A preparation process for a brake shoe roller retainer

Abstract

The present application discloses a brake shoe roller retainer preparation process, which relates to the brake shoe technical field. The present application uses a brake shoe roller retainer stamping device, which includes: a workbench; a mounting frame. The present application adopts a coordinated design of a model block, a fixing mechanism, a guide groove, and a pushing mechanism, which can move the semi-finished material formed by stamping to a receiving groove. Compared with the prior art, the scraps connected together are not easy to interfere with the movement of the semi-finished material. Subsequently, the semi-finished material in the receiving groove can be folded into a finished product through the coordinated design of the receiving groove, the slide groove, the slider, the stop block, the splint and the transmission mechanism. In the present application, the two ends of the semi-finished material are abutted by the splint and the stop block, so that the verticality of the material after bending is better, the contact area with the roller after installation is smaller, and its service life is longer. In the present application, the folding process and the stamping process are carried out simultaneously, the device has good linkage, which liberates labor and can effectively improve the production efficiency of finished products.

Description

Technical Field

[0001] The present application relates to the technical field of brake shoes, and in particular to a process for preparing a brake shoe roller retainer. Background Art

[0002] The roller is rotatably mounted on the brake shoe, with retainers sleeved on both ends of its rotating shaft. The retainers are located between the roller and the brake shoe. The roller can maintain an appropriate distance from the brake shoe through the retainer and roll correctly under the guidance of the retainer, so that the contact area between the roller and the brake shoe is small, which reduces the friction resistance when the roller rotates and reduces the wear of the roller.

[0003] In the existing production process of brake shoe roller retainers, it is necessary to use stamping equipment to punch, stamp and shape the plate. Because the two ends of the retainer are consistent in size with the roller ends, and a circular hole is opened to accommodate the roller shaft, which is in a circular ring shape. When the retainer is stamped, the scraps produced are mostly connected together. When the retainer semi-finished product is moved, it is easy to be interfered by the scraps. Therefore, the folding process of most retainer semi-finished products is carried out separately from the stamping process. The staff is required to put the processed retainer semi-finished products into the folding equipment, which leads to high labor intensity for the staff and low production efficiency of the finished retainer. In order to reasonably improve this problem, the present application proposes a brake shoe roller retainer preparation process. Summary of the Invention

[0004] The purpose of this application is to provide an effective and reasonable improvement to the problems presented in the above background technology. This application provides a brake shoe roller retainer preparation process.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] A brake shoe roller retainer preparation process uses a brake shoe roller retainer stamping device, which includes:

[0007] Workbench;

[0008] A mounting frame is fixedly mounted on the top of the workbench, a hydraulic cylinder is mounted on the mounting frame, an output end of the hydraulic cylinder passes through the mounting frame, and a mounting plate is fixedly mounted on the mounting frame;

[0009] A lower mold is mounted on the workbench, a stamping groove is provided on the top of the lower mold, a model block is slidably fitted in the vertical direction in the stamping groove, a compression spring is connected between the bottom of the model block and the stamping groove, a fixing mechanism for fixing the model block is installed in the stamping groove, an upper mold is mounted on the bottom of the mounting plate, and a stamping block is configured at the bottom of the upper mold for inserting into the stamping groove;

[0010] A fixing plate is arranged on one side of the lower mold, and a receiving groove is opened on the top of the fixing plate, and a guide groove is constructed in the stamping groove, and the bottom of the guide groove and the receiving groove are in the same plane, and the two are connected to each other. A pushing mechanism is installed on the other side of the lower mold, and a slide groove is constructed in the middle of the receiving groove, and a slider is provided in the slide groove for vertical sliding cooperation, and a return spring is connected between the bottom of the slider and the slide groove, and a stop block is constructed on the mounting plate, and two hinge grooves are constructed at the bottom of the receiving groove, and the two hinge grooves are axially symmetrically distributed on both sides of the slider, and the hinge grooves are both located in the extending direction of the guide groove, and a splint is hinged in the hinge groove, and the hinge end of the splint is close to the slider, and the two splints are connected to the slider through a transmission mechanism;

[0011] A material discharge mechanism, which is installed on one side of the receiving tank and is used to eject the finished product from the receiving tank;

[0012] The following steps are required to produce a finished brake shoe roller retainer using the above brake shoe roller retainer stamping device:

