Shell-making variable-pitch four-claw tool

Abstract

The utility model relates to a shell-making variable-pitch four-claw tool, and belongs to the technical field of investment casting. Comprising a supporting cross beam, a wax mould rod clamping assembly A and a wax mould rod clamping assembly B. The wax mould rod clamping assembly A and the wax mould rod clamping assembly B are symmetrically distributed. A first wax mold rod clamping assembly, a second wax mold rod clamping assembly and a first variable-pitch driving part for adjusting the distance between the first wax mold rod clamping assembly and the second wax mold rod clamping assembly are mounted on the front mounting plate, and the wax mold rod clamping assembly B comprises a rear mounting plate fixedly connected with the supporting cross beam; and a third wax mold rod clamping assembly, a fourth wax mold rod clamping assembly and a second variable-pitch driving part for adjusting the distance between the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are mounted on the rear mounting plate. The wax mold rod clamping device has the advantages that the distance between each pair of wax mold rod clamping assemblies is adjusted according to needs, and the wax mold rod clamping device is suitable for the situation that the working distance between a shell-making mechanical arm and a shell-making suspension line is not matched.

Description

Technical Field

[0001] The utility model relates to a variable-pitch four-claw tool for shell making, belonging to the technical field of investment casting. Background Art

[0002] Investment casting is also called lost wax casting, which includes the processes of pressing wax, trimming wax, forming trees, dipping slurry, melting wax, pouring molten metal and post-processing. Lost wax casting is to use wax to make a wax mold of the part to be cast, and then apply mud on the wax mold, which is the mud mold. After the mud mold is dried, put it into hot water to melt the wax mold inside. Take out the mud mold with melted wax mold and bake it into a ceramic mold. Once baked. Generally, a pouring port is left when making the mud mold, and then the molten metal is poured from the pouring port. After cooling, the required parts are made.

[0003] The patent application with patent number CN202122564303.4 is a universal manipulator-assisted investment casting special manipulator shell clamping tool, including a manipulator connecting plate, the back of the manipulator connecting plate is connected to the manipulator, and a wax mold rod clamping assembly is respectively provided at both ends of the front side of the manipulator connecting plate, and the wax mold rod clamping assembly includes a push-pull mechanism fixed on the surface of the manipulator connecting plate, a clamping hook is installed on the front end surface of the push-pull mechanism, and a clamping head cooperating with the clamping hook is provided at the telescopic end of the push-pull mechanism, and the clamping hook and the clamping head cooperate to clamp the wax mold rod.

[0004] Although the above patent can realize the ability to clamp the wax model tree and send it to the four-head eight-arm machine for operation, and then remove the wax model tree and send it to the shell making line to complete the hanging, the current technical considerations are not comprehensive and have the following disadvantages: the current existing tooling is a fixed tooling, and when the spacing between adjacent shell modules on the shell making robot does not match the spacing between adjacent shell modules on the shell making hanging line, the above-mentioned robot cannot be used to transfer the shell modules, resulting in low automation work efficiency.

[0005] In order to solve one of the above problems, a shell-making variable-pitch four-claw tooling is urgently needed. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is: how to adjust the spacing between each pair of wax mold rod clamping assemblies as needed, which is suitable for the situation where the working spacing between the shell making robot and the shell making suspension line does not match. For this purpose, a shell making variable-pitch four-claw tooling is provided.

[0007] The shell-making variable-pitch four-claw tooling described in the utility model is characterized in that it includes a supporting crossbeam and a wax mold rod clamping assembly A and a wax mold rod clamping assembly B symmetrically distributed at both ends of the supporting crossbeam, the wax mold rod clamping assembly A includes a front mounting plate fixedly connected to the supporting crossbeam, the first wax mold rod clamping assembly and the second wax mold rod clamping assembly as well as a first variable-pitch driving component for adjusting the distance between the first wax mold rod clamping assembly and the second wax mold rod clamping assembly are installed on the front mounting plate, the wax mold rod clamping assembly B includes a rear mounting plate fixedly connected to the supporting crossbeam, the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly as well as a second variable-pitch driving component for adjusting the distance between the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are installed on the rear mounting plate.

