Riveting device for reinforcing pull rod and clamping piece press machine of AX series relay

Abstract

A press machine riveting device for reinforcing pull rods and clamping pieces of AX series relays relates to the technical field of relay production and comprises an upper die, a lower die and a pull rod component positioning die, the upper die is used for being connected with a stamping part of a press machine and provided with a punch used for stamping rivets, and the pull rod component positioning die is detachably connected with the lower die. The pull rod assembly positioning die is provided with a positioning groove matched with the assembly position of the reinforcing pull rod and the upper / lower clamping piece, the positioning groove is used for limiting the positions of the reinforcing pull rod and the upper / lower clamping piece when the reinforcing pull rod and the upper / lower clamping piece are assembled, and a punch of the upper die corresponds to the position of a rivet when the reinforcing pull rod and the upper / lower clamping piece are assembled. By arranging the upper die, the lower die and the pull rod assembly positioning die, positioning of a reinforced pull rod and a clamping piece in the riveting process is achieved, and finally positioning-riveting integrated operation is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of relay production, and particularly relates to a reinforcing pull rod and clamping piece press riveting device for AX series relays. BACKGROUND

[0002] In the production of the reinforcing pull rod of the AX series relay, the reinforcing pull rod of the AX series relay and the upper / lower clamping piece need to be fixed together through a rivet, and the upper / lower clamping piece is used for clamping the mica sheet during the use of the AX series relay, so as to play a role in isolating the electric arc.

[0003] The existing riveting operation of the reinforcing pull rod and the upper / lower clamping piece of the AX series relay is mainly completed by a manual rammer: an operator manually rotates the rammer, and impacts the riveting position of the reinforcing pull rod by manpower, so as to realize riveting forming. This mode has three core problems: first, the force exerted by manpower is uneven, which easily leads to inconsistent riveting depth and deformation of the riveting position, the precision error is often more than ±0.2mm, the defective rate is as high as 5%-10%, and the subsequent assembly and performance of the relay are affected; second, the manual operation is strong, repeated force needs to be exerted for single riveting, and the operator can only complete 150 pieces per hour, the efficiency is low, and it is difficult to meet the batch production demand; and third, manual positioning depends on experience, and the positioning deviation of different operators further aggravates the riveting quality fluctuation.

[0004] With the expansion of the market demand for the AX series relay, the traditional manual rammer riveting has been unable to adapt to the production rhythm, and it is urgent to solve the above problems by improving the process and the die and combining the stable force exertion characteristics of the press. SUMMARY

[0005] In view of the above shortcomings and deficiencies of the prior art, the present application provides a reinforcing pull rod and clamping piece press riveting device for the AX series relay, which realizes the positioning of the reinforcing pull rod and the clamping piece in the riveting process by setting an upper die, a lower die and a pull rod assembly positioning die, and finally realizes the integrated operation of positioning and riveting.

[0006] In order to achieve the above purpose, the main technical scheme adopted by the present application includes: A reinforcing pull rod and clamping piece press riveting device for the AX series relay, comprising an upper die, a lower die and a pull rod assembly positioning die, the upper die is connected with the stamping part of the press, the upper die has a punch for stamping a rivet, the pull rod assembly positioning die is connected with the lower die for assembly and disassembly, a positioning groove matched with the assembly position of the reinforcing pull rod and the upper / lower clamping piece is formed in the pull rod assembly positioning die, the positioning groove is used for limiting the position of the reinforcing pull rod and the upper / lower clamping piece when the reinforcing pull rod and the upper / lower clamping piece are assembled, and the punch of the upper die corresponds to the position of the rivet when the reinforcing pull rod and the upper / lower clamping piece are assembled.

[0007] Further, the upper die comprises a guide column, an upper die seat and a punch fixedly connected in sequence from top to bottom or integrally formed, the guide column is detachably connected with the stamping part of the press machine, and the upper die is used for stamping the rivets assembled with the reinforcing pull rod and the upper / lower clamping piece by using the power of the press machine.

