tensile testing machine

Abstract

The application discloses a drawing testing machine and belongs to the technical field of drawing testing, which comprises a main machine, a first fixing plate is installed on the main machine, a guide plate is installed on the side of the main machine away from the first fixing plate, a second fixing plate is slidably installed on the guide plate, a fixing block is installed on the end of the first fixing plate and the second fixing plate that are close to each other, a fixing hole for inserting a male and female terminal is formed in the end face of the fixing block that is close to each other, a driving disc is rotatably installed on the side of the second fixing plate away from the first fixing plate, an adjusting block is slidably installed on the side of the driving disc away from the main machine, an adjusting groove for sliding cooperation with the adjusting block is formed in the surface of the driving disc, a push rod is hinged to the adjusting block, the end of the push rod away from the adjusting block is hinged to the second fixing plate, and a positioning assembly for fixing the position of the adjusting block is arranged on the driving disc. The application has the effect of improving the precision of the drawing testing machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pull-out test, in particular to a pull-out testing machine. BACKGROUND

[0002] The pull-out force test refers to the force required for inserting and pulling out the male and female electronic connectors matched with each other. The test is suitable for various tests of the insertion force, pull-out force, plastic holding force and service life of the connector. The insertion and pull-out force is an important mechanical performance and parameter of the connector, and its size affects the feel of the connector in use and the structure of the internal design of the connector.

[0003] In the related art, a microcomputer insertion and pull-out testing machine is disclosed in the Chinese Utility Model Patent with the publication number CN206974672U, which comprises a host computer, an insertion and pull-out device and a fixing device. The host computer comprises a rack and a control assembly, and the control assembly is electrically connected with the insertion and pull-out device and the fixing device. The insertion and pull-out device comprises a power assembly, a cam assembly, a sliding assembly, a connecting plate and a first clamping assembly. The power assembly is drivingly connected with the cam assembly. The first clamping assembly is installed on the connecting plate. The cam assembly and the connecting plate are connected through a connecting rod. The fixing device comprises a support frame, a guide shaft, an adjusting rod, a transmission plate, a meter and a second clamping assembly. The guide shaft and the adjusting rod are both installed on the support frame. The transmission plate is slidably connected with the guide shaft and the adjusting rod. The meter and the second clamping assembly are both installed on the transmission plate, and the meter is located at the rear side of the second clamping assembly.

[0004] According to the above related art, the inventor believes that the operator drives the cam assembly to rotate. The cam assembly pushes the connecting plate to move through the connecting rod, so that the male terminal on the first clamping assembly is inserted into the female terminal on the second clamping assembly. When the first clamping assembly does not move to the position closest to the second clamping assembly, the male and female terminals have been inserted. At this time, the continuous rotation of the cam assembly is easy to damage the machine and the male and female terminals, thereby affecting the experimental results and the test accuracy is poor. SUMMARY

[0005] In order to improve the accuracy of the pull-out testing machine, the present application provides a pull-out testing machine.

[0006] The pull-out testing machine provided by the present application adopts the following technical scheme:

[0007] The pulling test machine includes a main body, wherein a first fixed plate is installed on the main body, a guide plate is installed on the side of the main body away from the first fixed plate, a second fixed plate is slidably installed on the guide plate, and fixed blocks are installed on the ends of the first fixed plate and the second fixed plate close to each other, and fixing holes for inserting male and female terminals are provided on the end surfaces of the fixed blocks close to each other, a driving disc is rotatably installed on the side of the second fixed plate away from the first fixed plate, an adjusting block is slidably installed on the side of the driving disc away from the main body, an adjusting groove for slidingly cooperating with the adjusting block is provided on the surface of the driving disc through the center of the circle, a pushing rod is hinged on the adjusting block, and the end of the pushing rod away from the adjusting block is hinged to the second fixed plate, and a positioning component for fixing the position of the adjusting block is provided on the driving disc.

