Gap detection device for thread gap of workpiece assembly

Abstract

The utility model discloses a gap detection device for the thread gap of a workpiece assembly. The utility model relates to the technical field of thread gap detection. The gap detection device comprises: a fixed seat having a first fixed plate and a movable plate, the first fixed plate being fixedly connected to one of the first workpiece and the second workpiece, the movable plate being fixedly connected to the other of the first workpiece and the second workpiece, and the movable plate being movable relative to the first fixed plate; a driving mechanism driving the movable plate to move, and a measuring mechanism being used to measure the spacing distance between the first fixed plate and the movable plate. By setting a driving mechanism to drive the movable plate to move, and the measuring mechanism measuring the spacing distance between the first fixed plate and the movable plate, the thread gap of the workpiece assembly can be measured more accurately, which is beneficial to improving the accuracy of the measurement result of the thread gap of the workpiece assembly, thereby controlling the thread gap of the workpiece assembly according to the measurement result, and reducing the risk of the workpiece assembly being stuck.

Description

Technical Field

[0001] The utility model relates to the technical field of thread gap detection, in particular to a gap detection device for thread gaps of a workpiece component. Background Art

[0002] In the related art, the thread gap of the workpiece assembly is prone to exceed the tolerance, which may cause the workpiece assembly to get stuck under long-term stress. Therefore, there is an urgent need for a gap detection device that can accurately detect the thread gap and accurately measure the thread gap to reduce the risk of the workpiece assembly getting stuck. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a gap detection device for a thread gap of a workpiece assembly, which can accurately measure the thread gap of the workpiece assembly and reduce the risk of the workpiece assembly being stuck.

[0004] According to the gap detection device of the thread gap of the workpiece assembly of the embodiment of the present invention, the workpiece assembly includes a first workpiece and a second workpiece, the first workpiece is sleeved on the second workpiece and threadedly connected to the second workpiece, and the gap detection device includes: a fixed seat, the fixed seat has a first fixed plate and a movable plate, the first fixed plate and the movable plate are arranged opposite to each other and spaced apart, the first fixed plate is suitable for being fixedly connected to one of the first workpiece and the second workpiece, the movable plate is suitable for being fixedly connected to the other of the first workpiece and the second workpiece, and the movable plate is movable relative to the first fixed plate along the arrangement direction of the movable plate and the first fixed plate; a driving mechanism and a measuring mechanism, the driving mechanism is connected to the movable plate to drive the movable plate to move, and the measuring mechanism is used to measure the spacing distance between the first fixed plate and the movable plate.

[0005] According to the gap detection device for the thread gap of a workpiece assembly according to an embodiment of the present invention, a driving mechanism is set to drive the movable plate to move, and a measuring mechanism measures the spacing distance between the first fixed plate and the movable plate. This can more accurately measure the thread gap of the workpiece assembly, which is beneficial to improving the accuracy of the measurement result of the thread gap of the workpiece assembly, thereby controlling the thread gap of the workpiece assembly according to the measurement result and reducing the risk of the workpiece assembly being stuck.

[0006] In some embodiments of the present invention, the driving mechanism includes: a driving screw, a movable plate is formed with a threaded hole, the driving screw is passed through the threaded hole, and the driving screw extends along the arrangement direction of the movable plate and the first fixed plate, and the movable plate is driven to move by rotating the driving screw.

[0007] In some embodiments of the present invention, the movable plate includes: a movable plate body and a threaded sleeve, the threaded sleeve is passed through the movable plate body and fixed to the movable plate body, and the threaded sleeve defines a threaded hole.

[0008] In some embodiments of the present invention, the first fixing plate is formed with a first assembly hole corresponding to the threaded hole, and the driving screw is passed through the first assembly hole and is rotatable relative to the first fixing plate.

[0009] In some embodiments of the present invention, the driving screw is fixedly provided with a driving operating part, and the driving operating part is located on a side of the first fixed plate away from the movable plate.

[0010] In some embodiments of the present invention, a side wall of the driving operating portion forms an anti-slip structure.

[0011] In some embodiments of the present invention, a workpiece assembly notch is formed at an edge of the first fixing plate.

[0012] In some embodiments of the present invention, the fixed seat also has a second fixed plate, which is located on the side of the movable plate away from the first fixed plate. The second fixed plate is formed with a second assembly hole corresponding to the threaded hole, and the end of the driving screw is assembled in the second assembly hole and can rotate relative to the second fixed plate.

