A carrier pull-out force fixture

Abstract

This utility model relates to the technical field of coil carrier testing devices, and discloses a carrier pull-out force fixture, including an operating table with an assembly block fixedly installed on the top of the operating table; a lifting assembly including a top plate, a guide rod, and a lead screw; a pull-out force testing device; and a suspension unit including a first pull rod, a second pull rod, and semicircular blocks, with limit units provided on the outer walls of the two sets of semicircular blocks. By setting the lifting assembly, the pull-out force testing device is installed on one side of a rectangular mounting plate. The experimenter rotates the handwheel to drive the lead screw to rotate, and the lead screw transmission causes the lifting plate, the rectangular mounting plate, and the pull-out force testing device to rise as a whole, suspending the carrier between the two sets of semicircular blocks. The limit units are used to limit the carrier and prevent slippage during the experiment. The pull-out force testing device performs pull-out force testing on the carrier as it gradually rises, avoiding the problem of inconsistent carrier quality due to different batches.

Description

Technical Field

[0001] This utility model relates to the technical field of coil carrier detection devices, and in particular to a carrier pull-out force fixture. Background Technology

[0002] The linear motor coils in existing electronic products and the zoom coils in mobile phone cameras are all formed by winding copper wire around the outer wall of a carrier to create a miniature motor. The carrier has an appearance similar to a grooved wheel structure, and its actual diameter is only about 5mm.

[0003] During the production process, different batches may result in inconsistent carrier quality. In order to ensure that the carrier quality meets customer needs, it is necessary to conduct quality testing, one important aspect of which is pull-out force testing.

[0004] For example, the invention with application number CN201710240494.4 discloses a pull-out force testing fixture, including a base, a fixing mechanism and a pull-out assembly. The fixing mechanism includes a positioning part and a clamping part. The positioning part includes a vertical plate and a movable support member. The vertical plate is disposed on the base. The movable support member is disposed on the vertical plate with adjustable position relative to the vertical plate. The clamping part is disposed on the base relative to the movable support member. The pull-out assembly includes a pull-out slider. The pull-out slider is movably disposed on the side of the vertical plate facing the clamping part in a direction perpendicular to the base.

[0005] Due to the small size of the carrier, existing devices are not suitable for certain situations. In addition, carrier slippage may occur during the testing process, affecting the test results.

[0006] Therefore, those skilled in the art have provided a carrier pull-out force fixture to solve the problems mentioned in the background art. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a carrier pull-out force fixture, which solves the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0009] A carrier pull-out force fixture includes an operating table with an assembly block fixedly mounted on its top; a lifting assembly fixedly mounted on the top of the operating table, the lifting assembly including a top plate, a guide rod, and a lead screw, the lead screw and the guide rod jointly and movably passing through a lifting plate, the lead screw and the lifting plate being threadedly connected; a pull-out force detection device, a rectangular mounting plate fixedly connected to one side of the lifting plate, the pull-out force detection device being fixedly mounted on the rectangular mounting plate; and a suspension unit including a first pull rod, a second pull rod, and two sets of semicircular blocks, the outer walls of the two sets of semicircular blocks being provided with limit units, the limit units including a cylindrical tube and a limit rod, the limit rod and the cylindrical tube being movably connected.

[0010] According to the aforementioned carrier pull-out force fixture, the top plate and the operating table are parallel to each other, the guide rod is fixedly installed between the operating table and the top plate, and the lead screw and the guide rod are parallel to each other.

[0011] According to the aforementioned carrier pull-out force fixture, an inclined reinforcing rod is also fixedly connected between the operating table and the top plate. A handwheel is movably installed at the top of the top plate, and the bottom end of the handwheel movably passes through the top plate and is fixedly connected to the top end of the lead screw. The bottom end of the lead screw is movably installed at the top of the operating table through a bearing.

[0012] According to the aforementioned carrier pull-out force fixture, the lifting plate is located between the top plate and the operating table, the lifting plate and the operating table are parallel to each other, the pull-out force detection device is perpendicular to the operating table, and the detection end of the pull-out force detection device is connected to the first pull rod.

