Micro terminal assembly equipment

Abstract

The present invention provides a micro-terminal assembly device, comprising a base, a driving mechanism installed on the base, and a terminal placement jig installed on the base; the terminal placement jig is used to place terminals with wires; the terminal placement jig comprises a jig body, a movable block slidably installed on the jig body, and an elastic member installed between the jig body and the movable block; the jig body comprises a protruding portion and an insertion portion extending from one side of the top of the protruding portion toward the movable block, and the top surfaces of the protruding portion and the insertion portion are provided with wire grooves; the movable block comprises a plurality of clamping columns arranged on the top, and a terminal groove is provided between two adjacent clamping columns; the insertion portion is inserted in the corresponding terminal groove, and the length of the insertion portion is greater than or equal to the length of the corresponding terminal groove.

Description

Technical Field

[0001] The invention relates to the field of mechanical equipment, and in particular to a micro-terminal assembly device. Background Art

[0002] Terminal wire assembly refers to inserting a terminal wire with a terminal connector into a terminal housing. The prior art for assembling terminal wires mainly utilizes a robot to clamp the terminal wires and plug them into the terminal holes of the terminal housing one by one. The number of plugging actions required by the robot is determined by the number of terminal holes in the terminal housing, which greatly limits the efficiency of terminal wire assembly. At the same time, this assembly action in the prior art requires the use of a precision robot, resulting in a complex structure and high cost for the entire assembly equipment. For fine terminal wires with a diameter of less than 0.5 mm, machine assembly can easily damage the terminals. Currently, only manual assembly is done, especially when the number is large, such as eight or more, or even more than a dozen terminal wires. Manual assembly is not only time-consuming, but also results in a large number of defective products. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a fine terminal assembly device capable of assembling terminal wires with a diameter less than 0.5 mm.

[0004] The technical solution adopted by the present invention is: a fine terminal assembly device, comprising a base, a driving mechanism installed on the base, and a terminal placement fixture installed on the base; the terminal placement fixture is used to place a terminal with a wire, and the terminal with a wire includes a terminal part and a wire part; the terminal placement fixture includes a fixture body, a movable block slidably installed on the fixture body, and an elastic member installed between the fixture body and the movable block; the fixture body includes a protruding portion and an insertion portion extending from the top side of the protruding portion toward the movable block, and the top surfaces of the protruding portion and the insertion portion are provided with a wire groove; the movable block includes a plurality of clamping columns arranged at the top, and a terminal groove is provided between two adjacent clamping columns, and the terminal groove includes an outer groove at the top and an inner groove connected to the outer groove; the inner groove is for the insertion part to be inserted, and the cross-sectional width of the outer groove is smaller than the cross-sectional width of the inner groove, thereby forming a latch part to limit the up and down movement of the insertion part; the insertion part is inserted into the corresponding terminal groove, and the length of the insertion part is greater than or equal to the length of the corresponding terminal groove;

[0005] The driving mechanism comprises a cylinder and a sliding seat mounted on the base, a push block slidably mounted on the sliding seat, and a cylinder connecting block connected between the push block and the cylinder; a receiving position is provided at one end of the push block, and the receiving position is directly opposite to the terminal placement fixture;

[0006] When placing, first place the wire part with the wire terminal in the inner groove and the wire groove, then turn the front end of the terminal part upwards, and then pull the wire part so that the terminal part enters the inner groove; after the terminal part enters the inner groove, the latch part limits the front end of the terminal part, the bottom of the inner groove limits the back end of the terminal part, and the insertion part has a top end to limit the tail of the terminal part.

[0007] A further improvement to the above technical solution is that the terminal groove is arranged in a "convex" shape; and arc grooves are respectively arranged on opposite sides of the groove bottom of the movable block corresponding to the inner groove.

[0008] A further improvement to the above technical solution is that there are multiple insertion parts and multiple terminal slots, and the insertion parts match the terminal slots one by one; when the insertion parts are inserted into the corresponding inner slots, the wire slots are connected to the outer slots accordingly.

[0009] A further improvement to the above technical solution is that the fixture body is provided with a mounting groove and a color control area, one end of the elastic member is connected to the movable block, and the other end of the elastic member is installed inside the mounting groove; the color control area is close to the raised portion, and a color mark is provided in the color control area.

[0010] A further improvement to the above technical solution is that the jig body is provided with a limiting hole connected to the mounting groove, and the jig body also includes a limiting column installed in the limiting hole; the movable block is provided with a limiting groove on the side facing the limiting hole, and one end of the limiting column is inserted in the corresponding limiting groove.

