Test fixture gripper

Abstract

The utility model discloses a test fixture gripper, which comprises a fixture main body, a connecting seat movably connected to the fixture main body and a plurality of gripper units arranged on the fixture main body, the fixture main body is provided with a slot corresponding to the connecting seat, and the bottom of the connecting seat is provided with a connecting block corresponding to the slot. And the connecting block is embedded into the slot from the side surface to connect and fix the connecting seat and the jig main body. According to the utility model, the slot of the jig main body is aligned with the connecting block of the connecting seat, and the slot and the connecting block are inserted, so that the connecting seat and the jig main body are connected and fixed. The connecting blocks and the inserting grooves are connected and fixed in a side face inserting mode, so that limiting and supporting are provided in the up-down direction, the situation that the connecting blocks fall off from the inserting grooves in the process that the movable module drives the jig to move is avoided, the stability of the connecting state is guaranteed, and meanwhile the connecting blocks are prevented from falling off from the inserting grooves. The assembling and disassembling efficiency between the jig body and the connecting base can be effectively improved, and the requirement for rapid replacement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing textile processing equipment, in particular to a test fixture gripper. Background Art

[0002] In the process of clothing processing, gripper components such as pneumatic needle claws or air nozzles are required to pick up fabrics, so as to facilitate moving the fabrics to the overlapping position for overlapping, and then sewing the overlapped fabrics through a sewing mechanism. Since the fabric specifications, thickness and other parameters selected for different products are different, when using gripper components to grab fabrics, problems such as at which position of the fabric to grab and what negative pressure to use for adsorption will affect whether the fabric can be grabbed, whether the fabric will fall during the grabbing and moving process, and whether placing the fabric will cause the fabric to wrinkle or fold. Therefore, before automatic processing of fabrics, the gripper needs to be debugged. In the prior art, generally, a tester holds the gripper unit, contacts the gripper unit with the fabric, starts the gripper unit to test the grabbing effect of the gripper unit on the fabric, and lifts the fabric to test the stability of the grabbing state. This testing method is troublesome to operate and has low efficiency, and cannot meet the actual testing requirements.

[0003] When using a testing machine to test the effect of the gripper unit on grabbing fabrics, the gripper unit needs to be adjusted and replaced frequently. Therefore, the loading and unloading speed of the fixture for fixing the gripper unit is directly related to the overall testing efficiency. If the fixture of the gripper is set too simply, although it is convenient for installation and disassembly, the connection stability is poor; if the fixture of the gripper is set too complicatedly, although the connection stability can be ensured, the requirement of rapid installation and disassembly cannot be met.

[0004] Therefore, there are defects in the prior art and improvement is needed. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a test fixture gripper.

[0006] The technical solution of the utility model is as follows: A test fixture gripper is provided, including: a fixture main body, a connecting seat movably connected to the fixture main body, and a plurality of gripper units arranged on the fixture main body. The fixture main body is provided with a slot corresponding to the connecting seat, the bottom of the connecting seat is provided with a connecting block corresponding to the slot, and the connecting block is embedded into the slot from the side to connect and fix the connecting seat and the fixture main body.

[0007] In a possible implementation manner, the slot is a T-shaped slot, and the cross section of the connecting block is an inverted T-shaped structure.

[0008] In a possible implementation, the slot is a dovetail slot, and the cross-section of the connecting block is a triangular or trapezoidal structure.

[0009] In a possible implementation, one end of the slot is open and the other end is closed.

[0010] In a possible implementation, through holes are provided on the side wall of the fixture body corresponding to the slots, and connecting holes are provided on the connecting seat corresponding to the through holes. The connecting seat and the fixture body are fixed by fasteners passing through the through holes and the connecting holes.

[0011] In a possible implementation, the fixture body includes: a fixture base, and a fixture frame movably arranged on the fixture base. The slot is arranged on the fixture base, and the gripper unit is movably arranged on the fixture frame.

[0012] In a possible implementation, the fixture frame adopts a star-shaped fixture. The star-shaped fixture includes a plurality of stacked adjustment frames. The centers of the adjustment frames are stacked and hinged and locked to the bottom of the fixture base. Adjustment grooves are provided on the adjustment frames, and the gripper unit is locked to the adjustment grooves.

