Tolerance checking structure and cutting part blanking process

Abstract

The invention discloses a tolerance checking structure and a cutting part blanking process, and relates to the field of cutting part checking, and the technical scheme is characterized in that whether a cutting part can pass through a gap between the side wall of a sliding groove and a first limiting part is judged through a pressure sensor, and when the cutting part cannot pass through, an air cylinder drives a transverse push plate to push the cutting part out of a sliding rail; whether the cutting piece can pass through the gap between the side wall of the sliding groove and the second limiting piece or not is judged through the pressure sensor, when the cutting piece cannot pass through, the air cylinder drives the transverse push plate to push the cutting piece out of the qualified outlet, and when the cutting piece can pass through, the cutting piece is pushed out of the sliding groove through the longitudinal push plate. The cutting parts keep moving on the same horizontal plane, the moving path of the cutting parts is simple, debugging and maintenance are convenient, and when the cutting parts of different sizes need to be adjusted, only the first limiting part and the second limiting part need to be replaced or the position of the return stroke push plate needs to be adjusted.

Description

Technical Field

[0001] The invention relates to the field of cutting piece checking, and more specifically, to a tolerance checking structure and a cutting piece blanking process. Background Art

[0002] Cutting is a common processing technology. The raw materials are cut to meet certain size standards, which often serves as the basis for subsequent further processing. The accuracy of cutting directly or indirectly affects the accuracy of subsequent processing. Therefore, in the process of cutting and unloading, the size of the cutting parts needs to be calibrated and verified. Because the quantity is large during production, it is time-consuming and laborious to measure one by one, and it is also prone to measurement errors. Therefore, the comparison method is usually used for calibration. However, in the existing calibration process, the cutting parts need to be placed in the calibration structure, and then moved to the two ends of the calibration structure respectively, and whether the upper deviation and the lower deviation meet the requirements is determined based on whether they pass. Then the cutting parts are taken out and classified according to whether they are qualified or not. Taking out and putting in as well as moving in the horizontal direction make the movement process of the cutting parts more complicated, and have higher requirements on the corresponding slide rail system. It is more troublesome to adjust the equipment for cutting parts of different sizes.

[0003] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a tolerance checking structure and a cutting part blanking process.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a tolerance checking structure, comprising a checking module and a pushing module; The inspection module comprises a base, a top surface of the base is provided with a slide groove penetrating through two ends of the base, two ends of a side wall of the slide groove are respectively fixedly connected with a first limiter and a second limiter, the width of the first limiter is smaller than the width of the second limiter, and a qualified outlet is penetratingly provided on the side wall of the slide groove provided with the first limiter; The pushing module includes a slide rail, the length of which is greater than the length of the base, the slide rail is located above the base, a longitudinal push plate and a cylinder are slidably connected to the slide rail, the cylinder and the qualified outlet are respectively located on both sides of the slide groove, a transverse push plate is fixedly connected to the output end of the cylinder, the movement direction of the transverse push plate is perpendicular to the movement direction of the longitudinal push plate, the bottom end of the transverse push plate and the bottom end of the longitudinal push plate are both located in the slide groove, a pressure sensor is provided on the longitudinal push plate, and the pressure sensor is electrically connected to the cylinder.

[0006] The present invention is further configured such that: the first limiting member and the second limiting member are both detachably connected to the base.

[0007] The present invention is further configured such that: the width of the first position-limiting member gradually decreases along a direction approaching the second position-limiting member, and the width of the second position-limiting member gradually decreases along a direction approaching the first position-limiting member.

[0008] The present invention is further configured such that a chamfer is provided between the bottom surface of the qualified outlet and the side wall of the base.

[0009] The present invention is further configured as follows: a return push plate is provided in the slide groove, the return push plate and the longitudinal push plate are respectively located on both sides of the transverse push plate, and when the longitudinal push plate moves, the return push plate moves synchronously with the longitudinal push plate.

[0010] The present invention is further configured such that the distance between the return push plate and the longitudinal push plate is adjustable.

[0011] The present invention is further configured as follows: an adjustment frame is slidably connected to the slide rail, the return push plate is slidably connected to the adjustment frame, a threaded rod is rotatably connected to the adjustment frame, and the threaded rod is threadably matched with the return push plate.

[0012] The present invention is further configured such that: the regulating frame and the longitudinal push plate are fixedly connected to the two side walls of the cylinder respectively.

