Positioning tool for metal mold machining

Abstract

The utility model relates to metal mould processing technical field, concretely relates to a positioning frock for metal mould processing, including fixed bottom plate, two installation riser, two plug -in boards, two clamping plates and two fixed institutions, fixed institution includes mounting bracket, limit pivot, threaded rod, connecting bearing, fixed plate and fixed bolt, when the plug -in block inserts into T -shaped groove, rotates hand wheel and drives limit pivot to rotate at the top of mounting bracket, because limit pivot does not occur displacement in the process of rotating, makes threaded rod displacement while rotating, thereby under the cooperation of connecting bearing and limit rod, drives fixed plate to move to the top of plug -in board, when fixed plate and the end face of T -shaped groove are pasted, will fixed bolt be fixed in corresponding fixed hole, completes the mechanical locking of hand wheel, avoids the plug -in block from falling off from inside T -shaped groove through fixed plate, makes the structure of plug -in block installation in T -shaped groove more firm.

Description

Technical Field

[0001] This utility model relates to the field of metal mold processing technology, and in particular to a positioning fixture for metal mold processing. Background Technology

[0002] When machining metal molds, clamping fixtures are often used to position and fix the original mold block, which is then processed into shape by an external CNC machining table.

[0003] Patent document CN220372741U discloses a positioning device for metal mold processing, including a fixed base plate. A plurality of positioning holes are formed on one side of the fixed base plate, and a positioning pin is inserted into each of the positioning holes. A rotating groove is formed on the upper surface of the fixed base plate, and a plurality of support rollers are rotatably connected inside the rotating groove. Two mounting plates are fixedly connected to the upper surface of the fixed base plate, and a hydraulic cylinder is fixedly connected to one side of each of the two mounting plates. The two hydraulic cylinders are symmetrically arranged on the upper surface of the fixed base plate, and a plug-in plate is fixedly connected to the output end of each of the two hydraulic cylinders. The advantage of this technical solution is that by having the two symmetrically arranged hydraulic cylinders simultaneously drive the first clamping plate and the second clamping plate to move towards each other, the mold placed above the fixed base plate is clamped and positioned to prevent it from shifting during processing.

[0004] However, the existing positioning fixtures for metal mold processing do not have a fixing mechanism, which makes the structure of the plug block installed inside the T-slot not very sturdy. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning fixture for metal mold processing, which solves the problem that the existing positioning fixtures for metal mold processing do not have a fixing mechanism, resulting in the structural instability of the plug-in block installed inside the T-slot.

[0006] To achieve the above objectives, this utility model provides a positioning fixture for metal mold processing, including a fixed base plate, two mounting plates, two plug-in plates, two clamping plates, and two fixing mechanisms. The upper surface of the fixed base plate is provided with a placement area, and the mounting plates are fixedly provided at both ends of the placement area. Each mounting plate facing the placement area is equipped with a plug-in plate by a hydraulic cylinder, and each plug-in plate is equipped with a clamping plate.

[0007] Each of the plug-in plates is provided with a fixing mechanism, and each fixing mechanism includes a mounting bracket, a limiting pivot, a threaded rod, a connecting bearing, a fixing plate, and a fixing pin. Each plug-in plate has a T-slot on the side facing the placement area. Each clamping plate has a plug-in block on its back, which is adapted to the T-slot. The surface of the plug-in block is provided with multiple ball bearings, which are in contact with the inner wall of the T-slot. The mounting bracket is mounted on the top of the plug-in plate, and a limiting position is rotatably set at the center of the top of the mounting bracket. The rotating shaft has a threaded rod internally connected to it. The end of the threaded rod near the plug-in plate is mounted to the fixing plate via the connecting bearing. A limiting rod is provided on the side of the fixing plate away from the plug-in plate. The side of the limiting rod away from the fixing plate passes through the top of the mounting frame. The top of the mounting frame is also provided with a mounting protrusion. A fixing pin is provided at the mounting protrusion. A handwheel is provided on the outer wall of the rotating shaft. Multiple fixing holes are provided on the outer wall of the handwheel. The fixing pin is adapted to the fixing holes.

