Manual PIN press-in device

Abstract

The utility model relates to the technical field of mechanical manufacturing, in particular to a manual PIN press-in device which comprises a base, a stand column, a machine head, a limiting mechanism and a handle, a part to be machined and a PIN needing to be assembled are accurately placed on the base, the limiting mechanism is controlled to align the reference size, the handle is shaken to drive a corresponding tool installed below the machine head to press the surface of the PIN, and the PIN can be assembled. And the PINs are pressed into the PIN holes of the parts, and meanwhile, the pressing size is controlled by using a limiting mechanism and a caliper at the same time, so that the assembling purpose is achieved. According to the utility model, the product characteristics of high precision and high cleanliness of IC part products are combined, and the purposes of accurate positioning and precise measurement are achieved by comprehensively improving tool materials and machining precision, perfecting matching sizes and enriching positioning structures and detection structures.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a manual PIN pressing device. Background Art

[0002] Most of the commonly used parts of IC equipment need to be installed with PINs of various sizes and specifications as positioning tools. The current mature processing method is to use a rubber hammer to knock them to meet the interference fit assembly method. Utility Model Content

[0003] In order to solve the above technical problems, the utility model discloses a manual PIN pressing device.

[0004] The specific technical solutions are as follows:

[0005] A manual PIN pressing device comprises a base, a column, a machine head, a limiting mechanism and a handle; the column is vertically installed on one side of the base, and the machine head comprises two symmetrical main bodies, which are locked by a locking screw at one end; the limiting mechanism and the handle are installed on the side of the machine head away from the column, an upper mold core is installed at the lower part of the limiting mechanism, and a replaceable chuck is installed at the bottom end of the upper mold core; the handle controls and limits the vertical downward pressing and restoring stroke of the upper mold core through a linkage component; parts to be processed and PINs to be assembled are placed on the base, and the chuck presses the PIN into the PIN hole of the parts to be processed.

[0006] The linkage assembly includes a sleeve gear, a transverse gear shaft, an upper mold core, a bellows, a cover plate, a stroke limit screw and a stroke limit nut; the transverse gear shaft is horizontally installed inside the machine head, and one end is connected to the handle, and a gear is provided in the middle of the transverse gear shaft; the sleeve gear is vertically installed inside the machine head, and one side is provided with a rack, and the rack is meshed with the gear of the transverse gear shaft; the exposed part of the upper end of the sleeve gear is sealed with the bellows by installing screws, and the upper mold core is installed at the lower end; the upper end of the bellows is fixedly installed on the lower surface of one end of the cover plate by fixing screws; the transverse gear shaft, the cover plate has a hole at the other end, the stroke limit screw is screwed into the hole and the bottom end is screwed into the upper surface of the machine head, the stroke limit nut includes two, the threaded installation is on the stroke limit screw, and is respectively located above and below the cover plate, and the distance between the two stroke limit nuts is the stroke of the upper mold core pressing down.

[0007] The base uses SUS304 stainless steel pipe as the keel bracket, flat SUS304 steel plate, welded and polished smooth without burrs, and has six sets of fixture installation holes.

[0008] The column adopts a SUS304 stainless steel shaft, with a built-in stainless steel limit clamp. An extended screw is installed on the upper part of the column to adjust the machine head up and down, and a lifting adjustment knob is installed on the top of the extended screw.

[0009] The stroke limit screw of the machine head is linked to the digital scale through a transmission piece, the sleeve gear is linked to the caliper, and the digital scale directly measures the descending stroke of the caliper to display the pressing depth of the upper mold core.

[0010] The locking screws include two pieces, which are arranged one above the other.

[0011] The cover plate is in a teardrop shape and includes a large head and a small head. The large head is installed with the bellows, and the small head is installed with the travel limit screw and the travel limit nut.

[0012] The bottom end of the upper die core is replaced with different chucks according to different part states.

[0013] The transverse gear shaft is installed horizontally through the interior of the machine head, and its two ends are connected to the two main body shafts of the machine head; the machine head also includes a limiting wheel, which is installed at the end of the transverse gear shaft away from the handle and is located on the opposite side of the handle's downward pressing direction.

[0014] The travel limit screw is a fine-pitch steel nail with a flat-ground bottom to ensure that the flatness is less than 0.01.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] The utility model press-in device accurately places the part to be processed and the PIN to be assembled on the base, controls the limit mechanism to adjust the reference size, shakes the handle to drive the corresponding tooling installed under the machine head to press the surface of the installed PIN, and presses the PIN into the PIN hole of the part, and uses the limit mechanism and the caliper to control the press-in size at the same time to achieve the assembly purpose.

[0017] The utility model combines the high precision and high cleanliness characteristics of IC parts products, and achieves the purpose of accurate positioning and precision measurement by comprehensively improving tool materials and processing accuracy, perfecting matching dimensions, and enriching positioning structures and detection structures. The utility model is made of stainless steel as a whole, which can significantly improve the structural strength of parts; stainless steel will not rust, which can ensure that the appearance of the tool meets the clean room access standards and cleanliness requirements of IC products.

