Production mold for clutch driven disc

Abstract

The utility model relates to a production die for a clutch driven disc. The production die comprises a gland, a base, a stamping die plate, a stamping assembly, an upper die plate, a spring, a lower die plate, a die core assembly and a positioning pin. When a punching machine drives the upper die plate to punch through the gland, the upper die plate is extruded by the lower die plate to move towards the punching die plate, the spring is compressed, the punching assembly is ejected out, and therefore the production requirement for punching after pressing and fixing of a sheet metal part is met, dislocation of a driven disc in the punching process is avoided, and the punching quality of the driven disc is improved. Six sets of rectangular grooves which are evenly distributed in the circumferential direction are punched in the driven disc before punching, the driven disc is clamped to the positioning pins through the rectangular grooves, and due to the fact that the positioning pins are distributed in a rectangular mode, positioning can be completed by randomly clamping two sets of rectangular grooves which are distributed in a diagonal mode, so that the machining steps of the driven disc are simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a production mold for a clutch driven disc. Background Art

[0002] The driven plate of a traditional clutch is stamped and bent into a semi-finished sheet metal part through a sheet metal die, and then the driven plate holes are punched into shape through a punching die. The traditional punching die usually includes a punch needle holder for blanking and a clamp for fixing the sheet metal part. The sheet metal part needs to be fixed before each stamping and then punching. After punching, the driven plate needs to be removed and the next one installed. Its production efficiency is low and the operation is cumbersome. Summary of the Invention

[0003] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a production mold for a clutch driven plate, including a pressure cover, a base, a punching plate, a stamping assembly, an upper template, a spring, a lower template, a core assembly and a positioning pin. The pressure cover is slidably connected to the base by linear shafts on all sides, is fixedly connected to the punching plate, and a stamping assembly is clamped between the pressure cover and the punching plate. The pressure cover is slidably connected to the upper template, and a spring is provided between the upper template and the pressure cover. The base is provided with a lower template corresponding to the upper template, and the lower template is clamped with a core assembly adapted to the stamping assembly, as well as positioning pins for positioning the workpiece, and the positioning pins are distributed in a rectangular shape on the lower template.

[0004] By adopting the above technical solution, when punching, the sheet metal of the driven disk is placed between the upper template and the lower template, and the stamping assembly is embedded in the upper template. When the punch press drives the upper template to punch through the pressure cover, the upper template is squeezed by the lower template and moves toward the punching template, causing the spring to compress and the stamping assembly to be ejected, thereby meeting the production needs of pressing and fixing the sheet metal parts before punching, and avoiding dislocation of the driven disk during punching; the driven disk has six groups of rectangular grooves evenly distributed around the circumference before punching, and is clamped to the locating pins through the rectangular grooves. Since the locating pins are distributed in a rectangular shape, they can complete the positioning by randomly clamping two groups of diagonally distributed rectangular grooves, thereby simplifying the machine steps of the driven disk and improving production efficiency.

[0005] The utility model is further configured as follows: the stamping assembly includes a center punch rod and a punch needle, the punch plate is provided with a mounting cavity and a first countersunk hole, the center punch rod is provided with a second countersunk hole, one end of the center punch rod is threadedly connected to the pressure cover through the second countersunk hole, and the other end passes through the mounting cavity, and the punch needle is clamped between the punch plate and the pressure cover through the first countersunk hole.

[0006] Furthermore, the upper template is provided with sliding rods distributed in a circumference, and the pressure cover and punch template are provided with third countersunk holes and through holes corresponding to the sliding rods, and the sliding rods pass through the through holes and are slidably connected to the third countersunk holes.

[0007] Using the above technical solution, a thread is provided at the bottom of the sliding rod, and the sliding rod passes through the pressure cover and the punching plate in turn through the third countersunk hole and is threadedly connected to the upper plate through the threaded part. When the punch press drives the upper plate to punch through the pressure cover, the upper plate moves up and down relative to the punching plate through the positioning of the sliding rod, meeting the punching requirements of the center punch rod and the punch needle.

