A hydraulic forming machine for convenient mold replacement and use method thereof

Abstract

The invention discloses a hydraulic forming machine and a method for using the machine, which are convenient for replacing molds. The machine relates to the technical field of metal plate processing and comprises a mold changing mechanism and a bottom mold body installed on the top of the mold changing mechanism. A die pressing mechanism is arranged on the top of the mold changing mechanism, and a punching working head is arranged at the bottom center position of the die pressing mechanism. The mold changing mechanism comprises a die pressing workbench. Support legs are fixedly connected to the bottom of the die pressing workbench. Limiting slide grooves are symmetrically provided on both sides of the interior of the die pressing workbench. A limiting sliding rod is fixedly installed inside the limiting slide groove. A limiting sliding sleeve is slidably connected to the outer side of the limiting sliding rod. The two sides of the bottom mold body are pushed by the clamping limiting rod to perform preliminary limiting clamping on the bottom mold body. The fixing of the bottom mold body can be achieved by edge clamping and top pressing by utilizing the characteristics of the clamping clamping block and the clamping groove on the surface of the bottom mold body.

Description

Technical Field

[0001] The invention relates to the technical field of metal plate processing, in particular to a hydraulic forming machine for convenient mold replacement and a use method thereof. Background Art

[0002] A metal sheet forming machine is an auxiliary device for metal sheet forming, which has been widely used in the field of metal sheet processing. It is found in the use of existing metal sheet forming machines that during the stamping process, the metal sheet lacks sufficient and effective fixation, which easily causes the stamping position to deviate, resulting in poor stability in use.

[0003] Publication No. CN 211515713 U discloses a metal plate forming machine, which rotates a first handle to make the bottom end of a first fixing plate close to the left side of the top of a metal plate, then rotates a first fixing nut to make the bottom end of the first fixing nut close to the top of a fourth connecting plate, and rotates a second handle to make the bottom end of a second fixing plate close to the right side of the top of the metal plate, thereby fully fixing the metal plate, preventing the metal plate from deviating during the stamping process, and improving the stability of use. However, the above patent still has the following problems in actual use:

[0004] Although the metal plate forming machine fully fixes the metal plate and prevents the metal plate from deviating during the stamping process by turning the first handle to make the bottom end of the first fixed plate close to the left side of the top of the metal plate, then turns the first fixing nut to make the bottom end of the first fixing nut close to the top of the fourth connecting plate, and turns the second handle to make the bottom end of the second fixed plate close to the right side of the top of the metal plate, thereby improving the stability of use, fixing the stamping bottom die by turning the first handle is not only cumbersome to operate, but also inconvenient for rapid installation and disassembly of the stamping bottom die. When stamping bottom dies of different models are needed for stamping, a lot of time needs to be wasted to replace the stamping bottom die, thereby affecting the efficiency of metal plate stamping.

[0005] Therefore, a hydraulic forming machine and a method for using the machine are proposed to facilitate replacing the mold in order to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide a hydraulic forming machine and a method of use that are convenient for replacing molds, so as to solve the problem that the stamping bottom mold is fixed by turning the first handle proposed in the above-mentioned background technology, which is not only cumbersome to operate, but also inconvenient for rapid installation and disassembly of the stamping bottom mold. When stamping bottom molds of different models are needed for stamping, a lot of time needs to be wasted to replace the stamping bottom mold, thereby affecting the stamping efficiency of the metal plate.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydraulic molding machine and a method of using the machine for convenient mold replacement, comprising a mold replacement mechanism, and a bottom mold body installed on the top of the mold replacement mechanism;

[0008] A die pressing mechanism is arranged on the top of the die replacement mechanism, and a punching working head is arranged at the center position of the bottom of the die pressing mechanism;

[0009] Also includes:

[0010] The mold replacement mechanism comprises a die pressing workbench, the bottom of which is fixedly connected with supporting legs, and two sides of the interior of the die pressing workbench are symmetrically provided with limited sliding grooves;

[0011] Wherein, a limiting sliding rod is fixedly installed inside the limiting sliding groove, and the outer side of the limiting sliding rod is slidably connected to the limiting sliding sleeve;

[0012] Wherein, a first limiting sliding block is fixedly installed on the top of the limiting sliding sleeve, and a bottom rotating support is fixedly installed on the top of the first limiting sliding block;

[0013] A clamping plate is fixedly installed on the outer side of the first limit sliding block on one side, and second sliding grooves are symmetrically opened on both sides of the inner side of the clamping plate, and a clamping sliding rod is fixedly installed inside the second sliding groove, and a clamping spring is slidably connected to the outer side of the clamping sliding rod, and a clamping sliding sleeve is fixedly connected to the end of the clamping spring, and a first rotating support is fixedly installed on the top of the clamping sliding sleeve, and a clamping limit rod is fixedly installed on one side of the first rotating support;

