A linkage mold

Abstract

The present invention belongs to the field of mold technology, specifically a linkage mold; it includes: a shovel, a base, a No. 1 slider, a No. 2 slider, and a drilling and grinding mechanism; the present invention forms the parts by means of a hard material insert squeezing the No. 1 slider and the No. 2 slider when the shovel moves downward, and when the parts are completed, the shovel continues to move downward, squeezing the piston rod, so that the piston rod overcomes the elastic force of the elastic member and moves downward, and the piston rod squeezes the hydraulic oil in the oil chamber, pushing the piston to the left, thereby driving the push plate to the left; when the push plate moves to the left, it drives the drill plate to the left, thereby driving the drill rod to extend from the forming insert to punch the formed parts, so that after the part side is formed, the present arrangement uses the side forming mold to extrude and position the part, and immediately completes the punching operation.

Description

Technical Field

[0001] The invention belongs to the technical field of molds, in particular to a linkage mold. Background Art

[0002] There are some covering parts on the car, such as the engine cover, front and rear doors, tailgate, trunk lid and other parts. In order to ensure the appearance quality of the car, body rigidity, smooth contour, body matching, and uniform gaps, these parts are fastened together by outer panels and corresponding inner panels; in order to meet the fastening angle requirements, when formulating the stamping process plan for the outer panels, it is often necessary to use a side forming process to meet the fastening angle requirements; in addition, for example, left and right fenders, left and right side outer panels, roof and other body parts, in order to meet the requirements of body assembly, overlap between parts, body sealing, and water leakage prevention, the above-mentioned parts are often designed with negative angles to meet the above requirements; therefore, side forming processes are ubiquitous in the design of automobile cover dies.

[0003] However, when using the side forming process to produce some parts, it is sometimes necessary to punch the formed parts. Usually, when producing these parts, it is necessary to take out the parts after the side forming is completed, and then put them into the punching die for punching. In this regard, on the one hand, after the side forming, the parts are taken out and put back into the punching die for positioning and punching, which undoubtedly increases the operation steps and reduces production efficiency; on the other hand, when positioning the formed parts, if the positioning is inaccurate, it is likely to cause inaccurate hole position and generate errors; and the holes punched in the existing technology usually contain more burrs, which affects the quality of the punched holes.

[0004] In view of this, the present invention solves the above technical problems by proposing a linkage mold. Summary of the Invention

[0005] In order to make up for the shortcomings of the existing technology, the present invention provides a linkage mold by combining side forming and punching into one, and polishing the punched holes.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a linkage mold, comprising: a shovel, hard material inserts are provided on both sides of the bottom of the shovel; a base, a sliding groove is provided on the top of the base; a No. 1 slider, the No. 1 slider is slidably installed in the sliding groove, and a nitrogen spring is fixedly installed between the No. 1 slider and the side wall of the sliding groove, the top of the No. 1 slider is provided with a No. 1 cavity, and the bottom of the No. 1 cavity is provided with a No. 1 groove; a No. 2 slider, the No. 2 slider is located in the No. 1 cavity and slidably connected to the No. 1 groove, a nitrogen spring is fixedly connected between the No. 2 slider and the side wall of the No. 1 groove, and the No. 2 slider and the right side of the No. 1 cavity are both provided with forming inserts; a drilling and grinding mechanism, a drilling and grinding mechanism is provided in the No. 1 slider and the No. 2 slider, and the drilling and grinding mechanism uses the downward movement of the shovel as power to drill holes in the formed parts and grind the drilled holes.

[0007] The shovel can be driven by a hydraulic device, such as a hydraulic press. Hard material inserts are fixed on both sides of the bottom of the shovel. The connection between the hard material inserts and the shovel can be bolted, such as Figure 2 As shown, the length of the hard material insert on the right side in the vertical direction is greater than the length of the hard material insert on the left side in the vertical direction; the base is fixed to the ground.

