Temperature controller ceramic base assembling device

Abstract

The utility model relates to a temperature controller ceramic base assembling device which comprises a base conveying mechanism, a base pushing mechanism, a locking conveying mechanism and a contact piece material belt conveying mechanism, the locking conveying mechanism is provided with a conveying groove, the contact piece material belt conveying mechanism is used for conveying a contact piece material belt, the contact piece material belt conveying mechanism is arranged at the input end of the conveying groove, and the base pushing mechanism is arranged on the conveying groove. The output end of the contact piece material belt conveying mechanism is connected and communicated with the input end of the conveying groove, the base conveying mechanism is arranged behind the contact piece material belt conveying mechanism, and the base pushing mechanism is arranged at the output end of the base conveying mechanism. According to the utility model, the base and the contact strip are adopted for assembling, the static contacts are ensured not to be stacked and fall in the conveying process, the product assembling quality is improved, the contact strip can be directly moved into the conveying groove, the structure is simpler, the application of equipment can be reduced, the input cost of production equipment can be reduced, the working procedures can be reduced, and the production efficiency is improved. The production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermostat parts welding, in particular to a thermostat ceramic base assembly device. Background Art

[0002] At present, when assembling the base and the static contact of the temperature controller, it is first necessary to remove each static contact from the contact strip one by one, and then fit the fixed end of the static contact to the positioning groove of the base, and then lock them together with rivets. Most of the assembly process is done manually, which is not only inefficient, but also difficult to unify product quality. To this end, there is a base and static contact assembly equipment that can realize automatic assembly. For example, Chinese patent literature discloses a technical solution with a patent application number of 201922467451.7 and the name of "Automatic Assembly Device for Adjustable Temperature Control Switch". The assembly device of the base and the static contact of this scheme is mainly composed of a base feeding mechanism, a base pushing assembly, a static contact feeding assembly, a static contact pushing assembly, a screw installation assembly, and a positioning and conveying mechanism, wherein the static contact pushing assembly includes a horizontal push cylinder, a vertical push cylinder, and an upward push cylinder. When in use, the output end of the base feeding mechanism outputs the base, and then the base is pushed to the positioning conveying mechanism through the base pushing assembly, and then the static contact piece is output from the output end of the static contact piece feeding assembly, and then the static contact piece is pushed to the positioning conveying mechanism through each pushing cylinder of the static contact piece pushing assembly, so that the static contact piece and the base are clamped together, and finally the static contact piece and the base are locked together through the screw installation assembly to achieve the purpose of automatic assembly. However, in the actual production application process, it still has the following shortcomings:

[0003] First, each static contact piece is cut and separated from the contact piece material strip before being transported, and then transported through the static contact piece loading assembly. Since the static contact pieces are very small and thin, they are very easy to be stacked together during transportation, or very easy to fall out during the pushing process, resulting in the situation that multiple static contact pieces are installed on some bases or cannot be installed together with the static contact pieces, and the quality of the assembled products is still poor and the reliability is low.

[0004] Secondly, since each static contact piece is separated individually and then assembled with the base, in order to enable the static contact piece to be transferred to the positioning and conveying mechanism and assembled with the base sleeve, it is necessary to set up pushing cylinders in multiple directions such as horizontal pushing cylinders, vertical pushing cylinders and upward pushing cylinders. As a result, the entire device uses a large number of pushing cylinders, which not only makes the structure complicated, but also makes the CNC programming complicated.

[0005] Therefore, in view of the aforementioned deficiencies in the existing assembly device of the base and the stationary contact piece, the applicant believes that it is very necessary to redevelop and design the assembly device so that it can better meet the needs of production applications. Utility Model Content

[0006] The purpose of the utility model is to solve the above-mentioned problems and shortcomings, and to provide a temperature controller ceramic base assembly device, which adopts a base and a contact sheet material strip for assembly, to ensure that the static contacts will not be stacked and dropped during the transmission process, thereby improving the product assembly quality, and the contact sheet material strip can be directly moved to the conveying trough, the structure is simpler, and the application of equipment can be reduced, the investment cost of production equipment can be reduced, and the work flow process can be reduced to improve production efficiency.

