Infrared sensor tube cap circumferential dotting device

Abstract

The application discloses an infrared sensor pipe cap circumferential dotting device, which comprises a mounting frame, characterized in that a dotting convex die and a dotting concave die are arranged on the mounting frame in an up-down mode, the former is a downward spring cylinder clamp, and the dotting concave die and the spring cylinder clamp are movably arranged in a longitudinal direction so as to open and close the die; a pipe cap positioning column for sleeving the pipe cap is arranged in the center of the dotting concave die and is provided with a top part; the pipe cap positioning column and the spring cylinder clamp are movably arranged in a longitudinal direction so that the pipe cap positioning column can be telescopically extended into and out of the spring cylinder clamp; a circle of dotting protrusions is formed on an equal height position on the inner periphery of the lower part of the spring cylinder clamp; the dotting concave die is provided with an inverted conical cavity, and an inner conical surface of the inverted conical cavity is matched with an outer conical surface arranged on the outer periphery of the lower part of the spring cylinder clamp; when the die is closed, the inverted conical cavity is used for extruding the lower part of the spring cylinder clamp so as to make the lower part of the spring cylinder clamp shrink inwardly, and the dotting protrusions are driven to dot limit protrusions on the circumferential wall of the pipe cap. The device can realize synchronous and efficient dotting operation on the circumferential wall of the pipe cap and ensure that the heights and depths of the limit protrusions are uniform.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of infrared sensor pipe cap circumferential dotting device. BACKGROUND

[0002] The existing infrared sensor generally adopts pipe cap 1 as metal packaging component to package internal pyroelectric detection element, and plays electromagnetic shielding function.As shown in Figure 1 The pipe cap 1 has light transmission hole 101 in the top, and the position close to the light transmission hole 101 in the inside is bonded and fixed with infrared filter 2 using epoxy glue, which is used to transmit the specific waveband range of infrared light required by the outside to the sensing chip inside the sensor, and also used to prevent visible light from interfering with the internal pyroelectric detection element. In order to improve the sensing sensitivity of the sensing chip to the transmitted infrared light, part of the enhanced products often set a condenser lens 3 between the infrared filter 2 and the sensing chip.

[0003] In order to ensure the realization of the condenser lens function in the above enhanced infrared sensor product, it is necessary to ensure a certain distance between the condenser lens 3 and the top infrared filter 2 during actual assembly, so it is necessary to add limiting structure inside the pipe cap 1 to implement accurate positioning of the condenser lens. The current industry scheme for limiting structure is to punch a circle of limiting convex points 102 with the same height at the predetermined position at a certain distance from the top inside the pipe cap 1, which is in contact with the condenser lens 3 to position the condenser lens 3. During production and assembly, the circle of limiting convex points 102 can effectively prevent the assembly distance between the condenser lens 3 and the infrared filter 2 from being too small; and in actual use of the product, the circle of limiting convex points 102 can also avoid the condenser lens 3 from falling off towards the infrared filter 2 due to the failure of the epoxy glue of the condenser lens 3, thereby shortening the distance between the two.

[0004] Obviously, the circle of limiting convex points 102 inside the pipe cap 1 should be as high as possible and the protruding length should be uniform in actual production, so as to prevent the condenser lens 3 from tilting after assembly due to uneven height and uneven protruding depth, which affects the light sensitivity and accuracy of the sensing chip.

[0005] However, the enterprises currently implement the dotting operation of the limiting convex points 102 inside the pipe cap 1 by workers using dotting tools to punch one by one along the circumference of the pipe cap 1, which not only has high labor intensity and low efficiency, but also has the following shortcomings:

[0006] Since it is difficult to effectively control the height consistency of each limiting convex point 102 on the pipe cap 1 by manual dotting, and it is also difficult to ensure the same force during dotting, it is easy to cause the position of each limiting convex point 102 on the inner side of the pipe cap 1 to be uneven and the length of the convex point protruding inward to be different. Such a circle of limiting convex points 102 obviously cannot effectively and stably position the condensing lens 3. Especially when the height difference of the circle of limiting convex points 102 is large, it will cause the condensing lens 3 to have a large inclination angle, which will cause the condensing angle to deviate, thereby affecting the light sensitivity and accuracy of the sensing chip, and causing errors in sensor detection. The convex points of different depths are also easy to cause uneven force around the condensing lens 3, and over time, the condensing lens 3 is also easy to tilt, and even fall off in severe cases.

