Special wax tree clamp for casting small parts by lost wax method
By designing special fixtures for wax tree seeds for small-piece lost wax casting, the problems of difficult alignment of wax molds and inaccurate positioning of wax strips are solved, and efficient welding and high-quality production of wax trees are achieved, and suitable for small-piece lost wax casting companies.
Patent Information
- Application Number
- CN202422512971.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-17
AI Technical Summary
In lost wax casting, the welding process of wax tree planting has problems such as the wax mold is not easy to align, the angle of the round rubber chassis is difficult to fix, and the wax strip is inaccurate, resulting in low efficiency and poor quality of wax tree planting.
A special fixture including a base, wax strip fixing unit, a rotating unit and a tightening unit is designed to fix the circular rubber chassis, drive the wax rod to rotate to a suitable angle, and accurately position and repair the wax strip through clamping claws and wax strip fixing blocks.
It improves the efficiency and quality of wax tree planting, saves the time for making wax tree, and is suitable for small-piece lost wax casting companies.
Smart Images
Figure CN223235018U_ABST
Abstract
Description
Technical field
[0001] The utility model relates to the technical field of auxiliary tools for lost wax casting, in particular to the technical field of a special clamp for small-piece lost wax casting of wax trees. [Background Technology]
[0002] Lost wax casting is a more commonly used type of precision casting. It refers to a casting method in which a pattern is made of a fusible material such as wax, and several layers of refractory coating are coated on the pattern to form a shell. After the pattern is melted out, it is baked at high temperature and then poured.
[0003] In lost wax casting, growing the wax tree is a crucial step. This involves inserting a wax stick onto a circular rubber base. The prepared wax pattern is then welded to the wax stick in layers along the circumference using a wax welder in a specific order, ultimately creating a tree-like shape.
[0004] Planting wax trees presents several difficulties: 1. The wax patterns are welded layer by layer onto wax rods, with each layer typically consisting of at least four wax patterns, depending on the size of the pattern. Therefore, individual wax patterns must be aligned vertically between layers. 2. The circular rubber chassis must be tilted 45 degrees during planting, and the angle must be constantly adjusted depending on the size and appearance of the wax pattern. 3. Welding the wax pattern requires skill; missing welds require a small wax strip to fill in any gaps. However, a small wax strip can be difficult to accurately position. Therefore, to improve the efficiency and quality of wax tree planting, a specialized fixture is needed to assist in this process. [Utility Model Content]
[0005] The purpose of the utility model is to solve the problems in the prior art and propose a special fixture for planting wax trees for small-part lost wax casting, which can fix the circular rubber chassis and the wax rod, and provide a suitable angle for the circular rubber chassis according to the size and shape of the wax model; it can drive the wax rod to rotate to a suitable angle to complete the wax welding; it can accurately position the small wax strips, facilitate the welding of omissions in the wax model, and improve the efficiency and quality of the wax tree.
[0006] To achieve the above-mentioned purpose, the utility model proposes a special fixture for wax trees used for small-scale lost wax casting, comprising a base part, a wax strip fixing unit, a rotating unit, and a clamping unit. The base part also includes a base, a base slide groove is opened on the base, and the wax strip fixing unit is connected to the base slide groove; the base is also connected to a hinge, and the hinge is connected to a movable bottom plate; the rotating unit is installed on the movable bottom plate; the rotating unit also includes a rotating top cover, and an internal gear of the top cover is provided inside the rotating top cover; the rotating top cover can rotate with the internal gear of the top cover; a clamping unit is also installed directly above the rotating unit; the clamping unit also includes a mating spur gear, a clamping claw mounting groove is opened on the mating spur gear, and a clamping claw is installed on the clamping claw mounting groove, and the clamping claw can move along the internal contour line of the clamping claw mounting groove.
[0007] Preferably, the wax strip fixing unit also includes a movable slider, which can move back and forth along the base slide groove; a linear guide rail is also installed on the movable slider, a linear slider is provided on the linear guide rail, and a universal ball base is bolted to the linear slider; the central position of the universal ball base is a concave spherical surface, and one end of the universal ball head is installed on the concave surface, and the other end of the universal ball head is connected to the wax strip fixing block.
