Dynamic pushing force tool

Abstract

The utility model provides a dynamic pushing force tool which comprises a lead screw motor and a base, the lead screw motor comprises a driving part and a linear lead screw, and the linear lead screw is driven by the driving part; the base is provided with a motor mounting position for mounting the lead screw motor; the bearing part is connected with the linear lead screw in a matched mode so that the bearing part can move up and down in the vertical direction along the linear lead screw. The supporting part is fixedly arranged on the upper end face of the base. The limiting plate is fixedly connected with one end of the supporting part away from the base; a limiting hole is formed in the position, corresponding to the thrust axis of the driving part, of the limiting plate, the central axis of the area defined by the limiting hole coincides with the thrust axis, and the end, away from the base, of the linear lead screw is inserted into the limiting hole. The utility model solves the technical problem that the thrust of a screw motor in the vertical pushing direction cannot be accurately measured due to the fact that the measuring process is dynamic and the screw rod is easy to shake or deviate towards a certain side in the upward pushing process of a heavy object.

Description

Technical Field

[0001] This utility model relates to the field of motor testing technology, and more specifically, to a dynamic thrusting tool. Background Technology

[0002] The thrust of a lead screw motor is one of the important parameters affecting its working efficiency. In the existing technology, the thrust of a lead screw motor is usually measured by observing the situation when the lead screw motor pushes up objects of different weights to obtain the maximum thrust of the lead screw motor.

[0003] However, the relevant technology has at least one of the following problems: since the measurement process is dynamic, the screw is prone to wobbling or deviating to one side when the weight is pushed upward, which makes it impossible to accurately measure the thrust in the vertical pushing direction of the screw motor. Utility Model Content

[0004] The technical problem solved by this utility model is that, since the measurement process is dynamic, the lead screw is prone to swaying or deviating to one side during the upward pushing of the weight, which makes it impossible to accurately measure the thrust in the vertical pushing direction of the lead screw motor.

[0005] To address the aforementioned problems, this utility model provides a dynamic thrusting tool, comprising: a lead screw motor and a base; the lead screw motor includes a drive unit and a linear lead screw, which is driven by the drive unit; the base has a motor mounting position for mounting the lead screw motor; a load-bearing part is connected to the linear lead screw to achieve vertical up-and-down movement along the linear lead screw; a support part is fixedly mounted on the upper end face of the base; a limiting plate is fixedly connected to the end of the support part away from the base; wherein, the limiting plate has a limiting hole at the position corresponding to the thrust axis of the drive unit, the central axis of the area enclosed by the limiting hole coincides with the thrust axis, and the end of the linear lead screw away from the base is inserted into the limiting hole.

[0006] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: by fixing the base and the limiting plate to each other, the drive unit is fixed and the end of the linear screw away from the drive unit is limited, so that the linear screw always keeps its thrust axis aligned with the drive unit during rotation. This solves the problem of the screw shaking or deviating when the measurement process is dynamic and the weight pushes it, thus enabling accurate measurement of the thrust in the vertical pushing direction of the screw motor.

[0007] In one embodiment of this utility model, the limiting plate includes a deep groove ball bearing; the outer ring of the deep groove ball bearing is fixedly embedded in the limiting hole, and the inner ring of the deep groove ball bearing is sleeved on the rod body of the linear lead screw.

[0008] Compared with existing technologies, the technical effects achieved by this solution are as follows: By utilizing the rotational characteristics of deep groove ball bearings, the friction of the linear lead screw at the limiting hole can be effectively reduced, while also providing support and guidance for the linear lead screw, ensuring smooth movement of the linear lead screw within the limiting hole, further enhancing the overlap between the linear lead screw and the thrust axis, preventing the lead screw from wobbling or deviating due to friction and other factors, and improving measurement accuracy.

[0009] In one embodiment of this utility model, the lead screw motor further includes a nut, which is movably connected to the lead screw and moves up and down along the direction of the lead screw; the load-bearing part includes a first support plate, which has a first mating position and is fixedly connected to the nut.

[0010] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the nut and the lead screw are movably connected and can move up and down along the direction of the lead screw, and the first mating position of the first support plate is fixedly connected to the nut. This structure enables the up and down movement of the lead screw to be accurately transmitted to the first support plate, ensuring effective connection and motion transmission between the load-bearing part and the lead screw. It ensures that the load-bearing part can move up and down accurately in the vertical direction with the movement of the lead screw, providing a stable transmission structure for subsequent thrust measurement.

