Connecting clamp
By designing a connecting fixture with elastic parts, the damage caused by rigid abutment between the connecting fixture and the test opening and closing parts in the prior art is solved, and efficient test operation and wide applicability are achieved.
Patent Information
- Application Number
- CN202422236657.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The rigid abutment between the existing connecting fixtures and the test opening and closing parts leads to collisions, friction damage, low efficiency, insufficient applicability and versatility.
A connecting fixture including a base, a guide body, a push-pull member and an elastic member is designed, and the push-pull member is driven to close or open the test opening and closing member through the elastic force of the elastic member to achieve flexible abutment.
It improves the test efficiency, avoids damage between the push-pull and test opening and closing parts, enhances the applicability and versatility of the connecting fixture, and can be suitable for a variety of different types of test opening and closing parts.
Smart Images
Figure CN223005716U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of durability tests of vehicle body opening and closing parts, in particular to a connecting fixture. Background Art
[0002] In order to verify whether the opening and closing parts (such as vehicle doors) of a vehicle body meet the requirements of the whole vehicle service life, it is necessary to conduct a service life test of opening and closing the test opening and closing parts. Among them, a connecting fixture is provided between the robotic arm and the test opening and closing part, so as to transmit the movement of the robotic arm to the test opening and closing part through the connecting fixture, so as to conduct an opening or closing test on the test opening and closing part.
[0003] However, since the current connecting fixture is in rigid contact with the test opening and closing part, it is easy to cause the connecting fixture to collide and rub against the test opening and closing part and be damaged, and the robotic arm and the test opening and closing part to collide and rub against each other and be damaged, resulting in low test efficiency; at the same time, due to the rigid contact, the connecting fixture can only be abutted against the test opening and closing part with a single surface structure, so that the applicability and versatility of the entire connecting fixture are low.
[0004] In view of the above problems, a connecting fixture is urgently needed to solve the above problems. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a connecting fixture, which can ensure high test efficiency, and the connecting fixture can be applied to a variety of different types of test opening and closing parts, ensuring high applicability and versatility of the connecting fixture.
[0006] To achieve the above object, the utility model adopts the following technical solutions:
[0007] A connecting fixture is arranged between a robotic arm and a test opening and closing part, and includes:
[0008] A base is connected to the robotic arm, and a guiding body is arranged at the middle position of the base;
[0009] A push-pull member is movably inserted through the guiding body;
[0010] An elastic member is sleeved on the push-pull member, and the elastic member is limited between the guiding body and the end of the push-pull member;
[0011] Wherein, when the robotic arm drives the base to move in a first direction, the guiding body can act on the elastic member, so that the elastic member drives the push-pull member to close the test opening and closing part along the first direction; when the robotic arm drives the base to move in a second direction, the guiding body can act on the elastic member, so that the elastic member drives the push-pull member to open the test opening and closing part along the second direction, and the second direction is opposite to the first direction.
[0012] As an alternative, the elastic member includes:
[0013] A first elastic member sleeved on the push-pull member and limited between the front end of the push-pull member and the front side of the guide body. When the robotic arm drives the base to move along the first direction, the guide body can compress the first elastic member so that the first elastic member pushes the push-pull member to close the test opening and closing member along the first direction;
[0014] A second elastic member sleeved on the push-pull member and limited between the rear end of the push-pull member and the rear side of the guide body. When the robotic arm drives the base to move along the second direction, the guide body can compress the second elastic member so that the second elastic member pushes the push-pull member to open the test opening and closing member along the second direction.
[0015] As an alternative, the elastic parameter of the first elastic member is the same as or different from that of the second elastic member.
[0016] As an alternative, at least two push-pull members are provided, and the push-pull members are arranged side by side and at intervals.
[0017] As an alternative, the push-pull member includes:
[0018] A cylindrical rod, with a first limiting member connected to the rear end of the cylindrical rod, and the second elastic member is limited between the first limiting member and the guide body;
[0019] An L-shaped push-pull rod, including a long rod and a short rod connected perpendicularly. The front end of the cylindrical rod extends outside the base and is connected to the long rod, and the short rod is used to contact the test opening and closing member.