[0008] Further, the lower die comprises a lower die seat, and the lower die seat is provided with an installation groove for assembling the pull rod assembly positioning die.

[0009] Further, the installation groove is arranged at the middle part of the lower die seat and is open at one side edge, the width of the installation groove matches the width of the pull rod assembly positioning die, and the length of the installation groove is smaller than the length of the pull rod assembly positioning die, so that when the pull rod assembly positioning die is assembled with the installation groove, the partial length of the pull rod assembly positioning die is located outside the installation groove, and the pull rod assembly positioning die is convenient to disassemble from the installation groove.

[0010] Further, the installation groove and the pull rod assembly positioning die are cuboids.

[0011] Further, the pull rod assembly positioning die comprises a pull rod assembly positioning die seat, the pull rod assembly positioning die seat is provided with a reinforcing pull rod positioning groove matched with the reinforcing pull rod, and the pull rod assembly positioning die seat is further provided with a clamping piece positioning groove matched with the position of the upper / lower clamping piece during rivet assembly and a rivet positioning groove matched with the position of the rivet.

[0012] Further, the pull rod assembly positioning die seat is provided with a first clamping piece positioning groove and a second clamping piece positioning groove, the first clamping piece positioning groove and the second clamping piece positioning groove are perpendicular to the reinforcing pull rod positioning groove, and the width of the first clamping piece positioning groove and the second clamping piece positioning groove is at least equal to the total width of the space occupied by the upper / lower clamping piece at the position when the reinforcing pull rod is located at a first rivet position and a second rivet position. The first rivet position is the position of the reinforcing pull rod in the reinforcing pull rod positioning groove when the upper die stamps a group of rivets on one side of the reinforcing pull rod. The second rivet position is the position of the reinforcing pull rod in the reinforcing pull rod positioning groove after the reinforcing pull rod is horizontally turned by 180° when the upper die stamps a group of rivets on the other side of the reinforcing pull rod.

[0013] Further, the first clamping piece positioning groove and the second clamping piece positioning groove are respectively provided with a first group of rivet positioning grooves and a second group of rivet positioning grooves matched with the position of the rivet.

[0014] Further, the pull rod assembly positioning die seat is provided with a reinforcing pull rod bakelite round table avoiding groove matched with the reinforcing pull rod bakelite round table on the reinforcing pull rod.

[0015] Further, the reinforcing pull rod balsa wood round table avoidance groove opened on the pull rod assembly positioning die base at least accommodates the reinforcing pull rod balsa wood round table when the reinforcing pull rod is located in the first riveting position and the second riveting position. The first riveting position is the position when the upper die punches a group of rivets on one side of the reinforcing pull rod when the reinforcing pull rod is located in the reinforcing pull rod positioning groove. The second riveting position is the position when the upper die punches a group of rivets on the other side of the reinforcing pull rod after the reinforcing pull rod is horizontally turned over 180° and located in the reinforcing pull rod positioning groove.

[0016] The beneficial effects of the present application are: the riveting device is simple in structure and low in cost, can be directly adapted to the existing general-purpose press, and does not need additional equipment modification; precise positioning is realized through the positioning assembly, stable force is applied in combination with the press, the manual operation of the traditional manual ramming bed is completely replaced, the problems of low precision and slow efficiency of manual riveting are effectively solved, and the riveting device is suitable for batch production of AX series relay reinforcing pull rods. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the reinforcing pull rod and clamping piece press riveting device for AX series relays; Figure 2 Fig. 2 is a schematic diagram of the upper die structure; Figure 3 Fig. 3 is a schematic diagram of the lower die structure; Figure 4 Fig. 4 is a schematic diagram of the pull rod assembly positioning die structure; Figure 5 Fig. 5 is a schematic diagram of the reinforcing pull rod structure; Figure 6 Fig. 6 is a schematic diagram of the upper / lower clamping piece structure; Figure 7 Fig. 7 is a schematic diagram of the reinforcing pull rod and upper / lower clamping piece riveting structure.