[0014] By adopting the above technical solution, the bottom mold body is placed on the top of the die workbench, and the hydraulic cylinder can drive the die support plate to descend, while the die connecting rod drives the bottom rotating support, the first limit sliding block and the limit sliding sleeve to slide on the limit sliding rod. The die connecting rod can be manually pushed to move inward, thereby driving the clamping plate to move to both sides of the bottom mold body, and the clamping limit rod is used to push both sides of the bottom mold body to perform preliminary limit clamping on the bottom mold body, so that the bottom mold body is in the center of the die workbench;

[0015] The top of the first rotating support is rotatably connected with a clamping arm, the end of the clamping arm is fixedly installed with a clamping clamping block, the top of the clamping arm is fixedly installed with a second rotating support, the top of the second rotating support is rotatably connected with a clamping rotating rod, the top of the clamping rotating rod is rotatably connected with a third rotating support, one side of the third rotating support is fixedly installed with a clamping support plate, and the clamping support plate is fixedly installed on the top of the clamping plate;

[0016] By adopting the above technical solution, when the clamping limit rods on both sides are squeezed onto the bottom mold body, the elastic force of the clamping spring is utilized to make the clamping sliding sleeve drive the first rotating support to squeeze the clamping spring, and at the same time, the clamping rotating rod is rotated, thereby realizing the rotation of the clamping arm. By utilizing the characteristics of the clamping engagement block and the clamping groove on the surface of the bottom mold body, the bottom mold body can be fixed by side clamping and top pressing, thereby improving the stability during die pressing.

[0017] A bottom connecting plate is fixedly installed at the bottom of the limiting sliding sleeve on one side, a fixed connecting block is fixedly installed on one side of the bottom connecting plate, an ejector sleeve is fixedly installed at the bottom center of the die pressing workbench, ejector rotating gears are symmetrically installed on both sides of the ejector sleeve, and the two ejector rotating gears are meshed and connected with vertical meshing racks on the sides close to each other, and the tops of the two ejector rotating gears are meshed and connected with horizontal meshing racks;

[0018] By adopting the above technical solution, by pulling the die connecting rod outward, the limit sliding sleeve drives the clamping plate to move toward the outside of the bottom die body, and the bottom connecting plate and the fixed connecting block can be used to pull the ejection connecting rope and the transverse meshing rack to move relative to each other, and the vertical meshing rack can be moved up and down by utilizing the meshing connection characteristics between the ejection rotating gear, the vertical meshing rack and the transverse meshing rack;

[0019] The ends of the transverse meshing racks are fixedly connected with ejection connecting ropes, and the ejection connecting ropes are fixedly connected to the fixed connecting blocks. The tops of the two vertical meshing racks are fixedly installed with ejection bases, and the inner peripheries of the ejection bases are fixedly installed with ejection sliding rods, and the outer sides of the ejection sliding rods are slidably connected with ejection springs, and the ends of the ejection springs are fixedly installed with ejection sliding sleeves, and the top of the ejection sliding sleeves is rotatably connected with the ejection rotating rods;

[0020] By adopting the above technical solution, the ejection base is driven to move up and down by the vertical meshing rack, and the ejection ejector plate is moved up and down under the action of the ejection rotating rod by the elastic force of the ejection spring;

[0021] The top of the ejection rotating rod is rotatably connected to an ejection rotating support, the top of the ejection rotating support is fixedly installed with an ejection ejector plate, the inside of the ejection ejector plate is slidably connected with an ejector rod, the ejector rod is fixedly installed at the top center position of the ejection base, the ejection ejector plate is slidably connected to the die pressing workbench, and the bottom die body is placed on the top of the die pressing workbench;

[0022] By adopting the above technical solution, the metal plate of the bottom mold body can be ejected or loosened by the ejector rod, which is convenient for demoulding the metal plate. This process facilitates the rapid replacement of the bottom mold body, and different bottom mold bodies can be replaced according to needs;

[0023] The die pressing mechanism comprises a die pressing support column, the die pressing support column is fixedly installed around the top of the die pressing workbench, a supporting top plate is fixedly installed on the top of the die pressing support column, a hydraulic cylinder is fixedly installed at the center position of the bottom of the supporting top plate, the bottom of the hydraulic cylinder is fixedly connected to the die pressing support plate, a die pressing sliding rod is fixedly installed around the bottom of the supporting top plate, a die pressing sliding sleeve is slidably connected to the outer side of the die pressing sliding rod, and the die pressing sliding sleeve is fixedly connected to the die pressing support plate;