[0008] The overall height of each mounting bracket is higher than the height of the corresponding plug-in block. Each mounting bracket includes a mounting top plate and two fixed feet. The limiting pivot is provided at the center of the mounting top plate. The fixed feet are fixedly provided on both sides of the mounting top plate. The end of each fixed foot away from the mounting top plate is connected to the top of the plug-in block.

[0009] Each of the limiting pivots is further provided with two limiting rings on its exterior, with the two limiting rings located on the upper and lower surfaces of the mounting top plate, respectively.

[0010] Each of the fixed pins includes a fixed rod, a mounting ring, and a connecting spring. Each mounting protrusion has a through hole, and the fixed rod is slidably disposed on the through hole. The mounting ring is fixedly disposed at the end of the fixed rod away from the handwheel. The connecting spring is disposed between the mounting ring and the outer wall of the mounting protrusion, and the connecting spring is disposed outside the fixed rod.

[0011] Each mounting ring has a pull ring on the side away from the corresponding fixing rod.

[0012] This utility model discloses a positioning fixture for metal mold processing, comprising a fixed base plate, two mounting plates, two insertion plates, two clamping plates, and two fixing mechanisms. When the insertion block is inserted into the T-slot, rotating the handwheel drives the limiting shaft to rotate at the top of the mounting frame. Since the limiting shaft does not shift during rotation, the threaded rod shifts while rotating inside the limiting shaft. This, in conjunction with the connecting bearing and the limiting rod, moves the fixing plate towards the top of the insertion plate. When the fixing plate aligns with the end face of the T-slot, the fixing pin is fixed in the corresponding fixing hole, completing the mechanical locking of the handwheel. The fixing plate prevents the insertion block from falling out of the T-slot, making the structure of the insertion block installed inside the T-slot more robust. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the positioning fixture for metal mold processing provided by this utility model.

[0015] Figure 2 This utility model provides Figure 1 Enlarged view of the local structure at point A.

[0016] Figure 3 This utility model provides Figure 1 Enlarged view of the local structure at point B.

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the clamping plate and the plug-in plate provided by this utility model.

[0018] 101-Fixed base plate, 102-Mounting upright plate, 103-Plug-in plate, 104-Clamping plate, 105-Limiting pivot, 106-Threaded rod, 107-Connecting bearing, 108-Fixed plate, 109-Mounting top plate, 110-Fixed foot, 111-Fixed rod, 112-Mounting ring, 113-Connecting spring, 114-Placement area, 115-Hydraulic cylinder, 116-T-slot, 117-Plug-in block, 118-Ball bearing, 119-Limiting rod, 120-Mounting protrusion, 121-Handwheel, 122-Fixed hole, 123-Limiting ring, 124-Through hole, 125-Pull ring. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1 to 4 ,in Figure 1 This is a structural diagram of a positioning fixture used in metal mold processing. Figure 2 yes Figure 1 Enlarged view of the local structure at point A. Figure 3 yes Figure 1 Enlarged view of the local structure at point B. Figure 4 This is a schematic diagram showing the disassembled structure of the clamping plate and the plug-in plate.

[0021] This utility model provides a positioning fixture for metal mold processing, comprising a fixed base plate 101, two mounting upright plates 102, two plug-in plates 103, two clamping plates 104, and two fixing mechanisms. Each plug-in plate 103 is provided with a fixing mechanism, and each fixing mechanism includes a mounting bracket, a limiting pivot 105, a threaded rod 106, a connecting bearing 107, a fixing plate 108, and a fixing pin. Each mounting bracket includes a mounting top plate 109 and two fixing feet 110. Each fixing pin includes a fixing rod 111, a mounting ring 112, and a connecting spring 113. This solution solves the problem that existing positioning fixtures for metal mold processing lack fixing mechanisms, resulting in insufficient structural stability when the plug-in block is installed inside the T-slot. It is understood that the aforementioned solution can be used in the structure of positioning fixtures for metal mold processing.

