Mold base positioning mechanism for mold base machining

Abstract

The utility model discloses a mold base positioning mechanism for mold base machining, and relates to the technical field of mold base machining. The positioning device comprises two auxiliary positioning blocks, two pushing blocks are connected to the inner walls of the auxiliary positioning blocks in a sliding mode, T-shaped grooves are formed in the sides, close to each other, of the pushing blocks, and T-shaped blocks are connected to the inner walls of the auxiliary positioning blocks in a sliding mode. According to the utility model, the auxiliary positioning block is arranged, specifically, if a film blank is in an inclined state, as the two pushing blocks are pushed out in parallel, when the inner wall of the film blank is in contact with the positioning block or the clamping block, the film blank is pushed by the pushing blocks to move, so that the position of the film blank is adjusted; and the two pushing blocks are made to draw close to the center of the bottom till the contact faces of the two pushing blocks make contact with the inner wall of the film blank, adjustment of the film blank is completed, fixing is conducted by screwing the locking nut after adjustment is completed, positioning is more accurate, and positioning deviation is reduced.

Description

Technical Field

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

[0002] The mold blank, also known as the mold frame, is the support for the mold, enabling it to be installed on the die-casting machine. It consists of an ejection mechanism, a guiding mechanism, a pre-reset mechanism, mold foot pads, and a base plate. Currently, mold blanks are typically positioned visually, leading to positional deviations that often require multiple adjustments and corrections. This increases the workload for operators, prolongs production preparation time, and reduces overall work efficiency. Therefore, we provide a mold blank positioning mechanism for mold blank processing. Utility Model Content

[0003] The purpose of this invention is to provide a mold blank positioning mechanism for mold blank processing. By gradually pushing the push block, the contact surface between the inner wall of the mold blank and the push block gradually increases. At the same time, the inclination of the mold blank is finely adjusted until the contact surfaces of the two push blocks are in parallel contact with the inner wall of the mold blank, thus completing the fine adjustment of the mold blank. This solves the problem that in the current method of positioning the mold blank, the positioning is usually done by visual judgment, which results in a certain deviation in the position of the mold blank and often requires multiple adjustments and corrections, which not only increases the workload of the operator.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a mold blank positioning mechanism for mold blank processing, including auxiliary positioning blocks. There are two auxiliary positioning blocks. Two pushing blocks are slidably connected to the inner wall of the auxiliary positioning blocks. A T-shaped groove is opened on the side of the pushing blocks that are close to each other. A T-shaped block is slidably connected to the inner wall of the auxiliary positioning blocks. The front and back of the T-shaped block are slidably connected to the T-shaped groove opened inside the pushing block. The ends of the pushing blocks that are far apart from each other abut against the mold blank.

[0006] Positioning plates are fixedly connected to the left and right sides of the auxiliary positioning block. The bottom of the membrane preform contacts the base plate, and a positioning bolt is fixedly connected to the top of the base plate. The positioning bolt is located inside the positioning plate, and a locking nut is threaded onto the outer surface of the positioning bolt. As the pushing block is gradually pushed, the contact area between the inner wall of the membrane preform and the pushing block gradually increases. At the same time, the inclination of the membrane preform is finely adjusted until the contact surfaces of both pushing blocks are in parallel contact with the inner wall of the membrane preform, thus completing the fine adjustment of the membrane preform. After the adjustment is completed, the locking nut is tightened to fix it, making its positioning more accurate and reducing positioning deviation.

[0007] Furthermore, the base plate has an installation groove inside, the bottom of the auxiliary positioning block is inserted into the inner wall of the installation groove, the base plate has a locking groove inside, and the auxiliary positioning block has a pressing groove inside. There are two pressing grooves in total, and the inner wall of each pressing groove is slidably connected with a snap-fit ​​block. The outer surface of the snap-fit ​​block is snapped into the inner wall of the locking groove. The auxiliary positioning block is snapped into the installation groove by the cooperation of the locking groove and the snap-fit ​​block.

[0008] Furthermore, a limiting rod is slidably connected to the inner wall of the snap-fit ​​block. The front and back of the limiting rod are fixedly connected to the inner wall of the extrusion groove. A spring is fixedly connected to the back of the snap-fit ​​block. The back of the spring is fixedly connected to the inner wall of the extrusion groove. A through hole is provided inside the auxiliary positioning block. Through the through hole, the threaded rod can enter the interior of the auxiliary positioning block and push the T-shaped block to move.