[0008] By adopting the above technical solution, the operator inserts the male and female terminals into the fixed blocks on the first fixed plate and the second fixed plate respectively, and then the operator starts the main machine and actively rotates the driving disc. The rotation of the driving disc drives the adjusting block to rotate around the driving disc, and the adjusting block pushes the second fixed plate to move through the push rod, so that the fixed blocks are close to each other and the male and female terminals are plugged in. At this time, the adjusting block moves away from the first fixed plate in the adjusting groove. When the adjusting block rotates to the closest to the first fixed plate, the adjusting block stops sliding in the adjusting groove. Then the operator uses the positioning assembly to fix the adjusting block, so that when the adjusting block rotates to the closest to the first fixed plate, the male and female terminals are in a just plugged in state, so that the male and female terminals will not be subjected to additional impact force during the reciprocating plugging process, thereby preventing damage to the machine and the male and female terminals, thereby affecting the experimental results and improving the accuracy of the pulling test machine.

[0009] Preferably, the positioning assembly includes a positioning ratchet plate passed through the driving disc, a limit spring fixedly connected to the positioning ratchet plate, a ratchet pattern is provided on the adjusting block, the positioning ratchet plate is meshed with the ratchet pattern on the adjusting block, a limit groove for the positioning ratchet plate to pass through is provided on the driving disc, the end of the limit spring away from the positioning ratchet plate is fixedly connected to the inner end face of the limit groove, the positioning ratchet plate is provided with a locking plate sliding away from the side of the adjusting block, the locking plate is slidably engaged with the limiting groove, and an adjusting assembly for driving the locking plate to abut against the positioning ratchet plate is provided on the driving disc.

[0010] When the adjusting block has not reached the position closest to the first fixed plate and the male and female terminals have been inserted, the driving disc drives the adjusting block to move closer to the first fixed plate, at this time the adjusting block slides in the adjusting groove, and the ratchet teeth of the adjusting block slide on the tooth back of the positioning ratchet plate; when the adjusting block reaches the position closest to the first fixed plate, the operator uses the adjusting assembly to make the locking plate abut against the positioning ratchet plate, and the positioning ratchet plate abuts against the adjusting block, thereby fixing the position of the adjusting block, which is convenient for the operator to use, and the limiting spring is arranged to make the ratchet plate abut against the adjusting block when the driving disc drives the adjusting block to move away from the first fixed plate, thereby enabling the operator to use the adjusting assembly to fix the adjusting block at any time during the movement of the adjusting block away from the first fixed plate, and improving the fault tolerance of the equipment.

[0011] Preferably, the adjusting assembly comprises an adjusting screw rod penetrating through the locking plate, a worm wheel fixedly sleeved on the end of the adjusting screw rod away from the locking plate, and a worm penetrating through the driving disc, the adjusting screw rod is threadedly connected with the locking plate, the worm wheel is engaged with the worm, and a knob is mounted on the end of the worm penetrating through the driving disc.

[0012] Through the above technical scheme, the operator rotates the knob, the rotation of the knob drives the rotation of the worm, the rotation of the worm drives the rotation of the worm wheel, the rotation of the worm wheel drives the rotation of the adjusting screw rod, and the rotation of the adjusting screw rod drives the movement of the locking plate, thereby abutting against the positioning ratchet plate, which is convenient for the operator to fix the position of the adjusting block.

[0013] Preferably, a reset plate is slidingly penetrated through the driving disc, the reset plate penetrates through the driving disc and is fixedly connected with the positioning ratchet plate, a reset sliding groove for slidingly cooperating with the reset plate is formed in the inner wall of the limiting groove, a guide rod is fixedly connected to the inner end surface of the adjusting groove, the adjusting block is sleeved on the guide rod and slidingly connected with the guide rod, a reset spring is sleeved on the guide rod, one end of the reset spring is fixedly connected with the adjusting block, and the other end of the reset spring is fixedly connected with the inner end surface of the adjusting groove.