[0007] The technical solution of the utility model is implemented as follows: a temperature controller ceramic base assembly device, including a base conveying mechanism, a base pushing mechanism, and a locking conveying mechanism. The locking conveying mechanism is provided with a conveying trough, and is characterized in that it also includes a contact sheet material conveying mechanism, the contact sheet material conveying mechanism is used to convey the contact sheet material, the contact sheet material conveying mechanism is arranged at the input end of the conveying trough, and the output end of the contact sheet material conveying mechanism is connected and communicated with the input end of the conveying trough, the base conveying mechanism is arranged behind the contact sheet material conveying mechanism, the base pushing mechanism is arranged at the output end of the base conveying mechanism, the base pushing mechanism is used to push the base to the output end of the contact sheet material conveying mechanism, so that the base is connected with the contact sheet material sleeve, and the base is driven to move into the conveying trough together with the conveying movement of the contact sheet material.

[0008] Preferably, an anti-collision block is provided at the output end of the contact sheet material conveying mechanism.

[0009] Preferably, an output end of the contact sheet material conveying mechanism is provided with an insertion slot, and the anti-collision block is inserted in the insertion slot.

[0010] Preferably, the base conveying mechanism comprises a base conveying platform with a base feeding guide groove, and a base conveying member arranged on the base conveying platform, and the base conveying member is used to drive the base to move along the base feeding guide groove.

[0011] Preferably, the contact sheet material belt conveying mechanism includes a contact sheet material belt conveying platform and a material belt conveying roller. The contact sheet material belt conveying platform is provided with a material belt feeding guide groove. The material belt conveying roller can be rotatably arranged in the material belt feeding guide groove. The output end of the material belt feeding guide groove is connected to the input end of the conveying groove.

[0012] Preferably, the base pushing mechanism includes a longitudinal guide rail, a pushing cylinder, and a pushing block. The pushing block is provided with a base aisle. The pushing block is fixed on the driving end of the pushing cylinder so that the pushing block can move longitudinally back and forth on the longitudinal guide rail under the drive of the pushing cylinder, and when the driving end of the pushing cylinder moves backward, the base aisle is connected with the output end of the base conveying mechanism.

[0013] Preferably, the locking and conveying mechanism comprises a conveying platform, and a rivet transmission assembly, a nail penetration assembly, and a nail locking assembly arranged on the conveying platform, and the conveying trough is arranged on the conveying platform.

[0014] Preferably, the rivet conveying assembly includes a vibrating plate with a discharge end and a rivet feeding rod with a rivet feeding trough, the input end of the rivet feeding trough is connected to the discharge end of the vibrating plate, and a rivet passage connecting the rivet feeding trough and the conveying trough is provided on the conveying platform.

[0015] Preferably, the piercing assembly includes a positioning drive component and a rivet magnetic pull-down component which are arranged side by side above and below the conveying groove. The driving end of the positioning drive component is provided with a rivet positioning groove, so that under the drive of the positioning drive component, the rivet positioning groove is connected and communicated with the output end of the rivet conveying assembly. The rivet magnetic pull-down component is used to magnetically attract the rivets in the rivet positioning groove and drive the rivets to move downward so that the rivets are passed through the base and the contact sheet strip.

[0016] Preferably, the locking nail assembly includes a rivet limiting component and a top-pressing riveting component, and the rivet limiting component and the top-pressing riveting component are arranged side by side above and below the conveying trough, the rivet limiting component is used to limit the position of the upper end of the rivet, and the top-pressing riveting component is used to press the lower end of the rivet to rivet.

[0017] Beneficial effects of the utility model:

[0018] (1) Since the utility model adopts a contact sheet material conveying mechanism, the contact sheet material conveyed by the utility model does not cut and separate the static contact sheets. Therefore, during the conveying process, the static contact sheets will not be stacked together or fall out, so that each static contact sheet can be assembled with the base, which greatly improves the product assembly quality of the base and the static contact sheets and has a very high reliability in use.

[0019] (2) Since the utility model adopts a method of assembling and connecting the contact sheet material belt and the base, and the output end of the contact sheet material belt conveying mechanism is connected and communicated with the input end of the conveying trough, when the contact sheet material belt is conveyed to the conveying trough, the contact sheet material belt can be directly moved into the conveying trough, and there is no need to set a static contact sheet pushing cylinder between the contact sheet material belt conveying mechanism and the locking conveying mechanism. This can greatly reduce the use of pushing cylinders, make the structure simpler, and also make CNC programming simpler.

