A bolt riveting mechanism and production system for an air conditioner outdoor unit chassis

Abstract

The invention discloses a bolt riveting mechanism and production system for the chassis of an air conditioner outdoor unit, relates to the field of air conditioning technology, and solves the problems of large manpower input, low per capita production efficiency, large machine tool investment, and large tooling investment in the production mode of the chassis of an air conditioner outdoor unit in the prior art. The upper die of the bolt riveting mechanism is provided with a bolt feeding drive unit and a bolt riveting punch, and the lower die is provided with a bolt feeding assembly. When the slider on the punch press moves, the bolt feeding drive unit reciprocates in the vertical direction with the movement of the slider on the punch press, and drives the bolt feeding assembly to reciprocate in the horizontal direction through the contact and separation between the bolt feeding drive unit and the bolt feeding assembly to transport the bolt to the riveting station; when the slider on the punch press moves again, the bolt riveting punch contacts the bolts at the riveting station to complete the riveting action. The bolt riveting mechanism can reduce the manpower and special equipment investment in the transfer process and the riveting process, and improve the per capita production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a bolt riveting mechanism for an air conditioner outdoor unit chassis and a production system for the air conditioner outdoor unit chassis. Background Art

[0002] The chassis of the air conditioner outdoor unit is one of the main parts of the air conditioner outdoor unit. The production volume of the chassis of the air conditioner outdoor unit is large and there are many processes. At present, the production mode of the chassis of the air conditioner outdoor unit is: first stamp out the product, and then transfer it to other machine tools for riveting bolts. In the riveting bolt process, one person needs to place the bolts in the bolt holes of the riveting machine, and then another person places the chassis of the air conditioner outdoor unit on the riveting machine, and the riveting process is completed by the action of the riveting machine.

[0003] However, the applicant found that the existing production model of the air-conditioning outdoor unit chassis has at least the following defects: the riveting process of the air-conditioning outdoor unit chassis requires the joint cooperation of two people to complete, and there are defects such as large manpower investment, low per capita production efficiency, large machine tool investment, and large tooling investment; on the other hand, since the aperture of the bolt hole on the riveting machine is small, when the operator places the bolt in the bolt hole, not only a larger operating space is required for easy operation, but also a slower speed is required to accurately place the bolt in the bolt hole, which is inefficient.

[0004] Therefore, improving the existing production mode of the air-conditioning outdoor unit chassis and providing an air-conditioning outdoor unit chassis production mode that can reduce manpower and equipment investment has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] One of the purposes of the present invention is to provide a bolt riveting mechanism and production system for an air conditioner outdoor unit chassis, which solves the technical problems of large manpower input, low per capita production efficiency, large machine tool investment, and large tooling investment in the production mode of the air conditioner outdoor unit chassis in the prior art. The many technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention is used for a bolt riveting mechanism of an air conditioner outdoor unit chassis, comprising an upper die and a lower die, wherein the upper die is fixed on a slider on a punch press, and the lower die is fixed on a lower table of the punch press, wherein a bolt feeding drive unit and a bolt riveting punch are provided on the upper die, and a bolt feeding assembly is provided on the lower die, when the slider on the punch press moves, the bolt feeding drive unit reciprocates in the vertical direction along with the movement of the slider on the punch press, and drives the bolt feeding assembly to reciprocate in the horizontal direction through contact and separation between the bolt feeding drive unit and the bolt feeding assembly to transport the bolts to the riveting station; when the slider on the punch press moves again, the riveting action is completed through the contact between the bolt riveting punch and the bolts at the riveting station.

[0008] According to a preferred embodiment, one end of the bolt feeding drive portion close to the bolt feeding assembly is a sloped structure, and the bolt feeding assembly is driven to move in a direction away from the riveting station by the abutment between the slope of the bolt feeding drive portion and the bolt feeding assembly, and the bolt feeding assembly is moved in a direction close to the riveting station by the separation of the slope of the bolt feeding drive portion from the bolt feeding assembly.

[0009] According to a preferred embodiment, a first return spring is also provided on the lower die, one end of the first return spring is connected to the bolt feeding assembly, the other end of the first return spring is fixed to the lower die, and when the bolt feeding drive unit drives the bolt feeding assembly to move in a direction away from the riveting station, the length of the first return spring gradually shortens and is in a gradually compressed state; when the bolt feeding drive unit is separated from the bolt feeding assembly, the length of the first return spring gradually lengthens and drives the bolt feeding assembly to move in a direction close to the riveting station, so as to deliver the bolts to the riveting station.

