Lower threading guide mechanism

Abstract

A lower wire penetrating guide mechanism comprises a lower wire penetrating fixed guide block, a lower wire penetrating movable block capable of moving in the left-right direction, a guide nozzle mounting plate and a metal wire lower guide nozzle. The left side wall of the lower threading fixing guide block is provided with a wire guide groove which extends from top to bottom and then from front to back and is in smooth transition. The lower threading movable block is mounted on the left side of the lower threading fixed guide block; the lower wire penetrating movable block abuts against the lower wire penetrating fixed guide block to seal the wire guide groove. The guide nozzle mounting plate is positioned above the lower threading fixed guide block and the lower threading movable block; the metal wire lower guide nozzle is fixedly mounted on the guide nozzle mounting plate; a metal wire insertion hole is formed in the metal wire lower guide nozzle and communicated with the wire guide groove. The wire guide groove is in smooth transition, the inserted and conveyed metal wires pass smoothly, the wire threading efficiency is high, the wire threading effect is stable and reliable, time and labor are saved, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to an electric spark wire cutting device. Background Art

[0002] Electrospark machining is a process that uses pulsed spark discharge to erode the material being machined. There is no contact between the machining electrode and the material being machined due to the presence of a liquid dielectric, so a softer electrode (tool) can be used to machine hard and brittle conductors such as metals and semiconductor materials.

[0003] The most common EDM process is the moving wire electrode cutting process. The cutting wire used in wire electrode cutting is the electrode wire (metal wire). In the current equipment, there is no special mechanism for threading the metal wire. All wire threading is done manually by workers, which is time-consuming and labor-intensive, with high labor costs. The wire threading is often not in place, and the threading effect cannot be guaranteed, resulting in low efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is that the existing electric spark wire cutting equipment does not have a special wire threading mechanism and relies entirely on manual wire threading, which is time-consuming and labor-intensive, has high labor costs, cannot guarantee the wire threading effect, and has low efficiency. The utility model proposes a lower wire threading guide mechanism, which saves time and effort, saves labor costs, has a good wire threading effect, and is efficient.

[0005] In order to solve the above technical problems, the utility model proposes the following technical solutions: a lower wire guide mechanism, comprising a lower wire fixed guide block, a lower wire movable block movable along the left and right directions, a guide nozzle mounting plate and a lower wire guide nozzle;

[0006] A wire groove is provided on the left side wall of the lower threading fixing guide block, which first extends from top to bottom and then from front to back and smoothly transitions;

[0007] The lower threading movable block is installed on the left side of the lower threading fixed guide block;

[0008] The lower threading movable block abuts against the lower threading fixed guide block to close the wire groove;

[0009] The guide nozzle mounting plate is located above the lower threading fixed guide block and the lower threading movable block;

[0010] The lower guide nozzle of the metal wire is installed and fixed on the guide nozzle installation plate;

[0011] A metal wire insertion hole is provided on the lower metal wire guide nozzle, and the metal wire insertion hole is communicated with the guide wire groove.

[0012] The above technical solution is further limited in that: it also includes a left lower threading seat, a right lower threading seat, a cylinder bracket, a pressing cylinder, a pressing block and a pressing connecting block;

[0013] A pressing block through hole is provided on the lower left thread threading seat;

[0014] The right lower threading seat is installed and fixed on the right side of the left lower threading seat;

[0015] The lower threading fixed guide block is installed and fixed on the left side wall of the right lower threading seat;

[0016] The lower threading fixed guide block and the lower threading movable block are installed between the left lower threading seat and the right lower threading seat;

[0017] The cylinder bracket is installed and fixed on the lower left threading seat;

[0018] The pressing cylinder is installed and fixed on the cylinder bracket;

[0019] The pressing block is fixed on the piston rod of the pressing cylinder and inserted into the through hole of the pressing block;

[0020] The clamping connection block is installed and fixed in the clamping block, and the right end of the clamping connection block is installed and fixed on the left side surface of the lower threading movable block.

[0021] The above technical solution is further limited in that: a guide nozzle installation groove is provided on the guide nozzle installation plate, and a metal wire through hole connected to the top of the wire groove is provided in the guide nozzle installation groove;

[0022] The lower guide nozzle of the metal wire is installed and fixed in the guide nozzle installation groove;

[0023] The wire insertion hole is communicated with the wire through hole.

[0024] The technical solution is further limited in that: a funnel-shaped metal wire introduction inclined wall with a smooth surface is provided around the metal wire insertion hole.

[0025] The technical solution is further limited in that the shapes of the lower threading movable block and the lower threading fixed guide block are both L-shaped.