[0024] By adopting the above technical solution, the hydraulic cylinder is used to drive the die support plate to descend, and at the same time, the die connecting rod is used to drive the bottom rotating support, the first limit sliding block and the limit sliding sleeve to slide on the limit sliding rod, and the die pressing and demoulding can be achieved by changing the direction of the die connecting rod;

[0025] A connecting fixed disk is fixedly installed at the bottom center of the die support plate, a connecting clamping block is slidably connected inside the connecting fixed disk, a rotating toothed disk is rotatably connected at the bottom of the connecting clamping block, a spiral slide groove is provided around the inside of the rotating toothed disk, a spiral limiting slider is slidably connected inside the spiral slide groove, a connecting sliding rod is fixedly connected to the top of the spiral limiting slider, and the connecting sliding rod is slidably connected to the connecting clamping block;

[0026] By adopting the above technical solution, the rotating gear plate can utilize the spiral characteristics of the spiral groove to drive the spiral limit slider to slide inside the spiral groove, so that the spiral limit slider drives the connecting sliding rod to slide inside the connecting clamping block;

[0027] The connecting sliding rod is engaged with the connecting fixed disk, the bottom of the rotating gear disk is rotatably connected to the support rod, the stamping work head is fixedly installed on the bottom of the support rod, and top rotating supports are symmetrically installed on both sides of the die support plate. The bottom of the top rotating support is rotatably connected to the die connecting rod, and the die connecting rod is rotatably connected to the bottom rotating support.

[0028] By adopting the above technical solution and utilizing the characteristics of the locking connection between the connecting sliding rod and the connecting fixing disk, the fixing of the connecting locking block and the connecting fixing disk can be achieved, thereby facilitating the rapid installation and replacement of the stamping working head. Different types of stamping working heads can be replaced according to the bottom mold body, thereby improving the pressing effect of the hydraulic forming machine.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: the hydraulic forming machine and the method for using the hydraulic forming machine convenient for replacing the mold use the clamping limit rod to push the two sides of the bottom mold body to perform preliminary limit clamping on the bottom mold body, and use the characteristics of the clamping block and the clamping groove on the surface of the bottom mold body to fix the bottom mold body by side clamping and top pressing, and use the characteristics of the connecting sliding rod and the connecting fixing disk to fix the connecting clamping block and the connecting fixing disk, and the specific contents are as follows:

[0030] 1. By setting up the mold replacement mechanism, not only can the bottom mold body be placed on the top of the die workbench, but the hydraulic cylinder can drive the die support plate to descend, and at the same time, the die connecting rod can drive the bottom rotating support, the first limit slider and the limit sliding sleeve to slide on the limit sliding rod. The die connecting rod can be manually pushed to move inward, thereby driving the clamping plate to move to both sides of the bottom mold body, and the clamping limit rod is used to push both sides of the bottom mold body to perform preliminary limit clamping on the bottom mold body, so that the bottom mold body is in the center position of the die workbench. When the clamping limit rods on both sides are squeezed against the bottom mold body, the elastic force of the clamping spring is used to make the clamping sliding sleeve drive the first rotating support to squeeze the clamping spring, and at the same time, the clamping rotating rod is rotated, thereby realizing the rotation of the clamping arm, and utilizing the characteristics of the clamping clamping block being engaged with the clamping groove on the surface of the bottom mold body. The bottom die body can be fixed by side clamping and top pressing, thereby improving the stability during die pressing. After die pressing is completed, the die pressing connecting rod is pulled outward, so that the limit sliding sleeve drives the clamping plate to move toward the outside of the bottom die body. The bottom connecting plate and the fixed connecting block can be used to pull the ejection connecting rope and the transverse meshing rack to move relative to each other. The meshing connection between the ejection rotating gear, the vertical meshing rack and the transverse meshing rack can be used to realize the up and down movement of the vertical meshing rack. The vertical meshing rack is used to drive the ejection base to move up and down. The elastic force of the ejection spring is used to make the ejection ejector plate move up and down under the action of the ejection rotating rod. The metal plate of the bottom die body can be ejected or loosened by the ejection rod, which is convenient for demoulding of the metal plate. This process is convenient for rapid replacement of the bottom die body, and different bottom die bodies can be replaced according to needs.

