Intelligent numerical control chain pitch accurate measurement equipment
By using the chain link positioning and stretching mechanism and the measuring mechanism of the intelligent CNC chain pitch precision measuring equipment, the error problem when measuring the chain is not straightened is solved, and high-precision measurement of chain pitch is achieved, ensuring the production and assembly quality of the chain.
Patent Information
- Application Number
- CN202520581500.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing automated measuring equipment cannot accurately reflect the actual pitch of the chain when the chain is not straightened, resulting in large deviations in the measurement results and affecting the use and assembly quality of the chain.
An intelligent CNC chain pitch precision measurement device was designed, which includes a chain link positioning and stretching mechanism and a measuring mechanism. Through components such as a U-shaped seat, adjusting plate, chain link clamping block and control motor, it ensures that the chain link is straightened before precise measurement.
It eliminates the influence of chain bending and twisting on measurement results, significantly improves measurement accuracy, and provides more reliable chain production and quality control data.
Smart Images

Figure CN224004410U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chain measurement technology, specifically to an intelligent CNC chain pitch precision measurement device. Background Technology
[0002] Chains, as a common mechanical transmission component, are widely used in many fields such as industrial production and transportation. Chain pitch refers to the distance between the centers of two adjacent rollers of the chain. It is one of the important parameters for measuring the quality and performance of the chain. Precise chain pitch is of great significance for ensuring good matching between the chain and sprocket, reducing transmission errors, improving transmission efficiency, and extending the service life of the chain.
[0003] Currently, while some automated measuring devices have improved measurement efficiency to some extent, they lack effective means to handle situations such as bending and twisting that may occur in chains under natural conditions. Measuring when the chain is not straightened will result in a large deviation in the measured pitch value, which cannot accurately reflect the actual pitch of the chain, thus affecting the subsequent use and assembly quality of the chain. Therefore, this utility model proposes an intelligent CNC chain pitch precision measuring device to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide an intelligent CNC chain pitch precision measurement device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an intelligent CNC chain pitch precision measuring device, comprising a measuring table, wherein a chain link positioning and stretching mechanism, a chain link measuring mechanism, and a chain link body are mounted on the measuring table;
[0006] The chain link positioning and stretching mechanism includes two sets of U-shaped seats. These two sets of U-shaped seats are installed on both sides of the measuring table with adjustable spacing via positive and negative thread screws. Each U-shaped seat is provided with two sets of adjusting plates. The two sets of adjusting plates are installed in the internal space of the U-shaped seat via bidirectional screws. The bidirectional screws are provided with adjusting teeth at the middle position. The two sets of adjusting plates extend upward and are respectively provided with chain link clamping blocks.
[0007] The chain link measuring mechanism includes an L-shaped frame installed in a guide groove on one side of the measuring table. The L-shaped frame is installed in the guide groove of the measuring table in an adjustable manner via an adjusting rod. A spacing measuring device is provided on the left extension end of the L-shaped frame, and the spacing measuring device is connected to the measuring probe.
[0008] Preferably, the clamping end face of the chain link clamping block is adapted to the size of the chain link body, and the clamping end face of the chain link clamping block is provided with a rubber pad.
[0009] Preferably, the clamping end face of the chain link clamping block has a cavity structure, and a rubber gasket can be placed inside the cavity in a filling and locking manner.
[0010] Preferably, the bottom of the adjusting plate extends downward to form a guide block, and the adjusting plate can move stably within the groove opened inside the U-shaped seat by means of the guide block at its bottom.
[0011] Preferably, a set of control motors is provided on the side wall of the L-shaped frame, and the control motors are connected to the adjusting rod to realize the driving control of the adjusting rod.
[0012] Preferably, an auxiliary support plate is further installed on the measuring platform. The auxiliary support plate has the function of supporting the chain link body and can play an auxiliary role in the positioning process of the chain link body to ensure that the chain link body is accurately positioned.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] By setting up a chain link positioning and stretching mechanism, the chain link can be stretched to a straight state, eliminating the influence of the chain's bending and twisting in its natural state on the measurement results. This allows the measuring equipment to accurately measure the actual pitch of the chain, greatly improving measurement accuracy. Compared with traditional measurement methods, the measurement error can be significantly reduced, providing more reliable data support for chain production and quality control. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.