[0013] S1: Feeding: The pre-punched strip sheet is pushed to the top of the lower mold through the sheet feeding device;

[0014] S2: Stamping: The upper and lower dies are opened and closed to complete the blanking between the upper and lower dies, and the semi-finished product material and the model block are pressed into the stamping groove by the stamping block;

[0015] S3: Pushing: The model block is fixed by a fixing mechanism. After the output end of the hydraulic cylinder is lifted, the semi-finished material can be pushed from the guide groove into the receiving groove through the pushing device;

[0016] S4: Folding: The output end of the hydraulic cylinder drives the mounting plate downward, and the stop block presses the semi-finished material and the slider into the chute. Driven by the transmission mechanism, the splint moves relative to each other along the hinge point to bend the semi-finished material.

[0017] S5: Unloading: The finished product can be ejected from the receiving tank through the unloading mechanism.

[0018] Furthermore, a guide column is constructed in the sliding groove, the guide column passes through the bottom of the sliding block, and the return spring is sleeved on the outer side of the guide column.

[0019] Furthermore, the fixing mechanism includes an electromagnet fixedly installed in the stamping groove, and a magnetic block is fixedly installed on the bottom of the model block, and the magnetic block is magnetically matched with the electromagnet.

[0020] Furthermore, an insert block is constructed at the bottom of the model block, a slot for accommodating the insert block is opened at the bottom of the stamping groove, a gear is rotatably installed on one side of the slot, and teeth are constructed on one side of the insert block, and the teeth are engaged with the gear.

[0021] Furthermore, the pushing mechanism includes a first electric push rod installed on the workbench, the extension direction of the movable end of the first electric push rod is consistent with the extension direction of the guide groove, a push block is slidingly provided in the guide groove, a connecting plate is fixedly connected to the push block, the connecting plate passes through the guide groove, and is connected to the movable end of the first electric push rod.

[0022] Furthermore, the bottom of the push block contacts the bottom of the guide groove, and the bottom of the connecting plate is connected to the top of the push block.

[0023] Furthermore, the transmission mechanism includes a receiving groove constructed in the fixed plate, a fixed block is constructed on one side of the slider, the fixed block is slidably matched with the receiving groove, and racks are connected on both sides of the fixed block. The first transmission gear, the second transmission gear and the third transmission gear are rotatably installed in the receiving groove, the first transmission gear, the second transmission gear and the third transmission gear are meshed in sequence from top to bottom, and the three are axially symmetrically distributed on both sides of the fixed block, and the two third transmission gears are meshed with the racks, and the two first transmission gears are respectively fixed to the two splint hinge shafts.

[0024] Furthermore, the unloading mechanism includes a discharge port opened on one side of the accommodating groove, the diameter of the discharge port is smaller than the length of the accommodating groove and larger than the width of the slide groove, and a second electric push rod is installed on the top of the workbench, the output end of the second electric push rod passes through the other side of the accommodating groove, and a push plate is fixedly installed on the output end of the second electric push rod.

[0025] Furthermore, a clamping slot is constructed on the inner wall of the accommodating slot, and the clamping slot is used to accommodate the push plate.

[0026] Furthermore, L-shaped blocks are provided on both sides of the discharge port, and the L-shaped blocks include a vertical section and a horizontal section that are perpendicularly connected to each other, the ends of the vertical sections are connected to the fixed plate, and the ends of the horizontal sections extend relatively to each other, and blocks are constructed thereon, and the blocks extend from the discharge port toward the card slot, and a spacing is formed between the two blocks for accommodating the block.

[0027] The beneficial effects of this application are as follows:

[0028] 1. The present application adopts the coordinated design of the model block, the fixing mechanism, the guide groove and the pushing mechanism, so that the semi-finished material formed by stamping can be moved to the receiving groove. Compared with the existing technology, the connected scraps are not easy to interfere with the movement of the semi-finished material. Subsequently, the semi-finished material in the receiving groove can be folded into a finished product through the coordinated design of the receiving groove, the slide groove, the slider, the stop block, the splint and the transmission mechanism. In the present application, the two ends of the semi-finished material are abutted by the splint and the stop block, so that the verticality of the material after bending is better, the contact area with the roller after installation is smaller, and its service life is longer. In the present application, the folding process and the stamping process are carried out simultaneously, the device has good linkage, which liberates labor and can effectively improve the production efficiency of finished products.