[0008] Preferably, the rotating unit also includes a rotating base and a rotating top cover; the rotating base is hollow round, and a number of ball bearings are evenly placed along the edge; a circular platform is also provided inwardly along the edge of the rotating base, and a first rotating shaft is installed on the platform; a rotating spur gear is installed at one end of the first rotating shaft, and a rotating first bevel gear is installed at the other end of the first rotating shaft; a second rotating shaft is also installed on the thin wall of the rotating base, and a rotating second bevel gear is installed at one end of the second rotating shaft; a rotating knob is installed at the other end of the second rotating shaft; a rotating base support shaft is also centrally installed inside the rotating base; an internal gear of the top cover is provided inside the rotating top cover; the rotating top cover can rotate with the internal gear of the top cover; a top cover bearing is also centrally installed inside the rotating top cover; the top cover bearing is cooperatively connected with the rotating base support shaft; the internal gear of the top cover is meshed with the rotating spur gear for transmission; the rotating first bevel gear is meshed with the second bevel gear for transmission.
[0009] Preferably, the tightening unit also includes a tightening base, a tightening intermediate plate, and a wax tree top plate; the tightening base is in the shape of a hollow round cake, and a circular platform is provided inwardly along the edge of the tightening base, and a first tightening shaft is installed through the platform; a tightening spur gear is installed at one end of the first tightening shaft, and a first tightening bevel gear is installed at the other end of the first tightening shaft; a second tightening shaft is also installed through the thin wall of the tightening base, and a second tightening bevel gear is installed at one end of the second tightening shaft; a tightening knob is installed at the other end of the second tightening shaft; a tightening base support shaft is also centrally installed inside the tightening base; a matching spur gear is installed on the tightening base support shaft, and three There are a clamping claw mounting groove, and a clamping claw is installed on each clamping claw mounting groove; a tightening spacer is installed just above the mating spur gear; a wax tree top plate is also installed just above the tightening spacer; the wax tree top plate also includes a top plate hole and three top plate grooves; the middle section of the clamping claw is long, and the end of the clamping claw is arc-shaped; the ends of the three clamping claws are all located just above the tightening spacer; the middle sections of the three clamping claws are matched with the three top plate grooves; the top plate hole is matched with the tightening base support shaft; the mating spur gear and the tightening spur gear are meshed for transmission; the first tightening bevel gear and the second tightening bevel gear are meshed for transmission; the clamping claw can move along the inner contour line of the clamping claw mounting groove.
[0010] Preferably, the base portion further includes a support plate; three limiting grooves are further provided on the back of the movable bottom plate; when the support plate cooperates with different limiting grooves, the angles between the movable bottom plate and the base are 30°, 45°, and 60°.
[0011] The beneficial effects of the utility model are as follows: the utility model can fix the circular rubber chassis and the wax rod, drive the wax rod to rotate to a suitable angle, and provide convenient operation for the wax tree welding process; it can provide positioning for the small wax strips when repairing the wax tree, improve the efficiency and quality of planting the wax tree, save the wax tree production time, and can be widely used in enterprises that adopt the lost wax casting process.
[0012] The features and advantages of this utility model will be described through the embodiments in conjunction with the attached Figure 1-10 Provide detailed explanation.
Brief Description of the Drawings
[0013] Figure 1 This is a main perspective structural diagram of a special fixture for wax trees used in lost wax casting of small parts in the utility model;
[0014] Figure 2 This is a structural diagram of the base portion of a special fixture for wax trees used in lost wax casting of small parts in the utility model;
[0015] Figure 3 This is a structural diagram of a wax strip fixing unit of a special fixture for wax trees used in lost wax casting of small parts in the utility model;
[0016] Figure 4 This is a split structural diagram of the rotating part of a special fixture for wax trees used in lost wax casting of small parts in the utility model;
[0017] Figure 5 This is a diagram showing the internal structure of the top cover of the rotating part of a special fixture for wax trees used in lost wax casting of small parts.
