

Abstract

The utility model discloses a linear stepping motor precision detection device, and relates to the precision detection technology field, the linear stepping motor precision detection device comprises a first clamping block and a second clamping block, the first clamping block and the second clamping block are respectively provided with a size adjusting assembly, and the size adjusting assembly comprises a clamping assembly; the limiting assemblies are arranged at the upper ends and the lower ends of the first clamping block and the second clamping block and used for longitudinally limiting the semi-ring pieces. The pushing assembly is arranged on the upper portion of the first clamping block and the upper portion of the second clamping block and used for horizontally pushing and stretching the limiting assembly. According to the detected actual motor shaft diameter of the linear stepping motor, different numbers of semi-ring pieces are selected to be installed in the clamping block and are clamped and fixed in sequence through the T-shaped clamping blocks, and after clamping of the semi-ring pieces is completed, the semi-ring pieces can be clamped and fixed by rotating an adjusting screw rod on a first threaded block. The upper rod body and the lower rod body of the limiting frame can vertically position the semi-ring pieces on the inner sides of the clamping blocks, use is convenient, and adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of precision detection, in particular to a linear stepping motor precision detection device. Background Art

[0002] A linear stepper motor, or linear stepper motor, is a special type of motor that converts rotational motion into linear motion. This conversion is usually achieved by using a screw and a nut that mesh, where some method is used to prevent the screw and nut from rotating relative to each other, thereby allowing the screw to move axially. Linear stepper motors have a wide range of applications, especially in situations where precise linear motion is required. However, the accuracy detection of linear stepper motors has always been a technical problem, because the accuracy directly affects its application effect.

[0003] The patent with publication number CN208239591U discloses a linear stepper motor precision detection device, including a motor shaft, a terminal, a linear stepper motor and a detection component, wherein the linear stepper motor and the detection component are arranged on the circumference of the motor shaft, the detection component is arranged on one side of the linear stepper motor, and the top of the linear stepper motor is integrally formed with a terminal. The beneficial effects of the utility model are as follows: by setting a fixed connection sleeve as an installation medium, it can be used to tightly connect the rangefinder and the motor shaft together, and an anti-slip sleeve is arranged on the inner side of the fixed connection sleeve to prevent the linear stepper motor from vibrating and causing the fixed connection sleeve to move, so that the error of the measurement result is greatly reduced; by setting a connecting plate, a spring and a limit baffle, the rangefinder can be quickly and stably installed in the installation slot, so that the measurement rate is greatly improved, and it can be quickly installed and used between multiple motors, which is convenient and fast, with high stability in use and small error.

[0004] As described in the above patent, by setting a fixed connecting sleeve, the rangefinder and the motor shaft are tightly connected together, which is convenient for actual detection. However, the fixed connecting sleeve used is difficult to be adaptively installed with motor shafts of different models and sizes, resulting in the need to replace fixed connecting sleeves of different sizes when performing specific detection of the linear stepper motor accuracy, which is inconvenient to use. For this reason, the utility model provides a linear stepper motor accuracy detection device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a linear stepper motor precision detection device, which solves the problem that the fixed connecting sleeve used in the previous linear stepper motor precision detection device is difficult to be adaptively installed with motor shafts of different models and sizes.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a linear stepper motor precision detection device, including a first clamping block and a second clamping block, the first clamping block and the second clamping block are both equipped with a size adjustment component, the size adjustment component includes:

[0007] A clamping assembly is arranged on the inner wall of the first clamping block and the second clamping block, and comprises a plurality of groups of semi-ring pieces clamped on the inner wall of the first clamping block and the second clamping block, wherein the outer arc surface of the semi-ring piece is integrally formed with a T-shaped clamping block, and the first clamping block, the second clamping block and the inner side of the semi-ring piece are all provided with a T-shaped clamping groove for the T-shaped clamping block to cooperate with and clamp;

[0008] A limiting assembly is arranged at the upper and lower ends of the first clamping block and the second clamping block, and is used to limit the semi-ring piece longitudinally;

[0009] The pushing component is arranged on the upper part of the first clamping block and the second clamping block, and is used for horizontally extending the limiting component.

[0010] Preferably, the limiting assembly comprises a limiting frame slidably mounted on the first clamping block and the second clamping block, and the first clamping block and the second clamping block are provided with sliding grooves for directional sliding of the limiting frame.

[0011] Preferably, the pushing assembly includes a first threaded block fixedly mounted on the first clamping block and the top of the second clamping block, an adjusting screw is threadedly connected to the first threaded block, a push rod is rotatably mounted on the end of the adjusting screw, sleeves are fixed on both sides of the push rod, and a sliding rod is slidably inserted at one end of the sleeve, the end of the sliding rod is fixed to the limit frame, and a compression spring is installed between the edge of the sliding rod and the sleeve.

