Switch stroke detection device

Abstract

The utility model provides a switch stroke detection device, which comprises a bottom plate, the top surface of the bottom plate is connected with a supporting column and a limiting supporting column, a workpiece is arranged on the top surfaces of the supporting column and the limiting supporting column, the supporting column and the limiting supporting column respectively support the workpiece, the limiting supporting column is provided with a limiting hole, and a positioning pin is arranged in the limiting hole in a penetrating manner. And the positioning pin penetrates through a through hole formed in the workpiece. A first pressing mechanism is arranged close to the supporting column and connected with the top face of the bottom plate. A second pressing mechanism is arranged close to the limiting supporting column and connected with the top face of the bottom plate. The top surface of the bottom plate is connected with a stroke detection mechanism; and the stroke detection mechanism detects the switch stroke on the workpiece. According to the utility model, a workpiece is positioned, stroke detection is rapidly carried out on a workpiece switch subjected to thermal shock, the detection requirement is met, the detection efficiency is improved, the large-batch production requirement is met, the detection cost is reduced, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of production detection, and particularly relates to a switch stroke detection device. Background Art

[0002] For injection molded parts with trigger switches, it is required to be able to trigger within a wide temperature range of -40~80°C. To ensure the rigor of the test, the measurement needs to be completed within 1 minute after thermal shock at low temperature of -40°C or high temperature of +80°C. The traditional measurement method is to fix the product on a jig, test the conduction state with a multimeter, and measure the switch stroke by combining the projection of a projector. The test process is cumbersome, taking about 10 minutes for each piece, which cannot meet the requirement of completing the measurement within 1 minute after thermal shock, and at the same time cannot meet the demand for mass production, wasting manpower.

[0003] Therefore, the above problems need to be solved urgently. Summary of the Utility Model

[0004] Purpose of the utility model: To overcome the above deficiencies, the utility model provides a switch stroke detection device, which can quickly complete the measurement of the switch stroke after thermal shock on the travel switch, improve the detection efficiency, and reduce the labor cost.

[0005] Technical solution: To achieve the above object, the present utility model provides a switch stroke detection device, which includes a bottom plate. A support column and a limit support column are connected to the top surface of the bottom plate. A workpiece is placed on the top surfaces of the support column and the limit support column. The support column and the limit support column respectively support the workpiece. The limit support column is provided with a limit hole, and a positioning pin is inserted through the limit hole. The positioning pin passes through a through hole provided in the workpiece. A first pressing mechanism is provided adjacent to the support column, and the first pressing mechanism is connected to the top surface of the bottom plate. A second pressing mechanism is provided adjacent to the limit support column, and the second pressing mechanism is connected to the top surface of the bottom plate. A stroke detection mechanism is connected to the top surface of the bottom plate, and the stroke detection mechanism detects the stroke of the workpiece switch. There are 2 or more limit support columns. When detecting the workpiece switch, place the workpiece that has undergone cold or thermal shock on the upper sides of the support column and the limit support column. Align the limit hole provided in the limit support column with the through hole provided in the workpiece, insert a positioning pin into the through hole provided in the workpiece, and the positioning pin passes through the above through hole and into the limit hole. The positioning pin limits the workpiece. Then, the first pressing mechanism and the second pressing mechanism press the workpiece against the upper sides of the support column and the limit support column to prevent the workpiece from moving during the detection process. Connect the switches provided in the workpiece to the power supply respectively. Finally, use the stroke detection mechanism to push the switch provided in the workpiece, and the switch triggers the power supply to conduct, and the indicator light turns on. At this time, the moving distance of the stroke detection mechanism is the trigger stroke of the switch. If the trigger stroke of the switch is 0.3 - 0.7 mm, it is qualified; otherwise, it is unqualified. Unlock the first pressing mechanism and the second pressing mechanism, remove the positioning pin, and replace the workpiece to continue the detection. The present utility model positions the workpiece, can quickly detect the stroke of the workpiece switch that has undergone cold and thermal shock, meets the detection requirements, improves the detection efficiency, meets the mass production demand, reduces the detection cost, and reduces the labor cost.