[0008] Preferably, a first horizontal slide rail and a second horizontal slide rail are respectively provided at both ends of the outer side surface of the front mounting plate, and a first wax mold rod clamping assembly and a second wax mold rod clamping assembly are respectively slidably mounted on the first slide rail and the second slide rail, and the first variable pitch driving component includes a first push-pull cylinder and a second push-pull cylinder installed on the upper and lower sides of the front mounting plate, the telescopic end of the first push-pull cylinder is connected to the first wax mold rod clamping assembly through a first connecting block, and is used to push the first wax mold rod clamping assembly to reciprocate along the length direction of the first slide rail, and the telescopic end of the second push-pull cylinder is connected to the second wax mold rod clamping assembly through a second connecting block, and is used to push the second wax mold rod clamping assembly to reciprocate along the length direction of the second slide rail, so that the distance between the first wax mold rod clamping assembly and the second wax mold rod clamping assembly can be adjusted.

[0009] Preferably, the first wax mold rod clamping assembly includes a first slider slidingly matched with the first slide rail, and a push-pull mechanism fixed on the surface of the first slider, a clamping hook is installed on the front end surface of the push-pull mechanism, and a clamping head matching with the clamping hook is provided at the telescopic end of the push-pull mechanism, and the clamping hook and the clamping head cooperate to clamp the wax mold rod.

[0010] Preferably, the push-pull mechanism is a clamping cylinder, and the clamping cylinder is a thin cylinder, and the front and rear end surfaces are both flat.

[0011] Preferably, the clamping hook comprises a hook body A and a hook body B which are parallel to each other, one end of the hook body A and the hook body B are fixed on the front end surface of the clamping cylinder and are located on both sides of the telescopic rod of the clamping cylinder. The end of the hook body A away from the clamping cylinder has a hanging groove A, and the end of the hook body B away from the clamping cylinder has a hanging groove B. When the telescopic rod is in an extended state, the clamping head abuts against the outer wall of the wax model rod.

[0012] Preferably, a V-shaped groove cooperating with the outer wall of the wax mold rod is provided at one end of the clamping head away from the clamping cylinder, and a connecting block is integrally formed between the hook body A and the hook body B. The connecting block is provided with a slide groove A slidably cooperating with the clamping head, and also includes a limit plate A. The two ends of the limit plate A are respectively fixed at the middle position of the upper surface of the hook body A and the hook body B, and the lower surface of the limit plate A cooperates with the upper surface of the clamping head with a small gap.

[0013] Preferably, a first stroke limit block and a second stroke limit block are respectively provided on both sides of the first wax mold rod clamping assembly, and the first stroke limit block and the second stroke limit block are both fixed on the front mounting plate.

[0014] Preferably, the second wax mold rod clamping assembly and the first wax mold rod clamping assembly have the same structure.

[0015] Preferably, the wax mold rod clamping assembly A and the wax mold rod clamping assembly B have the same structure.

[0016] Preferably, a third horizontal slide rail and a fourth horizontal slide rail are respectively provided at both ends of the outer side surface of the rear mounting plate, and a third wax mold rod clamping assembly and a fourth wax mold rod clamping assembly are respectively slidably provided on the third slide rail and the fourth slide rail, and the second variable pitch driving component comprises a third push-pull cylinder and a fourth push-pull cylinder installed on the upper and lower sides of the rear mounting plate, the telescopic end of the third push-pull cylinder is connected to the third wax mold rod clamping assembly through a third connecting block, and is used to push the third wax mold rod clamping assembly to reciprocate along the length direction of the third slide rail, and the telescopic end of the fourth push-pull cylinder is connected to the fourth wax mold rod clamping assembly through a fourth connecting block, and is used to push the fourth wax mold rod clamping assembly to reciprocate along the length direction of the fourth slide rail, so that the distance between the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly can be adjusted.

[0017] Preferably, the first wax mold rod clamping assembly, the second wax mold rod clamping assembly, the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are all of the same structure.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The shell-making variable-pitch four-claw tooling described in the utility model cooperates with an existing manipulator to transfer the wax mold blank on the shell-making suspension line to the shell-making manipulator and to transfer the wax mold finished product on the shell manipulator to the shell-making suspension line. The first wax mold rod clamping assembly and the second wax mold rod clamping assembly are arranged in pairs, and the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are arranged in pairs. The spacing between each pair of wax mold rod clamping assemblies can be adjusted as needed. This is suitable for situations where the working spacing between the shell-making manipulator and the shell-making suspension line does not match.