[0018] In the figure: 1 is the upper die, 1-1 is the upper die base, 1-2 is the punch, 1-3 is the guide column, 2 is the lower die, 2-1 is the lower die base, 2-2 is the mounting groove, 3 is the pull rod assembly positioning die, 3-1 is the pull rod assembly positioning die base, 3-2 is the reinforcing pull rod positioning groove, 3-3 is the first clamping piece positioning groove, 3-4 is the first group of rivet positioning grooves, 3-5 is the first reinforcing pull rod balsa wood round table avoidance groove, 3-6 is the second clamping piece positioning groove, 3-7 is the second group of rivet positioning grooves, 3-8 is the second reinforcing pull rod balsa wood round table avoidance groove, 3-9 is the third reinforcing pull rod balsa wood round table avoidance groove, 4 is the reinforcing pull rod, 4-1 is the first balsa wood round table, 4-2 is the second balsa wood round table, 4-3 is the first group of rivet holes, 4-4 is the second group of rivet holes, 5 is the upper / lower clamping piece, 6 is the first group of rivets, and 7 is the second group of rivets. DETAILED DESCRIPTION

[0019] For better explanation of the present application, in order to facilitate understanding, the following specific embodiments are described in detail in combination with the drawings.

[0020] As Figure 1 shown, the present application provides a device for riveting the reinforcing pull rod and the clamping piece of the AX series relay, which is used for riveting the reinforcing pull rod and the clamping piece of the AX series relay by punch fixing assembly through the rivet punch of the press. The riveting device of the present application comprises an upper die 1, a lower die 2 and a pull rod assembly positioning die 3. The upper die 1 is connected with the punch part of the press, and the upper die 1 has a punch for punching the rivet. The pull rod assembly positioning die 3 is detachably connected with the lower die 2, and the pull rod assembly positioning die 3 is provided with a positioning groove matched with the assembly position of the reinforcing pull rod 4 and the upper / lower clamping piece 5. The positioning groove is used for limiting the position of the reinforcing pull rod 4 and the upper / lower clamping piece 5 during assembly. The punch of the upper die 1 corresponds to the position of the rivet during assembly of the reinforcing pull rod 4 and the upper / lower clamping piece 5. During assembly of the reinforcing pull rod 4 and the upper / lower clamping piece 5, the upper die 1 is connected with the punch part of the press, the reinforcing pull rod 4, the upper / lower clamping piece 5 and the rivet are preliminarily assembled and placed in the positioning groove on the pull rod assembly positioning die 3, and then the pull rod assembly positioning die 3 provided with the reinforcing pull rod 4, the upper / lower clamping piece 5 and the rivet is installed on the lower die 2. The rivet connecting the reinforcing pull rod 4 and the upper / lower clamping piece 5 is punched by the press.

[0021] Specifically, as Figure 2 shown, the upper die 1 comprises guide columns 1-3, an upper die seat 1-1 and a punch 1-2 which are fixedly connected in sequence from top to bottom or integrally formed. The guide columns 1-3 are detachably connected with the punch part of the press. Specifically, the press is an existing device, and the guide columns 1-3 can be connected with the punch sliding block of the press. The position of the upper die 1 is adjusted by the sliding block, so that the punch 1-2 is aligned with the position of the rivet to be punched.