[0010] According to a preferred embodiment, the bolt feeding assembly includes a first slider, a bearing, a second slider, a guide rail, a push rod and a pushing claw assembly, wherein the bearing is installed on the first slider, the guide rail is fixed on the lower die, the second slider is slidably arranged on the guide rail, the first slider is connected to the second slider, the push rod is connected to the second slider, and the pushing claw assembly is arranged on the push rod; when the slider on the punch press moves downward, the bolt feeding drive part abuts against the bearing and drives the first slider and the second slider to slide on the guide rail, and the push rod moves in a direction away from the riveting station under the drive of the first slider and the second slider; when the slider on the punch press moves upward, the bolt feeding drive part is separated from the bearing, and the push rod moves in a direction close to the riveting station under the drive of the first slider and the second slider, and the bolts are transported to the riveting station through the pushing claw assembly.

[0011] According to a preferred embodiment, the pushing claw assembly includes a pushing claw, a rotating shaft and a second return spring, wherein the rotating shaft is fixed to the push rod, and the pushing claw is rotatably arranged on the rotating shaft, one end of the second return spring is connected to the pushing claw, and the other end of the second return spring is fixed to the push rod, and during the movement of the push rod in the direction away from the riveting station, when the pushing claw contacts the bolt to be transported, the end of the pushing claw rotates toward the direction close to the push rod, and the length of the second return spring gradually shortens and is in a gradually compressed state. When the pushing claw is separated from the bolt to be transported, the length of the second return spring gradually extends and drives the end of the pushing claw to rotate in the direction away from the push rod; during the movement of the push rod in the direction close to the riveting station, the pushing claw pushes the bolt to be transported to the riveting station.

[0012] According to a preferred embodiment, a bolt fixing assembly is also provided on the lower die, and the bolt fixing assembly is located at the riveting station and is used to fix the bolts delivered by the bolt feeding assembly.

[0013] According to a preferred embodiment, the bolt fixing assembly includes a first mold half, a second mold half, a fixed shaft, a third return spring and a fourth return spring, wherein the fixed shaft is fixed to the lower mold, one end of the first mold half and the second mold half is rotatably arranged on the fixed shaft, the other end of the first mold half and the second mold half has an open state and a closed state, a fixing hole is formed between the first mold half and the second mold half, one end of the third return spring is connected to the first mold half, the other end of the third return spring is fixed to the lower mold, one end of the fourth return spring is connected to the second mold half, the other end of the fourth return spring is fixed to the lower mold, and when the bolt feeding assembly moves to the riveting station, the first mold half and the second mold half rotate in the direction of the open state under the extrusion of the bolt, and the length of the third return spring and the fourth return spring gradually shortens and is in a gradually compressed state; when the bolt is delivered to the fixing hole, the length of the third return spring and the fourth return spring gradually lengthens and respectively drives the first mold half and the second mold half to rotate in the direction of the closed state to fix the bolt.

[0014] According to a preferred embodiment, semicircular holes are respectively arranged on the inner sides of the first mold half and the second mold half, the two semicircular holes form a fixing hole, and the center of the semicircular hole overlaps with the center of the bolt located in the fixing hole, and the hole diameter of the semicircular hole is the same as the outer diameter of the bolt located in the fixing hole.

[0015] According to a preferred embodiment, the first mold half and the second mold half are respectively provided with a first guide portion and a second guide portion at one end away from the fixed axis, the first guide portion and the second guide portion are inclined surface structures, and when the first mold half and the second mold half are in a closed state, the first guide portion and the second guide portion form a notch structure.

[0016] The present invention discloses a production system for an air conditioner outdoor unit chassis, comprising a punching machine and a bolt riveting mechanism, wherein the bolt riveting mechanism is arranged on the punching machine, and the bolt riveting mechanism is the bolt riveting mechanism for an air conditioner outdoor unit chassis described in any technical solution of the present invention.

[0017] The bolt riveting mechanism and production system for the chassis of the air conditioner outdoor unit provided by the present invention have at least the following beneficial technical effects:

[0018] The present invention is used for a bolt riveting mechanism for an air-conditioning outdoor unit chassis. The bolt feeding driving part reciprocates in the vertical direction with the movement of the slider on the punch press, and drives the bolt feeding assembly to reciprocate in the horizontal direction through the contact and separation between the bolt feeding driving part and the bolt feeding assembly to transport the bolt to the riveting station. When the slider on the punch press moves again, the riveting action is completed by the contact between the bolt riveting punch and the bolts at the riveting station. That is, the present invention provides a new bolt riveting process. In the production process of the air-conditioning outdoor unit chassis, the bolt riveting mechanism for the air-conditioning outdoor unit chassis of the present invention is used to realize the integrated production of stamping and bolt riveting, reduce the manpower and special equipment investment in the transfer process and the riveting process, achieve a reduction of 2 people per shift, improve per capita production efficiency, and reduce production costs.

