CN113351424B

CN113351424B - Charging plug and oil and glue dispensing station of assembly line of charging plug

Info

Publication number: CN113351424B
Application number: CN202110633400.6A
Authority: CN
Inventors: 魏海江; 杜勇; 鞠栋杰
Original assignee: Jining Haifu Electronic Technology Co Ltd
Current assignee: Xuzhou Haifu Light Metal Technology Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-05-03
Anticipated expiration: 2041-06-07
Also published as: CN113351424A

Abstract

The embodiment of the application provides station and charging plug are glued to point oil point of charging plug's assembly line, the station is glued to point oil point includes some oily device and some mucilage binding. The oil dispensing device is configured to dispense oil to a first position and a second position in a shell of the charging plug and two ends of a connecting shaft of the charging plug; the dispensing device is configured to dispense glue in a housing of the charging plug to form a first dispensing position and a second dispensing position. The utility model provides a charge plug's assembly line's some oil point glues the station some oil device can carry out some oil to the both ends of the first position in the shell, second position and connecting axle, some oil device can glue the position to the first point in the shell and the point is glued the position to the second point and is glued the position and carry out some glue to improve the pivot for shell pivoted flexibility to and support and conversion head bond the stability of fixing in the shell.

Description

Charging plug and oil and glue dispensing station of assembly line of charging plug

Technical Field

This application belongs to electrical equipment subassembly technical field, specifically, this application relates to a station and charging plug are glued to point oil point of assembly line of charging plug.

Background

With the increasing popularity and variety of electronic devices, the variety of charging plugs used to charge the electronic devices is more and more diversified. Along with the gradual development of the performance and the appearance of the charging plug, the positioning accuracy required during the assembly of the charging plug is higher, and the assembly difficulty of each part is improved.

Taking the oil dispensing of the charging plug as an example, the charging plug generally comprises a housing, a rotating shaft, a bracket and a converting head, and in order to make the connection of the rotating shaft, the bracket, the converting head and the housing flexible and stable, higher requirements on the structural assembly precision and the firmness of the charging plug are required. However, most charging plugs are assembled by manual assembly at present, and due to the fact that labor intensity of manual assembly is high, consistency is poor, implementation of modern automatic production is not facilitated, reliability of connection of the charging plugs is reduced, and assembly requirements of the charging plugs cannot be met.

Disclosure of Invention

An object of the embodiment of this application is to provide a new technical scheme of some station and charging plug are glued in some oil of assembly line of charging plug.

According to a first aspect of the embodiments of the present application, there is provided an oil dispensing station of an assembly line of a charging plug, the oil dispensing station including:

an oil dispensing device and a glue dispensing device;

the oil dispensing device is configured to dispense oil to a first position and a second position in a shell of the charging plug and two ends of a connecting shaft of the charging plug, so that the two ends of the connecting shaft are respectively and rotatably connected to the first position and the second position;

the dispensing device is configured to dispense glue in the shell of the charging plug to form a first dispensing position and a second dispensing position, so that the bracket of the charging plug is fixed at the first dispensing position in the shell through the opening of the shell, and the conversion head of the charging plug is fixed at the second dispensing position in the shell through the opening of the shell;

the oil dispensing device comprises a fixed oil cylinder and a movable oil cylinder, wherein the fixed oil cylinder and the movable oil cylinder are configured to dispense oil at two oil dispensing positions simultaneously;

the point oil position comprises a first position, a second position and two ends of the connecting shaft.

Optionally, the movable oil cylinder is a three-axis movable oil cylinder or a four-axis movable oil cylinder.

Optionally, the dispensing device comprises a dispensing track and a dispensing machine, the dispensing track comprises a first dispensing track and a second dispensing track which are mutually parallel, the dispensing machine comprises a three-axis dispensing machine a, a four-axis dispensing machine a and a four-axis dispensing machine B which are arranged on the first dispensing track, and a three-axis dispensing machine B, a four-axis dispensing machine C and a four-axis dispensing machine D which are arranged on the second dispensing track;

the three-axis dispensing machine A and the three-axis dispensing machine B are configured to dispense glue at a first glue dispensing position in a housing of the charging plug;

four-axis point gum machine A, four-axis point gum machine B, four-axis point gum machine C and four-axis point gum machine D are configured to the second point in the shell of charging plug and glue the position and carry out the point and glue.

