Steel ball detection mechanism

Abstract

The utility model belongs to the technical field of non-standard detection devices, and provides a steel ball detection mechanism, which comprises a fixed part, a fixed part and a detection mechanism, the detection rod is movably arranged at one end of the fixing piece in the axis direction of the detection rod, one end of the detection rod is movably inserted into the fixing piece in a penetrating mode, and the installation position, used for installing the steel ball, on the workpiece is located on the moving path of the detection rod. Compared with the prior art, by arranging the fixing piece with the feeding state and the fixing state and the detection rod capable of moving in the axial direction and combining the design of the two moving states of the detection rod, whether pressure leakage happens to the steel ball or not and whether the binding force between the steel ball and an installation position reaches the standard or not can be automatically judged; compared with a traditional mode depending on manual visual inspection and destructive sampling inspection, the scheme has the advantages that the detection efficiency and the detection precision are remarkably improved, meanwhile, non-destructive full-number detection is realized, and the product quality control level is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of non-standard testing devices, specifically relating to a steel ball testing mechanism. Background Technology

[0002] In mechanical manufacturing and automated assembly processes, steel balls are often press-fitted into specific mounting positions on workpieces to achieve functions such as guiding, rolling, or positioning. Currently, after the steel balls are press-fitted, manual visual inspection is typically used to determine whether there are defects such as missing steel balls or misalignment. This method relies on the operator's experience and attention, resulting in low inspection efficiency and a high risk of defective products flowing into subsequent processes due to human error, thus affecting the overall product quality.

[0003] Furthermore, existing technologies primarily employ sampling or first / last piece inspection methods to assess the bonding force between the steel balls and the workpiece. Due to the lack of effective online inspection methods, it is impossible to comprehensively inspect the pressing quality of each workpiece, making it difficult to guarantee the consistency and reliability of steel ball pressing in mass production. This inspection method carries significant quality risks, particularly in applications with high requirements for product performance and safety, such as automotive parts and precision instruments.

[0004] Therefore, there is an urgent need to provide a steel ball detection mechanism with a reasonable structure, accurate detection, and rapid response to solve the problems of low detection efficiency, poor detection accuracy, and inability to achieve full inspection in the existing technology, thereby improving the quality control level of the steel ball pressing process. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a steel ball detection mechanism in view of the current situation of the prior art.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a steel ball detection mechanism is proposed for detecting whether the steel ball is properly installed on the workpiece, the detection mechanism comprising:

[0007] The fastener has a loading state and a fixing state. The loading state is used to place the workpiece on the fastener, and the fixing state is used to position and clamp the workpiece.

[0008] A detection rod is movably disposed at one end of the fixing member along its own axis. One end of the detection rod is movably inserted through the fixing member, and the mounting position on the workpiece for mounting steel balls is located on the moving path of the detection rod. The detection rod has a first moving state and a second moving state; wherein,

[0009] When in the first moving state, the end of the detection rod passes through the fixing member and stops moving due to the obstruction of the steel ball at the mounting position;

[0010] When in the second moving state, the end of the detection rod passes through the fixing member and the mounting position in sequence, or the end of the detection rod passes through the fixing member and pushes the steel ball to displace relative to the mounting position along the axial direction of the detection rod.

[0011] The aforementioned steel ball testing facility also includes:

[0012] The first driving component is vertically disposed on one side of the fixing component;

[0013] A movable component is connected to the output end of the first driving component, and the detection rod is elastically connected to the movable component, which is used to allow the detection rod to switch between the first moving state and the second moving state when the first driving component drives the movable component to move.

[0014] In the aforementioned steel ball detection mechanism, the moving component includes:

[0015] Connector block;

[0016] A mounting block is disposed on the connecting block, and the mounting block is provided with a stepped hole, the small end of which is oriented toward the fixing member.

[0017] The detection rod is provided with a main body, a step, and a detection part in sequence along the moving direction. The main body and the step are located inside the large end of the stepped hole, and one end of the main body passes through the bottom wall of the mounting block and is exposed outside the mounting block. The step and the end face of the stepped hole transitioning from the small end to the large end move against each other. One end of the detection part passes through the small end of the stepped hole and is exposed outside the fixing member.