[0018] Figure 6 This is a diagram showing the internal structure of a clamping unit of a special fixture for wax trees used in lost wax casting of small parts.
[0019] Figure 7 This is a diagram showing the structure of a clamping unit for a wax tree used in lost wax casting of small parts.
[0020] Figure 8 This is a schematic diagram of the clamping unit and clamping claws of a special fixture for wax trees used in lost wax casting of small parts in the utility model;
[0021] Figure 9 This is a diagram of the internal slots and holes of the wax tree top plate of a special fixture for wax trees used in lost wax casting of small parts.
[0022] Figure 10 The utility model discloses a special fixture for planting wax trees used for small-part lost wax casting and a working diagram of the wax tree.
[0023] In the figure: 1-base part, 11-base, 12-support plate, 13-movable bottom plate, 14-hinge, 15-base slide, 2-wax strip fixing unit, 21-moving slider, 22-linear guide, 23-linear slider, 24-universal ball base, 25-universal ball head, 26-wax strip fixing block, 3-rotating unit, 31-rotating base, 311-rotating base support shaft, 32-ball, 33-first rotating axis, 34-rotating first bevel gear, 35-second rotating axis, 36-rotating top cover, 361-top cover internal gear , 362-top cover bearing, 37-rotating spur gear, 38-rotating second bevel gear, 39-rotating knob, 4-clamping unit, 41-clamping base, 411-clamping base support shaft, 412-clamping intermediate plate, 42-first tightening shaft, 43-first tightening bevel gear, 44-second tightening shaft, 45-second tightening bevel gear, 46-clamping spur gear, 47-clamping knob, 48-matching spur gear, 481-clamping claw mounting groove, 49-wax tree top plate, 491-top plate hole, 492-top plate groove, 410-clamping claw. [Specific implementation method]
[0024] See Figures 1-10 The utility model includes a base part 1, a wax strip fixing unit 2, a rotating unit 3, and a tightening unit 4. The base part 1 also includes a base 11, a base slide 15 is opened on the base 11, and the wax strip fixing unit 2 is connected to the base slide 15; the base 11 is also connected to a hinge 14, and the hinge 14 is connected to a movable bottom plate 13; the rotating unit 3 is installed on the movable bottom plate 13; the rotating unit 3 also includes a rotating top cover 36, and an internal gear 361 of the top cover is arranged inside the rotating top cover 36; the rotating top cover 36 can rotate together with the internal gear 361 of the top cover; the tightening unit 4 is also installed directly above the rotating unit 3; the tightening unit 4 also includes a mating spur gear 48, a clamping claw mounting groove 481 is opened on the mating spur gear 48, and a clamping claw 410 is installed on the clamping claw mounting groove 481, and the clamping claw 410 can move along the internal contour line of the clamping claw mounting groove 481.
[0025] Specifically, the wax strip fixing unit 2 also includes a movable slider 21, which can move back and forth along the base slide groove 15; a linear guide rail 22 is also installed on the movable slider 21, and a linear slider 23 is provided on the linear guide rail 22, and a universal ball base 24 is also bolted to the linear slider 23; the central position of the universal ball base 24 is a concave spherical surface, and one end of the universal ball head 25 is installed on the concave surface, and the other end of the universal ball head 25 is connected to the wax strip fixing block 26.
[0026] Specifically, the rotating unit 3 also includes a rotating base 31 and a rotating top cover 36; the rotating base 31 is in the shape of a hollow pancake, with a number of balls 32 evenly placed along the edge; the rotating base 31 is also provided with a circular platform inwardly along the edge, and a first rotating shaft 33 is installed on the platform; a rotating spur gear 37 is installed at one end of the first rotating shaft 33, and a rotating first bevel gear 34 is installed at the other end of the first rotating shaft 33; a second rotating shaft 35 is also installed on the thin wall of the rotating base 31, and a rotating second bevel gear 38 is installed at one end of the second rotating shaft 35; A rotating knob 39 is installed at the other end of the second rotating shaft 35; a rotating base support shaft 311 is also installed in the center of the rotating base 31; an internal top cover gear 361 is provided inside the rotating top cover 36; the rotating top cover 36 can rotate together with the internal top cover gear 361; a top cover bearing 362 is also installed in the center of the rotating top cover 36; the top cover bearing 362 is connected to the rotating base support shaft 311; the internal top cover gear 361 is engaged with the rotating spur gear 37 for transmission; the rotating first bevel gear 34 is engaged with the second bevel gear 38 for transmission.