[0013] In some embodiments of the present invention, the fixing seat further has a connecting plate, and the first fixing plate and the second fixing plate are both fixedly mounted on the connecting plate.

[0014] In some embodiments of the present invention, the measuring mechanism is a micrometer.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is an assembly diagram of a gap detection device and a workpiece assembly according to an embodiment of the utility model.

[0018] Reference numerals:

[0019] Gap detection device 100;

[0020] Fixed seat 1;

[0021] A first fixing plate 11;

[0022] First assembly hole 111; workpiece assembly notch 112;

[0023] Moving plate 12;

[0024] Threaded hole 121; movable plate body 122; threaded sleeve 123; avoidance hole 124; through hole 125;

[0025] A second fixing plate 13;

[0026] A second assembly hole 131;

[0027] Connecting plate 14;

[0028] Driving mechanism 2;

[0029] Driving screw 21;

[0030] Driving operation part 211; Anti-slip structure 2111;

[0031] Measuring mechanism 3;

[0032] Workpiece assembly 200;

[0033] A first workpiece 201 and a second workpiece 202 . DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference below Figure 1 A gap detection device 100 for the thread gap of a workpiece assembly 200 according to an embodiment of the present invention is described. The workpiece assembly 200 includes a first workpiece 201 and a second workpiece 202, wherein the first workpiece 201 is sleeved on the second workpiece 202 and is screwed to the second workpiece 202. As some embodiments of the present application, an EPB caliper (Electronic Parking BrakeCaliper) includes a workpiece assembly 200, wherein the first workpiece 201 is a sleeve structure in the EPB caliper, and the second workpiece 202 is a screw structure in the EPB caliper, wherein the first workpiece 201 is sleeved on the second workpiece 202 and is screwed to the second workpiece 202. As some embodiments of the present application, the workpiece assembly 200 is a ball screw, wherein the first workpiece 201 is a sleeve structure of the ball screw, and the second workpiece 202 is a screw structure of the ball screw. The present application is described by taking the sleeve structure and the screw structure of the EPB caliper as an example.

[0039] like Figure 1 As shown, according to an embodiment of the present invention, a gap detection device 100 for a thread gap of a workpiece assembly 200, the gap detection device 100 includes: a fixed seat 1, the fixed seat 1 has a first fixed plate 11 and a movable plate 12, the first fixed plate 11 and the movable plate 12 are arranged opposite to each other and spaced apart, the first fixed plate 11 is suitable for being fixedly connected to one of the first workpiece 201 and the second workpiece 202, the movable plate 12 is suitable for being fixedly connected to the other of the first workpiece 201 and the second workpiece 202, the movable plate 12 is movable relative to the first fixed plate 11 along the arrangement direction of the movable plate 12 and the first fixed plate 11; a driving mechanism 2 and a measuring mechanism 3, the driving mechanism 2 is connected to the movable plate 12 to drive the movable plate 12 to move, and the measuring mechanism 3 is used to measure the spacing distance between the first fixed plate 11 and the movable plate 12.

[0040] The gap detection device 100 includes a fixed seat 1, a driving mechanism 2 and a measuring mechanism 3. The fixed seat 1 can provide stable support during the gap measurement process, thereby improving the accuracy of the measurement result of the gap detection device 100. The fixed seat 1 has a first fixed plate 11 and a movable plate 12. The first fixed plate 11 and the movable plate 12 are arranged opposite to each other, and the first fixed plate 11 and the movable plate 12 are arranged to be spaced apart to form an assembly space between the first fixed plate 11 and the movable plate 12. The assembly space can provide an assembly position for the workpiece assembly 200, so that the workpiece assembly 200 can be assembled in the assembly space between the first fixed plate 11 and the movable plate 12.