[0013] In a possible implementation, the fixture frame adopts a square fixture. The square fixture includes: a fixed frame connected to the fixture base, and a movable frame movably arranged on the fixed frame. A plurality of adjustment grooves are respectively provided on the fixed frame and the movable frame. The gripper unit is locked to the adjustment grooves. Movable grooves are respectively provided on the fixed frame corresponding to both ends of the movable frame, and both ends of the movable frame are locked to the movable grooves.

[0014] In a possible implementation, the gripper unit adopts a vacuum suction nozzle or a pneumatic gripper.

[0015] In a possible implementation, the gripper unit is connected with a buffer mechanism, and the upper part of the buffer mechanism is connected with the fixture body.

[0016] With the above solution, in the present utility model, the slot of the fixture body is aligned with the connecting block of the connecting seat, and the slot and the connecting block are inserted, so as to connect and fix the connecting seat and the fixture body. The connecting block and the slot are connected and fixed by means of side insertion, so as to provide limit and support in the up and down directions, avoid the situation that the connecting block falls off from the slot during the process of the moving module driving the fixture to move, ensure the stability of the connection state, and at the same time, can effectively improve the assembly and disassembly efficiency between the fixture body and the connecting seat, and meet the requirement of quick replacement. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of adopting a star-shaped fixture and the gripper unit adopting a vacuum suction nozzle.

[0018] Figure 2 It is a schematic structural diagram of a star-shaped fixture with a pneumatic needle gripper for the gripper unit.

[0019] Figure 3 It is a schematic structural diagram of a square fixture with a vacuum suction nozzle for the gripper unit.

[0020] Figure 4 It is a schematic structural diagram of a square fixture with a pneumatic needle gripper for the gripper unit. Specific embodiments

[0021] The following will combine the accompanying drawings and specific embodiments to elaborate on the present utility model in detail.

[0022] Please refer to Figure 1 , the present utility model provides a test fixture gripper, including: a fixture main body 1, a connecting seat 2 movably connected to the fixture main body 1, and a plurality of gripper units 3 provided on the fixture main body 1. The fixture main body 1 is provided with a slot 111 corresponding to the connecting seat 2. The bottom of the connecting seat 2 is provided with a connecting block corresponding to the slot 111. The connecting block is inserted into the slot 111 from the side to connect and fix the connecting seat 2 and the fixture main body 1.

[0023] Before the fabric grasping test is required, the connecting block is fixedly arranged on the moving end of the moving module of the test machine table, and at the same time, the gripper unit 3 is arranged on the fixture main body 1. Then, the slot 111 of the fixture main body 1 is aligned with the connecting block of the connecting seat 2, and the slot 111 and the connecting block are inserted, so as to connect and fix the connecting seat 2 and the fixture main body 1. The connecting block and the slot 111 are connected and fixed by inserting from the side, so as to provide limit and support in the up and down directions, avoiding the situation that the connecting block falls off from the slot 111 during the process of the moving module driving the fixture to move, ensuring the stability of the connection state, and at the same time, the disassembly and assembly efficiency between the fixture main body 1 and the connecting seat 2 can be effectively improved to meet the requirement of quick replacement.

[0024] In some embodiments, the slot 111 is a T-shaped slot, and the cross-section of the connecting block is an inverted T-shaped structure. The protruding wing plates on the left and right sides of the inverted T-shaped structure contact the two sides of the T-shaped slot, so as to provide limit and support in the up and down directions, thus avoiding the connecting block falling off from the slot 111 and ensuring the stability of the connection state between the connecting seat 2 and the fixture main body 1.

[0025] In some embodiments, the slot 111 is a dovetail slot, and the cross section of the connection block is a triangular or trapezoidal structure. The cross section of the triangular structure or the trapezoidal structure of the connection block matches the dovetail slot of the slot 111. When the connection block is inserted into the dovetail slot, the inclined surface of the triangular structure or the trapezoidal structure of the connection block fits with the inclined surface of the dovetail slot, so that under the action of gravity, a tension force is formed between the fitting surfaces of the connection block and the slot 111, effectively ensuring the stability of the connection state between the connection seat 2 and the fixture body 1.

[0026] The slot 111 is open at one end and closed at the other end. When the connection block is inserted into the slot 111 from the opening of the slot 111 and pushed to contact the closed end of the slot 111, over-insertion is avoided to prevent the connection block from being separated from the slot 111 and affecting the connection effect between the connection seat 2 and the fixture body 1.