[0029] 2. This application adopts a design of magnetic coordination between a magnetic block and an electromagnet. When the model block contacts the bottom of the stamping slot, the electromagnet is energized so that the magnetic block can be adsorbed by the electromagnet. At this time, the model block cannot be lifted. After the pushing mechanism completes pushing and resetting, the electromagnet can be de-energized, and the model block is reset under the action of the compression spring.

[0030] 3. This application adopts a design of teeth and gears, which can drive the gears to rotate when the model block moves up and down. When the model block is reset, the gears can be driven to rotate by the plug-in block, thereby releasing the kinetic energy absorbed by the compression spring, so that the model block can be quickly reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural diagram of this application;

[0032] Figure 2 This application Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 This is a partial half-section schematic diagram of the stamping groove of the present application;

[0034] Figure 4 This application Figure 3 Schematic diagram of half section of the structure;

[0035] Figure 5 This application Figure 4 Enlarged view of point B in the middle;

[0036] Figure 6 This is a half-section schematic diagram of the transmission mechanism structure of the present application;

[0037] Figure 7 This application Figure 6 Enlarged view of point C in the middle;

[0038] Reference numerals: 1, workbench; 2, mounting frame; 3, hydraulic cylinder; 4, mounting plate; 5, lower die; 6, punching groove; 7, model block; 8, compression spring; 9, fixing mechanism; 10, upper die; 11, punching block; 12, fixing plate; 13, receiving groove; 14, guide groove; 15, pushing mechanism; 16, slide groove; 17, slider; 18, return spring; 19, stop block; 20, hinge groove; 21, clamping plate; 22, transmission mechanism; 2201, first transmission gear; 2202, second transmission gear; 2203 , the third transmission gear; 23. unloading mechanism; 24. guide column; 25. electromagnet; 26. magnetic block; 27. plug-in block; 28. slot; 29. ​​gear; 30. teeth; 31. first electric push rod; 32. push block; 33. connecting plate; 34. storage slot; 35. fixed block; 36. rack; 37. discharge port; 38. second electric push rod; 39. push plate; 40. slot; 41. L-shaped block; 42. vertical section; 43. horizontal section; 44. block; 45. support plate; 46. waist hole; 47. cylinder. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0040] like Figure 1-Figure 7 As shown, a brake shoe roller retainer preparation process proposed in one embodiment of the present application uses a brake shoe roller retainer stamping device, which includes:

[0041] The workbench 1 has a support plate 45 at its bottom;

[0042] The mounting frame 2 is fixedly mounted on the top of the workbench 1. A hydraulic cylinder 3 is mounted on the mounting frame 2. The output end of the hydraulic cylinder 3 passes through the mounting frame 2. The output direction of the hydraulic cylinder 3 is perpendicular to the workbench 1. A mounting plate 4 is fixedly mounted on the mounting frame 2. The bottom surface of the mounting plate 4 is parallel to the top of the workbench 1.

[0043] The lower mold 5 is installed on the workbench 1. The bottom of the lower mold 5 is fixedly installed on the support plate 45 of the workbench 1 by a bolt assembly. The top of the lower mold 5 passes through the workbench 1. A stamping groove 6 is provided on the top of the lower mold 5. A model block 7 is vertically slidably fitted in the stamping groove 6. The bottom of the model block 7 is constructed with a cylinder 47. The cylinder 47 slides through the bottom of the stamping groove 6. A compression spring 8 is connected between the bottom of the model block 7 and the stamping groove 6. The compression spring 8 is sleeved on the outer surface of the cylinder 47. The compression spring 8 is used to provide a thrust for forcing the model block 7 to lift from the bottom of the stamping groove 6. A fixing mechanism 9 for fixing the model block 7 is installed in the stamping groove 6. When the model block 7 contacts the bottom of the stamping groove 6, the top of the model block 7 is in contact with the stamping groove 6. The bottom is coplanar, the fixing mechanism 9 is installed at the bottom of the stamping groove 6, the bottom of the mounting plate 4 is installed with an upper mold 10, and the bottom of the upper mold 10 is constructed with a stamping block 11 for inserting into the stamping groove 6. The cross sections of the model block 7, the stamping groove 6 and the stamping block 11 are consistent with the semi-finished product holder. When the hydraulic cylinder 3 is working, the strip plate placed on the lower mold 5 can be pressed into the stamping groove 6, and the model block 7 is slowly lowered under the resistance of the stamping block 11. Therefore, when the semi-finished product material enters the stamping groove 6, it is not easy to flip over in the stamping groove 6. When the semi-finished product material falls on the bottom of the stamping groove 6, the fixing mechanism 9 can fix the model block 7, so that when the hydraulic cylinder 3 drives the stamping block 11 to lift, the semi-finished product material is not easily pushed out of the stamping groove 6 by the model block 7;