[0022] As Figure 3The lower mold 2 comprises a lower mold base 2-1, and a mounting groove 2-2 for assembling the pull rod assembly positioning mold 3 is arranged on the lower mold base 2-1. Specifically, the lower mold base 2-1 can be fixed on the workbench of the press through T-shaped bolts, so that the lower mold base 2-1 remains stable during the stamping process. Specifically, the mounting groove 2-2 is arranged at the middle part of the lower mold base 2-1, and one side of the mounting groove 2-2 is open, so as to facilitate the assembly and disassembly of the pull rod assembly positioning mold 3. The width of the mounting groove 2-2 matches the width of the pull rod assembly positioning mold 3, and the length of the mounting groove 2-2 is less than the length of the pull rod assembly positioning mold 3, so that when the pull rod assembly positioning mold 3 is assembled with the mounting groove 2-2, a part of the length of the pull rod assembly positioning mold 3 is located outside the mounting groove 2-2. More specifically, when the pull rod assembly positioning mold 3 is completely installed in the mounting groove 2-2 on one side of the mounting groove 2-2, the pull rod assembly positioning mold 3 in a length range of 10% to 30% on the other side is exposed outside the mounting groove 2-2, which is convenient for the staff to assemble and disassemble the pull rod assembly positioning mold 3. More specifically, the mounting groove 2-2 and the pull rod assembly positioning mold 3 are cuboids, which are convenient for production and installation.

[0023] As shown in Figure 4 The pull rod assembly positioning mold 3 comprises a pull rod assembly positioning mold base 3-1, a reinforcing pull rod positioning groove 3-2 matched with the reinforcing pull rod 4 is arranged on the pull rod assembly positioning mold base 3-1, and a clamping piece positioning groove matched with the position of the upper / lower clamping piece 5 during riveting assembly and a rivet positioning groove matched with the position of the rivet are also arranged on the pull rod assembly positioning mold base 3-1. Specifically, the reinforcing pull rod positioning groove 3-2 is located at the middle part of the pull rod assembly positioning mold base 3-1 and is arranged along the length direction of the pull rod assembly positioning mold base 3-1, and the shape of the reinforcing pull rod positioning groove 3-2 matches the reinforcing pull rod 4. First and second clamping piece positioning grooves 3-3 and 3-6 are also arranged on the pull rod assembly positioning mold base 3-1, the first and second clamping piece positioning grooves 3-3 and 3-6 are perpendicular to the reinforcing pull rod positioning groove 3-2, and the width of the first and second clamping piece positioning grooves 3-3 and 3-6 is at least equal to the total width of the space occupied by the upper / lower clamping piece 5 at the first and second riveting positions when the reinforcing pull rod 4 is located at the first and second riveting positions. The width of the first and second clamping piece positioning grooves 3-3 and 3-6 refers to the distance along the width direction of the pull rod assembly positioning mold base 3-1.

[0024] Since one reinforcing pull rod 4 needs to be assembled with clamping pieces on both sides, the clamping pieces and the rivets on both sides of the reinforcing pull rod 4 need to be stamped, as Figures 5-7As shown, the first group of rivet holes 4-3 is arranged on one side of the reinforcing pull rod 4, and the second group of rivet holes 4-4 is arranged on the other side. Each group of rivet holes is provided with two rivets. The reinforcing pull rod 4 is horizontally rotated by 180° after the first group of rivets 6 is punched, and then the reinforcing pull rod 4 is placed on the pull rod assembly positioning die holder 3-1, and the second group of rivets 7 is punched. Therefore, the first riveting position is the position of the reinforcing pull rod 4 in the reinforcing pull rod positioning groove 3-2, and the position of the one group of rivets on one side of the reinforcing pull rod is punched by the upper die. The second riveting position is the position of the reinforcing pull rod 4 in the reinforcing pull rod positioning groove 3-2 after the reinforcing pull rod 4 is horizontally rotated by 180°, and the position of the one group of rivets on the other side of the reinforcing pull rod is punched by the upper die.

[0025] Specifically, the first group of rivet positioning grooves 3-4 and the second group of rivet positioning grooves 3-7 are arranged in the first clamping piece positioning groove 3-3 and the second clamping piece positioning groove 3-6, respectively, and the positions of the first rivet 6 and the second rivet 7 are matched, so as to facilitate the positioning and punching of the rivet.