Optionally, the first dispensing positions are linearly distributed.

Optionally, the second dispensing positions are distributed in a bent shape.

Optionally, the bent shape includes one of an inverted L shape, an inverted T shape, and an inverted U shape.

Optionally, the dispensing device further comprises a CCD detection component configured to detect a dispensing state of the dispensing machine.

Optionally, still include the frock, the frock include the bottom plate with set up in locating piece on the bottom plate, the locating piece includes fixed block and ejector pad, the fixed block is fixed set up in on the bottom plate, be provided with in the fixed block and hold the chamber, be provided with the through-hole on two at least lateral walls that hold the chamber, the ejector pad slide set up in the bottom plate, and can pass through the through-hole is right it fixes a position to hold the shell of intracavity.

Optionally, an avoiding protrusion is arranged on the side surface of the bottom plate.

According to a first aspect of the embodiment of the application, a charging plug is provided, and the charging plug is assembled by adopting the first aspect of an oil and glue dispensing station of an assembly line of the charging plug.

Optionally, the charging plug includes a housing, a rotating shaft, a bracket and a converter, and one side of the housing is open;

the rotating shaft comprises a first pin, a second pin and a connecting shaft for connecting the first pin and the second pin, a first through groove and a second through groove are formed in the shell, the connecting shaft is connected into the shell, the first pin and the second pin extend out of the shell from the first through groove and the second through groove respectively, the first pin is in running fit with the first through groove, and the second pin is in running fit with the second through groove.

One technical effect of the embodiment of the application is as follows:

the embodiment of the application provides a station is glued to point oil of assembly line of charging plug, the station is glued to point oil is including some oily device and some mucilage binding. The utility model provides a station is glued to some oil point of charging plug's assembly line some oil device can carry out some oil to the both ends of the first position in charging plug's the shell, second position and charging plug's connecting axle, some adhesive device can glue in charging plug's shell and form first some glue position and second point and glue the position to improve the pivot and glue the stability of fixing in the shell for shell pivoted flexibility, and support and conversion head.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic view of an oil and glue dispensing station of an assembly line of a charging plug according to an embodiment of the present disclosure;

fig. 2 is a schematic view of an oil dispensing operation flow of an oil dispensing station of an assembly line of a charging plug according to an embodiment of the present disclosure;

fig. 3 is a schematic view of a dispensing operation flow of a dispensing station of an assembly line of a charging plug according to an embodiment of the present disclosure;

fig. 4 is a schematic view of a first glue dispensing position in a housing of a glue dispensing station of an assembly line of a charging plug according to an embodiment of the present disclosure;

fig. 5 is a schematic view of a second dispensing position in a housing of an oil dispensing and glue dispensing station of an assembly line of a charging plug according to an embodiment of the present disclosure;

fig. 6 is a schematic tool diagram of an oil and glue dispensing station of an assembly line of a charging plug according to an embodiment of the present disclosure;

fig. 7 is a tooling top view of an oil and glue dispensing station of an assembly line of a charging plug according to an embodiment of the present disclosure;

fig. 8 is a schematic view of a charging plug of an oil and glue dispensing station of an assembly line of the charging plug according to an embodiment of the present application.