[0027] The side wall of the jig body 1 is provided with a through hole corresponding to the slot 111, and the connecting seat 2 is provided with a connecting hole corresponding to the through hole, and the connecting seat 2 is fixed to the jig body 1 by passing the fastener 4 through the through hole and the connecting hole. The connecting seat 2 and the jig body 1 are fixed by passing the fastener 4 through the through hole and the connecting hole, so as to ensure that the connecting block inserted in the slot 111 will not be disengaged from the slot 111 due to the shaking caused by the driving of the moving module, and further ensure the connection stability between the jig body 1 and the connecting seat 2. In some embodiments, a pin is used as the fastener 4, and the connecting seat 2 and the jig body 1 are connected and fixed by passing the pin through the through hole and the connecting hole, so as to ensure the stability of the connection between the connecting seat 2 and the jig body 1. In some embodiments, a screw is used as the fastener 4, and the screw is passed through the through hole and locked in the connecting hole, or after passing through the through hole and the connecting hole in turn, it is locked on the nut, so as to achieve the stability of the connection between the connecting seat 2 and the jig body 1, and facilitate the needs of assembly and disassembly.

[0028] The jig body 1 includes a jig seat 11 and a jig frame 12 movably disposed on the jig seat 11 . The slot 111 is disposed on the jig seat 11 , and the gripper unit 3 is movably disposed on the jig frame 12 .

[0029] In some embodiments, see Figure 1 , Figure 2, the fixture frame 12 uses a star-shaped fixture 121. The star-shaped fixture 121 includes a number of stacked adjustment frames 1211. The centers of the adjustment frames 1211 are stacked and hinged and locked to the bottom of the fixture base 11. An adjustment groove 13 is provided on the adjustment frame 1211, and the gripper unit 3 is locked to the adjustment groove 13. By changing the angle between the adjustment frame 1211 and the fixture base 11, the gripper unit 3 can be adjusted in the 360° direction, and the distance between the gripper unit 3 and the fixture base 11 can be changed through the adjustment groove 13, so as to realize the universal adjustment of the gripper unit 3 and meet the requirement of setting the gripper unit 3 at different positions to test the fabric. In different embodiments, according to the requirements of the position or quantity of the grasping points of the fabric, adjustment frames with different quantities and different angles can be adopted, and the gripper unit 3 can be set at the corresponding positions on the adjustment frame 1211, so as to meet the grasping test requirements of the fabric.

[0030] In some embodiments, please refer to Figure 3 , Figure 4 , the fixture frame 12 uses a square fixture 122. The square fixture 122 includes: a fixed frame 1221 connected to the fixture base 11 and a movable frame 1222 movably arranged on the fixed frame 1221. A number of adjustment grooves 13 are respectively provided on the fixed frame 1221 and the movable frame 1222. The gripper unit 3 is locked to the adjustment groove 13. Movable grooves 1223 are respectively provided at both ends of the fixed frame 1221 corresponding to the movable frame 1222, and both ends of the movable frame 1222 are locked to the movable grooves 1223. By changing the position where the movable frame 1222 is locked to the movable groove 1223 and correspondingly setting the gripper unit 3 at the corresponding position of the adjustment groove 13, the setting position of the gripper unit 3 is adjusted to meet the test requirements of grasping different positions of the fabric.

[0031] Comparing the above two types of fixture bodies, the adjustment of the star-shaped fixture 121 is more convenient and fast, and can well meet the adjustment requirements of the setting position of the gripper unit 3 during the test. However, relatively speaking, in the star-shaped fixture 121, the way of overlapping the adjustment frames 1211 with each other will cause a certain deviation in the connection height of the gripper units 3 on different adjustment frames 1211. Therefore, when installing the gripper unit 3, the height of the gripper unit 3 needs to be adjusted accordingly to ensure that the picking positions of the gripper units 3 are on the same horizontal plane or within a reasonable error range, so as to ensure the picking effect of each gripper unit 3 on the fabric. Relatively speaking, there is a certain inconvenience in the position adjustment process of the square fixture 122, and it is difficult to improve the adjustment efficiency. However, the method of the square fixture 122 can ensure that the installation and debugging between the gripper units 3 are more convenient and fast, and avoid the situation of repeatedly debugging the height of the gripper unit 3 many times.

