Gold removing clamp for side insertion type shell

Abstract

The utility model relates to a gold removing clamp for a side insertion type shell, and relates to the field of gold removing clamps. Comprising two base supports, a plurality of base partition plates, a plurality of supporting blocks and a plurality of gold removing supports, the two base supports are arranged in parallel, the base partition plates are arranged on the two base supports at intervals, a station is formed between every two adjacent base partition plates, and the supporting blocks are installed on the two base supports on the two sides of the stations. The multiple gold removing supports are rotatably arranged in the station, the two ends of each gold removing support are connected with the supporting blocks on the two sides of the station in a one-to-one correspondence mode, and the side insertion type shell is installed on the gold removing supports in a matched mode. The metal removing device is beneficial to solving the problem that the side-inserting type shell cannot be inclined for metal removing, metal removing of the side-inserting type shell is more efficient and reliable, the possibility that pins become thick is reduced, a plurality of stations are matched with a plurality of metal removing supports, and the metal removing device is beneficial to being matched with selective wave-soldering equipment for use. And automatic gold removing operation on multiple types and a large number of side insertion type shells at a time is achieved.

Description

Technical Field

[0001] The utility model relates to the field of gold removal fixtures, in particular to a gold removal fixture for a side-insertion type housing. Background Art

[0002] In hybrid integrated circuits, gold removal from the pins inside the housing is primarily done manually with a soldering iron. Automated gold removal can be achieved for straight-insert housings using selective wave soldering equipment and corresponding fixtures. However, fixture processing for side-insert housings presents certain challenges. First, due to the shape of the side-insert housing, the fixture design requires side holes. However, from a fixture processing perspective, tooling with multiple rows of side holes is difficult to manufacture and has low machinability. Second, the fixture is difficult to process at an angle. A horizontal fixture will keep the housing pins level, making it difficult for the tin on the pins to fall off during the gold removal process. This ultimately causes the pins to thicken and the housing to become impossible to demold. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a metal removal fixture for a side-insertion type housing to solve the above-mentioned problem.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: A gold removal fixture for a side-plug type shell, comprising: two base brackets, multiple base partitions, multiple support blocks and multiple gold removal brackets, the two base brackets are arranged in parallel, the multiple base partitions are arranged at intervals on the two base brackets, a work station is formed between two adjacent base partitions, the support blocks are installed on the two base brackets on both sides of the work station, the multiple gold removal brackets are rotatably arranged in the work station, the two ends of the gold removal bracket are connected to the support blocks on both sides of the work station in a one-to-one manner, and the side-plug type shell is adapted to be installed on the gold removal bracket.

[0005] The beneficial effects of the present invention are as follows: the gold removal bracket can be rotatably arranged in the work station, and the side-plug-in type shell is adaptively installed on the gold removal bracket, which solves the problem that the side-plug-in type shell cannot be tilted for gold removal, makes the gold removal of the side-plug-in type shell more efficient and reliable, reduces the possibility of the pin becoming thicker, and facilitates the demolding of the side-plug-in type shell. Multiple work stations are matched with multiple gold removal brackets, which is conducive to use with selective wave soldering equipment, and realizes the automated gold removal operation of multiple types and quantities of side-plug-in type shells at one time.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Further, the gold removing support comprises a mounting plate, a plurality of gold removing boxes, a plurality of support walls, two connecting shafts and two knobs; the two connecting shafts are arranged at the two ends of the mounting plate one by one, the two knobs are rotatably arranged at the ends of the two connecting shafts away from the mounting plate one by one, and the plurality of support walls and the plurality of gold removing boxes are alternately arranged on the mounting plate.

[0008] The beneficial effect of the above further scheme is that the support walls and the gold removing boxes are alternately arranged, which is beneficial to avoid the bending between the two adjacent gold removing boxes on the mounting plate after the cover is set on the side-insert type shell, and improves the overall strength; the knobs are rotatably connected with the connecting shafts, which is beneficial to tighten the knobs and press the side wall of the support block after the gold removing support is adjusted to the required angle in the support groove, and then the gold removing support is fixed.

[0009] Further, the mounting plate is a long strip-shaped U-shaped plate body structure, the two connecting shafts are arranged on the vertical segment plates at the two ends of the mounting plate one by one, and the plurality of support walls and the plurality of gold removing boxes are alternately arranged on the horizontal segment plate in the middle of the mounting plate.

[0010] The beneficial effect of the above further scheme is that a plurality of support walls and a plurality of gold removing boxes can be installed, and then a plurality of side-insert type shells can be installed on one gold removing support, thereby improving the gold removing efficiency.