[0027] Specifically, the tightening unit 4 also includes a tightening base 41, a tightening intermediate plate 412, and a wax tree top plate 49; the tightening base 41 is in the shape of a hollow round cake, and a circular platform is provided inward along the edge of the tightening base 41, on which a first tightening shaft 42 is installed; a tightening spur gear 46 is installed at one end of the first tightening shaft 42, and a first tightening bevel gear 43 is installed at the other end of the first tightening shaft 42; a second tightening shaft 44 is also installed on the thin wall of the tightening base 41, and a second tightening bevel gear 45 is installed at one end of the second tightening shaft 44; a tightening knob 47 is installed at the other end of the second tightening shaft 44; a tightening base support shaft 411 is also centrally installed inside the tightening base 41; a matching spur gear 48 is installed on the tightening base support shaft 411, and three clamping claw mounting grooves 481 are also provided on the upper surface of the matching spur gear 48 , a clamping claw 410 is installed on each clamping claw mounting groove 481; a tightening spacer 412 is installed directly above the mating spur gear 48; a wax tree top plate 49 is also installed directly above the tightening spacer 412; the wax tree top plate 49 also includes a top plate hole 491 and three top plate grooves 492; the middle section of the clamping claw 410 is long, and the end of the clamping claw 410 is arc-shaped; the ends of the three clamping claws 410 are all located directly above the tightening spacer 412; the middle sections of the three clamping claws 410 are matched with the three top plate grooves 492; the top plate hole 491 is matched with the tightening base support shaft 411; the mating spur gear 48 is engaged with the tightening spur gear 46 for transmission; the first tightening bevel gear 43 is engaged with the second tightening bevel gear 45 for transmission; the clamping claw 410 can move along the internal contour line of the clamping claw mounting groove 481.
[0028] Specifically, the base portion 1 also includes a support plate 12; three limiting grooves are also provided on the back of the movable bottom plate 13; when the support plate 12 cooperates with different limiting grooves, the angles between the movable bottom plate 13 and the base 11 are 30°, 45°, and 60°.
[0029] Working process of this utility model:
[0030] The utility model discloses a special fixture for planting wax trees for small-part lost wax casting, and the working process is described in conjunction with the accompanying drawings.
[0031] The state shown in the accompanying drawings is the state when the clamp is in use. According to the needs of the wax tree planting work, the support plate 12 is clamped into the limit groove behind the movable base plate 13, so that the rotating unit 3 and the tightening unit 4 installed on the movable base plate 13 are at 30°, 45° and 60°; then the circular rubber base plate with the wax stick installed is placed in the wax tree top plate 49, and the tightening knob 47 is adjusted. The second tightening bevel gear 45 coaxial with the tightening knob 47 rotates, driving the first tightening bevel gear 43; the first tightening bevel gear 43 is rotated. The movement drives the rotation of the tightening spur gear 46, and finally allows the matching spur gear 48 to rotate; the matching spur gear 48 is provided with 3-adjustment clamping claw mounting grooves 481, and each clamping claw mounting groove is equipped with a clamping claw 410; the clamping claw 410 can move along the internal contour line of the clamping claw 410 mounting groove 410 to achieve expansion or contraction movement; that is, by adjusting the tightening knob 47, the clamping claw 410 can be controlled, and the clamping claw 410 can lock the circular rubber base plates of various diameters placed on the wax tree top plate 49.