[0020] (3) Through the coordinated design of the base pushing mechanism and the contact sheet material belt conveying mechanism, it is also possible to avoid setting up conveying components in the conveying trough. The conveying components of the contact sheet material belt conveying mechanism can be directly used to move the base and the contact sheet material belt together with the card sleeve in the conveying trough. This helps to reduce the application of equipment, reduce the investment cost of production equipment, and also reduce the work process steps and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0022] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above.

[0023] Figure 3 It is a schematic diagram of the disassembled structure of the base transmission mechanism, the base pushing mechanism, the conveying platform and the contact sheet material belt transmission mechanism in the utility model.

[0024] Figure 4 It is a schematic diagram of the disassembled structure of the contact sheet material belt conveying mechanism in the utility model.

[0025] Figure 5 It is a schematic diagram of the disassembled structure of the base pushing mechanism in the utility model.

[0026] Figure 6 It is a schematic diagram of the disassembled structure of the nail-piercing assembly and the conveying platform in the utility model.

[0027] Figure 7 It is a structural schematic diagram of a partial cross-section of the locking nail assembly and the conveying platform in the utility model. DETAILED DESCRIPTION

[0028] like Figure 1 and Figure 3 As shown, a temperature controller ceramic base assembly device described in the utility model includes a base conveying mechanism 1, a base pushing mechanism 2, and a locking conveying mechanism. The locking conveying mechanism is provided with a conveying groove 31. In order to achieve the purpose proposed by the utility model, the utility model also includes a contact sheet material conveying mechanism 4, and the contact sheet material conveying mechanism 4 is used to convey the contact sheet material. The contact sheet material conveying mechanism 4 is arranged at the input end of the conveying groove 31, and the output end of the contact sheet material conveying mechanism 4 is connected and communicated with the input end of the conveying groove 31. The base conveying mechanism 1 is arranged behind the contact sheet material conveying mechanism 4, and the base pushing mechanism 2 is arranged at the output end of the base conveying mechanism 1. The base pushing mechanism 2 is used to push the base to the output end of the contact sheet material conveying mechanism 4, so that the base is connected with the contact sheet material sleeve, and the base is driven to move into the conveying groove 31 through the conveying movement of the contact sheet material. The utility model adopts a base and a contact sheet material belt for assembly, which ensures that the static contact sheets will not be stacked or dropped during the transmission process, thereby improving the product assembly quality. Moreover, the contact sheet material belt can be directly moved into the conveying trough 31, which has a simpler structure, can reduce the application of equipment, reduce the investment cost of production equipment, and can also reduce the work flow process and improve production efficiency.

[0029] like Figure 3As shown, the output end of the contact strip conveying mechanism 4 is provided with an anti-collision block 41. When the base pushing mechanism 2 pushes the base to the output end of the contact strip conveying mechanism 4 so that the base and the contact strip clamp together, the base is likely to collide with the contact strip and then collide with the output end of the contact strip conveying mechanism 4. The anti-collision block 41 can prevent the output end of the contact strip conveying mechanism 4 and the contact strip from being damaged by the collision, thus ensuring product quality and preventing the contact strip conveying mechanism 4 from being affected. In actual application, the anti-collision block 41 is a rubber block, which has a very good buffering effect, thereby playing a very good anti-collision role.

[0030] In order to make it easier to install the anti-collision block 41 on the output end of the contact sheet material conveying mechanism 4, as shown in FIG. Figure 4 As shown, the output end of the contact sheet material belt conveying mechanism 4 is provided with an insertion slot 42, and the anti-collision block 41 is inserted into the insertion slot 42. In this way, the installation and removal of the anti-collision block 41 can be very easy.

[0031] In order to make the base transmission mechanism 1 have the advantages of simple structure and easy implementation, such as Figure 3 As shown, the base conveying mechanism 1 includes a base conveying platform 11 with a base feeding guide groove 12, and a base conveying member arranged on the base conveying platform 11, and the base conveying member is used to drive the base to move along the base feeding guide groove 12. In actual application, the base conveying member can be a vibration plate, a push cylinder or a conveying roller, which can drive the base to move in the base feeding guide groove 12, thereby achieving the purpose of conveying the base.