[0019] The present invention is a production system for an air-conditioning outdoor unit chassis, comprising a punching machine and a bolt riveting mechanism, wherein the bolt riveting mechanism is arranged on the punching machine, and the bolt riveting mechanism is a bolt riveting mechanism for an air-conditioning outdoor unit chassis of any technical solution of the present invention, that is, the present invention also provides a new production mode for an air-conditioning outdoor unit chassis, in which the production process of the air-conditioning outdoor unit chassis can realize integrated production of stamping and bolt riveting, thereby reducing the manpower and special equipment investment in the transfer process and the riveting process, achieving a reduction of 2 people in a single shift, improving per capita production efficiency, and reducing production costs.

[0020] That is, the bolt riveting mechanism and production system for the air conditioner outdoor unit chassis of the present invention solves the technical problems of large manpower investment, low per capita production efficiency, large machine tool investment, and large tooling investment in the prior art production mode of the air conditioner outdoor unit chassis.

[0021] In addition, the preferred technical solution of the present invention can also produce the following technical effects:

[0022] The bolt fixing assembly of the preferred technical solution of the present invention includes a first mold flap, a second mold flap, a fixed shaft, a third return spring and a fourth return spring. The first mold flap and the second mold flap can be in an open state under the pressure of the bolt, and the first mold flap and the second mold flap can also be in a closed state under the elastic force of the third return spring and the fourth return spring. Through the opening and closing of the first mold flap and the second mold flap, not only can the bolt be accurately delivered to the fixing hole for fixing, but also it has the advantage of high efficiency. That is, the bolt fixing assembly of the preferred technical solution of the present invention solves the technical problems in the prior art that the placement of the bolt not only requires a large operating space, but also has low efficiency and difficult alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of a preferred embodiment of a bolt riveting mechanism for an air conditioner outdoor unit chassis of the present invention;

[0025] Figure 2 is a first schematic diagram of a preferred embodiment of a bolt feeding assembly of the present invention;

[0026] Figure 3 is a second schematic diagram of a preferred embodiment of a bolt feeding assembly of the present invention;

[0027] Figure 4 is a third schematic diagram of a preferred embodiment of a bolt feeding assembly of the present invention;

[0028] Figure 5 is a fourth schematic diagram of a preferred embodiment of a bolt feeding assembly of the present invention;

[0029] Figure 6 is a first schematic diagram of a preferred embodiment of the lower mold of the present invention;

[0030] Figure 7 yes Figure 6 A partial enlarged view of

[0031] Figure 8 is a schematic diagram of a preferred embodiment of a bolt fixing assembly of the present invention;

[0032] Fig. 9 FIG. 2 is a schematic diagram of a second preferred embodiment of the lower mold of the present invention;

[0033] Fig.10 yes Fig. 9 A partial enlarged view of .

[0034] In the figure: 10, upper die; 101, bolt feeding drive unit; 102, bolt riveting punch; 20, lower die; 201, bolt feeding assembly; 2011, first slider; 2012, bearing; 2013, second slider; 2014, guide rail; 2015, push rod; 2016, push claw; 2017, rotating shaft; 2018, second return spring; 202, first return spring; 203, bolt fixing assembly; 2031, first mold flap; 2031a, first guide part; 2032, second mold flap; 2032a, second guide part; 2033, fixed shaft; 2034, third return spring; 2035, fourth return spring; 30, vibration plate. DETAILED DESCRIPTION

[0035] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0036] The following is attached to the instruction manual Figures 1 to 10 And embodiments 1 and 2 describe in detail the bolt riveting mechanism and production system for the air conditioner outdoor unit chassis of the present invention.

[0037] Example 1

[0038] This embodiment describes in detail the bolt riveting mechanism of the present invention for the chassis of the air conditioner outdoor unit.