[0008] The present invention is further configured such that the central punch is provided with circumferentially distributed protrusions.

[0009] By adopting the above technical solution, the center punch is threadedly connected to the pressure cover through the second countersunk hole and is clamped to the punch template through the raised portion. The positioning of the raised portion prevents the center punch from rotating and loosening relative to the pressure cover during movement, making the structure stable and reliable.

[0010] The utility model is further configured such that the lower template is provided with a card slot and a positioning hole, the core assembly is embedded in the lower template through the card slot, the bottom of the positioning pin abuts against the base, and the other end extends outward through the positioning hole.

[0011] Furthermore, the mold core assembly includes a main core and auxiliary cores distributed circumferentially around the main core. The lower template is located at the main core and is provided with a cavity adapted to the outer contour of the driven disk. The main core is provided with a blanking groove and a blanking hole corresponding to the center punch rod and the punch needle. The auxiliary core is provided with a blanking hole corresponding to the punch needle. The base is provided with a discharge hole coaxially distributed with the blanking groove / blanking hole, and the diameter of the discharge hole is larger than the diameter of the blanking hole.

[0012] By adopting the above technical solution, when the main core / auxiliary core needs to be replaced, a round rod with an outer diameter close to the discharge hole is passed through the discharge hole from bottom to top and the main core / auxiliary core is pushed out, which makes the replacement method simple and convenient.

[0013] The utility model is further configured such that the auxiliary core is in a symmetrical shape as a whole, and arc surfaces are symmetrically distributed at both ends thereof, which is suitable for auxiliary cores with punching holes of the same size and symmetrical distribution, thereby simplifying the installation method.

[0014] The utility model is further configured such that the auxiliary core is L-shaped as a whole, and arc surfaces of different diameters are provided at both ends thereof. For auxiliary cores with different sizes of punching holes and disordered distribution, an anti-error structure with different sizes at both ends is adopted, so that the installation method of the auxiliary core is unique, thereby avoiding damage to the equipment due to wrong installation.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. When punching, the sheet metal of the driven plate is placed between the upper and lower templates. When the punch press drives the upper template to punch through the gland, the upper template is squeezed by the lower template and moves toward the punching template, causing the spring to compress and the punching assembly to eject. This meets the production requirements of pressing and fixing the sheet metal before punching, and avoids the misalignment of the driven plate during punching. Before punching, the driven plate has six groups of rectangular grooves evenly distributed around the circumference, which are clamped to the locating pins through the rectangular grooves. Since the locating pins are distributed in a rectangular shape, they can be randomly clamped to two groups of diagonally distributed rectangular grooves to complete the positioning, thereby simplifying the installation steps of the driven plate and improving production efficiency.

[0017] 2. The driven disc is provided with six groups of rectangular grooves evenly distributed around the circumference, which are connected to the positioning pins through the rectangular grooves. Since the positioning pins are distributed in a rectangular shape, they can be randomly connected to two groups of diagonally distributed rectangular grooves to complete the positioning, thereby simplifying the installation steps of the driven disc and improving production efficiency.

[0018] The embodiments of the present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is an exploded view of the structure of the present utility model;

[0021] Figure 3 A top view of the punching plate of the present utility model;

[0022] Figure 4 A bottom view of the center punch of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the punching needle of the present utility model;

[0024] Figure 6 It is a top view of the lower template of the utility model;

[0025] Figure 7 This is a schematic structural diagram of the main core of the utility model;

[0026] Figure 8 This is a structural diagram of the first embodiment of the auxiliary core of the present utility model;

[0027] Figure 9 This is a structural diagram of a second embodiment of the auxiliary core of the present utility model;

[0028] Among them: 1- gland, 2- base, 3- punch plate, 4- punch assembly, 5- upper plate, 6- spring, 7- lower plate, 8- core assembly, 9- positioning pin, 10- slide bar, 11- third countersunk hole, 31- mounting cavity, 32- first countersunk hole, 33- through hole, 41- center punch, 42- punch needle, 43- second countersunk hole, 44- raised part, 71- slot, 72- positioning hole, 73- cavity, 81- main core, 82- auxiliary core, 84- arc surface, 100- blanking groove, 101- blanking hole; DETAILED DESCRIPTION