[0041] The first fixed plate 11 is suitable for being fixedly connected to one of the first workpiece 201 and the second workpiece 202, and the movable plate 12 is suitable for being fixedly connected to the other of the first workpiece 201 and the second workpiece 202. As some embodiments of the present application, the first fixed plate 11 is fixedly connected to the first workpiece 201, for example: a workpiece assembly notch 112 and a bolt hole may be formed on the first fixed plate 11, the bolt hole is communicated with the workpiece assembly notch 112, the first workpiece 201 is assembled in the workpiece assembly notch 112, and the bolt is inserted into the bolt hole and abuts against the first workpiece 201, so that the first workpiece 201 is fixed on the first fixed plate 11. The movable plate 12 is fixedly connected to the second workpiece 202, for example: an avoidance hole 124 and a bolt hole may be formed on the movable plate 12, the bolt hole is communicated with the avoidance hole 124, the second workpiece 202 is inserted into the avoidance hole 124, and the bolt is inserted into the bolt hole and abuts against the second workpiece 202, so that the second workpiece 202 is fixed on the movable plate 12. As some embodiments of the present application, the first fixed plate 11 is fixedly connected to the second workpiece 202, and the movable plate 12 is fixedly connected to the first workpiece 201. The present application is described by taking the first fixed plate 11 and the first workpiece 201 and the movable plate 12 and the second workpiece 202 as an example, so that the workpiece assembly 200 can be reliably assembled on the gap detection device 100.

[0042] The driving mechanism 2 is connected to the moving plate 12 to drive the moving plate 12 to move. As some embodiments of the present application, the driving mechanism 2 may be a driving screw 21, which is screwed to the moving plate 12 so that the driving screw 21 drives the moving plate 12 to move. As some embodiments of the present application, the driving mechanism 2 may be a motor, which is connected to the moving plate 12 so that the motor drives the moving plate 12 to move. Along the arrangement direction of the moving plate 12 and the first fixed plate 11, the moving plate 12 is movable relative to the first fixed plate 11. The moving plate 12 can move relative to the first fixed plate 11 in a direction close to the first fixed plate 11, and the moving plate 12 can move relative to the first fixed plate 11 in a direction away from the first fixed plate 11.

[0043] The measuring mechanism 3 can be, but is not limited to, set as a micrometer, an oil dipstick, etc. This application takes the measuring mechanism 3 as a micrometer as an example for explanation. As some embodiments of the present application, the movable plate 12 may have a through hole 125, and a part of the micrometer may be fixedly assembled in the through hole 125, and one end of the pin of the micrometer may abut against the first fixed plate 11. When the movable plate 12 moves relative to the first fixed plate 11, the micrometer may measure the spacing distance between the first fixed plate 11 and the movable plate 12. The value read by the measuring mechanism 3 may be used to calculate the distance change between the first fixed plate 11 and the movable plate 12. Since the first fixed plate 11 is fixedly connected to the first workpiece 201, and the movable plate 12 is fixedly connected to the second workpiece 202, the movable amount between the first fixed plate 11 and the movable plate 12 is the thread gap between the first workpiece 201 and the second workpiece 202. Thus, the thread gap between the first workpiece 201 and the second workpiece 202 may be obtained by calculation. By controlling the thread gap between the first workpiece 201 and the second workpiece 202, the risk of the workpiece assembly 200 being stuck may be reduced. Reducing the risk of the workpiece assembly 200 being stuck may improve the sensitivity of the vehicle during braking.

[0044] Specifically, the fixed seat 1 has a first fixed plate 11 and a movable plate 12, the first fixed plate 11 and the movable plate 12 are arranged opposite to each other, and the first fixed plate 11 and the movable plate 12 are arranged spaced apart, and the workpiece assembly 200 can be assembled in the assembly space between the first fixed plate 11 and the movable plate 12. The first fixed plate 11 is fixedly connected to the first workpiece 201, the movable plate 12 is fixedly connected to the second workpiece 202, and the axes of the first workpiece 201 and the second workpiece 202 are configured as the same straight line, which is conducive to improving the accuracy of the gap measurement result between the first workpiece 201 and the second workpiece 202. Along the arrangement direction of the movable plate 12 and the first fixed plate 11, the driving mechanism 2 is connected to the movable plate 12 to drive the movable plate 12 to be movable relative to the first fixed plate 11. When the movable plate 12 moves relative to the first fixed plate 11, the measuring mechanism 3 reads the value to calculate the distance change between the first fixed plate 11 and the movable plate 12, thereby obtaining the thread gap between the first workpiece 201 and the second workpiece 202. By controlling the thread gap between the first workpiece 201 and the second workpiece 202, the risk of the workpiece assembly 200 being stuck can be reduced.