[0031] 2. By setting up the die pressing mechanism, not only can the hydraulic cylinder be used to drive the die pressing support plate to descend, but also the die pressing connecting rod can be used to drive the bottom rotating support, the first limit sliding block and the limit sliding sleeve to slide on the limit sliding rod. By changing the direction of the die pressing connecting rod, die pressing and demoulding can be achieved. By rotating the rotating gear plate, the spiral characteristics of the spiral slide groove can be utilized to drive the spiral limit sliding block to slide inside the spiral slide groove, so that the spiral limit sliding block drives the connecting sliding rod to slide inside the connecting clamping block. By utilizing the characteristics of the connecting sliding rod and the connecting fixed disk being clamped together, the connecting clamping block and the connecting fixed disk can be fixed, thereby facilitating the rapid installation and replacement of the stamping working head. Stamping working heads of different types can be replaced according to the bottom mold body, thereby improving the pressing effect of the hydraulic forming machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the three-dimensional structure of the mold replacement mechanism in the present invention;

[0034] Figure 3 It is a schematic diagram of the three-dimensional structure of the ejector sleeve in the present invention;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping plate in the present invention;

[0036] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping arm in the present invention;

[0037] Figure 6 It is a schematic diagram of the three-dimensional structure of the vertical meshing rack and the horizontal meshing rack in the present invention;

[0038] Figure 7 It is a schematic diagram of the three-dimensional structure of the ejector rod in the present invention;

[0039] Figure 8 It is a schematic diagram of the three-dimensional structure of the die pressing mechanism in the present invention;

[0040] Fig. 9 It is a schematic diagram of the three-dimensional structure of the die support plate in the present invention;

[0041] Fig.10 It is a schematic diagram of the three-dimensional structure of the punching working head in the present invention;

[0042] Fig.11 It is a schematic diagram of the three-dimensional structure of the rotating gear disc in the present invention.

[0043] In the figure: 1. mold changing mechanism; 101. die pressing workbench; 102. support leg; 103. limit slide; 104. limit sliding rod; 105. limit sliding sleeve; 106. first limit sliding block; 107. bottom rotating support; 108. clamping plate; 109. second slide; 110. clamping sliding rod; 111. clamping spring; 112. clamping sliding sleeve; 113. first rotating support; 114. clamping limit rod; 115. clamping arm; 116. clamping clamping block; 117. second rotating support; 118. clamping rotating rod; 119. third rotating support; 120. clamping support plate; 121. bottom connecting plate; 122. fixed connecting block; 123. ejector sleeve; 124. ejector rotating gear; 125. vertical meshing rack; 126. 1. Laterally meshing rack; 127. Ejection connecting rope; 128. Ejection base; 129. Ejection sliding rod; 130. Ejection spring; 131. Ejection sliding sleeve; 132. Ejection rotating rod; 133. Ejection rotating support; 134. Ejection ejector plate; 135. Ejection rod; 136. Bottom die body; 2. Die pressing mechanism; 201. Die pressing support column; 202. Supporting top plate; 203. Hydraulic cylinder; 204. Die pressing support plate; 205. Die pressing sliding rod; 206. Die pressing sliding sleeve; 207. Connecting fixed disk; 208. Connecting engaging block; 209. Rotating toothed disk; 210. Spiral slide groove; 211. Spiral limiting slider; 212. Connecting sliding rod; 213. Support rod; 214. Stamping work head; 215. Top rotating support; 216. Die pressing connecting rod. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1-Figure 11The present invention provides a technical solution: a hydraulic molding machine and a method for using the hydraulic molding machine convenient for replacing molds, comprising a mold replacement mechanism 1, and a bottom mold body 136 installed on the top of the mold replacement mechanism 1, a die pressing mechanism 2 is arranged on the top of the mold replacement mechanism 1, and a punching work head 214 is arranged at the bottom center position of the die pressing mechanism 2, the mold replacement mechanism 1 comprises a die pressing workbench 101, the bottom of the die pressing workbench 101 is fixedly connected with support legs 102, and the inner sides of the die pressing workbench 101 are symmetrically provided with limited sliding grooves 103, wherein a limited sliding rod 104 is fixedly installed inside the limited sliding groove 103, and a limited sliding sleeve 105 is slidably connected to the outer side of the limited sliding rod 104, wherein a first limited sliding block 106 is fixedly installed on the top of the limited sliding block 106, a bottom rotating support 107 is fixedly installed on the top of the first limited sliding block 106, a clamping plate 108 is fixedly installed on the outer side of the first limited sliding block 106 on one side, and second sliding grooves 109 are symmetrically provided on the inner sides of the clamping plate 108. A clamping sliding rod 110 is fixedly installed inside the second slide groove 109, a clamping spring 111 is slidably connected to the outside of the clamping sliding rod 110, a clamping sliding sleeve 112 is fixedly connected to the end of the clamping spring 111, a first rotating support 113 is fixedly installed on the top of the clamping sliding sleeve 112, and a clamping limit rod 114 is fixedly installed on one side of the first rotating support 113. The bottom mold body 136 is placed on the top of the die workbench 101, and the die support plate 204 can be driven by the hydraulic cylinder 203. While descending, the bottom rotating support 107, the first limit sliding block 106 and the limit sliding sleeve 105 are driven to slide on the limit sliding rod 104 through the die connecting rod 216. The die connecting rod 216 can be pushed inward manually, thereby driving the clamping plate 108 to move to both sides of the bottom die body 136. The clamping limit rod 114 is used to push both sides of the bottom die body 136, and the bottom die body 136 is preliminarily limited and clamped, so that the bottom die body 136 is in the center position of the die workbench 101.