[0020] As an alternative, a buffer member is provided on the short rod, and the buffer member is used to contact the test opening and closing member.
[0021] As an alternative, the base includes:
[0022] A bottom plate, and the guide body is arranged at the middle position of the bottom plate;
[0023] A vertical plate perpendicularly connected to one end of the bottom plate. A second limiting member is provided on the side of the vertical plate facing the push-pull member. There is a gap between the second limiting member and the first limiting member, and when the robotic arm drives the base to move along the first direction, the second limiting member can abut against the first limiting member so that the base pushes the push-pull member to close the test opening and closing member along the first direction.
[0024] As an alternative, the connection fixture further includes:
[0025] A guide member is located on the front side of the guide body and is connected to the cylindrical rod. The guide member can move on the bottom plate in the first direction or the second direction.
[0026] As an alternative, the guide member includes:
[0027] A first connecting plate is sleeved on the push-pull member, and the first elastic member is limited between the guide body and the first connecting plate;
[0028] A second connecting plate is vertically connected to one side of the first connecting plate. The second connecting plate is parallel to and spaced from the bottom plate;
[0029] Rollers. A plurality of the rollers are connected to the bottom end of the second connecting plate, and the rollers are in rolling contact with the bottom plate.
[0030] As an alternative, a guide hole is provided in the guide body, and a linear bearing is installed in the guide hole. The push-pull member passes through the inner ring of the linear bearing.
[0031] The beneficial effects of the present utility model are as follows:
[0032] By providing a guide body at the middle position of the base, the push-pull member is movably passed through the guide body, and an elastic member is sleeved on the push-pull member, so that the elastic member is limited between the end of the push-pull member and the guide body; when the robotic arm drives the base to move in the first direction, the base drives the guide body to move in the first direction. At this time, since the guide body will not drive the push-pull member to move integrally in the first direction, but the guide body can act on the elastic member during the movement, so as to drive the push-pull member to close the test opening and closing member in the first direction through the elastic force of the elastic member; when the robotic arm drives the base to move in the second direction, the base drives the guide body to move in the second direction. At this time, since the guide body will not drive the push-pull member to move integrally in the second direction, but the guide body can act on the elastic member during the movement, so as to drive the push-pull member to open the test opening and closing member in the second direction through the elastic force of the elastic member, so as to transfer the movement of the robotic arm to the test opening and closing member through the connecting fixture, and realize the closing and opening tests of the test opening and closing member.
[0033] The above-mentioned elastic force of the elastic member drives the push-pull member to close or open the test opening and closing member, so that the push-pull member and the test opening and closing member are in flexible contact. Compared with the rigid contact between the push-pull member and the test opening and closing member in the prior art, it can avoid the damage caused by the collision and friction of the push-pull member to the test opening and closing member, so as to ensure a high test efficiency; and, since the push-pull member can provide a buffering elastic effect between the robotic arm and the test opening and closing member, it can avoid the damage caused by the collision and friction between the robotic arm and the test opening and closing member, further ensuring a high test efficiency; at the same time, since the push-pull member can have an independent telescopic adjustment function under the action of the elastic member, the push-pull member can be abutted against the test opening and closing members with various different surface structures, so that the connecting fixture can be applicable to various different types of test opening and closing members, thereby making the applicability and versatility of the entire connecting fixture relatively high. Description of the Drawings
[0034] Figure 1 It is a schematic structural diagram of the connecting fixture provided by the present utility model.
[0035] Description of the Reference Numerals:
[0036] 1 - Base; 11 - Bottom Plate; 12 - Vertical Plate;
[0037] 2 - Push-Pull Member; 21 - Cylindrical Rod; 22 - L-shaped Push-Rod; 221 - Long Rod; 222 - Short Rod;
[0038] 31 - First Elastic Member; 32 - Second Elastic Member;
[0039] 4 - Guide Member; 41 - First Connecting Plate; 42 - Second Connecting Plate; 43 - Roller;
[0040] 5 - Guide Body; 6 - First Limiting Member; 7 - Second Limiting Member. Detailed Embodiment
[0041] All the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.