[0008] Preferably, the drilling and grinding mechanism includes: an oil chamber, an oil chamber is provided in the No. 1 slider and directly below the shovel; a piston rod is slidably connected to the oil chamber; an elastic member is fixedly connected between the bottom of the piston rod and the bottom of the oil chamber; an oil pipe is provided at the bottom of the oil chamber, the oil pipe extends to the top of the right end of the No. 1 slider and is connected to a branch pipe, the branch pipe is horizontally arranged, and a push piston is slidably connected in the branch pipe; a drill plate, a plurality of drill rods are provided on the drill plate, and holes are provided at positions corresponding to the drill rods on the forming insert.

[0009] Preferably, the push piston is fixedly connected to a push plate at one end close to the forming insert, and the push plate is made of an electromagnet. The drill plate is slidably connected to the No. 1 slider and contacts the push plate, and the forming insert and the drill plate are both detachably connected.

[0010] Preferably, the oil pipe is connected to a plurality of branch pipes, each of the branch pipes is slidably connected to a push piston, each of the push pistons is fixedly connected to the push plate, and the push pistons are evenly distributed on the push plate from top to bottom.

[0011] Preferably, the horizontal cross-sectional area of ​​the oil chamber is larger than the sum of the vertical cross-sectional areas of all branch pipes.

[0012] When the shovel moves downward, the hard material insert squeezes the No. 1 slider and the No. 2 slider to form the component. When the component is formed, the bottom of the shovel does not contact the piston rod; the elastic part can be a metal spring or a nitrogen spring; the oil chamber, oil pipe and branch pipe are all filled with hydraulic oil and the oil chamber, oil pipe and branch pipe are interconnected; the forming insert can be fixed to the No. 1 slider and the No. 2 slider by bolt connection, the push plate is made of an electromagnet, the drill plate is slidably connected to the No. 1 slider and contacts the push plate, the drill plate is a magnetic material, and the drill rod is a non-magnetic material.

[0013] Preferably, the drill rod is rotatably connected to the drill plate, the No. 1 slider is embedded in and connected to the No. 1 plate close to the forming insert, the No. 1 plate is provided with a hole corresponding to the drill rod, the No. 1 plate is fixedly connected in the hole, the drill rod is provided with a straight groove and a spiral groove, the straight groove is communicated with the spiral groove, and the spiral groove is located on the drill rod close to the drill plate.

[0014] Preferably, the outer surface of the drill rod is rough.

[0015] Slider No. 1 is embedded in the position close to the forming insert and is connected to plate No. 1, that is, plate No. 1 can be fixed to slider No. 1 by means of a clamping block and a clamping groove; the straight groove is connected to the spiral groove, and block No. 1 can move in the straight groove and the spiral groove; the length of the drill rod must be greater than the depth of the hole.

[0016] Preferably, a collecting groove is provided on the position of the No. 2 slider corresponding to the molding insert, the bottom of the collecting groove is fixedly connected to the No. 1 spring, and the top of the No. 1 spring is fixedly connected to the collecting plate; a rack is fixedly connected to the No. 1 slider, and the rack is located at the contact position between the No. 1 slider and the No. 2 slider, and a rotating gear is rotatably connected in the No. 2 slider, and the rotating gear is engaged with the rack, and a winding shaft is fixedly connected to the rotating gear, and a traction rope is wound on the winding shaft, and the traction rope extends into the collecting groove and is fixedly connected to the bottom of the collecting plate.

[0017] When the shovel moves downward and drives the forming insert extrusion slider No. 2 to move to the right relative to slider No. 1, the rotating gear rotates, and the winding shaft reels the traction rope. When slider No. 2 stops moving to the right, the traction rope pulls the collection plate to the bottom of the collection tank; when slider No. 2 moves to the left relative to slider No. 1, the rotating gear rotates, driving the winding shaft to rotate, releasing the traction rope, and the collection plate moves upward under the elastic force of spring No. 1; the traction rope can be a wire rope to increase its service life.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The linkage mold described in the present invention, when the shovel moves downward, the hard material insert squeezes the No. 1 slider and the No. 2 slider to form the component. When the component is completed, the shovel continues to move downward, squeezing the piston rod, so that the piston rod overcomes the elastic force of the elastic member and moves downward. The piston rod squeezes the hydraulic oil in the oil chamber, pushing the piston to the left, thereby driving the push plate to the left; when the push plate moves to the left, it drives the drill plate to the left, thereby driving the drill rod to extend from the forming insert to punch the formed component. Therefore, after the part side is formed, this arrangement uses the side forming mold to extrude and position the part, and immediately completes the punching operation.

