Precise conveying device

Abstract

The utility model discloses a precise conveying device which comprises a rack, a first guide rail is fixedly arranged on the rack, a second guide rail is arranged on one side of the first guide rail, the second guide rail and the first guide rail are matched to form a closed ring, and the second guide rail can horizontally move by a micro distance relative to the first guide rail; a chain which is always clung to the first guide rail and the second guide rail is wound on the first guide rail and the second guide rail; and the chain is driven by a driving assembly arranged on the first guide rail. The chain tensioning device has the advantages that the design is ingenious, the second guide rail moves slightly relative to the first guide rail, the tensioning degree of the chain can be controlled, therefore, the position accuracy of the chain in the conveying process is guaranteed, the subsequent machining accuracy of the chain is guaranteed, and the chain tensioning device has wide applicability. In addition, a reset spring is arranged for micro-distance adjustment, operation is easy and convenient, stability and reliability are achieved, cost is low, and enterprise development is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying, and in particular to a precision conveying device. Background Art

[0002] In today's society, general products are assembled from multiple parts. Among these parts, some parts have very high requirements on size and are usually called precision parts. However, after the precision parts are produced, they need to be accurately transported to the designated location for subsequent processing.

[0003] For example, the authorization announcement number CN218808350U discloses a conveyor chain structure and a chain conveyor device, wherein the conveyor chain structure includes a conveyor chain, and a conveyor placement cavity is provided on the conveyor end face of the conveyor chain, and each conveyor placement cavity includes a conveyor support plate and a conveyor baffle; the conveyor baffle is vertically arranged with the conveyor support plate, and a buffer block is provided on the working end face of the conveyor baffle. However, during long-term conveying, the conveyor chain will become loose, resulting in deviations in the accuracy of the conveying position, affecting the yield rate of subsequent processing, and having great limitations. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a precise conveying device.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A precision conveying device includes a frame, a first guide rail is fixedly provided on the frame, a second guide rail is provided on one side of the first guide rail, the second guide rail and the first guide rail cooperate to form a closed ring, and the second guide rail can move horizontally by a micro distance relative to the first guide rail; chains are also wound around the first guide rail and the second guide rail and are always in close contact with them, and the chains are driven by a driving component arranged on the first guide rail.

[0007] Preferably, a bolt is fixedly provided on the end side of the first guide rail close to the second guide rail, and a first guide groove matched with the bolt is opened on the second guide rail, and the bolt at least partially extends into the first guide groove; a return spring is sleeved on the bolt, one end of the return spring abuts against the first guide rail, and the other end abuts against the second guide rail.

[0008] Preferably, a pressure sensor is also provided on the bolt, and the pressure sensor is located between the return spring and the second guide rail.

[0009] Preferably, the driving assembly comprises at least a driving wheel and a driven wheel pivotally arranged on a frame, a transmission belt is arranged around the driving wheel and the driven wheel, a driving wheel is fixedly arranged on the driven wheel, a group of saw teeth are equidistantly arranged on the outer circumferential surface of the driving wheel, and the saw teeth can be clamped on the chain.

[0010] Preferably, a driving motor is fixedly disposed on the frame, and the driving wheel is fixedly disposed on the motor shaft of the driving motor.

[0011] Preferably, the chain is formed by a group of chain link blocks spliced ​​together one by one, a protrusion is fixedly provided at one end of the upper surface of the chain link block, and a groove matching the protrusion is provided at the other end, pin holes are provided on both sides of the groove and on the protrusion, and a pin can pass through the pin hole to connect adjacent chain link blocks.

[0012] Preferably, support plates integrally formed therewith are provided on both sides of the chain link block, rollers are pivotally provided on the support plates, and second guide grooves matched with the rollers are provided on the second guide rail and the first guide rail.

[0013] Preferably, a group of connecting holes are provided on the chain link block.

[0014] The beneficial effects of the utility model are mainly reflected in:

[0015] 1. The design is exquisite. The second guide rail can control the tension of the chain by moving the second guide rail relative to the first guide rail, thereby ensuring the accuracy of the chain position during the conveying process and the accuracy of its subsequent processing. It has a wide range of applicability. In addition, the reset spring is set for micro-distance adjustment, which is simple and convenient to operate, stable and reliable, and low in cost, which is convenient for the development of the enterprise.

[0016] 2. The chain is composed of chain links which are spliced ​​one by one, and are stable and reliable. The number of chain links can be adjusted according to actual needs, and the chain can be applied to conveying devices of various specifications, with strong applicability. In addition, the chain can be easily disassembled, replaced and repaired, which greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 : A three-dimensional diagram of a preferred embodiment of the utility model;

[0019] Figure 2 : A front view of a preferred embodiment of the utility model;

[0020] Figure 3 : Figure 2 Sectional view of AA in the middle;

[0021] Figure 4 : Figure 2 Cross-sectional view of the middle BB;

[0022] Figure 5 : A three-dimensional diagram of a chain link block in a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figures 1 to 5 The utility model shown in the figure discloses a precision conveying device, including a frame 1, on which a first guide rail 2 is fixedly provided, and a second guide rail 3 is provided on one side of the first guide rail 2, and the second guide rail 3 and the first guide rail 2 cooperate to form a closed ring, and the second guide rail 3 can move horizontally by a micro distance relative to the first guide rail 2; a chain 4 that is always in close contact with the first guide rail 2 and the second guide rail 3 is also wound around the first guide rail 2 and the second guide rail 3. The above design is sophisticated, and the tension of the chain 4 can be controlled by the second guide rail moving a micro distance relative to the first guide rail, thereby ensuring the accuracy of the chain position during the conveying process and the accuracy of its subsequent processing, and has a wide applicability.