[0042] Any feature disclosed in this specification, unless specifically described, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically described, each feature is only an example of a series of equivalent or similar features. Throughout the specification, the same reference numerals indicate the same elements.
[0043] To make the technical problems solved by the present utility model, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the present utility model will be further described below with reference to the drawings and through specific embodiments.
[0044] In this embodiment, a connecting fixture is proposed, which is arranged between the robotic arm and the test opening and closing member, so as to transfer the movement of the robotic arm to the test opening and closing member through the connecting fixture, and perform the opening and closing tests on the test opening and closing member; the connecting fixture can ensure high test efficiency, and can make the applicability and versatility of the entire connecting fixture relatively high, and can ensure that the force on the test opening and closing member is relatively uniform. Among them, the robotic arm can specifically adopt the robotic arm structure in the prior art, and the test opening and closing member is specifically a door test piece.
[0045] Specifically, as Figure 1 shown, the connecting fixture includes a base 1, a push-pull member 2 and an elastic member; wherein, the base 1 is connected to the robotic arm to drive the base 1 to move through the robotic arm; and a guide body 5 is arranged at the middle position of the base 1, and the push-pull member 2 is movably inserted through the guide body 5, that is, the push-pull member 2 can move linearly relative to the guide body 5, so as to provide a guiding effect on the movement of the push-pull member 2 through the guide body 5 and ensure the guiding property and stability of the movement of the push-pull member 2; the elastic member is sleeved on the push-pull member 2, and the elastic member is limited and connected between the guide body 5 and the end of the push-pull member 2.
[0046] Specifically, when the robotic arm drives the base 1 to move in the first direction, the guide body 5 can act on the elastic member to drive the push-pull member 2 to close the test opening and closing member in the first direction; when the robotic arm drives the base 1 to move in the second direction, the guide body 5 can act on the elastic member to drive the push-pull member 2 to open the test opening and closing member in the second direction. Among them, the second direction is opposite to the first direction, and the first direction is specifically as Figure 1 shown by the arrow A in Figure 1 and the second direction is specifically as
[0047] In the connection fixture of this embodiment, compared with the prior art, an elastic member is added to the push-pull member 2; by arranging a guide body 5 at the middle position of the base 1, the push-pull member 2 is movably inserted through the guide body 5, and an elastic member is sleeved on the push-pull member 2, so that the elastic member is limited between the end of the push-pull member 2 and the guide body 5; when the robotic arm drives the base 1 to move in the first direction, the base 1 drives the guide body 5 to move in the first direction. At this time, since the guide body 5 will not drive the push-pull member 2 to move integrally in the first direction, but the guide body 5 can act on the elastic member during the movement, so as to drive the push-pull member 2 to close the test opening and closing member in the first direction through the elastic force of the elastic member; when the robotic arm drives the base 1 to move in the second direction, the base 1 drives the guide body 5 to move in the second direction. At this time, since the guide body 5 will not drive the push-pull member 2 to move integrally in the second direction, but the guide body 5 can act on the elastic member during the movement, so as to drive the push-pull member 2 to open the test opening and closing member in the second direction through the elastic force of the elastic member, so as to transfer the movement of the robotic arm to the test opening and closing member through the connection fixture, and realize the closing and opening tests of the test opening and closing member.
[0048] The connection fixture in this embodiment changes the abutting manner of the push-pull member 2 against the test opening and closing member; the elastic force of the elastic member drives the push-pull member 2 to close or open the test opening and closing member, so that the push-pull member 2 and the test opening and closing member are in flexible abutment. Compared with the rigid abutment between the push-pull member 2 and the test opening and closing member in the prior art, it can avoid the damage caused by the collision and friction of the push-pull member 2 against the test opening and closing member, so as to ensure a relatively high test efficiency; moreover, since the push-pull member 2 can provide a buffer elastic effect between the robotic arm and the test opening and closing member, it can avoid the damage caused by the collision and friction between the robotic arm and the test opening and closing member, and further ensure a relatively high test efficiency; at the same time, since the push-pull member 2 can have an independent telescopic adjustment function under the action of the elastic member, the push-pull member 2 can abut against test opening and closing members with various different surface structures, so that the connection fixture can be applicable to various different types of test opening and closing members, thus making the applicability and versatility of the entire connection fixture relatively high.