[0011] Further, the two side walls of the gold removing box perpendicular to the direction of the connecting shaft are provided with a plurality of pin perforations, and the plurality of pin perforations on the two side walls are one-to-one through holes.

[0012] The beneficial effect of the above further scheme is that the pin perforations are beneficial to fix the shell pins in the side-insert type shell, and then the side-insert type shell can be stably covered on the gold removing box.

[0013] Further, the side-insert type shell comprises a shell body and a plurality of shell pins, the plurality of shell pins are correspondingly inserted on the two side walls of the shell body, the shell body is covered on the gold removing box, and the plurality of shell pins on one side wall of the shell body are one-to-one inserted into the plurality of pin perforations on one side wall of the gold removing box.

[0014] The beneficial effect of the above further scheme is that when the gold removing support is rotated and inclined, the side-insert type shell can also be stably covered on the gold removing box, and the tin on the shell pin falls under the action of gravity in the process of selectively wave soldering equipment for gold removing operation of the shell pin.

[0015] Further, the connecting shaft comprises a connecting shaft, a limiting plate and a threaded column; one end of the connecting shaft is connected with the side wall of the mounting plate, the limiting plate is arranged on the peripheral surface of the connecting shaft, and the threaded column is arranged on the side of the connecting shaft away from the mounting plate and is threadedly connected with the knob.

[0016] The beneficial effect of the further scheme is that the limiting plate is beneficial to limiting the rotation angle of the gold removing support, and the threaded column is threadedly connected with the knob, thereby being beneficial to tightening the knob and pressing the side wall of the supporting block after the gold removing support is adjusted to the required gold removing angle in the supporting groove, and then fixing the gold removing support.

[0017] Further, the supporting block is provided with a supporting groove and two limiting surfaces; the supporting groove is in an arc-shaped groove structure, the two limiting surfaces are correspondingly and obliquely arranged on the two sides of the supporting groove, the connecting shaft is adaptively and rotatably arranged in the supporting groove, and the limiting plate is abutted with the limiting surface when the connecting shaft rotates to the limiting position.

[0018] The beneficial effect of the further scheme is that the connecting shaft is adaptively and rotatably arranged in the supporting groove, thereby being beneficial to stably adjusting the gold removing angle of the gold removing support, and the limiting plate is abutted with the limiting surface, thereby indicating that the gold removing support is rotated to the preset maximum rotation angle.

[0019] Further, the knob is provided with a threaded hole near one end of the connecting shaft, and the threaded hole is threadedly connected with the threaded column.

[0020] The beneficial effect of the further scheme is that the threaded hole is threadedly connected with the threaded column, thereby being beneficial to adjusting the distance between the knob and the side wall of the supporting block, and then realizing the clamping and loosening of the gold removing support.

[0021] Further, the knob is further provided with a scale, and the scale is arranged around the end of the knob away from the connecting shaft.

[0022] The beneficial effect of the further scheme is that the scale is beneficial to assisting in adjusting the rotation angle of the gold removing support. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A schematic view of a side insertion type shell mounted on a gold removing support is provided for the embodiment of the utility model;

[0024] Figure 2 A structural schematic view of a base support, a base partition plate and a supporting block is provided for the embodiment of the utility model;

[0025] Figure 3 A structural schematic view of a gold removing support is provided for the embodiment of the utility model;

[0026] Figure 4 A cross-sectional view of a side-insertion type housing cover provided in an embodiment of the present utility model, provided on a gold removal box body;

[0027] Figure 5 A detailed diagram of the connection between the rotating shaft and the knob provided in an embodiment of the present utility model;

[0028] Figure 6 A side view of a knob provided in an embodiment of the present invention;

[0029] Figure 7 This is a schematic structural diagram of a side-insertion housing provided in an embodiment of the present utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1. Base bracket; 2. Base partition; 3. Work station; 4. Support block; 5. Gold removal bracket; 6. Side-insertion housing; 41. Support groove; 42. Limiting surface; 51. Mounting plate; 52. Gold removal box; 53. Support wall; 54. Connecting shaft; 55. Knob; 61. Housing; 62. Housing pin; 521. Pin hole; 541. Connecting shaft; 542. Limiting plate; 543. Threaded column; 551. Threaded hole; 552. Scale. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] like Figure 1 As shown, a gold removal fixture for a side-plug type shell includes: two base supports 1, multiple base partitions 2, multiple support blocks 4 and multiple gold removal supports 5, the two base supports 1 are arranged in parallel, the multiple base partitions 2 are arranged at intervals on the two base supports 1, a work station 3 is formed between two adjacent base partitions 2, the support blocks 4 are installed on the two base supports 1 on both sides of the work station 3, the multiple gold removal supports 5 are rotatably arranged in the work station 3, the two ends of the gold removal support 5 are connected one-to-one with the support blocks 4 on both sides of the work station 3, and the side-plug type shell 6 is adapted to be installed on the gold removal support 5.

