CN215903018U

CN215903018U - Automatic disassembling mechanism for test fixture

Info

Publication number: CN215903018U
Application number: CN202023124208.4U
Authority: CN
Inventors: 顾蔚
Original assignee: TUV RHEINLAND (SHANGHAI)CO Ltd
Current assignee: TUV RHEINLAND (SHANGHAI)CO Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2022-02-25
Anticipated expiration: 2030-12-22

Abstract

The utility model relates to an automatic test fixture dismounting mechanism which comprises a fixed frame, a plurality of supporting rods, a robot switching disc, a lateral pushing assembly, a plurality of ejecting assemblies and a plurality of hook units, wherein the supporting rods are vertically arranged below the fixed frame, the robot switching disc is arranged above the fixed frame, the lateral pushing assembly is connected to the fixed frame, the ejecting assemblies are connected to the lateral pushing assembly and can be pressed against a conical nut in a test pipe fitting to enable the conical nut to be separated from the test pipe fitting, the hook units are connected to the lateral pushing assembly, and the hook units are driven by the lateral pushing assembly to horizontally displace and hook on the upper part of the test fixture. Compared with the prior art, the automatic test fixture disassembling mechanism can be matched with a full-automatic disassembling process, so that large-batch, high-precision and automatic detection fixture disassembling and part blanking are realized.

Description

Automatic disassembling mechanism for test fixture

Technical Field

The utility model relates to a disassembling mechanism, in particular to an automatic disassembling mechanism for a test fixture.

Background

In the field of current industrial part detection, a part to be detected needs to be loaded into a detection tool, then the detection tool is placed on a corresponding position of a detection platform, the feeding process is completed, then the locking of the detection tool and the part to be detected is realized through a locking mechanism, after the detection process is completed, the detection tool and the part to be detected are wholly taken down by the detection platform and placed in a storage area, and the discharging process is completed.

In the mechanical property test process of pipe fitting parts, the current material loading and unloading process is the manual operation process, the detection tool and the part to be tested are both made of metal materials, the weight is large, meanwhile, in the unloading process, a bolt fixed on the pipe fitting needs to be unscrewed at first, then, a conical nut which is arranged in the pipe fitting part and is matched with the bolt needs to be taken out manually, and then, the separation of the upper part 7 of the test tool and the lower part 12 of the test tool can be realized, so that the disassembly process of the test tool is realized. However, when more than one hundred parts to be tested are required, the manual operation cannot be realized, and the test accuracy cannot be ensured.

Therefore, how to realize the disassembly of the detection tool and the part blanking with large batch, high precision and automation is a technical problem which needs to be solved urgently in the field of industrial part detection.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide the automatic test fixture disassembling mechanism, and the automatic test fixture disassembling mechanism can be matched with a full-automatic disassembling process by designing the automatic test fixture disassembling mechanism, so that the large-batch high-precision automatic detection fixture disassembling and part blanking are realized.

The purpose of the utility model can be realized by the following technical scheme:

the automatic disassembling mechanism of the test fixture comprises a fixed frame, a plurality of supporting rods, a robot switching disc, a lateral pushing assembly, a plurality of ejecting assemblies and a plurality of hook units, wherein the automatic disassembling mechanism specifically comprises:

the plurality of support rods are vertically arranged below the fixing frame, and the support rods stand on the detection platform to support the fixing frame;

the robot switching disc is arranged above the fixing frame to realize quick connection with the industrial robot;

the lateral pushing assembly is connected to the fixed frame;

the plurality of ejection assemblies are connected to the lateral pushing assembly and can be pressed against the conical nut in the test pipe fitting, so that the conical nut is separated from the test pipe fitting;

and the plurality of hook units are connected to the lateral pushing assembly, and after the conical nuts are separated from the test pipe fitting, the hook units horizontally displace under the driving of the lateral pushing assembly and hook the upper part of the test tool.

Further, the ejection assembly comprises an ejection assembly body, a transmission rod and a lower pressing rod;

the transmission rod penetrates through the ejection assembly body and is in threaded connection with the lower pressing rod;

the lower end of the lower pressure rod can be pressed against the conical nut on the inner wall of the test pipe fitting.

Furthermore, a hollow area is formed in the top of the fixing frame.

Further, the tool disassembling and screwing gun can pass through the hollow area from top to bottom and is connected with the upper end of the transfer rod.

The torsional force output by the tool disassembling and tightening gun is converted into an axial driving force to be pressed against the conical nut on the inner wall of the test pipe fitting.

Furthermore, a thrust bearing is arranged between the ejection assembly main body and the upper end of the transmission rod, an outer ring of the thrust bearing is connected with the ejection assembly main body, and an inner ring of the thrust bearing is connected with the upper end of the transmission rod.

Further, an annular flange is arranged at the upper end of the transmission rod, and the flange is coated in the ejection assembly main body.

Therefore, the transmission rod is limited in the ejection component main body and only has axial rotational freedom.

Furthermore, a positioning pin is arranged below the supporting rod and matched with a guide hole formed in the detection tool.