[0026] In order to solve the above technical problems, the utility model proposes the following technical solutions: a lower wire guide mechanism, comprising a lower wire fixed guide block, a lower wire movable block movable along the left and right directions, a guide nozzle mounting plate and a lower wire guide nozzle;

[0027] A wire groove is provided on the right side wall of the lower threading fixing guide block, which first extends from top to bottom and then from front to back and smoothly transitions;

[0028] The lower threading movable block is installed on the right side of the lower threading fixed guide block;

[0029] The lower threading movable block abuts against the lower threading fixed guide block to close the wire groove;

[0030] The guide nozzle mounting plate is located above the lower threading fixed guide block and the lower threading movable block;

[0031] The lower guide nozzle of the metal wire is installed and fixed on the guide nozzle installation plate;

[0032] A metal wire insertion hole is provided on the lower metal wire guide nozzle, and the metal wire insertion hole is communicated with the guide wire groove.

[0033] The above technical solution is further limited in that: it also includes a left lower threading seat, a right lower threading seat, a cylinder bracket, a pressing cylinder, a pressing block and a pressing connecting block;

[0034] A pressing block through hole is provided on the lower right threading seat;

[0035] The right lower threading seat is installed and fixed on the right side of the left lower threading seat;

[0036] The lower threading fixed guide block is installed and fixed on the right side wall of the left lower threading seat;

[0037] The lower threading fixed guide block and the lower threading movable block are installed between the left lower threading seat and the right lower threading seat;

[0038] The cylinder bracket is installed and fixed on the lower right threading seat;

[0039] The pressing cylinder is installed and fixed on the cylinder bracket;

[0040] The pressing block is fixed on the piston rod of the pressing cylinder and inserted into the through hole of the pressing block;

[0041] The clamping connection block is installed and fixed in the clamping block, and the left end of the clamping connection block is installed and fixed on the right side surface of the lower threading movable block.

[0042] The above technical solution is further limited in that: a guide nozzle installation groove is provided on the guide nozzle installation plate, and a metal wire through hole connected to the top of the wire groove is provided in the guide nozzle installation groove;

[0043] The lower guide nozzle of the metal wire is installed and fixed in the guide nozzle installation groove;

[0044] The metal wire insertion hole and the metal wire through hole are vertically opposite to each other and are connected.

[0045] The technical solution is further limited in that: a funnel-shaped metal wire introduction inclined wall with a smooth surface is provided around the metal wire insertion hole.

[0046] The technical solution is further limited in that the shapes of the lower threading movable block and the lower threading fixed guide block are both L-shaped.

[0047] Compared with the prior art, the utility model has the following beneficial effects: the metal wire is inserted into the metal wire insertion hole and continues to be conveyed inward, the wire groove has a smooth transition, the metal wire passes very smoothly, and finally comes out from the rear end of the wire groove, the wire threading efficiency is high, the wire threading effect is stable and reliable, time and effort are saved, and labor costs are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a three-dimensional combined diagram of the lower wire threading guide mechanism of the utility model.

[0049] Figure 2 It is an exploded view of the lower wire threading guide mechanism of the utility model.

[0050] Figure 3 It is a stereoscopic diagram of the lower threading fixing guide block of the utility model.

[0051] Figure 4 It is a three-dimensional diagram of the lower guide nozzle of the metal wire of the utility model. DETAILED DESCRIPTION

[0052] See also Figures 1 to 4 A lower wire threading guide mechanism includes a left lower wire threading seat 11, a right lower wire threading seat 13, a lower wire threading fixed guide block 17, a lower wire threading movable block 19, a cylinder bracket 21, a clamping cylinder 23, a clamping block 25, a clamping connecting block 27, a guide nozzle mounting plate 29 and a lower wire guide nozzle 31.

[0053] A pressing block through hole 112 is formed on the lower left thread threading seat 11 .

[0054] The rear portion of the lower right threading seat 13 is installed and fixed on the upper rear portion of the right side wall of the lower left threading seat 11 .

[0055] The lower threading fixed guide block 17 is installed and fixed on the left side wall of the right lower threading seat 13.

[0056] A wire groove 172 is provided on the left side wall of the lower threading fixing guide block 17, which first extends from top to bottom and then from front to back with a smooth transition.

[0057] The top end of the wire groove 172 is enlarged to facilitate the entry of a metal wire (not shown).

[0058] The lower wire threading movable block 19 is installed on the left side of the lower wire threading fixed guide block 17, and the lower wire threading movable block 19 can move along the left and right directions.

[0059] The shapes of the lower threading movable block 19 and the lower threading fixed guide block 17 are both L-shaped.

[0060] The lower threading fixed guide block 17 and the lower threading movable block 19 are installed between the left lower threading seat 11 and the right lower threading seat 13 .

[0061] The cylinder support 21 is installed and fixed on the lower left threading seat 11.

[0062] The pressing cylinder 23 is mounted and fixed on the cylinder bracket 21 .