[0044] The fixing plate 12 is arranged on one side of the lower mold 5. The bottom of the fixing plate 12 is fixedly installed on the support plate 45 of the workbench 1 by a bolt assembly. The top of the fixing plate 12 passes through the workbench 1. A receiving groove 13 is provided on the top of the fixing plate 12. A guide groove 14 is constructed in the stamping groove 6. The bottom of the guide groove 14 is higher than the bottom of the stamping groove 6. The width and length of the guide groove 14 are greater than the stamping groove 6, so that the semi-finished material can move in the guide groove 14. The bottom of the guide groove 14 and the receiving groove 13 are in the same plane. The receiving groove 13 and the guide groove 14 are of the same width and are connected to each other so that the semi-finished material can enter the receiving groove 13 from the guide groove 14. A pushing mechanism 15 is installed on the other side of the lower mold 5. After the fixing mechanism 9 fixes the model block 7, the pushing mechanism 15 can push the semi-finished material into the receiving groove 13. The finished material is completely pushed into the receiving groove 13 from the guide groove 14, and the end of the semi-finished material is in conflict with the groove wall of the receiving groove 13. Then, after the pushing mechanism 15 is reset, the fixing mechanism 9 releases the fixation of the model block 7, and the model block 7 is lifted and reset under the action of the compression spring 8. A slide groove 16 is constructed in the middle of the receiving groove 13. The groove width of the slide groove 16 is consistent with the width of the finished product of the retainer. When the end of the semi-finished material conflicts with the groove wall of the receiving groove 13, the slide groove 16 is located in the middle of the semi-finished material. A slider 17 is provided in the vertical sliding fit in the slide groove 16. A reset spring 18 is connected between the bottom of the slider 17 and the slide groove 16. The reset spring 18 is used to provide a thrust forcing the slider 17 to be lifted from the slide groove 16. A stop block 1 is constructed on the mounting plate 4. 9. The cross section of the stopper 19 is slightly smaller than the cross section of the slider 17. Two hinge grooves 20 are constructed at the bottom of the accommodating groove 13. The two hinge grooves 20 are axially symmetrically distributed on both sides of the slider 17, and the hinge grooves 20 are both located in the extension direction of the guide groove 14. A splint 21 is hinged in the hinge groove 20. The length of the splint 21 is consistent with the length of the finished material after folding. The hinged end of the splint 21 is close to the slider 17. When the slider 17 is in the raised state, the end of the slider 17 is coplanar with the top of the splint 21, and the two splints 21 are connected to the slider 17 through the transmission mechanism 22. With such a design, when the mounting plate 4 is pressed down, the stopper 19 can be driven to contact the middle of the semi-finished material. Through the continuous downward pressure of the stopper 19, the slider 17 is pushed, and thereby When the slider 17 is unable to move downward, the middle of the semi-finished material is fitted with the top of the slider 17 by the action of the stop block 19, and both ends of the bent material are perpendicular to the middle of the material under the action of the stop block 19 to complete the processing. Subsequently, the mounting plate 4 is lifted by the hydraulic cylinder 3, and the slider 17 is reset by the action of the reset spring 18. At this time, the clamping plate 21 is driven by the slider 17 to flip back along the hinge point and reset. When the end of the slider 17 contacts the bottom of the accommodating groove 13, the finished material entering the chute 16 can be pushed out from the inside of the chute 16.