[0007] Currently, there is no device in the industry for circumferential dotting of the above-mentioned pipe cap 1, so there is an urgent need for a dotting device that can realize circumferential synchronous and efficient dotting of the pipe cap 1 and ensure that the height and depth of the punched limiting convex points 102 are uniform. SUMMARY

[0008] The purpose of the present application is to provide an infrared sensor pipe cap circumferential dotting device that can realize circumferential synchronous and efficient dotting of the pipe cap and ensure that the height and depth of each limiting convex point punched are uniform.

[0009] The technical solution of the present application is: including a mounting frame, characterized in that the mounting frame is provided with a dotting convex die and a dotting concave die arranged above and below, the dotting convex die is a spring cylinder clamp arranged downward, and at least one of the dotting convex die and the dotting concave die is movably arranged in the longitudinal direction to open and close the die; a pipe cap positioning column is provided in the center of the dotting concave die and extends into the spring cylinder clamp, the top of the pipe cap positioning column is used for sleeving the pipe cap; at least one of the pipe cap positioning column and the spring cylinder clamp is movably arranged in the longitudinal direction, so that the pipe cap positioning column can be relatively extended into and out of the spring cylinder clamp; a circle of dotting protrusions is formed on the inner circumferential surface of the lower part of the spring cylinder clamp at the same height, and the outer circumferential surface of the lower part of the spring cylinder clamp is provided with an outer tapered surface matched with the inner tapered surface of the inverted tapered cavity of the dotting concave die; when the die is closed, the inverted tapered cavity of the dotting concave die is used to extrude the lower part of the spring cylinder clamp to make it shrink inward, and the dotting protrusions on the inner circumferential surface of the spring cylinder clamp are driven to punch the limiting convex points on the pipe cap circumferential wall at the same time.

[0010] Further, at least one of the spring cylinder clamp and the dotting concave die in the present application is connected and driven by a servo driving mechanism to be movably arranged in the longitudinal direction; similarly, at least one of the pipe cap positioning column and the spring cylinder clamp is connected and driven by a servo driving mechanism to be movably arranged in the longitudinal direction.

[0011] On the basis of the above-mentioned main technical solution concept, there are multiple refined mechanism setting schemes in the present case to realize the die closing and dotting cooperation of the spring cylinder clamp and the dotting concave die, as well as the demolding operation of the pipe cap, which are further described as follows:

[0012] The first is that the spring cylinder clamp is driven to ascend and descend by the punch servo lifting mechanism, and the dotting concave die is fixed on the mounting frame; the pipe cap positioning column is also fixed on the mounting frame. In this scheme, only the spring cylinder clamp is movable, and since only a corresponding punch servo lifting mechanism needs to be added, the implementation cost is correspondingly the lowest, and the overall structure of the device is the simplest. When the mold is closed, since the position of the dotting concave die is fixed, the spring cylinder clamp is constrained by the position of the closed mold, and can only complete the dotting work at the predetermined position of the pipe cap, and the dotting height on the pipe cap cannot be adjusted. When demolding, the spring cylinder clamp needs to be driven to ascend to take down the pipe cap.

[0013] The second is to change the pipe cap positioning column into a form that can be driven to extend and retract by a servo extension mechanism on the basis of the mechanism setting scheme of the first kind. The pipe cap positioning column is driven to extend and retract by the servo extension mechanism, so that the positioning height of the pipe cap can be adjusted up and down, and the purpose is to facilitate the adjustment of the corresponding position of the inner circumferential dotting protrusion of the spring cylinder clamp and the outer circumferential wall of the pipe cap, and to change the dotting height, which can improve the flexibility and adaptability of the device to a certain extent.

[0014] For the first and second kinds of mechanism setting schemes, the following measures can be further adopted in specific implementation: the mounting frame includes a lower die seat and an upper die seat fixed above the lower die seat by a plurality of support columns, the punch servo lifting mechanism is fixed on the upper part of the upper die seat, the output end of the punch servo lifting mechanism is connected to a punch lifting slide, the spring cylinder clamp is fixed on the punch lifting slide, and a plurality of vertical guide columns are fixed between the upper die seat and the lower die seat, which cooperate with the guide holes provided on the punch lifting slide to guide the lifting of the punch lifting slide; the dotting concave die is fixed on the lower die seat; and the pipe cap positioning column is also fixed on the lower die seat, or the lower part of the lower die seat is supported by a support, the pipe cap positioning column penetrates the lower die seat and is connected with the output end of the servo extension mechanism fixed on the bottom of the lower die seat and is driven to extend and retract by the servo extension mechanism.