[0039] The bolt riveting mechanism of the present embodiment for the chassis of the air conditioner outdoor unit includes an upper die 10 and a lower die 20. Figure 1 As shown. Preferably, the upper die 10 is fixed on the slider of the punch press, and the lower die 20 is fixed on the lower table of the punch press. The upper die 10 is provided with a bolt feeding drive unit 101 and a bolt riveting punch 102, and the lower die 20 is provided with a bolt feeding assembly 201, as shown in FIG. Figure 1As shown. When the slider on the punch press moves, the bolt feeding drive unit 101 reciprocates in the vertical direction with the movement of the slider on the punch press, and the bolt feeding assembly 201 is driven to reciprocate in the horizontal direction through the contact and separation between the bolt feeding drive unit 101 and the bolt feeding assembly 201 to deliver the bolt to the riveting station; when the slider on the punch press moves again, the bolt riveting punch 102 contacts the bolts at the riveting station to complete the riveting action. The structure of the bolt riveting punch 102 can be the same as the prior art, and will not be repeated here. Specifically, when the slider on the punch press moves downward again, the bolt riveting punch 102 on the upper die 10 contacts the bolts at the riveting station to start riveting, and when the slider on the punch press moves to the lower dead point, the riveting action is completed. It can be seen that the upper die 10 reciprocates with the slider on the punch press once, which can realize the delivery of the bolts to the riveting station, and can also complete the riveting action on the bolts delivered by the last reciprocating motion.

[0040] Preferably, the number of bolt feeding drive units 101 and the number of bolt feeding assemblies 201 can be determined based on the number of bolts to be riveted, and the number of bolt feeding drive units 101 corresponds to the number of bolt feeding assemblies 201. For example, the number of bolt feeding drive units 101 is three, and the number of bolt feeding assemblies 201 is also three. The three bolt feeding drive units 101 respectively drive the three bolt feeding assemblies 201 to reciprocate in the horizontal direction to deliver the three bolts to the riveting station, such as Figure 1 shown.

[0041] The bolt riveting mechanism used in the air conditioner outdoor unit chassis of this embodiment provides a new bolt riveting process. In the production process of the air conditioner outdoor unit chassis, the bolt riveting mechanism used in the air conditioner outdoor unit chassis of this embodiment can realize the integrated production of stamping and bolt riveting, reduce the manpower and special equipment investment in the transfer process and the riveting process, achieve a reduction of 2 people per shift, improve per capita production efficiency, and reduce production costs. That is, the bolt riveting mechanism used in the air conditioner outdoor unit chassis of this embodiment solves the technical problems of large manpower investment, low per capita production efficiency, large machine tool investment, and large tooling investment in the production mode of the air conditioner outdoor unit chassis in the prior art.

[0042] According to a preferred embodiment, one end of the bolt feeding drive part 101 close to the bolt feeding assembly 201 is a sloped structure, and the bolt feeding assembly 201 is driven to move in a direction away from the riveting station by the contact between the slope of the bolt feeding drive part 101 and the bolt feeding assembly 201, and the bolt feeding assembly 201 is moved in a direction close to the riveting station by the separation of the slope of the bolt feeding drive part 101 and the bolt feeding assembly 201. Figure 1 Preferably, the length of the inclined surface is based on the bolt feeding drive unit 101 being able to drive the bolt feeding assembly 201 from the initial position to the position where the bolt can be pushed, that is, the bolt feeding assembly 201 is driven by Figure 1Move from position A to position B.

[0043] According to a preferred embodiment, the lower die 20 is further provided with a first return spring 202. Figure 1 As shown. One end of the first return spring 202 is connected to the bolt feeding assembly 201, and the other end of the first return spring 202 is fixed to the lower die 20. When the bolt feeding drive unit 101 drives the bolt feeding assembly 201 to move in a direction away from the riveting station, the length of the first return spring 202 gradually shortens and is in a gradually compressed state; when the bolt feeding drive unit 101 is separated from the bolt feeding assembly 201, the length of the first return spring 202 gradually lengthens and drives the bolt feeding assembly 201 to move in a direction close to the riveting station to deliver the bolts to the riveting station. The material, elasticity and / or length of the first return spring 202 are determined based on the driving force required when the bolt feeding assembly 201 returns. The lower die 20 of the preferred technical solution of this embodiment is also provided with a first return spring 202. When the bolt feeding driving part 101 is separated from the bolt feeding assembly 201, the elastic force of the first return spring 202 can be used to drive the bolt feeding assembly 201 to move toward the riveting station, that is, to drive the bolt feeding assembly 201 to move toward the riveting station. Figure 1 The B position in the riveting machine moves to the A position, thereby pushing the bolt to the riveting station.