[0013] According to the carrier pull-out force fixture, a second pull rod is fixedly installed in the groove of the assembly block. The first pull rod and the second pull rod are on the same vertical plane. Semicircular blocks are respectively fixedly installed at the ends of the first pull rod and the second pull rod that are close to each other. A groove is opened at one end of each set of semicircular blocks.

[0014] According to the aforementioned carrier pull-out force fixture, the limiting rod is U-shaped and consists of two sets. One end of each set of limiting rods movably penetrates the cylindrical tube, and the other end of each set of limiting rods can be movably engaged in the groove of the corresponding semicircular block.

[0015] According to the carrier pull-out force fixture, both sets of limiting rods are fixedly installed with retaining rings at one end inside the cylindrical cavity, and compression springs are also sleeved on the outer wall of the limiting rods, with the compression springs located between the retaining rings and the inner wall of the cylindrical cavity.

[0016] This utility model provides a carrier pull-out force fixture with the following advantages: By setting a lifting component on the operating table, the pull-out force detection device is installed on one side of the rectangular mounting plate. The experimenter drives the screw to rotate by rotating the handwheel. The screw transmission causes the lifting plate, the rectangular mounting plate and the pull-out force detection device to rise as a whole, and the carrier is hung between two sets of semicircular blocks. A limiting unit is set to limit the carrier and prevent slippage during the experiment. The pull-out force detection device performs pull-out force detection on the carrier as it rises, avoiding the problem of inconsistent carrier quality due to different batches. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of a carrier pull-out force fixture according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of a carrier pull-out force fixture according to the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the suspension unit of a carrier pull-out force fixture according to the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the limiting unit of a carrier pull-out force fixture according to the present invention;

[0021] Figure 5 This is a cross-sectional structural diagram of the limiting unit of a carrier pull-out force fixture according to this utility model.

[0022] Legend:

[0023] 10. Operating platform; 11. Pull-out force testing equipment; 12. Lifting assembly; 13. Reinforcing rod; 14. Assembly block; 15. Top plate; 16. Lifting plate; 17. Lead screw; 18. Guide rod; 19. Rectangular mounting plate; 20. Handwheel; 21. First pull rod; 22. Second pull rod; 23. Limiting unit; 24. Semicircular block; 25. Cylindrical tube; 26. Limiting rod; 27. Retaining ring; 28. Compression spring. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figure 1-5As shown, this utility model is a carrier pull-out force fixture, including an operating table 10, with an assembly block 14 fixedly installed on the top of the operating table 10; a lifting assembly 12, which is fixedly installed on the top of the operating table 10, and includes a top plate 15, a guide rod 18, and a lead screw 17. The lead screw 17 and the guide rod 18 jointly pass through a lifting plate 16, and the lead screw 17 and the lifting plate 16 are threadedly connected; a pull-out force detection device 11, with a rectangular mounting plate 19 fixedly connected to one side of the lifting plate 16, and the pull-out force detection device 11 is fixedly installed on the rectangular mounting plate 19; and a suspension unit, which includes a first pull rod 21, a second pull rod 22, and a semi-circular block 24. There are two sets of semi-circular blocks 24, and a limiting unit 23 is provided on the outer wall of the two sets of semi-circular blocks 24. The limiting unit 23 includes a cylindrical tube 25 and a limiting rod 26, and the limiting rod 26 and the cylindrical tube 25 are movably connected.

[0026] It is worth noting that the pull-out force testing device 11 is used to detect pull-out force data. The pull-out force testing device 11 is existing technology, and its model is SF-500.

[0027] This application involves setting a lifting assembly 12 on the operating table 10, with a pull-out force testing device 11 installed on one side of a rectangular mounting plate 19. The experimenter rotates the handwheel 20 to drive the lead screw 17 to rotate. The lead screw 17 drives the lifting plate 16, the rectangular mounting plate 19, and the pull-out force testing device 11 to rise as a whole, suspending the carrier between two sets of semicircular blocks 24. A limiting unit 23 is set to limit the carrier and prevent slippage during the experiment. The pull-out force testing device 11 performs pull-out force testing on the carrier as it rises gradually, avoiding the problem of inconsistent carrier quality due to different batches.