[0034] It should be noted that in the technical solution of the present invention, the material of the entire gold removal fixture can be aluminum, steel or other solder resist materials, and the entire gold removal fixture can be hard-oxidized to enhance its solder resistance.

[0035] The beneficial effects of the present invention are as follows: the gold removal bracket can be rotatably arranged in the work station, and the side-plug-in type shell is adaptively installed on the gold removal bracket, which solves the problem that the side-plug-in type shell cannot be tilted for gold removal, makes the gold removal of the side-plug-in type shell more efficient and reliable, reduces the possibility of the pin becoming thicker, and facilitates the demolding of the side-plug-in type shell. Multiple work stations are matched with multiple gold removal brackets, which is conducive to use with selective wave soldering equipment, and realizes the automated gold removal operation of multiple types and quantities of side-plug-in type shells at one time.

[0036] Preferably, Figure 3 As shown, the gold removal bracket 5 includes: a mounting plate 51, a plurality of gold removal boxes 52, a plurality of support walls 53, two connecting shafts 54 and two knobs 55; the two connecting shafts 54 are arranged one-to-one at both ends of the mounting plate 51, and the two knobs 55 are rotatably arranged one-to-one at one end of the two connecting shafts 54 away from the mounting plate 51, and the plurality of support walls 53 and the plurality of gold removal boxes 52 are alternately arranged on the mounting plate 51.

[0037] The beneficial effects of adopting the above-mentioned preferred scheme are: the supporting walls and the gold removal boxes are arranged alternately, which is beneficial to avoid bending between the two adjacent gold removal boxes on the mounting plate after the side plug-in shell is installed, thereby improving the overall strength; the knob is rotatably connected to the connecting shaft, which is beneficial to adjust the gold removal bracket to the required angle in the support groove, then tighten the knob and press it against the side wall of the support block, thereby fixing the gold removal bracket.

[0038] Preferably, Figure 3 As shown, the mounting plate 51 is a long U-shaped plate structure, the two connecting shafts 54 are arranged one by one on the vertical section plates at both ends of the mounting plate 51, and the multiple supporting walls 53 and the multiple gold removal boxes 52 are alternately arranged on the horizontal section plate in the middle of the mounting plate 51.

[0039] It should be noted that: in the technical solution of the present utility model, the description of the vertical section and the horizontal section of the mounting plate 51 is based on the attached Figure 3 In the state shown, the gold removing bracket 5 is placed horizontally. When the gold removing bracket 5 rotates, the vertical section and the horizontal section of the mounting plate 51 are not absolutely vertical sections and horizontal sections.

[0040] The beneficial effect of adopting the above preferred solution is that it is conducive to installing multiple supporting walls and multiple gold removal boxes, so that multiple side-insertion shells can be installed on one gold removal bracket, thereby improving the gold removal efficiency.

[0041] Preferably, Figure 3 As shown, the two side walls of the gold removal box 52 perpendicular to the direction of the connecting shaft 54 ​​are provided with a plurality of pin through holes 521, and the plurality of pin through holes 521 on the two side walls are one-to-one corresponding through holes.

[0042] The beneficial effect of adopting the above preferred solution is that the pin perforation is conducive to fixing the shell pins in the side-insertion type shell, thereby enabling the side-insertion type shell to be stably covered on the gold removal box.

[0043] Preferably, Figure 4 and Figure 7 As shown, the side-plug type shell 6 includes a shell 61 and a plurality of shell pins 62, and the plurality of shell pins 62 are respectively inserted on the two side walls of the shell 61. The shell 61 is covered on the gold removal box 52, and the plurality of shell pins 62 on one of the side walls of the shell 61 are respectively inserted into the plurality of pin through-holes 521 on one of the side walls of the gold removal box 52.

[0044] The beneficial effect of adopting the above-mentioned preferred scheme is that when the gold removal bracket is rotated and tilted, the side-insertion type shell can also be stably covered on the gold removal box body, and at the same time, it is convenient for the selective wave soldering equipment to perform gold removal operations on the shell pins, and the tin on the shell pins falls under the action of gravity.