[0049] Specifically, a guide hole is provided in the guide body 5, and a linear bearing is installed in the guide hole. That is, the outer ring of the linear bearing is fixedly connected in the guide hole, and the push-pull member 2 is inserted through the inner ring of the linear bearing, so that the push-pull member 2 can move relative to the guide body 5 in the first direction or the second direction.
[0050] Further, as Figure 1As shown, the elastic member includes a first elastic member 31 and a second elastic member 32. Among them, the first elastic member 31 is sleeved on the push-pull member 2 and is limited between the front end of the push-pull member 2 and the front side of the guide body 5. When the robotic arm drives the base 1 to move in the first direction, the guide body 5 can compress the first elastic member 31 so that the first elastic member 31 pushes the push-pull member 2 to close the test opening and closing member in the first direction. The second elastic member 32 is sleeved on the push-pull member 2 and is limited between the rear end of the push-pull member 2 and the rear side of the guide body 5. When the robotic arm drives the base 1 to move in the second direction, the guide body 5 can compress the second elastic member 32 so that the second elastic member 32 pushes the push-pull member 2 to open the test opening and closing member in the second direction.
[0051] It should be noted that when the robotic arm drives the base 1 to move in the first direction and the guide body 5 compresses the first elastic member 31, the guide body 5 can stretch the second elastic member 32 to pull the push-pull member 2 to move in the first direction through the second elastic member 32. That is to say, through the mutual cooperation of the push and pull of the first elastic member 31 and the second elastic member 32, the flexible pushing effect between the push-pull member 2 and the test opening and closing member can be better ensured.
[0052] Specifically, when the robotic arm drives the base 1 to move in the second direction and the guide body 5 compresses the second elastic member 32, the guide body 5 can stretch the first elastic member 31 to pull the push-pull member 2 to move in the second direction through the first elastic member 31. That is to say, through the mutual cooperation of the push and pull of the first elastic member 31 and the second elastic member 32, the flexible pulling effect between the push-pull member 2 and the test opening and closing member can be better ensured.
[0053] Furthermore, the elastic parameters of the first elastic member 31 and the second elastic member 32 may be the same or different. The elastic parameters of the first elastic member 31 and the second elastic member 32 can be determined according to the actual test conditions and are not specifically limited here. In this embodiment, both the first elastic member 31 and the second elastic member 32 are springs, and the elastic parameters of the first elastic member 31 and the second elastic member 32 are the same. The inner diameters of the first elastic member 31 and the second elastic member 32 are 16 mm and the lengths are 60 mm.
[0054] Specifically, as Figure 1 shown, there are at least two push-pull members 2, and the push-pull members 2 are arranged side by side and at intervals so that each push-pull member 2 can move independently. In this embodiment, there are four push-pull members 2 to simulate four fingers of a human hand.
[0055] By setting a plurality of mutually independent push-pull members 2, on the one hand, it can better simulate the actions of the fingers of a human hand to open or close the test opening and closing member, and can simulate the door opening and closing actions during actual user use, thereby ensuring a relatively high accuracy of the test results; on the other hand, it can make the push-pull members 2 abut against the test opening and closing member, so that multiple-point contact is achieved between the push-pull members 2 and the test opening and closing member, thereby ensuring that the force on the test opening and closing member is relatively uniform, not easily wearing the test opening and closing member, and further being able to better ensure a relatively high test efficiency and test accuracy; moreover, since each push-pull member 2 can have an independent telescopic adjustment function, each push-pull member 2 can abut against the test opening and closing member under the elastic force of the first elastic member 31 and the second elastic member 32, thereby ensuring that each push-pull member 2 can be respectively attached to the test opening and closing member, enabling each push-pull member 2 to abut against the uneven surface on the test opening and closing member, so that the connection fixture can be applicable to various test opening and closing members with complex structures, making the applicability and versatility of the entire connection fixture higher.