[0011] A further improvement to the above technical solution is that it also includes a positioning seat installed on the base, the positioning seat is provided with a positioning groove, and the terminal placement fixture is detachably installed in the positioning groove.

[0012] A further improvement to the above technical solution is that it also includes a turntable away from the base, the turntable has an inclined groove, and the terminal placement fixture is placed on the inclined groove.

[0013] A further improvement to the above technical solution is that the driving mechanism further includes a protective shell covering the outside of the cylinder and the sliding seat.

[0014] A further improvement to the above technical solution is that a T-slot is formed at one end of the push block away from the accommodating position, the cylinder connecting block is T-shaped, and the cylinder connecting block is installed in the T-slot; the sliding seat has a sliding groove and a positioning plate, the push block can be slidably placed in the sliding groove, and the positioning plate is installed on one side of the sliding groove.

[0015] A further improvement to the above technical solution is that the base has a mounting plate, a chassis shell, and an air pressure valve, a solenoid valve and a counter mounted on the mounting plate; the chassis shell covers the air pressure valve, the solenoid valve and the counter, and one side of the counter with a display panel is exposed from the chassis shell, and the solenoid valve is respectively connected to the air pressure valve and the cylinder.

[0016] The beneficial effects of the present invention are as follows: the device can firmly position the fine strip-wire terminal in the wire groove and the terminal groove through the terminal placement fixture provided, and then drive the terminal shell and the strip-wire terminal to be assembled through the provided driving mechanism, thereby realizing the automated assembly of the fine terminal; it can be applicable to the assembly of multiple categories of fine terminals, and the equipment is compact and easy to promote; the terminal is fixed while the terminal shell is pushed by the driving mechanism and the reverse push structure of the terminal assembly overcomes the problem that multi-core fine wires are difficult to swing or are easy to loosen after being arranged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the micro-terminal assembly equipment of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the micro-terminal assembly equipment after removing the protective shell and chassis shell;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of a driving mechanism of a micro-terminal assembly device;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the terminal placement fixture of the micro-terminal assembly equipment;

[0021] Figure 5 for Figure 4 Exploded schematic diagram of micro-terminal assembly equipment;

[0022] Figure 6 for Figure 5 A schematic structural diagram of the micro-terminal assembly equipment from another angle;

[0023] Figure 7 for Figure 1 Schematic diagram of the terminal slot of the micro-terminal assembly equipment from the outside to the inside;

[0024] Figure 8 for Figure 1 Schematic diagram of the micro-terminal assembly equipment after the wire terminals are placed into the terminal placement fixture;

[0025] Fig. 9 for Figure 1 Schematic diagram of the micro-terminal assembly equipment with wire terminals after assembly;

[0026] Fig.10 for Figure 8 Schematic diagram of the structure of the wire terminal in the micro terminal assembly equipment.

[0027] Description of the accompanying drawings: 10-base, 11-mounting plate, 12-chassis shell, 13-air pressure valve, 14-solenoid valve, 15-counter, 20-driving mechanism, 21-cylinder, 22-sliding seat, 227-sliding groove, 228-positioning plate, 23-push block, 235-accommodating position, 236-T-slot, 24-cylinder connecting block, 25-protective shell, 30-terminal placement fixture, 40-fixture body, 41 - raised portion, 42-insertion portion, 43-wire slot, 44-limiting hole, 45-installation slot, 46-color comparison area, 50-movable block, 51-clamping column, 52-terminal slot, 53-outer slot, 54-inner slot, 55-clamping portion, 56-arc slot, 57-limiting slot, 58-spring slot, 70-positioning seat, 80-turntable, 81-inclined slot, 90-wire terminal, 91-terminal portion, 92-wire portion. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] like Figures 1 to 10 As shown, the present invention provides a fine terminal assembly device for assembling a terminal housing (not shown) and a strip wire terminal 90 (reference Fig.10 ) combined. The fine terminal assembly equipment includes a base 10, a driving mechanism 20 installed on the base 10, and a terminal placement jig 30 installed on the base 10; the terminal placement jig 30 is used to place the wired terminal 90, and the terminal placement jig 30 is directly opposite to the driving mechanism 20 after being installed on the base 10. In this embodiment, the fine terminal assembly equipment also includes a positioning seat 70 installed on the base 10; the terminal placement jig 30 is detachably installed on the positioning seat 70, and when the terminal placement jig 30 is installed on the positioning seat 70, the terminal placement jig 30 is directly opposite to the driving mechanism 20. The fine terminal assembly equipment also includes a turntable 80, which is used to pre-install the terminal placement jig 30. After the wired terminal 90 is installed on the terminal placement jig 30 on the turntable 80, the terminal placement jig 30 with the wired terminal 90 installed is moved to the positioning seat 70, and finally the driving mechanism 20 pushes the terminal housing to assemble with the wired terminal 90 on the terminal placement jig 30. The present invention adopts a reverse push structure in which a driving mechanism 20 drives a terminal housing (not shown) to assemble with a wired terminal 90 on a terminal placement fixture 30, thereby overcoming the problem that multi-core fine wires are difficult to sway or are easily loosened after being arranged.