[0013] A cutting process for cutting parts, using the above tolerance checking structure, includes the following steps: S1, pushing the cutting piece on the conveyor belt that has completed cutting toward the base along the direction from the first limit piece to the second limit piece through the longitudinal push plate; S2, using a pressure sensor to determine whether the cutting piece can pass through the gap between the side wall of the chute and the first limiter. If the cutting piece cannot pass through, the cylinder drives the transverse push plate to push the cutting piece out from between the longitudinal push plate and the return push plate, and the new cutting piece enters S1. If the cutting piece can pass through, proceed to the next step. S3, pushing the cutting piece toward the second limiting piece through the longitudinal push plate; S4, using a pressure sensor to determine whether the cutting piece can pass through the gap between the side wall of the chute and the second stopper. When the cutting piece cannot pass through, the cylinder drives the transverse push plate to push the cutting piece out of the qualified outlet. When the cutting piece can pass through, the cutting piece is pushed out of the chute by the longitudinal push plate. S5, repeat S1 to S4; Among them, in said S4, when the cutting piece cannot pass through, the cutting piece is first pushed between the first limit piece and the second limit piece by the return push plate, and then the cylinder drives the lateral push plate to push the cutting piece out from the qualified outlet.

[0014] The present invention is further configured to feedback information that an inspection is required when three consecutive cutting pieces cannot pass through the S2 or when three consecutive cutting pieces can pass through the S4.

[0015] In summary, the present invention has the following beneficial effects: the cutting parts are kept moving on the same horizontal plane, and during the movement of each cutting part, it will only make a single lateral movement when pushed by the lateral push plate. Therefore, the movement path of the cutting parts is relatively simple, which is convenient for debugging and maintenance. When adjustments are required for cutting parts of different sizes, it is only necessary to replace the first limit member and the second limit member or adjust the position of the return push plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the cutting piece included in the present invention; Figure 3 It is a structural schematic diagram of the longitudinal push plate in the present invention.

[0017] In the figure: 1. base; 2. slide groove; 3. first limit piece; 4. second limit piece; 5. qualified outlet; 6. slide rail; 7. longitudinal push plate; 8. cylinder; 9. transverse push plate; 10. pressure sensor; 11. return push plate; 12. adjustment frame; 13. threaded rod. DETAILED DESCRIPTION

[0018] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Embodiment 1: A tolerance checking structure, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a testing module and a pushing module; The inspection module includes a base 1, a slide groove 2 penetrating through two ends of the base 1 is provided on the top surface of the base 1, a first stopper 3 and a second stopper 4 are fixedly connected to two ends of a side wall of the slide groove 2, the width of the first stopper 3 is smaller than the width of the second stopper 4, and a qualified outlet 5 is penetratingly provided on the side wall of the slide groove 2 provided with the first stopper 3; The pushing module includes a slide rail 6, the length of which is greater than that of the base 1. The slide rail 6 is located above the base 1. A longitudinal push plate 7 and a cylinder 8 are slidably connected to the slide rail 6. The cylinder 8 and the qualified outlet 5 are respectively located on both sides of the slide groove 2. A transverse push plate 9 is fixedly connected to the output end of the cylinder 8. The movement direction of the transverse push plate 9 is perpendicular to the movement direction of the longitudinal push plate 7. The bottom ends of the transverse push plate 9 and the longitudinal push plate 7 are both located in the slide groove 2. A pressure sensor 10 is provided on the longitudinal push plate 7. The pressure sensor 10 is electrically connected to the cylinder 8. The first limit member 3 and the second limit member 4 are both detachably connected to the base 1.

