Automatic dispensing mechanism for precision parts

Abstract

The utility model discloses an automatic discharging mechanism of precision parts, include: the guide material casing of inside being provided with guide material passage, the inclined surface of the inclined surface sliding contact of the inclined surface on the wedge block movably installed in the through hole on the wedge block, the side surface on the wedge block is provided with a first strip through -hole with its moving direction consistent, the opposite side surface of another 2 on the clamping block far from guide material passage one end is each provided with at least a second strip through -hole with its moving direction consistent and with the through hole intercommunication, and the limit pin corresponding to the second strip through -hole is sequentially passed through the first strip through -hole on the wedge block and the second strip through -hole on the clamping block and is connected with the support. The utility model can realize the automatic discharge of material block, reduces the use of manual, improves the processing efficiency, can also improve the stability and position accuracy of the wedge block and clamping block movement in the long -term use process, improves the stability of processing.

Description

Technical Field

[0001] This utility model relates to an automatic feeding mechanism for precision parts, belonging to the field of precision parts processing technology. Background Technology

[0002] CNC (Computer Numerical Control) is a type of automated machine tool controlled by a program. During CNC machining, the workpiece needs to be loaded and unloaded multiple times. Currently, CNC loading and unloading is mainly done manually, but manual operation is slow, has a high error rate, low processing efficiency, and operators are prone to fatigue. Utility Model Content

[0003] The purpose of this invention is to provide an automatic feeding mechanism for precision parts. This automatic feeding mechanism can automatically discharge the material blocks, reduce manual labor, improve processing efficiency, and also improve the stability and positional accuracy of the wedge blocks and clamping blocks during long-term use, thereby improving processing stability.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic feeding mechanism for precision parts, comprising: a feeding housing with a feeding channel inside, one end of the feeding channel being connected to a discharge port on one end face of the feeding housing, several material blocks being arranged sequentially in the feeding channel, a guide hole communicating with the feeding channel being provided on the outer surface of the feeding housing near the discharge port, one end of a clamping block being movably embedded in the guide hole and used to press and contact the material block near the discharge port in the feeding channel, and a first elastic member in a compressed state and perpendicular to the extending direction of the feeding channel being connected between the end face of the other end of the clamping block and a bracket provided on its outer side; A through hole is formed on the side surface of the clamping block away from the material guide channel. The through hole is set as an inclined surface opposite to the inner wall of the material guide channel. The inclined surface of a wedge block movably installed in the through hole slides in contact with the inclined surface of the inner wall of the through hole. A second elastic member in a compressed state and extending along the moving direction of the wedge block is connected between the end face of the wedge block embedded in the through hole and the stop block set on its outer side. The end face of the other end of the wedge block extends to the outside of the clamping block. A first strip-shaped through hole is formed on the side surface of the wedge block in the same direction as its movement. At least one second strip-shaped through hole is formed on each of the other two opposite side surfaces of the clamping block away from the material guide channel, which is in the same direction as its movement and communicates with the through hole. At least one limiting pin corresponding to the second strip-shaped through hole passes through the first strip-shaped through hole on the wedge block and the second strip-shaped through hole on the clamping block in sequence and is connected to the bracket. When the wedge block moves towards the stop block and squeezes the second elastic member, the clamping block moves away from the material guide channel and squeezes the first elastic member.

[0005] The following are further improvements to the above technical solution: 1. In the above scheme, two limiting pins are provided, which slide in cooperation with the inner walls of the first strip-shaped through hole and the second strip-shaped through hole, respectively.

[0006] 2. In the above solution, the bracket further includes: a main body disposed on the side opposite to the guide hole and the material guide channel, and support parts respectively located on both sides of the main body, wherein the two support parts are respectively located on both sides of the guide hole and are installed and connected to the outer surface of the material guide housing.

[0007] 3. In the above scheme, the two ends of the limiting pin are respectively installed on the two support parts of the bracket.

[0008] 4. In the above scheme, both the clamping block and the main body of the bracket are provided with a first limiting groove for the end of the first elastic member to be embedded.

