A cast tree string positioning fixture

Abstract

The utility model relates to mechanical processing fixture technical field especially relates to a kind of casting tree string positioning fixture, including jig, the jig upper surface is fixedly installed with erection block, first threaded rod is rotatably installed in the sliding slot, sliding block is symmetrically threaded on the first threaded rod, two the sliding block is slidably configured in sliding slot, and sliding block top end is fixedly installed with locating block, the jig is fixedly installed with servo motor;Second threaded rod is rotatably installed in the mounting frame, clamping arm is symmetrically threaded on the second threaded rod, resistance block is magnetically attracted in the mounting port by magnetic attraction component, the resistance block surface is provided with clamping groove.This casting tree string positioning fixture is replaced by mechanical automatic positioning clamping instead of artificial, avoids cutting risk and guarantees safety, realizes the automatic action of locating block and clamping arm by servo motor, drive motor, reduces intensity and improves efficiency, relies on first threaded rod and resistance block with clamping groove multidimensional fixation, prevents deviation and preserves processing quality.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, and in particular to a positioning fixture for a casting tree string. Background Technology

[0002] In the field of casting processing, it is often necessary to cut parts off the casting tree to meet the needs of subsequent production or use. The existing methods for cutting casting tree parts mostly rely on manual handling of the tree and then using a saw blade to cut the parts.

[0003] Manually cutting tree branches by hand involves direct contact between the operator and the saw blade and other cutting components, posing a high risk of injury and serious threat to the operator's safety. Secondly, manual operation is physically demanding, and prolonged work can lead to operator fatigue, affecting efficiency and increasing the risk of errors. Furthermore, manually holding the tree branch makes precise positioning during cutting difficult, leading to deviations that affect the quality of the parts and fail to meet the requirements of high-precision machining. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the existing technology: the cutting of existing casting tree string parts mostly relies on manual holding of the tree string and then cutting the parts with a saw blade. This has the problems of personnel directly contacting the cutting parts, which is dangerous and easy to get injured. It also has the problems of high labor intensity, personnel fatigue affecting efficiency and easy to increase risk due to errors. In addition, the positioning accuracy is insufficient and the cutting deviation affects the quality of the parts. Therefore, a casting tree string positioning fixture is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A casting tree string positioning fixture includes a jig, on the upper surface of which an erection block for erecting the casting tree string is fixedly installed. The upper surface of the jig has two through holes and a horizontally formed sliding groove. A first threaded rod with opposite thread directions at its left and right ends is horizontally rotatably installed in the sliding groove. Sliding blocks are symmetrically threaded onto the first threaded rod. Both sliding blocks are slidably disposed in the sliding groove, and a positioning block is fixedly installed at the top of the sliding blocks. A servo motor is fixedly installed on the side wall of the jig. The output shaft of the servo motor passes through the sliding groove and is fixedly connected to the first threaded rod. A mounting frame is fixedly installed on the surface of the fixture. A second threaded rod with opposite thread directions at its left and right ends is horizontally rotatably mounted inside the mounting frame. Clamping arms are symmetrically threaded onto the second threaded rod. The clamping arms are restricted from rotation by a limiting component. The second threaded rod is controlled to rotate by a driving component. Each of the two clamping arms has an installation opening on its side that is close to each other. A stop block is magnetically attracted to the installation opening by a magnetic component. The surface of the stop block has a slot for locking the protrusions on the side wall of the casting tree string.

[0006] Preferably, the limiting component includes two limiting rods that are horizontally fixedly installed in the mounting frame, and the two clamping arms are slidably sleeved on the two limiting rods.

[0007] Preferably, the drive assembly includes a drive motor fixedly mounted on the side wall of the mounting frame, the output shaft of the drive motor passing through the mounting frame and fixedly connected to a second threaded rod.

[0008] Preferably, the magnetic suction component includes a magnetic sheet, the mounting opening has a slot, the magnetic sheet is adhered to the slot wall, and an insert is fixedly installed on the side of the abutment away from the slot, the insert is inserted into the slot, and the insert is made of magnetic material.

[0009] Preferably, anti-slip pads are adhered to the sides of the two clamping arms that are close to each other, and the anti-slip pads are made of rubber.