[0020] Specifically, a guide plate is fixedly connected to the side of the base 1, and the guide plate is located on the side of the first limit member 3 away from the second limit member 4. The side wall of the guide plate and the side wall of the slide groove 2 are in the same plane. The guide plate ensures that the cutting piece remains in contact with the inner wall of the slide groove 2 when entering the slide groove 2. The bottom surfaces of the two slide rails 6 are in contact with the top surface of the base 1. The cylinder 8 is located on one side of the base 1 and is slidably connected to one slide rail 6. A guide groove is opened on the side wall of the slide groove 2, and a transverse push plate 9 is slidably connected in the guide groove. The lowest point of the guide groove is higher than the lowest point of the slide groove 2 to avoid contact between the transverse push plate 9 and the cutting piece when the cutting piece slides along the length direction of the slide rail 6, thereby ensuring that the cutting piece can slide along the side wall of the slide groove 2. The first limit member 3 and the second limit member 4 are both detachably connected to the base 1 by bolts. By installing different first limit members 3 and second limit members 4, tolerances of different requirements can be adapted. During installation, the end face of the first limit member 3 and the second limit member The end faces of 4 are aligned with the two end faces of the base 1 respectively, and then cooperate with the bottom surface of the slide groove 2 and the side wall of the slide groove 2 to limit the first limit member 3 or the second limit member 4, thereby ensuring the installation accuracy of the first limit member 3 and the second limit member 4. An elastic pad is bonded to the side of the longitudinal push plate 7 close to the cutting piece, and a pressure plate is bonded to the side of the elastic pad away from the longitudinal push plate 7. The elastic pad is made of rubber material, and a through hole is opened on the elastic pad. The pressure sensor 10 fits the side wall of the longitudinal push plate 7 and is located in the through hole. Under normal circumstances, the pressure plate is supported by the elastic pad, so that the pressure plate and the longitudinal push plate 7 move synchronously, thereby pushing the cutting piece to avoid the pressure sensor 10 from being triggered, reducing the accuracy requirements for the pressure sensor 10, and thereby reducing the equipment cost. When the cutting piece cannot move forward, under the pressure of the longitudinal push plate 7, the elastic pad is further deformed, causing the pressure sensor 10 to contact the pressure plate. The pressure sensor 10 obtains information and converts it into an electrical signal and sends it to the cylinder 8.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the width of the first limit member 3 gradually decreases in the direction approaching the second limit member 4, and the width of the second limit member 4 gradually decreases in the direction approaching the first limit member 3. A chamfer is provided between the bottom surface of the qualified outlet 5 and the side wall of the base 1, specifically, the first limit member 3 and the second limit member 4 form an arc surface on the side in contact with the cutting member. When the cutting member is checked and qualified, the cylinder 8 pushes the cutting member outward through the transverse push plate 9. Under the guidance of the arc surface, the cutting member moves toward the direction of the qualified outlet 5, avoiding the cutting member from colliding with the first limit member 3 or the second limit member 4 and causing the cutting member to be stuck in the slide groove 2, thereby ensuring the smooth progress of the subsequent unloading process. A slope is formed between the side wall of the qualified outlet 5 and the side wall of the base 1, thereby ensuring that the cutting member can fall smoothly after being pushed out by the transverse push plate 9 and entering the qualified outlet 5, thereby avoiding the cutting member from accumulating at the qualified outlet 5.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, a return push plate 11 is provided in the slide groove 2, and the return push plate 11 and the longitudinal push plate 7 are respectively located on both sides of the transverse push plate 9. When the longitudinal push plate 7 moves, the return push plate 11 moves synchronously with the longitudinal push plate 7, and the distance between the return push plate 11 and the longitudinal push plate 7 is adjustable. An adjusting frame 12 is slidably connected to the slide rail 6, and the return push plate 11 is slidably connected to the adjusting frame 12. A threaded rod 13 is rotatably connected to the adjusting frame 12, and the threaded rod 13 is threadedly matched with the return push plate 11. The adjusting frame 12 and the longitudinal push plate 7 are respectively fixedly connected to the two side walls of the cylinder 8.

[0023] Specifically, the two ends of the longitudinal push plate 7 are respectively slidably connected to the two slide rails 6, one end of the longitudinal push plate 7 is fixedly connected to the side wall of the cylinder 8 by bolts, and the two ends of the adjustment frame 12 are respectively slidably connected to the two slide rails 6, and one end of the adjustment frame 12 is fixedly connected to the side wall of the cylinder 8 by bolts. By fixing the longitudinal push plate 7 and the adjustment frame 12 on both sides of the cylinder 8, it is ensured that the cylinder 8, the longitudinal push plate 7 and the adjustment frame 12 can move synchronously along the slide rail 6, and it is ensured that the transverse push plate 9 can keep aligned with the cutting piece. The length of the transverse push plate 9 is equal to the distance between the pressure plate and the adjustment frame 12, which ensures that the transverse push plate 9 does not push the cutting piece when pushing the cutting piece. It will cause the cutting piece to tilt, thereby ensuring that the cutting piece can smoothly leave the base 1 from the qualified outlet 5. Through grooves are provided on both sides of the adjustment frame 12. The top of the return push plate 11 is slidably connected in the through groove. The end of the threaded rod 13 is fixedly connected with a knob. The threaded rod 13 is rotated by turning the knob, and then the return push plate 11 slides along the through groove, changing the distance between the return push plate 11 and the pressure plate to adapt to cutting pieces of different lengths. The return push plate 11 is located on the side of the threaded rod 13 away from the second limit member 4, ensuring the distance between the return push plate 11 and the second limit member 4, and avoiding contact between the return push plate 11 and the second limit member 4.