Wherein:

21-point oil device; 211-fixed oil cylinder; 212-moving the oil cylinder; 22-a glue dispensing device; 221-a first dispensing track; 222-a second dispensing track; 223-a triaxial dispenser a; 224-four-axis dispenser A; 225-four-axis dispenser B; 226-three-axis dispenser B; 227-four-axis dispenser C; 228-four-axis dispenser D; 229-a CCD detection assembly;

100-a base plate; 101-fixing block; 102-a push block; 103-avoiding the protrusion.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1 to 8, an embodiment of the present application provides an oil dispensing station of an assembly line of a charging plug, where the charging plug assembled by the oil dispensing station includes a housing, a rotating shaft, a bracket, and a conversion head, where one side of the housing is open, the rotating shaft includes a first pin, a second pin, and a connecting shaft connecting the first pin and the second pin, the housing is provided with a first through groove and a second through groove, the connecting shaft is connected in the housing, the first pin and the second pin respectively extend out of the housing from the first through groove and the second through groove, and the first pin is rotatably fitted to the first through groove, the second pin is rotatably fitted to the second through groove, and the oil dispensing station includes:

an oil dispensing device 21 and a glue dispensing device 22.

The oil dispensing device 21 is configured to dispense oil to a first position, a second position and two ends of the connecting shaft in the housing, so that the two ends of the connecting shaft are respectively rotatably connected to the first position and the second position, thereby improving the flexibility of the rotating shaft rotating relative to the housing;

the dispensing device 22 is configured to dispense glue in the housing of the charging plug to form a first dispensing position and a second dispensing position, so that the bracket is fixed in the first dispensing position in the housing through the opening, and the conversion head is fixed in the second dispensing position in the housing through the opening, thereby improving the stability of the bracket and the conversion head being adhesively fixed in the housing.

Specifically, since the rotating shaft needs to be rotatably connected to the housing, and the rotating shaft needs to be rotated for multiple times in the process of frequent use of the charging plug, for example, when charging is needed through the charging plug, the rotating shaft can be rotated until the first pin and the second pin respectively extend out of the housing from the first through groove and the second through groove, so that the charging convenience of the charging plug is improved; when the charging plug is used, the rotating shaft can be rotated to enable the first pin and the second pin to be respectively accommodated in the first through groove and the second through groove. After the oil dispensing device 21 performs the oil dispensing operation on the first position, the second position and the two ends of the connecting shaft, lubricating oil can be dripped into the first position, the second position and the two ends of the connecting shaft through the oil dispensing device 21, so as to improve the smoothness of the rotation of the rotating shaft relative to the shell.

The embodiment of the application provides charge plug's assembly line's some oil point glues the station and includes some oily device 21 and some mucilage binding 22, some oily device 21 can be right first position in the shell, the second position with the both ends of connecting axle are gone on some oil, some mucilage binding 22 can be right first some point in the shell is glued the position and carry out some glue with the second point, in order to improve the pivot for shell pivoted flexibility, and the support with the conversion head bonds and fixes stability in the shell. In addition, when the charging plug is used, the equipment to be charged needs to be connected to the conversion head, and the pins of the rotating shaft can be inserted into the jacks of the socket or the plug board, so that the charging operation of the equipment to be charged is realized.

Alternatively, referring to fig. 1 and 2, the oil dispensing device 21 includes a fixed oil cylinder 211 and a movable oil cylinder 212, and the fixed oil cylinder 211 and the movable oil cylinder 212 are configured to dispense oil at two dispensing positions at the same time;

the point oil level is set to the first position, the second position and both ends of the connecting shaft.

Specifically, the fixed oil cylinder 211 and the movable oil cylinder 212 are both provided with oil dispensing heads, and the number of the oil dispensing heads on each fixed oil cylinder 211 and each movable oil cylinder 212 may be one or more according to the number of the dispensing points at each dispensing position. In a specific embodiment, taking two sets of the casings as an example, one set of the casings has the first position, and the other set of the casings has the second position, and for the first position and the second position to simultaneously dispense oil, the dispensing head of the fixed oil cylinder 211 may be aligned with the first position, and then the movable oil cylinder 212 may be horizontally and vertically moved to align the movable oil cylinder 212 with the second position, so as to dispense oil for two dispensing positions at the same time, thereby completing the dispensing for the X position shown in fig. 2; similarly, it is also possible to perform the oil spotting at the Y position shown in fig. 2, and then flow the two sets of the housings into the passage a and the passage b, respectively, to improve the oil spotting efficiency of the oil spotting device 21.