[0020] The shell-making variable-pitch four-claw tooling of the utility model solves the problem that the fixed wax mold rod clamping assembly cannot change its pitch, and the use of the variable-pitch wax mold rod clamping assembly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0022] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 3 is a structural schematic diagram of the first wax mold rod clamping assembly;

[0025] In the figure: 1, supporting beam 2, front mounting plate 3, rear mounting plate 4, first slide rail 5, second slide rail 6, first wax mold rod clamping assembly 6.1, clamping cylinder 6.2, clamping head 7, second wax mold rod clamping assembly 8, first push-pull cylinder 9, second push-pull cylinder 10, first stroke limit block 11, hook body A 12, hook body B 13, hanging groove A 14, hanging groove B 15, limit plate 16, connecting block 17, wax mold rod 18, tooling reserved interface. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings: The utility model is further illustrated below through specific embodiments, but is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the protection scope of the utility model.

[0027] Embodiment 1, as Figure 1-2As shown, the four-claw tooling for shell making with variable pitch comprises a supporting beam 1 and a wax mold rod clamping assembly A and a wax mold rod clamping assembly B symmetrically distributed at both ends of the supporting beam 1, the wax mold rod clamping assembly A comprises a front mounting plate 2 fixedly connected to the supporting beam 1, the first wax mold rod clamping assembly 6 and the second wax mold rod clamping assembly 7 and a first variable pitch driving component for adjusting the distance between the first wax mold rod clamping assembly 6 and the second wax mold rod clamping assembly 7 are installed on the front mounting plate 2, the wax mold rod clamping assembly B comprises a rear mounting plate 3 fixedly connected to the supporting beam 1, the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly and a second variable pitch driving component for adjusting the distance between the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are installed on the rear mounting plate 3.

[0028] It is used in the field of investment casting, specifically for the transfer of shell molds for shell making. It is installed on the KUKA six-axis manipulator and is used to transfer the shell molds on the DJXS-4P Dongsheng Foundry shell making robot (the distance between adjacent shell molds is 500mm) to the shell making suspension line (the distance between adjacent shell molds is 600mm).

[0029] This tooling is used in conjunction with the existing robot to transfer the wax mold blanks on the shell making suspension line to the shell making robot and to transfer the wax mold finished products on the shell robot to the shell making suspension line. The first wax mold rod clamping assembly 6 and the second wax mold rod clamping assembly 7 are arranged in pairs, and the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are arranged in pairs. The spacing between each pair of wax mold rod clamping assemblies can be adjusted as needed, which is suitable for situations where the working spacing between the shell making robot and the shell making suspension line does not match.

[0030] The problem that the fixed wax mold rod clamping assembly cannot change its pitch is solved, and the use of a variable pitch wax mold rod clamping assembly improves work efficiency.

[0031] In actual application, a tooling reserved interface 18 connected to a KUKA six-axis manipulator is provided in the middle of the support beam 1 , and the KUKA six-axis manipulator can drive the support beam to reciprocate 180 degrees.

[0032] Alternatively, a slewing mechanism is installed on the upper surface of the middle part of the supporting beam 1, and the slewing mechanism is connected to the execution end of the manipulator. The slewing mechanism can be a rotary cylinder or a gear slewing drive or a worm gear slewing drive, and can have a 180-degree reciprocating rotation function.

[0033] Embodiment 2, as Figure 1-2As shown, the four-claw tooling for shell making with variable pitch comprises a supporting beam 1 and a wax mold rod clamping assembly A and a wax mold rod clamping assembly B symmetrically distributed at both ends of the supporting beam 1, the wax mold rod clamping assembly A comprises a front mounting plate 2 fixedly connected to the supporting beam 1, the first wax mold rod clamping assembly 6 and the second wax mold rod clamping assembly 7 and a first variable pitch driving component for adjusting the distance between the first wax mold rod clamping assembly 6 and the second wax mold rod clamping assembly 7 are installed on the front mounting plate 2, the wax mold rod clamping assembly B comprises a rear mounting plate 3 fixedly connected to the supporting beam 1, the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly and a second variable pitch driving component for adjusting the distance between the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are installed on the rear mounting plate 3.