[0009] Furthermore, a motor is fixedly connected to the right side of the base plate, and a connecting rod is fixedly connected to the left output end of the motor via a coupling. An adjustment groove is provided inside the base plate, and the left side of the connecting rod extends into the adjustment groove. A worm gear is fixedly connected to the left side of the connecting rod, and a fixed rod is rotatably connected to the left side of the worm gear. The left side of the fixed rod is fixedly connected to the inner wall of the adjustment groove, and the fixed rod supports the worm gear.

[0010] Furthermore, a worm gear is meshed with the back of the worm, a splined shaft is fixedly connected to the inner wall of the worm gear, a threaded rod is slidably connected to the outer surface of the splined shaft, a threaded hole is opened inside the base plate, the threaded hole communicates with the mounting groove, the outer surface of the threaded rod is threadedly connected to the inner wall of the threaded hole, the top of the threaded rod passes through the through hole and extends into the auxiliary positioning block, the top of the threaded rod contacts the bottom of the T-shaped block, the threaded rod can slide on the surface of the splined shaft but cannot rotate, so when the splined shaft rotates, it will drive the threaded rod to rotate, and then through the engagement of the threaded rod and the threaded hole, the threaded rod moves upward while rotating.

[0011] This utility model has the following beneficial effects:

[0012] 1. This utility model uses an auxiliary positioning block. Specifically, when the membrane preform is tilted, the two pushing blocks are pushed out in parallel. When the inner wall of the membrane preform is in contact with the positioning block or snap-fit ​​block, the pushing blocks move the membrane preform, adjusting its position so that it moves closer to the bottom center until the contact surfaces of the two pushing blocks are in contact with the inner wall of the membrane preform. After adjustment, the locking nut is tightened to fix it, making the positioning more accurate and reducing positioning deviation.

[0013] 2. This utility model uses snap-fit ​​blocks, specifically, to press the snap-fit ​​blocks on both sides of the auxiliary positioning block, causing the snap-fit ​​blocks to move along the limiting rod into the pressing groove and press the spring. When the snap-fit ​​blocks move into the pressing groove, they will disengage from the locking groove. Then, the auxiliary positioning block can be pulled upward to remove it for maintenance, thereby improving the life of the auxiliary positioning block and allowing it to be replaced when damaged.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the auxiliary positioning block of this utility model;

[0018] Figure 3 This is a schematic diagram of the top cross-sectional structure of the positioning plate of this utility model;

[0019] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0020] Figure 5 This is a cross-sectional view of the right side of the auxiliary positioning block of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 101. Preform; 102. Positioning plate; 103. Locking nut; 104. Positioning bolt; 105. Auxiliary positioning block; 106. Pushing block; 107. T-block; 108. Spring; 109. Snap-fit ​​block; 110. Extrusion groove; 111. Locking groove; 112. Limiting rod; 113. Through hole; 114. Mounting groove; 201. Base plate; 202. Motor; 203. Adjustment groove; 204. Connecting rod; 205. Worm gear; 206. Worm wheel; 207. Splined shaft; 208. Fixing rod; 209. Threaded rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 As shown, this utility model is a mold blank positioning mechanism for mold blank processing, including auxiliary positioning blocks 105. There are two auxiliary positioning blocks 105. Two pushing blocks 106 are slidably connected to the inner wall of the auxiliary positioning blocks 105. A T-shaped groove is opened on the side of the pushing blocks 106 that is close to each other. A T-shaped block 107 is slidably connected to the inner wall of the auxiliary positioning blocks 105. The front and back sides of the T-shaped block 107 are slidably connected to the T-shaped groove opened inside the pushing block 106. The ends of the pushing blocks 106 that are far apart from each other abut against the mold blank 101.

[0025] Positioning plates 102 are fixedly connected to the left and right sides of the auxiliary positioning block 105. The bottom of the film preform 101 contacts the base plate 201, and a positioning bolt 104 is fixedly connected to the top of the base plate 201. The positioning bolt 104 is located inside the positioning plate 102, and a locking nut 103 is threaded onto the outer surface of the positioning bolt 104. If the film preform 101 is in an inclined state, when the two pushing blocks 106 are pushed out, since the two pushing blocks 106 are pushed out in parallel, when the inner wall of the film preform 101 is in contact with the positioning block 105 or the snap-fit ​​block 109, the pushing of the pushing blocks 106 causes the film preform 101 to move, thereby adjusting the position of the film preform 101 until the contact surfaces of the two pushing blocks 106 are in contact with the inner wall of the film preform 101, thus completing the adjustment of the film preform 101. After the adjustment is completed, the locking nut 103 is tightened to fix it, making its positioning more accurate and reducing positioning deviation.