[0018] The limiting mechanism of the utility model is a stainless steel fine-pitch threaded steel nail, the bottom of which is flat-ground to ensure that the flatness is less than 0.01, and the upper surface of the docking machine head is also flat-ground to ensure the measurement accuracy.

[0019] The utility model cooperates with a digital display scale on the tool, uses a transmission sheet to be connected to a travel limit screw, and shakes the handle to drive the lateral gear shaft in the machine head to link the caliper to move, thereby ensuring the accuracy of the displayed value.

[0020] The utility model replaces different upper die core chucks according to different parts states, thereby achieving the purpose of precise matching between PINs and PIN holes and ensuring strict control of exposed height dimensions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the PIN pressing device of the utility model;

[0022] Figure 2 yes Figure 1 An interior perspective view of

[0023] Figure 3 It is a schematic diagram of the internal structure of the PIN pressing device of the utility model;

[0024] Figure 4 yes Figure 3 A local enlarged schematic diagram of the middle A;

[0025] Figure 5 yes Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0026] Figure 6 It is a structural schematic diagram of the limiting mechanism of the PIN pressing device of the utility model;

[0027] In the figure, 1. base; 11. fixture mounting hole; 2. column; 21. lifting adjustment knob; 22. limit clamp; 23. extension screw; 3. machine head; 31. locking screw; 4. limit mechanism; 41. sleeve gear; 42. transverse gear shaft; 43. upper mold core; 44. bellows; 45. cover plate; 46. fixing screw; 47. travel limit screw; 48. travel limit nut; 49. mounting screw; 5. handle; 6. digital scale. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the accompanying drawings.

[0029] The utility model manual PIN pressing device comprises a base 1, a column 2, a machine head 3, a limiting mechanism 4 and a handle 5; the column 2 is vertically mounted on one side of the base 1, the machine head 3 comprises two symmetrical main bodies, which are locked by two upper and lower locking screws 31 at one end; the limiting mechanism 4 and the handle 5 are mounted on the side of the machine head 3 away from the column 2, an upper mold core 43 is mounted on the lower part of the limiting mechanism 4, and a replaceable chuck is mounted on the bottom end of the upper mold core 43; the handle 5 controls and limits the vertical downward pressing and restoring stroke of the upper mold core 43 through a linkage assembly; parts to be processed and PINs to be assembled are placed on the base 1, and the chuck presses the PIN into the PIN hole of the parts to be processed.

[0030] The linkage assembly includes a sleeve gear 41, a transverse gear shaft 42, an upper mold core 43, a bellows 44, a cover plate 45, a stroke limit screw 47 and a stroke limit nut 48; the transverse gear shaft 42 is horizontally installed inside the machine head 3, and one end is connected to the handle 5, and the middle part of the transverse gear shaft 42 is provided with a gear; the sleeve gear 41 is vertically installed inside the machine head 3, with a rack on one side, and the rack is meshed with the gear of the transverse gear shaft 42; the exposed part of the upper end of the sleeve gear 41 is sealed and connected to the bellows 44 by the mounting screws 49, and the upper mold core 43 is installed at the lower end; the cover plate 45 is a teardrop shape including a large head and a small head, the large head is installed with the bellows 44, and the small head is installed with the stroke limit screw 47 and the stroke limit nut 48.

[0031] The upper end of the bellows 44 is fixedly mounted on the lower surface of one end of the cover plate 45 by a fixing screw 46; the transverse gear shaft 42 and the cover plate 45 have holes at the other end, the stroke limit screw 47 is screwed into the hole and the bottom end is screwed into the upper surface of the machine head 3, the stroke limit screw 47 is a fine-pitch threaded steel nail, and the bottom is flat-ground to ensure that the flatness is less than 0.01; the stroke limit nut 48 includes two pieces, which are threadedly mounted on the stroke limit screw 47 and are respectively located above and below the cover plate 45, and the distance between the two stroke limit nuts 48 is the stroke of the upper mold core 43 pressing down.

[0032] The base 1 uses SUS304 stainless steel pipe as the keel bracket, and the SUS304 steel plate is laid flat, welded and polished smooth without burrs, and six sets of fixture installation holes 11 are opened. The column 2 uses a SUS304 stainless steel shaft, with a built-in stainless steel limit clamp 22. The upper part of the column 2 is installed with an extended screw 23 to adjust the head 3 up and down, and the top of the extended screw 23 is installed with a lifting adjustment knob 21.

[0033] The stroke limit screw 47 of the machine head 3 is linked to the digital scale 6 through the transmission piece, the sleeve gear 41 is linked to the caliper, and the digital scale directly measures the descending stroke of the caliper to display the pressing depth of the upper mold core 43.