[0026] Since the reinforcing pull rod 4 is provided with a bakelite round table, the pull rod assembly positioning die holder 3-1 is provided with a reinforcing pull rod bakelite round table avoiding groove matched with the bakelite round table on the reinforcing pull rod 4. Specifically, the reinforcing pull rod bakelite round table avoiding groove arranged on the pull rod assembly positioning die holder 3-1 can accommodate the bakelite round table of the reinforcing pull rod at least when the reinforcing pull rod 4 is in the first riveting position and the second riveting position.

[0027] Specifically, since the reinforcing pull rod 4 is provided with the first bakelite round table 4-1 on one side and the second bakelite round table 4-2 in the middle, the first reinforcing pull rod bakelite round table avoiding groove 3-5 and the second reinforcing pull rod bakelite round table avoiding groove 3-8 are arranged on both sides of the pull rod assembly positioning die holder 3-1, respectively, and correspond to the position of the first bakelite round table 4-1 when the first riveting position and the second riveting position, and the size thereof is matched with the first bakelite round table 4-1. The third reinforcing pull rod bakelite round table avoiding groove 3-9 is arranged in the middle of the pull rod assembly positioning die holder 3-1, and the third reinforcing pull rod bakelite round table avoiding groove 3-9 is a rectangular long hole, which can accommodate the second bakelite round table 4-2 when the first riveting position and the second riveting position.

[0028] In use, the lower die seat 2-1 is fixed on the workbench of the press machine by bolts, so that the lower die seat 2-1 is stable. The upper die 1 is connected with the stamping slide of the press machine, the position of the upper die 1 is adjusted by adjusting the position of the stamping slide, so that the punch 1-2 is aligned with the lower die seat 2-1 in the vertical direction. The reinforcing pull rod 4 provided with the upper / lower clamp 5 and rivets is placed in the reinforcing pull rod assembly positioning die 3, so that the reinforcing pull rod 4 is placed in the reinforcing pull rod positioning groove 3-4, and the upper / lower clamp 5 is placed in the clamping piece positioning groove, at this time, the transverse and longitudinal displacement of the reinforcing pull rod 4 is limited. The foot pedal button of the press machine is pressed, the stamping slide drives the upper die 1 to move downward, the press machine outputs pressure, drives the punch 1-2 to stamp the rivets on one side, and riveting forming is completed. After the rivets on one side are stamped, the reinforcing pull rod assembly positioning die 3 is taken out, the reinforcing pull rod 4 and the upper / lower clamp 5 are horizontally rotated by 180° and then placed in the reinforcing pull rod positioning groove 3-4, and the upper / lower clamp 5 is placed in the corresponding clamping piece positioning groove, the foot pedal button of the press machine is pressed, the stamping slide drives the upper die 1 to move downward, the press machine outputs pressure, drives the punch 1-2 to stamp the rivets on the other side, and riveting forming is completed. After the stamping and riveting are completed, the stamping slide of the press machine is reset to the initial position, the operator manually takes out the riveted reinforcing pull rod 4, checks that the riveting part has no deformation and the depth meets the requirements, and then the next riveting can be performed.

[0029] The reinforcing pull rod 4 and the upper / lower clamp 5 are riveted by the device, so that the single riveting time is shortened, the daily riveting completion amount of the operator is improved, the riveting efficiency is improved, and the product quality stability is improved.

[0030] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and any modification, replacement, variation and change of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A riveting device for connecting the reinforcing tie rod and clamping plate of an AX series relay using a press, characterized in that: The assembly includes an upper mold (1), a lower mold (2), and a tie rod assembly positioning mold (3). The upper mold (1) is connected to the stamping part of the press. The upper mold (1) has a punch for stamping rivets. The tie rod assembly positioning mold (3) is connected to the lower mold (2) for assembly and disassembly. The tie rod assembly positioning mold (3) has a positioning groove that matches the assembly position of the reinforcing tie rod (4) and the upper / lower clamping piece (5). The positioning groove is used to limit the position of the reinforcing tie rod (4) and the upper / lower clamping piece (5) when they are assembled. The punch of the upper mold (1) corresponds to the rivet position when the reinforcing tie rod (4) and the upper / lower clamping piece (5) are assembled.