[0017] Figure 3 This is a schematic diagram of the chain link positioning and stretching mechanism of this utility model.
[0018] Figure 4 This is a schematic diagram of the installation structure of the chain link clamp and rubber gasket of this utility model.
[0019] In the diagram: 1. Measuring platform; 2. Chain link positioning and tensioning mechanism; 21. U-shaped seat; 22. Adjusting plate; 221. Guide block; 23. Chain link clamping block; 24. Bidirectional screw; 25. Adjusting tooth; 26. Rubber pad; 27. Positive and negative thread screw; 3. Chain link measuring mechanism; 31. L-shaped frame; 32. Spacing measuring device; 33. Measuring probe; 34. Adjusting rod; 35. Control motor; 4. Chain link body; 5. Auxiliary support plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1 to 4 This utility model provides a technical solution: an intelligent CNC chain pitch precision measuring device, including a measuring table 1, on which a chain link positioning and stretching mechanism 2, a chain link measuring mechanism 3, and a chain link body 4 are installed;
[0022] The chain link positioning and tensioning mechanism 2 includes two sets of U-shaped seats 21. These two sets of U-shaped seats 21 are installed on both sides of the measuring table 1 with adjustable spacing via positive and negative thread screws 27. Each U-shaped seat 21 is provided with two sets of adjusting plates 22. The two sets of adjusting plates 22 are installed in the internal space of the U-shaped seat 21 via bidirectional screws 24. The bidirectional screws 24 are provided with adjusting teeth 25 at the middle position. The two sets of adjusting plates 22 extend upward and are respectively provided with chain link clamping blocks 23.
[0023] The chain link measuring mechanism 3 includes an L-shaped frame 31 installed in a guide groove on one side of the measuring table 1. The L-shaped frame 31 is installed in the guide groove of the measuring table 1 in an adjustable manner via an adjusting rod 34. A spacing measuring device 32 is provided on the left extension end of the L-shaped frame 31, and the spacing measuring device 32 is connected to the measuring probe 33.
[0024] In use, place the chain link body 4 on the auxiliary support plate 5 on the measuring table 1, positioning it approximately at the center of the measuring area. Then, rotate the adjusting gear 25. As the bidirectional screw 24 rotates, the two sets of adjusting plates 22 move relative to each other within the grooves inside the U-shaped seats 21, thereby causing the chain link clamping blocks 23 at both ends to move closer together until the chain link clamping blocks 23 at both ends clamp the chain link body 4. Then, by rotating the adjusting handle at one end of the positive and negative thread screw 27, the U-shaped seats 21 at both ends move in opposite directions. Through the opposite movement of the U-shaped seats 21 at both ends, the chain link body 4 can be straightened, eliminating the chain link body. The potential bending or looseness of the chain link body 4 allows the measuring device to accurately measure the actual pitch of the chain. Then, by adjusting the adjusting rod 34, the L-shaped frame 31 moves within the guide groove of the measuring table 1. Based on the position and size of the chain link body 4, the L-shaped frame 31 is adjusted to a suitable measuring position, so that the measuring probe 33 is aligned with the chain link to be measured. The pitch measuring device 32 is then activated, and the measuring probe 33 begins to work, measuring the pitch of the chain link. The measuring probe 33 transmits the measured data to the pitch measuring device 32, which processes and analyzes the data to obtain the pitch value of the chain link.
[0025] Please see Figures 1 to 4 The clamping end face of the chain link clamp 23 is adapted to the size of the chain link body 4, enabling the chain link clamp 23 and the chain link body 4 to achieve maximum fit. During positioning and stretching operations of the chain link body 4, the high fit ensures that the chain link body 4 remains stable under the action of the clamp, without shaking or displacement, thereby ensuring the positional accuracy of the chain link during measurement. In addition, the clamping end face of the chain link clamp 23 is provided with a rubber pad 26. When the chain link clamp 23 clamps the chain link body 4, the rubber pad 26 is in close contact with the surface of the chain link, generating sufficient friction to effectively prevent the chain link body 4 from sliding relative to the chain link clamp 23 during stretching. The clamping end face of the chain link clamp 23 has a cavity structure, and the rubber pad 26 can be placed inside the cavity in a filling and locking manner. This design makes the installation and removal of the rubber pad 26 very convenient.