[0028] Among them, such as Figure 1-2 As shown, the top plate 15 and the operating table 10 are parallel to each other, the guide rod 18 is fixedly installed between the operating table 10 and the top plate 15, and the lead screw 17 and the guide rod 18 are parallel to each other.

[0029] Specifically, a guide rod 18 is fixedly installed between the operating table 10 and the top plate 15, and the lead screw 17 and the guide rod 18 are parallel to each other to support the top plate 15.

[0030] An inclined reinforcing rod 13 is fixedly connected between the operating table 10 and the top plate 15. A handwheel 20 is movably installed at the top of the top plate 15. The bottom end of the handwheel 20 movably passes through the top plate 15 and is fixedly connected to the top end of the lead screw 17. The bottom end of the lead screw 17 is movably installed at the top of the operating table 10 through a bearing.

[0031] Specifically, by setting a reinforcing rod 13 in an inclined state to be fixedly connected between the operating table 10 and the top plate 15, the stability of the device is further improved. The bottom end of the handwheel 20 is movably inserted through the top plate 15 and fixedly connected to the top end of the lead screw 17. The bottom end of the lead screw 17 is movably installed on the top end of the operating table 10 through a bearing, so that the handwheel 20 rotates synchronously and drives the lead screw 17 to rotate. The lead screw 17 and the lifting plate 16 are connected by a thread, thereby driving the lifting plate 16 to rise and fall.

[0032] Among them, such as Figure 3 As shown, the lifting plate 16 is located between the top plate 15 and the operating table 10, and the lifting plate 16 and the operating table 10 are parallel to each other. The pull-out force testing device 11 is perpendicular to the operating table 10, and the testing end of the pull-out force testing device 11 is connected to the first pull rod 21. The second pull rod 22 is fixedly installed in the groove of the assembly block 14. The first pull rod 21 and the second pull rod 22 are on the same vertical plane. The semicircular blocks 24 are respectively fixedly installed at the ends of the first pull rod 21 and the second pull rod 22 that are close to each other. A groove is opened at one end of each set of semicircular blocks 24.

[0033] Specifically, by setting the lifting plate 16 to be parallel to the operating table 10, the pull-out force testing device 11 to be perpendicular to the operating table 10, the testing end of the pull-out force testing device 11 to be connected to the first pull rod 21, the second pull rod 22 to be fixedly installed in the groove of the assembly block 14, the first pull rod 21 and the second pull rod 22 to be on the same vertical plane, and the semi-circular blocks 24 to be fixedly installed at the ends of the first pull rod 21 and the second pull rod 22 that are close to each other, and the carrier to be fitted on the outer wall of the two sets of semi-circular blocks 24.

[0034] Among them, such as Figure 4-5 As shown, the limiting rod 26 is U-shaped, and there are two sets of limiting rods 26. One end of each set of limiting rods 26 movably passes through the cylindrical tube 25, and the other end of each set of limiting rods 26 can be movably engaged in the groove of the corresponding semi-circular block 24. A retaining ring 27 is fixedly installed at one end of each set of limiting rods 26 inside the cavity of the cylindrical tube 25. A compression spring 28 is also sleeved on the outer wall of the limiting rod 26, and the compression spring 28 is located between the retaining ring 27 and the inner wall of the cylindrical tube 25.

[0035] Specifically, to prevent the carrier from slipping off the semicircular blocks 24 during the testing process, grooves are provided at one end of both sets of semicircular blocks 24, and one end of each set of limiting rods 26 movably penetrates the cylindrical tube 25. The other ends of the two sets of limiting rods 26 are movably engaged in the grooves of the corresponding semicircular blocks 24. Retaining rings 27 are fixedly installed at one end of each set of limiting rods 26 inside the cavity of the cylindrical tube 25. By providing a compression spring 28, the compression spring 28 provides a thrust to the retaining ring 27, causing the two sets of limiting rods 26 to move closer to each other, ensuring that the other end of the limiting rod 26 is movably engaged in the grooves of the semicircular blocks 24.