[0046] The top of the first rotating support 113 is rotatably connected to a clamping arm 115, and a clamping engaging block 116 is fixedly installed at the end of the clamping arm 115. The top of the clamping arm 115 is fixedly installed with a second rotating support 117, and the top of the second rotating support 117 is rotatably connected to a clamping rotating rod 118, and the top of the clamping rotating rod 118 is rotatably connected to a third rotating support 119. A clamping support plate 120 is fixedly installed on one side of the third rotating support 119, and the clamping support plate 120 is fixedly installed on the top of the clamping plate 108. When the clamping limit rods 114 on both sides are squeezed onto the bottom mold body 136, the elastic force of the clamping spring 111 is utilized to make the clamping sliding sleeve 112 drive the first rotating support 113 to squeeze the clamping spring 111, and at the same time make the clamping rotating rod 118 rotate, thereby realizing the rotation of the clamping arm 115, and utilizing the characteristics of the clamping clamping block 116 and the slot on the surface of the bottom mold body 136 to fix the bottom mold body 136 by side clamping and top pressing, thereby improving the stability during molding.

[0047] A bottom connecting plate 121 is fixedly installed at the bottom of one side of the limiting sliding sleeve 105, and a fixed connecting block 122 is fixedly installed on one side of the bottom connecting plate 121. An ejection sleeve 123 is fixedly installed at the bottom center of the die pressing workbench 101. Ejection rotating gears 124 are symmetrically installed on both sides of the inside of the ejection sleeve 123. The two ejection rotating gears 124 are meshed and connected with vertical meshing racks 125 on the sides close to each other. The tops of the two ejection rotating gears 124 are meshed and connected with transverse meshing racks 126. The ends of the transverse meshing racks 126 are fixedly connected with ejection connecting ropes 127, and the ejection connecting ropes 127 are fixed to the fixed connecting block 122. The top of the two vertical meshing racks 125 is fixedly installed with an ejection base 128. After the die pressing is completed, the die pressing connecting rod 216 is pulled outward, so that the limiting sliding sleeve 105 drives the clamping plate 108 to move toward the outside of the bottom mold body 136. The bottom connecting plate 121 and the fixed connecting block 122 can be used to pull the ejection connecting rope 127 and the horizontal meshing rack 126 to move relative to each other. By utilizing the meshing connection between the ejection rotating gear 124, the vertical meshing rack 125 and the horizontal meshing rack 126, the vertical meshing rack 125 can be moved up and down, and the vertical meshing rack 125 can be used to drive the ejection base 128 to move up and down.

[0048] The ejection base 128 is fixedly installed with an ejection sliding rod 129 on all sides, and the outer side of the ejection sliding rod 129 is slidably connected with an ejection spring 130, and the end of the ejection spring 130 is fixedly installed with an ejection sliding sleeve 131, and the top of the ejection sliding sleeve 131 is rotatably connected with an ejection rotating rod 132, and the top of the ejection rotating rod 132 is rotatably connected with an ejection rotating support 133, and the top of the ejection rotating support 133 is fixedly installed with an ejection ejector plate 134, and the inside of the ejection ejector plate 134 is slidably connected with an ejection rod 135, and the ejection rod 135 is fixedly connected with the ejection rotating rod 132. The ejector plate 134 is fixedly mounted at the top center of the ejector base 128, and is slidably connected to the die pressing workbench 101. The bottom die body 136 is placed on the top of the die pressing workbench 101. The ejector plate 134 is lowered by the elastic force of the ejector spring 130 under the action of the ejector rotating rod 132. The metal plate of the bottom die body 136 can be ejected or loosened by the ejector rod 135, so as to facilitate demoulding of the metal plate. This process facilitates the rapid replacement of the bottom die body 136, and different bottom die bodies 136 can be replaced according to needs.

