Secondary positioning device for silica gel pad

Abstract

The utility model discloses a silica gel pad secondary positioning device which is characterized in that a cam mechanism, a first roller, a second roller, a third roller, an inclined surface of a first side surface positioning seat and an inclined surface of a second side surface positioning seat are arranged in a matched manner; according to the secondary positioning device, positioning of the silica gel pad on the end face, the first side face and the second side face can be achieved only through one jacking assembly, the number of needed air cylinders and occupied space on the XY plane are greatly reduced, the whole device is more compact in structure, the problem of interference with peripheral equipment is avoided, and the production efficiency is improved. And the overall layout flexibility of the production line is improved. In addition, due to the design, the using number of the air cylinders and other electrical elements is reduced, and the material cost and the manufacturing cost are directly reduced.

Description

Technical Field

[0001] The utility model relates to the field of silicone pad assembly, and particularly relates to a secondary positioning device for silicone pads. Background Art

[0002] In the production and manufacturing process of blood glucose meters, as one of the key components, the assembly quality of silicone pads directly affects the sealing performance, stability and user experience of blood glucose meters. At present, most of the silicone pads are manually grasped and assembled. During assembly, workers insert the two ear seats of the silicone pad into the connecting seat, which requires high labor costs and low productivity. To achieve automatic assembly, a carrier capable of realizing the positioning function is needed to perform secondary positioning on the silicone pad after feeding, so as to facilitate the subsequent automatic material taking by the robot gripper. However, at present, most of the secondary positioning of silicone pads uses three groups of cylinders to drive the positioning products. One end face is used as the reference surface, and the two side faces and one end face are respectively driven by a group of cylinder driving mechanisms to extend and position the products; nine groups of cylinder positioning mechanisms are required for secondary positioning of three products; in this way of secondary positioning, it will occupy a relatively large XY plane space and is prone to interference with the surrounding; moreover, due to the use of more conductive cylinder driving mechanisms, the cost is also relatively high.

[0003] Therefore, how to overcome the above-mentioned defects has become an important issue that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0004] The utility model overcomes the above-mentioned technical deficiencies and provides a secondary positioning device for silicone pads.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A secondary positioning device for a silica gel pad, comprising: a mounting base 1, a silica gel pad carrier 2 disposed on the mounting base 1 for placing the silica gel pad therein, an end face positioning seat 3 capable of moving forward and backward disposed on the front side / rear side of the silica gel pad carrier 2, a first side face positioning seat 4 capable of moving left and right disposed on the mounting base 1, a second side face positioning seat 5 capable of moving left and right and capable of cooperating with the first side face positioning seat 4 to jointly clamp or loosen the silica gel pad in the silica gel pad carrier 2, and a cam mechanism for driving the end face positioning seat 3 to move forward and backward and driving the first side face positioning seat 4 and the second side face positioning seat 5 to move relatively; the cam mechanism includes: a jacking assembly 61 disposed below the mounting base 1, a first roller 60 disposed on the top of the jacking assembly 61, a push block 62 cooperating with the first roller 60 for converting the force of the up and down movement of the jacking assembly 61 into the force for driving the end face positioning seat 3 to move forward and backward, a second roller 63 connected to one side of the end face positioning seat 3 and rolling along the left side face of the first side face positioning seat 4, and a third roller 64 disposed opposite to the second roller 63 left and right and rolling along the right side face of the second side face positioning seat 5; the left side face of the first side face positioning seat 4 and the right side face of the second side face positioning seat 5 are both inclined planes extending inward from back to front.

[0007] Preferably, the silica gel pad carrier 2 is provided with one or more material grooves 21 for placing the silica gel pad therein, and each material groove 21 is provided with a first opening groove 22 at the end face position of the silica gel pad, a first side through port 23 opened on the first side face of the end face of the silica gel pad, and a second side through port 24 opened on the second side face of the end face of the silica gel pad.