[0045] The unloading mechanism 23 is installed on one side of the receiving tank 13 and is used to eject the finished product from the receiving tank 13. After the slider 17 is reset, the unloading mechanism 23 can complete the unloading of the finished product material;

[0046] Because the upper mold 10 and the stop block 19 are both mounted on the mounting plate 4, the stamping of the strip plate and the folding of the semi-finished product can be carried out simultaneously. After the mold block 7 is fixed by the fixing mechanism 9 and the mounting plate 4 is lifted, the slider 17 and the clamping plate 21 are reset, and the unloading mechanism 23 can unload the finished product. The pushing mechanism 15 can push the semi-finished product from the guide groove 14 into the receiving groove 13 and reset it. At this time, the mold block 7 can be reset and the above operation can be repeated.

[0047] The following steps are required to produce a finished brake shoe roller retainer using the above brake shoe roller retainer stamping device:

[0048] S1: feeding: the pre-punched strip plate is pushed to the top of the lower mold 5 by the plate feeding device, and the plate feeding device is an existing structure;

[0049] S2: Stamping: The upper and lower molds 5 are opened and closed to complete the blanking between the upper and lower molds 5, and the semi-finished product material and the mold block 7 are pressed into the stamping groove 6 by the stamping block 11;

[0050] S3: Pushing: The model block 7 is fixed by the fixing mechanism 9. After the output end of the hydraulic cylinder 3 is lifted, the semi-finished product material can be pushed from the guide groove 14 into the receiving groove 13 by the pushing device;

[0051] S4: Folding: The output end of the hydraulic cylinder 3 drives the mounting plate 4 to press down, and the stop block 19 presses the semi-finished material and the slider 17 into the chute 16. The clamping plate 21 moves relative to the hinge point under the drive of the transmission mechanism 22 to bend the semi-finished material;

[0052] S5: Unloading: The finished product can be ejected from the receiving tank 13 through the unloading mechanism 23 .

[0053] The present application adopts the coordinated design of the model block 7, the fixing mechanism 9, the guide groove 14, and the pushing mechanism 15, so that the semi-finished material formed by stamping can be moved to the receiving groove 13. Compared with the existing technology, the connected scraps are not easy to interfere with the movement of the semi-finished material. Subsequently, the semi-finished material in the receiving groove 13 can be folded into a finished product through the coordinated design of the receiving groove 13, the slide groove 16, the slider 17, the stop block 19, the splint 21 and the transmission mechanism 22. In the present application, the two ends of the semi-finished material are abutted by the splint 21 and the stop block 19, so that the verticality of the material after bending is better, the contact area with the roller after installation is smaller, and its service life is longer. In the present application, the folding process and the stamping process are carried out simultaneously, the device has good linkage, frees up labor, and can effectively improve the production efficiency of finished products.

[0054] like Figure 4 As shown, in some embodiments, a guide column 24 is constructed in the slide 16, and the guide column 24 passes through the bottom of the slider 17. Under the action of the guide column 24, the slider 17 is not easily offset when moving, thereby ensuring that the bending angle of the semi-finished material is not easily offset when the semi-finished product is bent, and the return spring 18 is sleeved on the outer side of the guide column 24. With such a design, the return spring 18 can be protected by the guide column 24, so that the return spring 18 is not easily damaged during the compression process.

[0055] like Figure 4 and Figure 5 As shown, in some embodiments, the fixing mechanism 9 includes an electromagnet 25 fixedly installed in the stamping groove 6, and a magnetic block 26 is fixedly installed at the bottom of the model block 7. The magnetic block 26 and the electromagnet 25 are magnetically matched. When the model block 7 contacts the bottom of the stamping groove 6, the electromagnet 25 is energized and the magnetic block 26 is adsorbed by the electromagnet 25. At this time, the model block 7 cannot be lifted. After the pushing mechanism 15 completes pushing and resetting, the electromagnet 25 is de-energized, and the model block 7 is reset under the action of the compression spring 8.

[0056] like Figure 4 and Figure 5 As shown, in some embodiments, an insert block 27 is constructed at the bottom of the model block 7, and a slot 28 for accommodating the insert block 27 is opened at the bottom of the stamping groove 6. The insert block 27 slides in the vertical direction of the groove, and a spur gear 29 is rotatably installed on one side of the slot 28. A tooth 30 is constructed on one side of the insert block 27, and the tooth 30 is engaged with the spur gear 29. By adopting such a design, the spur gear 29 can be driven to rotate when the model block 7 moves up and down. When the model block 7 is reset, the spur gear 29 can be driven to rotate by the insert block 27, thereby releasing the kinetic energy absorbed by the compression spring 8, so that the model block 7 can be quickly reset.