[0010] Preferably, the bottom surface of the sliding block is in sliding contact with the groove wall, and the bottom surface of the sliding block is coated with polytetrafluoroethylene.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This casting tree string positioning fixture replaces manual hand-held operation with automated mechanical positioning and clamping, avoiding personnel contact with the cutting parts, reducing risks at the source, and ensuring personal safety. At the same time, servo motors and drive motors drive the positioning blocks and clamping arms to move automatically, eliminating the need for manual labor for fixing. This reduces labor intensity, time costs, and improves processing efficiency. Furthermore, the first threaded rod achieves symmetrical centering of the positioning blocks, and the clamping arms with slotted blocks hold the tree string protrusions in place, providing multi-dimensional stable fixation, preventing cutting deviation, ensuring part processing quality, and meeting high precision requirements. Attached Figure Description

[0012] Figure 1 This is a frontal three-dimensional structural diagram of a casting tree string positioning fixture proposed in this utility model; Figure 2 This is a side perspective view of a casting tree string positioning fixture proposed in this utility model; Figure 3 This is a partial three-dimensional structural diagram of the fixture and the casting tree in this utility model; Figure 4 This is a partial three-dimensional structural diagram of the fixture in this utility model; Figure 5 This is a partial three-dimensional disassembled structural diagram of the clamping arm and the stop block in this utility model; Figure 6 for Figure 3 Enlarged view of the structure at point A in the middle; Figure 7 for Figure 4 Enlarged view of the structure at point B in the middle.

[0013] In the diagram: 1. Fixture, 2. Erection block, 3. Through hole, 4. Slide groove, 5. First threaded rod, 6. Positioning block, 7. Servo motor, 8. Mounting frame, 9. Second threaded rod, 10. Clamping arm, 11. Mounting port, 12. Abutment block, 13. Slot, 14. Limiting rod, 15. Drive motor, 16. Slot, 17. Insertion block, 18. Sliding block. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0016] Reference Figures 1-6 A casting tree string positioning fixture includes a jig 1. A support block 2 for assembling the casting tree string is fixedly mounted on the upper surface of the jig 1, providing bottom support for the tree string. Two through holes 3 are formed on the upper surface of the jig 1. A horizontal groove 4 is formed on the upper surface of the jig 1, and a first threaded rod 5 with opposite thread directions at its left and right ends is horizontally rotatably mounted within the groove 4. Figure 7 As shown, the first threaded rod 5 is symmetrically threaded with sliding blocks 18. Both sliding blocks 18 are slidably disposed in the slide groove 4, and a positioning block 6 is fixedly installed on the top of the sliding block 18. A servo motor 7 is fixedly installed on the side wall of the fixture 1. The output shaft of the servo motor 7 passes through the slide groove 4 and is fixedly connected to the first threaded rod 5.

[0017] A mounting frame 8 is fixedly mounted on the surface of fixture 1. A second threaded rod 9 with opposite thread directions at its left and right ends is horizontally rotatably mounted inside the mounting frame 8. Clamping arms 10 are symmetrically threaded onto the second threaded rod 9. The clamping arms 10 are restricted from rotation by a limiting component, which includes two limiting rods 14 horizontally fixed inside the mounting frame 8. Both clamping arms 10 are slidably mounted on the two limiting rods 14. The second threaded rod 9 is controlled to rotate by a drive assembly, which includes a drive motor 15 fixedly mounted on the side wall of the mounting frame 8. The output shaft of the drive motor 15 passes through the mounting frame 8 and is fixedly connected to the second threaded rod 9. Each of the two clamping arms 10 has a mounting opening 11 on its side that is close to each other. A stop block 12 is magnetically attracted inside the mounting opening 11 by a magnetic attraction component. The surface of the stop block 12 has a slot 13 for locking the protrusions on the side wall of the casting tree string, which, together with the positioning block 6, achieves multi-dimensional fixation of the tree string.

[0018] In use, first place the casting tree string on the erecting block 2, start the servo motor 7 to drive the first threaded rod 5 to rotate, so that the two positioning blocks 6 move towards each other along the slide groove 4 to center and position the bottom of the tree string. Then start the drive motor 15 to drive the second threaded rod 9 to rotate, so that the two clamping arms 10 move towards each other along the limiting rod 14 until the slot 13 of the abutment block 12 engages with the protrusion on the side wall of the tree string, thus completing the clamping and fixing of the tree string. Then it can be used with external cutting equipment to perform parts cutting operations.

[0019] Reference Figure 5 The magnetic component includes a magnetic sheet. The mounting port 11 has a slot 16 on its wall. The magnetic sheet is adhered to the slot wall of the slot 16. The side of the abutment 12 away from the slot 13 is fixedly installed with an insert 17. The insert 17 is inserted into the slot 16 and is made of magnetic material.

[0020] When it is necessary to install the abutment 12, align the insert 17 on the abutment 12 with the slot 16 of the clamping arm 10 and insert it. The magnetic sheet in the slot 16 will generate an attraction force with the magnetic insert 17, thereby firmly fixing the abutment 12 in the mounting port 11. When it is necessary to replace the abutment 12 to adapt to the different specifications of the casting tree string protrusion, simply apply external force to pull the abutment 12 out of the mounting port 11 to release the attraction between the magnetic sheet and the insert 17. Then replace it with a new abutment 12 with the corresponding slot 13 and repeat the above insertion action to complete the replacement.