[0022] In this specific embodiment, a placement area 114 is provided on the upper surface of the fixed base plate 101. Mounting plates 102 are fixedly provided at both ends of the placement area 114. Each mounting plate 102 facing the placement area 114 has a connecting plate 103 mounted on it via a hydraulic cylinder 115. Each connecting plate 103 has a clamping plate 104 mounted on it. According to the specifications of the metal mold to be processed, clamping plates 104 of corresponding specifications are mounted on the connecting plates 103. After the metal mold to be processed is placed in the placement area 114, the two hydraulic cylinders 115 are simultaneously activated, causing the two connecting plates 103 to move towards each other. Thus, the two clamping plates 104 cooperate to complete the positioning and fixing of the metal mold to be processed.

[0023] Each of the plug-in plates 103 has a T-slot 116 on the side facing the placement area 114, and each of the clamping plates 104 has a plug-in block 117 on its back. The plug-in block 117 is adapted to the T-slot 116, and the surface of the plug-in block 117 is provided with a plurality of balls 118. The balls 118 are in contact with the inner sidewall of the T-slot 116. The mounting bracket is installed on the top of the plug-in plate 103, and a limiting shaft 105 is rotatably installed at the center of the top of the mounting bracket. The limiting shaft 105 is internally threaded with a threaded rod 106. 06. A fixing plate 108 is mounted on one end near the plug-in plate 103 via the connecting bearing 107. A limit rod 119 is provided on the side of the fixing plate 108 away from the plug-in plate 103. The side of the limit rod 119 away from the fixing plate 108 passes through the top of the mounting bracket. The top of the mounting bracket is also provided with a mounting protrusion 120. A fixing pin is provided at the mounting protrusion 120. A handwheel 121 is provided on the outer wall of the limiting shaft 105. A plurality of fixing holes 122 are provided on the outer wall of the handwheel 121. The fixing pin is adapted to the fixing holes 122. When When it is necessary to replace the corresponding clamping plate 104 according to the specifications of the metal mold to be processed, the plug-in block 117 is inserted into the T-slot 116. Because the surface of the plug-in block 117 is provided with multiple ball bearings 118, the operation is more convenient for the operator when inserting the plug-in block 117 into the T-slot 116. After the plug-in block 117 is inserted into the T-slot 116, rotating the handwheel 121 drives the limiting shaft 105 to rotate at the top of the mounting bracket. Since the limiting shaft 105 does not shift during rotation, the threaded rod 106... While rotating inside the limiting shaft 105, displacement occurs, thereby driving the fixing plate 108 to move towards the top of the plug-in plate 103 under the cooperation of the connecting bearing 107 and the limiting rod 119. When the fixing plate 108 is in contact with the end face of the T-slot 116, the fixing pin is fixed in the corresponding fixing hole 122, completing the mechanical locking of the handwheel 121. The fixing plate 108 prevents the plug-in block 117 from falling out of the T-slot 116, making the structure of the plug-in block 117 installed inside the T-slot 116 more secure.

[0024] Secondly, since the overall height of each mounting bracket is higher than the height of the corresponding plug-in block 117, interference with the disassembly and assembly of the plug-in block 117 is avoided. The limiting pivot 105 is provided at the center of the mounting top plate 109, and the fixing feet 110 are fixedly provided on both sides of the mounting top plate 109. The end of each fixing foot 110 away from the mounting top plate 109 is connected to the top of the plug-in plate 103.

[0025] Meanwhile, each of the limiting shafts 105 is also provided with two limiting rings 123 on its exterior. The two limiting rings 123 are located on the upper and lower surfaces of the mounting top plate 109, respectively. By setting the two limiting rings 123, the structure of the limiting shaft 105 is more stable when it rotates on the mounting top plate 109.