[0036] It should be noted that during the testing process, some carriers may easily slip off the outer wall of the semicircular block 24, affecting the testing. In this case, the limiting unit 23 can be used to movably engage the other ends of the two sets of limiting rods 26 in the grooves of the corresponding semicircular block 24. In order to ensure the accuracy of the test data and avoid the influence of the compression spring 28, a standard carrier should be used for comparative testing to obtain more accurate data. For some carriers that are not easy to slip off, the limiting unit 23 can be omitted to improve the testing efficiency.

[0037] The specific working principle of the carrier pull-out force fixture of this utility model is as follows: This application sets a lifting component 12 on the operating table 10, and the pull-out force detection device 11 is installed on one side of the rectangular mounting plate 19. The experimenter drives the screw 17 to rotate by rotating the handwheel 20. The screw 17 drives the lifting plate 16, the rectangular mounting plate 19 and the pull-out force detection device 11 to rise as a whole, and hang the carrier between two sets of semi-circular blocks 24. A limiting unit 23 is set to limit the carrier to prevent slippage during the experiment. The pull-out force detection device 11 performs pull-out force detection on the carrier as it rises, avoiding the problem of inconsistent carrier quality due to different batches.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A carrier pull-out force fixture, characterized in that, include: The operating table (10) has an assembly block (14) fixedly installed on its top. The lifting assembly (12) is fixedly installed on the top of the operating table (10). The lifting assembly (12) includes a top plate (15), a guide rod (18) and a lead screw (17). The lead screw (17) and the guide rod (18) move together through the lifting plate (16). The lead screw (17) and the lifting plate (16) are connected by threads. Pull-out force testing device (11), a rectangular mounting plate (19) is fixedly connected to one side of the lifting plate (16), and the pull-out force testing device (11) is fixedly installed on the rectangular mounting plate (19); The suspension unit includes a first tie rod (21), a second tie rod (22), and a semicircular block (24). There are two sets of semicircular blocks (24). Limiting units (23) are provided on the outer walls of the two sets of semicircular blocks (24). The limiting unit (23) includes a cylindrical tube (25) and a limiting rod (26). The limiting rod (26) and the cylindrical tube (25) are in a movable connection relationship.

2. The carrier pull-out force fixture according to claim 1, characterized in that: The top plate (15) and the operating table (10) are parallel to each other. The guide rod (18) is fixedly installed between the operating table (10) and the top plate (15). The lead screw (17) and the guide rod (18) are parallel to each other.

3. The carrier pull-out force fixture according to claim 1, characterized in that: A reinforcing rod (13) in an inclined state is also fixedly connected between the operating table (10) and the top plate (15). A handwheel (20) is movably installed at the top of the top plate (15). The bottom end of the handwheel (20) movably passes through the top plate (15) and is fixedly connected to the top end of the lead screw (17). The bottom end of the lead screw (17) is movably installed at the top of the operating table (10) through a bearing.

4. The carrier pull-out force fixture according to claim 1, characterized in that: The lifting plate (16) is located between the top plate (15) and the operating table (10). The lifting plate (16) and the operating table (10) are parallel to each other. The pull-out force testing device (11) is perpendicular to the operating table (10). The testing end of the pull-out force testing device (11) is connected to the first pull rod (21).

5. The carrier pull-out force fixture according to claim 1, characterized in that: The second pull rod (22) is fixedly installed in the groove of the assembly block (14). The first pull rod (21) and the second pull rod (22) are on the same vertical plane. The semicircular blocks (24) are fixedly installed at the ends of the first pull rod (21) and the second pull rod (22) that are close to each other. The two sets of semicircular blocks (24) have grooves at one end.

6. The carrier pull-out force fixture according to claim 1, characterized in that: The limiting rod (26) is U-shaped and consists of two sets. One end of each set of limiting rods (26) can be movably inserted through the cylindrical tube (25), and the other end of each set of limiting rods (26) can be movably engaged in the groove of the corresponding semicircular block (24).

7. The carrier pull-out force fixture according to claim 6, characterized in that: Both sets of limiting rods (26) have a retaining ring (27) fixedly installed at one end inside the cylindrical tube (25). A compression spring (28) is also sleeved on the outer wall of the limiting rod (26), and the compression spring (28) is located between the retaining ring (27) and the inner wall of the cylindrical tube (25).

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