[0020] 2. The linkage mold described in the present invention, when the drill rod is drilling a hole in a component, block No. 1 is located in the straight groove, when the drilling is completed, block No. 1 moves into the spiral groove, and the drill rod continues to move to the left. Since the drill rod is rotatably connected to the drill plate, and the outer surface of the drill rod is rough, and the No. 1 plate is stationary, the drill rod starts to rotate, thereby achieving the grinding of the drilled hole. Of course, the length of the drill rod is set here to be greater than the depth of the drilled hole. Similarly, when the drill rod returns to its position, block No. 1 is still located in the spiral groove, and the drill rod will still rotate to continue grinding the drilled hole. Therefore, this setting reduces burrs in the drilled hole.

[0021] 3. The linkage mold described in the present invention, when the shovel moves downward to drive the molding insert to extrude the No. 2 slider to move to the right relative to the No. 1 slider, since the rotating gear is engaged with the rack and the rack is located in the No. 1 groove, the rotating gear rotates and the winding shaft reels the traction rope. When the No. 2 slider stops moving to the right, the traction rope pulls the collecting plate to the bottom of the collecting groove. At this time, the shovel continues to move downward, the stamping waste enters the collecting groove and falls on the collecting plate. After the punching is completed, the shovel moves up, the drill rod returns to its position first, and then when the No. 2 slider moves to the left relative to the No. 1 slider, the rotating gear rotates, driving the winding shaft to rotate, releasing the traction rope, and the collecting plate moves upward under the elastic force of the No. 1 spring, bringing up the stamping waste, making it convenient for the staff to clean up the stamping waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a perspective view of the present invention;

[0024] Figure 2 is a cross-sectional view of the present invention;

[0025] Figure 3 yes Figure 2 A local enlarged view of point A;

[0026] Figure 4 yes Figure 2 A local enlarged view of point B;

[0027] Figure 5 yes Figure 2 A local enlarged view of point C;

[0028] Figure 6 yes Figure 2 A local enlarged view of point D;

[0029] Figure 7 is a perspective view of a drill rod of the present invention;

[0030] Figure 8 It is a three-dimensional diagram of plate No. 1 of the present invention;

[0031] In the figure: 1. Shovel; 11. Hard material insert; 2. Base; 21. Sliding groove; 3. Slider No. 1; 31. Cavity No. 1; 32. Slot No. 1; 33. Rack; 4. Nitrogen spring; 5. Slider No. 2; 51. Collecting trough; 52. Spring No. 1; 53. Collecting plate; 54. Rotating gear; 55. Winding shaft; 56. Pulling rope; 6. Molding insert; 7. Drilling and grinding mechanism; 71. Oil chamber; 72. Piston rod; 73. Elastic part; 74. Oil pipe; 75. Branch pipe; 76. Push piston; 761. Push plate; 77. Drill plate; 771. Drill rod; 772. Straight groove; 773. Spiral groove; 8. Plate No. 1; 81. Block No. 1. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] like Figure 1 as well as Figure 2 As shown, a linkage mold described in the present invention includes: a shovel 1, hard material inserts 11 are provided on both sides of the bottom of the shovel 1; a base 2, a sliding groove 21 is provided on the top of the base 2; a No. 1 slider 3, the No. 1 slider 3 is slidably installed in the sliding groove 21, and a nitrogen spring 4 is fixedly installed between the No. 1 slider 3 and the side wall of the sliding groove 21, the top of the No. 1 slider 3 is provided with a No. 1 cavity 31, and the bottom of the No. 1 cavity 31 is provided with a No. 1 groove 32; a No. 2 slider 5, the No. 2 slider 5 is located in the No. 1 cavity 31 and is slidably connected to the No. 1 groove 32, a nitrogen spring 4 is fixedly connected between the No. 2 slider 5 and the side wall of the No. 1 groove 32, and the No. 2 slider 5 and the right side of the No. 1 cavity 31 are both provided with a molding insert 6; a drilling and grinding mechanism 7, a drilling and grinding mechanism 7 is provided in the No. 1 slider 3 and the No. 2 slider 5, and the drilling and grinding mechanism 7 uses the downward movement of the shovel 1 as power to drill holes in the formed parts and grind the drilled holes.