[0057] like Figure 1 and Figure 2As shown, in some embodiments, the pushing mechanism 15 includes a first electric push rod 31 installed on the workbench 1, and the extending direction of the movable end of the first electric push rod 31 is consistent with the extending direction of the guide groove 14. A push block 32 is provided in the guide groove 14 for sliding cooperation, and a connecting plate 33 is fixedly connected to the push block 32. A waist hole 46 for sliding the connecting plate 33 is constructed on the groove wall of the guide groove 14. The connecting plate 33 passes through the guide groove 14 and is connected to the movable end of the first electric push rod 31. When the movable end of the first electric push rod 31 is in an extended state, the connecting plate 33 can slide on the guide groove 14 together with the push block 32, so that the semi-finished material at the bottom of the guide groove 14 can be pushed into the receiving groove 13 by the push block 32 to complete the pushing.

[0058] like Figure 1 and Figure 2 As shown, in some embodiments, the bottom of the push block 32 contacts the bottom of the guide groove 14, and the bottom of the connecting plate 33 is connected to the top of the push block 32. With such a design, the waist hole 46 on the guide groove 14 for sliding the connecting plate 33 does not contact the semi-finished material, thereby preventing the semi-finished material from being easily offset during the movement during the transportation process.

[0059] like Figure 6 and Figure 7As shown, in some embodiments, the transmission mechanism 22 includes a receiving groove 34 constructed in the fixed plate 12, the receiving groove 34 is located on one side of the accommodating groove 13, and a fixed block 35 is constructed on one side of the slider 17. The fixed block 35 slides with the receiving groove 34, and racks 36 are connected to both sides of the fixed block 35. The fixed block 35 is welded and fixed to the rack 36. The first transmission gear 2201, the second transmission gear 2202 and the third transmission gear 2203 are rotatably installed in the receiving groove 34. The first transmission gear 2201, the second transmission gear 2202 and the third transmission gear 2203 are meshed in sequence from top to bottom, and the number of teeth of the first transmission gear 2201 is smaller than that of the second transmission gear 2202, and the number of teeth of the second transmission gear 2202 is smaller than that of the third transmission gear 2203. When the third transmission gear 2203 rotates, it can drive the second transmission gear 2202 and the first transmission gear 2 201 performs an accelerating movement, and there are two groups of first transmission gear 2201, second transmission gear 2202 and third transmission gear 2203, and the two groups of gears are axially symmetrically distributed on both sides of the fixed block 35, and the two third transmission gears 2203 are meshed with the rack 36, and the two first transmission gears 2201 are respectively fixed to the hinge axes of the two splints 21. In this way, when the block 19 presses down and forces the slider 17 to move downward, it can drive the third transmission gear 2203 to rotate, thereby forcing the second transmission gear 2202 and the first transmission gear 2201 meshed therewith to rotate, so that the two splints 21 can perform relative flipping movement along their respective hinge points, thereby folding the two ends of the semi-finished material, and then when the block 19 is lifted, the slider 17 is reset upward under the action of the reset spring 18, and at this time the two splints 21 can be flipped and reset along their respective hinge points.

[0060] like Figure 1 、 Figure 3 and Figure 6 As shown, in some embodiments, the unloading mechanism 23 includes a discharge port 37 opened on one side of the receiving tank 13, the discharge direction of the discharge port 37 is perpendicular to the moving direction of the semi-finished product material entering the receiving tank 13, the diameter of the discharge port 37 is smaller than the length of the receiving tank 13 and larger than the width of the chute 16, the length of the receiving tank 13 is similar to the length of the semi-finished product material, and the width of the chute 16 is larger than the width of the finished product material. A second electric push rod 38 is installed on the top of the workbench 1, and the output end of the second electric push rod 38 passes through the receiving tank 13. On the other side, a push plate 39 is fixedly installed on the output end of the second electric push rod 38. When the slider 17 is reset to push the finished material out of the chute 16, the output end of the second electric push rod 38 extends to push the finished material out of the receiving groove 13 from the discharge port 37 to complete the unloading. When the semi-finished material enters the receiving groove 13 and collides with the inner wall of the receiving groove 13, the second electric push rod 38 can be controlled to extend to make the two ends of the semi-finished material collide with the groove wall of the receiving groove 13, so that the semi-finished material can be parallel to the two clamping plates 21.