[0011] In one embodiment of this utility model, the support part includes at least one linear guide shaft, which is vertically fixed to the upper end face of the base; the first support plate is also provided with a second mating position, which is slidably connected to the side of the linear guide shaft.

[0012] Compared with the existing technology, the technical effects achieved by adopting this technical solution are as follows: the linear guide shaft is vertically fixed to the upper end face of the base, and the second mating position of the first support plate is slidably connected to the side of the linear guide shaft, which provides precise guidance for the up and down movement of the first support plate, prevents the first support plate from shifting horizontally during the load-bearing process, and ensures that it only moves vertically along the linear guide shaft, thereby improving the stability and linearity of the load-bearing part's movement and helping to accurately measure the vertical thrust of the lead screw motor.

[0013] In one embodiment of this utility model, the support part includes multiple linear guide shafts; the load-bearing part also includes a second support plate, which is slidably connected to any one or more linear guide shafts, and the second support plate is located above the first support plate; wherein, the lateral area of ​​the second support plate is larger than the lateral area of ​​the first support plate, and the second support plate is provided with a third mating position, which is used to mate with the first support plate to realize the second support plate moving up and down along the direction of the linear guide shafts.

[0014] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the multi-layered load-bearing structure can disperse the pressure of heavy objects through the larger second support plate, and through cooperation with the linear guide shaft, it ensures that the second support plate can move up and down along the linear guide shaft, further enhancing the stability and load-bearing capacity of the overall load-bearing structure, avoiding structural deformation and screw deviation caused by uneven distribution of heavy objects or excessive pressure, and facilitating accurate measurement of thrust.

[0015] In one embodiment of this utility model, the load-bearing part further includes a linear bearing; wherein, the first support plate and the second support plate are respectively provided with linear bearings, and the linear bearings are sleeved on the linear guide shaft, so that the first support plate and the second support plate can slide up and down along the linear guide shaft.

[0016] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the linear bearing is sleeved on the linear guide shaft, allowing the first and second support plates to slide up and down along the linear guide shaft, which greatly reduces the frictional force when the load-bearing part moves on the linear guide shaft, making the up and down movement of the load-bearing part smoother and more stable, reducing energy loss and motion errors caused by friction, and improving the accuracy and reliability of the measuring device.

[0017] In one embodiment of this utility model, the base includes a motor mounting plate, a support base plate, and multiple fixing columns; wherein, the motor mounting plate is located above the support base plate, and the motor mounting plate and the support base plate are fixedly connected by the fixing columns, so that a motor mounting position is formed between the motor mounting plate and the support base plate.

[0018] Compared with existing technologies, the technical effects achieved by this solution are: it allows the drive unit to be securely mounted on the motor mounting position, preventing the motor from shifting due to vibration or other external forces during operation, providing stable support for the normal operation of the lead screw motor, thereby ensuring the stability of the lead screw motor's driving process and facilitating accurate thrust measurement.

[0019] In one embodiment of this utility model, a mounting groove is provided on one side of the motor mounting plate, which is used to extend upward through a linear lead screw.

[0020] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the assembly slot is used to extend the linear lead screw upwards, ensuring the installation and extension path of the linear lead screw, avoiding interference between the linear lead screw and the motor mounting plate, ensuring that the linear lead screw can move smoothly in the vertical direction, and preventing the lead screw from deviating or moving poorly due to structural obstruction, which would affect the accuracy of thrust measurement.

[0021] In one embodiment of this utility model, a relief portion is provided on one side of the support base plate corresponding to the assembly groove.

[0022] Compared with existing technologies, the technical effect achieved by adopting this technical solution is that the recessed part makes the installation or disassembly of the drive unit more convenient.

[0023] In one embodiment of this utility model, the base also includes multiple suction cups, which are fixedly disposed on the lower side of the support base plate to fix the dynamic thrusting tool on the worktable.

[0024] Compared with existing technologies, the technical effects achieved by this solution are as follows: multiple suction cups are fixedly installed on the lower side of the support base plate, which can firmly fix the dynamic thrusting tool on the worktable, preventing the entire device from shifting due to external forces or reaction forces during the measurement process, ensuring the positional stability of the measuring device during operation, providing a stable foundation for accurately measuring the thrust of the lead screw motor, and avoiding measurement errors caused by the overall movement of the device.