[0034] Furthermore, a first horizontal slide rail 4 and a second horizontal slide rail 5 are respectively provided at both ends of the outer side surface of the front mounting plate 2, and a first wax mold rod clamping assembly 6 and a second wax mold rod clamping assembly 7 are respectively slidably installed on the first slide rail 4 and the second slide rail 5, and the first variable pitch driving component includes a first push-pull cylinder 8 and a second push-pull cylinder 9 installed on the upper and lower sides of the front mounting plate 2, and the telescopic end of the first push-pull cylinder 8 is connected to the first wax mold rod clamping assembly 6 through a first connecting block, which is used to push the first wax mold rod clamping assembly 6 to reciprocate along the length direction of the first slide rail 4, and the telescopic end of the second push-pull cylinder 9 is connected to the second wax mold rod clamping assembly 7 through a second connecting block, which is used to push the second wax mold rod clamping assembly 7 to reciprocate along the length direction of the second slide rail 5, so that the distance between the first wax mold rod clamping assembly 6 and the second wax mold rod clamping assembly 7 can be adjusted.

[0035] Furthermore, the first wax mold rod clamping assembly 6 includes a first slider slidably matched with the first slide rail 4, a push-pull mechanism fixed on the surface of the first slider, a clamping hook is installed on the front end surface of the push-pull mechanism, and a clamping head matched with the clamping hook is provided at the telescopic end of the push-pull mechanism, and the clamping hook and the clamping head cooperate to clamp the wax mold rod.

[0036] Furthermore, the push-pull mechanism is a clamping cylinder 6.1, and the clamping cylinder 6.1 is a thin cylinder, and the front and rear end surfaces are both flat.

[0037] Further, refer to Figure 3 The clamping hook includes a hook body A11 and a hook body B12 which are parallel to each other. One end of the hook body A11 and the hook body B12 are fixed on the front end surface of the clamping cylinder 6.1 and are located on both sides of the telescopic rod of the clamping cylinder 6.1. The end of the hook body A11 away from the clamping cylinder 6.1 has a hanging groove A13, and the end of the hook body B12 away from the clamping cylinder 6.1 has a hanging groove B14. When the telescopic rod is extended, the clamping head abuts against the outer wall of the wax mold rod 17.

[0038] Furthermore, a V-shaped groove cooperating with the outer wall of the wax mold rod 17 is provided at one end of the clamping head away from the clamping cylinder 6.1, and a connecting block 16 is integrally formed between the hook body A11 and the hook body B12. The connecting block 16 is provided with a slide groove A which slidably cooperates with the clamping head 6.2, and also includes a limit plate A15. The two ends of the limit plate A15 are respectively fixed at the middle position of the upper surface of the hook body A11 and the hook body B12, and the lower surface of the limit plate A15 cooperates with the upper surface of the clamping head 6.2 with a small gap.

[0039] Furthermore, a first stroke limit block 10 and a second stroke limit block are respectively provided on both sides of the first wax mold rod clamping assembly 6 , and the first stroke limit block 10 and the second stroke limit block are both fixed on the front mounting plate 2 .

[0040] Furthermore, the second wax mold rod clamping assembly 7 and the first wax mold rod clamping assembly 6 have the same structure.

[0041] Furthermore, the wax model rod clamping assembly A and the wax model rod clamping assembly B have the same structure.

[0042] Furthermore, a third horizontal slide rail and a fourth horizontal slide rail are respectively provided at both ends of the outer side surface of the rear mounting plate 3, and a third wax mold rod clamping assembly and a fourth wax mold rod clamping assembly are respectively slidably provided on the third slide rail and the fourth slide rail, and the second variable pitch driving component includes a third push-pull cylinder and a fourth push-pull cylinder installed on the upper and lower sides of the rear mounting plate 3, and the telescopic end of the third push-pull cylinder is connected to the third wax mold rod clamping assembly through a third connecting block, which is used to push the third wax mold rod clamping assembly to reciprocate along the length direction of the third slide rail, and the telescopic end of the fourth push-pull cylinder is connected to the fourth wax mold rod clamping assembly through a fourth connecting block, which is used to push the fourth wax mold rod clamping assembly to reciprocate along the length direction of the fourth slide rail, so that the distance between the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly can be adjusted.