[0034] During operation, in the process of producing automobile parts, since some parts need to be formed at negative angles, the principle of stamping side punching, i.e. side forming, is often used to process parts that meet the requirements; in this application, the shovel 1 moves downward, and the shovel 1 can be driven by a hydraulic device, such as a hydraulic press, and hard material inserts 11 are fixedly provided on both sides of the bottom of the shovel 1. The connection between the hard material insert 11 and the shovel 1 can be a bolt connection, such as Figure 2 As shown, the length of the hard material insert 11 on the right side in the vertical direction is greater than the length of the hard material insert 11 on the left side in the vertical direction. Therefore, when the shovel 1 moves down, the hard material insert 11 on the right side first contacts the second slider 5. The second slider 5 is squeezed to the right by the hard material insert 11 on the right side, driving the molding insert 6 to reach the molding position and stop. When the shovel 1 moves down again, the second slider 5 stops, and the hard material insert 11 on the left side contacts the first slider 3, thereby squeezing the first slider 3 to move to the left in the sliding groove 21 (the base 2 is fixed), so the first slider The forming insert 6 on the No. 1 slider 3 also moves to the left, and cooperates with the forming insert 6 on the No. 2 slider 5 to extrude the product; since the nitrogen spring 4 is fixedly installed between the No. 1 slider 3 and the side wall of the sliding groove 21, and the nitrogen spring 4 is also fixedly connected between the No. 2 slider 5 and the side wall of the No. 1 groove 32, the nitrogen spring 4 is compressed during the above process. When the molding is completed, the shovel 1 moves up, the nitrogen spring 4 is reset, and the forming inserts 6 on the No. 1 slider 3 and the No. 2 slider 5 are separated from the product, so it is convenient for the demoulding of the product; the above structure is suitable for negative angle molding The invention relates to a mold for forming or shaping, and takes into account the feeding and stripping of products in the vertical direction; however, when using the side forming process to produce some parts, it is sometimes necessary to perform a punching operation on the formed parts. Usually, when producing these parts, it is necessary to take out the parts after the side forming is completed, and then put them into the punching mold for punching. To this end, on the one hand, the parts are taken out after side forming and put back into the punching mold for positioning and punching, which undoubtedly increases the operation steps and reduces production efficiency; on the other hand, when positioning the formed parts, if the positioning is inaccurate, it is likely to cause inaccurate hole position and produce errors; and the holes punched in the prior art usually contain more burrs, which affects the quality of the holes punched; therefore, a drilling and grinding mechanism 7 is provided in the No. 1 slider 3 and the No. 2 slider 5. The drilling and grinding mechanism 7 uses the downward movement of the shovel machine 1 as the power to drill the formed parts and grind the drilled holes, so as to realize immediate punching of the formed parts, combine forming and punching into one, save the positioning process, and grind the holes to reduce burrs.

[0035] As a specific embodiment of the present invention, Figure 2As shown, the drilling and grinding mechanism 7 includes: an oil chamber 71, an oil chamber 71 is provided in the No. 1 slider 3 and directly below the shovel 1; a piston rod 72 is slidably connected to the oil chamber 71; an elastic member 73 is fixedly connected between the bottom of the piston rod 72 and the bottom of the oil chamber 71; an oil pipe 74 is opened at the bottom of the oil chamber 71, the oil pipe 74 extends to the top of the right end of the No. 1 slider 3 and is connected to a branch pipe 75, the branch pipe 75 is horizontally arranged, and a pushing piston 76 is slidably connected in the branch pipe 75; a drill plate 77, a plurality of drill rods 771 are provided on the drill plate 77, and holes are provided at positions corresponding to the drill rods 771 on the forming insert 6.