[0012] Preferably, the inner diameters of the semi-ring pieces decrease successively and adjacent semi-ring pieces are tightly engaged with each other.

[0013] Preferably, the first clamping block is movably connected to the second clamping block at one end via a hinge, and a second threaded block is fixedly mounted at the other end, and a fastening bolt is threadedly screwed on the second threaded block.

[0014] Preferably, a mounting frame is fixedly connected to one side of the first clamping block, and a rangefinder is installed on the top of the mounting frame.

[0015] Beneficial Effects

[0016] The utility model provides a linear stepper motor precision detection device. Compared with the prior art, it has the following beneficial effects:

[0017] (1) The linear stepper motor precision detection device selects different numbers of semi-ring pieces according to the actual motor shaft diameter of the linear stepper motor to be detected, and installs them into the clamping block, and fixes them in sequence through T-shaped clamping blocks. After the semi-ring pieces are clamped, the adjusting screw on the first threaded block is rotated, and then the push rod is pushed to move horizontally, and the limit frame is translated accordingly. The upper and lower rods of the limit frame can position the semi-ring pieces inside the clamping block up and down. At this time, the first clamping block and the second clamping block are sleeved on the outside of the motor shaft, and bolts are inserted into the second threaded block for tightening and fixing, and then the rangefinder is installed on the motor shaft. It is convenient to use and has strong adaptability.

[0018] (2) The linear stepper motor precision detection device continuously rotates the adjusting screw on the first threaded block so that the sliding rod penetrates into the inner wall of the sleeve, the limit frame presses against the motor shaft, and the compression spring is squeezed, so that the installation of the clamping block and the motor shaft is more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the driving component of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0022] Figure 4 It is a schematic diagram of the disassembly of the sleeve and the slide rod of the utility model.

[0023] In the figure: 1-first clamping block, 2-second clamping block, 3-size adjustment assembly, 31-clamping assembly, 311-semi-ring piece, 312-T-type clamping block, 32-limiting assembly, 321-limiting frame, 33-pushing assembly, 331-first threaded block, 332-adjusting screw, 333-push rod, 334-sleeve, 335-sliding rod, 336-compression spring, 4-mounting frame, 5-distance meter, 6-second threaded block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4The utility model provides a technical solution: a linear stepper motor precision detection device, comprising a first clamping block 1 and a second clamping block 2, the first clamping block 1 and the second clamping block 2 are both equipped with a size adjustment component 3, the size adjustment component 3 includes:

[0026] The clamping assembly 31 is arranged on the inner wall of the first clamping block 1 and the second clamping block 2, and includes a plurality of groups of semi-ring pieces 311 clamped on the inner wall of the first clamping block 1 and the second clamping block 2. The outer arc surface of the semi-ring piece 311 is integrally formed with a T-shaped clamping block 312. The first clamping block 1, the second clamping block 2 and the inner side of the semi-ring piece 311 are all provided with a T-shaped clamping groove for the T-shaped clamping block 312 to cooperate with the clamping;

[0027] The limiting assembly 32 is disposed at the upper and lower ends of the first clamping block 1 and the second clamping block 2 and is used to limit the semi-ring piece 311 in the longitudinal direction;

[0028] The pushing assembly 33 is disposed on the upper part of the first clamping block 1 and the second clamping block 2 and is used to push the limiting assembly 32 horizontally.

[0029] In this embodiment, the limiting assembly 32 includes a limiting frame 321 slidably mounted on the first clamping block 1 and the second clamping block 2, and the first clamping block 1 and the second clamping block 2 are provided with sliding grooves for directional sliding of the limiting frame 321; the upper and lower rods of the limiting frame 321 can position the semi-ring piece 311 on the inner side of the clamping block up and down.

[0030] In this embodiment, the pushing assembly 33 includes a first threaded block 331 fixedly installed on the top of the first clamping block 1 and the second clamping block 2, and an adjusting screw 332 is threadedly connected to the first threaded block 331. A push rod 333 is rotatably installed at the end of the adjusting screw 332. Sleeves 334 are fixed on both sides of the push rod 333, and a sliding rod 335 is slidably inserted at one end of the sleeve 334. The end of the sliding rod 335 is fixed to the limit frame 321, and a compression spring 336 is installed between the edge of the sliding rod 335 and the sleeve 334; by rotating the adjusting screw 332 on the first threaded block 331, the push rod 333 is pushed to move horizontally, and the limit frame 321 is translated accordingly.

[0031] In this embodiment, the inner diameters of the semi-ring pieces 311 decrease successively and adjacent semi-ring pieces 311 are tightly engaged with each other.