[0021] This magnetic connection structure allows for quick disassembly and replacement of the abutment block 12 without the need for tools, greatly improving the adaptability of the fixture to castings of different specifications, meeting diverse processing needs, and ensuring the connection stability of the abutment block 12 during the clamping process.

[0022] Both clamping arms 10 have anti-slip pads glued to their sides that are close to each other. The anti-slip pads are made of rubber.

[0023] The rubber protective pad increases the friction between the clamping arm 10 and the surface of the cast tree string, preventing the tree string from sliding or shifting during clamping, further improving clamping stability and ensuring the accuracy of subsequent cutting operations.

[0024] The bottom surface of the sliding block 18 is in sliding contact with the wall of the groove 4, and the bottom surface of the sliding block 18 is coated with polytetrafluoroethylene.

[0025] The polytetrafluoroethylene coating has a low coefficient of friction, which reduces the frictional resistance between the sliding block 18 and the groove wall of the slide 4 when the sliding block 18 slides, making the adjustment of the sliding block 18 along the slide 4 smoother, while reducing component wear and extending the service life of the sliding block 18 and the slide 4.

[0026] In this invention, the mechanical structure, including jig 1, mounting block 2, positioning block 6, and clamping arm 10, enables automatic positioning and clamping of the casting tree string, replacing manual hand operation and avoiding direct contact between personnel and the cutting parts. This fundamentally reduces operational risks and ensures the safety of operators. The servo motor 7 drives the first threaded rod 5 to move the positioning block 6, and the drive motor 15 drives the second threaded rod 9 to move the clamping arm 10 automatically. This eliminates the need for manual labor to fix the tree string, reducing labor intensity and time costs, and effectively improving processing efficiency. The first threaded rod 5 drives the symmetrical positioning block 6 for centering and positioning, and the clamping arm 10 with a retaining block 12 with a slot 13 secures the tree string protrusions, achieving multi-dimensional precise fixation. This avoids deviations caused by tree string swaying during cutting, significantly improving the quality of parts processing and meeting the requirements of high-precision processing.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A casting tree string positioning fixture, comprising a jig (1), characterized in that, The jig (1) has a fixed mounting block (2) for erecting a casting tree string. The jig (1) has two through holes (3) on its upper surface. The jig (1) has a horizontal groove (4) on its upper surface. The groove (4) has a first threaded rod (5) with opposite thread directions at its left and right ends. The first threaded rod (5) has a sliding block (18) symmetrically threaded on its first threaded rod (5). Both sliding blocks (18) are slidably arranged in the groove (4). The top of the sliding block (18) is fixedly mounted with a positioning block (6). The jig (1) has a servo motor (7) fixedly mounted on its side wall. The output shaft of the servo motor (7) passes through the groove (4) and is fixedly connected to the first threaded rod (5). The fixture (1) has a mounting frame (8) fixedly mounted on its surface. A second threaded rod (9) with opposite thread directions at its left and right ends is horizontally rotatably mounted inside the mounting frame (8). A clamping arm (10) is symmetrically threaded onto the second threaded rod (9). The clamping arm (10) is restricted from rotation by a limiting component. The second threaded rod (9) is controlled to rotate by a driving component. The two clamping arms (10) have mounting openings (11) on their sides that are close to each other. A stop block (12) is magnetically attracted inside the mounting opening (11) by a magnetic suction component. The surface of the stop block (12) has a slot (13) for locking the protrusions on the side wall of the casting tree string.

2. The casting tree string positioning fixture according to claim 1, characterized in that, The limiting component includes two horizontally fixed limiting rods (14) installed in the mounting frame (8), and the two clamping arms (10) are slidably sleeved on the two limiting rods (14).

3. A casting tree string positioning fixture according to claim 1, characterized in that, The drive assembly includes a drive motor (15) fixedly mounted on the side wall of the mounting frame (8), the output shaft of the drive motor (15) passing through the mounting frame (8) and fixedly connected to the second threaded rod (9).

4. A casting tree string positioning fixture according to claim 1, characterized in that, The magnetic component includes a magnetic sheet. The mounting port (11) has a slot (16) on its wall. The magnetic sheet is bonded to the slot wall of the slot (16). The abutment (12) has a plug (17) fixedly installed on the side away from the slot (13). The plug (17) is inserted into the slot (16) and is made of magnetic material.

5. A casting tree string positioning fixture according to claim 1, characterized in that, The two clamping arms (10) are each attached with anti-slip pads on the side that is close to each other. The anti-slip pads are made of rubber.

6. A casting tree string positioning fixture according to claim 1, characterized in that, The surfaces of the sliding blocks (18) are all in sliding contact with the groove wall of the sliding groove (4), and the bottom surfaces of the sliding blocks (18) are all coated with polytetrafluoroethylene.

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