[0032] Adjust the rotating knob 39, and the rotating second bevel gear 38 coaxial with the rotating knob 39 rotates, driving the rotating first bevel gear 34; the movement of the rotating first bevel gear 34 drives the rotation of the rotating spur gear 37, and finally the internal gear 361 of the top cover can be rotated; the internal gear 361 of the top cover is integrated with the rotating top cover 36, and a ball 32 is installed between the rotating top cover 36 and the edge of the rotating base 31; the rotation of the internal gear 361 of the top cover can be driven by the ball, so that the rotating top cover 36 can be rotated synchronously; that is, by adjusting the rotating knob 39, the rotating top cover 36 can be rotated, and the tightening unit 4 installed on the rotating top cover 36 can also be rotated. Finally, through the tightening unit 4, the circular rubber base plates of various diameters installed on the wax tree top plate 49 are rotated.
[0033] The movable slider 21 can move back and forth in the base slide groove 15. According to the working situation, the movable slider 21 is adjusted to a suitable position. The linear guide 22 is installed on the movable slider 21, and the linear slider 23 can move back and forth on the linear guide 22; by moving the slider 21 and the linear slider 23, the universal ball base 24 installed on the linear slider 23 can obtain a relative movement of the Y axis and the Z axis, and the universal ball base 24 can quickly approach the vicinity of the wax tree that needs to be repaired; the universal ball head 25 is installed on the universal ball base 24, and the wax strip fixing block 26 can be rotated by rotating the universal ball head 25; the wax strip fixing block 26 is provided with a fine groove, and the wax strip for repair can be installed between the grooves, that is, the wax strip can be rotated at multiple angles by rotating the wax strip fixing block 26 until it accurately falls on the point on the wax tree that needs to be repaired.
[0034] The whole process of planting wax trees is operated by this device: the circular rubber base is placed in the wax tree top plate 49, and the tightening knob 47 is adjusted to allow the clamping claw 410 to clamp the circular rubber base; the initial welding position is selected, and the welding work of the wax mold on the wax tree rod in this row is completed by the welding gun; the rotating knob 39 is adjusted to allow the rotating top cover 36 to rotate, thereby rotating the circular rubber base, and after moving to the next processing point, the wax mold is welded to the wax tree rod by the welding gun, and the above steps are repeated until the whole wax tree is processed; if the wax welding operation is wrong and there are missing welds, the moving slider 21 and the linear slider 23 are adjusted to allow the wax strip placed on the wax strip fixing block 26 to approach the missing point of the wax tree, and then the wax strip fixing block 26 is rotated until the wax strip accurately falls on the point on the wax tree that needs to be repaired, and the repair work is completed; the utility model plays the role of fixing the wax tree, assisting the angle rotation of the wax tree planting, and positioning the wax strip when repairing the wax tree, thereby improving the efficiency and quality of the wax tree planting and saving the time of wax tree production.
[0035] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.
Claims
1. A special fixture for planting wax trees for small parts lost wax casting, characterized by: The invention comprises a base part (1), a wax strip fixing unit (2), a rotating unit (3), and a tightening unit (4); the base part (1) further comprises a base (11); a base slide groove (15) is provided on the base (11); the wax strip fixing unit (2) is connected to the base slide groove (15); the base (11) is further connected to a hinge (14); the hinge (14) is connected to a movable bottom plate (13); the rotating unit (3) is installed on the movable bottom plate (13); the rotating unit (3) further comprises a rotating top cover (36); The rotating top cover (36) is provided with an internal gear (361) of the top cover; the rotating top cover (36) can rotate together with the internal gear (361) of the top cover; a tightening unit (4) is also installed directly above the rotating unit (3); the tightening unit (4) also includes a matching spur gear (48), a clamping claw mounting groove (481) is opened on the matching spur gear (48), a clamping claw (410) is installed on the clamping claw mounting groove (481), and the clamping claw (410) can move along the inner contour line of the clamping claw mounting groove (481).