[0045] Therefore, by setting up a driving mechanism 2 to drive the movable plate 12 to move, and the measuring mechanism 3 to measure the spacing distance between the first fixed plate 11 and the movable plate 12, the thread gap of the workpiece assembly 200 can be measured more accurately, which is beneficial to improving the accuracy of the measurement result of the thread gap of the workpiece assembly 200, thereby controlling the thread gap of the workpiece assembly 200 according to the measurement result, reducing the risk of the workpiece assembly 200 being stuck, and thereby improving the sensitivity of the vehicle during braking.

[0046] In some embodiments of the present invention, Figure 1As shown, the driving mechanism 2 may include: a driving screw 21, the movable plate 12 is formed with a threaded hole 121, the driving screw 21 is passed through the threaded hole 121, and the driving screw 21 extends along the arrangement direction of the movable plate 12 and the first fixed plate 11, and the movable plate 12 is driven to move by rotating the driving screw 21.

[0047] The driving mechanism 2 may include a driving screw 21, and the movable plate 12 is formed with a threaded hole 121. The size and shape of the threaded hole 121 are adapted to the size and shape of the driving screw 21, so that the driving screw 21 can be inserted into the threaded hole 121, and the movable plate 12 can be driven to move by rotating the driving screw 21. The driving screw 21 extends along the arrangement direction of the movable plate 12 and the first fixed plate 11. When the driving screw 21 is rotated, the movable plate 12 can move toward the direction close to the first fixed plate 11 along the arrangement direction of the movable plate 12 and the first fixed plate 11. When the driving screw 21 is rotated in the reverse direction, the movable plate 12 can move in the direction away from the first fixed plate 11 along the arrangement direction of the movable plate 12 and the first fixed plate 11. Since the first fixed plate 11 is fixedly connected to the first workpiece 201, and the movable plate 12 is fixedly connected to the second workpiece 202, the movable amount between the first fixed plate 11 and the movable plate 12 is the thread gap between the first workpiece 201 and the second workpiece 202. Therefore, according to the spacing distance between the first fixed plate 11 and the movable plate 12 measured by the measuring mechanism 3, the thread gap between the first workpiece 201 and the second workpiece 202 can be calculated.

[0048] In some embodiments of the present invention, Figure 1 As shown, the movable plate 12 may include: a movable plate body 122 and a threaded sleeve 123 , the threaded sleeve 123 is penetrated through the movable plate body 122 and fixed to the movable plate body 122 , and the threaded sleeve 123 defines a threaded hole 121 .

[0049] Wherein, the movable plate 12 may include a movable plate body 122 and a threaded sleeve 123, and the threaded sleeve 123 is inserted into the movable plate body 122 and fixed to the movable plate body 122. As some embodiments of the present application, the movable plate body 122 and the threaded sleeve 123 may be connected by bolts. As some embodiments of the present application, the movable plate body 122 and the threaded sleeve 123 may be welded. The present application is described by taking the movable plate body 122 and the threaded sleeve 123 as an example of being connected by bolts, and the bolt connection may improve the connection reliability of the movable plate body 122 and the threaded sleeve 123, reduce the risk of separation of the threaded sleeve 123 and the movable plate body 122, thereby improving the structural stability of the movable plate 12, and, when the threaded sleeve 123 is deformed or even damaged by fatigue stress, the bolt connection may facilitate the replacement of the threaded sleeve 123, thereby improving the service life of the gap detection device 100.

[0050] The threaded sleeve 123 defines a threaded hole 121, and the driving screw 21 can be inserted into the threaded hole 121. When the driving screw 21 rotates in the threaded hole 121, the threaded sleeve 123 can be driven to move along the axial direction of the driving screw 21, thereby driving the movable plate 12 to move along the axial direction of the first workpiece 201 and the second workpiece 202, and then measuring the distance between the movable plate 12 and the first fixed plate 11 according to the measuring mechanism 3, thereby achieving the effect of measuring the gap between the first workpiece 201 and the second workpiece 202.

[0051] In some embodiments of the present invention, Figure 1 As shown, the first fixing plate 11 is formed with a first assembly hole 111 corresponding to the threaded hole 121 , and the driving screw 21 is passed through the first assembly hole 111 and is rotatable relative to the first fixing plate 11 .