[0006] Furthermore, in the above-mentioned switch stroke detection device, the stroke detection mechanism includes a base connected to the top surface of the bottom plate, a detection rod slidably connected to the base, and a dial indicator slidably connected to the base. The top surface of the detection rod is provided with a vertical portion, which is integrally and vertically provided on the top surface of the detection rod. The dial indicator is arranged on the upper side of the detection rod, and the detection head of the dial indicator abuts against the vertical portion. The top surface of the base is provided with a locking screw, which locks and positions the dial indicator on the base. A fixing pin is inserted through the side wall of the base, and the detection rod is provided with a through hole corresponding to the fixing pin. A pushing mechanism is arranged on the side of the base away from the workpiece, and the pushing mechanism pushes the detection rod to move within the base. A detection portion is arranged on the side of the detection rod away from the pushing mechanism. During detection, the pushing mechanism pushes the detection rod towards the workpiece. The fixing pin inserted through the side wall of the base penetrates into the through hole provided on the detection rod, and the detection rod is positioned. The detection head of the dial indicator is abutted against the vertical portion, and the detection head of the dial indicator continues to press the vertical portion to rotate the pointer of the dial indicator for one full circle, and the pointer of the dial indicator returns to zero. Turn the locking screw to lock and position the dial indicator on the base. Pull out the fixing pin, use the pushing mechanism to push the detection rod, the detection portion on the detection rod pushes the switch on the workpiece, the switch is turned on to trigger the indicator light, the pushing mechanism stops moving, observe the rotation distance of the pointer of the dial indicator. If the rotation distance of the pointer of the dial indicator is between 0.3 - 0.7 mm, then the workpiece is qualified, otherwise it is unqualified. When testing the second workpiece, there is no need to adjust the dial indicator. Only the detection rod needs to be reset, the pointer of the dial indicator returns to zero, and the workpiece is reinstalled for detection.

[0007] Furthermore, in the above-mentioned switch stroke detection device, the pushing mechanism includes a T-shaped block connected to the top surface of the bottom plate. The T-shaped block is provided with a through threaded hole, and a screw rod is inserted into the threaded hole. One end of the screw rod away from the detection rod is connected with a plum blossom head. The screw rod is connected to the detection rod. By turning the plum blossom head, the screw rod rotates in the threaded hole of the T-shaped block to push the detection rod towards the workpiece.

[0008] Furthermore, in the above-mentioned switch stroke detection device, in order to perform stroke detection on the switch on the workpiece, four stroke detection mechanisms are arranged around the workpiece. The dial indicators of the four stroke detection mechanisms are arranged with different heights in a staggered manner. The detection portions are arranged in a staggered manner. The detection portions contact the switch, and the detection portions should avoid interfering with each other.

[0009] Furthermore, in the above-mentioned switch stroke detection device, the bottom plate is provided with a signal lamp and a power lamp. The signal lamp and the power lamp are respectively electrically connected to the power supply. The signal lamp is electrically connected with a detection clip. The detection clip is connected to the contact pin on the workpiece. Power is supplied to both sides of the workpiece switch. If the switch of the workpiece is triggered and turned on, the signal lamp lights up. If the switch of the workpiece is not triggered and turned on, the signal lamp does not light up.

[0010] Further, in the above-mentioned switch stroke detection device, the first pressing mechanism includes a first base block connected to the top surface of the bottom plate. A first quick clamp is connected to the top surface of the first base block. The chuck of the first quick clamp is connected to a first pressing plate. The first pressing plate is provided with a first pressing portion, and the width of the first pressing plate gradually decreases towards the first pressing portion. The first pressing portion is cylindrical.

[0011] Further, in the above-mentioned switch stroke detection device, the second pressing mechanism includes a second base block connected to the top surface of the bottom plate. A second quick clamp is connected to the top surface of the second base block. The chuck of the second quick clamp is connected to a second pressing plate. The second pressing plate is provided with a second claw portion, and the second claw portion presses the workpiece tightly. The positioning pin passes through between the second claw portions.

[0012] Further, in the above-mentioned switch stroke detection device, a spare parts box is provided on the top surface of the bottom plate, and a spare dial indicator is provided in the spare parts box.

[0013] Further, in the above-mentioned switch stroke detection device, handles are respectively connected to both sides of the bottom plate.