[0026] The base plate 201 has an installation groove 114 inside, the bottom of the auxiliary positioning block 105 is inserted into the inner wall of the installation groove 114, and the base plate 201 has a locking groove 111 inside.

[0027] The auxiliary positioning block 105 has a pressing groove 110 inside. There are two pressing grooves 110. The inner wall of each pressing groove 110 is slidably connected to a snap-fit ​​block 109. The outer surface of the snap-fit ​​block 109 snaps into the inner wall of the locking groove 111.

[0028] The inner wall of the snap-fit ​​block 109 is slidably connected to the limiting rod 112. The front and back of the limiting rod 112 are fixedly connected to the inner wall of the extrusion groove 110. A spring 108 is fixedly connected to the back of the snap-fit ​​block 109. The back of the spring 108 is fixedly connected to the inner wall of the extrusion groove 110. A through hole 113 is opened inside the preform 101.

[0029] A motor 202 is fixedly connected to the right side of the base plate 201, and a connecting rod 204 is fixedly connected to the left output end of the motor 202 via a coupling. An adjustment groove 203 is provided inside the base plate 201.

[0030] The left side of the connecting rod 204 extends into the adjustment groove 203. The left side of the connecting rod 204 is fixedly connected to the worm gear 205. The left side of the worm gear 205 is rotatably connected to the fixing rod 208. The left side of the fixing rod 208 is fixedly connected to the inner wall of the adjustment groove 203.

[0031] The worm gear 205 is meshed with a worm wheel 206 on its back. A splined shaft 207 is fixedly connected to the inner wall of the worm wheel 206. A threaded rod 209 is slidably connected to the outer surface of the splined shaft 207. A threaded hole is opened inside the auxiliary positioning block 105.

[0032] The threaded hole is connected to the mounting groove 114. The outer surface of the threaded rod 209 is threaded to the inner wall of the threaded hole. The top of the threaded rod 209 passes through the through hole 113 and extends into the auxiliary positioning block 105. The top of the threaded rod 209 contacts the bottom of the T-shaped block 107, which presses the locking blocks 109 on both sides of the auxiliary positioning block 105. This causes the locking blocks 109 to move along the limit rod 112 into the pressing groove 110 and press the spring 108. When the locking blocks 109 move into the pressing groove 110, they will disengage from the locking groove 111. Then, the auxiliary positioning block 105 can be pulled upward to remove it for maintenance, thereby improving the life of the auxiliary positioning block 105 and allowing it to be replaced when damaged.

[0033] A specific application of this embodiment is as follows: In use, the preform 101 is first placed on the base plate 201, and the positioning bolt 104 is inserted into the positioning plate 102 for auxiliary positioning. The auxiliary positioning block 105 is then inserted into the bottom of the preform 101. The motor 202 is then started, driving the connecting rod 204 to rotate. The rotation of the connecting rod 204 then drives the worm gear 205 to rotate. Simultaneously, the rotation of the worm gear 205 drives the worm wheel 206 to rotate. The rotation of the worm wheel 206 synchronously drives the spline shaft 207 to rotate. The rotation of the spline shaft 207 then drives the threaded rod 209 to rotate. As the threaded rod 209 rotates, it gradually moves upwards. Since the threaded rod 209 is threadedly connected to the threaded hole inside the base plate, the thread... When rod 209 rotates, it moves upward. At the same time, threaded rod 209 slides along the groove on the surface of spline shaft 207. Then, by moving upward, threaded rod 209 pushes T-block 107 to slide along the T-groove on the inner side of push block 106, and pushes the two push blocks 106 outward. When the two push blocks 106 are pushed out, since the two push blocks 106 are pushed out in parallel, when the inner wall of the film blank 101 is in contact with positioning block 105 or snap-fit ​​block 109, the push of push blocks 106 moves the film blank 101, thereby adjusting the position of the film blank 101 and bringing it closer to the center of bottom 201 until the contact surfaces of the two push blocks 106 are in contact with the inner wall of the film blank 101, thus completing the adjustment of the film blank 101. After the adjustment is completed, the locking nut 103 is tightened to fix it, making its positioning more accurate and reducing positioning deviation.

