Simple multi-station pitch changing mechanism
By designing a simple multi-station pitch-changing mechanism, using a combination of slide rails, pitch-changing bases, and limit rods, the complexity and high cost of pitch adjustment for multi-station products in existing technologies are solved, enabling flexible pitch adjustment and low-cost installation.
Patent Information
- Application Number
- CN202423239863.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The existing servo motor lead screw pitch-changing mechanisms on the market are complex in structure, difficult to process, large in size and high in installation cost when adjusting in multiple positions, making it difficult to meet the needs of pitch adjustment for multi-position products.
A simple multi-station pitch-changing mechanism is designed, which adopts a combination of base slide rail, pitch-changing base, limit rod and driving component. The pitch of multi-station products can be adjusted by sliding the limit rod and driving the driving component. The structure is simple, widely applicable and highly compatible.
It enables flexible adjustment of the spacing between multi-station products, reduces installation costs, has wide applicability and strong compatibility, and has a simple structure and small footprint.
Smart Images

Figure CN223619515U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automation equipment technology, and more specifically, to a simple multi-station variable pitch mechanism. Background Technology
[0002] In automated production lines consisting of multiple processes, the spacing between products in consecutive processes often differs. To ensure proper alignment of products between these processes, a pitch-changing mechanism is typically used to adjust the distance between workstations. If there are only two workstations, implementing pitch changing is relatively simple. However, for more than two, such as five or even ten products requiring pitch changing, the mechanism design becomes more complex. Currently, commonly used servo motor lead screw pitch-changing mechanisms, such as the one disclosed in patent CN208345274U, have complex structures, are difficult to manufacture, are large in size, and have high installation costs.
[0003] In view of this, the applicant hereby submits this application after studying the existing technology. Utility Model Content
[0004] This utility model provides a simple multi-station pitch-changing mechanism, which aims to improve at least one of the above-mentioned technical problems.
[0005] To solve the above-mentioned technical problems, this utility model provides a simple multi-station pitch-changing mechanism, comprising:
[0006] The base has a horizontally extending slide rail on its top surface, with a fixed seat at one end and a connecting seat at the other end.
[0007] Several variable pitch bases are sequentially connected to the slide rail. Each fixed base and each variable pitch base is provided with a limiting seat at its top and a product station connected to its side.
[0008] Several limiting rods are staggered between every two adjacent limiting seats. One end of each rod is fixedly connected to the limiting seat on the same side, and the other end is slidably connected to the limiting seat on the same side, so that two adjacent limiting seats can be linked together through the limiting rods.
[0009] A driving component is connected to the connecting seat, and its driving end is connected to a variable pitch base near the connecting seat to drive the variable pitch base to move along the slide rail away from the fixed seat and drive the other variable pitch bases to move in the same direction through the limiting rod, or drive the variable pitch base to move along the slide rail towards the fixed seat and push the other variable pitch bases to move in the same direction.
[0010] As a further optimization, the limiting rod is provided with a fixed part, a sliding part and a limiting part, which are connected in sequence to form an I-shaped limiting rod.
[0011] As a further optimization, the limiting seat is provided with a fixing groove that matches the fixing part, and the fixing part is fixedly connected to the fixing groove by bolts.
[0012] As a further optimization, the limiting seat is provided with a sliding groove adapted to the sliding part, and a limiting groove adapted to the limiting part is provided on the side of the sliding groove away from the fixed part.
[0013] As a further optimization, the driving component is a cylinder.
[0014] As a further optimization, the driving component is an electric push rod.
[0015] As a further optimization, the connecting seat is provided with a limiting post on the side facing the variable pitch base.
[0016] As a further optimization, the variable pitch base closest to the connecting seat has an abutment portion on the side facing the connecting seat that is adapted to the limiting post.