2. The riveting device for reinforcing tie rods and clamping plates of AX series relays according to claim 1, characterized in that: The upper mold (1) includes guide pillars (1-3), upper mold base (1-1), and punch (1-2) that are fixedly connected or integrally formed from top to bottom. The guide pillars (1-3) are connected to the stamping part of the press.

3. The riveting device for reinforcing tie rods and clamping plates of AX series relays according to claim 1, characterized in that: The lower mold (2) includes a lower mold base (2-1), and the lower mold base (2-1) has an installation groove (2-2) for assembling the positioning mold (3) of the tie rod assembly.

4. The riveting device for reinforcing tie rods and clamping plates of AX series relays according to claim 3, characterized in that: The mounting groove (2-2) is located in the middle of the lower mold base (2-1). One side of the mounting groove (2-2) is open. The width of the mounting groove (2-2) matches the width of the tie rod assembly positioning mold (3). The length of the mounting groove (2-2) is less than the length of the tie rod assembly positioning mold (3), so that when the tie rod assembly positioning mold (3) is assembled with the mounting groove (2-2), part of the length of the tie rod assembly positioning mold (3) is located outside the mounting groove (2-2).

5. A riveting device for reinforcing tie rods and clamping plates of AX series relays according to claim 3 or 4, characterized in that: The mounting groove (2-2) and the tie rod assembly positioning mold (3) are cuboids.

6. A riveting device for connecting a reinforcing tie rod and a clamping plate of an AX series relay using a press, as described in claim 1, characterized in that: The tie rod assembly positioning mold (3) includes a tie rod assembly positioning mold base (3-1). The tie rod assembly positioning mold base (3-1) is provided with a reinforcing tie rod positioning groove (3-2) that matches the reinforcing tie rod (4). The tie rod assembly positioning mold base (3-1) is also provided with a clamping piece positioning groove that matches the position of the upper / lower clamping piece (5) during riveting assembly and a rivet positioning groove that matches the position of the rivet.

7. A riveting device for reinforcing tie rods and clamping plates of AX series relays according to claim 6, characterized in that: The tie rod assembly positioning mold base (3-1) is provided with a first clamping plate positioning groove (3-3) and a second clamping plate positioning groove (3-6). The first clamping plate positioning groove (3-3) and the second clamping plate positioning groove (3-6) are perpendicular to the reinforcing tie rod positioning groove (3-2), and their width is at least able to accommodate the total width of the space occupied by the upper / lower clamping plates (5) at the first riveting position and the second riveting position of the reinforcing tie rod (4).

8. A riveting device for reinforcing tie rods and clamping plates of AX series relays according to claim 7, characterized in that: The first clamping plate positioning groove (3-3) and the second clamping plate positioning groove (3-6) are respectively provided with a first set of rivet positioning grooves (3-4) and a second set of rivet positioning grooves (3-7) that match the rivet positions.

9. A riveting device for connecting a reinforcing tie rod and a clamping plate to an AX series relay using a press, as described in claim 6, characterized in that: The positioning mold base (3-1) of the tie rod assembly is provided with a relief groove for the bakelite frustum of the reinforcing tie rod (4) that matches the bakelite frustum on the reinforcing tie rod (4).

10. A riveting device for connecting a reinforcing tie rod and a clamping plate of an AX series relay using a press, as described in claim 9, characterized in that: The reinforced tie rod bakelite frustum clearance groove opened on the tie rod assembly positioning mold base (3-1) can accommodate at least the reinforced tie rod frustum when the reinforced tie rod (4) is located in the first riveting position and the second riveting position.

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