[0052] Among them, the first fixed plate 11 is formed with a first assembly hole 111, and the first assembly hole 111 is correspondingly arranged with the threaded hole 121, so that the driving screw 21 can be simultaneously penetrated through the threaded hole 121 and the first assembly hole 111. The driving screw 21 is penetrated through the first assembly hole 111, and the driving screw 21 is rotatable relative to the first fixed plate 11. As some embodiments of the present application, the driving screw 21 and the first assembly hole 111 can be clearance-fitted. As some embodiments of the present application, the driving screw 21 and the first assembly hole 111 can be matched through bearings. Such an arrangement can reduce the risk of the first fixed plate 11 interfering with the rotation of the driving screw 21, which is conducive to the smooth rotation of the driving screw 21 in the first assembly hole 111, thereby improving the driving reliability of the driving screw 21 on the movable plate 12.

[0053] In some embodiments of the present invention, Figure 1 As shown, the driving screw 21 is fixedly provided with a driving operating portion 211 , and the driving operating portion 211 is located on a side of the first fixed plate 11 away from the movable plate 12 .

[0054] Among them, the driving screw 21 is fixed with a driving operating part 211, for example: the driving operating part 211 can be a handwheel structure, the driving operating part 211 can also be a crank structure, but the present application is not limited thereto, the driving operating part 211 can also be other structures, as long as the driving screw 21 is fixed with the driving operating part 211. As some embodiments of the present application, the driving operating part 211 and the driving screw 21 can be welded. As some embodiments of the present application, the driving operating part 211 and the driving screw 21 can also be connected by bolts, but the present application is not limited thereto, the driving operating part 211 and the driving screw 21 can also be fixedly connected by other means, as long as the driving operating part 211 and the driving screw 21 are fixedly connected, since the driving screw 21 is fixed with the driving operating part 211, and the driving operating part 211 is located on the side of the first fixed plate 11 away from the movable plate 12, the measurement personnel can drive the driving screw 21 to rotate by rotating the driving operating part 211, thereby reducing the difficulty of the measurement personnel's operation and improving the measurement efficiency of the gap of the workpiece assembly 200.

[0055] In some embodiments of the present invention, Figure 1 As shown, the side wall of the driving operating portion 211 forms an anti-slip structure 2111 .

[0056] Among them, the driving operating part 211 can form an anti-slip structure 2111, and the anti-slip structure 2111 can be formed on the side wall of the driving operating part 211. As some embodiments of the present application, the anti-slip structure 2111 can be constructed as a plurality of protrusions on the side wall of the driving operating part 211. As some embodiments of the present application, the anti-slip structure 2111 can be constructed of a rubber material. By forming the anti-slip structure 2111 on the side wall of the driving operating part 211, the risk of slipping when the measurement personnel rotates the driving operating part 211 can be reduced, which is conducive to further reducing the operating difficulty of the measurement personnel, further improving the measurement efficiency of the thread gap of the workpiece assembly 200, and also conducive to making the movable plate 12 as close to the stop point as possible, and improving the accuracy of the thread gap measurement result between the first workpiece 201 and the second workpiece 202.

[0057] In some embodiments of the present invention, Figure 1 As shown, a workpiece assembly notch 112 is formed on the edge of the first fixing plate 11 .

[0058] Among them, the first fixed plate 11 is formed with a workpiece assembly notch 112, and the workpiece assembly notch 112 is formed at the edge of the first fixed plate 11. As some embodiments of the present application, the first fixed plate 11 is fixedly connected to the first workpiece 201. As some embodiments of the present application, the first fixed plate 11 is fixedly connected to the second workpiece 202. The present application takes the fixed connection of the first fixed plate 11 and the first workpiece 201 as an example for explanation. The first fixed plate 11 may also be formed with a bolt hole, which is connected to the workpiece assembly notch 112, and the first workpiece 201 is assembled in the workpiece assembly notch 112, and the bolt is inserted into the bolt hole and abuts against the first workpiece 201, so that the first workpiece 201 is fixed on the first fixed plate 11. By setting the workpiece assembly notch 112, an assembly space can be provided for the first workpiece 201, which is conducive to the assembly of the first workpiece 201 with the first fixed plate 11 through the workpiece assembly notch 112, reducing the risk of interference between the first workpiece 201 and the first fixed plate 11, thereby reducing the assembly difficulty of the first workpiece 201, and further improving the measurement efficiency of the gap of the workpiece assembly 200.