[0018] A spring is located at the large end of the stepped hole and sleeved on the outside of the main body. One end of the spring abuts against the stepped portion, and the other end abuts against the bottom wall of the stepped hole away from the small end.

[0019] In the aforementioned steel ball detection mechanism, when the first driving member drives the connecting block to move, the maximum force exerted by the spring on the detection rod is less than the bonding force between the steel ball and the mounting position of the workpiece.

[0020] In the aforementioned steel ball detection mechanism, a first bracket is provided on the mounting block, and a sensor is provided on the first bracket. The sensing end of the sensor is positioned facing the main body, and the sensor is used to detect the length of the main body exposed on the mounting block.

[0021] In the aforementioned steel ball detection mechanism, the fixing component includes:

[0022] Second support;

[0023] A positioning seat is disposed on the second bracket and is provided with a positioning groove, the positioning groove being used to position the workpiece to be inspected;

[0024] The second driving member is disposed on the second bracket. The output end of the second driving member is provided with a pressing block. The second driving member drives the pressing block to move closer to or further away from the positioning seat, so that the fixing member switches between the feeding state and the fixing state.

[0025] In the aforementioned steel ball detection mechanism, the positioning seat is provided with a through hole penetrating its bottom wall, and one end of the detection rod is movably inserted into the through hole.

[0026] In the aforementioned steel ball detection mechanism, a plurality of clearance blocks are arranged at intervals at one end of the pressing block facing the positioning seat. The distance between two adjacent clearance blocks is greater than the diameter of the steel ball, which is used to avoid the steel ball when the clearance blocks are pressed against the workpiece.

[0027] In the aforementioned steel ball detection mechanism, the transition surface between the large and small ends of the stepped hole is a conical surface, used to guide the detection rod to move along the axial direction.

[0028] In the aforementioned steel ball detection mechanism, an elastic buffer layer is provided on the inner wall of the positioning groove.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) By setting up a fixing component with a feeding state and a fixed state, and a detection rod that can move along the axis, and combining the two movement states of the detection rod, it can automatically determine whether the steel ball is leaking pressure and whether the bonding force between the steel ball and the installation position meets the standard. Compared with the traditional method of relying on manual visual inspection and destructive sampling inspection, this solution significantly improves the detection efficiency and detection accuracy, while realizing non-destructive full inspection and improving the product quality control level.

[0031] (2) By setting a first driving component and a moving component connected thereto, and elastically connecting the detection rod to the moving component, the detection rod can automatically switch to different moving states under the drive of the first driving component, thereby realizing the automated control of the detection action, improving the response speed and operation convenience of the detection mechanism, reducing manual intervention, and being suitable for online detection in continuous production processes.

[0032] (3) By setting a first bracket with a sensor on the mounting block and detecting the change in the exposed length of the main body of the detection rod through the sensor, the movement status of the detection rod can be monitored in real time, thereby determining whether the steel ball is installed normally. Attached Figure Description

[0033] Figure 1 This is a perspective view of a steel ball detection mechanism according to this utility model.

[0034] Figure 2 yes Figure 1 A 3D view of the structure behind the hidden moving parts.

[0035] In the diagram, 1 is the fixing component; 2 is the detection rod; 3 is the first driving component; 4 is the moving component; 5 is the connecting block; 6 is the mounting block; 7 is the step; 8 is the detection part; 9 is the spring; 10 is the first bracket; 11 is the sensor; 12 is the second bracket; 13 is the positioning seat; 14 is the positioning groove; 15 is the second driving component; 16 is the pressing block; 17 is the through hole; and 18 is the clearance block. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0038] like Figures 1 to 2 As shown, this utility model discloses a steel ball detection mechanism for detecting whether steel balls are properly installed on a workpiece. The detection mechanism includes: a fixing component 1 and a detection rod 2.