[0030] like Figure 1 to Figure 2As shown, the base 10 has a mounting plate 11, a chassis shell 12, and an air pressure valve 13, a solenoid valve 14 and a counter 15 mounted on the mounting plate 11; the chassis shell 12 covers the air pressure valve 13, the solenoid valve 14 and the counter 15, and the counter 15 has a display panel on one side exposed from the chassis shell 12, and the solenoid valve 14 is connected to the air pressure valve 13 and the drive mechanism 20 respectively. The solenoid valve 14 is used to control the gas to enter or discharge the drive mechanism 20; the counter 15 can accurately display the assembly quantity of the terminal, avoiding the situation of manual error.

[0031] like Figure 2 and Figure 3 As shown, the driving mechanism 20 includes a cylinder 21 and a sliding seat 22 mounted on the base 10, a push block 23 slidably mounted on the sliding seat 22, a cylinder connecting block 24 connected between the push block 23 and the cylinder 21, and a protective shell 25 covering the outside of the cylinder 21 and the sliding seat 22; a receiving position 235 is provided at one end of the push block 23, and the receiving position 235 is directly opposite to the terminal placement fixture 30. The sliding seat 22 has a sliding groove 227 and a positioning plate 228, and the push block 23 can be slidably placed in the sliding groove 227. The positioning plate 228 is installed on one side of the sliding groove 227 to prevent the push block 23 from tilting. A T-slot 236 is formed at one end of the push block 23 away from the receiving position 235, and the cylinder connecting block 24 is arranged in a T shape, and the cylinder connecting block 24 is installed in the T-slot 236.

[0032] like Figures 4 to 9 As shown, the terminal placement jig 30 includes a jig body 40 , a movable block 50 slidably mounted on the jig body, and an elastic member (not shown) mounted between the jig body 40 and the movable block 50 .

[0033] The jig body 40 includes a raised portion 41 and an insertion portion 42 extending from the top side of the raised portion 41 toward the movable block. The top surfaces of the raised portion 41 and the insertion portion 42 are provided with wire grooves 43. In the present embodiment, there are multiple insertion portions 42 and they are arranged in a long strip shape. The multiple insertion portions 42 are arranged equidistantly, and the wire grooves 43 pass through the top surfaces of the raised portion 41 and the insertion portion 42. The jig body 40 is provided with a mounting groove 45 for mounting the movable block 50. The jig body 40 is provided with a limiting hole 44 connected to the mounting groove 45. The jig body 40 also includes a limiting column (not shown) installed in the limiting hole 44, and the limiting column is used to limit the motion range of the movable block 50. A color control area 46 is provided on the top of the jig body 40, and the color control area 46 is close to the raised portion 41. A color mark (not shown) is provided in the color control area 46, and the color mark corresponds to the color of the wire with the wire terminal 90. The setting of the color control area 46 enables workers to place the wires with the wire terminals in order according to their colors on the terminal placement jig 30, which can avoid product defects due to incorrect placement of the wires to a certain extent.

[0034] The movable block 50 includes a plurality of clamping columns 51 disposed at the top, a terminal groove 52 is disposed between two adjacent clamping columns 51, the insertion portion 42 is inserted into the corresponding terminal groove 52, and the length of the insertion portion 42 is greater than or equal to the length of the corresponding terminal groove 52. In this embodiment, one end of the insertion portion 42 is a top end (not shown), and the top end is located in the terminal groove 52 for resisting the wire terminal 90; the terminal groove 52 is arranged in a "convex" shape, including an outer groove 53 at the top and an inner groove 54 connected to the outer groove 53, and the inner groove 54 is for the insertion portion 42 to be inserted The cross-sectional width of the outer groove 53 is smaller than the cross-sectional width of the inner groove 54, thereby forming a latching portion 55 to limit the up and down movement of the insertion portion 42; the movable block 50 is provided with arc grooves 56 on the opposite sides of the groove bottom corresponding to the inner groove 54, and the arc groove 56 is used to cooperate with the protrusion (not shown) of the wire terminal 90; in this embodiment, there are multiple insertion portions 42, and there are multiple terminal grooves 52, and the insertion portion 42 and the terminal groove 52 are matched one by one; when the insertion portion 42 is inserted into the corresponding inner groove 54, the wire groove 43 is connected to the outer groove 53. The movable block 50 is provided with a limiting groove 57 on the side facing the limiting hole 44, and one end of the limiting column is inserted into the corresponding limiting groove 57; in this embodiment, the elastic member is a spring, and the movable block 50 is provided with a spring groove 58, one end of the elastic member is installed in the spring groove 58, and the other end of the elastic member is installed inside the installation groove 45.