[0008] Preferably, the first side face positioning seat 4 is provided with first clamping blocks 41 extending backward and upward and corresponding in number to the number of the material grooves 21, and the second side face positioning seat 5 is provided with one or more second clamping blocks 51 extending forward and upward and opposite to the first clamping blocks 41 left and right; the first clamping blocks 41 penetrate upward through the first side through port 23, and the second clamping blocks 51 penetrate upward through the second side through port 24.

[0009] Preferably, the push block 62 is provided with a longitudinally extending portion 621 connected below the end face positioning seat 3, a vertically extending portion 622 extending downward from the end of the longitudinally extending portion 621, and a guiding inclined plane 6221 extending obliquely upward and forward from the end of the vertically extending portion 622, and the first roller 60 can roll along the guiding inclined plane 6221 by the jacking of the jacking assembly 61.

[0010] Preferably, the mounting base 1 is provided with a first avoidance groove 11 capable of avoiding the vertically extending portion 622. Above the rear position of the mounting base 1, a support base 7 is connected. The support base 7 includes two vertical plates 71 connected to the left and right side edges of the rear position of the mounting base 1 and a horizontal plate body 72 connected to the tops of the two vertical plates 71. The horizontal plate body 72 is provided with a second avoidance groove 73 at a position symmetrically above and below the first avoidance groove 11, which can not hinder the extension of the longitudinally extending portion 621.

[0011] Preferably, the horizontal plate body 72 is provided with a first guide rail 721 for the end face positioning seat 3 to move along its front-back direction, and a first limit blocking block 722 is provided on one side of the extension end of the first guide rail 721; a first spring 8 for rebounding when the end face positioning seat 3 is not stressed is connected between the end face positioning seat 3 and the first limit blocking block 722.

[0012] Preferably, the mounting base 1 is provided with a second guide rail 12 extending horizontally for the first side positioning seat 4 to move along its left-right direction, and a third guide rail 13 extending horizontally and located behind the second guide rail 12 for the second side positioning seat 5 to move along its left-right direction; on the left and right sides of the mounting base 1, a left blocking block 141 and a right blocking block 142 are provided. Both the second guide rail 12 and the third guide rail 13 are located between the left blocking block 141 and the right blocking block 142. A second spring 91 is provided between the right blocking block 142 and the right side of the first side positioning seat 4, and a third spring 92 is provided between the left blocking block 141 and the left side of the second side positioning seat 5.

[0013] Preferably, the left blocking block 141 has a structure that is lower in the front and higher in the rear to form a first avoidance notch 1411 for avoiding the second roller 63 in the front; the right blocking block 142 has a structure that is higher in the front and lower in the rear to form a second avoidance notch 1421 for avoiding the third roller 64 in the rear.

[0014] Preferably, the end face positioning seat 3 protrudes forward with protrusions 31 corresponding to the number of the material grooves 21.

[0015] Preferably, an X-axis module 10 for driving its left-right movement is connected below the mounting base 1. One or more lifting components 61 are provided on one side of the X-axis module 10 parallel to its extension direction. The lifting component 61 includes: a cylinder 611 and a connecting block 612 driven by the cylinder 611 to move up and down; the first roller 60 is connected to the top of the connecting block 612.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. In this case, through the setting of the cam mechanism and the cooperation of its first roller, second roller, third roller, and the inclined surfaces of the first side positioning seat and the second side positioning seat, the secondary positioning device of this case can achieve the positioning of the silicone pad on the end face, the first side, and the second side with only one set of lifting components. This greatly reduces the number of required cylinders and the space occupied on the XY plane, not only making the overall structure of the device more compact, but also avoiding interference problems with surrounding equipment and improving the overall layout flexibility of the production line. Moreover, such a design also reduces the number of cylinders and other electrical components used, directly reducing the material cost and manufacturing cost.