Optionally, the movable oil cylinder 212 is a three-axis movable oil cylinder or a four-axis movable oil cylinder.

Specifically, in order to allow the fixed oil cylinder 211 and the movable oil cylinder 212 to simultaneously perform oil dispensing at two oil dispensing positions, the efficiency of the oil dispensing device 21 is improved. For two oil positions with different positions and different distances, the moving flexibility of the movable oil cylinder 212 is directly related to the accuracy and efficiency of the two oil positions at the same time. Under the condition that the movable oil cylinder 212 is a three-axis movable oil cylinder, the three-axis movable oil cylinder can move in any one axis or in a multi-axis combined direction in a three-axis coordinate system, so that the movable oil cylinder 212 can perform oil dispensing operation on any position in space where essential oil is needed; further, in the case that the movable oil cylinder 212 is a four-axis movable oil cylinder, the four-axis movable oil cylinder can rotate and turn over in addition to moving in any one axis or multi-axis combined direction in a three-axis coordinate system, so that the movable oil cylinder 212 can perform oil dispensing operation in each direction for any position in space where oil is needed, such as oil dispensing from top to bottom or oil dispensing from bottom to top, or oil dispensing from left to right or oil dispensing from right to left.

Optionally, referring to fig. 3 to 5, the dispensing device 22 includes a dispensing track and a dispensing machine, the dispensing track includes a first dispensing track 221 and a second dispensing track 222, which are juxtaposed to each other, the dispensing machine includes a three-axis dispensing machine a223, a four-axis dispensing machine a224 and a four-axis dispensing machine B225 disposed on the first dispensing track 221, and a three-axis dispensing machine B226, a four-axis dispensing machine C227 and a four-axis dispensing machine D228 disposed on the second dispensing track 222;

the three-axis dispenser A223 and the three-axis dispenser B226 are configured to dispense a first dispensing location within the housing;

the four-axis dispenser a224, the four-axis dispenser B225, the four-axis dispenser C227, and the four-axis dispenser D228 are configured to dispense a second dispensing position in the housing.

Specifically, the first dispensing track 221 and the second dispensing track 222 are arranged in parallel, so that on one hand, the dispensing efficiency of the dispensing device 22 can be improved, and on the other hand, when one of the first dispensing track 221 and the second dispensing track 222 is in a maintenance or other shutdown state, the other dispensing track can still ensure dispensing of the first dispensing position and the second dispensing position in the housing, and stable operation of the dispensing device 22 is improved.

Alternatively, referring to fig. 4, the first glue applying positions are linearly arranged.

Specifically, first point gum position in the shell does the support with the hookup location of shell, because the support stretches into completely in the shell, first point gum position can be linear strip point gum position, as shown in fig. 4, this moment triaxial point gum machine A223 with triaxial point gum machine B226 can be respectively one first point gum position A carries out the point gum, in order to improve triaxial point gum machine A223 with triaxial point gum machine B226's point gum efficiency, triaxial point gum machine A223 with triaxial point gum machine B226 can be double-needle point gum machine.

Optionally, referring to fig. 5, the second dispensing positions are distributed in a bent shape.

Specifically, because the position is glued to the second point in the shell does the conversion head with the hookup location of shell, the connection stability direct relation of conversion head to outside charging equipment with this application the accuracy that charging plug connects, and the distribution of buckling the position is glued to the second point can give the conversion head provides stable connection in a plurality of directions, guarantees the conversion head with the connection of shell is stable.

Specifically, the bent shape includes one of an inverted L shape, an inverted T shape, and an inverted U shape. Because the conversion head is arranged at the opening of the shell, the connection strength between the conversion head and the shell can be effectively improved by the second dispensing positions in the bending shapes of L shape, inverted T shape, inverted U shape and the like. In a specific embodiment, as shown in fig. 5, the second dispensing position B is a reverse L-shaped dispensing glue. At this moment, the four-axis dispensing machine a224 and the four-axis dispensing machine B225 need to respectively carry out dispensing operation to vertical and horizontal dispensing positions to accomplish jointly the dispensing of the second dispensing position, similarly, the four-axis dispensing machine C227 and the four-axis dispensing machine D228 need to accomplish jointly the dispensing of the second dispensing position. In addition, four-axis point gum machine A224 four-axis point gum machine B225, four-axis point gum machine C227 and four-axis point gum machine D228 can be single syringe needle point gum machine to guarantee the position accuracy of point gluing.