[0009] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model discloses an automatic feeding mechanism for precision parts. A guide hole communicating with a feeding channel is formed on the outer surface of the feeding housing near the discharge port. One end of a clamping block is movably embedded in the guide hole and used to press against a material block near the discharge port within the feeding channel. A first elastic element, in a compressed state and perpendicular to the extending direction of the feeding channel, is connected between the end face of the other end of the clamping block and a support disposed on its outer side. A through hole is formed on the side surface of the clamping block away from the feeding channel. This through hole is inclined against the inner wall of the feeding channel. An inclined surface on a wedge block movably installed within the through hole slides in contact with the inclined surface of the inner wall of the through hole. A second elastic element, in a compressed state and extending along the moving direction of the wedge block, is connected between the end face of the wedge block embedded in the through hole and a stop block disposed on its outer side. The end face of the other end of the wedge block extends to the clamping block. On the outside of the block, multiple blocks can be sequentially stored in the guide channel, and blocks near the discharge port can be released by pushing the wedge block, thereby achieving automatic discharge of the blocks, reducing manual labor and improving processing efficiency. Furthermore, a first strip-shaped through hole is opened on the side surface of the wedge block in the same direction as its movement. On the other two opposite side surfaces of the clamping block away from the guide channel, at least one second strip-shaped through hole is opened in the same direction as its movement and connected to the through hole. At least one limiting pin corresponding to the second strip-shaped through hole passes through the first strip-shaped through hole on the wedge block and the second strip-shaped through hole on the clamping block in sequence and is connected to the bracket. The pin simultaneously guides the wedge block and the clamping block, which can save space and improve the stability and positional accuracy of the movement of the wedge block and the clamping block during long-term use, thereby improving the stability of processing. Attached Figure Description

[0010] Appendix Figure 1 This is a schematic diagram of the automatic feeding mechanism for precision parts according to this utility model; Appendix Figure 2 for Figure 1 A magnified schematic diagram of a local structure; Appendix Figure 3 This is an exploded view of the automatic feeding mechanism for precision parts according to this utility model. Appendix Figure 4 This is a cross-sectional view of the automatic feeding mechanism for precision parts according to this utility model.

[0011] In the above figures: 100, material block; 1, material guide channel; 2, material guide shell; 3, material outlet; 4, guide hole; 5, clamping block; 6, bracket; 61, main body; 62, support; 7, first elastic element; 71, first limiting groove; 8, through hole; 9, wedge block; 10, stop block; 11, second elastic element; 111, second limiting groove; 121, first strip-shaped through hole; 122, second strip-shaped through hole; 123, limiting pin; 13, top spring; 14, base plate. Detailed Implementation

[0012] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0013] Example 1: An automatic feeding mechanism for precision parts includes: a feeding housing 2 with a feeding channel 1 inside, one end of the feeding channel 1 being connected to a discharge port 3 on one end face of the feeding housing 2, a plurality of material blocks 100 being arranged sequentially in the feeding channel 1, a guide hole 4 communicating with the feeding channel 1 being provided on the outer surface of the feeding housing 2 near the discharge port 3, one end of a clamping block 5 being movably embedded in the guide hole 4 and used to press and contact the material blocks 100 in the feeding channel 1 near the discharge port 3, and a first elastic member 7 in a compressed state and perpendicular to the extending direction of the feeding channel 1 being connected between the end face of the other end of the clamping block 5 and a bracket 6 provided on its outer side; A through hole 8 is formed on the side surface of the clamping block 5 away from the material guide channel 1. The through hole 8 is set as an inclined surface opposite to the inner wall of the material guide channel 1. An inclined surface on a wedge block 9 movably installed in the through hole 8 slides in contact with the inclined surface of the inner wall of the through hole 8. A second elastic member 11, which is in a compressed state and extends along the moving direction of the wedge block 9, is connected between the end face of the wedge block 9 embedded in the through hole 8 and the stop block 10 set on its outer side. The end face of the other end of the wedge block 9 extends to the outside of the clamping block 5. A part is formed on the side surface of the wedge block 9 in the same direction as its movement. The first strip-shaped through hole 121, and the clamping block 5 has at least one second strip-shaped through hole 122 on each of the other two opposite side surfaces away from the material guide channel 1, which is in the same direction of movement and communicates with the through hole 8. At least one limiting pin 123 corresponding to the second strip-shaped through hole 122 passes through the first strip-shaped through hole 121 on the wedge block 9 and the second strip-shaped through hole 122 on the clamping block 5 in sequence and is connected to the bracket 6. When the wedge block 9 moves toward the stop block 10 and squeezes the second elastic member 11, the clamping block 5 moves away from the material guide channel 1 and squeezes the first elastic member 7.

[0014] Two limiting pins 123 are provided, which slide in cooperation with the inner walls of the first strip-shaped through hole 121 and the second strip-shaped through hole 122 respectively; The aforementioned bracket 6 further includes: a main body 61 disposed on the side of the guide hole 4 opposite to the material guide channel 1, and support parts 62 respectively located on both sides of the main body 61. The two support parts 62 are respectively located on both sides of the guide hole 4 and are installed and connected to the outer surface of the material guide housing 2. The two ends of the aforementioned limiting pin 123 are respectively installed on the two support parts 62 of the bracket 6; The main body 61 of the clamping block 5 and the bracket 6 are each provided with a first limiting groove 71 for the end of the first elastic member 7 to be inserted.