[0018] 2. The setting of the material trough in this case facilitates the automatic alignment of the silicone pad to a predetermined position during placement, eliminating the need for excessive manual adjustment. This is beneficial for improving the accuracy and efficiency of subsequent automated assembly processes. The setting of the first opening groove enables the protrusion on the end face positioning seat to extend into and withdraw from the material trough to press and position the end face of the silicone pad, allowing the end face positioning seat to accurately fix the end face of the silicone pad. The setting of multiple material troughs on one silicone pad carrier facilitates the simultaneous processing of multiple silicone pads, improving the utilization rate and productivity of the equipment. The common setting of the first side through-port and the second side through-port enables the first clamping block and the second clamping block to accurately penetrate through the left and right sides of the silicone pad, allowing the two side faces of the silicone pad in the secondary positioning device of this case to be accurately positioned and fixed in the carrier. The automated assembly robot can operate more smoothly and efficiently during the material picking and assembly processes, thereby reducing the downtime for adjustment caused by inaccurate silicone pad positions and improving the overall efficiency of the assembly process. In addition, the setting where the first clamping block extends backward and upward and the second clamping block extends forward and upward can make full use of the longitudinal space on the mounting seat, facilitating a more compact setting. Brief Description of the Drawings

[0019] Figure 1 is the three-dimensional structural schematic diagram of this case.

[0020] Figure 2 is the structural schematic diagram of this case with the X-axis module hidden and only one set of lifting components retained.

[0021] Figure 3 is one of the structural schematic diagrams of this case with some structures hidden.

[0022] Figure 4 is the second structural schematic diagram of this case with some structures hidden.

[0023] Figure 5 is the structural schematic diagram of the silicone pad carrier of this case with a silicone pad placed on it. Detailed Description of the Preferred Embodiment

[0024] The features of the present utility model and other related features are further described in detail through the following embodiments for the understanding of those skilled in the same industry:

[0025] Figures 1 to 5 As shown, a secondary positioning device for a silica gel pad includes: a mounting base 1, a silica gel pad carrier 2 disposed on the mounting base 1 for placing the silica gel pad 100 therein, an end face positioning seat 3 capable of moving forward and backward disposed at the rear side of the silica gel pad carrier 2, a first side face positioning seat 4 capable of moving left and right disposed on the mounting base 1, a second side face positioning seat 5 capable of moving left and right and capable of cooperating with the first side face positioning seat 4 to jointly clamp or loosen the silica gel pad in the silica gel pad carrier 2, and a cam mechanism for driving the end face positioning seat 3 to move forward and backward and driving the first side face positioning seat 4 and the second side face positioning seat 5 to move relative to each other; the cam mechanism includes: a jacking assembly 61 disposed below the mounting base 1, a first roller 60 disposed at the top of the jacking assembly 61, a push block 62 cooperating with the first roller 60 for converting the force of the up and down movement of the jacking assembly 61 into the force for driving the end face positioning seat 3 to move forward and backward, a second roller 63 connected to one side of the end face positioning seat 3 and rolling in cooperation with the left side face of the first side face positioning seat 4, and a third roller 64 opposite to the second roller 63 left and right and rolling in cooperation with the right side face of the second side face positioning seat 5; the left side face of the first side face positioning seat 4 and the right side face of the second side face positioning seat 5 are both inclined surfaces extending inward from the rear to the front.

[0026] As described above, through the cooperation setting of the cam mechanism, its first roller, second roller, third roller, and the inclined surfaces of the first side face positioning seat and the second side face positioning seat in this case, the secondary positioning device of this case can realize the positioning of the silica gel pad on the end face, the first side face, and the second side face only by using a set of jacking assemblies, greatly reducing the number of required cylinders and the space occupation on the XY plane. This not only makes the structure of the whole device more compact, but also avoids the interference problem with surrounding equipment, improving the overall layout flexibility of the production line. Moreover, such a design also reduces the number of cylinders and other electrical components used, directly reducing the material cost and manufacturing cost.