[0049] The die mechanism 2 includes a die support column 201, which is fixedly installed around the top of the die workbench 101. A support top plate 202 is fixedly installed on the top of the die support column 201. A hydraulic cylinder 203 is fixedly installed at the bottom center of the support top plate 202. The bottom of the hydraulic cylinder 203 is fixedly connected to a die support plate 204. The hydraulic cylinder 203 is used to drive the die support plate 204 to descend. At the same time, the bottom rotating support 107, the first limit sliding block 106 and the limit sliding sleeve 105 are driven to slide on the limit sliding rod 104 through the die connecting rod 216. By changing the direction of the die connecting rod 216, die pressing and demoulding can be achieved.

[0050] A die sliding rod 205 is fixedly installed around the bottom of the supporting top plate 202, and a die sliding sleeve 206 is slidably connected to the outer side of the die sliding rod 205, and the die sliding sleeve 206 is fixedly connected to the die supporting plate 204. A connecting fixed disk 207 is fixedly installed at the bottom center of the die supporting plate 204, and a connecting clamping block 208 is slidably connected to the inside of the connecting fixed disk 207. The bottom of the connecting clamping block 208 is rotatably connected to a rotating toothed disk 209. A spiral sliding groove 210 is provided around the inside of the rotating toothed disk 209, and a spiral limiting slider 211 is slidably connected to the inside of the spiral sliding groove 210. A connecting sliding rod 212 is fixedly connected to the top of the spiral limiting slider 211. The connecting sliding rod 212 is slidably connected to the connecting clamping block 208, and the connecting sliding rod 212 is connected to the connecting fixed The disk 207 is engaged and connected, and the bottom of the rotating toothed disk 209 is rotatably connected to the support rod 213, and the stamping work head 214 is fixedly installed at the bottom of the support rod 213. By rotating the rotating toothed disk 209, the spiral characteristics of the spiral slide groove 210 can be utilized to drive the spiral limiting slider 211 to slide inside the spiral slide groove 210, so that the spiral limiting slider 211 drives the connecting sliding rod 212 to slide inside the connecting engaging block 208. By utilizing the characteristics of the engaging connection between the connecting sliding rod 212 and the connecting fixed disk 207, the connecting engaging block 208 and the connecting fixed disk 207 can be fixed, thereby facilitating the rapid installation and replacement of the stamping work head 214, and different types of stamping work heads 214 can be replaced according to the bottom mold body 136, thereby improving the pressing effect of the hydraulic forming machine.

[0051] Working principle: Before using this hydraulic forming machine that is convenient for changing molds and its method of use, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Fig.11As shown, first, the bottom mold body 136 is placed on the top of the die workbench 101, and the hydraulic cylinder 203 is used to drive the die support plate 204 to descend. At the same time, the bottom rotating support 107, the first limit slider 106 and the limit sliding sleeve 105 are driven to slide on the limit sliding rod 104 through the die connecting rod 216. The die connecting rod 216 can be manually pushed to move inward, thereby driving the clamping plate 108 to move to both sides of the bottom mold body 136. The clamping limit rod 114 is used to push both sides of the bottom mold body 136 to perform preliminary limit clamping on the bottom mold body 136. The bottom mold body 136 is placed at the center of the die pressing workbench 101. When the clamping limit rods 114 on both sides are squeezed onto the bottom mold body 136, the elastic force of the clamping spring 111 is utilized to make the clamping sliding sleeve 112 drive the first rotating support 113 to squeeze the clamping spring 111, and at the same time, the clamping rotating rod 118 is rotated, thereby realizing the rotation of the clamping arm 115. By utilizing the characteristics of the clamping engaging block 116 and the slot engaging connection with the surface of the bottom mold body 136, the bottom mold body 136 can be fixed by side clamping and top pressing, thereby improving the stability during die pressing.

[0052] Secondly, after the die pressing is completed, by pulling the die pressing connecting rod 216 outward, the limiting sliding sleeve 105 drives the clamping plate 108 to move toward the outside of the bottom die body 136, and the bottom connecting plate 121 and the fixed connecting block 122 can be used to pull the ejection connecting rope 127 and the transverse meshing rack 126 to move relative to each other. By utilizing the meshing connection between the ejection rotating gear 124, the vertical meshing rack 125 and the transverse meshing rack 126, the vertical meshing rack 125 can be moved up and down, and the vertical meshing rack 125 can be used to drive the ejection base 128 to move up and down. By utilizing the elastic force of the ejection spring 130, the ejection ejector plate 134 is lowered under the action of the ejection rotating rod 132, and the metal plate of the bottom die body 136 can be ejected or loosened by the ejection rod 135, which is convenient for demolding the metal plate. This process facilitates the rapid replacement of the bottom die body 136, and different bottom die bodies 136 can be replaced according to needs.