[0034] The transverse gear shaft 42 is installed horizontally through the interior of the machine head 3, and its two ends are connected to the two main body shafts of the machine head 3; the machine head 3 also includes a limiting wheel, which is installed at the end of the transverse gear shaft 42 away from the handle 5 and is located on the opposite side of the downward pressing direction of the handle 5.

[0035] When in use, first accurately place the part to be processed and the PIN to be assembled on the base 1 through the fixture mounting hole 11. Then, shake the handle 5 in the downward pressing direction to drive the transverse gear shaft 42 installed in the machine head 3 to rotate, and drive the upper mold core 43 to press down through the meshing sleeve gear 41 to press the PIN into the part PIN hole. At the same time, use the limit mechanism and caliper to control the pressing size at the same time to achieve the assembly purpose. In this process, there are two methods of controlling the pressing depth: direct control and indirect control: the distance between the two travel limit nuts 48 is the stroke of the upper mold core 43 pressing down, which is a rough control; the digital display ruler shows the pressing depth of the upper mold core 43, which is a direct and precise control.

Claims

1. A manual PIN pressing device, characterized in that: The machine tool comprises a base (1), a column (2), a machine head (3), a limiting mechanism (4) and a handle (5); the column (2) is vertically mounted on one side of the base (1); the machine head (3) comprises two symmetrical main bodies which are locked by a locking screw (31) at one end; the limiting mechanism (4) and the handle (5) are mounted on the side of the machine head (3) away from the column (2); an upper mold core (43) is mounted at the lower part of the limiting mechanism (4); a replaceable chuck is mounted at the bottom end of the upper mold core (43); the handle (5) controls and limits the vertical downward pressing and restoring stroke of the upper mold core (43) through a linkage assembly; parts to be processed and PINs to be assembled are placed on the base (1), and the chuck presses the PINs into the PIN holes of the parts to be processed; The linkage assembly comprises a sleeve gear (41), a transverse gear shaft (42), an upper mold core (43), a bellows (44), a cover plate (45), a travel limit screw (47) and a travel limit nut (48); the transverse gear shaft (42) is installed horizontally through the interior of the machine head (3), and one end is connected to the handle (5), and the middle part of the transverse gear shaft (42) is provided with a gear; the sleeve gear (41) is installed vertically inside the machine head (3), and one side is provided with a rack, and the rack is meshed with the gear of the transverse gear shaft (42); the exposed part of the upper end of the sleeve gear (41) is fixed by the mounting screw (49) ) is sealed and connected with the bellows (44), and the upper mold core (43) is installed at the lower end; the upper end of the bellows (44) is fixedly installed on the lower surface of one end of the cover plate (45) by a fixing screw (46); the transverse gear shaft (42) and the cover plate (45) have holes at the other end, the stroke limit screw (47) is screwed into the hole and the bottom end is screwed into the upper surface of the machine head (3), the stroke limit nut (48) includes two pieces, which are threadedly mounted on the stroke limit screw (47) and are respectively located above and below the cover plate (45), and the distance between the two stroke limit nuts (48) is the stroke of the upper mold core (43) pressing down.

2. The manual PIN pressing device according to claim 1, characterized in that: The base (1) uses SUS304 stainless steel pipe as the keel bracket, flattens SUS304 steel plates, is welded and polished to be smooth and burr-free, and has six sets of fixture installation holes (11).

3. The manual PIN pressing device according to claim 1, characterized in that: The column (2) is made of a SUS304 stainless steel shaft and has a built-in stainless steel limit clamp (22). An extended screw rod (23) is installed on the upper part of the column (2) to adjust the machine head (3) up and down, and a lifting adjustment knob (21) is installed on the top of the extended screw rod (23).

4. The manual PIN pressing device according to claim 1, characterized in that: The stroke limit screw (47) of the machine head (3) is linked to the digital scale (6) through a transmission sheet, and the sleeve gear (41) is linked to the caliper. The digital scale (6) directly measures the descending stroke of the caliper and displays the pressing depth of the upper mold core (43).

5. The manual PIN pressing device according to claim 1, characterized in that: The locking screws (31) include two screws, which are arranged one above the other.

6. The manual PIN pressing device according to claim 1, characterized in that: The cover plate (45) is in a teardrop shape and includes a large head and a small head. The large head is mounted on the bellows (44), and the small head is mounted on the travel limit screw (47) and the travel limit nut (48).

7. The manual PIN pressing device according to claim 1, characterized in that: The bottom end of the upper mold core (43) is replaced with different chucks according to different parts states.

8. The manual PIN pressing device according to claim 1, characterized in that: The transverse gear shaft (42) is installed horizontally through the interior of the machine head (3), and its two ends are connected to the two main body shafts of the machine head (3); the machine head (3) also includes a limiting wheel, which is installed at the end of the transverse gear shaft (42) away from the handle (5) and is located on the opposite side of the downward pressing direction of the handle (5).

9. The manual PIN pressing device according to claim 1, characterized in that: The travel limit screw (47) is a fine-threaded steel nail, and the bottom is flat-ground to ensure that the flatness is less than 0.01.

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