[0014] From the above technical solutions, it can be seen that the present utility model has the following beneficial effects: The switch stroke detection device of the present utility model can quickly perform stroke detection on the switches of workpieces subjected to thermal and cold shocks, meet the detection requirements, improve the detection efficiency, meet the mass production requirements, reduce the detection cost, and reduce the labor cost. Description of the Drawings

[0015] Figure 1 is a structural schematic diagram of the switch stroke detection device of the present utility model;

[0016] Figure 2 is a detection schematic diagram of the switch stroke detection device of the present utility model

[0017] Figure 3 is a structural schematic diagram of the limiting support column;

[0018] Figure 4 is a structural schematic diagram of the stroke detection mechanism;

[0019] Figure 5 is a structural schematic diagram of the first pressing mechanism;

[0020] Figure 6 is a structural schematic diagram of the second pressing mechanism.

[0021] In the figure: 1. Base plate, 11. Support column, 12. Limit support column, 2. Workpiece, 121. Limit hole, 122. Positioning pin, 13. First pressing mechanism, 131. First base block, 132. First quick clamp, 133. First pressing plate, 1331. First pressing part, 14. Second pressing mechanism, 141. Second base block, 142. Second quick clamp, 143. Second pressing plate, 1431. Second claw part, 15. Stroke detection mechanism, 151. Base, 152. Detection rod, 153. Dial indicator, 154. Vertical part, 155. Locking screw, 156. Fixing pin, 157. Pushing mechanism, 1571. T-shaped block, 1572. Screw rod, 1573. Plum blossom head, 158. Detection part, 16. Signal lamp, 17. Power supply lamp, 18. Spare parts box, 19. Handle. Detailed implementation method

[0022] Embodiment 1

[0023] As Figure 1-3 A switch stroke detection device as shown in the figure includes a base plate 1. A support column 11 and a limit support column 12 are connected to the top surface of the base plate 1. A workpiece 2 is placed on the top surfaces of the support column 11 and the limit support column 12. The support column 11 and the limit support column 12 respectively support the workpiece 2. The limit support column 12 is provided with a limit hole 121, and a positioning pin 122 is inserted into the limit hole 121. The positioning pin 122 passes through a through hole provided in the workpiece 2. A first pressing mechanism 13 is provided adjacent to the support column 11, and the first pressing mechanism 13 is connected to the top surface of the base plate 1. A second pressing mechanism 14 is provided adjacent to the limit support column 12, and the second pressing mechanism 14 is connected to the top surface of the base plate 1. A stroke detection mechanism 15 is connected to the top surface of the base plate 1, and the stroke detection mechanism 15 detects the stroke of the switch of the workpiece 2. There are 2 or more limit support columns 12. A spare parts box 18 is provided on the top surface of the base plate 1, and a spare dial indicator is provided in the spare parts box 18. Handles 19 are respectively connected to both sides of the base plate 1. In order to detect the stroke of the switch on the workpiece 2, four stroke detection mechanisms 15 are provided around the workpiece 2. The dial indicators 153 provided on the four stroke detection mechanisms 15 are arranged with different heights. The detection parts 158 are arranged in a staggered manner. The detection parts 158 are in contact with the switch, and the detection parts 158 should avoid interfering with each other. The base plate 1 is provided with a signal lamp 16 and a power supply lamp 17. The signal lamp 16 and the power supply lamp 17 are respectively electrically connected to the power supply, and the signal lamp 16 is electrically connected to a detection clip.

[0024] When detecting the switch of workpiece 2, place the workpiece 2 that has undergone cold or thermal shock on the upper sides of the support column 11 and the limit support column 12. The limit hole 121 provided on the limit support column 12 is aligned with the through hole provided on the workpiece. Insert a positioning pin 122 into the through hole provided in the workpiece 2. The positioning pin 122 passes through the above-mentioned through hole and into the limit hole 121. The positioning pin 122 positions the workpiece 2. Then, the first pressing mechanism 13 and the second pressing mechanism 14 press the workpiece 2 against the upper sides of the support column 11 and the limit support column 12 to prevent the workpiece 2 from moving during the detection process. The detection clip electrically connected to the signal lamp 16 is connected to the contact pin of the workpiece. The four stroke detection mechanisms 15 respectively push the four switches provided on the workpiece. The four switches are triggered in sequence. When the switch is triggered, the signal lamp 16 lights up. At this time, the moving distance of the stroke detection mechanism 15 is the trigger stroke of the switch. If the switch trigger stroke is 0.3 - 0.7 mm, then the workpiece 2 is qualified; otherwise, it is unqualified.