[0039] Specifically, the fixing member 1 has a feeding state and a fixing state. The feeding state is used to place the workpiece on the fixing member 1, and the fixing state is used to position and clamp the workpiece. The detection rod 2 is movably disposed at one end of the fixing member 1 along its own axis. One end of the detection rod 2 is movably inserted into the fixing member 1, and the mounting position on the workpiece for mounting the steel ball is located on the moving path of the detection rod 2. The detection rod 2 has a first moving state and a second moving state. When in the first moving state, the end of the detection rod 2 passes through the fixing member 1 and stops moving due to the obstruction of the steel ball at the mounting position. When in the second moving state, the end of the detection rod 2 passes through the fixing member 1 and the mounting position in sequence, or the end of the detection rod 2 passes through the fixing member 1 and pushes the steel ball to displace relative to the mounting position along the axial direction of the detection rod 2.

[0040] During operation, the fixing component 1 is initially in the loading state, where the workpiece with pre-pressed steel balls is placed using mechanical grippers or manually. After receiving the workpiece, the fixing component 1 switches from the loading state to the fixing state, positioning and clamping the workpiece to prevent displacement during the inspection process from affecting the inspection results. Once the workpiece is reliably fixed, the inspection rod 2 starts moving axially towards the workpiece.

[0041] In this embodiment, the mounting position for pressing the steel ball on the workpiece is located on the moving path of the detection rod 2. That is, when the end of the detection rod 2 contacts the steel ball and applies a certain pushing force, if the steel ball does not separate from the workpiece, it indicates that the steel ball is normally pressed onto the workpiece; if the detection rod 2 pushes the steel ball and causes it to displace relative to the workpiece, it indicates that the steel ball is undersized or the pressing operation is not standardized, resulting in abnormal pressing; another situation is that the detection rod 2 passes directly through the mounting position without contacting the steel ball, indicating that there is a problem of steel ball leakage at the mounting position on the workpiece.

[0042] This solution, by setting up a fixing component 1 with both feeding and fixed states, and a detection rod 2 that can move axially, and combining the two movement states of the detection rod 2, can automatically determine whether the steel ball is leaking pressure and whether the bonding force between the steel ball and the mounting position meets the standard. Compared with traditional methods that rely on manual visual inspection and destructive sampling, this solution significantly improves inspection efficiency and accuracy, while achieving non-destructive 100% inspection and enhancing product quality control.

[0043] It should be noted that the number of detection rods 2 in this solution is not limited to one; the number depends on the number of steel balls that need to be detected on the workpiece.

[0044] It is worth mentioning that this solution also includes: a first driving component 3, which is vertically arranged on one side of the fixed component 1; a moving component 4, which is connected to the output end of the first driving component 3; and a detection rod 2 is elastically connected to the moving component 4, which is used to allow the detection rod 2 to switch between the first moving state and the second moving state when the first driving component 3 drives the moving component 4 to move.

[0045] The first driving component 3 is preferably a pneumatic cylinder. By setting the first driving component 3 and the moving component 4 connected to it, and elastically connecting the detection rod 2 to the moving component 4, the detection rod 2 can automatically switch to different movement states under the drive of the first driving component 3. This structure realizes automated control of the detection action, improves the response speed and operation convenience of the detection mechanism, reduces manual intervention, and is suitable for online detection in continuous production processes.

[0046] Furthermore, the movable component 4 includes: a connecting block 5; a mounting block 6, which is disposed on the connecting block 5, and the mounting block 6 is provided with a stepped hole, the small end of the stepped hole facing the direction of the fixing component 1; the detection rod 2 is provided with a main body, a step 7 and a detection part 8 in sequence along the moving direction, the main body and the step 7 are located inside the large end of the stepped hole, and one end of the main body passes through the bottom wall of the mounting block 6 and is exposed outside the mounting block 6, the step 7 and the end face of the stepped hole transitioning from the small end to the large end move against each other, one end of the detection part 8 passes through the small end of the stepped hole and is exposed outside the fixing component 1; a spring 9, which is located at the large end of the stepped hole and sleeved on the outside of the main body, one end of the spring 9 abuts against the step 7, and the other end abuts against the bottom wall of the stepped hole away from the small end.

[0047] During operation, when the steel balls on the workpiece are of the correct size and the pressing is normal, the first driving member 3 moves the connecting block 5 and the mounting block 6, thereby pushing the detection rod 2 towards the fixing member 1. During the movement of the detection rod 2, the end of the detection part 8 first contacts the steel balls on the workpiece. Then, the detection rod 2 stops moving, while the first driving member 3 continues to move the connecting block 5 and compress the spring 9. When the detection rod 2 stops moving while the connecting block 5 continues to move the mounting block 6, the length of the main body of the detection rod 2 exposed outside the mounting block 6 gradually increases.