[0034] When the auxiliary positioning block 105 needs to be removed, the locking blocks 109 on both sides of the auxiliary positioning block 105 are pressed, causing the locking blocks 109 to move along the limiting rod 112 into the pressing groove 110 and press the spring 108. When the locking blocks 109 move into the pressing groove 110, they will disengage from the locking groove 111. Then, the auxiliary positioning block 105 is pulled upward to remove it for maintenance, thereby improving the service life of the auxiliary positioning block 105.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mold core positioning mechanism for mold core machining, comprising an auxiliary positioning block (105), two of which are provided, characterized in that: Two push blocks (106) are slidably connected to the inner wall of the auxiliary positioning block (105), and T-shaped grooves are formed in the side of the push blocks (106) close to each other; a T-shaped block (107) is slidably connected to the inner wall of the auxiliary positioning block (105), and the front and back surfaces of the T-shaped block (107) are slidably connected to the T-shaped grooves formed in the push blocks (106); and the ends of the push blocks (106) away from each other abut against the membrane embryo (101); The left and right sides of the auxiliary positioning block (105) are fixedly connected with positioning plates (102), the bottom of the membrane embryo (101) abuts against a bottom plate (201), the top of the bottom plate (201) is fixedly connected with a positioning bolt (104), the positioning bolt (104) is located in the positioning plate (102), and the outer surface of the positioning bolt (104) is threadedly connected with a locking nut (103).

2. A mandrel positioning mechanism for processing of a mandrel of a mold according to claim 1, characterized in that The bottom plate (201) is internally provided with an installation groove (114), the bottom of the auxiliary positioning block (105) is inserted with the inner wall of the installation groove (114), and the bottom plate (201) is internally provided with a locking groove (111).

3. A mould core positioning mechanism for processing of a mould core according to claim 2, characterised in that The auxiliary positioning block (105) is internally provided with extrusion grooves (110), the extrusion grooves (110) are provided in pairs, the inner walls of the extrusion grooves (110) are slidably connected with clamping blocks (109), and the outer surfaces of the clamping blocks (109) are clamped with the inner walls of the locking grooves (111).

4. A mandrel positioning mechanism for processing a mandrel of a mold according to claim 3, wherein The inner wall of the clamping block (109) is slidably connected with a limiting rod (112), the front and back surfaces of the limiting rod (112) are fixedly connected with the inner walls of the extrusion grooves (110), the back surface of the clamping block (109) is fixedly connected with a spring (108), the back surface of the spring (108) is fixedly connected with the inner wall of the extrusion groove (110), and the auxiliary positioning block (105) is internally provided with a through hole (113).

5. A mandrel positioning mechanism for processing of a mandrel of a mold according to claim 1, wherein The right side of the bottom plate (201) is fixedly connected with a motor (202), the left side output end of the motor (202) is fixedly connected with a connecting rod (204) through a shaft coupling, and the bottom plate (201) is internally provided with an adjusting groove (203).

6. A mandrel positioning mechanism for processing a mandrel of a mold according to claim 5, wherein The left side of the connecting rod (204) extends into the adjusting groove (203), the left side of the connecting rod (204) is fixedly connected with a worm (205), the left side of the worm (205) is rotatably connected with a fixed rod (208), and the left side of the fixed rod (208) is fixedly connected with the inner wall of the adjusting groove (203).

7. A mandrel positioning mechanism for processing a mandrel of a mold according to claim 6, wherein The back surface of the worm (205) is meshingly connected with a worm wheel (206), the inner wall of the worm wheel (206) is fixedly connected with a spline shaft (207), the outer surface of the spline shaft (207) is slidably connected with a threaded rod (209), and the bottom plate (201) is internally provided with a threaded hole.

8. A mandrel positioning mechanism for processing a mandrel of a mold according to claim 7, wherein The threaded hole and the installation groove (114) are in communication, the outer surface of the threaded rod (209) is threadedly connected with the inner wall of the threaded hole, the top of the threaded rod (209) penetrates through the through hole (113) and extends into the auxiliary positioning block (105), and the top of the threaded rod (209) abuts against the bottom of the T-shaped block (107).

Images