[0056] It should be noted that since each push-pull member 2 can have an independent telescopic adjustment function, therefore, each push-pull member 2 can automatically adjust the abutting position, abutting angle, and abutting strength with the test opening and closing member according to the movement trajectory, movement speed, and irregular force situation of the test opening and closing member during the test process, so that each push-pull member 2 can abut against the test opening and closing member in an arc shape, better simulating the door opening and closing actions during actual user use, thereby ensuring a higher test accuracy.
[0057] Furthermore, as Figure 1 shown, the push-pull member 2 includes a cylindrical rod 21 and an L-shaped push-pull rod 22; wherein, a first limiting member 6 is connected to the rear end of the cylindrical rod 21, and the second elastic member 32 is limited between the first limiting member 6 and the guiding body 5 to be able to provide a limiting effect on the second elastic member 32; the L-shaped push-pull rod 22 includes a long rod 221 and a short rod 222 that are perpendicularly connected. The front end of the cylindrical rod 21 extends out of the base 1 and is connected to the long rod 221, and the short rod 222 is used to contact the test opening and closing member. The short rod 222 can simulate the first and second joints of a fingertip, so as to better simulate the door opening and closing actions during actual user use, thereby ensuring a higher accuracy of the test results. Among them, the first elastic member 31 and the second elastic member 32 are respectively sleeved on the cylindrical rod 21, the first limiting member 6 is an annular limiting piece, and the guiding body 5 is a cuboid structure.
[0058] Specifically, a buffer member is provided on the short rod 222. The buffer member is used to contact the test opening and closing member, so as to make the flexible connection effect between the push-pull member 2 and the test opening and closing member better through the buffer member, making the buffer effect between the push-pull member 2 and the test opening and closing member better, and better reducing the damage caused by the collision of the push-pull member 2 to the test opening and closing member, ensuring a higher test efficiency. Among them, the buffer member is specifically rubber, and the rubber is coated on the short rod 222.
[0059] Specifically, as Figure 1 shown, the base 1 includes a bottom plate 11 and a vertical plate 12; wherein, the guiding body 5 is fixedly installed at the middle position of the bottom plate 11 by bolts; the vertical plate 12 is vertically connected to one end of the bottom plate 11 to form an L-shaped structure, and a second limiting member 7 is arranged on the side of the vertical plate 12 facing the pushing and pulling member 2. There is a gap between the second limiting member 7 and the first limiting member 6, and when the robotic arm drives the base 1 to move in the first direction, the second limiting member 7 can abut against the first limiting member 6, so that the base 1 pushes the entire pushing and pulling member 2 to close the test opening and closing member in the first direction. Wherein, the second limiting member 7 is specifically a limiting block.
[0060] When closing the test opening and closing member: First, the robotic arm drives the base 1 to move in the first direction, so that the guiding body 5 compresses the first elastic member 31 in the first direction, and the first elastic member 31 pushes the pushing and pulling member 2 in the first direction; at the same time, the guiding body 5 stretches the second elastic member 32 in the first direction to pull the pushing and pulling member 2 to move in the first direction through the second elastic member 32, so that the short rod 222 of the pushing and pulling member 2 moves in the first direction to abut against the test opening and closing member, so as to adjust the abutting position, abutting angle and abutting strength of the short rod 222 against the test opening and closing member through the elastic forces of the first elastic member 31 and the second elastic member 32, thereby ensuring that the short rod 222 is not easily damaged by collision with the test opening and closing member; at this time, there is still a gap between the first limiting member 6 and the second limiting member 7, so that the pushing and pulling member 2 is provided with a driving force by the first elastic member 31 and the second elastic member 32 at this time.
