A side push clamp structure

Abstract

The utility model is suitable for tooling furniture technical field provides a side push clamp structure, including bottom plate, the bottom plate is equipped with a plurality of through slots at intervals, the inner chamber of each through slot is provided with a sliding rod, a plurality of elastic jacks are provided on the sliding rod, the elastic jack is along the width direction distribution of through slot, a plurality of workpiece slots are set up in the corresponding position of the elastic jack of through slot inner wall one side, when the sliding rod slides to the front side, the elastic jack front end stretches into workpiece slot and tightens workpiece, when the sliding rod slides to the back side, the elastic jack is separated from workpiece slot. The side push clamp structure, through the elastic jack of sliding rod changes position, realizes the dynamic switching of workpiece constraint state, guarantees the butt joint accuracy when welding and avoids the workpiece damage caused by rigid clamping, when passing through the furnace, the sufficient space is reserved for the thermal expansion deformation of workpiece, can be freely switched in two states, completely solves the problem of traditional fixture constraint conflict.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, and particularly relates to a side-push fixture structure. Background Technology

[0002] In the field of electronic component manufacturing, especially in the production of precision components such as data cable interfaces and terminals, "welding positioning" and "reflow soldering" are key processes, and there is a clear contradiction in the constraint requirements of tooling fixtures for these two processes. During welding, it is necessary to ensure that the joints and terminals are precisely aligned without relative wobble; otherwise, defects such as incomplete soldering or mis-soldering are likely to occur. However, traditional fixtures mostly use rigid clamping structures, which are difficult to adjust. Too little clamping force can cause component misalignment, while too much clamping force can cause deformation of the precision component shell and damage to the pins. At the same time, some fixtures can only fix a single workpiece at a time, requiring frequent changes when adapting to multiple specifications and quantities of workpieces, resulting in low production efficiency.

[0003] After welding, the workpiece will undergo thermal expansion and deformation due to the high temperature during the high-temperature reflow process. If the rigid constraints used during welding are continued, the continuous pressure of the fixture will exacerbate the workpiece deformation, leading to an increased product scrap rate. Traditional fixtures, if the constraints need to be removed, require manual disassembly or adjustment, which not only increases working time but is also prone to workpiece displacement due to operational errors, affecting the reflow quality.

[0004] Therefore, it is necessary to design a tooling fixture that can switch between clamping and unclamping states to meet the different needs of the two stages of processing. Utility Model Content

[0005] This utility model provides a side-push clamping structure, which aims to solve the problems of existing clamping fixtures used in the production of electronic components, which are difficult to automatically adjust to both clamping and loosening states, are prone to damaging workpieces, and have low production efficiency.

[0006] This utility model is implemented as follows: a side-push clamp structure includes a base plate, on which multiple parallel through slots are spaced apart. Each through slot has a sliding rod arranged in its inner cavity along its length direction. The sliding rod can slide along the width direction of the through slot. Multiple elastic push rods are spaced apart on the sliding rod along its length direction. The elastic push rods are distributed along the width direction of the through slot. Multiple workpiece slots are provided on one side of the inner wall of the through groove, corresponding to the position of the elastic push rod. When the sliding rod slides to the front side, the front end of the elastic push rod extends into the workpiece slot and presses against the workpiece. When the sliding rod slides to the rear side, the elastic push rod disengages from the workpiece slot.

[0007] Preferably, a clearance groove is provided on the other side of the inner wall of the through groove at a position corresponding to the workpiece groove, and when the sliding rod slides to the rear side, the rear end of the elastic push rod extends into the clearance groove.

[0008] Preferably, the base plate has a sliding groove at each end of each through groove for the sliding rod end to slide.

[0009] Preferably, a first protrusion is formed between every two workpiece slots, and a second protrusion is formed between every two clearance slots. A first magnetic block is provided on the first protrusion, a second magnetic block is provided on the second protrusion, and a third magnetic block is provided on the sliding rod at a position opposite to the first and second magnetic blocks. The third magnetic block is attracted to the first and second magnetic blocks respectively.

[0010] Preferably, the sliding rod has through holes at both ends for connecting external devices to drive the sliding plate to slide.