[0045] Preferably, Figure 5 As shown, the connecting shaft 54 ​​includes: a connecting shaft 541, a limiting plate 542 and a threaded column 543; one end of the connecting shaft 541 is connected to the side wall of the mounting plate 51, the limiting plate 542 is arranged on the circumferential surface of the connecting shaft 541, and the threaded column 543 is arranged on the side of the connecting shaft 541 away from the mounting plate 51, and is threadedly connected to the knob 55.

[0046] The beneficial effects of adopting the above-mentioned preferred scheme are: the limit plate is conducive to providing a limit for the rotation angle of the gold removal bracket, and the threaded column is threadedly connected to the knob, which is conducive to adjusting the gold removal bracket to the required gold removal angle in the support groove and then tightening the knob to press it against the side wall of the support block, thereby fixing the gold removal bracket.

[0047] Preferably, Figure 2 As shown, the support block 4 is provided with a support groove 41 and two limit surfaces 42. The support groove 41 is an arc-shaped groove structure. The two limit surfaces 42 are arranged obliquely on both sides of the support groove 41 in a one-to-one correspondence. The connecting shaft 541 is adapted and rotatably arranged in the support groove 41. When the connecting shaft 541 rotates to reach the limit position, the limit plate 542 abuts against the limit surface 42.

[0048] The beneficial effect of adopting the above-mentioned preferred scheme is that the connecting shaft is adapted and rotatably arranged in the support groove, which is conducive to the gold removal bracket being able to stably adjust the gold removal angle. When the limit plate abuts the limit surface, it indicates that the gold removal bracket is rotated to the preset maximum rotation angle.

[0049] Preferably, Figure 5 As shown, a threaded hole 551 is provided at one end of the knob 55 close to the connecting shaft 54 ​​, and the threaded hole 551 is threadedly connected to the threaded column 543 .

[0050] The beneficial effect of adopting the above preferred solution is that the threaded hole is threadedly connected to the threaded column, which is conducive to adjusting the distance between the knob and the side wall of the support block, thereby achieving the clamping and loosening of the gold removal bracket.

[0051] Preferably, Figure 6 As shown, the knob 55 is further provided with a scale 552 , and the scale 552 is arranged around the end of the knob 55 away from the connecting shaft 54 ​​.

[0052] The beneficial effect of adopting the above preferred solution is that the scale is helpful in assisting in adjusting the rotation angle of the gold removal bracket.

[0053] The working process of the utility model is introduced below:

[0054] like Figures 1 to 7 As shown, first rotate the gold removal bracket 5 in the support groove 41 to the required gold removal angle, then tighten the knob 55, press the knob 55 against the side wall of the support block 4, and thereby fix the gold removal bracket 5 in the work station 3 at the required gold removal angle; then pass the shell pin 62 through the pin through-hole 521 in an inclined posture, so that the side-plug-type shell 6 is covered on the gold removal box 52, and under the action of gravity, the side-plug-type shell 6 will be set close to the outer wall of the gold removal box 52; then place the entire device on the track of the selective wave soldering equipment, and use the selective wave soldering equipment to remove gold from the shell pin 62.

[0055] The utility model has the following advantages:

[0056] The entire gold removal fixture is detachable, making the gold removal bracket machinable;

[0057] For different models of side-insertion housings, only different gold removal brackets need to be designed, without the need to replace the gold removal base, thus reducing costs;

[0058] The assembled gold removal fixture can be used with selective wave soldering equipment to remove gold, realizing automated batch gold removal operations;

[0059] The gold removal fixture has solder resistance, which prevents the shell from being unable to be demoulded due to tin bridging;

[0060] The gold removal bracket has a gold removal box with a side opening (or slot). The size of the gold removal box matches the side-insertion type housing, so that the housing pins of the side-insertion type housing can be embedded in the opening (or slot). During gold removal, the gold removal box can effectively protect the inner wall of the housing from being tinned.

[0061] A support wall is designed between the gold removal boxes of the gold removal bracket to prevent the gold removal bracket from deformation;

[0062] The gold removal bracket is rotatable, so that the shell pins of the side-insertion shell are facing downward during gold removal, which promotes the gathering and dripping of tin attached to the shell pin surface and reduces the possibility of the shell pin becoming thicker;

[0063] The gold removal bracket has a limit plate to prevent the side-insertion housing from falling due to excessive rotation angle, and also plays an anti-collision role during the installation of the gold removal bracket and the gold removal base;

[0064] The gold removal bracket has a threaded knob that can adjust the rotation angle of the gold removal bracket within a certain range and lock it to meet the gold removal requirements of different models of side-insertion housings;

[0065] After the gold removal bracket rotates, the side-insertion housing can slide relative to the gold removal box under the action of gravity. After sliding, the housing pins inside the side-insertion housing are all exposed without additional adjustment. At this time, the center of gravity of the side-insertion housing is biased towards the connecting shaft of the gold removal bracket. The torque generated counteracts the resistance of the limit plate or knob, thereby ensuring overall stability. The side-insertion housing will not shift during the gold removal process.