[0015] Of course, it should be pointed out that the first and second kinds of mechanism setting have the following problems: when the mold is closed, since the spring cylinder clamp must be actively lowered into the dotting concave die, the lower part of the spring cylinder clamp has a tendency to move in the radial and axial directions relative to the pipe cap when it is pressed by the dotting concave die, so there is a slight deviation between the final dotting position of the dotting protrusion and the initial corresponding position of the outer circumferential wall of the pipe cap. Similarly, during the process of descending of the dotting protrusion with the spring cylinder clamp, the dotting protrusion will bear axial shear force, so if the hardness of the dotting protrusion is not enough, it will bear the risk of breaking.

[0016] To this end, we give the third refined mechanism setting scheme: the spring cylinder clamp is driven to lift by the punch servo lifting mechanism, and the dotting concave die is driven to lift by the concave die servo lifting mechanism; the cap positioning column is fixed on the mounting frame. In this scheme, the spring cylinder clamp does not need to move during mold closing, but is pressed by the upward movement of the dotting concave die to complete dotting, which avoids the axial movement trend of the spring cylinder clamp, thereby ensuring that the final dotting position of the dotting protrusion is the same as the initial corresponding position of the outer peripheral wall of the cap. Similarly, the dotting protrusion will not bear axial shear force, so the risk of breaking can be greatly reduced. During demolding, the dotting concave die needs to be driven to move downward first, and then the spring cylinder clamp needs to be driven to move upward, so as to take down the cap.

[0017] In the third refined mechanism setting scheme, since the dotting concave die can also move up and down, the spring cylinder clamp is free from the constraint of the mold closing position, and can be directly adjusted by adjusting the longitudinal position of the spring cylinder clamp to adjust the corresponding position of the inner peripheral dotting protrusion of the spring cylinder clamp and the outer peripheral wall of the cap, thereby changing the dotting height. In this way, the cap positioning column does not need to have the up-down telescopic feature.

[0018] Of course, we can still change the cap positioning column to a form that can be driven to telescope by a servo telescopic mechanism on the basis of the third refined mechanism setting scheme, thereby forming the fourth refined mechanism setting scheme, and at the same time, giving the spring cylinder clamp and the cap positioning column the up-down adjustment feature, which is obviously more convenient for the flexible movement of the two.

[0019] For the third and fourth refined mechanism setting schemes, the following measures can be further adopted in specific implementation: the mounting frame includes a lower die seat, a support supporting the lower die seat, and an upper die seat fixed above the lower die seat by a plurality of support columns, the punch servo lifting mechanism is fixed on the upper part of the upper die seat, the output end of the punch servo lifting mechanism is connected to a punch lifting slide, and the spring cylinder clamp is fixed on the punch lifting slide; the concave die servo lifting mechanism is fixed on the lower part of the lower die seat, the output end of the concave die servo lifting mechanism is connected to a concave die lifting slide, and the dotting concave die is fixed on the concave die lifting slide; and a plurality of vertical guide columns are fixed between the upper die seat and the lower die seat, which cooperate with the guide holes provided on the punch lifting slide and the concave die lifting slide to guide the lifting of the two; and the cap positioning column is fixed on the lower die seat, or the cap positioning column penetrates the lower die seat and is connected with the output end of the servo telescopic mechanism fixed on the bottom of the lower die seat and is driven to telescope by the servo telescopic mechanism.

[0020] Of course, we can also adopt the fifth detailed mechanism setting scheme: the spring cylinder clamp is fixed on the mounting frame, the dotting concave die is driven to lift by the concave die servo lifting mechanism; the cap positioning column is driven to stretch and retract by the servo stretching and retracting mechanism. In this scheme, when the mold is closed, the spring cylinder clamp cannot move, and only the dotting concave die can move upward to press the lower part of the spring cylinder clamp to complete dotting, so that the axial movement trend of the spring cylinder clamp is avoided, and the final dotting position of the dotting protrusion is ensured to be the same as the initial corresponding position of the outer peripheral wall of the cap. Similarly, the dotting protrusion will not bear axial shearing force, so that the risk of breaking can be greatly reduced.

[0021] It should be pointed out that in the fifth detailed mechanism setting scheme, since the spring cylinder clamp cannot move, the cap positioning column must be given the characteristics of stretching and retracting to facilitate the demolding of the cap after the mold is opened. When demolding, the dotting concave die needs to be driven to descend first, and then the cap positioning column needs to be driven to descend, so that the cap can be removed.