[0061] Since the pushing force required to close the test opening and closing member is relatively large, therefore, during the movement in the first direction, the base 1 can move in the first direction to eliminate the gap between the first limiting member 6 and the second limiting member 7. At this time, since the first limiting member 6 abuts against the second limiting member 7, the base 1 directly pushes the pushing and pulling member 2 to move in the first direction, so that the thrust on the pushing and pulling member 2 is relatively large, thereby ensuring the requirement of the pushing and pulling member 2 for the closing force of the test opening and closing member and ensuring the stability and reliability of closing the door; at the same time, it can avoid damaging the first elastic member 31 and the second elastic member 32 when only relying on the elastic forces of the first elastic member 31 and the second elastic member 32 to meet the relatively large closing force requirement, thereby ensuring the service life of the first elastic member 31 and the second elastic member 32.
[0062] When opening the test opening / closing member: First, the robotic arm drives the base 1 to move in the second direction, causing the guide body 5 to compress the second elastic member 32 in the second direction, so that the second elastic member 32 pushes the push-pull member 2 in the second direction; at the same time, the guide body 5 stretches the first elastic member 31 in the second direction to pull the push-pull member 2 to move in the second direction through the first elastic member 31, so that the short rod 222 of the push-pull member 2 pulls open the test opening / closing member in the second direction, and the abutting position, abutting angle, and abutting strength of the short rod 222 against the test opening / closing member are adjusted by the elastic forces of the first elastic member 31 and the second elastic member 32, thereby ensuring that the short rod 222 is not easily damaged by collision with the test opening / closing member; at this time, there is still a gap between the first limiting member 6 and the second limiting member 7, so that the push-pull member 2 is provided with a pulling force by the first elastic member 31 and the second elastic member 32 at this time.
[0063] It should be noted that since the pulling force required to open the test opening / closing member is small, that is, only a small pulling force is required to open the test opening / closing member. Therefore, during the entire process of opening the test opening / closing member, there is always a gap between the first limiting member 6 and the second limiting member 7, so that the push-pull member 2 is provided with a pulling force by the first elastic member 31 and the second elastic member 32 during the entire process of opening the test opening / closing member.
[0064] Furthermore, as Figure 1 shown, the connecting fixture further includes a guide member 4. The guide member 4 is located on the front side of the guide body 5 and is connected to the cylindrical rod 21. The guide member 4 can move on the bottom plate 11 in the first direction or the second direction to provide a guiding function for the movement of the cylindrical rod 21 through the movement of the guide member 4, further ensuring the guiding property and reliability of the movement of the push-pull member 2 in the first direction or the second direction.
[0065] Specifically, as Figure 1 shown, the guide member 4 includes a first connecting plate 41, a second connecting plate 42, and a roller 43; wherein, the first connecting plate 41 is fixedly sleeved on the cylindrical rod 21 of the push-pull member 2, and the second elastic member 32 is limited between the guide body 5 and the first connecting plate 41 to be able to provide a limiting function for the first elastic member 31; the second connecting plate 42 is vertically connected to one side of the first connecting plate 41 to form an L-shaped structure. The second connecting plate 42 is parallel and spaced from the bottom plate 11; a plurality of rollers 43 are connected to the bottom end of the second connecting plate 42, and the rollers 43 rollingly abut on the bottom plate 11, so that the rollers 43 can roll on the bottom plate 11 when the push-pull member 2 moves, thereby reducing the friction between the guide member 4 and the bottom plate 11 and ensuring better guiding effect of the guide member 4.
[0066] The specific processing process and assembly process of the connecting fixture in this embodiment are as follows:
[0067] During the processing process:
[0068] First, select the steel plate dimensions: length 220 mm * width 100 mm * thickness 2 mm, and process to form the base 1 with an L-shaped structure; then select the dimensions of the second limiting member 7: length 100 mm * width 50 mm * thickness 5 mm, and weld the second limiting member 7 to one side of the vertical plate 12 of the base 1.
[0069] After that, select the dimensions of the guide body 5: length 220 mm * width 30 mm * height 50 mm, and process four guide holes on the guide body 5, and place linear bearings with corresponding dimensions in each guide hole.