[0036] like Figure 2 As shown, the end of the pushing piston 76 close to the molding insert 6 is fixedly connected to a pushing plate 761, and the pushing plate 761 is made of an electromagnet. The drilling plate 77 is slidingly connected to the No. 1 slider 3 and contacts the pushing plate 761, and the molding insert 6 and the drilling plate 77 are both detachably connected.

[0037] like Figure 2 as well as Figure 6 As shown, the oil pipe 74 is connected to a plurality of branch pipes 75 , each of which is slidably connected to a push piston 76 , each of which is fixedly connected to a push plate 761 and is evenly distributed on the push plate 761 from top to bottom.

[0038] The horizontal cross-sectional area of ​​the oil chamber 71 is larger than the sum of the vertical cross-sectional areas of all the branch pipes 75 .

[0039] During operation, when the shovel 1 moves downward, the hard material insert 11 squeezes the No. 1 slider 3 and the No. 2 slider 5 to form the parts. When the parts are completed, the bottom of the shovel 1 does not contact the piston rod 72. When the parts are completed and need to be punched, the shovel 1 continues to move downward, squeezing the piston rod 72, so that the piston rod 72 overcomes the elastic force of the elastic member 73 and moves downward. The elastic member 73 here can be a metal spring or a nitrogen spring 4. When the piston rod 72 moves downward, since the oil chamber 71, the oil pipe 74 and the branch pipe 75 are all filled with hydraulic oil and the oil chamber 71, the oil pipe 74 and the branch pipe 75 are interconnected, the piston rod 72 squeezes the hydraulic oil in the oil chamber 71, pushing the piston 7 6 moves left, thereby driving the push plate 761 to move left; since the oil pipe 74 is connected to a plurality of branch pipes 75, each branch pipe 75 is slidably connected with a push piston 76, each push piston 76 is fixedly connected to the push plate 761 and the push pistons 76 are evenly distributed on the push plate 761 from top to bottom, so when the push piston 76 drives the push plate 761 to move, it can evenly apply force to the moving plate up and down, so that the push plate 761 is evenly stressed, easy to punch and not easy to damage; when the push plate 761 moves left, it drives the drill plate 77 to move left, thereby driving the drill rod 771 to extend from the forming insert 6 to punch the formed parts; it should be noted that the forming insert 6 can be screwed in by bolts The connection is fixed on the No. 1 slider 3 and the No. 2 slider 5. The push plate 761 is made of an electromagnet. The drill plate 77 is slidably connected to the No. 1 slider 3 and contacts the push plate 761. Therefore, the push plate 761 and the drill plate 77 are connected by energizing the electromagnet (the drill plate 77 is a magnetic material, and the drill rod 771 is a non-magnetic material). Therefore, the molding insert 6 and the drill plate 77 can be replaced (when replacing the drill plate 77, the electromagnet is turned off). In this way, the molding insert 6 and the drill plate 77 can be replaced when different parts need to be processed. In addition, the horizontal cross-sectional area of ​​the oil chamber 71 is larger than the sum of the vertical cross-sectional areas of all the branch pipes 75. Therefore, the distance that the piston 76 moves left is greater than the distance that the piston rod 7 moves left. 2 downward movement distance, thereby realizing that when the shovel 1 continues to move downward a short distance, the drill rod 771 can also move a long distance, ensuring that the drill rod 771 can penetrate the parts and increasing the movement sensitivity of the drill rod 771. On the other hand, this setting realizes that the thrust of the piston 76 on the push plate 761 is greater than the thrust of the shovel 1 on the piston rod 72, thereby ensuring that the drill rod 771 can obtain sufficient power to complete the drilling of the parts; when the drilling is completed, the shovel 1 moves upward, and the piston rod 72 is reset under the elastic force of the elastic member 73. Similarly, the drill rod 771 is reset, and the shovel 1 continues to move upward. The molding inserts 6 on the No. 1 slider 3 and the No. 2 slider 5 are separated from each other, completing the product demoulding.

[0040] As a specific embodiment of the present invention, Figure 2 、 Figure 5 、 Figure 7 as well as Figure 8As shown, the drill rod 771 is rotatably connected to the drill plate 77, the No. 1 slider 3 is embedded in the No. 1 plate 8 close to the molding insert 6, the No. 1 plate 8 is provided with a hole corresponding to the drill rod 771, and the No. 1 block 81 is fixedly connected in the hole on the No. 1 plate 8, and the drill rod 771 is provided with a straight groove 772 and a spiral groove 773, the straight groove 772 is communicated with the spiral groove 773, and the spiral groove 773 is located on the drill rod 771 near the drill plate 77.