[0022] Of course, although the spring cylinder clamp is fixed in this scheme, since the cap positioning column is driven to stretch and retract by the servo stretching and retracting mechanism, the positioning height of the cap can still be adjusted up and down, so that the corresponding position of the dotting protrusion on the inner periphery of the spring cylinder clamp and the outer peripheral wall of the cap can be adjusted to change the dotting height, thereby improving the flexibility and adaptability of the device.

[0023] For the fifth detailed mechanism setting scheme, the following measures can be further adopted in specific implementation: the mounting frame includes a lower die seat, a support supporting the lower die seat, and an upper die seat fixed above the lower die seat by a plurality of support columns, and the spring cylinder clamp is fixed on the lower part of the upper die seat; the concave die servo lifting mechanism is fixed on the lower part of the lower die seat, and the output end of the concave die servo lifting mechanism is connected to a concave die lifting slide, and the dotting concave die is fixed on the concave die lifting slide; and a plurality of vertical guide columns are fixed between the upper die seat and the lower die seat, and these vertical guide columns cooperate with the guide holes provided on the concave die lifting slide to guide the lifting of the concave die lifting slide; and the cap positioning column penetrates the lower die seat and is connected to the output end of the servo stretching and retracting mechanism fixed on the bottom of the lower die seat and is driven to stretch and retract by the servo stretching and retracting mechanism.

[0024] It should be pointed out that the number of dots on the cap is determined by the number of dotting protrusions on the inner periphery of the spring cylinder clamp. The spring cylinder clamp itself is a prior art, which mainly consists of a base and a plurality of spring petals connected to the lower part of the base and uniformly distributed along the circumference. We only further form dotting protrusions on the inner side of each spring petal, and usually one dotting protrusion is formed on the inner side of each spring petal, so that the number of dots on the cap is determined by the number of spring petals constituting the spring cylinder clamp.

[0025] Furthermore, the punch servo lifting mechanism described in this invention is selected from one of a servo electric cylinder, a servo hydraulic cylinder, a servo air cylinder, and a servo linear motor, and the servo telescopic mechanism is also selected from one of a servo electric cylinder, a servo hydraulic cylinder, a servo air cylinder, and a servo linear motor. Similarly, the die servo lifting mechanism is also selected from one of a servo electric cylinder, a servo hydraulic cylinder, a servo air cylinder, and a servo linear motor.

[0026] The advantages of this invention are:

[0027] 1. This invention enables synchronous and efficient dotting operations around the pipe cap, significantly reducing the workload of workers and improving production efficiency. Furthermore, the combination of spring collets and dotting dies ensures consistent height and depth of all dotted positioning protrusions compared to manual operation, enhancing the positioning stability and reliability of the condenser lens within the pipe cap and further improving the quality of infrared sensor products.

[0028] 2. In some preferred embodiments of the present invention, the cap positioning post is designed to be extendable and retractable by a servo telescopic mechanism. By driving the cap positioning post to extend and retract via the servo telescopic mechanism, the positioning height of the cap can be adjusted vertically. This facilitates adjusting the corresponding position of the marking protrusions on the inner circumference of the spring collet with the outer circumference of the cap, thereby changing the marking height. This, to a certain extent, improves the flexibility and adaptability of the device.

[0029] 3. In some preferred embodiments of the present invention, the dotting die is configured to be driven to rise and fall by a die servo lifting mechanism to achieve the opening and closing die engagement with the spring collet. In this structure, the spring collet does not need to move; instead, the dotting die moves upward to press the lower part of the spring collet to complete the dotting. This avoids any axial movement tendency of the spring collet, thereby ensuring that the final dotting position of the dotting protrusion is the same as the initial corresponding position of the outer peripheral wall of the cap. Similarly, this structure also ensures that the dotting protrusion on the inner circumference of the spring collet will not be subjected to axial shear force during dotting, thereby greatly reducing the risk of breakage. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0031] Figure 1 This is a schematic diagram of the internal assembly structure of an existing infrared sensor cap.

[0032] Figure 2 This is a schematic diagram of the structure of the first specific embodiment of the present invention;

[0033] Figure 3 for Figure 2 A three-dimensional structural diagram of the spring collet;

[0034] Figure 4 for Figure 3 Bottom axial view;

[0035] Figure 5 This is a schematic diagram of the structure of the second specific embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the third specific embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the fourth specific embodiment of the present invention.