[0024] Embodiment 2: A cutting process for cutting parts, using the above tolerance checking structure, includes the following steps: S1, push the cutting piece on the conveyor belt that has been cut to the base 1 along the direction from the first limiter 3 to the second limiter 4 by the longitudinal push plate 7; S2, determine whether the cutting piece can pass through the gap between the side wall of the chute 2 and the first limiter 3 through the pressure sensor 10. When the cutting piece cannot pass through, the cylinder 8 drives the transverse push plate 9 to push the cutting piece out from between the longitudinal push plate 7 and the return push plate 11, and the new cutting piece enters S1. When the cutting piece can pass through, proceed to the next step; S3, pushing the cutting piece toward the second limiting piece 4 through the longitudinal push plate 7; S4, using the pressure sensor 10 to determine whether the cutting piece can pass through the gap between the side wall of the chute 2 and the second stopper 4. When the cutting piece cannot pass through, the cylinder 8 drives the transverse push plate 9 to push the cutting piece out of the qualified outlet 5. When the cutting piece can pass through, the cutting piece is pushed out of the chute 2 by the longitudinal push plate 7. S5, repeat S1 to S4; Among them, in S4, when the cutting piece cannot pass, the cutting piece is first pushed to between the first limit piece 3 and the second limit piece 4 by the return push plate 11, and then the cylinder 8 drives the lateral push plate 9 to push the cutting piece from the qualified outlet 5.

[0025] Specifically, when the cutting piece fits the guide plate, the cutting piece is located at the end of the conveyor belt of the previous link, and the bottom surface of the cutting piece is flush with the bottom surface of the slide groove 2. The longitudinal push plate 7 is located on the side of the cutting piece away from the base 1. The longitudinal push plate 7 moves along the slide rail 6 toward the base 1. The cutting piece moves with the longitudinal push plate 7. When the upper deviation of the cutting piece is unqualified, one end of the cutting piece abuts against one end of the first limiter 3. The pressure sensor 10 is subjected to pressure between the pressure plate and the longitudinal push plate 7 and transmits the signal to the cylinder 8. The output end of the cylinder 8 extends outward, and the cutting piece is pushed through the transverse push plate 9. The cut piece is pushed back onto the conveyor belt, and the ejection structure arranged on the conveyor belt ejects the cut piece to a storage place for unqualified products. Finally, the cylinder 8 controls the transverse push plate 9 to be retracted. When the upper deviation of the cut piece is qualified, the cut piece passes through the gap between the side wall of the slide groove 2 and the side wall of the first limiter 3. At this time, the only resistance encountered by the cut piece is friction, which prevents the pressure sensor 10 from being triggered due to excessive deformation of the elastic pad. When the lower deviation of the cut piece is unqualified, as the longitudinal push plate 7 drives the cut piece to approach the second limiter 4, the cut piece finally passes through the side wall of the slide groove 2 and the side wall of the second limiter 4. The gap between the walls and the base 1 is formed. When the lower deviation of the cutting piece is qualified, the cutting piece cannot leave the base 1 from the gap between the side wall of the slide groove 2 and the side wall of the second stopper 4. The pressure sensor 10 is subjected to pressure between the pressure plate and the longitudinal push plate 7. At this time, the cylinder 8 and the adjustment frame 12 fixed to the cylinder 8 move along the slide rail 6 toward the direction close to the first stopper 3, so that the return push plate 11 pushes the cutting piece to a position aligned with the qualified outlet 5, and then the output end of the cylinder 8 extends outward, and the cutting piece is pushed out of the qualified outlet 5 through the transverse push plate 9, reducing the distance between the cutting piece and the first stopper 3. The friction between the two limit members 4 ensures the quality of the cutting piece and the service life of the second limit member 4, and avoids the tilted cutting piece from being stuck at the qualified outlet 5, because the cutting piece moves on the same horizontal plane, and during the movement of each cutting piece, it will only make a single lateral movement when pushed by the lateral push plate 9. Therefore, the movement path of the cutting piece is relatively simple, which is convenient for debugging and maintenance. When adjustments are needed for cutting pieces of different sizes, it is only necessary to replace the first limit member 3 and the second limit member 4 or adjust the position of the return push plate 11.

[0026] When three consecutive cutting pieces cannot pass through S2, or three consecutive cutting pieces can pass through S4, information that needs to be checked is fed back. Specifically, position sensors are fixedly connected to the ends of the pressure plate and the base 1. When the pressure sensor 10 is triggered three times consecutively outside the base 1, or when the pressure sensor 10 is not triggered three times consecutively inside the base 1, it means that multiple unqualified cutting pieces of the same type appear consecutively. At this time, the operator is reminded through the indicator light and the speaker, and the machine is stopped for inspection to avoid the continued appearance of large quantities of unqualified cutting pieces.