[0017] By adopting the above technical solution, the present invention can achieve the following technical effects:
[0018] This application discloses a simple multi-station pitch-changing mechanism. A horizontally extending slide rail is provided on the top surface of the base, with fixed seats and connecting seats connected to both ends respectively. Several pitch-changing bases are arranged together on the slide rail. A limiting seat is provided on the top of the fixed seat and each pitch-changing base, and a product station is connected to the side. Several limiting rods are arranged alternately between every two adjacent limiting seats. One end of each limiting rod is fixedly connected to the limiting seat on the same side, and the other end is slidably connected to the limiting seat on the same side. The driving end of the driving component is connected to the pitch-changing base near the connecting seat, thereby driving the pitch-changing base. The mechanism moves along the slide rail away from the fixed seat, and through the linkage of the limit rod, it sequentially drives the other pitch-changing bases to move in the same direction, or drives the pitch-changing base to move along the slide rail towards the fixed seat, and pushes the other pitch-changing bases to move in the same direction, thereby realizing pitch change between product stations. The multi-station pitch-changing mechanism of this application has a simple structure, and the number of pitch-changing bases and the length of the limit rods can be adjusted according to the number of product stations and the spacing requirements, so it is suitable for a variety of processing occasions, with wide applicability, strong compatibility, and convenient installation, which can greatly reduce installation costs. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the simplified multi-station pitch-changing mechanism of this utility model when the product station spacing is reduced;
[0021] Figure 2 This is a schematic diagram of the simplified multi-station pitch-changing mechanism of this utility model when the product station spacing increases;
[0022] The markings in the diagram are: 1-base; 11-slide rail; 2-variable pitch base; 21-abutment part; 3-fixed seat; 4-connecting seat; 41-limiting post; 5-limiting seat; 51-fixed groove; 52-sliding groove; 53-limiting groove; 6-limiting rod; 61-fixed part; 62-sliding part; 63-limiting part; 7-driving component; 8-product station. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Example
[0025] Depend on Figure 1 , Figure 2As shown, this utility model embodiment provides a simple multi-station pitch-changing mechanism, including a base 1, several pitch-changing bases 2, several limiting rods 6, and a driving component 7. The top surface of the base 1 is provided with a slide rail 11 extending laterally, with a fixed seat 3 at one end and a connecting seat 4 at the other end; variable pitch bases 2 are sequentially connected to the slide rail 11, and each fixed seat 3 and each variable pitch base 2 has a limiting seat 5 at its top and a product station 8 connected to its side; limiting rods 6 are staggered between every two adjacent limiting seats 5, with one end fixedly connected to the limiting seat 5 on the same side and the other end slidably connected to the limiting seat 5 on the same side, so that two adjacent limiting seats 5 can be linked together by the limiting rods 6; the driving component 7 is connected to the connecting seat 4, and its driving end is connected to the variable pitch base 2 closest to the connecting seat 4, so as to drive the variable pitch base 2 to move along the slide rail 11 away from the fixed seat 3 and sequentially drive the other variable pitch bases 2 to move in the same direction through the limiting rods 6, or drive the variable pitch base 2 to move along the slide rail 11 towards the fixed seat 3 and sequentially push the other variable pitch bases 2 to move in the same direction.
[0026] Specifically, the limiting rod 6 is provided with a fixing part 61, a sliding part 62 and a limiting part 63, and the fixing part 61, the sliding part 62 and the limiting part 63 are connected in sequence to form an I-shaped limiting rod. The limiting seat 5 has a fixing groove 51 on one side of its top that matches the fixing part 61, and a sliding groove 52 on the other side of its top that matches the sliding part 62. A limiting groove 53 that matches the limiting part 63 is opened on the side of the sliding groove 52 away from the fixing part. The fixing part 61 of the limiting rod 6 is bolted to the fixing groove 51 of the limiting seat 5 on the same side. The sliding part 62 is slidably connected to the sliding groove 52 of the limiting seat 5 on the same side, and its end passes through the sliding groove 52 and connects to the limiting part 63. When the driving member 7 drives the variable pitch base 2 to move away from the fixing seat 3, the limiting seat 5 can slide along the sliding part 62 until the limiting part 63 is locked in the limiting groove 53. Then, the limiting rod 6 pulls the next limiting seat 5 to move in the same direction, and so on, thereby pulling the remaining variable pitch bases 2 to move away from the fixing seat 3 in sequence, so as to increase the distance between product stations. When the drive component 7 drives the variable pitch base 2 to move closer to the fixed base 3, the limiting part 63 disengages from the limiting groove 53, and the limiting base 5 slides along the sliding part 62 until the variable pitch base 2 abuts against the previous variable pitch base 2, and then pushes the previous variable pitch base to move in the same direction. In this way, the remaining variable pitch bases are pushed to move closer to the fixed base 3 in sequence to reduce the distance between product stations.