[0032] The gripper unit 3 adopts a vacuum suction nozzle 31 or a pneumatic gripper 32.

[0033] The gripper unit 3 used for different fabrics is different. If the fabric has holes or good air permeability, the negative pressure generated by the vacuum suction nozzle 31 cannot normally adsorb the fabric. Therefore, the pneumatic gripper 32 can be used to pick up this type of fabric. For fabrics with poor air permeability or fabrics that are prone to leaving obvious needle holes on their surfaces when using the pneumatic gripper 32, the fabric of this type can be directly adsorbed by negative pressure through the vacuum suction nozzle 31, so as to facilitate picking up and moving.

[0034] The gripper unit 3 is connected with a buffer mechanism 33, and the upper part of the buffer mechanism 33 is connected with the fixture body 1. When picking up the fabric, the gripper unit 3 can be pressed on the fabric and moved downward, so as to increase the pressure between the gripper unit 3 and the fabric, thereby ensuring the picking effect of the gripper unit 3 on the fabric. The buffer mechanism 33 provides a buffering effect during the downward pressing process, ensuring full contact between the gripper unit 3 and the fabric and improving the picking effect on the fabric.

[0035] In summary, in the present utility model, the slot of the fixture body is aligned with the connection block of the connection seat, and the slot and the connection block are inserted, so as to connect and fix the connection seat and the fixture body. The connection block and the slot are connected and fixed by means of side insertion, so as to provide limitation and support in the up and down directions, avoiding the situation that the connection block falls off from the slot during the process of the moving module driving the fixture to move, ensuring the stability of the connection state. At the same time, the assembly and disassembly efficiency between the fixture body and the connection seat can be effectively improved, meeting the requirement of rapid replacement.

[0036] The above is only the preferred embodiment of the present utility model, and it is not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A test fixture gripper, characterized in that: include: A jig body, a connecting seat movably connected to the jig body, and a plurality of gripper units arranged on the jig body, the jig body is provided with a slot corresponding to the connecting seat, a connecting block is provided at the bottom of the connecting seat corresponding to the slot, and the connecting block is embedded in the slot from the side to connect and fix the connecting seat and the jig body.

2. The test fixture gripper according to claim 1, characterized in that: The slot is a T-shaped slot, and the cross section of the connecting block is an inverted T-shaped structure.

3. The test fixture gripper according to claim 1, characterized in that: The slot is a dovetail slot, and the cross section of the connecting block is a triangular or trapezoidal structure.

4. The test fixture gripper according to claim 1, characterized in that: One end of the slot is open, and the other end is closed.

5. The test fixture gripper according to claim 1, characterized in that: The side wall of the jig body is provided with a through hole corresponding to the slot, and the connecting seat is provided with a connecting hole corresponding to the through hole, and the connecting seat and the jig body are fixed by fasteners passing through the through hole and the connecting hole.

6. The test fixture gripper according to claim 1, characterized in that: The jig body comprises: a jig seat and a jig frame movably arranged on the jig seat, the slot is arranged on the jig seat, and the gripper unit is movably arranged on the jig frame.

7. The test fixture gripper according to claim 6, characterized in that: The jig frame adopts a star-shaped jig, which includes a plurality of overlapping adjustment frames, the centers of which are overlapped and hingedly locked to the bottom of the jig seat, and the adjustment frames are provided with adjustment slots, and the gripper unit is locked on the adjustment slots.

8. The test fixture gripper according to claim 6, characterized in that: The jig frame adopts a square jig, and the square jig includes: a fixed frame connected to the jig seat, and a movable frame movably arranged on the fixed frame, the fixed frame and the movable frame are respectively provided with a plurality of adjustment slots, the gripper unit is locked on the adjustment slots, and movable slots are respectively provided on the two ends of the fixed frame corresponding to the movable frame, and the two ends of the movable frame are locked on the movable slots.

9. The test fixture gripper according to claim 1, characterized in that: The gripper unit adopts a vacuum suction nozzle or a pneumatic needle claw.

10. The test fixture gripper according to claim 1, characterized in that: The gripper unit is connected with a buffer mechanism, and the upper part of the buffer mechanism is connected to the fixture body.

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