[0025] As Figure 4 For the switch stroke detection device shown, the stroke detection mechanism 15 includes a base 151 connected to the top surface of the bottom plate 1, a detection rod 152 slidably connected to the base 151, and a dial indicator 153 slidably connected to the base 151. The top surface of the detection rod 152 is provided with a vertical portion 154. The vertical portion 154 is integrally and vertically provided on the top surface of the detection rod 152. The dial indicator 153 is provided on the upper side of the detection rod 152. The detection head of the dial indicator 153 abuts against the vertical portion 154. The top surface of the base 151 is provided with a locking screw 155. The locking screw 155 locks and positions the dial indicator 153 on the base 151. A fixing pin 156 is inserted through the side wall of the base 151. The detection rod 152 is provided with a through hole corresponding to the fixing pin 156. A pushing mechanism 157 is provided on the side of the base 151 away from the workpiece 2. The pushing mechanism 157 pushes the detection rod 152 to move within the base 151. A detection portion 158 is provided on the side of the detection rod 152 away from the pushing mechanism 157. The pushing mechanism 157 includes a T-shaped block 1571 connected to the top surface of the bottom plate 1. The T-shaped block 1571 is provided with a through threaded hole. A screw 1572 is inserted into the above-mentioned threaded hole. One end of the screw 1572 away from the detection rod 152 is connected to a plum blossom head 1573. The screw 1572 is connected to the detection rod 152.

[0026] During detection, turn the plum blossom head 1573 to rotate the screw rod 1572 in the threaded hole of the T-shaped block 1571, pushing the detection rod 152 to move towards the workpiece 2. The fixing pin 156 passing through the side wall of the base 151 penetrates into the through hole provided in the detection rod 152, and at this time the detection rod 152 is positioned. Make the detection head of the dial indicator 153 abut against the vertical part 154, and continue to press the vertical part 154 with the detection head of the dial indicator 153 to rotate the pointer of the dial indicator 153 for one week, and zero the pointer of the dial indicator 153. Turn the locking screw 155 to lock and position the dial indicator 153 on the base 151. Pull out the fixing pin 156, use the plum blossom head 1573 to turn, the screw rod 1572 pushes the detection rod 152, and the detection part 158 on the detection rod 152 pushes the switch on the workpiece 2. The switch is turned on to trigger the indicator light. Stop turning the plum blossom head 1573 and observe the rotation distance of the pointer of the dial indicator 153. If the rotation distance of the pointer of the dial indicator 153 is between 0.3 - 0.7 mm, then the workpiece 2 is qualified; otherwise, it is unqualified.

[0027] As Figure 5 shown in the switch stroke detection device, the first pressing mechanism 13 includes a first base block 131 connected to the top surface of the bottom plate 1. A first quick clamp 132 is connected to the top surface of the first base block 131. The clamp head of the first quick clamp 132 is connected to a first pressing plate 133. The first pressing plate 133 is provided with a first pressing part 1331. The width of the first pressing plate 133 gradually decreases towards the first pressing part 1331, and the first pressing part 1331 is cylindrical.

[0028] As Figure 6 shown in the switch stroke detection device, the second pressing mechanism 14 includes a second base block 141 connected to the top surface of the bottom plate 1. A second quick clamp 142 is connected to the top surface of the second base block 141. The clamp head of the second quick clamp 142 is connected to a second pressing plate 143. The second pressing plate 143 is provided with a second claw part 1431. The second claw part 1431 presses the workpiece 2 tightly, and the positioning pin 122 passes through between the second claw parts 1431.