[0044] According to a preferred embodiment, the bolt feeding assembly 201 includes a first slider 2011, a bearing 2012, a second slider 2013, a guide rail 2014, a push rod 2015 and a push claw assembly. Figures 2 to 5 As shown. The bearing 2012 is installed on the first slider 2011, the guide rail 2014 is fixed on the lower mold 20, the second slider 2013 is slidably arranged on the guide rail 2014, the first slider 2011 is connected to the second slider 2013, the push rod 2015 is connected to the second slider 2013, and the push claw assembly is arranged on the push rod 2015, as shown. Figures 2 to 5 As shown. When the slider on the punch press moves downward, the bolt feeding drive unit 101 abuts against the bearing 2012 and drives the first slider 2011 and the second slider 2013 to slide on the guide rail 2014, and the push rod 2015 moves away from the riveting station driven by the first slider 2011 and the second slider 2013; when the slider on the punch press moves upward, the bolt feeding drive unit 101 separates from the bearing 2012, and the push rod 2015 moves toward the riveting station driven by the first slider 2011 and the second slider 2013, and delivers the bolt to the riveting station by pushing the claw assembly. The structure of the bolt feeding assembly 201 of the preferred technical solution of this embodiment utilizes the sliding of the first slider 2011 and the second slider 2013 to drive the push rod 2015 to slide, that is, the bolt feeding assembly 201 consists of Figure 1When the B position in the drawing moves toward the A position, the bolt is pushed to the riveting position by the push claw assembly on the push rod 2015.

[0045] Preferably, the number of the pushing claw assemblies is two groups, and the two groups of pushing claw assemblies are arranged at intervals, such as Figure 3 The preferred technical solution of this embodiment is that the number of the pushing claw assemblies is two groups, and the two groups of pushing claw assemblies are arranged at intervals. Figure 1 The B position in the figure moves to the A position, and one of the push claw assemblies can Figure 6 The bolt at the middle C position is pushed to the riveting station, and another push claw assembly can Figure 6 The bolt at position D is pushed to position C to improve the efficiency of the next bolt delivery.

[0046] According to a preferred embodiment, the push claw assembly includes a push claw 2016, a rotating shaft 2017 and a second return spring 2018. Figure 3 As shown. The rotating shaft 2017 is fixed on the push rod 2015, the pushing claw 2016 is rotatably arranged on the rotating shaft 2017, one end of the second return spring 2018 is connected to the pushing claw 2016, and the other end of the second return spring 2018 is fixed to the push rod 2015, and when the push rod 2015 moves in the direction away from the riveting station, when the pushing claw 2016 contacts the bolt to be transported, the end of the pushing claw 2016 rotates in the direction close to the push rod 2015, and the length of the second return spring 2018 gradually shortens and is in a gradually compressed state. When the pushing claw 2016 is separated from the bolt to be transported, the length of the second return spring 2018 gradually extends and drives the end of the pushing claw 2016 to rotate in the direction away from the push rod 2015; when the push rod 2015 moves in the direction close to the riveting station, the pushing claw 2016 pushes the bolt to be transported to the riveting station. The material, elasticity and / or length of the second return spring 2018 are determined based on the driving force required when the push claw 2016 returns to its original position. Figure 1 When the position A in the figure moves to the position B, the push claw 2016 and the bolt to be transported (i.e., the bolt located at Figure 6 When the bolts at the C and D positions in the middle are in contact, the end of the push claw 2016 is blocked by the bolt and rotates into the push rod 2015; when the upper die 10 moves to the lower dead center with the slider on the punch press, that is, the bolt feeding assembly 201 is Figure 1 The A position in the figure moves to the B position, at which time the push claw 2016 and the bolt to be transported (i.e., located at Figure 6The bolts at the C and D positions in the middle are not in contact, the resistance on the end of the push claw 2016 is eliminated, and the push claw 2016 extends from the push rod 2015 under the action of the second return spring 2018; when the upper die 10 moves upward with the slider on the punch press, the bolt feeding assembly 201 moves toward the riveting station under the elastic force of the first return spring 202, that is, the bolt feeding assembly 201 is moved by Figure 1 The B position in the middle moves to the A position, and the push claw 2016 pushes Figure 6 The bolts at positions C and D move toward the riveting station.