[0053] Finally, by rotating the gear plate 209, the spiral characteristics of the spiral groove 210 can be utilized to drive the spiral limiting slider 211 to slide inside the spiral groove 210, so that the spiral limiting slider 211 drives the connecting sliding rod 212 to slide inside the connecting clamping block 208. By utilizing the characteristics of the connecting sliding rod 212 and the connecting fixed disk 207 being engaged, the connecting clamping block 208 and the connecting fixed disk 207 can be fixed, thereby facilitating the rapid installation and replacement of the stamping work head 214, and different models of stamping work heads 214 can be replaced according to the bottom mold body 136, thereby improving the pressing effect of the hydraulic forming machine.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic molding machine for convenient mold replacement, comprising a mold replacement mechanism (1), and a bottom mold body (136) mounted on the top of the mold replacement mechanism (1); A die pressing mechanism (2) is arranged on the top of the die replacement mechanism (1), and a punching working head (214) is arranged at the center position of the bottom of the die pressing mechanism (2); It is characterized in that Also includes: The mold replacement mechanism (1) comprises a die pressing workbench (101), the bottom of the die pressing workbench (101) is fixedly connected with support legs (102) around the periphery, and two sides of the interior of the die pressing workbench (101) are symmetrically provided with limit sliding grooves (103); The limiting sliding groove (103) has a limiting sliding rod (104) fixedly installed inside, and the limiting sliding rod (104) is slidably connected to the limiting sliding sleeve (105) on the outside; Wherein, a first limiting sliding block (106) is fixedly mounted on the top of the limiting sliding sleeve (105), and a bottom rotating support (107) is fixedly mounted on the top of the first limiting sliding block (106); A clamping plate (108) is fixedly installed on the outer side of the first limiting sliding block (106) on one side, and second sliding grooves (109) are symmetrically opened on both sides of the inside of the clamping plate (108), and a clamping sliding rod (110) is fixedly installed inside the second sliding groove (109), and a clamping spring (111) is slidably connected to the outer side of the clamping sliding rod (110), and a clamping sliding sleeve (112) is fixedly connected to the end of the clamping spring (111), and a first rotating support (113) is fixedly installed on the top of the clamping sliding sleeve (112), and a clamping limiting rod (114) is fixedly installed on one side of the first rotating support (113); The top of the first rotating support (113) is rotatably connected to a clamping arm (115), the end of the clamping arm (115) is fixedly mounted with a clamping engaging block (116), the top of the clamping arm (115) is fixedly mounted with a second rotating support (117), the top of the second rotating support (117) is rotatably connected to a clamping rotating rod (118), the top of the clamping rotating rod (118) is rotatably connected to a third rotating support (119), a clamping support plate (120) is fixedly mounted on one side of the third rotating support (119), and the clamping support plate (120) is fixedly mounted on the top of the clamping plate (108); A bottom connecting plate (121) is fixedly installed at the bottom of the limiting sliding sleeve (105) on one side, a fixed connecting block (122) is fixedly installed at one side of the bottom connecting plate (121), an ejection sleeve (123) is fixedly installed at the center position of the bottom of the die pressing workbench (101), ejection rotating gears (124) are symmetrically installed on both sides of the ejection sleeve (123), the two ejection rotating gears (124) are meshedly connected to each other on one side thereof that is close to each other, and the tops of the two ejection rotating gears (124) are meshedly connected to a transverse meshing rack (126); The end of the transverse meshing rack (126) is fixedly connected to an ejection connection rope (127), and the ejection connection rope (127) is fixedly connected to the fixed connection block (122). The tops of the two vertical meshing racks (125) are fixedly installed with an ejection base (128), and the inner periphery of the ejection base (128) is fixedly installed with an ejection sliding rod (129), and the outer side of the ejection sliding rod (129) is slidably connected to an ejection spring (130), and the end of the ejection spring (130) is fixedly installed with an ejection sliding sleeve (131), and the top of the ejection sliding sleeve (131) is rotatably connected to an ejection rotating rod (132); The top of the ejection rotating rod (132) is rotatably connected to an ejection rotating support (133), the top of the ejection rotating support (133) is fixedly installed with an ejection top plate (134), the inside of the ejection top plate (134) is slidably connected to an ejection rod (135), the ejection rod (135) is fixedly installed at the top center position of the ejection base (128), the ejection top plate (134) is slidably connected to the die pressing workbench (101), and the bottom die body (136) is placed on the top of the die pressing workbench (101); The die pressing mechanism (2) comprises a die pressing support column (201), the die pressing support column (201) is fixedly mounted on the top and periphery of the die pressing workbench (101), a support top plate (202) is fixedly mounted on the top of the die pressing support column (201), a hydraulic cylinder (203) is fixedly mounted at the center position of the bottom of the support top plate (202), the bottom of the hydraulic cylinder (203) is fixedly connected to the die pressing support plate (204), a die pressing sliding rod (205) is fixedly mounted on the bottom and periphery of the support top plate (202), a die pressing sliding sleeve (206) is slidably connected to the outer side of the die pressing sliding rod (205), and the die pressing sliding sleeve (206) is fixedly connected to the die pressing support plate (204); A connecting fixed disk (207) is fixedly installed at the center position of the bottom of the die support plate (204); a connecting clamping block (208) is slidably connected to the inside of the connecting fixed disk (207); a rotating toothed disk (209) is rotatably connected to the bottom of the connecting clamping block (208); a spiral slide groove (210) is provided around the inside of the rotating toothed disk (209); a spiral limiting slider (211) is slidably connected to the inside of the spiral slide groove (210); a connecting sliding rod (212) is fixedly connected to the top of the spiral limiting slider (211); and the connecting sliding rod (212) is slidably connected to the connecting clamping block (208); The connecting sliding rod (212) is snap-connected with the connecting fixed disk (207); the bottom of the rotating toothed disk (209) is rotatably connected to a support rod (213); the punching work head (214) is fixedly mounted on the bottom of the support rod (213); top rotating supports (215) are symmetrically mounted on both sides of the die support plate (204); the bottom of the top rotating support (215) is rotatably connected to a die connecting rod (216); and the die connecting rod (216) is rotatably connected to the bottom rotating support (107).