[0038] The components are: 1. Pipe cap; 101. Light-transmitting hole; 102. Limiting protrusion; 2. Infrared filter; 3. Condensing lens; 4. Dotting die; 401. Inverted conical die cavity; 5. Spring collet; 501. Dotting protrusion; 6. Pipe cap positioning post; 7. Punch servo lifting mechanism; 8. Servo telescopic mechanism; 9. Die servo lifting mechanism; 10. Lower die base; 11. Support column; 12. Upper die base; 13. Punch lifting slide; 14. Vertical guide column; 15. Bracket; 16. Die lifting slide. Detailed Implementation

[0039] The following is combined Figures 2-7 The following is a detailed description of a specific embodiment of the circumferential dotting device for an infrared sensor cap provided by the present invention. This dotting device is mainly used for applications such as... Figure 1 The existing infrared sensor shown has a ring of equal-height limiting protrusions 102 punched on the inner circumference of the cap 1. The ring of limiting protrusions 102 is used to abut against the condenser lens 3 inside the cap 1 to limit the condenser lens 3, thereby ensuring that there is a certain gap between the condenser lens 3 and the top infrared filter 2.

[0040] Example 1: First, combine Figures 2-4 The first specific embodiment of the present invention is described below: It has a mounting frame, on which are arranged vertically a dotting punch and a dotting die 4. The dotting punch is a downward-facing spring collet 5, which is driven to rise and fall by a punch servo lifting mechanism 7. The dotting die 4 is fixed on the mounting frame. A tube cap positioning post 6 is provided through the center of the dotting die 4, and its top is used to fit a tube cap 1. The tube cap positioning post 6 is also fixed on the mounting frame. When the spring collet 5 is driven to move up and down by the punch servo lifting mechanism 7, the tube cap positioning post 6 can extend and retract relative to the spring collet 5. A ring of dotting protrusions 501 is formed at the same height on the lower inner circumference of the spring collet 5, which is opposite to the outer peripheral wall of the tube cap 1 positioned on the tube cap positioning post 6. The dotting die 4 is provided with an inverted conical cavity 401, and the lower outer circumference of the spring collet 5 is provided with an outer conical surface that mates with the inner conical surface of the inverted conical cavity 401. When the mold is closed, the inverted conical cavity 401 of the dotting die 4 is used to squeeze the lower part of the spring collet 5 to make it shrink inward, and drive the dotting protrusion 501 on the inner circumference of the spring collet 5 to push against the peripheral wall of the tube cap 1 to punch out the limiting protrusion 102.

[0041] In combination Figures 3-4 As shown in the drawings, the spring collet 5 in this embodiment is a conventional six-petal spring collet, which is composed of a base and six spring petals evenly distributed along the circumference of the lower part of the base. A dotting protrusion 501 is formed on the inner side of each spring petal, so that a total of six limiting protrusions 102 of the same height can be formed on the pipe cap 1.

[0042] In combination Figure 2 As shown in the drawings, the mounting frame in this embodiment is composed of a lower die base 10 and an upper die base 12 fixed above the lower die base 10 by four support columns 11 distributed in a square. The protrusion servo lifting mechanism 7 is a conventional servo cylinder fixed on the upper part of the upper die base 12. The output end of the protrusion servo lifting mechanism 7 is connected to a protrusion lifting slide 13, and the spring collet 5 is fixed on the protrusion lifting slide 13. Four vertical guide columns 14 distributed in a square are fixed between the upper die base 12 and the lower die base 10. These vertical guide columns 14 cooperate with the guide holes provided on the protrusion lifting slide 13 to guide the lifting of the protrusion lifting slide 13. The dotting concave die 4 is fixed on the lower die base 10, and the pipe cap positioning column 6 is also fixed on the lower die base 10.

[0043] When the mold is closed in this embodiment, the dotting concave die 3 is fixed in position, and the spring collet 5 is constrained by the closing position, so that the dotting operation can only be completed at the predetermined position of the pipe cap 1, and the dotting height on the pipe cap 1 cannot be adjusted. When the mold is opened, the spring collet 5 needs to be driven to move upward to remove the pipe cap 1.

[0044] In this embodiment, the spring collet 5 must be actively lowered into the dotting concave die 4, and when the lower part is pressed by the dotting concave die 4, the dotting protrusion 501 on the inner circumference has a tendency to move in both the radial and axial directions relative to the pipe cap 1. Therefore, the final dotting position of the dotting protrusion 501 is slightly offset from the initial corresponding position of the outer peripheral wall of the pipe cap 1. Similarly, during the process of lowering the spring collet 5, the dotting protrusion 501 will bear axial shear force, so if the hardness of the dotting protrusion 501 is not enough, it will be at risk of breaking.