Optionally, referring to fig. 1 and 3, the dispensing device 22 further includes a CCD detecting component 229, and the CCD detecting component 229 is configured to detect a dispensing state of the dispenser.

Specifically, when the dispensing device 22 performs dispensing on the first dispensing position and the second dispensing position, most dispensing operations are accurate, i.e., the dispensing state is normal. However, abnormal dispensing states may also exist, such as a no-dispensing state, a low-dispensing state, a high-dispensing state, a single-dispensing state when multiple dispensing is required, a glue wire state, or a bias state, and these abnormal dispensing states may be accurately measured by the CCD detecting component 229, for example, by a CCD (Charge-coupled Device) detector, so that the dispensing states of the first dispensing position and the second dispensing position may be ensured, and the structural stability and reliability of the integral connection of the bracket, the conversion head, and the housing may be improved.

Optionally, referring to fig. 6 and 7, the oil dispensing and glue dispensing station further includes a tool, the tool includes a bottom plate 100 and a positioning block disposed on the bottom plate 100, the positioning block includes a fixing block 101 and a pushing block 102, the fixing block 101 is fixedly disposed on the bottom plate 100, a containing cavity is disposed in the fixing block 101, through holes are disposed on at least two side walls of the containing cavity, the pushing block 102 is slidably disposed on the bottom plate 100, and the shell in the containing cavity can be positioned through the through holes.

Specifically, referring to fig. 6, the fixing block 101 may be a hollow square structure, each side of the fixing block 101 is provided with the through hole, and the fixing block 101 may be made of a polymer material such as PEEK (polyether ether ketone); the material of the push block 102 may be a polymer material such as POM (polyoxymethylene), the push block 102 may be slidably disposed on the bottom plate 100 through a rail, and a guide rail may apply an elastic force to the push block 102 close to the fixed block 101, so as to ensure the positioning stability of the positioning block to the housing.

In addition, referring to fig. 7, the number of the push blocks 102 is two, one push block 102 extends from a left through hole on the fixed block 101, and can push the housing in the accommodating cavity into a right positioning surface of the fixed block 101, and the other push block 102 extends from a lower through hole on the fixed block 101, and can push the housing in the accommodating cavity into an upper positioning surface of the fixed block 101. In order to avoid scratching the housing when the fixed block 101 and the push block 102 abut against the housing, the fixed block 101 and the push block 102 may be made of a relatively soft polymer material, more importantly, the housing in the accommodating cavity further needs to have a second gap of 0.3-0.5mm, preferably 0.4mm, with the upper positioning surface, and the housing in the accommodating cavity further needs to have a first gap of 0.1-0.2mm, preferably 0.15mm, with the right positioning surface, so as to ensure the appearance integrity of the housing after clamping and positioning.

Optionally, referring to fig. 6, the side surface of the bottom plate 100 is provided with an avoidance protrusion 103.

Specifically, the avoiding protrusion 103 may be disposed on one side of the bottom plate 100, or may be disposed on a plurality of sides of the bottom plate 100, the quantity of the avoiding protrusion on each side may be one or more, and the avoiding protrusion may be made of a soft polymer material such as polyurethane. When collision between a plurality of tools on the production line can be caused by the arrangement of the avoiding protrusion 103, adjacent tools cannot be in direct contact, and the integrity of the shell, the rotating shaft, the bracket and the conversion head is also ensured.

Referring to fig. 8, an embodiment of the present application further provides a charging plug, and the charging plug is assembled by using an oil and glue dispensing station of an assembly line of the charging plug.

When the charging plug is used, the plug connected with the charging equipment can be inserted into the first conversion hole and the second conversion hole of the conversion head, so that the connection between the first elastic sheet and the second elastic sheet of the conversion head is realized, the charging plug passes through the first pin and the second pin of the rotating shaft, so that the charging operation of the charging equipment is realized.