[0063] The pressing block 25 is mounted and fixed on the piston rod (not numbered) of the pressing cylinder 23 , and is inserted into the pressing block through hole 112 .

[0064] The clamping connection block 27 is installed and fixed in the clamping block 25, and its right end is installed and fixed on the left side surface of the lower threading movable block 19.

[0065] When the clamping cylinder 23 is started, its piston rod (not numbered) moves in the left-right direction, driving the clamping block 25, the clamping connection block 27 and the lower threading movable block 19 to move in the left-right direction. When the lower threading movable block 19 moves to the right and abuts against the lower threading fixed guide block 17, the lower threading movable block 19 closes the wire groove 172, and the metal wire (not shown) cannot slip out of the wire groove 172. When the clamping cylinder 23 is started to drive the lower threading movable block 19 to move to the left, the lower threading movable block 19 is separated from the lower threading fixed guide block 17, and the lower threading movable block 19 no longer continues to close the wire groove 172.

[0066] The guide nozzle mounting plate 29 is installed and fixed on the upper front part of the left lower threading seat 11 and the right lower threading seat 13, and is located above the lower threading fixed guide block 17 and the lower threading movable block 19.

[0067] A guide nozzle mounting groove 292 is formed on the guide nozzle mounting plate 29 , and a wire through hole 294 communicating with the top end of the wire groove 172 is formed in the guide nozzle mounting groove 292 .

[0068] The lower wire guide nozzle 31 is installed and fixed in the guide nozzle installation groove 292 of the guide nozzle installation plate 29.

[0069] A wire insertion hole 312 is formed on the lower wire guide nozzle 31. The wire insertion hole 312 is vertically opposite to and connected to the wire through hole 294. Therefore, the wire insertion hole 312, the wire through hole 294 and the guide groove 172 are all connected.

[0070] A funnel-shaped wire introduction inclined wall 314 having a smooth surface is provided around the wire insertion hole 312 .

[0071] When the metal wire (not shown) pokes onto the metal wire introduction inclined wall 314 , the metal wire easily slides along the metal wire introduction inclined wall 314 into the metal wire insertion hole 312 .

[0072] When working, first start the clamping cylinder 23, and its piston rod drives the lower threading movable block 19 to move rightward and abut against the lower threading fixed guide block 17, and the lower threading movable block 19 closes the wire groove 172 (leaving only the inlet and outlet of the metal wire unclosed). The worker manually pulls the metal wire (not shown) and inserts it into the metal wire insertion hole 312 of the lower wire guide nozzle 31. The metal wire passes through the metal wire through hole 294 and enters the wire groove 172. The metal wire moves along the wire groove 172 and finally comes out from the outlet at the rear end of the wire groove 172.

[0073] The utility model has the following beneficial effects: the metal wire is inserted into the metal wire insertion hole 312 and continues to be conveyed inward, the metal wire moves smoothly along the wire groove 172, and finally comes out from the rear end of the wire groove 172. Since the wire groove 172 has a smooth transition and a smooth surface, the metal wire slides very smoothly and unobstructed, and it is easy to guide the metal wire even when it is bent. The wire threading efficiency is high, the wire threading effect is stable and reliable, and it saves time and effort, and saves labor costs.

[0074] In another embodiment, the wire groove 172 is changed to be opened on the right side wall of the lower threading fixed guide block 17, and the lower threading movable block 19 is changed to be installed on the right side of the lower threading fixed guide block 17, and the lower threading movable block 19 can still move in the left and right directions; accordingly, the clamping block through hole 112 is changed to be opened on the right lower threading seat 13, the lower threading fixed guide block 17 is changed to be installed and fixed on the right side wall of the left lower threading seat 11, the cylinder bracket 21 is changed to be installed and fixed on the right lower threading seat 13, and the left end of the clamping connection block (27) is installed and fixed on the right side surface of the lower threading movable block (19). The same functions and technical effects as the first embodiment can be achieved.

Claims

1. A wire threading guide mechanism, characterized in that: It comprises a lower wire threading fixed guide block (17), a lower wire threading movable block (19) movable in the left-right direction, a guide nozzle mounting plate (29) and a lower wire guide nozzle (31); A wire groove (172) is provided on the left side wall of the lower threading fixing guide block (17) and extends from top to bottom and then from front to back with a smooth transition; The lower threading movable block (19) is installed on the left side of the lower threading fixed guide block (17); The lower threading movable block (19) abuts against the lower threading fixed guide block (17) to close the wire groove (172); The guide nozzle mounting plate (29) is located above the lower threading fixed guide block (17) and the lower threading movable block (19); The lower wire guide nozzle (31) is mounted and fixed on the guide nozzle mounting plate (29); A metal wire insertion hole (312) is provided on the metal wire lower guide nozzle (31), and the metal wire insertion hole (312) is communicated with the guide wire groove (172).