[0027] As Figures 2 to 5As shown, as a preferred embodiment, the silicone pad carrier 2 is provided with one or more slots 21 for placing the silicone pads therein. Each slot 21 is provided with a first opening groove 22 at the end face position of the silicone pad, a first side through port 23 on the first side face of the end face of the silicone pad, and a second side through port 24 on the second side face of the end face of the silicone pad. During specific implementation, the end face positioning seat 3 protrudes forward with protruding parts 31 corresponding to the number of slots 21. The first side face positioning seat 4 is provided with first clamping blocks 41 extending backward and upward and corresponding to the number of slots 21, and the second side face positioning seat 5 is provided with one or more second clamping blocks 51 extending forward and upward and opposite to the first clamping blocks 41 left and right; the first clamping blocks 41 pass upward through the first side through port 23, and the second clamping blocks 51 pass upward through the second side through port 24. During specific implementation, the first clamping blocks 41 and the second clamping blocks 51 located on the left and right sides of the same slot and opposite to each other form a clamping jaw, and the first clamping blocks 41 and the second clamping blocks 51 can be made to approach or move away from each other through the movement of the cam mechanism, so that the clamping jaw can clamp and release the silicone pad.

[0028] As described above, the setting of the slot 21 facilitates the automatic alignment of the silicone pad to a predetermined position during placement without excessive manual adjustment. This is beneficial to improving the accuracy and efficiency of the subsequent automated assembly process. The setting of the first opening groove 22 enables the protruding part on the end face positioning seat 3 to extend into and withdraw from the slot 21 to press and position the end face of the silicone pad, so that the end face positioning seat can accurately fix the end face of the silicone pad.

[0029] The setting of multiple slots on one silicone pad carrier facilitates the simultaneous processing of multiple silicone pads, improving the utilization rate and productivity of the equipment. The common setting of the first side through port 23 and the second side through port 24 facilitates the accurate penetration of the first clamping block and the second clamping block on the left and right sides of the silicone pad, so that the two side faces of the silicone pad of the secondary positioning device in this case can be accurately positioned and fixed in the carrier. The automated assembly robot can be more smooth and efficient during the material taking and assembly processes, thereby reducing the downtime adjustment time caused by inaccurate silicone pad positions and improving the overall efficiency of the assembly process. In addition, the setting that the first clamping blocks 41 extend backward and upward and the second clamping blocks 51 extend forward and upward can make full use of the longitudinal space on the mounting seat, which is beneficial to a more compact setting.

[0030] As Figure 2As shown, during specific implementation, the pushing block 62 is provided with a longitudinally extending portion 621 connected to the lower part of the end face positioning seat 3, and a vertically extending portion 622 extending downward from the end of the longitudinally extending portion 621. The end of the vertically extending portion 622 is provided with a guiding inclined surface 6221 extending obliquely upward and forward. The first roller 60 can roll along the guiding inclined surface 6221 due to the jacking of the jacking assembly 61. In this way, through the arrangement of the longitudinally extending portion 621 and the vertically extending portion 622, it is convenient for the pushing block 62 to convert the jacking force in the first roller into a force for pushing the end face positioning seat 3 forward. It can achieve its pushing function without increasing additional longitudinal space, with a more compact design and further improving the space utilization rate. The oblique design of the guiding inclined surface 6221 not only ensures the effective transmission of force but also increases the stability of the pushing block 62 during the pushing process, so that the entire pushing action can quickly respond to the control signal and improve the overall action efficiency of the production line.