2. A method for using a hydraulic molding machine that is convenient for replacing molds, using the hydraulic molding machine that is convenient for replacing molds as claimed in claim 1, the steps of the method are as follows: Step 1: Place the bottom mold body (136) on the top of the die workbench (101), use the hydraulic cylinder (203) to drive the die support plate (204) to descend, and at the same time drive the bottom rotating support (107), the first limit slide block (106) and the limit slide sleeve (105) to slide on the limit slide rod (104) through the die connecting rod (216). The die connecting rod (216) can be manually pushed to move inward, thereby driving the clamping plate (108) to move to both sides of the bottom mold body (136), and the clamping limit rod (114) is used to push both sides of the bottom mold body (136) to perform preliminary limit clamping on the bottom mold body (136). , so that the bottom mold body (136) is located at the center of the die pressing workbench (101), and when the clamping limit rods (114) on both sides are squeezed onto the bottom mold body (136), the elastic force of the clamping spring (111) is utilized to make the clamping sliding sleeve (112) drive the first rotating support (113) to squeeze the clamping spring (111), and at the same time, the clamping rotating rod (118) is rotated, thereby realizing the rotation of the clamping arm (115), and utilizing the characteristics of the clamping block (116) and the clamping groove on the surface of the bottom mold body (136) to realize the fixing of the bottom mold body (136) by side clamping and top pressing, thereby improving the stability during die pressing; Step 2: After the die pressing is completed, the die pressing connecting rod (216) is pulled outward, so that the limit sliding sleeve (105) drives the clamping plate (108) to move toward the outside of the bottom die body (136), and the bottom connecting plate (121) and the fixed connecting block (122) can be used to pull the ejection connecting rope (127) and the horizontal meshing rack (126) to move relative to each other. The meshing connection between the ejection rotating gear (124), the vertical meshing rack (125) and the horizontal meshing rack (126) can be used to achieve The vertical meshing rack (125) moves up and down, and the vertical meshing rack (125) is used to drive the ejection base (128) to move up and down. The elastic force of the ejection spring (130) is used to make the ejection top plate (134) descend under the action of the ejection rotating rod (132). The metal plate of the bottom mold body (136) can be ejected or loosened by the ejection rod (135), which is convenient for demoulding the metal plate. This process facilitates the rapid replacement of the bottom mold body (136), and different bottom mold bodies (136) can be replaced according to needs. Step 3: By rotating the gear disk (209), the spiral characteristics of the spiral groove (210) can be utilized to drive the spiral limit slider (211) to slide inside the spiral groove (210), so that the spiral limit slider (211) drives the connecting sliding rod (212) to slide inside the connecting clamping block (208). By utilizing the characteristics of the connecting sliding rod (212) and the connecting fixed disk (207) being engaged, the connecting clamping block (208) and the connecting fixed disk (207) can be fixed, thereby facilitating the rapid installation and replacement of the punching work head (214). Different types of punching work heads (214) can be replaced according to the bottom mold body (136), thereby improving the pressing effect of the hydraulic molding machine.

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