[0027] The driving component 7 can be a cylinder or an electric push rod. The driving component 7 is connected to the side of the connecting seat away from the pitch base 2, and its driving end passes through the connecting seat 4 and connects to the pitch base 2 closest to the connecting seat 4. A limit post 41 is provided on the side of the connecting seat 4 facing the pitch base 2 to prevent the pitch base 2 from detaching from the slide rail 11 during sliding. An abutment part 21 adapted to the limit post 41 can be provided on the side of the pitch base 2 closest to the connecting seat 4 facing the connecting seat 4 to abut against the limit post 41, thereby preventing the pitch base 2 from directly colliding with the limit post 41 and causing wear.
[0028] The simplified multi-station pitch-changing mechanism of this application allows for adjustment of the number of pitch-changing bases 2 according to the number of product workstations. In the accompanying drawings, taking a setup of 6 product workstations as an example, there are 5 pitch-changing bases 2, 6 corresponding limit seats, and 5 limit rods. To increase or decrease the number of product workstations, simply increase or decrease the number of pitch-changing bases, limit seats, and limit rods accordingly. The pitch requirements between product workstations can be achieved by replacing limit rods of different lengths. This allows the simplified multi-station pitch-changing mechanism of this application to be applicable to various processing scenarios, offering wide applicability and strong compatibility. Furthermore, it occupies little space, significantly reducing installation costs.
[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A simple multi-station pitch-changing mechanism, characterized in that, include: The base has a horizontally extending slide rail on its top surface, with a fixed seat at one end and a connecting seat at the other end. Several variable pitch bases are sequentially connected to the slide rail. Each fixed base and each variable pitch base is provided with a limiting seat at its top and a product station connected to its side. Several limiting rods are staggered between every two adjacent limiting seats. One end of each rod is fixedly connected to the limiting seat on the same side, and the other end is slidably connected to the limiting seat on the same side, so that two adjacent limiting seats can be linked together through the limiting rods. A driving component is connected to the connecting seat, and its driving end is connected to a variable pitch base near the connecting seat to drive the variable pitch base to move along the slide rail away from the fixed seat and drive the other variable pitch bases to move in the same direction through the limiting rod, or drive the variable pitch base to move along the slide rail towards the fixed seat and push the other variable pitch bases to move in the same direction.
2. The simplified multi-station pitch-changing mechanism according to claim 1, characterized in that... The limiting rod has a fixed part, a sliding part and a limiting part, which are connected in sequence to form an I-shaped limiting rod.
3. A simplified multi-station pitch-changing mechanism according to claim 2, characterized in that... The limiting seat is provided with a fixing groove that matches the fixing part, and the fixing part is fixedly connected to the fixing groove by bolts.
4. A simplified multi-station pitch-changing mechanism according to claim 2, characterized in that... The limiting seat is provided with a sliding groove that matches the sliding part, and a limiting groove that matches the limiting part is provided on the side of the sliding groove away from the fixed part.
5. A simplified multi-station pitch-changing mechanism according to claim 1, characterized in that... The driving component is a cylinder.
6. A simplified multi-station pitch-changing mechanism according to claim 1, characterized in that... The driving component is an electric push rod.
7. A simplified multi-station pitch-changing mechanism according to claim 1, characterized in that... The connecting seat has a limiting post on the side facing the variable pitch base.
8. A simplified multi-station pitch-changing mechanism according to claim 7, characterized in that... The variable pitch base closest to the connecting seat has an abutment portion on the side facing the connecting seat that is adapted to the limiting post.
Citation Information
Patent Citations
Pitch -changing mechanism
CN208345274U