[0045] Embodiment 2: In combination Figure 5The diagram shows a second specific embodiment of the present invention. Based on embodiment 1, the lower mold base 10 is supported by a bracket 15 to elevate it. The cap positioning post 6 penetrates the lower mold base 10 and connects to the output end of a servo telescopic mechanism 8 fixed to the bottom of the lower mold base 10, thereby driving its extension and retraction. This servo telescopic mechanism 8 uses an existing servo electric cylinder. The rest of this embodiment is the same as embodiment 1; please refer to the description of embodiment 1. Changing the cap positioning post 6 to a form that can be driven to extend and retract by the servo telescopic mechanism 8 allows the positioning height of the cap 1 to be adjusted vertically. This facilitates adjusting the corresponding position of the inner circumferential marking protrusion 501 of the spring collet 5 and the outer circumferential wall of the cap 1, thereby changing the marking height. This improves the flexibility and adaptability of the device to a certain extent.

[0046] Example 3: As Figure 6 As shown, this is the third specific embodiment of the present invention. Based on embodiment 1, the lower mold base 10 is supported by a bracket 15 to elevate it. Simultaneously, the dotting die 4 is designed to be driven to rise and fall by a die servo lifting mechanism 9. (Specifically combined with...) Figure 6 As shown, the die servo lifting mechanism 9 also uses an existing servo electric cylinder, which is fixed to the lower part of the lower die base 10. The output end of the die servo lifting mechanism 9 is connected to a die lifting slide 16, and the dotting die 4 is fixed on the die lifting slide 16. The die lifting slide 16 also has guide holes that cooperate with four vertical guide pillars 14, so that, like the punch lifting slide 13, it can be guided and lifted by the four vertical guide pillars 14. The rest of this embodiment is the same as in Embodiment 1; please refer to the description of Embodiment 1.

[0047] In this design, the spring collet 5 does not need to move during mold closing. Instead, the marking die 4 moves upward to press the lower part of the spring collet 5 to complete the marking. This avoids any axial movement tendency of the spring collet 5, thus ensuring that the final marking position of the marking protrusion 501 on the inner circumference of the spring collet 5 is the same as the initial corresponding position on the outer circumference of the cap 1. Similarly, the marking protrusion 501 will not be subjected to axial shear force, thus greatly reducing the risk of breakage. During demolding, the marking die 4 needs to be driven downward first, and then the spring collet 5 needs to be driven upward to remove the cap 1.

[0048] Since the dotting die 4 in this embodiment can also move up and down, the spring collet 5 is not constrained by the mold closing position and becomes free. Therefore, in this embodiment, the corresponding position of the inner circumferential dotting protrusion 501 and the outer circumferential wall of the cap 1 can be adjusted directly by adjusting the longitudinal position of the spring collet 5, thereby changing the dotting height. This eliminates the need to give the cap positioning post 6 vertical telescopic characteristics.

[0049] Example 4: Figure 7As shown, it is the fourth specific embodiment of the present application, the scheme is as follows: it has a mounting frame, the mounting frame is provided with a punch and a die 4 arranged up and down, the punch is a spring cylinder clamp 5 arranged downward, it is fixed on the mounting frame, the die 4 is driven to lift by a die servo lifting mechanism 9; a tube cap positioning column 6 is provided through the center of the die 4, the top of the tube cap positioning column 6 is used to sleeve the tube cap 1, the tube cap positioning column 6 is driven to stretch and retract by a servo telescopic mechanism 8 so as to be telescopic into and out of the spring cylinder clamp 5. A circle of dotting protrusions 501 is formed on the inner circumferential upper level position of the lower part of the spring cylinder clamp 5, and the outer circumferential wall of the tube cap 1 positioned on the tube cap positioning column 6 extending into the dotting protrusions 501 is opposite. The die 4 is provided with an inverted conical cavity 401, and the outer conical surface of the lower part of the spring cylinder clamp 5 is arranged to cooperate with the inner conical surface of the inverted conical cavity 401. When the mold is closed, the inverted conical cavity 401 of the die 4 is used to extrude the lower part of the spring cylinder clamp 5 to make it shrink inward, and drive the dotting protrusions 501 on the inner circumferential of the spring cylinder clamp 5 to punch the limiting protrusions 102 on the tube cap 1 wall at the same time.

[0050] The spring cylinder clamp 5 in the embodiment is also a current six-petal spring cylinder clamp, which is specifically described in the embodiment 1, and can be referred to Figure 3 and Figure 4 As shown.