[0032] In order to make the contact sheet material belt conveying mechanism 4 have the advantages of simple structure and easy implementation, such as Figure 4 As shown, the contact sheet material belt conveying mechanism 4 includes a contact sheet material belt conveying platform 43 and a material belt conveying roller 44. The contact sheet material belt conveying platform 43 is provided with a material belt feeding guide groove 45. The material belt conveying roller 44 can be rotatably arranged in the material belt feeding guide groove 45. The output end of the material belt feeding guide groove 45 is connected and communicated with the input end of the conveying groove 31. During transmission, the contact sheet material belt can be driven to move in the material belt feeding guide groove 45 through the rolling contact between the material belt conveying roller 44 and the contact sheet material belt, thereby achieving the purpose of conveying the contact sheet material belt. In actual application, in order to prevent the contact sheet material belt from running out of the material belt feeding guide groove 45, as shown in Figure 4 As shown, the material belt feeding guide groove 45 is also provided with a limit baffle 46, and the limit baffle 46 covers the upper notch of the material belt feeding guide groove 45. This can limit the contact sheet material belt, prevent the contact sheet material belt from running out of the material belt feeding guide groove 45, and prevent the transmission from being stuck. In actual application, the material belt conveying roller 44 is driven by a motor to rotate.

[0033] In order to make the base pushing mechanism 2 have the advantages of simple structure and easy implementation, as Figure 5 As shown, the base pushing mechanism 2 includes a longitudinal guide rail 21, a pushing cylinder 22, and a pushing block 23. The pushing block 23 is provided with a base passage 231. The pushing block 23 is fixed on the driving end of the pushing cylinder 22, so that the pushing block 23 can move longitudinally back and forth on the longitudinal guide rail 21 under the drive of the pushing cylinder 22, and when the driving end of the pushing cylinder 22 moves backward, the base passage 231 is connected with the output end of the base conveying mechanism 1. The longitudinal guide rail 21 can play a very good longitudinal guiding role for the pushing block 23 to prevent the position of the pushing block 23 from deviating. When in use, when the pushing cylinder 22 drives the pushing block 23 to move backward, its base passage 231 will be connected with the output end of the base conveying mechanism 1, so that the base can be moved into the base passage 231. Then, when the pushing cylinder 22 drives the pushing block 23 to move forward, the base can be pushed to the output end of the contact sheet material conveying mechanism 4.

[0034] In order to further improve the structure of the locking conveying mechanism, make it simple, scientific and reasonable, and easy to implement, such as Figure 2 As shown, the locking and conveying mechanism includes a conveying platform 3 , and a rivet transmission assembly 5 , a nail penetration assembly 6 , and a nail locking assembly 7 arranged on the conveying platform 3 , and the conveying trough 31 is arranged on the conveying platform 3 .

[0035] In order to make the rivet transmission assembly 5 have the advantages of simple structure and easy implementation, as Figure 5 and Figure 6 As shown, the rivet conveying assembly 5 includes a vibration plate 51 with a discharge end, a rivet feeding rod 52 with a rivet feeding trough, the input end of the rivet feeding trough is connected to the discharge end of the vibration plate 51, and the conveying platform 3 is provided with a rivet passage 32 that connects the rivet feeding trough with the conveying trough 31. When conveying rivets, each rivet enters the discharge end in turn through the vibration of the vibration plate 51, and then enters the rivet feeding trough of the rivet feeding rod 52 from its discharge end to realize the conveyance of each rivet. Through the provision of the rivet passage 32, the rivets at the output end of the rivet feeding trough can be moved to the conveying trough 31.