[0011] Preferably, the rear ends of the two side walls of the workpiece groove are provided with limiting bosses. Beneficial effects

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The side-push clamp structure of this utility model can change the position of the workpiece by means of a sliding rod with an elastic push rod, so as to realize the dynamic switching of the constraint state of the workpiece. During welding, it can ensure the docking accuracy and avoid the workpiece damage caused by rigid clamping. During the furnace process, it can reserve sufficient space for the thermal expansion deformation of the workpiece. It can automatically switch between the two states, completely solve the problem of constraint conflict of traditional clamps, significantly reduce the product scrap rate, and adapt to automated production processes. The multi-station design can greatly improve production efficiency and ensure the consistency of product quality in batch production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural diagram of the present invention; Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0014] In the figure: 1-base plate, 2-through groove, 3-sliding rod, 4-workpiece groove, 5-avoiding groove, 6-elastic push rod, 7-first protrusion, 8-, 9-first magnetic block, 10-, 11-third magnetic block, 12-sliding groove, 13-limiting boss. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example

[0016] Please see Figure 1-3 This utility model provides a technical solution: a side-push clamp structure, including a base plate 1, on which a plurality of parallel through slots 2 are spaced apart. Each through slot 2 has a sliding rod 3 arranged in its inner cavity along its length direction. The sliding rod 3 can slide along the width direction of the through slot 2. A plurality of elastic push rods 6 are spaced apart on the sliding rod 2 along its length direction. The elastic push rods 6 are distributed along the width direction of the through slot 2.

[0017] Multiple workpiece grooves 4 are provided on one side of the inner wall of the through groove 2 at a position corresponding to the elastic push rod 6. When the sliding rod 3 slides to the front side, the front end of the elastic push rod 6 extends into the workpiece groove 4 and presses against the workpiece. When the sliding rod 3 slides to the rear side, the elastic push rod 6 disengages from the workpiece groove 4.

[0018] When welding of connectors and terminals is required, the sliding rod 3 is initially in the rear position, and the front end of the elastic push rod 6 disengages from the workpiece slot 4. The connector and terminal are placed in the workpiece slot 4 respectively. After the workpieces to be welded are placed in each workpiece slot 4, the sliding rod 3 is driven to slide to the front, which drives the elastic push rod 6 to move forward and press against the workpieces, so that the two are tightly joined. Then the entire fixture is placed in the automatic welding equipment to weld the workpieces.

[0019] After welding, the workpiece needs to be processed by reflow soldering. This requires passing through the furnace. As the temperature rises during the furnace process, the workpiece will deform and increase in volume. At this time, the workpiece cannot be pressed tightly and sufficient space should be left. Therefore, when passing through the furnace, the sliding rod 3 needs to be slid to the rear side first, so that the elastic push rod 6 can be removed from the workpiece groove 4 to release the pressure on the workpiece. Then, the workpiece can be passed through the furnace for reflow soldering.

[0020] The elastic push rod 6 can be a telescopic rod structure with a built-in spring. Its specific specifications and telescopic form are selected according to the requirements. The end of the elastic push rod 6 is provided with a flexible pad. When the sliding rod 3 slides to the front, it can press against the workpiece through the flexible pad. At the same time, due to the elastic force of the flexible pad and the elastic push rod 6, the workpiece will not be deformed or damaged.

[0021] All parts of the fixture are made of high-temperature resistant materials to prevent damage from high temperatures during reflow.

[0022] Please refer to Figure 3 Furthermore, a clearance groove 5 is provided on the other side of the inner wall of the through groove 2 at a position corresponding to the workpiece groove 4. When the sliding rod 3 slides to the rear side, the rear end of the elastic push rod 6 extends into the clearance groove 5.

[0023] In this embodiment, the elastic push rod 6 is provided through the sliding rod 3. Therefore, when the sliding rod 3 slides to the rear side, there needs to be space on the side wall of the through groove 2 to accommodate the rear end of the elastic push rod 6. Therefore, the clearance groove 5 is provided.

[0024] Please refer to Figure 3 Furthermore, the base plate 1 has a sliding groove 12 at both ends of each of the through grooves 2 for the sliding rod 3 to slide.

[0025] In this embodiment, the two ends of the sliding rod 3 slide along the slide groove 12, and the slide groove 12 guides the movement of the sliding rod 3 to prevent it from deviating or tilting.

[0026] Furthermore, the sliding rod 3 has through holes at both ends for connecting external devices to drive the sliding plate 3 to slide.

[0027] The forward and backward sliding motion of the sliding rod 3 is achieved by driving the PIN pin through an external device. When the workpiece is arranged in the workpiece slot 4 and waiting for welding, the production line control system sends a "sliding rod 3 forward" signal to the external driving device to start the pulling process. After receiving the signal, the external device drives its own PIN pin to perform a preset action, that is, the PIN pin extends out and inserts into the through hole, and then the external device drives the PIN pin to move forward a specified distance, thereby driving the sliding rod 3 to slide to the front side. The elastic push rod 6 holds the workpiece in place, keeping the joint and terminal connection stable. When the joint welding process is completed and it is time to enter the reflow process, the production line control system sends a "sliding rod 3 backward" signal to the external driving device, and the external device drives the PIN pin to move backward a specified distance, thereby driving the sliding rod 3 to slide to the rear side, releasing the elastic push rod 6 from fixing the product, meeting the need to relax the product in the reflow process, and avoiding product deformation caused by constraints at high temperatures.