[0027] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A tolerance checking structure, characterized in that: Including inspection module and push module; The inspection module comprises a base (1), a top surface of the base (1) is provided with a slide groove (2) penetrating through two ends of the base (1), two ends of a side wall of the slide groove (2) are respectively fixedly connected with a first limiter (3) and a second limiter (4), the width of the first limiter (3) is smaller than the width of the second limiter (4), and a qualified outlet (5) is penetratingly provided on the side wall of the slide groove (2) provided with the first limiter (3); The pushing module comprises a slide rail (6), the length of the slide rail (6) is greater than the length of the base (1), the slide rail (6) is located above the base (1), a longitudinal push plate (7) and a cylinder (8) are slidably connected to the slide rail (6), the cylinder (8) and the qualified outlet (5) are respectively located on both sides of the slide groove (2), the output end of the cylinder (8) is fixedly connected to a transverse push plate (9), the movement direction of the transverse push plate (9) is perpendicular to the movement direction of the longitudinal push plate (7), the bottom end of the transverse push plate (9) and the bottom end of the longitudinal push plate (7) are both located in the slide groove (2), and a pressure sensor (10) is provided on the longitudinal push plate (7), and the pressure sensor (10) is electrically connected to the cylinder (8).

2. The tolerance checking structure according to claim 1, characterized in that: The first limiting member (3) and the second limiting member (4) are both detachably connected to the base (1).

3. The tolerance checking structure according to claim 2, characterized in that: The width of the first limiting member (3) gradually decreases in a direction approaching the second limiting member (4), and the width of the second limiting member (4) gradually decreases in a direction approaching the first limiting member (3).

4. The tolerance checking structure according to claim 3, characterized in that: A chamfer is provided between the bottom surface of the qualified outlet (5) and the side wall of the base (1).

5. The tolerance checking structure according to claim 1, characterized in that: A return push plate (11) is provided in the slide groove (2), and the return push plate (11) and the longitudinal push plate (7) are respectively located on both sides of the transverse push plate (9). When the longitudinal push plate (7) moves, the return push plate (11) moves synchronously with the longitudinal push plate (7).

6. The tolerance checking structure according to claim 5, characterized in that: The distance between the return push plate (11) and the longitudinal push plate (7) is adjustable.

7. The tolerance checking structure according to claim 6, characterized in that: The slide rail (6) is slidably connected to an adjustment frame (12), the return push plate (11) is slidably connected to the adjustment frame (12), the adjustment frame (12) is rotatably connected to a threaded rod (13), and the threaded rod (13) is threadably matched with the return push plate (11).

8. The tolerance checking structure according to claim 7, characterized in that: The regulating frame (12) and the longitudinal push plate (7) are respectively fixedly connected to the two side walls of the cylinder (8).

9. A cutting part blanking process, using the tolerance checking structure according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, pushing the cutting piece on the conveyor belt that has completed cutting toward the base (1) along the direction from the first limiting piece (3) to the second limiting piece (4) by means of a longitudinal push plate (7); S2, determining whether the cutting piece can pass through the gap between the side wall of the slide groove (2) and the first stopper (3) through the pressure sensor (10); when the cutting piece cannot pass through, the cylinder (8) drives the transverse push plate (9) to push the cutting piece out from between the longitudinal push plate (7) and the return push plate (11), and the new cutting piece enters S1; when the cutting piece can pass through, proceeding to the next step; S3, pushing the cutting piece toward the second limiting piece (4) via the longitudinal pushing plate (7); S4, determining whether the cutting piece can pass through the gap between the side wall of the chute (2) and the second stopper (4) by means of a pressure sensor (10); when the cutting piece cannot pass through, the cylinder (8) drives the transverse push plate (9) to push the cutting piece out of the qualified outlet (5); when the cutting piece can pass through, the cutting piece is pushed out of the chute (2) by the longitudinal push plate (7); S5, repeat S1 to S4; Wherein, in said S4, when the cutting piece cannot pass through, the cutting piece is first pushed between the first stopper (3) and the second stopper (4) by the return push plate (11), and then the cylinder (8) drives the transverse push plate (9) to push the cutting piece out from the qualified outlet (5).

10. The cutting piece blanking process according to claim 9, characterized in that: When three consecutive cutting pieces cannot pass through in S2, or when three consecutive cutting pieces can pass through in S4, information that an inspection is required is fed back.

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