[0051] In combination with Figure 7 As shown, the mounting frame in the embodiment is composed of a lower die seat 10, an upper die seat 12 fixed on the lower die seat 10 through four support columns 11 distributed in four directions, and a support 15 supporting and raising the lower die seat 10. The spring cylinder clamp 5 is fixed on the lower part of the upper die seat 12; the die servo lifting mechanism 9 adopts a current servo electric cylinder, which is fixed on the lower part of the lower die seat 10, the output end of the die servo lifting mechanism 9 is connected with a die lifting sliding table 16, and the die 4 is fixed on the die lifting sliding table 16; and four vertical guide columns 14 distributed in four directions are fixed between the upper die seat 12 and the lower die seat 10, these vertical guide columns 14 cooperate with guide holes arranged on the die lifting sliding table 16 to guide the lifting of the die lifting sliding table 16; and the tube cap positioning column 6 penetrates the lower die seat 10 and is connected with the output end of the servo telescopic mechanism 8 fixed on the bottom of the lower die seat 10, and is driven to stretch and retract by the servo telescopic mechanism 8, the servo telescopic mechanism 8 also adopts a current servo electric cylinder.

[0052] When the mold is closed, the spring cylinder clamp 5 does not act, but the die 4 moves upward to extrude the lower part of the spring cylinder clamp 5 to complete the dotting, which also avoids the axial movement trend of the spring cylinder clamp 5, so as to ensure that the final dotting position of the dotting protrusions 501 on the inner circumferential of the spring cylinder clamp 5 is the same as the initial corresponding position of the outer circumferential wall of the tube cap 1. Similarly, the dotting protrusions 501 will not bear axial shearing force, so the risk of breaking can be greatly reduced.

[0053] In this embodiment, the spring cylinder clamp 5 cannot move, so the tube cap positioning column 6 must be given the telescopic property to facilitate the demolding of the tube cap 1 after the mold is opened. When demolding, the dotting concave die 4 needs to be driven downward first, and then the tube cap positioning column 6 needs to be driven downward, so that the tube cap 1 can be removed.

[0054] Of course, although the spring cylinder clamp 5 is fixed in this scheme, since the tube cap positioning column 6 is driven to telescope by the servo telescopic mechanism 8, the positioning height of the tube cap 1 can still be adjusted up and down, so as to facilitate the adjustment of the corresponding position of the inner peripheral dotting protrusion 501 of the spring cylinder clamp 5 and the outer peripheral wall of the tube cap 1 to change the dotting height, thereby improving the flexibility and adaptability of the device.

[0055] Of course, the above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any modification made according to the spirit and essence of the main technical scheme of the present application should be covered within the protection scope of the present application.

Claims

1. An infrared sensor tube cap circumferential dotting device comprising a mounting frame, characterized in that The installation frame is provided with a punch and a die (4) arranged in an up-down manner, the punch is a spring cylinder clamp (5) arranged downward, and at least one of the punch and the die (4) is arranged to be movable in the longitudinal direction so as to open and close the mold; the die (4) is provided with a pipe cap positioning column (6) penetrating through the center and extending into the spring cylinder clamp (5), the top of the pipe cap positioning column (6) is used for sleeving a pipe cap (1); the pipe cap positioning column (6) and at least one of the spring cylinder clamps (5) are arranged to be movable in the longitudinal direction, so that the pipe cap positioning column (6) can be extended into and out of the spring cylinder clamp (5); a circle of punch protrusions (501) is formed on the inner circumferential surface of the lower part of the spring cylinder clamp (5) at an equal height, and the punch protrusions (501) are opposite to the outer circumferential wall of the pipe cap (1); the die (4) is provided with an inverted conical cavity (401), and the outer conical surface of the lower part of the spring cylinder clamp (5) is matched with the inner conical surface of the inverted conical cavity (401); when the mold is closed, the inverted conical cavity (401) of the die (4) is used for extruding the lower part of the spring cylinder clamp (5) to make it shrink inward, and the punch protrusions (501) on the inner circumferential surface of the spring cylinder clamp (5) are driven to punch the limiting protrusions (102) on the circumferential wall of the pipe cap (1) at the same time; at least one of the spring cylinder clamps (5) and the die (4) is connected and driven by a servo driving mechanism so as to be arranged to be movable in the longitudinal direction; similarly, at least one of the pipe cap positioning column (6) and the spring cylinder clamps (5) is connected and driven by a servo driving mechanism so as to be arranged to be movable in the longitudinal direction, the spring cylinder clamps (5) are driven to rise and fall by a punch servo lifting mechanism (7), and the die (4) is fixed on the installation frame; the pipe cap positioning column (6) is also fixed on the installation frame, or the pipe cap positioning column (6) is driven to extend and retract by a servo extension and retraction mechanism (8), the installation frame comprises a lower mold base (10) and an upper mold base (12) fixed above the lower mold base (10) through a plurality of support columns (11), the punch servo lifting mechanism (7) is fixed on the upper part of the upper mold base (12), the output end of the punch servo lifting mechanism (7) is connected with a punch lifting sliding table (13), the spring cylinder clamps (5) are fixed on the punch lifting sliding table (13), a plurality of vertical guide columns (14) are fixed between the upper mold base (12) and the lower mold base (10), and the vertical guide columns (14) are matched with guide holes arranged on the punch lifting sliding table (13) to guide the punch lifting sliding table (13) to rise and fall; the die (4) is fixed on the lower mold base (10); and the pipe cap positioning column (6) is also fixed on the lower mold base (10), or the lower part of the lower mold base (10) is supported by a support (15), the pipe cap positioning column (6) penetrates through the lower mold base (10) and is connected with the output end of the servo extension and retraction mechanism (8) fixed on the bottom of the lower mold base (10) and is driven to extend and retract by the servo extension and retraction mechanism (8).