[0032] In this embodiment, the first clamping block 1 and the second clamping block 2 are movably connected at one end by a hinge, and the other end is fixedly installed with a second threaded block 6, and a fastening bolt is screwed on the second threaded block 6. One side of the first clamping block 1 is fixedly connected with a mounting frame 4, and a distance meter 5 is installed on the top of the mounting frame 4. The first clamping block 1 and the second clamping block 2 are sleeved on the outside of the motor shaft, and bolts are inserted into the second threaded block 6 for tightening and fixing, and then the distance meter 5 is installed on the motor shaft.

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] When working, the linear stepper motor is connected to the signal source through the terminal, and the linear stepper motor is controlled to move on the motor shaft through the pulse signal. The theoretical value of the linear stepper motor's movement is calculated according to the pulse signal and the nameplate parameters of the linear stepper motor. The actual value of the linear stepper motor's movement is measured by the distance meter 5. The accuracy of the linear stepper motor can be detected by comparing the theoretical value and the actual value. When the distance meter 5 is specifically assembled, different numbers of half-ring pieces 311 can be selected according to the actual motor shaft diameter of the detected linear stepper motor, and installed into the clamping block, and they are clamped and fixed in sequence through the T-shaped clamping block 312. After the half-ring piece 311 is clamped, it is rotated The adjusting screw 332 on the first threaded block 331 is moved, and then the push rod 333 is pushed to move horizontally, and the limit frame 321 is translated accordingly. The upper and lower rods of the limit frame 321 can position the semi-ring piece 311 on the inner side of the clamping block up and down. At this time, the first clamping block 1 and the second clamping block 2 are sleeved on the outside of the motor shaft, and bolts are inserted into the second threaded block 6 for tightening and fixing, and then the rangefinder 5 is installed on the motor shaft; in addition, the adjusting screw 332 on the first threaded block 331 is continuously rotated, so that the sliding rod 335 penetrates into the inner wall of the sleeve 334, the limit frame 321 is pressed against the motor shaft, and the compression spring 336 is squeezed, so that the installation of the clamping block and the motor shaft is more secure.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A linear stepper motor precision detection device, comprising a first clamping block (1) and a second clamping block (2), characterized in that: The first clamping block (1) and the second clamping block (2) are both equipped with a size adjustment component (3), and the size adjustment component (3) comprises: A clamping assembly (31) is arranged on the inner walls of the first clamping block (1) and the second clamping block (2), and comprises a plurality of groups of semi-annular pieces (311) clamped on the inner walls of the first clamping block (1) and the second clamping block (2), wherein the outer arc surface of the semi-annular piece (311) is integrally formed with a T-shaped clamping block (312), and the inner sides of the first clamping block (1), the second clamping block (2) and the semi-annular piece (311) are all provided with a T-shaped clamping groove for the T-shaped clamping block (312) to be clamped together; A limiting assembly (32) is arranged at the upper and lower ends of the first clamping block (1) and the second clamping block (2), and is used to limit the semi-annular piece (311) in the longitudinal direction; The pushing component (33) is arranged on the upper part of the first clamping block (1) and the second clamping block (2), and is used to push the limiting component (32) horizontally.

2. A linear stepper motor accuracy detection device according to claim 1, characterized in that: The limiting assembly (32) comprises a limiting frame (321) slidably mounted on the first clamping block (1) and the second clamping block (2); the first clamping block (1) and the second clamping block (2) are provided with sliding grooves for directional sliding of the limiting frame (321).

3. A linear stepper motor precision detection device according to claim 2, characterized in that: The pushing assembly (33) comprises a first threaded block (331) fixedly mounted on the top of the first clamping block (1) and the second clamping block (2); an adjusting screw (332) is threadedly connected to the first threaded block (331); a push rod (333) is rotatably mounted at the end of the adjusting screw (332); sleeves (334) are fixed on both sides of the push rod (333); a sliding rod (335) is slidably inserted at one end of the sleeve (334); the end of the sliding rod (335) is fixed to the limit frame (321); and a compression spring (336) is installed between the edge of the sliding rod (335) and the sleeve (334).

4. The linear stepper motor precision detection device according to claim 1, characterized in that: The inner diameters of the semi-ring pieces (311) decrease in sequence and adjacent semi-ring pieces (311) are tightly engaged with each other.

5. The linear stepper motor precision detection device according to claim 1, characterized in that: The first clamping block (1) is movably connected to the second clamping block (2) at one end via a hinge, and a second threaded block (6) is fixedly mounted at the other end, with a fastening bolt being screwed onto the thread of the second threaded block (6).

6. The linear stepper motor precision detection device according to claim 1, characterized in that: A mounting frame (4) is fixedly connected to one side of the first clamping block (1), and a distance meter (5) is installed on the top of the mounting frame (4).

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