2. The wire threading guide mechanism according to claim 1, characterized in that: It also includes a left lower threading seat (11), a right lower threading seat (13), a cylinder bracket (21), a pressing cylinder (23), a pressing block (25) and a pressing connecting block (27); A pressing block through hole (112) is provided on the lower left thread threading seat (11); The right lower threading seat (13) is installed and fixed on the right side of the left lower threading seat (11); The lower threading fixed guide block (17) is installed and fixed on the left side wall of the right lower threading seat (13); The lower threading fixed guide block (17) and the lower threading movable block (19) are installed between the left lower threading seat (11) and the right lower threading seat (13); The cylinder bracket (21) is mounted and fixed on the left lower threading seat (11); The pressing cylinder (23) is mounted and fixed on the cylinder support (21); The pressing block (25) is mounted and fixed on the piston rod of the pressing cylinder (23) and inserted into the pressing block through hole (112); The clamping connection block (27) is installed and fixed in the clamping block (25), and its right end is installed and fixed on the left side surface of the lower threading movable block (19).

3. The wire threading guide mechanism according to claim 1, characterized in that: A guide nozzle installation groove (292) is formed on the guide nozzle installation plate (29), and a metal wire through hole (294) connected to the top end of the guide wire groove (172) is formed in the guide nozzle installation groove (292); The lower wire guide nozzle (31) is installed and fixed in the guide nozzle installation groove (292); The metal wire insertion hole (312) is in communication with the metal wire through hole (294).

4. The wire threading guide mechanism according to claim 1 or 3, characterized in that: A funnel-shaped metal wire introduction inclined wall (314) with a smooth surface is provided around the metal wire insertion hole (312).

5. The wire threading guide mechanism according to claim 1, characterized in that: The shapes of the lower threading movable block (19) and the lower threading fixed guide block (17) are both L-shaped.

6. A wire threading guide mechanism, characterized in that: It comprises a lower wire threading fixed guide block (17), a lower wire threading movable block (19) movable in the left-right direction, a guide nozzle mounting plate (29) and a lower wire guide nozzle (31); A wire groove (172) is provided on the right side wall of the lower threading fixing guide block (17) and extends from top to bottom and then from front to back with a smooth transition; The lower threading movable block (19) is installed on the right side of the lower threading fixed guide block (17); The lower threading movable block (19) abuts against the lower threading fixed guide block (17) to close the wire groove (172); The guide nozzle mounting plate (29) is located above the lower threading fixed guide block (17) and the lower threading movable block (19); The lower wire guide nozzle (31) is mounted and fixed on the guide nozzle mounting plate (29); A metal wire insertion hole (312) is provided on the metal wire lower guide nozzle (31), and the metal wire insertion hole (312) is communicated with the guide wire groove (172).

7. The wire threading guide mechanism according to claim 6, characterized in that: It also includes a left lower threading seat (11), a right lower threading seat (13), a cylinder bracket (21), a pressing cylinder (23), a pressing block (25) and a pressing connecting block (27); A pressing block through hole (112) is provided on the lower right threading seat (13); The right lower threading seat (13) is installed and fixed on the right side of the left lower threading seat (11); The lower threading fixed guide block (17) is installed and fixed on the right side wall of the left lower threading seat (11); The lower threading fixed guide block (17) and the lower threading movable block (19) are installed between the left lower threading seat (11) and the right lower threading seat (13); The cylinder bracket (21) is mounted and fixed on the lower right threading seat (13); The pressing cylinder (23) is mounted and fixed on the cylinder support (21); The pressing block (25) is mounted and fixed on the piston rod of the pressing cylinder (23) and inserted into the pressing block through hole (112); The clamping connection block (27) is installed and fixed in the clamping block (25), and its left end is installed and fixed on the right side surface of the lower threading movable block (19).

8. The wire threading guide mechanism according to claim 6, characterized in that: A guide nozzle installation groove (292) is formed on the guide nozzle installation plate (29), and a metal wire through hole (294) connected to the top end of the guide wire groove (172) is formed in the guide nozzle installation groove (292); The lower wire guide nozzle (31) is installed and fixed in the guide nozzle installation groove (292); The metal wire insertion hole (312) and the metal wire through hole (294) are vertically opposed to each other and are in communication with each other.

9. The wire threading guide mechanism according to claim 6 or 8, characterized in that: A funnel-shaped metal wire introduction inclined wall (314) with a smooth surface is provided around the metal wire insertion hole (312).

10. The wire threading guide mechanism according to claim 6, characterized in that: The shapes of the lower threading movable block (19) and the lower threading fixed guide block (17) are both L-shaped.

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