[0031] As Figure 3 and Figure 4 shown, during specific implementation, the mounting seat 1 is provided with a first avoidance groove 11 capable of avoiding the vertically extending portion 622. Above the rear position of the mounting seat 1, a support seat 7 is connected. The support seat 7 includes two vertical plates 71 connected to the left and right side edges of the rear position of the mounting seat 1 and a transverse plate body 72 connected to the tops of the two vertical plates 71. The transverse plate body 72 is provided with a second avoidance groove 73 at a position symmetrically above and below the first avoidance groove 11 that can not hinder the extension of the longitudinally extending portion 621. In this way, through the arrangement of the first avoidance groove 11 and the second avoidance groove 73, interference between the longitudinally extending portion 621 and the vertically extending portion 622 of the pushing block 62 and the mounting seat 1 and the support seat 7 is avoided, making the entire structure more compact and the movement smoother. Moreover, the first avoidance groove 11 and the second avoidance groove 73 can also play a role in limiting and guiding the pushing block 62. The arrangement of the support seat 7 and its two vertical plates 71 and the transverse plate body 72 can play a role in raising the height, being flush with the end face positioning seat 3, facilitating the subsequent installation of the spring, and ensuring the stable movement of the end face positioning seat 3 during rebound.

[0032] As Figure 3As shown, during specific implementation, two first guide rails 721 for the end face positioning seat 3 to move along its front-back direction are provided on the transverse plate body 72, and a first limit stop block 722 is provided on one side of the extension end of each first guide rail 721; a first spring 8 that can rebound when the end face positioning seat 3 is not stressed is connected between the end face positioning seat 3 and the first limit stop block 722. In this way, the setting of the first guide rails 721 provides precise guidance for the front-back movement of the end face positioning seat 3, ensuring the position accuracy during the pushing process. The setting of the first spring 8 enables the end face positioning seat 3 to automatically reset when not stressed, improving the automation degree and flexibility of the device. The setting of the first limit stop block 722 effectively prevents the first spring 8 from being damaged due to over-positioning of the end face positioning seat 3 during the pushing process.

[0033] As Figure 3 and Figure 4 shown, during specific implementation, a second guide rail 12 extending horizontally for the first side positioning seat 4 to move along its left-right direction and a third guide rail 13 extending horizontally and located behind the second guide rail 12 for the second side positioning seat 5 to move along its left-right direction are provided on the mounting seat 1; left and right side blocking blocks 141 and 142 are provided on the left and right sides of the mounting seat 1, both the second guide rail 12 and the third guide rail 13 are located between the left side blocking block 141 and the right side blocking block 142, a second spring 91 is provided between the right side blocking block 142 and the right side of the first side positioning seat 4, and a third spring 92 is provided between the left side blocking block 141 and the left side of the second side positioning seat 5. In this way, the setting of the second guide rail 12 and the third guide rail 13 enables the first side positioning seat 4 and the second side positioning seat 5 to perform precise guiding movements along different guide rails respectively. The second spring 91 and the third spring 92 provide the function of automatic return for the first side positioning seat and the second side positioning seat, and can quickly return to the initial position when not stressed, improving the response speed and efficiency of the device. The left side blocking block 141 and the right side blocking block 142, as limiting structures, effectively prevent the two side positioning seats from over-stretching the springs due to over-positioning during the movement, causing the springs to be easily damaged.

[0034] As Figure 4 shown, during specific implementation, the left side blocking block 141 has a structure that is lower in the front and higher in the back to form a first avoidance notch 1411 for avoiding the second roller 63 in the front; the right side blocking block 142 has a structure that is higher in the front and lower in the back to form a second avoidance notch 1421 for avoiding the third roller 64 in the back. In this way, the design of the first avoidance notch 1411 and the second avoidance notch 1421 avoids the interference between the second roller 63 and the third roller 64 and the blocking blocks during the movement, ensuring the smooth movement of the rollers.

[0035] As Figure 1As shown in the figure, in specific implementation, an X-axis module 10 for driving the mounting base 1 to move left and right is connected below the mounting base 1. One or more jacking components 61 are provided on one side of the X-axis module 10 parallel to its extending direction. The jacking component 61 includes: a cylinder 611 and a connecting block 612 driven by the cylinder 611 to move up and down; the first roller 60 is connected to the top of the connecting block 612.