[0029] like Figure 1 、 2 As shown, the utility model provides a production mold for a clutch driven plate, including a pressure cover 1, a base 2, a punching plate 3, a stamping assembly 4, an upper template 5, a spring 6, a lower template 7, a core assembly 8 and a positioning pin 9. The pressure cover 1 is slidably connected to the base 2 by linear shafts on all sides, is fixedly connected to the punching plate 3, and the stamping assembly 4 is clamped between the pressure cover 1 and the punching plate 3. The pressure cover 1 is slidably connected to the upper template 5, and a spring 6 is provided between the upper template 5 and the pressure cover 1. The base 2 is provided with a lower template 7 corresponding to the upper template 5, and the lower template 7 is clamped with a core assembly 8 adapted to the stamping assembly 4, as well as positioning pins 9 for positioning the workpiece, and the positioning pins 9 are distributed in a rectangular shape on the lower template 7.

[0030] Combine Figure 3-5 As shown, in this embodiment, the stamping assembly 4 includes a center punch rod 41 and a punch needle 42, the punching plate 3 is provided with a mounting cavity 31 and a first countersunk hole 32, the center punch rod 41 is provided with a second countersunk hole 43, one end of the center punch rod 41 is threadedly connected to the pressure cover 1 through the second countersunk hole 43, and the other end passes through the mounting cavity 31, the punch needle 42 is in the shape of a round head screw, and the punch needle 42 is clamped between the punching plate 3 and the pressure cover 1 through the first countersunk hole 32, the upper template 5 is provided with a sliding rod 10 distributed in a circle, the pressure cover 1 and the punching plate 3 are provided with a third countersunk hole 11 and a through hole 33 corresponding to the sliding rod 10, the sliding rod 10 is slidably connected to the third countersunk hole 11 through the through hole 33, the center punch rod 41 is provided with a circumferentially distributed protrusion 44, the bottom of the sliding rod 10 is provided with a thread, and the sliding rod 10 passes through the pressure cover 1 and the punching plate 3 in turn through the third countersunk hole 11 and is threadedly connected to the upper template 5.

[0031] Combine Figure 6 、 7As shown, in this embodiment, the lower template 7 is provided with a slot 71 and a positioning hole 72, the core assembly 8 is embedded in the lower template 7 through the slot 71, the bottom of the positioning pin 9 abuts against the base 2, and the other end extends outward through the positioning hole 72, the core assembly 8 includes a main core 81 and auxiliary cores 82 circumferentially distributed around the main core 81, the lower template 7 is located at the main core 81 and is provided with a cavity 73 adapted to the outer contour of the driven disk, the main core 81 is provided with a punching groove 100 and a punching hole 101 corresponding to the center punch rod 41 and the punch needle 42, the auxiliary core 82 is provided with a punching hole 101 corresponding to the punch needle 42, and the base 2 is provided with a discharge hole coaxially distributed with the punching groove 100 / punching hole 101, and the diameter of the discharge hole is larger than the diameter of the punching hole 101.

[0032] like Figure 8 As shown, the utility model provides a first embodiment of the auxiliary core 82. The auxiliary core 82 is symmetrical in shape as a whole, and has symmetrically distributed arc surfaces 84 at both ends. It is suitable for auxiliary cores 82 with punching holes 101 of the same size and symmetrical distribution, simplifying the installation method.

[0033] like Figure 9 As shown, the present invention provides a second embodiment of the auxiliary core 82. The auxiliary core 82 is L-shaped as a whole, and arc surfaces 84 of different diameters are provided at both ends. For auxiliary cores 82 with punching holes 101 of different sizes and disordered distribution, an anti-error structure with different sizes at both ends is adopted, so that the installation method of the auxiliary core 82 is unique, avoiding damage to the equipment due to wrong installation.