[0025] By adopting the technical solution of this utility model, the following technical effects can be achieved:

[0026] (1) It solves the problem that the lead screw shakes or deviates when the measurement process is dynamic and the weight pushes it, so that the thrust of the lead screw motor in the vertical pushing direction can be accurately measured;

[0027] (2) It ensures that the load-bearing part is pushed upward in a straight line during operation, which further improves the accuracy of thrust measurement;

[0028] (3) The dynamic thrusting tool provided has a simple structure. The maximum thrust of the screw motor can be obtained simply by adding or removing weights on the load-bearing part and observing the pushing situation. It is easy to operate. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the structure of a dynamic thrusting tool provided by this utility model;

[0031] Figure 2 for Figure 1 A structural schematic diagram of a dynamic thrusting device from another perspective;

[0032] Figure 3 for Figure 1 A structural schematic diagram of a dynamic thrusting device from another perspective;

[0033] Figure 4 for Figure 1 A structural schematic diagram of a dynamic thrusting device from another perspective;

[0034] Figure 5 for Figure 1 A structural schematic diagram of a dynamic thrusting device from another perspective;

[0035] Figure 6 for Figure 1 A schematic diagram of the structure of a dynamic thrusting device from another perspective.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10. Lead screw motor; 101. Linear lead screw; 102. Drive unit; 103. Nut; 20. Base; 201. Motor mounting plate; 202. Support base plate; 203. Assembly slot; 204. Recessed part; 205. Suction cup; 30. Support part; 301. Linear guide shaft; 40. Limiting plate; 401. Deep groove ball bearing; 50. Load-bearing part; 501. First support plate; 502. First mating position; 503. Second mating position; 504. Second support plate; 505. Third mating position; 506. Linear bearing. Detailed Implementation

[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0039] This utility model provides a dynamic thrusting tool, including: a lead screw motor 10, a base 20, a support part 30, a limiting plate 40, and a load-bearing part 50. The lead screw motor 10 includes a driving part 102 and a linear lead screw 101 that cooperate with each other. The base 20 is provided with a motor mounting position, and the driving part 102 is fixedly installed in the motor mounting position, with the connection side of the driving part 102 and the linear lead screw 101 facing upward. The support part 30 is fixedly provided on the upper end face of the base 20. The limiting plate 40 is fixedly connected to the end of the support part 30 away from the base 20. The limiting plate 40 has a limiting hole at the position corresponding to the thrust axis of the driving part 102, and the linear lead screw 101 is set through the limiting hole to realize that the linear lead screw 101 coincides with the thrust axis. The load-bearing part 50 is connected to the linear lead screw 101 to realize vertical up and down movement along the linear lead screw 101.

[0040] like Figure 1As shown, specifically, the output end of the drive unit 102 is connected to the linear lead screw 101. When the drive unit 102 is mounted on the base 20, the output end of the drive unit 102 faces upwards from the base 20, causing the linear lead screw 101 to extend vertically upwards from the upper surface of the base 20. At this time, the thrust direction of the drive unit 102 is vertically upwards, and the resulting thrust axis extends vertically upwards from the output port of the drive unit 102, forming a perpendicular line with the upper surface of the base 20. The limiting plate 40 and the base... The upper end face of the seat 20 is set parallel to the ground. At the position where the thrust axis coincides with the limit plate 40, a limit hole is opened. The limit hole is a circle corresponding to the cross-sectional shape of the linear lead screw 101. The size of the limit hole is only enough to allow the linear lead screw 101 to pass through. Under the action of the drive unit 102, the linear lead screw 101 can rotate along the thrust axis. This avoids the center of gravity of the linear lead screw 101 shifting due to the weight placed on the load-bearing part 50 when the drive unit 102 is started, thus preventing it from shifting from the thrust axis of the lead screw motor 10 during the movement.

[0041] Furthermore, the surface of the linear lead screw 101 is provided with threads, and a matching nut 103 is fitted on the linear lead screw 101. The nut 103 can convert the rotational torque into up-and-down movement along the direction of the linear lead screw 101. The nut 103 is fixedly connected to one end of the load-bearing part 50, and the other end of the load-bearing part 50 is slidably connected to the linear guide rail. The linear guide rail is a guide rail set between the upper end face of the base 20 and the limiting plate 40 and parallel to the linear lead screw 101. This setting is used to limit the synchronous rotation of the nut 103 and the linear lead screw 101, so as to realize that the nut 103 moves up and down along the direction of the linear lead screw 101, and drives the load-bearing part 50 to move up and down synchronously.

[0042] Furthermore, by increasing or decreasing the weight of the weights on the load-bearing part 50, and by observing whether the lead screw motor 10 can be pushed, if it can be pushed with difficulty or just cannot be pushed, the total weight of the weights on the load-bearing part 50 and the weight of the load-bearing part 50 and the nut 103 is the maximum thrust of the lead screw motor 10 in its thrust direction.