[0036] As described above, by introducing the X-axis module 10, the mounting base 1 can move freely in the horizontal direction and can accurately move to the specific position of the entire silicone pad positioning and assembling device, improving the adaptability and production efficiency of the production line. The jacking component 61 uses the cylinder 611 as the power source, and drives the first roller 60 to move up and down through the connecting block 612, simplifying the mechanical structure, improving the degree of automation, reducing manual intervention, and lowering the labor intensity. The setting of multiple jacking components 61 facilitates the realization of the opening and clamping functions at other workstations. The jacking component at the previous workstation can first open, then clamp after the silicone pad is placed in the material groove, and then be transported to the next workstation and reopened, and finally be picked up by the manipulator. Multiple jacking components 61 can cooperate flexibly with mechanisms at different positions.

[0037] As described above, the working principle of the secondary positioning device for silicone pads in this case is as follows:

[0038] When the jacking component jacks up, the first roller moves upward along the inclined surface at the bottom of the push block, so that the push block can move backward, driving the end face positioning seat connected to the push block to move backward along the first guide rail together, so that the second roller moves from front to back along the left guiding inclined surface of the first side positioning seat, causing the first side positioning seat to move to the right, and at the same time causing the third roller to move from front to back along the right guiding inclined surface of the second side positioning seat, causing the second side positioning seat to move to the left, so that the first clamping block and the second clamping block on both sides of the same material groove move away from each other, thus realizing the opening of the silicone pad carrier. After the external manipulator automatically grabs the silicone pad and feeds it onto the silicone pad carrier, the jacking component descends, so that the end face positioning seat is no longer stressed, and under the elastic force of the first spring, the second spring, and the third spring, the convex part of the end face positioning seat and the clamping blocks of the two side positioning seats clamp the end face and the two sides of the silicone pad respectively to position the silicone pad. After the carrier is transported in place, the gripper descends to pick up the material, and the jacking mechanism jacks up to open the carrier, thus realizing the high-efficiency and high-precision secondary positioning of the silicone pad.

[0039] As described above, what this case protects is a secondary positioning device for silicone pads. All technical solutions identical or similar to this case should be regarded as falling within the protection scope of this case.

Claims

1. A silicone pad secondary positioning device, characterized in that: include: A mounting seat (1), a silicone pad carrier (2) disposed on the mounting seat (1) and in which the silicone pad is placed, an end face positioning seat (3) disposed on the front side / rear side of the silicone pad carrier (2) and capable of moving forward and backward, a first side face positioning seat (4) disposed on the mounting seat (1) and capable of moving left and right, a second side face positioning seat (5) capable of moving left and right and capable of cooperating with the first side face positioning seat (4) to clamp or release the silicone pad in the silicone pad carrier (2), and a cam mechanism for driving the end face positioning seat (3) to move forward and backward and driving the first side face positioning seat (4) and the second side face positioning seat (5) to move relative to each other; the cam mechanism comprises: a mounting seat (1) disposed on the mounting seat (1); A lifting assembly (61) at the bottom, a first roller (60) arranged on the top of the lifting assembly (61), a push block (62) cooperating with the first roller (60) for converting the force of the up and down movement of the lifting assembly (61) into a force that drives the end face positioning seat (3) to move forward and backward, a second roller (63) connected to one side of the end face positioning seat (3) and rolling along the left side of the first side positioning seat (4), and a third roller (64) opposite to the second roller (63) and rolling along the right side of the second side positioning seat (5); the left side of the first side positioning seat (4) and the right side of the second side positioning seat (5) are both inclined surfaces extending from rear to front and inward.

2. The silicone pad secondary positioning device according to claim 1, characterized in that: The silicone pad carrier (2) is provided with one or more material troughs (21) for placing the silicone pad therein, each material trough (21) being provided with a first opening groove (22) at the end surface of the silicone pad, a first side opening (23) at the first side surface of the end surface of the silicone pad, and a second side opening (24) at the second side surface of the end surface of the silicone pad.