[0066] The knob of the gold removal bracket has a scale to assist in adjusting the angle.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0069] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element internals or the interaction of two elements, unless another definite limitation.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0070] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly contacted through intermediate medium.Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than that of the second feature.The first feature "under", "below" and "on" the second feature can be that the first feature is directly below or obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than that of the second feature.

[0071] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0072] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and the skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.

Claims

1. A gold removal fixture for a side-insertion type housing, characterized in that: include: Two base supports (1), a plurality of base partitions (2), a plurality of support blocks (4) and a plurality of gold removal supports (5), the two base supports (1) are arranged in parallel, the plurality of base partitions (2) are arranged at intervals on the two base supports (1), a work station (3) is formed between two adjacent base partitions (2), the support blocks (4) are installed on the two base supports (1) on both sides of the work station (3), the plurality of gold removal supports (5) are rotatably arranged in the work station (3), the two ends of the gold removal support (5) are connected to the support blocks (4) on both sides of the work station (3) in a one-to-one correspondence, and a side plug-in shell (6) is adapted to be installed on the gold removal support (5).

2. A metal removal fixture for a side-insertion type housing according to claim 1, characterized in that: The gold removal bracket (5) comprises: a mounting plate (51), a plurality of gold removal boxes (52), a plurality of support walls (53), two connecting shafts (54) and two knobs (55); the two connecting shafts (54) are arranged one-to-one at the two ends of the mounting plate (51); the two knobs (55) are rotatably arranged one-to-one at one end of the two connecting shafts (54) away from the mounting plate (51); the plurality of support walls (53) and the plurality of gold removal boxes (52) are alternately arranged on the mounting plate (51).

3. A metal removal fixture for a side-insertion type housing according to claim 2, characterized in that: The mounting plate (51) is a long U-shaped plate structure, the two connecting shafts (54) are arranged one by one on the vertical section plates at both ends of the mounting plate (51), and the plurality of supporting walls (53) and the plurality of gold removal boxes (52) are alternately arranged on the horizontal section plate in the middle of the mounting plate (51).

4. The metal removal fixture for a side-insertion type housing according to claim 2, characterized in that: The two side walls of the gold removal box (52) in a direction perpendicular to the connecting shaft (54) are both provided with a plurality of pin through holes (521), and the plurality of pin through holes (521) on the two side walls are one-to-one corresponding through holes.

5. A metal removal fixture for a side-insertion type housing according to claim 4, characterized in that: The side-insertion type shell (6) comprises a shell (61) and a plurality of shell pins (62), wherein the plurality of shell pins (62) are respectively inserted on two side walls of the shell (61), and the shell (61) is covered on the gold removal box (52). The plurality of shell pins (62) on one side wall of the shell (61) are respectively inserted into the plurality of pin through-holes (521) on one side wall of the gold removal box (52).

6. The metal removal fixture for a side-insertion type housing according to claim 2, characterized in that: The connecting shaft (54) comprises: a connecting shaft (541), a limiting plate (542) and a threaded column (543); one end of the connecting shaft (541) is connected to the side wall of the mounting plate (51), the limiting plate (542) is arranged on the circumferential surface of the connecting shaft (541), and the threaded column (543) is arranged on a side of the connecting shaft (541) away from the mounting plate (51) and is threadedly connected to the knob (55).

7. A metal removal fixture for a side-insertion type housing according to claim 6, characterized in that: The support block (4) is provided with a support groove (41) and two limiting surfaces (42); the support groove (41) is an arc-shaped groove structure; the two limiting surfaces (42) are arranged obliquely on both sides of the support groove (41) in a one-to-one correspondence; the connecting shaft (541) is adapted and rotatably arranged in the support groove (41); when the connecting shaft (541) rotates to reach the limiting position, the limiting plate (542) abuts against the limiting surface (42).

8. The metal removal fixture for a side-insertion type housing according to claim 6, characterized in that: A threaded hole (551) is provided at one end of the knob (55) close to the connecting shaft (54), and the threaded hole (551) is threadedly connected to the threaded column (543).

9. The metal removal fixture for a side-insertion type housing according to claim 6, characterized in that: The knob (55) is also provided with a scale (552), and the scale (552) is arranged around the end of the knob (55) away from the connecting shaft (54).

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