2. The apparatus according to claim 1, wherein The spring cylinder clamps (5) are driven to rise and fall by a punch servo lifting mechanism (7), and the die (4) is driven to rise and fall by a die servo lifting mechanism (9); the pipe cap positioning column (6) is fixed on the installation frame, or the pipe cap positioning column (6) is driven to extend and retract by a servo extension and retraction mechanism (8).

3. The apparatus according to claim 2, wherein The mounting frame comprises a lower die seat (10), a support (15) supporting the lower die seat (10), and an upper die seat (12) fixed above the lower die seat (10) through a plurality of support columns (11), the male die servo lifting mechanism (7) is fixed on the upper portion of the upper die seat (12), the output end of the male die servo lifting mechanism (7) is connected with a male die lifting slide (13), the spring cylinder clamp (5) is fixed on the male die lifting slide (13); the female die servo lifting mechanism (9) is fixed on the lower portion of the lower die seat (10), the output end of the female die servo lifting mechanism (9) is connected with a female die lifting slide (16), the dotting female die (4) is fixed on the female die lifting slide (16); and a plurality of vertical guide columns (14) are fixed between the upper die seat (12) and the lower die seat (10), the vertical guide columns (14) are matched with guide holes arranged on the male die lifting slide (13) and the female die lifting slide (16) to guide the lifting of the male die lifting slide (13) and the female die lifting slide (16); and the cap positioning column (6) is fixed on the lower die seat (10), or the cap positioning column (6) penetrates the lower die seat (10) and is connected with the output end of the servo telescopic mechanism (8) fixed on the bottom of the lower die seat (10) and is driven to telescope by the servo telescopic mechanism (8).

4. The apparatus according to claim 1, wherein The spring cylinder clamp (5) is fixed on the mounting frame, and the dotting female die (4) is driven to lift by the female die servo lifting mechanism (9); the cap positioning column (6) is driven to telescope by the servo telescopic mechanism (8).

5. The apparatus according to claim 4, wherein The mounting frame comprises a lower die seat (10), a support (15) supporting the lower die seat (10), and an upper die seat (12) fixed above the lower die seat (10) through a plurality of support columns (11), the spring cylinder clamp (5) is fixed on the lower portion of the upper die seat (12); the female die servo lifting mechanism (9) is fixed on the lower portion of the lower die seat (10), the output end of the female die servo lifting mechanism (9) is connected with a female die lifting slide (16), the dotting female die (4) is fixed on the female die lifting slide (16); and a plurality of vertical guide columns (14) are fixed between the upper die seat (12) and the lower die seat (10), the vertical guide columns (14) are matched with guide holes arranged on the female die lifting slide (16) to guide the lifting of the female die lifting slide (16); and the cap positioning column (6) penetrates the lower die seat (10) and is connected with the output end of the servo telescopic mechanism (8) fixed on the bottom of the lower die seat (10) and is driven to telescope by the servo telescopic mechanism (8).

6. The apparatus according to claim 1 or 2, wherein The male die servo lifting mechanism (7) is selected from one of a servo electric cylinder, a servo oil cylinder, a servo air cylinder and a servo linear motor, and the servo telescopic mechanism (8) is also selected from one of a servo electric cylinder, a servo oil cylinder, a servo air cylinder and a servo linear motor.

7. The apparatus according to claim 2 or 4, wherein The female die servo lifting mechanism (9) is also selected from one of a servo electric cylinder, a servo oil cylinder, a servo air cylinder and a servo linear motor.

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