[0047] According to a preferred embodiment, a bolt fixing assembly 203 is also provided on the lower die 20, and the bolt fixing assembly 203 is located at the riveting station and is used to fix the bolts delivered by the bolt feeding assembly 201. Figure 6 or Fig. 9 Preferably, the bolt fixing assembly 203 includes a first mold half 2031, a second mold half 2032, a fixing shaft 2033, a third return spring 2034 and a fourth return spring 2035, as shown in FIG. Figure 8 As shown. The fixed shaft 2033 is fixed to the lower mold 20, one end of the first mold half 2031 and the second mold half 2032 are rotatably arranged on the fixed shaft 2033, the other ends of the first mold half 2031 and the second mold half 2032 have an open state and a closed state, a fixing hole is formed between the first mold half 2031 and the second mold half 2032, one end of the third return spring 2034 is connected to the first mold half 2031, and the other end of the third return spring 2034 is fixed to the lower mold 20, one end of the fourth return spring 2035 is connected to the second mold half 2032, and the other end of the fourth return spring 2035 is fixed to the lower mold 20, as shown. Figure 8 As shown. When the bolt feeding assembly 201 moves to the riveting station, the first mold half 2031 and the second mold half 2032 rotate in the direction of the open state under the pressure of the bolt, and the length of the third return spring 2034 and the fourth return spring 2035 gradually shortens and is in a gradually compressed state; when the bolt is fed to the fixing hole, the length of the third return spring 2034 and the fourth return spring 2035 gradually lengthens and drives the first mold half 2031 and the second mold half 2032 to rotate in the direction of the closed state respectively to fix the bolt. The material, elasticity and / or length of the third return spring 2034 and the fourth return spring 2035 are determined based on the driving force required when the first mold half 2031 and the second mold half 2032 return. Figure 6 and Figure 7 is a schematic diagram showing the first mold half 2031 and the second mold half 2032 in an open state, Fig. 9 and Fig.10It is a schematic diagram of the first mold half 2031 and the second mold half 2032 in a closed state. The structure of the bolt fixing assembly of the preferred technical solution of this embodiment is that the first mold half 2031 and the second mold half 2032 can be in an open state under the pressure of the bolt, and the first mold half 2031 and the second mold half 2032 can also be in a closed state under the elastic force of the third return spring 2034 and the fourth return spring 2035. Through the opening and closing of the first mold half 2031 and the second mold half 2032, not only can the bolt be accurately transported to the fixing hole for fixing, but also it has the advantage of high efficiency. That is, the bolt fixing assembly of the preferred technical solution of this embodiment solves the technical problems in the prior art that not only a large operating space is required when placing the bolt, but also the efficiency is low and it is difficult to align.

[0048] Specifically, as shown in the figure, when Figure 6 When the bolt at the middle C position contacts the bolt fixing assembly 203 in the closed state and continues to move into the bolt fixing assembly 203, the first mold half 2031 and the second mold half 2032 are squeezed into the open state, such as Figure 6 or Figure 7 As shown, when the bolt feeding assembly 201 is Figure 1 When the position B in the mold moves to the position A, the bolt at the position C is pushed into the bolt fixing assembly 203, and the first mold half 2031 and the second mold half 2032 are in a closed state under the elastic force of the third return spring 2034 and the fourth return spring 2035, fixing the bolt in the bolt fixing assembly 203. Fig. 9 or Fig.10 As shown; the bolt in position D is pushed to position C.

[0049] According to a preferred embodiment, the inner sides of the first mold half 2031 and the second mold half 2032 are respectively provided with semicircular holes, the two semicircular holes form a fixing hole, and the center of the semicircular hole overlaps with the center of the bolt located in the fixing hole, and the diameter of the semicircular hole is the same as the outer diameter of the bolt located in the fixing hole. Figure 8 The semicircular center and aperture of the first mold half 2031 and the second mold half 2032 of the preferred technical solution of this embodiment can ensure the concentricity of the fixing hole and the bolt, so as to accurately position the bolt.

[0050] According to a preferred embodiment, the first mold half 2031 and the second mold half 2032 are respectively provided with a first guide portion 2031a and a second guide portion 2032a at one end away from the fixed shaft 2033. Figure 8 Preferably, the first guide portion 2031a and the second guide portion 2032a are inclined structures, and when the first mold half 2031 and the second mold half 2032 are in a closed state, the first guide portion 2031a and the second guide portion 2032a are formed into a notch structure, such as Figure 8 or Fig.10 In the preferred technical solution of this embodiment, the first guide portion 2031a and the second guide portion 2032a form a notch structure. When the bolt to be transported contacts the bolt fixing assembly 203 in a closed state, the bolt first contacts the notch structure. The notch structure is conducive to guiding the bolt, so that the bolt continues to move into the bolt fixing assembly 203, thereby squeezing the first mold half 2031 and the second mold half 2032 into an open state.