2. A special fixture for planting wax trees for small-part lost wax casting according to claim 1, characterized in that: The wax strip fixing unit (2) further comprises a movable slider (21), which can move back and forth along the base slide groove (15); a linear guide rail (22) is further mounted on the movable slider (21), a linear slider (23) is provided on the linear guide rail (22), and a universal ball base (24) is further bolted to the linear slider (23); the central position of the universal ball base (24) is an inwardly concave spherical surface, one end of a universal ball head (25) is mounted on the inwardly concave surface, and the other end of the universal ball head (25) is connected to a wax strip fixing block (26).
3. The special fixture for planting wax trees for small-part lost wax casting according to claim 1, characterized in that: The rotating unit (3) further comprises a rotating base (31) and a rotating top cover (36); the rotating base (31) is in the shape of a hollow circular cake, with a plurality of balls (32) evenly placed along the edge; the rotating base (31) is also provided with a circular platform inwardly along the edge, and a first rotating shaft (33) is installed on the platform; a rotating spur gear (37) is installed at one end of the first rotating shaft (33), and a rotating first bevel gear (34) is installed at the other end of the first rotating shaft (33); a second rotating shaft (35) is also installed on the thin wall of the rotating base (31), and a rotating second bevel gear (38) is installed at one end of the second rotating shaft (35); the second rotating shaft (35) is provided with a rotating second bevel gear (38) at one end; A rotating knob (39) is installed at the other end of the rotating shaft (35); a rotating base support shaft (311) is also installed in the center of the rotating base (31); a top cover internal gear (361) is provided in the rotating top cover (36); the rotating top cover (36) can rotate together with the top cover internal gear (361); a top cover bearing (362) is also installed in the center of the rotating top cover (36); the top cover bearing (362) is connected to the rotating base support shaft (311); the top cover internal gear (361) is meshed with the rotating spur gear (37) for transmission; the rotating first bevel gear (34) is meshed with the second bevel gear (38) for transmission.
4. A special fixture for planting wax trees for small-part lost wax casting according to claim 1, characterized in that: The tightening unit (4) further comprises a tightening base (41), a tightening intermediate plate (412), and a wax tree top plate (49); the tightening base (41) is in the shape of a hollow round cake, and a circular platform is provided inwardly along the edge of the tightening base (41), and a first tightening shaft (42) is installed on the platform; a tightening spur gear (46) is installed at one end of the first tightening shaft (42), and a first tightening bevel gear (43) is installed at the other end of the first tightening shaft (42); the tightening base (41 ) thin wall is also installed with a second tightening shaft (44), one end of the second tightening shaft (44) is installed with a second tightening bevel gear (45); the other end of the second tightening shaft (44) is installed with a tightening knob (47); the inside of the tightening base (41) is also centrally installed with a tightening base support shaft (411); the tightening base support shaft (411) is installed with a matching spur gear (48), and the upper surface of the matching spur gear (48) is also opened with three clamping claw mounting grooves (481), each A clamping claw (410) is installed on each of the clamping claw installation grooves (481); a tightening plate (412) is installed just above the mating spur gear (48); a wax tree top plate (49) is also installed just above the tightening plate (412); the wax tree top plate (49) also includes a top plate hole (491) and three top plate grooves (492); the middle section of the clamping claw (410) is in the shape of a long strip, and the end of the clamping claw (410) is in the shape of an arc; the ends of the three clamping claws (410) are The ends are all located directly above the tightening intermediate plate (412); the middle sections of the three clamping claws (410) cooperate with the three top plate grooves (492); the top plate hole (491) cooperates with the tightening base support shaft (411); the matching spur gear (48) and the tightening spur gear (46) are meshed for transmission; the first tightening bevel gear (43) and the second tightening bevel gear (45) are meshed for transmission; the clamping claw (410) can move along the inner contour line of the clamping claw mounting groove (481).
5. The special fixture for planting wax trees for small-part lost wax casting according to claim 1, characterized in that: The base portion (1) further comprises a support plate (12); three limiting grooves are further provided on the back of the movable bottom plate (13); when the support plate (12) is matched with different limiting grooves, the angles between the movable bottom plate (13) and the base (11) are 30°, 45°, and 60°.