[0035] In this embodiment, a plurality of matching wire slots 43 and terminal slots 52 are provided, and one or more wire terminals 90 can be placed, which has wide applicability. The width of the wire slot 43 is 0.4mm-2mm, which means that the device can assemble a wide range of wire terminals 90, and is particularly suitable for the assembly of fine terminals such as HRS / MOLEX / CJT, realizing the automated assembly of fine terminals, speeding up the production speed of products, and reducing the defective rate of products. The number of wire slots 43 and terminal slots 52 are both 17, and the terminal placement fixture 30 in this embodiment can place 17 wire terminals 90. Figure 7 As shown, this is a diagram after the wire terminal 90 is placed in the terminal placement fixture 30. At this time, the insertion portion 42 is partially inserted into the terminal slot 52, the terminal portion 91 of the wire terminal 90 is located in the terminal slot 52, and one third of the terminal portion 91 extends out of the terminal slot 52. The wire portion 92 of the wire terminal 90 is located in the wire slot 43. Figure 8 As shown, this is a diagram after the wire terminal 90 and the terminal housing are completely assembled. At this time, the insertion portion 42 completely penetrates the terminal groove 52, so that the terminal portion 91 of the wire terminal 90 is pushed out of the terminal groove 52.

[0036] Please also read Figure 1The positioning seat 70 is provided with a positioning groove (not shown), and the terminal placement fixture 30 is detachably installed in the positioning groove; the setting of the positioning groove allows the terminal placement fixture 30 to be stably installed on the positioning seat 70 to facilitate subsequent assembly.

[0037] The turntable 80 has an inclined groove 81, which is used to place the terminal placement jig 30. The setting of the inclined groove 81 allows the terminal placement jig 30 to be in an inclined state when placed in the inclined groove 81, so that people can comfortably place the wired terminals on the terminal placement jig 30, which is ergonomic and reduces workers' fatigue. In another embodiment, a mechanical arm (not shown) is installed on one side of the base 10, and the mechanical arm can transfer the terminal placement jig 30 with wired terminals 90 placed on the turntable 80 from the turntable 80 to the positioning groove of the positioning seat 70, further improving the automation of the equipment.

[0038] like Fig.10 As shown, in the present embodiment, the terminal 90 with wire has a terminal portion 91 and a wire portion 92, the terminal portion 91 is located in the inner groove 54, the wire portion 92 is located in the wire groove 43, the terminal portion 91 has a front end (not shown) and a back end (not shown), the front end is in contact with the latch portion 55, the back end is in contact with the bottom of the inner groove 54, and the top end is in contact with the tail of the terminal portion 91 to prevent the terminal 90 with wire from moving toward the insertion portion 42; after the terminal portion 91 and the wire portion 92 are crimped, protrusions (not shown) will be formed on both sides of the back end of the terminal portion 91, and the above-mentioned arc groove 56 is arranged to match the protrusions.

[0039] The working principle of the present invention is as follows: when the terminal needs to be assembled, the terminal housing is placed in the accommodation position 235, and then the wire terminal 90 is placed in an orderly manner on the terminal placement jig 30 according to the color comparison area 46 on the jig body 40. When placing, first place the wire portion 92 of the wire terminal 90 in the inner groove 54 and the wire groove 43, and then place the front end of the terminal portion 91 upward (reference Fig.10 ), then pull the wire portion 92 so that the terminal portion 91 enters the inner groove 54. After entering the inner groove 54, the latch portion 55 limits the front end of the terminal portion 91, the bottom of the inner groove 54 limits the back end of the terminal portion 91, and the top end of the insertion portion 42 limits the tail of the terminal portion 91. One third of the terminal portion 91 extends out of the inner groove 54. In this way, the wire terminal 90 is completely placed on the terminal placement fixture 30 (reference Figure 7), and then place the terminal placement jig 30 with the wired terminal 90 on the positioning seat 70, and then drive the cylinder 21 to operate so that the terminal housing in the accommodating position 235 approaches the terminal placement jig 30, and the terminal housing first contacts the exposed terminal portion 91, and after the exposed terminal portion 91 is completely assembled with the terminal housing, the cylinder 21 continues to operate, and the movable block 50 moves toward the jig body 40 due to the action of the push block 23 until the insertion portion 42 penetrates the terminal slot 52 (reference Figure 8 ), at this time, the terminal part 91 is completely assembled with the terminal housing and can be removed at last.