[0036] In order to make the nail assembly 6 have the advantages of simple structure and easy implementation, as Figure 6As shown, the piercing assembly 6 includes a positioning driving component 61 and a rivet magnetic pull-down component 62 which are arranged side by side above and below the conveying groove 31. The driving end of the positioning driving component 61 is provided with a rivet positioning groove 611, so that the rivet positioning groove 611 is connected and communicated with the output end of the rivet conveying assembly 5 under the drive of the positioning driving component 61. The rivet magnetic pull-down component 62 is used to magnetically attract the rivet in the rivet positioning groove 611 and drive the rivet to move downward, so that the rivet is inserted on the base and the contact sheet material strip. Specifically, the positioning driving component 61 includes a positioning driving cylinder 612 and a positioning block 613 arranged on the driving end of the positioning driving cylinder 612, and the rivet positioning groove 611 is opened on the positioning block 613. The rivet magnetic pull-down component 62 includes a pull-down driving cylinder 621 and a magnet rod 622 arranged vertically on the driving end of the pull-down driving cylinder 621. During production and manufacturing, rivet holes are provided on the base and the contact sheet material strip, respectively. During assembly and application, first, under the drive of the positioning drive cylinder 612, the positioning block 613 is moved toward the rivet passage 32, and the rivet positioning groove 611 is connected and communicated with the rivet passage 32, so that the rivet can be moved to the rivet positioning groove 611 for positioning, and the rivet, the rivet positioning groove 611 and the rivet hole are respectively located on the same central axis, then, under the drive of the pull-down drive cylinder 621, the magnet rod 622 is respectively passed through the rivet holes of the base and the contact sheet material strip, so that the magnet rod 622 magnetically attracts the rivet, then, the positioning block 613 is moved back under the drive of the positioning drive cylinder 612 to avoid affecting the downward movement of the rivet, and finally, under the pull-down drive of the pull-down drive cylinder 621, the magnet rod 622 drives the rivet to move downward, and the rivet is inserted into the rivet holes of the base and the contact sheet material strip to complete the piercing. In addition, when the magnet rod 622 moves upward, in order to prevent the rivet from being bumped and deflected or shifted upward, as shown in FIG. Figure 6 As shown, a limiting plate 614 for limiting the rivets is also provided on the top surface of the conveying platform 3.

[0037] In order to make the locking nail assembly 7 have the advantages of simple structure and easy implementation, as Figure 7As shown, the locking nail assembly 7 includes a rivet limiting component 71 and a top-pressing riveting component 72. The rivet limiting component 71 and the top-pressing riveting component 72 are arranged side by side above and below the conveying trough 31. The rivet limiting component 71 is used to limit the position of the upper end of the rivet, and the top-pressing riveting component 72 is used to press the lower end of the rivet to rivet. Specifically, the rivet limiting component 71 includes an upper fixed seat 711, and a vertical guide column 712 and a limiting block 713 arranged on the upper fixed seat 711. The top-pressing riveting component 72 includes a top-pressing cylinder 721 and a moving member 722 arranged on the driving end of the top-pressing cylinder 721. The moving member 722 is provided with a socket hole that is slidably sleeved with the vertical guide column 712, and the moving member 722 is also provided with a top-pressing block 723 arranged opposite to the limiting block 713. During riveting, the base and contact strip with rivets inserted therein move in the conveying trough 31 to between the limiting block 713 and the pressing block 723. Then, the upper end position of the rivet is limited by the limiting block 713, and then the pressing cylinder 721 is driven to press the lower end of the rivet upwardly, so that the lower end of the rivet is deformed and forms a nail cap structure, so that the rivet rivets and locks the base and the contact strip together.

[0038] In the actual application process, in order to separate the assembled base and static contact piece from the contact piece material strip, the utility model is also provided with a material breaking mechanism, the material breaking mechanism includes an upper pressing and clamping assembly and a lower pressing and clamping assembly arranged side by side above and below the conveying trough 31, the upper pressing and clamping assembly includes an upper driving cylinder and an upper pressing block arranged on the upper driving cylinder, and the lower pressing and clamping assembly includes a lower driving cylinder and a lower pressing block arranged on the lower driving cylinder. When breaking the material, the upper pressing block and the lower pressing block are respectively pressed and clamped on the base and the static contact piece by the driving of the upper driving cylinder and the lower driving cylinder, and then, the upper pressing block and the lower pressing block are simultaneously driven by the upper driving cylinder and the lower driving cylinder to maintain the clamping state and move up and down, so that the base and the static contact piece can be separated from the contact piece material strip, and the purpose of breaking the material is achieved.