[0043] In one embodiment of this utility model, the limiting plate 40 includes a deep groove ball bearing 401; the outer ring of the deep groove ball bearing 401 is fixedly embedded in the limiting hole, and the inner ring of the deep groove ball bearing 401 is sleeved on the rod body of the linear lead screw 101.

[0044] like Figure 2 As shown, the deep groove ball bearing 401 is a common type of bearing. It is sleeved on the linear lead screw 101 to prevent the linear lead screw 101 from directly contacting the limiting hole, thus avoiding wear during rotation.

[0045] In one embodiment of this utility model, the lead screw motor 10 further includes a nut 103, which is movably connected to the lead screw and moves up and down along the direction of the lead screw; the load-bearing part 50 includes a first support plate 501, which is provided with a first mating position 502, and the first mating position 502 is fixedly connected to the nut 103.

[0046] like Figure 3 and Figure 4 As shown, specifically, the first support plate 501 is an arc-shaped plate, and the first support plate 501 is set parallel to the upper end surface of the base 20. The first mating position 502 of the first support plate 501 has a slot that communicates with the outside for the passage of the linear lead screw 101. There are three through holes around the slot, and the nut 103 has three positioning screw holes corresponding to the through holes. The positioning screws pass through the through holes and engage with the positioning screw holes to achieve a fixed connection between the first support plate 501 and the nut 103.

[0047] In one embodiment of the present invention, the support part 30 includes at least one linear guide shaft 301, which is vertically fixed to the upper side of the base 20; the first support plate 501 is also provided with a second mating position 503, which is slidably connected to the side of the linear guide shaft 301.

[0048] Specifically, a sliding groove is provided at the second mating position 503 of the first support plate 501. The sliding groove is fitted onto the linear guide shaft 301, so that the first support plate 501 always remains parallel to the upper surface of the base 20 in a static or moving state.

[0049] In one embodiment of this utility model, the support part 30 includes multiple linear guide shafts 301; the load-bearing part 50 also includes a second support plate 504, which is slidably connected to any one or more linear guide shafts 301, and the second support plate 504 is disposed above the first support plate 501; wherein, the lateral area of ​​the second support plate 504 is larger than the lateral area of ​​the first support plate 501, and the second support plate 504 is provided with a third mating position 505, which is used to mate with the first support plate 501 to realize the second support plate 504 moving up and down along the direction of the linear guide shafts 301.

[0050] like Figure 4 As shown, specifically, it includes three linear guide shafts 301, wherein the upper end surface of the base 20 is a circular surface, and the positions of the three linear guide shafts 301 and the linear lead screw 101 are distributed at equal intervals along the circumference of the circular surface.

[0051] Furthermore, the second mating position 503 of the first support plate 501 is slidably connected to a linear guide shaft 301 near the linear lead screw 101, and the second support plate 504 is slidably connected to the remaining two linear guide shafts 301. When the first support plate 501 moves upward to fit against the bottom of the second support plate 504, it drives the second support plate 504 to slide up and down along the direction of the linear guide shafts 301.

[0052] Furthermore, the third mating position 505 is provided with relief grooves at the positions corresponding to the linear lead screw 101 and the linear guide shaft 301 connected to the first support plate 501, so as to allow the linear lead screw 101 and the linear guide shaft 301 connected to the first support plate 501 to pass through.

[0053] Preferably, the area of ​​the second support plate 504 is larger than the area of ​​the first support plate 501. When the first support plate 501 and the second support plate 504 are attached, the complete load-bearing plate has four combined components for supporting its upward movement in a straight line, which can bear greater weight and move more smoothly.

[0054] Preferably, the load-bearing part 50 further includes a linear bearing 506; wherein, the first support plate 501 and the second support plate 504 are respectively provided with linear bearings 506, and the linear bearings 506 are sleeved on the linear guide shaft 301, so that the first support plate 501 and the second support plate 504 can slide up and down along the linear guide shaft 301.

[0055] Preferably, the surface of the linear guide shaft 301 is chrome-plated to reduce wear between the linear bearing 506 and the linear guide shaft 301.

[0056] In one embodiment of this utility model, the base 20 includes a motor mounting plate 201, a support base plate 202, and multiple fixing columns; wherein, the motor mounting plate 201 is located above the support base plate 202, and the motor mounting plate 201 and the support base plate 202 are fixedly connected by the fixing columns, so that a motor mounting position is formed between the motor mounting plate 201 and the support base plate 202.