[0040] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A micro terminal assembly device, characterized in that: It comprises a base, a driving mechanism installed on the base, and a terminal placement jig installed on the base; the terminal placement jig is used to place terminals with wires, and the terminals with wires include a terminal part and a wire part; the terminal placement jig comprises a jig body, a movable block slidably installed on the jig body, and an elastic member installed between the jig body and the movable block; the jig body comprises a protruding portion and an insertion portion extending from the top side of the protruding portion toward the movable block, and the top surfaces of the protruding portion and the insertion portion are provided with wire grooves; the movable block comprises a plurality of clamping columns arranged at the top, and a terminal groove is arranged between two adjacent clamping columns, and the terminal groove comprises an outer groove at the top and an inner groove connected to the outer groove; the inner groove is for the insertion part to be inserted, and the cross-sectional width of the outer groove is smaller than the cross-sectional width of the inner groove, thereby forming a latching portion to limit the up and down movement of the insertion part; the insertion part is inserted into the corresponding terminal groove, and the length of the insertion part is greater than or equal to the length of the corresponding terminal groove; The driving mechanism comprises a cylinder and a sliding seat mounted on the base, a push block slidably mounted on the sliding seat, and a cylinder connecting block connected between the push block and the cylinder; a receiving position is provided at one end of the push block, and the receiving position is directly opposite to the terminal placement fixture; When placing, first place the wire part with the wire terminal in the inner groove and the wire groove, then turn the front end of the terminal part upwards, and then pull the wire part so that the terminal part enters the inner groove; after the terminal part enters the inner groove, the latch part limits the front end of the terminal part, the bottom of the inner groove limits the back end of the terminal part, and the insertion part has a top end to limit the tail of the terminal part.

2. The micro-terminal assembly equipment according to claim 1, characterized in that: The terminal groove is arranged in a "convex" shape; the movable block is provided with arc grooves on two opposite sides of the groove bottom corresponding to the inner groove.

3. The micro-terminal assembly equipment according to claim 2, characterized in that: There are a plurality of insertion parts and a plurality of terminal slots, and the insertion parts are matched with the terminal slots in a one-to-one correspondence; when the insertion parts are inserted into the corresponding inner slots, the wire slots are connected with the outer slots in a corresponding manner.

4. The micro-terminal assembly equipment according to claim 1, characterized in that: The fixture body is provided with a mounting groove and a color comparison area, one end of the elastic member is connected to the movable block, and the other end of the elastic member is installed inside the mounting groove; the color comparison area is close to the raised portion, and a color mark is provided inside the color comparison area.

5. The micro-terminal assembly equipment according to claim 4, characterized in that: The fixture body is provided with a limiting hole connected to the installation groove, and the fixture body also includes a limiting column installed in the limiting hole; the movable block is provided with a limiting groove on the side facing the limiting hole, and one end of the limiting column is inserted into the corresponding limiting groove.

6. The micro-terminal assembly equipment according to claim 1, characterized in that: It also includes a positioning seat installed on the base, the positioning seat is provided with a positioning groove, and the terminal placement fixture is detachably installed in the positioning groove.

7. The micro-terminal assembly equipment according to claim 1, characterized in that: It also includes a turntable far away from the base, the turntable has an inclined groove, and the terminal placement fixture is placed on the inclined groove.

8. The micro-terminal assembly equipment according to claim 1, characterized in that: The driving mechanism further comprises a protective shell which is arranged outside the cylinder and the sliding seat.

9. The micro-terminal assembly equipment according to claim 8, characterized in that: A T-slot is formed at one end of the push block away from the accommodating position, and the cylinder connecting block is T-shaped and installed in the T-slot; the sliding seat has a sliding groove and a positioning plate, the push block can be slidably placed in the sliding groove, and the positioning plate is installed on one side of the sliding groove.

10. The micro-terminal assembly equipment according to claim 8, characterized in that: The base has a mounting plate, a chassis shell, and an air pressure valve, an electromagnetic valve and a counter mounted on the mounting plate; the chassis shell covers the air pressure valve, the electromagnetic valve and the counter, and one side of the counter with a display panel is exposed from the chassis shell, and the electromagnetic valve is connected to the air pressure valve and the cylinder respectively.

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