Alternatively, referring to fig. 8, the charging plug includes a housing, a rotating shaft, a bracket and a conversion head, wherein one side of the housing is open;

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. The utility model provides a station is glued to point oil of assembly line of charging plug which characterized in that, the station is glued to point oil includes:

an oil dispensing device (21) and a glue dispensing device (22);

the oil dispensing device (21) is configured to dispense oil to a first position and a second position in the shell of the charging plug and two ends of the connecting shaft of the charging plug, so that the two ends of the connecting shaft are respectively and rotatably connected to the first position and the second position;

the glue dispensing device (22) is configured to form a first glue dispensing position and a second glue dispensing position in the shell of the charging plug in a glue dispensing mode, so that the support of the charging plug is fixed at the first glue dispensing position in the shell through the opening of the shell, and the conversion head of the charging plug is fixed at the second glue dispensing position in the shell through the opening of the shell;

the oil dispensing device (21) comprises a fixed oil cylinder (211) and a movable oil cylinder (212), wherein the fixed oil cylinder (211) and the movable oil cylinder (212) are configured to dispense oil at two oil dispensing positions simultaneously;

the point oil position comprises a first position, a second position and two ends of the connecting shaft;

the glue dispensing device (22) comprises a glue dispensing track and a glue dispensing machine, the glue dispensing track comprises a first glue dispensing track (221) and a second glue dispensing track (222) which are mutually parallel, the glue dispensing machine comprises a four-axis glue dispensing machine A (224) and a four-axis glue dispensing machine B (225) which are arranged on the first glue dispensing track (221), and a four-axis glue dispensing machine C (227) and a four-axis glue dispensing machine D (228) which are arranged on the second glue dispensing track (222);

four-axis point gum machine A (224), four-axis point gum machine B (225), four-axis point gum machine C (227) and four-axis point gum machine D (228) are configured to and carry out some glue to the second point in charging plug's the shell and put the point, the second point is glued the position and is buckled the form and distribute.

2. An oil and glue dispensing station according to claim 1, characterised in that said mobile oil cylinder (212) is a three-axis mobile oil cylinder or a four-axis mobile oil cylinder.

3. The dispensing station of claim 1, wherein the dispenser comprises a three-axis dispenser a (223) disposed on the first dispensing track (221) and a three-axis dispenser B (226) disposed on the second dispensing track (222);

the tri-axial dispenser a (223) and the tri-axial dispenser B (226) are configured to dispense a first dispensing location within a housing of a charging plug.

4. An oil and glue dispensing station as claimed in claim 3, wherein the first glue dispensing locations are arranged in a straight line.

5. The oil and glue dispensing station of claim 1, wherein the bent shape comprises one of an inverted L-shape, an inverted T-shape, and an inverted U-shape.

6. A dispensing station according to claim 3, characterized in that said dispensing device (22) further comprises a CCD detection assembly (229), said CCD detection assembly (229) being configured to detect a dispensing state of said dispenser.

7. The oil and glue dispensing station according to claim 1, further comprising a tool, wherein the tool comprises a bottom plate (100) and a positioning block arranged on the bottom plate (100), the positioning block comprises a fixing block (101) and a pushing block (102), the fixing block (101) is fixedly arranged on the bottom plate (100), a containing cavity is arranged in the fixing block (101), through holes are formed in at least two side walls of the containing cavity, and the pushing block (102) is slidably arranged on the bottom plate (100) and can position a shell in the containing cavity through the through holes.

8. Oil and glue dispensing station according to claim 7, characterised in that the side of the base plate (100) is provided with an escape protuberance (103).

9. A charging plug, characterized in that the charging plug is assembled by adopting an oil and glue dispensing station of an assembly line of the charging plug according to any one of claims 1 to 8.

10. The charging plug of claim 9, wherein the charging plug comprises a housing, a rotating shaft, a bracket and a conversion head, wherein one side of the housing is open;