[0057] like Figure 5 As shown, specifically, the fixing post is a hexagonal stud, the motor mounting plate 201 and the support base plate 202 are parallel to each other, the drive unit 102 is located between the two, and the drive side of the drive unit 102 is fixed to the lower side of the motor mounting plate 201 by positioning screws.

[0058] In one embodiment of this utility model, a mounting groove 203 is provided on one side of the motor mounting plate 201. The mounting groove 203 is used to extend the linear lead screw 101 upward.

[0059] like Figure 6As shown, specifically, the assembly slot 203 is connected to the outside, which makes it easier to disassemble and assemble the lead screw motor 10.

[0060] Preferably, the support base plate 202 is provided with a relief part 204 on one side corresponding to the assembly groove 203, which further facilitates the disassembly and assembly of the lead screw motor 10.

[0061] Preferably, the base 20 also includes a plurality of suction cups 205, which are fixedly disposed on the lower side of the support base plate 202 to fix the dynamic thrusting tool on the worktable.

[0062] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A dynamic thrusting tool, characterized in that, include: A lead screw motor (10) includes a drive unit (102) and a linear lead screw (101), the linear lead screw (101) being driven by the drive unit (102); The base (20) is provided with a motor mounting position for mounting the lead screw motor (10); The load-bearing part (50) is connected to the linear lead screw (101) to enable vertical up-and-down movement along the linear lead screw (101). Support (30), the support (30) is fixedly disposed on the upper end surface of the base (20); A limiting plate (40) is fixedly connected to one end of the support (30) away from the base (20); The limiting plate (40) has a limiting hole at the position corresponding to the thrust axis of the drive unit (102). The central axis of the area enclosed by the limiting hole coincides with the thrust axis. The end of the linear screw (101) away from the base (20) is inserted into the limiting hole.

2. The dynamic thrusting tool according to claim 1, characterized in that, The limiting plate (40) includes a deep groove ball bearing (401); The outer ring of the deep groove ball bearing (401) is fixedly embedded in the limiting hole, and the inner ring of the deep groove ball bearing (401) is sleeved on the rod body of the linear lead screw (101).

3. The dynamic thrusting tool according to claim 1, characterized in that, The lead screw motor (10) also includes a nut (103), which is movably connected to the linear lead screw (101) and moves up and down along the linear lead screw (101); The load-bearing part (50) includes a first support plate (501), the first support plate (501) is provided with a first mating position (502), and the first mating position (502) is fixedly connected to the nut (103).

4. The dynamic thrusting tool according to claim 3, characterized in that, The support (30) includes at least one linear guide shaft (301), which is vertically fixed to the upper side of the base (20). The first support plate (501) is also provided with a second mating position (503), which is slidably connected to the side of the linear guide shaft (301).

5. The dynamic thrusting tool according to claim 4, characterized in that, The support (30) includes a plurality of the linear guide shafts (301); The load-bearing part (50) further includes a second support plate (504), which is slidably connected to any one or more linear guide shafts (301), and the second support plate (504) is located above the first support plate (501). The second support plate (504) has a larger lateral area than the first support plate (501), and the second support plate (504) is provided with a third mating position (505), which is used to connect with the first support plate (501) to enable the second support plate (504) to move up and down along the direction of the linear guide shaft (301).

6. The dynamic thrusting tool according to claim 5, characterized in that, The load-bearing part (50) also includes a linear bearing (506); The first support plate (501) and the second support plate (504) are respectively provided with linear bearings (506), and the linear bearings (506) are sleeved on the linear guide shaft (301) so that the first support plate (501) and the second support plate (504) can slide up and down along the linear guide shaft (301).

7. The dynamic thrusting tool according to claim 1, characterized in that, The base (20) includes a motor mounting plate (201), a support base plate, and multiple fixing columns; The motor mounting plate (201) is located above the support base plate, and the motor mounting plate (201) and the support base plate are fixedly connected by a fixing column, so that the motor mounting position is formed between the motor mounting plate (201) and the support base plate.

8. The dynamic thrusting tool according to claim 7, characterized in that, The motor mounting plate (201) has an assembly groove (203) on one side, which is used to extend the linear lead screw (101) upward.

9. The dynamic thrusting tool according to claim 8, characterized in that, The supporting base plate has a recess (204) on one side corresponding to the assembly groove (203).

10. The dynamic thrusting tool according to claim 7, characterized in that, The base (20) also includes a plurality of suction cups (205), which are fixedly disposed on the lower side of the support base plate to fix the dynamic thrusting tool on the worktable.

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