[0041] The outer surface of the drill rod 771 is rough.

[0042] During operation, the No. 1 slider 3 is closely attached to the part of the molding insert 6 and is embedded in the No. 1 plate 8, that is, the No. 1 plate 8 can be fixed to the No. 1 slider 3 by means of a card block and a card slot. This arrangement facilitates the replacement of the No. 1 plate 8, and different No. 1 plates 8 can be replaced according to different drill plates 77; a hole corresponding to the drill rod 771 is provided on the No. 1 plate 8, and a No. 1 block 81 is fixedly connected in the hole on the No. 1 plate 8, and a straight groove 772 and a spiral groove 773 are provided on the drill rod 771, and the straight groove 772 and the spiral groove 773 are communicated with each other. The No. 1 block 81 can move in the straight groove 772 and the spiral groove 773. When the drill rod 771 is zeroed When the component is being drilled, block No. 1 81 is located in the straight groove 772. When the drilling is completed, block No. 1 81 moves into the spiral groove 773, and the drill rod 771 continues to move to the left. Since the drill rod 771 is rotatably connected to the drill plate 77, and the outer surface of the drill rod 771 is rough, and the No. 1 plate 8 is stationary, the drill rod 771 starts to rotate, thereby grinding the drilled hole. Of course, the length of the drill rod 771 is set here to be greater than the depth of the drilled hole. Similarly, when the drill rod 771 returns to its position, block No. 1 81 is still located in the spiral groove 773, and the drill rod 771 will still rotate to continue grinding the drilled hole. Therefore, this setting reduces burrs in the drilled hole.

[0043] As a specific embodiment of the present invention, Figure 2 、 Figure 3 as well as Figure 4 As shown, a collecting groove 51 is provided on the position of the No. 2 slider 5 corresponding to the molding insert 6, and the bottom of the collecting groove 51 is fixedly connected to the No. 1 spring 52, and the top of the No. 1 spring 52 is fixedly connected to the collecting plate 53; the No. 1 slider 3 is fixedly connected to the rack 33, and the rack 33 is located at the contact position between the No. 1 slider 3 and the No. 2 slider 5, and a rotating gear 54 is rotatably connected to the No. 2 slider 5, and the rotating gear 54 is engaged with the rack 33, and a winding shaft 55 is fixedly connected to the rotating gear 54, and a traction rope 56 is wound on the winding shaft 55, and the traction rope 56 extends into the collecting groove 51 and is fixedly connected to the bottom of the collecting plate 53.

[0044] During operation, when the shovel 1 moves downward to drive the forming insert 6 to squeeze the second slider 5 to move rightward relative to the first slider 3, the rotating gear 54 is engaged with the rack 33, and the rack 33 is located in the first groove 32, so the rotating gear 54 rotates. Since a winding shaft 55 is fixedly connected to the rotating gear 54, and a traction rope 56 is wound around the winding shaft 55, when the rotating gear 54 rotates, the winding shaft 55 reels the traction rope 56. When the second slider 5 stops moving to the right, the traction rope 56 pulls the collecting plate 53 to the bottom of the collecting tank 51. At this time, the shovel 1 continues to move downward, and the second slider 5 is stationary relative to the first slider 3. , then the drill rod 771 punches the parts. Since the collecting tank 51 is located on the right side of the forming insert 6 on the No. 2 slider 5, the stamping waste enters the collecting tank 51 and falls on the collecting plate 53. After the punching is completed, the shovel 1 moves up and the drill rod 771 returns to its position first. Then, when the No. 2 slider 5 moves to the left relative to the No. 1 slider 3, the rotating gear 54 rotates, driving the winding shaft 55 to rotate, releasing the traction rope 56, and the collecting plate 53 moves upward under the elastic force of the No. 1 spring 52, bringing up the stamping waste, making it convenient for the staff to clean up the stamping waste; the traction rope 56 here can be a wire rope to increase its service life.