[0029] The above embodiments are exemplary. Their purpose is to illustrate the technical concept and characteristics of the present invention so that those skilled in this field can understand the content of the present invention and implement it accordingly. However, the protection scope of the present invention cannot be limited thereby. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A switch travel detection device, characterized in that: The invention comprises a bottom plate (1), the top surface of which is connected to a support column (11) and a position-limiting support column (12), a workpiece (2) being placed on the top surfaces of the support column (11) and the position-limiting support column (12), the support column (11) and the position-limiting support column (12) respectively supporting the workpiece (2), the position-limiting support column (12) being provided with a position-limiting hole (121), a positioning pin (122) being inserted into the position-limiting hole (121), the positioning pin (122) passing through a through hole provided in the workpiece (2); a first clamping mechanism (13) being provided adjacent to the support column (11), the first clamping mechanism (13) being connected to the top surface of the bottom plate (1); a second clamping mechanism (14) being provided adjacent to the position-limiting support column (12), the second clamping mechanism (14) being connected to the top surface of the bottom plate (1); a stroke detection mechanism (15) being connected to the top surface of the bottom plate (1), the stroke detection mechanism (15) detecting the stroke of the switch of the workpiece (2).

2. The switch travel detection device according to claim 1, characterized in that: The stroke detection mechanism (15) comprises a base (151) connected to the top surface of the bottom plate (1), a detection rod (152) slidably connected to the base (151), and a dial indicator (153) slidably connected to the base (151); a vertical portion (154) is provided on the top surface of the detection rod (152), and the vertical portion (154) is vertically and integrally arranged on the top surface of the detection rod (152); the dial indicator (153) is arranged on the upper side of the detection rod (152), and the detection head of the dial indicator (153) abuts against the vertical portion (154); a locking screw (155) is provided on the top surface of the base (151), and the locking screw (155) is The dial indicator (153) is locked and positioned on the base (151) by a screw (155); a fixing pin (156) is penetrated through a side wall of the base (151), and the detection rod (152) is provided with a through hole corresponding to the fixing pin (156); a pushing mechanism (157) is provided on a side of the base (151) away from the workpiece (2), and the pushing mechanism (157) pushes the detection rod (152) to move in the base (151); a detection portion (158) is provided on a side of the detection rod (152) away from the pushing mechanism (157); during detection, the detection portion (158) pushes a switch provided on the workpiece (2).

3. The switch travel detection device according to claim 2, characterized in that: The pushing mechanism (157) comprises a T-shaped block (1571) connected to the top surface of the bottom plate (1); the T-shaped block (1571) is provided with a threaded hole extending therethrough; a screw rod (1572) is inserted into the threaded hole; an end of the screw rod (1572) away from the detection rod (152) is connected to a plum blossom head (1573); the screw rod (1572) is connected to the detection rod (152); and the screw rod (1572) pushes the detection rod (152) to move.

4. The switch travel detection device according to claim 2, characterized in that: Four of the stroke detection mechanisms (15) are arranged around the workpiece (2); the dial indicators (153) provided on the four stroke detection mechanisms (15) are arranged in a staggered manner; and the detection parts (158) are arranged in a staggered manner.

5. The switch travel detection device according to claim 1, characterized in that: The bottom plate (1) is provided with a signal light (16) and a power light (17); the signal light (16) and the power light (17) are respectively electrically connected to a power source; and the signal light (16) is electrically connected to a detection clip.

6. The switch travel detection device according to claim 1, characterized in that: The first clamping mechanism (13) comprises a first base block (131) connected to the top surface of the bottom plate (1); the top surface of the first base block (131) is connected to a first quick clamp (132); the first quick clamp (132) is provided with a clamping head connected to a first pressing plate (133); the first pressing plate (133) is provided with a first pressing portion (1331); the width of the first pressing plate (133) gradually decreases from the first pressing portion (1331); and the first pressing portion (1331) is cylindrical.

7. The switch travel detection device according to claim 1, characterized in that: The second clamping mechanism (14) comprises a second base block (141) connected to the top surface of the base plate (1); the top surface of the second base block (141) is connected to a second quick clamp (142); the second quick clamp (142) is provided with a clamping head connected to a second pressing plate (143); the second pressing plate (143) is provided with a second claw portion (1431); the second claw portion (1431) presses the workpiece (2); and the positioning pin (122) passes between the second claw portions (1431).

8. The switch travel detection device according to claim 1, characterized in that: A spare parts box (18) is provided on the top surface of the base plate (1), and a spare dial indicator is provided in the spare parts box (18).

9. The switch travel detection device according to claim 1, characterized in that: Handles (19) are respectively connected to both sides of the bottom plate (1).

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