[0070] Then, take four cylindrical rods 21 with a diameter of 15 mm and a length of 180 mm, and take an iron sheet with a width of 15 mm, a length of 80 mm, and a thickness of 5 mm. Fold the iron sheet at the middle position by 90° to form an L-shaped push-pull rod, and thread the long rod 221 of the L-shaped push-pull rod into the cylindrical rod 21; use the above steps to make 4 push-pull members 2.
[0071] After that, select eight spiral springs with an inner diameter of 16 mm and a length of 60 mm to form four first elastic members 31 and four second elastic members 32.
[0072] During assembly:
[0073] First, fixedly connect the guide body 5 to the middle position of the bottom plate 11 through bolts; then insert the push-pull member 2 into the inner ring of the linear bearing inside the guide body 5; and install the first limiting member 6, the guide member 4, the first elastic member 31, and the second elastic member 32 onto the push-pull member 2 respectively.
[0074] Then, install the assembled connection fixture onto the robotic arm through the base 1, so that the robotic arm drives the base 1 to move synchronously.
[0075] The working process of the connection fixture in this embodiment is as follows:
[0076] When opening the test opening and closing member:
[0077] First, the robotic arm drives the base 1 to move along the second direction, so that the guide body 5 compresses the second elastic member 32 along the second direction, and the second elastic member 32 pushes the push-pull member 2 along the second direction; at the same time, the guide body 5 stretches the first elastic member 31 along the second direction, so that the first elastic member 31 pulls the push-pull member 2 to move along the second direction, and the short rod 222 of the push-pull member 2 pulls open the test opening and closing member along the second direction until the short rod 222 opens the test opening and closing member.
[0078] When closing the test opening and closing member:
[0079] First, the robotic arm drives the base 1 to move in the first direction, causing the guide body 5 to compress the first elastic member 31 in the first direction, such that the first elastic member 31 pushes the push-pull member 2 in the first direction; simultaneously, the guide body 5 stretches the second elastic member 32 in the first direction, so as to cause the second elastic member 32 to pull the push-pull member 2 to move in the first direction, such that the short rod 222 of the push-pull member 2 moves in the first direction until it abuts against and pushes the test opening / closing member.
[0080] Then, when the base 1 moves in the first direction to eliminate the gap between the first limiting member 6 and the second limiting member 7, at this time, the first limiting member 6 abuts against the second limiting member 7, causing the base 1 to directly push the push-pull member 2 to move in the first direction through the first limiting member 6 and the second limiting member 7, such that the short rod 222 of the push-pull member 2 continues to push the test opening / closing member in the first direction until the short rod 222 closes the test opening / closing member.
[0081] In the connection fixture of this embodiment, through the pushing and pulling actions of the mutual cooperation of the first elastic member 31 and the second elastic member 32, it can ensure a better flexible abutting effect between the push-pull member 2 and the test opening / closing member, and ensure the elastic buffering effect between the push-pull member 2 and the test opening / closing member, so as to avoid damaging the test opening / closing member, the robotic arm, and the push-pull member 2, and ensure a relatively high test efficiency.
[0082] In the connection fixture of this embodiment, by providing a plurality of push-pull members 2, multi-point contact with the test opening / closing member is realized, ensuring the force uniformity of the test opening / closing member, avoiding damage to the test opening / closing member, and being able to ensure the test efficiency and accuracy; moreover, through the independent elastic telescopic functions of the respective push-pull members 2, the push-pull members 2 can be fitted and abutted against the test opening / closing members of various composite structures, making the applicability and versatility of the entire connection fixture relatively high.
[0083] In the connection fixture of this embodiment, by providing the guide body 5 and the guide member 4, it can ensure the guiding property and reliability of the movement of the push-pull member 2 in the first direction or the second direction, ensure higher test accuracy, and can reduce the friction between the guide member 4 and the bottom plate 11.
[0084] The above content is only the preferred embodiment of the present utility model. For those of ordinary skill in the art, based on the idea of the present utility model, there will be changes in the specific implementation manners and application scopes. The content of this specification should not be construed as a limitation to the present utility model.