[0015] Example 2: An automatic feeding mechanism for precision parts includes: a feeding housing 2 with a feeding channel 1 inside, one end of the feeding channel 1 communicating with a discharge port 3 on one end face of the feeding housing 2, a plurality of material blocks 100 arranged sequentially in the feeding channel 1, a guide hole 4 communicating with the feeding channel 1 being provided on the outer surface of the feeding housing 2 near the discharge port 3, one end of a clamping block 5 being movably embedded in the guide hole 4 and used to press and contact the material blocks 100 in the feeding channel 1 near the discharge port 3, and a first elastic member 7 in a compressed state and perpendicular to the extending direction of the feeding channel 1 being connected between the end face of the other end of the clamping block 5 and a bracket 6 provided on its outer side; A through hole 8 is formed on the side surface of the clamping block 5 away from the material guide channel 1. The through hole 8 is set as an inclined surface opposite to the inner wall of the material guide channel 1. An inclined surface on a wedge block 9 movably installed in the through hole 8 slides in contact with the inclined surface of the inner wall of the through hole 8. A second elastic member 11, which is in a compressed state and extends along the moving direction of the wedge block 9, is connected between the end face of the wedge block 9 embedded in the through hole 8 and the stop block 10 set on its outer side. The end face of the other end of the wedge block 9 extends to the outside of the clamping block 5. A part is formed on the side surface of the wedge block 9 in the same direction as its movement. The first strip-shaped through hole 121, and the clamping block 5 has at least one second strip-shaped through hole 122 on each of the other two opposite side surfaces away from the material guide channel 1, which is in the same direction of movement and communicates with the through hole 8. At least one limiting pin 123 corresponding to the second strip-shaped through hole 122 passes through the first strip-shaped through hole 121 on the wedge block 9 and the second strip-shaped through hole 122 on the clamping block 5 in sequence and is connected to the bracket 6. When the wedge block 9 moves toward the stop block 10 and squeezes the second elastic member 11, the clamping block 5 moves away from the material guide channel 1 and squeezes the first elastic member 7.

[0016] The aforementioned material guiding channel 1 extends vertically, and the aforementioned discharge port 3 is located on the end face of the lower end of the material guiding housing 2; The aforementioned material guiding channel 1 extends horizontally. A top spring 13 is provided at one end of the material guiding channel 1 opposite to the outlet 3, which is arranged along the extension direction of the material guiding channel 1. The other end of the top spring 13, which is fixed at one end, is in pressure contact with the material block 100 in the material guiding channel 1. The aforementioned material guide housing 2 is mounted on a base plate 14 at one end opposite to the discharge port 3, and one end of the top spring 13 in the aforementioned material guide channel 1, which is penetrating at both ends, is fixedly connected to the base plate 14. Both the wedge block 9 and the stop block 10 installed on the outer surface of the guide housing 2 are provided with a second limiting groove 111 for the end of the second elastic member 11 to be inserted. The moving direction of the wedge block 9 is the same as the extending direction of the guide channel 1. The end face of the wedge block 9 opposite to the end of the stop block 10 is located outside the end face of the guide housing 2 where the discharge port 3 is opened. The inclined surfaces of the inner wall of the through hole 8 on the clamping block 5 and the inclined surfaces on the wedge block 9 are both gradually inclined towards the material guide channel 1 in the direction close to the stop block 10.

[0017] Working principle: When in use, it is generally used in conjunction with a jig for processing material blocks; Under normal conditions, when the wedge block is not pushed, the wedge block is located in the initial position away from the stop block under the action of the second elastic element. At this time, the limiting pin is located at one end of the first strip-shaped through hole, and the clamping block is located in the initial position close to the guide channel under the action of the first elastic element and presses the material block closest to the discharge port in the guide channel. At this time, the limiting pin is located at one end of the second strip-shaped through hole. When feeding is required, the automatic feeding mechanism for precision parts is moved as a whole toward the machining clamping fixture of the material block and the discharge port is aligned with the clamping position on the clamping fixture. During the process of the automatic feeding mechanism of precision parts moving towards the clamping fixture, the wedge block first contacts the clamping fixture and is squeezed to move closer to the stop block, squeezing the second elastic element until the limiting pin moves to the other end of the first strip-shaped through hole. At the same time, the clamping block is pushed by the inclined surface of the wedge block and can only move away from the guide channel under the limitation of the guide housing, squeezing the first elastic element until the limiting pin moves to the other end of the second strip-shaped through hole, thereby releasing the pressure on the material block closest to the discharge port. At this time, the material block closest to the discharge port moves outward from the discharge port to the processing clamping fixture under its own weight (when the guide channel 1 extends in the vertical direction) or the action of the top spring (when the guide channel 1 extends in the horizontal direction), realizing the automatic discharge of the material block. After one loading is completed, the automatic unloading mechanism of the precision parts moves away from the clamping fixture. The wedge block, which is no longer squeezed by the clamping fixture, returns to its initial position under the action of the second elastic element. The clamping block, which is no longer squeezed by the wedge block, returns to its initial position under the action of the first elastic element.