[0026] In this preferred embodiment, a bolt 21 is fixedly provided at the end side close to the first guide rail 2 and the second guide rail 3, and a first guide groove 20 adapted to the bolt 21 is provided on the second guide rail 3, and the bolt 21 at least partially extends and is placed in the first guide groove 20; a reset spring 22 is sleeved on the bolt 21, and one end of the reset spring 22 abuts against the first guide rail 3, and the other end abuts against the second guide rail 3. The micro-distance adjustment is performed by setting the reset spring 22, which is simple and convenient to operate, stable and reliable, and low in cost, which is convenient for the development of the enterprise. In addition, a pressure sensor 23 is also provided on the bolt 21, and the pressure sensor 23 is located between the reset spring 22 and the second guide rail 3. The setting of the pressure sensor 23 can monitor the tension thereon in real time to ensure its accuracy.

[0027] The chain 4 is driven by a driving assembly 5 arranged on the first guide rail 2, and the driving assembly 5 at least includes a driving wheel 51 and a driven wheel 52 pivotally arranged on the frame 1, and a transmission belt 53 is wound between the driving wheel 51 and the driven wheel 52, and a driving wheel 56 is fixedly arranged on the driven wheel 52, and a group of saw teeth 54 are equidistantly arranged on the outer circumference of the driving wheel 56, and the saw teeth 54 can be clamped on the chain 4. A driving motor 55 is fixedly arranged on the frame 1, and the motor shaft of the driving motor 55 is fixedly arranged with the driving wheel 51. The above is a preferred embodiment of the utility model. Of course, other structures can also be used for driving, which all belong to the protection scope of the utility model and will not be described in detail here.

[0028] The chain 4 is formed by splicing a group of chain link blocks 41 one by one. A protrusion 42 is fixed on one end of the upper surface of the chain link block 41, and a groove matching the protrusion 42 is provided on the other end. Pin holes 43 are provided on both sides of the groove and the protrusion 42. A pin 44 can penetrate the pin holes 43 to connect the adjacent chain link blocks 41. Support plates 45 integrally formed with the chain link block 41 are provided on both sides of the chain link block 41. Rollers 46 are pivotally provided on the support plates 45. Second guide grooves 47 matching the rollers 46 are provided on the second guide rail 3 and the first guide rail 2. Chain link blocks 41 are spliced ​​one by one to form a chain, which is simple and convenient to operate, stable and reliable, and the number of chain link blocks 41 can be adjusted according to actual needs. It can be applied to conveying devices of multiple specifications, and has strong applicability. In addition, it is easy to disassemble, replace and repair, which greatly improves work efficiency.

[0029] In this preferred embodiment, a group of connecting holes 48 are formed on the link block 41 to facilitate connection with other components.

[0030] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0031] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A precision conveying device, comprising a frame (1), characterized in that: The frame (1) is fixedly provided with a first guide rail (2), a second guide rail (3) is provided on one side of the first guide rail (2), the second guide rail (3) and the first guide rail (2) cooperate to form a closed ring, and the second guide rail (3) can move horizontally at a micro distance relative to the first guide rail (2); the first guide rail (2) and the second guide rail (3) are also wound with chains (4) that are always in close contact with them, and the chains (4) are driven by a driving component (5) arranged on the first guide rail (2).

2. The precision conveying device according to claim 1, characterized in that: A bolt (21) is fixedly provided on the end side of the first guide rail (2) close to the second guide rail (3); a first guide groove (20) adapted to the bolt (21) is provided on the second guide rail (3); the bolt (21) at least partially extends into the first guide groove (20); a return spring (22) is sleeved on the bolt (21); one end of the return spring (22) abuts against the first guide rail (2), and the other end abuts against the second guide rail (3).

3. The precision conveying device according to claim 2, characterized in that: A pressure sensor (23) is also provided on the bolt (21), and the pressure sensor (23) is located between the return spring (22) and the second guide rail (3).

4. The precision conveying device according to claim 1, characterized in that: The driving assembly (5) comprises at least a driving wheel (51) and a driven wheel (52) pivotally arranged on the frame (1); a transmission belt (53) is arranged between the driving wheel (51) and the driven wheel (52); a driving wheel (56) is fixedly arranged on the driven wheel (52); a group of saw teeth (54) are equidistantly arranged on the outer circumferential surface of the driving wheel (56); and the saw teeth (54) can be clamped on the chain (4).

5. The precision conveying device according to claim 4, characterized in that: A driving motor (55) is fixedly disposed on the frame (1), and the driving wheel (51) is fixedly disposed on the motor shaft of the driving motor (55).

6. The precision conveying device according to claim 1, characterized in that: The chain (4) is formed by splicing a group of chain link blocks (41) one by one. A protrusion (42) is fixedly provided at one end of the upper surface of the chain link block (41), and a groove matching the protrusion (42) is provided at the other end. Pin holes (43) are provided on both sides of the groove and on the protrusion (42). A latch pin (44) can penetrate the pin hole (43) to connect adjacent chain link blocks (41).

7. The precision conveying device according to claim 6, characterized in that: Support plates (45) formed integrally therewith are provided on both sides of the chain link block (41); a roller (46) is pivotally provided on the support plate (45); and second guide grooves (47) adapted to the roller (46) are provided on the second guide rail (3) and the first guide rail (2).

8. The precision conveying device according to claim 7, characterized in that: The chain link block (41) is provided with a group of connection holes (48).

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