Claims

1. A temperature controller ceramic base assembly device, comprising a base transmission mechanism (1), a base pushing mechanism (2), and a locking conveying mechanism, wherein the locking conveying mechanism is provided with a conveying groove (31), characterized in that: It also includes a contact strip conveying mechanism (4), which is used to convey the contact strip. The contact strip conveying mechanism (4) is arranged at the input end of the conveying groove (31), and the output end of the contact strip conveying mechanism (4) is connected and communicated with the input end of the conveying groove (31). The base conveying mechanism (1) is arranged behind the contact strip conveying mechanism (4), and the base pushing mechanism (2) is arranged at the output end of the base conveying mechanism (1). The base pushing mechanism (2) is used to push the base to the output end of the contact strip conveying mechanism (4), so that the base is connected with the contact strip card sleeve, and the base is driven to move into the conveying groove (31) through the conveying movement of the contact strip.

2. The temperature controller ceramic base assembly device according to claim 1, characterized in that: An anti-collision block (41) is provided at the output end of the contact sheet material conveying mechanism (4).

3. The temperature controller ceramic base assembly device according to claim 2, characterized in that: An output end of the contact sheet material conveying mechanism (4) is provided with an insertion slot (42), and the anti-collision block (41) is inserted into the insertion slot (42).

4. The temperature controller ceramic base assembly device according to claim 1, characterized in that: The base conveying mechanism (1) comprises a base conveying platform (11) with a base feeding guide groove (12), and a base conveying member arranged on the base conveying platform (11), wherein the base conveying member is used to drive the base to move along the base feeding guide groove (12).

5. The temperature controller ceramic base assembly device according to claim 1, characterized in that: The contact sheet material belt conveying mechanism (4) comprises a contact sheet material belt conveying platform (43) and a material belt conveying roller (44); the contact sheet material belt conveying platform (43) is provided with a material belt feeding guide groove (45); the material belt conveying roller (44) is rotatably arranged in the material belt feeding guide groove (45); the output end of the material belt feeding guide groove (45) is connected to the input end of the conveying groove (31).

6. The temperature controller ceramic base assembly device according to claim 1, characterized in that: The base pushing mechanism (2) comprises a longitudinal guide rail (21), a pushing cylinder (22), and a pushing block (23). The pushing block (23) is provided with a base passage (231). The pushing block (23) is fixed to a driving end of the pushing cylinder (22) so that the pushing block (23) moves longitudinally back and forth on the longitudinal guide rail (21) under the drive of the pushing cylinder (22). When the driving end of the pushing cylinder (22) moves backward, the base passage (231) is connected to the output end of the base conveying mechanism (1).

7. The temperature controller ceramic base assembly device according to claim 1, characterized in that: The locking conveying mechanism comprises a conveying platform (3), and a rivet conveying assembly (5), a nail-piercing assembly (6), and a nail-locking assembly (7) arranged on the conveying platform (3); the conveying trough (31) is arranged on the conveying platform (3).

8. The temperature controller ceramic base assembly device according to claim 7, characterized in that: The rivet conveying assembly (5) comprises a vibrating plate (51) with a discharge end, and a rivet feeding rod (52) with a rivet feeding trough, wherein the input end of the rivet feeding trough is connected to and communicates with the discharge end of the vibrating plate (51), and the conveying platform (3) is provided with a rivet passage (32) connecting the rivet feeding trough with the conveying trough (31).

9. The temperature controller ceramic base assembly device according to claim 7, characterized in that: The rivet insertion assembly (6) comprises a positioning drive component (61) and a rivet magnetic pull-down component (62) which are arranged side by side above and below the conveying groove (31); a driving end of the positioning drive component (61) is provided with a rivet positioning groove (611) so that the rivet positioning groove (611) is connected and communicated with the output end of the rivet conveying assembly (5) under the drive of the positioning drive component (61); and the rivet magnetic pull-down component (62) is used to magnetically attract the rivet in the rivet positioning groove (611) and drive the rivet to move downward, so that the rivet is inserted into the base and the contact sheet material strip.

10. The temperature controller ceramic base assembly device according to claim 7, characterized in that: The locking nail assembly (7) comprises a rivet limiting component (71) and a top-pressing riveting component (72), wherein the rivet limiting component (71) and the top-pressing riveting component (72) are arranged side by side above and below the conveying trough (31), the rivet limiting component (71) is used to limit the position of the upper end of the rivet, and the top-pressing riveting component (72) is used to press the lower end of the rivet to rivet.

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