[0026] In addition, each of the mounting protrusions 120 is provided with a through hole 124, and a fixing rod 111 is slidably disposed on the through hole 124. The end of the fixing rod 111 away from the handwheel 121 is fixedly provided with a mounting ring 112. A connecting spring 113 is disposed between the mounting ring 112 and the outer wall of the mounting protrusion 120. The connecting spring 113 is disposed outside the fixing rod 111. Pulling the mounting ring 112 causes the fixing rod 111 to slide on the through hole 124, so that the end of the fixing rod 111 disengages from the fixing hole 122, making it easier to rotate the handwheel 121. When the handwheel 121 is rotated to the corresponding position, the mounting ring 112 is released. Under the action of the restoring force of the connecting spring 113, the end of the fixing rod 111 is inserted into the corresponding fixing hole 122, completing the mechanical locking of the handwheel 121.

[0027] Furthermore, each mounting ring 112 is provided with a pull ring 125 on the side away from the corresponding fixing rod 111. The pull ring 125 makes it easier to pull the mounting ring 112.

[0028] When using the positioning fixture for metal mold processing of this utility model, pulling the mounting ring 112 causes the fixing rod 111 to slide on the through hole 124, so that the end of the fixing rod 111 disengages from the fixing hole 122, making it easier to rotate the handwheel 121. When the handwheel 121 rotates to the corresponding position, the mounting ring 112 is released. Under the restoring force of the connecting spring 113, the end of the fixing rod 111 is inserted into the corresponding fixing hole 122, completing the mechanical locking of the handwheel 121. Furthermore, the pull ring 125 makes it more convenient to operate when pulling the mounting ring 112.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A positioning fixture for metal mold processing, comprising a fixed base plate, two mounting plates, two insertion plates, and two clamping plates, wherein the upper surface of the fixed base plate is provided with a placement area, the mounting plates are fixedly disposed at both ends of the placement area, the insertion plates are mounted on the side of each mounting plate facing the placement area via hydraulic cylinders, and the clamping plates are mounted on each insertion plate, characterized in that, It also includes two fixing mechanisms, and each of the plug-in boards is provided with the fixing mechanism; Each of the fixing mechanisms includes a mounting bracket, a limiting pivot, a threaded rod, a connecting bearing, a fixing plate, and a fixing pin. Each insertion plate has a T-slot on the side facing the placement area. Each clamping plate has an insertion block on its back, the insertion block fitting into the T-slot. The surface of the insertion block is provided with multiple ball bearings, which abut against the inner wall of the T-slot. The mounting bracket is mounted on the top of the insertion plate, and the limiting pivot is rotatably mounted at the center of the top of the mounting bracket. The threaded rod is internally threaded, and the fixed plate is mounted on the end of the threaded rod near the plug plate via the connecting bearing. A limit rod is provided on the side of the fixed plate away from the plug plate. The side of the limit rod away from the fixed plate passes through the top of the mounting bracket. The top of the mounting bracket is also provided with a mounting protrusion, and a fixing pin is provided at the mounting protrusion. A handwheel is provided on the outer wall of the limiting shaft, and multiple fixing holes are provided on the outer wall of the handwheel. The fixing pin is adapted to the fixing holes.

2. The positioning fixture for metal mold processing as described in claim 1, characterized in that, The overall height of each mounting bracket is higher than the height of the corresponding plug-in block. Each mounting bracket includes a mounting top plate and two fixed feet. The limiting pivot is provided at the center of the mounting top plate. The fixed feet are fixedly provided on both sides of the mounting top plate. The end of each fixed foot away from the mounting top plate is connected to the top of the plug-in block.

3. The positioning fixture for metal mold processing as described in claim 2, characterized in that, Each of the limiting pivots is also provided with two limiting rings on its exterior, with the two limiting rings located on the upper and lower surfaces of the mounting top plate, respectively.

4. The positioning fixture for metal mold processing as described in claim 3, characterized in that, Each of the fixed pins includes a fixed rod, a mounting ring, and a connecting spring. Each mounting protrusion has a through hole, and the fixed rod is slidably disposed on the through hole. The mounting ring is fixedly disposed at the end of the fixed rod away from the handwheel. The connecting spring is disposed between the mounting ring and the outer wall of the mounting protrusion, and the connecting spring is disposed outside the fixed rod.

5. The positioning fixture for metal mold processing as described in claim 4, characterized in that, Each mounting ring has a pull ring on the side away from the corresponding fixing rod.

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