[0059] In some embodiments of the present invention, Figure 1 As shown, the fixed seat 1 can also have a second fixed plate 13, which is located on the side of the movable plate 12 away from the first fixed plate 11. The second fixed plate 13 is formed with a second assembly hole 131 corresponding to the threaded hole 121, and the end of the driving screw 21 is assembled in the second assembly hole 131 and can rotate relative to the second fixed plate 13.

[0060] The fixing seat 1 further comprises a second fixing plate 13, which is located on the side of the moving plate 12 away from the first fixing plate 11, that is, the first fixing plate 11 and the second fixing plate 13 are respectively located on both sides of the moving plate 12. The second fixing plate 13 is formed with a second assembly hole 131, which is arranged corresponding to the threaded hole 121, so that the driving screw 21 can be assembled in the threaded hole 121, the first assembly hole 111 and the second assembly hole 131 at the same time. The axes of the threaded hole 121, the first assembly hole 111 and the second assembly hole 131 can be in the same straight line, which is conducive to the smooth assembly of the driving screw 21 in the threaded hole 121, the first assembly hole 111 and the second assembly hole 131. Furthermore, the axis of the driving screw 21, the axis of the threaded hole 121, the axis of the first assembly hole 111, and the axis of the second assembly hole 131 are collinear, which helps to reduce the risk of interference between the driving screw 21 and the first fixed plate 11, the second fixed plate 13, and the movable plate 12, thereby facilitating the smooth rotation of the driving screw 21 in the threaded hole 121, the first assembly hole 111, and the second assembly hole 131.

[0061] The end of the driving screw 21 is assembled in the second assembly hole 131, and the driving screw 21 is rotatable relative to the second fixed plate 13. As some embodiments of the present application, the driving screw 21 and the second assembly hole 131 can be clearance-matched. As some embodiments of the present application, the driving screw 21 and the second assembly hole 131 can be matched through bearings. Such an arrangement can reduce the risk of the second fixed plate 13 interfering with the driving screw 21, which is conducive to the smooth rotation of the driving screw 21 in the second assembly hole 131, thereby improving the driving reliability of the driving screw 21 on the movable plate 12.

[0062] In some embodiments of the present invention, Figure 1 As shown, the fixing seat 1 may further include a connecting plate 14 , and the first fixing plate 11 and the second fixing plate 13 are both fixedly mounted on the connecting plate 14 .

[0063] Among them, the fixing seat 1 also has a connecting plate 14, and the connecting plate 14 can connect the first fixing plate 11 and the second fixing plate 13, and the first fixing plate 11 and the second fixing plate 13 are both fixed to the connecting plate 14. As some embodiments of the present application, the first fixing plate 11 and the second fixing plate 13 can be fixed to the connecting plate 14 by bolts. As some embodiments of the present application, the first fixing plate 11 and the second fixing plate 13 can be fixed to the connecting plate 14 by a clamping method. The present application is explained by taking the example that the first fixing plate 11 and the second fixing plate 13 are both fixed to the connecting plate 14 by bolts. The bolt connection can improve the connection reliability of the connecting plate 14, the first fixing plate 11 and the second fixing plate 13, so that the fixing seat 1 forms a stable frame structure, which is conducive to improving the overall stability of the gap detection device 100, and then improving the stability of the gap detection result between the first workpiece 201 and the second workpiece 202.

[0064] In some embodiments of the present invention, Figure 1 As shown, the measuring mechanism 3 is a micrometer.

[0065] The measuring mechanism 3 may be a micrometer, which is used to measure the spacing distance between the first fixed plate 11 and the movable plate 12. As some embodiments of the present application, the movable plate 12 may have a through hole 125, and a portion of the micrometer may be fixedly assembled in the through hole 125, and one end of the ejector pin of the micrometer abuts against the first fixed plate 11. When the movable plate 12 moves relative to the first fixed plate 11, the micrometer may measure the spacing distance between the first fixed plate 11 and the movable plate 12. The value read by the measuring mechanism 3 may be used to calculate the distance change between the first fixed plate 11 and the movable plate 12, thereby obtaining the thread clearance between the first workpiece 201 and the second workpiece 202.