[0048] If there is no steel ball at the mounting position on the workpiece, the detection rod 2 will continue to move as the first driving member 3 moves the connecting block 5 and the mounting block 6. During this process, since the end of the detection part 8 fails to touch the steel ball, the spring 9 will not be compressed, and the length of the main body of the detection rod 2 exposed outside the mounting block 6 will not change.

[0049] When the size or pressing of the steel ball at the mounting position on the workpiece is abnormal, the first driving component 3 moves the connecting block 5 and the mounting block 6, causing the detection rod 2 to move synchronously until the end of its detection part 8 contacts the steel ball. At this time, the detection rod 2 will also stop moving, but because the spring 9 is further compressed and the force is transmitted to the steel ball through the detection rod 2, this may cause the steel ball to be pushed out of the workpiece or displaced relative to the workpiece. This will change the length of the part of the main body of the detection rod 2 that extends out of the mounting block 6.

[0050] It should be noted that when the first driving component 3 moves the connecting block 5, the maximum force exerted by the spring 9 on the detection rod 2 is less than the bonding force between the steel ball and the workpiece mounting position, thereby preventing the spring force of the spring 9 from being too large and pushing the qualified steel ball out of the workpiece.

[0051] Furthermore, a first bracket 10 is provided on the mounting block 6, and a sensor 11 is provided on the first bracket 10. The sensing end of the sensor 11 is positioned facing the main body, and the sensor 11 is used to detect the length of the main body exposed on the mounting block 6.

[0052] This design incorporates a first bracket 10 equipped with a sensor 11 on the mounting block 6. The sensor 11 detects changes in the exposed length of the main body of the detection rod 2, enabling real-time monitoring of the rod's movement and thus determining whether the steel ball is properly installed. This structure achieves digital output of the detection signal, facilitating integration with the control system and improving the intelligence and automation level of the detection system.

[0053] It is worth mentioning that the fixing component 1 includes: a second bracket 12; a positioning seat 13, which is disposed on the second bracket 12 and is provided with a positioning groove 14, the positioning groove 14 being used to position the workpiece to be inspected; and a second driving component 15, which is disposed on the second bracket 12, the output end of the second driving component 15 being provided with a pressing block 16, the second driving component 15 driving the pressing block 16 to move closer to or further away from the positioning seat 13, so that the fixing component 1 switches between the feeding state and the fixing state.

[0054] The second driving component 15 is preferably a cylinder. By setting up a second support 12, a positioning seat 13, and a second driving component 15, and using a pressing block 16 to clamp and position the workpiece, the workpiece maintains a stable position during the inspection process, avoiding inspection errors caused by workpiece displacement. At the same time, this structure facilitates automated loading and unloading operations, improving the overall integration and work efficiency of the equipment.

[0055] Furthermore, the positioning seat 13 is provided with a through hole 17 that penetrates its bottom wall, and one end of the detection rod 2 is movably inserted into the through hole 17.

[0056] In this design, a through hole 17 is provided on the bottom wall of the positioning seat 13, through which one end of the detection rod 2 is inserted. This ensures that the detection rod 2 can accurately enter the steel ball mounting position of the workpiece for detection, without affecting the normal placement and positioning of the workpiece. This structure is compact, has high space utilization, and helps to improve the overall layout rationality of the detection mechanism.

[0057] Multiple clearance blocks 18 are arranged at intervals on one end of the pressing block 16 facing the positioning seat 13. The distance between two adjacent clearance blocks 18 is greater than the diameter of the steel ball, which is used to avoid the steel ball when the clearance block 18 is pressed on the workpiece.

[0058] In this solution, by setting multiple avoidance blocks 18 on the pressing block 16 and controlling their spacing to be greater than the diameter of the steel ball, the position of the steel ball can be effectively avoided while pressing the workpiece, preventing the steel ball from being squeezed, deformed or displaced during the pressing process, thereby avoiding interference with the test results and ensuring the reliability of the test data.