[0051] According to a preferred embodiment, the bolt riveting mechanism for the chassis of the air conditioner outer unit further includes a vibration plate 30, such as Figure 1 The vibration plate 30 is used to transport the bolts to the initial position, i.e. Figure 6 The structure of the vibration plate 30 can be the same as that of the prior art and will not be described in detail here. The preferred technical solution of this embodiment is used for the bolt riveting mechanism of the air conditioner outdoor unit chassis and also includes a vibration plate 30. The vibration plate 30 can continuously deliver bolts to the lower mold 20, thereby continuously delivering bolts to the riveting station and improving the efficiency of the riveting process.

[0052] Example 2

[0053] This embodiment describes in detail the production system for the chassis of the outdoor unit of the air conditioner of the present invention.

[0054] This embodiment is a production system for an air conditioner outdoor unit chassis, comprising a punch press and a bolt riveting mechanism. Preferably, the bolt riveting mechanism is disposed on the punch press, and the bolt riveting mechanism is a bolt riveting mechanism for an air conditioner outdoor unit chassis of any technical solution in Embodiment 1. Preferably, the structure of the punch press can be the same as that of the prior art, and is used to punch out products, which will not be described in detail here.

[0055] The production system of the air conditioner outdoor unit chassis of this embodiment provides a new production mode of the air conditioner outdoor unit chassis. In the production process of the air conditioner outdoor unit chassis, stamping and bolt riveting can be integrated, reducing the manpower and special equipment input in the transfer process and the riveting process, achieving a reduction of 2 people per shift, improving per capita production efficiency, and reducing production costs. That is, the production system of the air conditioner outdoor unit chassis of this embodiment solves the technical problems of large manpower input, low per capita production efficiency, large machine tool investment, and large tooling investment in the production mode of the air conditioner outdoor unit chassis in the prior art.

[0056] In the description of the present invention, it should be noted that, unless otherwise specified, "multiple" means two or more than two; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0058] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A bolt riveting mechanism for an air conditioner outdoor unit chassis, characterized in that: The invention comprises an upper die (10) and a lower die (20), wherein the upper die (10) is fixed on a slide block on a punch press, and the lower die (20) is fixed on a lower table of the punch press, wherein the upper die (10) is provided with a bolt feeding drive unit (101) and a bolt riveting punch (102), and the lower die (20) is provided with a bolt feeding assembly (201). When the slider on the punch press moves, the bolt feeding drive unit (101) reciprocates in the vertical direction along with the movement of the slider on the punch press, and drives the bolt feeding assembly (201) to reciprocate in the horizontal direction to transport the bolts to the riveting station through the contact and separation between the bolt feeding drive unit (101) and the bolt feeding assembly (201); when the slider on the punch press moves again, the riveting action is completed through the contact between the bolt riveting punch (102) and the bolts at the riveting station; The lower die (20) is also provided with a bolt fixing assembly (203), and the bolt fixing assembly (203) is located at the riveting station and is used to fix the bolts delivered by the bolt feeding assembly (201); The bolt fixing assembly (203) comprises a first mold half (2031), a second mold half (2032), a fixing shaft (2033), a third return spring (2034) and a fourth return spring (2035), wherein: The fixed shaft (2033) is fixed to the lower mold (20), one end of the first mold half (2031) and the second mold half (2032) are rotatably arranged on the fixed shaft (2033), the other ends of the first mold half (2031) and the second mold half (2032) have an open state and a closed state, a fixing hole is formed between the first mold half (2031) and the second mold half (2032), one end of the third return spring (2034) is connected to the first mold half (2031), and the other end of the third return spring (2034) is fixed to the lower mold (20), one end of the fourth return spring (2035) is connected to the second mold half (2032), and the other end of the fourth return spring (2035) is fixed to the lower mold (20), and When the bolt feeding assembly (201) moves to the riveting station, the first mold half (2031) and the second mold half (2032) rotate in the direction of the open state under the pressure of the bolt, and the lengths of the third return spring (2034) and the fourth return spring (2035) gradually shorten and are in a gradually compressed state; when the bolt is fed to the fixing hole, the lengths of the third return spring (2034) and the fourth return spring (2035) gradually lengthen and respectively drive the first mold half (2031) and the second mold half (2032) to rotate in the direction of the closed state to fix the bolt; The bolt feeding assembly (201) comprises a first slider (2011), a bearing (2012), a second slider (2013), a guide rail (2014), a push rod (2015) and a pushing claw assembly, wherein: The bearing (2012) is mounted on the first slider (2011), the guide rail (2014) is fixed on the lower mold (20), the second slider (2013) is slidably arranged on the guide rail (2014), the first slider (2011) is connected to the second slider (2013), the push rod (2015) is connected to the second slider (2013), and the pushing claw assembly is arranged on the push rod (2015). When the slider on the punch press moves downward, the bolt feeding drive unit (101) abuts against the bearing (2012) and drives the first slider (2011) and the second slider (2013) to slide on the guide rail (2014), and the push rod (2015) moves in a direction away from the riveting station under the drive of the first slider (2011) and the second slider (2013); when the slider on the punch press moves upward, the bolt feeding drive unit (101) separates from the bearing (2012), and the push rod (2015) moves in a direction close to the riveting station under the drive of the first slider (2011) and the second slider (2013), and delivers the bolt to the riveting station through the pushing claw assembly; The pushing claw assembly comprises a pushing claw (2016), a rotating shaft (2017) and a second return spring (2018), wherein the rotating shaft (2017) is fixed to the push rod (2015), the pushing claw (2016) is rotatably arranged on the rotating shaft (2017), one end of the second return spring (2018) is connected to the pushing claw (2016), and the other end of the second return spring (2018) is fixed to the push rod (2015), and During the movement of the push rod (2015) in the direction away from the riveting station, when the pushing claw (2016) contacts the bolt to be transported, the end of the pushing claw (2016) rotates in the direction close to the push rod (2015), and the length of the second return spring (2018) gradually shortens and is in a gradually compressed state. When the pushing claw (2016) is separated from the bolt to be transported, the length of the second return spring (2018) gradually extends and drives the end of the pushing claw (2016) to rotate in the direction away from the push rod (2015); during the movement of the push rod (2015) in the direction close to the riveting station, the pushing claw (2016) pushes the bolt to be transported to the riveting station.