[0018] When using the above-mentioned automatic feeding mechanism for precision parts, multiple material blocks can be sequentially stored in the guide channel, and the material blocks near the discharge port can be released by pushing the wedge block, thereby realizing the automatic discharge of material blocks, reducing manual labor and improving processing efficiency. Furthermore, a first strip-shaped through hole 121 is formed on the side surface of the wedge block 9, which is aligned with its moving direction. At least one second strip-shaped through hole 122 is formed on each of the two opposite side surfaces of the clamping block 5, which is aligned with its moving direction and communicates with the through hole 8. At least one limiting pin 123, corresponding to the second strip-shaped through hole 122, passes through the first strip-shaped through hole 121 on the wedge block 9 and the second strip-shaped through hole 122 on the clamping block 5, and connects to the bracket 6. The pins simultaneously guide both the wedge block and the clamping block, saving space and improving the stability and positional accuracy of the movement of the wedge block and the clamping block during long-term use, thus enhancing processing stability. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An automatic feeding mechanism for precision parts, comprising: A material guide housing (2) with a material guide channel (1) inside is provided. One end of the material guide channel (1) is connected to the outlet (3) on one end face of the material guide housing (2). Several material blocks (100) are arranged in the material guide channel (1) in sequence. The material guide housing (2) has a guide hole (4) connected to the material guide channel (1) on the outer surface near the outlet (3). One end of a clamping block (5) is movably embedded in the guide hole (4) and used to press and contact the material blocks (100) near the outlet (3) in the material guide channel (1). The end face of the other end of the clamping block (5) is connected to a first elastic member (7) in a compressed state and perpendicular to the extension direction of the material guide channel (1) between the bracket (6) provided on its outer side. A through hole (8) is provided on the side surface of the clamping block (5) away from the guide channel (1). The through hole (8) is set as an inclined surface opposite to the inner wall of the guide channel (1). The inclined surface of a wedge block (9) movably installed in the through hole (8) slides in contact with the inclined surface of the inner wall of the through hole (8). A second elastic member (11) in a compressed state and extending along the moving direction of the wedge block (9) is connected between the end face of the wedge block (9) embedded in the through hole (8) and the stop block (10) provided on its outer side. The end face of the other end of the wedge block (9) extends to the outside of the clamping block (5). A first elastic member consistent with its moving direction is provided on the side surface of the wedge block (9). The clamping block (5) has at least one second strip-shaped through hole (122) on each of the two opposite side surfaces away from the material guide channel (1), which is consistent with its moving direction and communicates with the through hole (8). At least one limiting pin (123) corresponding to the second strip-shaped through hole (122) passes through the first strip-shaped through hole (121) on the wedge block (9) and the second strip-shaped through hole (122) on the clamping block (5) in sequence and is connected to the bracket (6). When the wedge block (9) moves toward the stop block (10) and squeezes the second elastic member (11), the clamping block (5) moves away from the material guide channel (1) and squeezes the first elastic member (7).

2. The automatic feeding mechanism for precision parts according to claim 1, characterized in that: Two limiting pins (123) are provided, which slide in cooperation with the inner walls of the first strip-shaped through hole (121) and the second strip-shaped through hole (122) respectively.

3. The automatic feeding mechanism for precision parts according to claim 1 or 2, characterized in that: The bracket (6) further includes: a main body (61) disposed on the side of the guide hole (4) opposite to the material guide channel (1) and support parts (62) respectively located on both sides of the main body (61), the two support parts (62) being respectively located on both sides of the guide hole (4) and installed and connected to the outer surface of the material guide housing (2).

4. The automatic feeding mechanism for precision parts according to claim 3, characterized in that: The two ends of the limiting pin (123) are respectively installed on the two support parts (62) of the bracket (6).

5. The automatic feeding mechanism for precision parts according to claim 2, characterized in that: The main body (61) of the clamping block (5) and the bracket (6) is provided with a first limiting groove (71) for the end of the first elastic member (7) to be inserted.

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