[0061] like Figure 1 、 Figure 3 、 Figure 4 and Figure 6 As shown, in some embodiments, a card slot 40 is constructed on the inner wall of the accommodating groove 13, and the card slot 40 is used to accommodate the push plate 39. When the output end of the second electric push rod 38 is in a retracted state, the card slot 40 can accommodate and protect the push plate 39, so that the stop block 19 is not likely to come into contact with the push plate 39 during the downward pressing process, so that the push plate 39 is not likely to be damaged.

[0062] like Figure 1 、 Figure 3 、 Figure 4 and Figure 6 As shown, in some embodiments, L-shaped blocks 41 are provided on both sides of the discharge port 37. The L-shaped blocks 41 include a vertical section 42 and a horizontal section 43 that are perpendicularly connected to each other. The ends of the vertical sections 42 are connected to the fixed plate 12, and the ends of the horizontal sections 43 extend relative to each other. Figure 1 As shown, the opposite sides of the vertical section 42 are in the same plane as the discharge port 37, the bottom of the horizontal section 43 is higher than the top of the finished material, and a clamping block 44 is constructed thereon, the clamping block 44 extends from the discharge port 37 toward the card slot 40, and a spacing is formed between the two clamping blocks 44 for accommodating the block 19. During the bending process, part of the finished material can stay on the block 19 under the action of friction. With such a design, when the block 19 is lifted, a part of the finished material engaged on the block 19 can be removed through the clamping block 44 to facilitate unloading.

[0063] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A process for preparing a brake shoe roller retainer, characterized in that: It uses a brake shoe roller retainer stamping device, which includes: Workbench (1); A mounting frame (2) is fixedly mounted on the top of the workbench (1); a hydraulic cylinder (3) is mounted on the mounting frame (2); an output end of the hydraulic cylinder (3) passes through the mounting frame (2), and a mounting plate (4) is fixedly mounted thereon; A lower mold (5) is mounted on the workbench (1), a stamping groove (6) is provided on the top of the lower mold (5), a model block (7) is vertically slidably fitted in the stamping groove (6), a compression spring (8) is connected between the bottom of the model block (7) and the stamping groove (6), a fixing mechanism (9) for fixing the model block (7) is installed in the stamping groove (6), an upper mold (10) is installed at the bottom of the mounting plate (4), and a stamping block (11) is configured at the bottom of the upper mold (10) for inserting into the stamping groove (6); A fixed plate (12) is arranged on one side of the lower mold (5), and a receiving groove (13) is provided on the top of the fixed plate. A guide groove (14) is constructed in the punching groove (6). The bottom of the guide groove (14) is in the same plane as the receiving groove (13), and the two are connected to each other. A pushing mechanism (15) is installed on the other side of the lower mold (5). A slide groove (16) is constructed in the middle of the receiving groove (13). A slider (17) is provided in the slide groove (16) for vertical sliding cooperation. The bottom of the slider (17) is connected to the slide groove (16). A return spring (18) is provided, a stop block (19) is provided on the mounting plate (4), two hinge grooves (20) are provided at the bottom of the accommodating groove (13), the two hinge grooves (20) are axially symmetrically distributed on both sides of the slider (17), and the hinge grooves (20) are both located in the extension direction of the guide groove (14), and a clamping plate (21) is hinged in each of the hinge grooves (20), the hinge end of the clamping plate (21) is close to the slider (17), and the two clamping plates (21) are connected to the slider (17) through a transmission mechanism (22); a material discharge mechanism (23), which is installed on one side of the receiving tank (13) and is used to eject the finished product from the receiving tank (13); The following steps are required to produce a finished brake shoe roller retainer using the above brake shoe roller retainer stamping device: S1: feeding: pushing the pre-punched strip plate to the top of the lower mold (5) through the plate feeding device; S2: Stamping: The upper and lower molds are opened and closed to complete the blanking between the upper and lower molds, and the semi-finished product material and the mold block (7) are pressed into the stamping groove (6) by the stamping block (11); S3: Pushing: The model block (7) is fixed by the fixing mechanism (9), and after the output end of the hydraulic cylinder (3) is lifted, the semi-finished product material can be pushed from the guide groove (14) into the receiving groove (13) by the pushing device; S4: Folding: The output end of the hydraulic cylinder (3) drives the mounting plate (4) to press downward, and the stop block (19) presses the semi-finished material and the slider (17) into the chute (16). The clamping plate (21) moves relative to the hinge point under the drive of the transmission mechanism (22) to bend the semi-finished material. S5: Unloading: The finished product can be ejected from the receiving tank (13) through the unloading mechanism (23).