Claims

1. A linkage mold, characterized by: include: A shovel (1), wherein hard material inserts (11) are provided on both sides of the bottom of the shovel (1); A base (2), wherein a sliding groove (21) is provided on the top of the base (2); A No. 1 slider (3), the No. 1 slider (3) is slidably installed in the sliding groove (21), and a nitrogen spring (4) is fixedly installed between the No. 1 slider (3) and the side wall of the sliding groove (21), the No. 1 slider (3) is provided with a No. 1 cavity (31) at the top, and the No. 1 cavity (31) is provided with a No. 1 groove (32) at the bottom; A second slider (5), the second slider (5) is located in the first cavity (31) and is slidably connected to the first groove (32), a nitrogen spring (4) is fixedly connected between the second slider (5) and the side wall of the first groove (32), and a molding insert (6) is provided on the right side of the second slider (5) and the first cavity (31); A drilling and grinding mechanism (7) is provided in the first slider (3) and the second slider (5). The drilling and grinding mechanism (7) uses the downward movement of the shovel (1) as a driving force to drill holes in the formed parts and grind the drilled holes. The drilling and grinding mechanism (7) comprises: An oil chamber (71) is provided in the first slider (3) and directly below the shovel (1); a piston rod (72) is slidably connected in the oil chamber (71); an elastic member (73) is fixedly connected between the bottom of the piston rod (72) and the bottom of the oil chamber (71); an oil pipe (74) is provided at the bottom of the oil chamber (71), the oil pipe (74) extends to the top of the right end of the first slider (3) and is connected to a branch pipe (75), the branch pipe (75) is horizontally provided, and a push piston (76) is slidably connected in the branch pipe (75); A drill plate (77), wherein a plurality of drill rods (771) are provided on the drill plate (77), and holes are provided on the molding insert (6) at locations corresponding to the drill rods (771); One end of the push piston (76) close to the molding insert (6) is fixedly connected to a push plate (761), and the push plate (761) is made of an electromagnet. The drill plate (77) is slidably connected to the first slider (3) and contacts the push plate (761), and the molding insert (6) and the drill plate (77) are both detachably connected.

2. The linkage mold according to claim 1, characterized in that: The oil pipe (74) is connected to a plurality of branch pipes (75), each of which is slidably connected to a push piston (76), each of which is fixedly connected to a push plate (761), and the push pistons (76) are evenly distributed on the push plate (761) from top to bottom.

3. The linkage mold according to claim 2, characterized in that: The horizontal cross-sectional area of ​​the oil chamber (71) is larger than the sum of the vertical cross-sectional areas of all the branch pipes (75).

4. The linkage mold according to claim 3, characterized in that: The drill rod (771) is rotatably connected to the drill plate (77); the No. 1 slider (3) is closely attached to the molded insert (6) and is embedded in the No. 1 plate (8); a hole corresponding to the drill rod (771) is provided on the No. 1 plate (8); a No. 1 block (81) is fixedly connected to the hole on the No. 1 plate (8); a straight groove (772) and a spiral groove (773) are provided on the drill rod (771); the straight groove (772) and the spiral groove (773) are communicated with each other, and the spiral groove (773) is located on the drill rod (771) at a position close to the drill plate (77).

5. The linkage mold according to claim 4, characterized in that: The outer surface of the drill rod (771) is rough.

6. The linkage mold according to claim 5, characterized in that: A collecting groove (51) is provided on the position of the second slider (5) corresponding to the molding insert (6), the bottom of the collecting groove (51) is fixedly connected to a first spring (52), and the top of the first spring (52) is fixedly connected to a collecting plate (53); a rack (33) is fixedly connected to the first slider (3), and the rack (33) is located at the contact position between the first slider (3) and the second slider (5); a rotating gear (54) is rotatably connected in the second slider (5), and the rotating gear (54) is meshed with the rack (33); a winding shaft (55) is fixedly connected to the rotating gear (54), and a traction rope (56) is wound around the winding shaft (55), and the traction rope (56) extends into the collecting groove (51) and is fixedly connected to the bottom of the collecting plate (53).

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