Furthermore, an output rod of the lateral pushing assembly is connected with the fixed frame, and a body of the lateral pushing assembly is connected with the ejection assembly and the hook unit.

Furthermore, a connecting plate is arranged on the body of the lateral pushing assembly, and the plurality of ejection assemblies and the hook units are connected to the connecting plate.

Further, the lateral pushing assemblies are symmetrically arranged in 2, the hook units on the lateral pushing assemblies are correspondingly arranged in two rows, clamping actions from two sides to the middle are achieved, lateral clamping is achieved while hooking on the upper portion of the test fixture through the hook units, the automatic disassembling mechanism of the test fixture can be tightly combined with the hook on the upper portion of the test fixture, then the upper portion of the test fixture is vertically supported through a mechanical arm of an industrial robot, the upper portion of the test fixture is separated from the lower portion of the test fixture, and accordingly the disassembling process of the test fixture is achieved.

Further, the lateral pushing assemblies are all servo air cylinders or servo electric cylinders.

Compared with the prior art, the utility model has the following technical advantages:

1) the automatic test fixture disassembling mechanism in the technical scheme can be matched with a full-automatic disassembling process, so that large-batch, high-precision and automatic detection fixture disassembling and part blanking are realized.

2) According to the technical scheme, the automatic disassembling mechanism of the test fixture realizes automatic disassembly of the taper nut, and meanwhile is highly adaptively matched with the upper tool, so that the upper tool is vertically supported, the upper part of the test fixture is separated from the lower part of the test fixture, the disassembling process of the test fixture is realized, manual participation is avoided, and the disassembling efficiency is remarkably improved.

3) The automatic disassembling mechanism of the test fixture can be tightly combined with the butt hook on the upper part of the test fixture, so that the upper fixture is vertically and stably supported.

4) Compared with the manual disassembly of the upper tool, the efficiency is improved, the part subjected to testing is prevented from being subjected to destructive operations such as manual disassembly and hammering, the whole damaged part in the tested part is ensured to be generated in the fatigue testing process, and the rigidness of testing data is improved.

Drawings

FIG. 1 is a schematic structural view of an automatic test fixture detachment mechanism according to the present invention;

FIG. 2 is a schematic structural view of the ejection assembly of the present invention;

FIG. 3 is a schematic view of the working structure of the tool disassembling and tightening gun of the present invention;

FIG. 4 is a schematic view showing the arrangement position of the automatic test fixture detachment mechanism according to the present invention.

FIG. 5 is an assembly view of the test fixture of the present invention.

In the figure: 1. the robot switching plate, 2, a fixing frame, 3, an ejection assembly, 4, a lateral pushing assembly, 5, a hook unit, 6, a fixing frame, 7, an upper part of a testing tool, 8, a positioning pin, 9, a tool disassembling and screwing gun, 10, a testing pipe fitting, 11, a conical nut, 12, a lower part of the testing tool, 21, a hollow-out area, 31, an ejection assembly main body, 32, a transmission rod, 33, a lower pressing rod, 34 and an annular flange.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments.

Example 1

The automatic test fixture dismounting mechanism in this embodiment includes a fixed frame 2, a plurality of support rods 6, a robot switching plate 1, a lateral pushing assembly 4, a plurality of ejecting assemblies 3, and a plurality of hooking units 5, see fig. 1.

A plurality of bracing pieces 6 are perpendicularly arranged below the fixing frame 2, the bracing pieces 6 stand on the detection platform to realize the support of the fixing frame 2, a positioning pin 8 is arranged below the bracing pieces 6, and the positioning pin 8 is matched with a guide hole arranged on the detection tool.

The top of mount 2 has been seted up hollow area 21, and frock is disassembled and is screwed up rifle 9 and can be passed through from top to bottom hollow area 21 is connected with the upper end of transfer bar 32.

The robot switching disc 1 is arranged above the fixing frame 2, and quick connection with an industrial robot is achieved.

The lateral pushing assembly 4 is connected to the fixed frame 2, an output rod of the lateral pushing assembly 4 is connected to the fixed frame 2, and a body of the lateral pushing assembly 4 is connected to the ejection assembly 3 and the hook unit 5. The body of the lateral pushing component 4 is provided with a connecting plate, and the plurality of ejection components 3 and the hook units 5 are connected to the connecting plate. The lateral pushing assemblies 4 are all servo air cylinders or servo electric cylinders.

The plurality of ejection assemblies 3 are connected to the lateral pushing assembly 4 and can press against the cone nut 11 inside the test tube 10, so that the cone nut 11 is separated from the test tube 10. The ejection assembly 3 includes an ejection assembly body 31, a transmission rod 32, and a lower pressing rod 35, the transmission rod 32 penetrates through the ejection assembly body 31 and is screwed with the lower pressing rod 35, and the lower end of the lower pressing rod 35 can be pressed against the cone nut on the inner wall of the test pipe, see fig. 3 and 4.

And the plurality of hook units 5 are connected to the lateral pushing assembly 4, and after the cone nuts 11 are separated from the test pipe fittings 10, the hook units 5 are driven by the lateral pushing assembly 4 to horizontally displace and hook on the upper part 7 of the test tool.