2. The bolt riveting mechanism for the chassis of the air conditioner outdoor unit according to claim 1, characterized in that: One end of the bolt feeding drive part (101) close to the bolt feeding assembly (201) is a sloped structure, and the bolt feeding assembly (201) is driven to move in a direction away from the riveting station by the abutment between the slope of the bolt feeding drive part (101) and the bolt feeding assembly (201), and the bolt feeding assembly (201) is moved in a direction close to the riveting station by the separation between the slope of the bolt feeding drive part (101) and the bolt feeding assembly (201).

3. The bolt riveting mechanism for the chassis of the air conditioner outdoor unit according to claim 1 or 2, characterized in that: The lower die (20) is also provided with a first return spring (202), one end of the first return spring (202) is connected to the bolt feeding assembly (201), and the other end of the first return spring (202) is fixed to the lower die (20), and When the bolt feeding drive unit (101) drives the bolt feeding assembly (201) to move in a direction away from the riveting station, the length of the first return spring (202) gradually shortens and is in a gradually compressed state; when the bolt feeding drive unit (101) separates from the bolt feeding assembly (201), the length of the first return spring (202) gradually lengthens and drives the bolt feeding assembly (201) to move in a direction close to the riveting station, so as to transport the bolts to the riveting station.

4. The bolt riveting mechanism for the chassis of the air conditioner outdoor unit according to claim 1, characterized in that: Semicircular holes are respectively arranged on the inner sides of the first mold half (2031) and the second mold half (2032), and the two semicircular holes form a fixing hole, and the center of the semicircular hole overlaps with the center of the bolt located in the fixing hole, and the hole diameter of the semicircular hole is the same as the outer diameter of the bolt located in the fixing hole.

5. The bolt riveting mechanism for the chassis of the air conditioner outdoor unit according to claim 1, characterized in that: The first mold half (2031) and the second mold half (2032) are respectively provided with a first guide portion (2031a) and a second guide portion (2032a) at one end away from the fixed axis (2033), the first guide portion (2031a) and the second guide portion (2032a) are inclined structures, and when the first mold half (2031) and the second mold half (2032) are in a closed state, the first guide portion (2031a) and the second guide portion (2032a) are formed into a notch structure.

6. A production system for an air conditioner outdoor unit chassis, characterized in that: The invention comprises a punching machine and a bolt riveting mechanism, wherein the bolt riveting mechanism is arranged on the punching machine, and the bolt riveting mechanism is the bolt riveting mechanism for the chassis of the air conditioner outdoor unit according to any one of claims 1 to 5.

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