[0026] Please see Figures 1 to 4 The bottom of the adjusting plate 22 extends downward to form a guide block 221. With the help of the guide block 221 at its bottom, the adjusting plate 22 can move stably within the groove opened inside the U-shaped seat 21.
[0027] Please see Figures 1 to 4 A set of control motors 35 is provided on the side wall of the L-shaped frame 31. The control motors 35 are connected to the adjusting rod 34. When in use, the control motors 35 can provide a stable driving force, so that the adjusting rod 34 can smoothly drive the L-shaped frame 31 to move. During the movement, there will be no sudden jamming or shaking, which ensures the stability of the measuring probe 33 during the movement, thereby ensuring the reliability of the measurement process.
[0028] Please see Figures 1 to 4 An auxiliary support plate 5 is further installed on the measuring platform 1. The auxiliary support plate 5 has the function of supporting the chain link body 4 and can play an auxiliary role in the positioning process of the chain link body 4 to ensure that the chain link body 4 is accurately positioned.
[0029] In use, the chain link body 4 is placed on the auxiliary support plate 5 on the measuring table 1. Then, the adjusting tooth 25 is rotated. As the bidirectional screw 24 rotates, the two sets of adjusting plates 22 move relative to each other in the grooves inside the U-shaped seat 21 until the chain link clamping blocks 23 at both ends clamp the chain link body 4. Then, by rotating the adjusting handle at one end of the positive and negative thread screw 27, the U-shaped seats 21 at both ends move in opposite directions, thereby straightening the chain link body 4. Then, by adjusting the adjusting rod 34, the L-shaped frame 31 moves in the guide groove of the measuring table 1. According to the position and size of the chain link body 4, the L-shaped frame 31 is adjusted to a suitable measuring position so that the measuring probe 33 is aligned with the chain link part to be measured. The spacing measuring device 32 is started, and the measuring probe 33 starts to work to measure the spacing of the chain link. The measuring probe 33 transmits the measured data to the spacing measuring device 32. The spacing measuring device 32 processes and analyzes the data to obtain the pitch value of the chain link.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An intelligent numerical control chain pitch precision measuring device, comprising a measuring table, a chain pitch positioning and stretching mechanism, a chain pitch measuring mechanism and a chain pitch body installed on the measuring table, characterized in that: the chain pitch positioning and stretching mechanism comprises two groups of U-shaped seats, which are installed on the two sides of the measuring table by means of forward and reverse toothed screws in an adjustable distance manner, two groups of adjusting plates are arranged on each U-shaped seat, the two groups of adjusting plates are installed in the internal space of the U-shaped seat through bidirectional screws, adjusting teeth are arranged at the middle part of the bidirectional screws, and chain pitch clamping blocks are arranged on the two groups of adjusting plates extending upwards respectively; the chain pitch measuring mechanism comprises an L-shaped frame installed in the guide groove on one side of the measuring table, the L-shaped frame is installed in the guide groove of the measuring table in an adjustable distance manner through an adjusting rod, a distance measuring device is arranged on the left extending end of the L-shaped frame, and the distance measuring device is connected with a measuring probe.
2. The intelligent numerical control chain pitch precision measuring device according to claim 1, characterized in that: The clamping end face of the chain pitch clamping block is matched in size with the chain pitch body, and the clamping end face of the chain pitch clamping block is provided with a rubber gasket.
3. The intelligent numerical control chain pitch precision measuring device according to claim 2, characterized in that: A cavity structure is formed at the clamping end face of the chain pitch clamping block, and the rubber gasket can be arranged in the cavity in a filling and clamping manner.
4. The intelligent numerical control chain pitch precision measuring device according to claim 1, characterized in that: The bottom of the adjusting plate extends downward to form a guide block, and the adjusting plate can move stably in the groove formed in the U-shaped seat through the guide block at the bottom.
5. The intelligent numerical control chain pitch precision measuring device according to claim 1, characterized in that: A group of control motors are arranged on the side wall of the L-shaped frame, and the control motors are connected with the adjusting rod to realize the driving control of the adjusting rod.
6. The intelligent numerical control chain pitch precision measuring device according to claim 1, characterized in that: An auxiliary supporting plate is further installed on the measuring table, the auxiliary supporting plate has the function of bearing the chain pitch body, and can play an auxiliary role in the positioning process of the chain pitch body to ensure the accurate positioning of the chain pitch body.