The torsional force output by the tool disassembling and tightening gun 9 is converted into an axial driving force to be pressed against the conical nut on the inner wall of the test pipe fitting. A thrust bearing 33 is arranged between the upper ends of the ejection assembly main body 31 and the transmission rod 32, the outer ring of the thrust bearing 33 is connected with the ejection assembly main body 31, and the inner ring of the thrust bearing 33 is connected with the upper end of the transmission rod 32. The upper end of the transfer rod 32 is provided with an annular flange 34, and the flange 34 is covered in the ejection assembly body 31. Therefore, the transmission rod 32 is limited in the ejection assembly main body 31 and only has axial rotation freedom. In a specific embodiment, the lower pressing rod 35 is provided with an internal thread, and the lower end of the transfer rod 32 is provided with an external thread, as shown in fig. 2.

During specific implementation, the frock is disassembled and is screwed up rifle 9 and can pass through from top to bottom the fretwork is regional 21, earlier through the dismantlement of torque output realization bolt on the pipe fitting, later the frock is disassembled and is screwed up rifle 9 and passes through from top to bottom once more the fretwork is regional 21 and is connected with the upper end of transfer bar 32, and through the screw-thread fit between depression bar 35 and the transfer bar 32 down, the realization is disassembled the torsional force of screwing up rifle 9 output with the frock and is converted into axial driving force to this supports and presses on the cone nut of test pipe fitting inner wall. Lateral pushing assembly 4 symmetry sets up 2, couple unit 5 on it also corresponds and sets up two rows to this realization is by both sides to centre gripping action, carry out the side direction centre gripping when realizing hooking on test fixture upper portion 7 through couple unit 5, make this test fixture automatic disassembly body can fasten with hooking in test fixture upper portion 7 combination, later realize holding up test fixture upper portion 7 vertically through industrial robot's arm, realize test fixture upper portion 7 and test fixture lower part 12 separation with this, realize test fixture's dismantlement flow with this.

The embodiments described above are intended to facilitate the understanding and use of the utility model by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. The utility model provides an automatic disassembly body of test fixture which characterized in that includes:

a fixing frame (2):

the supporting rods (6) are vertically arranged below the fixing frame (2), and the supporting rods (6) stand on the detection platform to support the fixing frame (2);

the robot switching disc (1) is arranged above the fixing frame (2) and is quickly connected with the industrial robot;

the lateral pushing assembly (4) is connected to the fixed frame (2);

the ejection assemblies (3) are connected to the lateral pushing assembly (4) and can be pressed against the conical nuts (11) in the test pipe fittings (10) so that the conical nuts (11) are separated from the test pipe fittings (10);

and the plurality of hook units (5) are connected to the lateral pushing assembly (4), and after the conical nuts (11) are separated from the test pipe fittings (10), the hook units (5) are driven by the lateral pushing assembly (4) to horizontally displace and hook on the upper part (7) of the test tool.

2. The automatic test fixture dismounting mechanism according to claim 1, wherein the ejector assembly (3) comprises an ejector assembly body (31), a transmission rod (32) and a lower pressing rod (35);

the transmission rod (32) penetrates through the ejection assembly main body (31) and is in threaded connection with the lower pressing rod (35);

the lower end of the lower pressure rod (35) can be pressed against the conical nut on the inner wall of the test pipe fitting.

3. The automatic test fixture dismounting mechanism according to claim 2, wherein a hollowed-out area (21) is formed at the top of the fixing frame (2).

4. The automatic test fixture dismounting mechanism as claimed in claim 3, wherein the tool dismounting and tightening gun (9) can pass through the hollow area (21) from top to bottom and is connected with the upper end of the transfer rod (32).

5. The automatic test fixture dismounting mechanism according to claim 3, wherein a thrust bearing (33) is arranged between the ejector assembly main body (31) and the upper end of the transmission rod (32), the outer ring of the thrust bearing (33) is connected with the ejector assembly main body (31), and the inner ring of the thrust bearing (33) is connected with the upper end of the transmission rod (32).

6. The automatic test fixture disassembly mechanism of claim 3, wherein the upper end of the transmission rod (32) is provided with an annular flange (34), and the flange (34) is wrapped in the ejection assembly body (31).

7. The automatic disassembling mechanism of the test fixture according to claim 1, characterized in that a positioning pin (8) is arranged below the supporting rod (6), and the positioning pin (8) is matched with a guiding hole arranged on the detection tool.

8. The automatic test fixture dismounting mechanism according to claim 1, characterized in that the output rod of the lateral pushing assembly (4) is connected with the fixed frame (2), and the body of the lateral pushing assembly (4) is connected with the ejecting assembly (3) and the hooking unit (5).

9. The automatic test fixture dismounting mechanism according to claim 8, wherein the body of the lateral pushing assembly (4) is provided with a connecting plate, and the plurality of ejecting assemblies (3) and the hooking units (5) are connected to the connecting plate.

10. The automatic test fixture dismounting mechanism according to claim 1, wherein the lateral pushing assemblies (4) are all servo air cylinders or servo electric cylinders.