3. The silicone pad secondary positioning device according to claim 2, characterized in that: The first side positioning seat (4) is provided with first clamping blocks (41) extending backward and upward, the number of which corresponds to the number of the material troughs (21), and the second side positioning seat (5) is provided with one or more second clamping blocks (51) extending forward and upward and opposite to the first clamping blocks (41) on the left and right; the first clamping block (41) passes through the first side opening (23) upward, and the second clamping block (51) passes through the second side opening (24) upward.

4. The silicone pad secondary positioning device according to claim 1, characterized in that: The push block (62) is provided with a longitudinal extension portion (621) connected to the lower side of the end surface positioning seat (3), and a vertical extension portion (622) extending downward from the end of the longitudinal extension portion (621); the end of the vertical extension portion (622) is provided with a guide inclined surface (6221) extending obliquely from bottom to top and forward; the first roller (60) can roll along the guide inclined surface (6221) by being lifted by the lifting assembly (61).

5. The silicone pad secondary positioning device according to claim 4, characterized in that: The mounting seat (1) is provided with a first avoidance groove (11) capable of avoiding the vertical extension portion (622); a support seat (7) is connected to the upper rear side of the mounting seat (1); the support seat (7) comprises two vertical upright plates (71) connected to the left and right side edges of the rear side of the mounting seat (1) and a transverse plate body (72) connected to the top of the two vertical upright plates (71); the transverse plate body (72) is provided with a second avoidance groove (73) capable of not hindering the extension of the longitudinal extension portion (621) at a position symmetrical above and below the first avoidance groove (11).

6. The silicone pad secondary positioning device according to claim 5, characterized in that: The transverse plate (72) is provided with a first guide rail (721) for the end surface positioning seat (3) to move forward and backward along the first guide rail, and a first position limiting block (722) is provided on one side of the extended end of the first guide rail (721); the end surface positioning seat (3) and the first position limiting block (722) are A first spring (8) is connected therebetween and is used to rebound when the end surface positioning seat (3) is not subjected to force.

7. The silicone pad secondary positioning device according to claim 2 or 6, characterized in that: The mounting seat (1) is provided with a second guide rail (12) extending transversely and used for the first side positioning seat (4) to move in the left-right direction thereof, and a third guide rail (13) extending transversely and located at the rear side of the second guide rail (12) and used for the second side positioning seat (5) to move in the left-right direction thereof; The mounting seat (1) is provided with a left blocking block (141) and a right blocking block (142) on its left and right sides; the second guide rail (12) and the third guide rail (13) are both located between the left blocking block (141) and the right blocking block (142); a second spring (91) is provided between the right blocking block (142) and the right side of the first side positioning seat (4); and a third spring (92) is provided between the left blocking block (141) and the left side of the second side positioning seat (5).

8. The silicone pad secondary positioning device according to claim 7, characterized in that: The left blocking block (141) is a structure with a lower front and a higher rear, so as to form a first avoidance gap (1411) at the front for avoiding the second roller (63); the right blocking block (142) is a structure with a higher front and a lower rear, so as to form a second avoidance gap (1421) at the rear for avoiding the third roller (64).

9. The silicone pad secondary positioning device according to claim 2, characterized in that: The end surface positioning seat (3) is provided with protruding portions (31) protruding forwardly and corresponding in number to the number of the material slots (21).

10. The silicone pad secondary positioning device according to claim 1, characterized in that: An X-axis module (10) is connected below the mounting seat (1) to drive the mounting seat to move left and right. The X-axis module (10) is provided with one or more lifting assemblies (61) on one side parallel to its extension direction. The lifting assemblies (61) include: a cylinder (611) and a connecting block (612) driven by the cylinder (611) to move up and down; the first roller (60) is connected to the top of the connecting block (612).

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