[0028] The bottom of the slide 12 has an oblong hole for inserting the PIN pin upward into the through hole and for the PIN pin to move back and forth to avoid interference.

[0029] Limiting bosses 13 are provided at the rear ends of both side walls of the workpiece groove 4. The width between the two limiting bosses 13 is less than the width of the workpiece, so as to prevent the workpiece from moving out of the workpiece groove 4 due to external force after it loses its constraint, which would affect the reflow soldering effect, and to keep the workpiece stably in the workpiece groove 4 to complete the reflow process.

[0030] The width between the two limiting protrusions 13 is greater than the width of the front end of the elastic ejector pin 6 to avoid interfering with the normal operation of the elastic ejector pin 6. Example

[0031] Please refer to Figure 3A first protrusion 7 is formed between every two workpiece grooves 4, and a second protrusion 8 is formed between every two clearance grooves 5. A first magnetic block 9 is provided on the first protrusion 7, and a second magnetic block 10 is provided on the second protrusion 8. A third magnetic block 11 is provided on the sliding rod 3 at a position opposite to the first magnetic block 9 and the second magnetic block 10. The third magnetic block 11 is attracted to the first magnetic block 9 and the second magnetic block 10 respectively.

[0032] The three sets of magnetic blocks are fixedly installed in the designated positions by slotting.

[0033] In this embodiment, since the sliding rod 3 needs to be positioned when it slides to the front or rear side to avoid displacement during movement and transfer between different links, which would cause the position of the elastic pin 6 to change, three sets of magnetic blocks are provided. When the sliding rod 3 slides to the front side, the first magnetic block 9 and the third magnetic block 11 are within the interaction distance and attract each other, locking the sliding rod 3 in the front position. When the sliding rod 3 slides to the rear side, the second magnetic block 10 and the third magnetic block 11 are within the interaction distance and attract each other, locking the sliding rod 3 in the rear position, so as to position the elastic pin 6.

[0034] Furthermore, the magnetic force of the first magnetic block 9 and the second magnetic block 10 can be selected according to the requirements to ensure that when the sliding rod 3 is in the front, it will not be pulled backward by the second magnetic block 10. Similarly, when the sliding rod 3 is in the back, it will not be pulled forward by the first magnetic block 9.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A side-pushing clamp structure comprising a base plate (1), characterized in that: The base plate (1) has multiple parallel through slots (2) spaced apart. Each through slot (2) has a sliding rod (3) arranged along its length direction in its inner cavity. The sliding rod (3) can slide along the width direction of the through slot (2). Multiple elastic push rods (6) are arranged at intervals along the length direction of the sliding rod (3). The elastic push rods (6) are distributed along the width direction of the through slot (2). Multiple workpiece grooves (4) are provided on one side of the inner wall of the through groove (2) at a position corresponding to the elastic push rod (6). When the sliding rod (3) slides to the front side, the front end of the elastic push rod (6) extends into the workpiece groove (4) and presses against the workpiece. When the sliding rod (3) slides to the rear side, the elastic push rod (6) disengages from the workpiece groove (4).

2. A side-pushing clamp structure according to claim 1, characterized in that: A clearance groove (5) is provided on the other side of the inner wall of the through groove (2) at a position corresponding to the workpiece groove (4). When the sliding rod (3) slides to the rear side, the rear end of the elastic top rod (6) extends into the clearance groove (5).

3. A side-pushing clamp structure according to claim 1, wherein: The base plate (1) has a sliding groove (12) at both ends of each of the through grooves (2) for the sliding rod (3) to slide.

4. A side-pushing clamp structure according to claim 2, wherein: A first protrusion (7) is formed between every two workpiece grooves (4), and a second protrusion (8) is formed between every two clearance grooves (5). A first magnetic block (9) is provided on the first protrusion (7), and a second magnetic block (10) is provided on the second protrusion (8). A third magnetic block (11) is provided on the sliding rod (3) at a position opposite to the first magnetic block (9) and the second magnetic block (10). The third magnetic block (11) is attracted to the first magnetic block (9) and the second magnetic block (10) respectively.

5. A side-pushing clamp structure according to claim 1, wherein: The sliding rod (3) has through holes at both ends for connecting external devices to drive the sliding rod (3) to slide.

6. A side-pushing clamp structure according to claim 1, wherein: Limiting bosses (13) are provided at the rear ends of both sides of the workpiece groove (4).

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