[0059] Preferably, the transition surface between the large end and the small end of the stepped hole is a tapered surface, which is used to guide the detection rod 2 to move along the axial direction.

[0060] Furthermore, the inner wall of the positioning groove 14 is provided with an elastic buffer layer, which is made of rubber or silicone material and is used to provide cushioning for the workpiece placed in the positioning groove 14.

[0061] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0063] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A steel ball detection mechanism for detecting whether steel balls are properly installed on a workpiece, characterized in that, The testing institutions include: The fastener has a loading state and a fixing state. The loading state is used to place the workpiece on the fastener, and the fixing state is used to position and clamp the workpiece. A detection rod is movably disposed at one end of the fixing member along its own axis. One end of the detection rod is movably inserted through the fixing member, and the mounting position on the workpiece for mounting steel balls is located on the moving path of the detection rod. The detection rod has a first moving state and a second moving state; wherein, When in the first moving state, the end of the detection rod passes through the fixing member and stops moving due to the obstruction of the steel ball at the mounting position; When in the second moving state, the end of the detection rod passes through the fixing member and the mounting position in sequence, or the end of the detection rod passes through the fixing member and pushes the steel ball to displace relative to the mounting position along the axial direction of the detection rod.

2. The steel ball detection mechanism as described in claim 1, characterized in that, Also includes: The first driving component is vertically disposed on one side of the fixing component; A movable component is connected to the output end of the first driving component, and the detection rod is elastically connected to the movable component, which is used to allow the detection rod to switch between the first moving state and the second moving state when the first driving component drives the movable component to move.

3. The steel ball detection mechanism as described in claim 2, characterized in that, The movable component includes: Connector block; A mounting block is disposed on the connecting block, and the mounting block is provided with a stepped hole, the small end of which is oriented toward the fixing member. The detection rod is provided with a main body, a step, and a detection part in sequence along the moving direction. The main body and the step are located inside the large end of the stepped hole, and one end of the main body passes through the bottom wall of the mounting block and is exposed outside the mounting block. The step and the end face of the stepped hole transitioning from the small end to the large end move against each other. One end of the detection part passes through the small end of the stepped hole and is exposed outside the fixing member. A spring is located at the large end of the stepped hole and sleeved on the outside of the main body. One end of the spring abuts against the stepped portion, and the other end abuts against the bottom wall of the stepped hole away from the small end.

4. The steel ball detection mechanism as described in claim 3, characterized in that, When the first driving component moves the connecting block, the maximum force exerted by the spring on the detection rod is less than the bonding force between the steel ball and the mounting position of the workpiece.

5. The steel ball detection mechanism as described in claim 3, characterized in that, A first bracket is provided on the mounting block, and a sensor is provided on the first bracket. The sensing end of the sensor is positioned facing the main body, and the sensor is used to detect the length of the main body exposed on the mounting block.

6. The steel ball detection mechanism as described in claim 1, characterized in that, The fastener includes: Second support; A positioning seat is disposed on the second bracket and is provided with a positioning groove, the positioning groove being used to position the workpiece to be inspected; The second driving member is disposed on the second bracket. The output end of the second driving member is provided with a pressing block. The second driving member drives the pressing block to move closer to or further away from the positioning seat, so that the fixing member switches between the feeding state and the fixing state.

7. The steel ball detection mechanism as described in claim 6, characterized in that, The positioning seat is provided with a through hole that penetrates its bottom wall, and one end of the detection rod is movably inserted into the through hole.

8. The steel ball detection mechanism as described in claim 6, characterized in that, The pressing block has multiple clearance blocks arranged at intervals at one end facing the positioning seat. The distance between two adjacent clearance blocks is greater than the diameter of the steel ball, which is used to avoid the steel ball when the clearance blocks are pressed against the workpiece.

9. The steel ball detection mechanism as described in claim 3, characterized in that, The transition surface between the large and small ends of the stepped hole is a tapered surface, which is used to guide the detection rod to move along the axial direction.

10. A steel ball detection mechanism as described in claim 6, characterized in that, The inner wall of the positioning groove is provided with an elastic buffer layer.

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