Claims
1. A connecting fixture is provided between the mechanical arm and the test opening and closing member, characterized in that: include: A base (1) connected to the mechanical arm, wherein a guide body (5) is provided at the middle of the base (1); A push-pull member (2) movably inserted into the guide body (5); An elastic member, the elastic member being sleeved on the push-pull member (2), the elastic member being located between the guide body (5) and the end of the push-pull member (2); When the robotic arm drives the base (1) to move along a first direction, the guide body (5) can act on the elastic member so that the elastic member drives the push-pull member (2) to close the test opening and closing member along the first direction; when the robotic arm drives the base (1) to move along a second direction, the guide body (5) can act on the elastic member so that the elastic member drives the push-pull member (2) to open the test opening and closing member along the second direction, and the second direction is opposite to the first direction.
2. The connection fixture according to claim 1, characterized in that: The elastic member comprises: A first elastic member (31) is sleeved on the push-pull member (2) and is limited between the front end of the push-pull member (2) and the front side of the guide body (5); when the mechanical arm drives the base (1) to move along the first direction, the guide body (5) can compress the first elastic member (31) so that the first elastic member (31) pushes the push-pull member (2) to close the test opening and closing member along the first direction; The second elastic member (32) is sleeved on the push-pull member (2) and limited between the rear end of the push-pull member (2) and the rear side of the guide body (5). When the mechanical arm drives the base (1) to move along the second direction, the guide body (5) can compress the second elastic member (32) so that the second elastic member (32) pushes the push-pull member (2) to open the test opening and closing member along the second direction.
3. The connection fixture according to claim 2, characterized in that: The elastic parameter of the first elastic member (31) is the same as or different from the elastic parameter of the second elastic member (32).
4. The connection fixture according to any one of claims 1 to 3, characterized in that: At least two push-pull members (2) are provided, and each of the push-pull members (2) is arranged side by side and at intervals.
5. The connection fixture according to claim 2, characterized in that: The push-pull member (2) comprises: A cylindrical rod (21), the rear end of the cylindrical rod (21) being connected to a first limiting member (6), and the second elastic member (32) being limited between the first limiting member (6) and the guide body (5); The L-shaped push-pull rod (22) comprises a long rod (221) and a short rod (222) connected vertically, wherein the front end of the cylindrical rod (21) extends out of the base (1) and is connected to the long rod (221), and the short rod (222) is used to contact the test opening and closing member.
6. The connection fixture according to claim 5, characterized in that: The short rod (222) is provided with a buffer member, and the buffer member is used to contact the test opening and closing member.
7. The connection fixture according to claim 5, characterized in that: The base (1) comprises: A bottom plate (11), wherein the guide body (5) is arranged at a middle position of the bottom plate (11); A vertical plate (12) is vertically connected to one end of the bottom plate (11); a second limit member (7) is provided on the vertical plate (12) on a side facing the push-pull member (2); a gap is provided between the second limit member (7) and the first limit member (6); and when the mechanical arm drives the base (1) to move along the first direction, the second limit member (7) can abut against the first limit member (6) so that the base (1) pushes the push-pull member (2) to close the test opening and closing member along the first direction.
8. The connection fixture according to claim 7, characterized in that: The connecting fixture also includes: A guide member (4) is located at the front side of the guide body (5) and connected to the cylindrical rod (21), and the guide member (4) can move on the bottom plate (11) along the first direction or the second direction.
9. The connection fixture according to claim 8, characterized in that: The guide member (4) comprises: A first connecting plate (41) is sleeved on the push-pull member (2), and the first elastic member (31) is limitedly located between the guide body (5) and the first connecting plate (41); A second connecting plate (42) vertically connected to one side of the first connecting plate (41), the second connecting plate (42) being parallel to and spaced from the bottom plate (11); Rollers (43), a plurality of rollers (43) are connected to the bottom end of the second connecting plate (42), and the rollers (43) roll against the bottom plate (11).
10. The connection fixture according to any one of claims 1 to 3, characterized in that: A guide hole is provided in the guide body (5), and a linear bearing is installed in the guide hole. The push-pull member (2) is inserted into the inner ring of the linear bearing.