[0034] The working principle of the present utility model is: the sheet metal of the driven disk is placed between the upper template 5 and the lower template 7, and the driven disk is provided with six groups of rectangular grooves evenly distributed around the circumference, which are clamped to the locating pins 9 through the rectangular grooves. Since the locating pins 9 are distributed in a rectangular shape, they can complete the positioning by randomly clamping two groups of diagonally distributed rectangular grooves. When the punch press drives the upper template 5 to punch holes through the pressure cover 1, the upper template 5 is squeezed by the lower template 7 and moves toward the punching template 3, so that the spring 6 is compressed. At this time, the center punch rod 41 and the punch needle 42 punch out the sheet metal and the punched waste is discharged from the discharge hole, thereby completing the punching process of the driven disk.

[0035] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A production mold for a clutch driven disc, characterized in that: The invention comprises a pressure cover (1), a base (2), a punching plate (3), a punching assembly (4), an upper plate (5), a spring (6), a lower plate (7), a core assembly (8) and a positioning pin (9); the pressure cover (1) is slidably connected to the base (2) via linear shafts on all sides, is fixedly connected to the punching plate (3), and a punching assembly (4) is clamped between the pressure cover (1) and the punching plate (3); the pressure cover (1) is slidably connected to the upper plate (5), and a spring (6) is provided between the upper plate (5) and the pressure cover (1); the base (2) is provided with a lower plate (7) corresponding to the upper plate (5), and the lower plate (7) is clamped with a core assembly (8) adapted to the punching assembly (4), as well as positioning pins (9) for positioning a workpiece, and the positioning pins (9) are distributed in a rectangular shape on the lower plate (7).

2. A production mold for a clutch driven disc according to claim 1, characterized in that: The punching assembly (4) includes a central punch rod (41) and a punch needle (42); the punching plate (3) is provided with a mounting cavity (31) and a first countersunk hole (32); the central punch rod (41) is provided with a second countersunk hole (43); one end of the central punch rod (41) is threadedly connected to the pressure cover (1) through the second countersunk hole (43), and the other end passes through the mounting cavity (31); the punch needle (42) is clamped between the punching plate (3) and the pressure cover (1) through the first countersunk hole (32).

3. A production mold for a clutch driven disc according to claim 2, characterized in that: The upper template (5) is provided with sliding rods (10) distributed in a circumferential manner, and the pressure cover (1) and the punching template (3) are provided with third countersunk holes (11) and through holes (33) corresponding to the sliding rods (10), and the sliding rods (10) pass through the through holes (33) and are slidably connected to the third countersunk holes (11).

4. A production mold for a clutch driven disc according to claim 2, characterized in that: The central punch (41) is provided with convex portions (44) distributed in a circumferential manner.

5. The production mold for a clutch driven disc according to claim 2, characterized in that: The lower template (7) is provided with a slot (71) and a positioning hole (72); the core assembly (8) is embedded in the lower template (7) through the slot (71); the bottom of the positioning pin (9) abuts against the base (2), and the other end extends outward through the positioning hole (72).

6. A production mold for a clutch driven disc according to claim 5, characterized in that: The mold core assembly (8) includes a main core (81) and auxiliary cores (82) circumferentially distributed around the main core (81); the lower template (7) is provided with a cavity (73) adapted to the outer contour of the driven disk at the main core (81); the main core (81) is provided with a punching groove (100) and a punching hole (101) corresponding to the center punch rod (41) and the punching needle (42); the auxiliary core (82) is provided with a punching hole (101) corresponding to the punching needle (42); the base (2) is provided with a discharge hole coaxially distributed with the punching groove (100) / the punching hole (101), and the diameter of the discharge hole is larger than the diameter of the punching hole (101).

7. A production mold for a clutch driven disc according to claim 6, characterized in that: The auxiliary core (82) is in a symmetrical shape as a whole, and has arc surfaces (84) at both ends thereof that are symmetrically distributed.

8. The production mold for a clutch driven disc according to claim 6, characterized in that: The auxiliary core (82) is L-shaped as a whole, and arc surfaces (84) with different diameters are provided at both ends.

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