[0066] Since the thread gap between the first workpiece 201 and the second workpiece 202 is small and the micrometer has a high accuracy, the measurement accuracy of the thread gap can be improved by setting the measuring mechanism 3 as a micrometer. In addition, the micrometer has a simple structure, low cost, and easy reading, which is conducive to reducing the work difficulty of the measurement personnel and the production cost of the gap detection device 100.

[0067] As some embodiments of the present application, the first fixed plate 11 is fixedly connected to the first workpiece 201, the movable plate 12 is fixedly connected to the second workpiece 202, and the axis of the first workpiece 201 is colinear with the axis of the second workpiece 202, so as to reduce the risk of relative movement between the first workpiece 201 and the second workpiece 202 and improve the accuracy of the measurement result. The driving operation part 211 is rotated to rotate the driving screw 21 to drive the movable plate 12 to move to the stop point on one side, at which time the first workpiece 201 and the second workpiece 202 are at the extreme position on one side, and the first value of the micrometer is recorded. The reverse rotation driving operation part 211 causes the driving screw 21 to rotate in the reverse direction to drive the movable plate 12 to move to the stop point on the other side, at which time the first workpiece 201 and the second workpiece 202 are at the extreme position on the other side, and the second value of the micrometer is recorded. By subtracting the first value from the second value, the thread clearance between the first workpiece 201 and the second workpiece 202 can be obtained, thereby achieving the effect of accurately measuring the spacing distance between the first workpiece 201 and the second workpiece 202. After the measurement is completed, the workpiece assembly 200 can be removed to facilitate the inspection of the next group of workpiece assemblies 200.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0069] Although the 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 claims and their equivalents.

Claims

1. A gap detection device for thread gap of a workpiece component, characterized in that: The workpiece assembly includes a first workpiece and a second workpiece, the first workpiece is sleeved on the second workpiece and is screwed to the second workpiece, and the gap detection device includes: A fixed seat, the fixed seat having a first fixed plate and a movable plate, the first fixed plate and the movable plate are arranged opposite to each other and spaced apart, the first fixed plate is suitable for being fixedly connected to one of the first workpiece and the second workpiece, the movable plate is suitable for being fixedly connected to the other of the first workpiece and the second workpiece, and the movable plate is movable relative to the first fixed plate along an arrangement direction of the movable plate and the first fixed plate; A driving mechanism and a measuring mechanism, wherein the driving mechanism is connected to the movable plate to drive the movable plate to move, and the measuring mechanism is used to measure the spacing distance between the first fixed plate and the movable plate.

2. The gap detection device according to claim 1, characterized in that: The driving mechanism includes: a driving screw, the movable plate is formed with a threaded hole, the driving screw is passed through the threaded hole, and the driving screw extends along the arrangement direction of the movable plate and the first fixed plate, and the movable plate is driven to move by the rotation of the driving screw.

3. The gap detection device according to claim 2, characterized in that: The movable plate comprises: a movable plate body and a threaded sleeve, wherein the threaded sleeve is passed through the movable plate body and fixed to the movable plate body, and the threaded sleeve defines the threaded hole.

4. The gap detection device according to claim 2, characterized in that: The first fixing plate is formed with a first assembly hole corresponding to the threaded hole, and the driving screw is passed through the first assembly hole and is rotatable relative to the first fixing plate.

5. The gap detection device according to claim 4, characterized in that: The driving screw is fixedly provided with a driving operating part, and the driving operating part is located on a side of the first fixed plate away from the movable plate.

6. The gap detection device according to claim 5, characterized in that: The side wall of the driving operation part forms an anti-slip structure.

7. The gap detection device according to claim 1, characterized in that: A workpiece assembly notch is formed at the edge of the first fixing plate.

8. The gap detection device according to claim 2, characterized in that: The fixing seat also has a second fixing plate, which is located on the side of the movable plate away from the first fixing plate. The second fixing plate is formed with a second assembly hole corresponding to the threaded hole. The end of the driving screw is assembled in the second assembly hole and is rotatable relative to the second fixing plate.

9. The gap detection device according to claim 8, characterized in that: The fixing seat further comprises a connecting plate, and the first fixing plate and the second fixing plate are both fixedly arranged on the connecting plate.

10. The gap detection device according to any one of claims 1 to 9, characterized in that: The measuring mechanism is a micrometer.

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