[0043] Furthermore, the first wax mold rod clamping assembly 6, the second wax mold rod clamping assembly 7, the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are all of the same structure.

[0044] Currently, the DJXS-4P Dongsheng Casting Industry shell-making robot is mostly used in manual shell-making processes and is less used in automatic shell-making. In addition, the shell-making tooling mostly uses fixed hydraulic / pneumatic fixed grippers without automatic variable-distance grippers.

[0045] The shell-making variable-pitch four-claw tooling described in the utility model cooperates with an existing manipulator to transfer the wax mold blank on the shell-making suspension line to the shell-making manipulator and to transfer the wax mold finished product on the shell manipulator to the shell-making suspension line. The first wax mold rod clamping assembly and the second wax mold rod clamping assembly are arranged in pairs, and the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are arranged in pairs. The spacing between each pair of wax mold rod clamping assemblies can be adjusted as needed. This is suitable for situations where the working spacing between the shell-making manipulator and the shell-making suspension line does not match.

[0046] The shell-making variable-pitch four-claw tooling of the utility model solves the problem that the fixed wax mold rod clamping assembly cannot change its pitch, and the use of the variable-pitch wax mold rod clamping assembly improves work efficiency.

[0047] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the present utility model is defined by the attached claims and their equivalents.

[0048] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A variable pitch four-claw tool for shell making, characterized in that: It includes a supporting crossbeam and a wax mold rod clamping assembly A and a wax mold rod clamping assembly B symmetrically distributed at both ends of the supporting crossbeam. The wax mold rod clamping assembly A includes a front mounting plate fixedly connected to the supporting crossbeam, on which the first wax mold rod clamping assembly and the second wax mold rod clamping assembly are mounted, as well as a first variable pitch driving component for adjusting the distance between the first wax mold rod clamping assembly and the second wax mold rod clamping assembly. The wax mold rod clamping assembly B includes a rear mounting plate fixedly connected to the supporting crossbeam, on which the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly are mounted, as well as a second variable pitch driving component for adjusting the distance between the third wax mold rod clamping assembly and the fourth wax mold rod clamping assembly.

2. The shell-making variable-pitch four-claw tooling according to claim 1, characterized in that: A first horizontal slide rail and a second horizontal slide rail are respectively provided at both ends of the outer side surface of the front mounting plate, and a first wax mold rod clamping assembly and a second wax mold rod clamping assembly are respectively slidably mounted on the first slide rail and the second slide rail, and the first variable pitch driving component includes a first push-pull cylinder and a second push-pull cylinder installed on the upper and lower sides of the front mounting plate, the telescopic end of the first push-pull cylinder is connected to the first wax mold rod clamping assembly through a first connecting block, and is used to push the first wax mold rod clamping assembly to reciprocate along the length direction of the first slide rail, and the telescopic end of the second push-pull cylinder is connected to the second wax mold rod clamping assembly through a second connecting block, and is used to push the second wax mold rod clamping assembly to reciprocate along the length direction of the second slide rail, so that the distance between the first wax mold rod clamping assembly and the second wax mold rod clamping assembly can be adjusted.

3. The shell-making variable-pitch four-claw tooling according to claim 2 is characterized in that: The first wax mold rod clamping assembly includes a first slider slidingly matched with the first slide rail, and a push-pull mechanism fixed on the surface of the first slider. A clamping hook is installed on the front end surface of the push-pull mechanism. The telescopic end of the push-pull mechanism is provided with a clamping head matching with the clamping hook. The clamping hook and the clamping head cooperate to clamp the wax mold rod.

4. The shell-making variable-pitch four-claw tooling according to claim 3 is characterized in that: The push-pull mechanism is a clamping oil cylinder, which is a thin oil cylinder with flat front and rear end surfaces.

5. The shell-making variable-pitch four-claw tooling according to claim 4, characterized in that: A first stroke limit block and a second stroke limit block are respectively arranged on both sides of the first wax mold rod clamping assembly, and the first stroke limit block and the second stroke limit block are both fixed on the front mounting plate.

6. The shell-making variable-pitch four-claw tooling according to claim 5, characterized in that: The second wax mold rod clamping assembly has the same structure as the first wax mold rod clamping assembly.

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