2. A process for preparing a brake shoe roller retainer according to claim 1, characterized in that: A guide column (24) is constructed in the sliding groove (16), the guide column (24) passes through the bottom of the sliding block (17), and the return spring (18) is sleeved on the outer side of the guide column (24).

3. A process for preparing a brake shoe roller retainer according to claim 1, characterized in that: The fixing mechanism (9) includes an electromagnet (25) fixedly installed in the punching groove (6), and a magnetic block (26) is fixedly installed at the bottom of the model block (7), and the magnetic block (26) is magnetically matched with the electromagnet (25).

4. A process for preparing a brake shoe roller retainer according to claim 3, characterized in that: The bottom of the model block (7) is provided with an insert block (27), the bottom of the stamping groove (6) is provided with a slot (28) for accommodating the insert block (27), a spur gear (29) is rotatably mounted on one side of the slot (28), and one side of the insert block (27) is provided with teeth (30), and the teeth (30) are meshed with the spur gear (29).

5. The process for preparing a brake shoe roller retainer according to claim 1, characterized in that: The pushing mechanism (15) includes a first electric push rod (31) installed on the workbench (1), the extension direction of the movable end of the first electric push rod (31) is consistent with the extension direction of the guide groove (14), a push block (32) is provided in a sliding fit in the guide groove (14), a connecting plate (33) is fixedly connected to the push block (32), and the connecting plate (33) passes through the guide groove (14) and is connected to the movable end of the first electric push rod (31).

6. A process for preparing a brake shoe roller retainer according to claim 5, characterized in that: The bottom of the push block (32) contacts the bottom of the guide groove (14), and the bottom of the connecting plate (33) is connected to the top of the push block (32).

7. The process for preparing a brake shoe roller retainer according to claim 1, characterized in that: The transmission mechanism (22) includes a receiving groove (34) constructed in the fixed plate (12), a fixed block (35) is constructed on one side of the slider (17), the fixed block (35) is slidably matched with the receiving groove (34), and racks (36) are connected to both sides of the fixed block (35). A first transmission gear (2201), a second transmission gear (2202) and a third transmission gear (2203) are rotatably installed in the receiving groove (34), the first transmission gear (2201), the second transmission gear (2202) and the third transmission gear (2203) are meshed in sequence from top to bottom, and the three are axially symmetrically distributed on both sides of the fixed block (35), and the two third transmission gears (2203) are meshed with the racks (36), and the two first transmission gears (2201) are respectively fixed to the hinge shafts of the two clamping plates (21).

8. The process for preparing a brake shoe roller retainer according to claim 1, characterized in that: The unloading mechanism (23) includes a discharge port (37) opened on one side of the receiving groove (13), the diameter of the discharge port (37) is smaller than the length of the receiving groove (13) and larger than the width of the slide groove (16), and a second electric push rod (38) is installed on the top of the workbench (1), the output end of the second electric push rod (38) passes through the other side of the receiving groove (13), and a push plate (39) is fixedly installed on the output end of the second electric push rod (38).

9. A process for preparing a brake shoe roller retainer according to claim 8, characterized in that: A clamping groove (40) is constructed on the inner wall of the accommodating groove (13), and the clamping groove (40) is used to accommodate the push plate (39).

10. A process for preparing a brake shoe roller retainer according to claim 9, characterized in that: L-shaped blocks (41) are provided on both sides of the discharge port (37), and the L-shaped blocks (41) include a vertical section (42) and a horizontal section (43) that are perpendicularly connected to each other. The ends of the vertical sections (42) are connected to the fixed plate (12), and the ends of the horizontal sections (43) extend relative to each other and are each constructed with blocks (44). The blocks (44) extend from the discharge port (37) toward the card slot (40), and a spacing for accommodating the stop block (19) is formed between the two blocks (44).

Images