[0014] Through the above technical scheme, when the operator fixes the adjusting block, the reset spring is in a compressed state; when the test is completed, the operator rotates the knob, the knob drives the rotation of the adjusting screw rod through the worm, the rotation of the adjusting screw rod drives the movement of the locking plate away from the positioning ratchet plate, thereby releasing the abutting state with the positioning ratchet plate, then the operator moves the reset plate, the movement of the reset plate drives the movement of the positioning ratchet plate, at this time the limiting spring is in a compressed state, the positioning ratchet plate is not in engagement with the adjusting block, and the adjusting block is moved back to the original position under the action of the reset spring, which is convenient for the operator to use repeatedly.

[0015] Preferably, a positioning slider is slidably penetrated on the inner wall of the fixing hole, a connecting rod is slidably penetrated on the end of the positioning slider that passes through the inner wall of the fixing hole, an arc rubber plate is fixedly connected to the end of the connecting rod away from the positioning slider, a positioning spring is fixedly connected to the end of the connecting rod that passes through the positioning slider, a positioning slot for slidingly cooperating with the connecting rod is provided on the positioning slider, the end of the positioning spring away from the connecting rod is fixedly connected to the inner end surface of the positioning slot, and a driving component for driving the positioning slider to move is provided on the fixed block.

[0016] By adopting the above technical solution, the operator inserts the male and female terminals into the fixed block, and then the operator uses the driving assembly to move the positioning slider toward the male and female terminals. The movement of the positioning slider drives the connecting rod to move, and the movement of the connecting rod drives the arc-shaped rubber plate to abut against the male and female terminals. At this time, the positioning spring is in a compressed state, and the arc-shaped rubber plate is tightly pressed against the male and female terminals under the action of the positioning spring, thereby facilitating the operator to fix the male and female terminals.

[0017] Preferably, the driving assembly includes a rotating sleeve rotatably installed in the fixed block, a helical gear ring fixedly connected to the rotating sleeve near the end of the positioning slider, and a push rod penetrated by the rotating sleeve, the positioning slider is provided with helical teeth on the side of the rotating sleeve close to the rotating sleeve, the helical gear ring is engaged with the helical teeth on the positioning slider, a spiral groove is provided on the push rod, a protrusion is provided on the rotating sleeve, the protrusion on the rotating sleeve is slidably matched with the spiral groove on the push rod, a positioning disc is fixedly connected to the end of the push rod close to the arc-shaped rubber plate, and a control assembly for fixing the rotating sleeve is provided on the fixed block.

[0018] By adopting the above technical solution, the operator inserts the male and female terminals into the fixed holes, and then the operator starts the driving disc, which drives the male and female terminals to engage, so that the male and female terminals move in the fixed holes, and the male and female terminals drive the positioning disc to move, and the movement of the positioning disc drives the push rod to move, and the movement of the push rod drives the rotating sleeve to rotate, and the rotation of the rotating sleeve drives the helical gear ring to rotate, and the rotation of the helical gear ring drives the positioning slider to move, and the positioning slider drives the arc-shaped rubber plate to press against the male and female terminals. The operator uses the control component to stop the rotating sleeve from rotating, thereby preventing the arc-shaped rubber plate from loosening and improving the stability of the arc-shaped rubber plate.

[0019] Preferably, the control assembly comprises a control ratchet plate arranged on the fixing block, a control spring fixedly connected to the control ratchet plate, and a set of ratchet teeth arranged on the end face of the rotating sleeve close to the control ratchet plate, the control ratchet plate is engaged with the ratchet teeth on the rotating sleeve, and the control sliding slot is arranged on the fixing block and used for slidingly cooperating with the control ratchet plate.

[0020] Through the above technical scheme, the male and female terminals are inserted into the fixing holes, the operator drives the disc to move the male and female terminals in the fixing holes, the male and female terminals drive the rotating sleeve to rotate through the positioning disc, the rotating sleeve rotates to make the ratchet teeth of the rotating sleeve slide on the tooth back of the control ratchet plate, when the arc-shaped rubber plate is tightly pressed against the male and female terminals, the control ratchet plate is engaged with the ratchet teeth of the rotating sleeve under the action of the control spring, thereby preventing the arc-shaped rubber plate from loosening.

[0021] Preferably, the control ratchet plate is fixedly connected with a moving plate, the inner wall of the control sliding slot is provided with a moving slot, the moving plate passes through the fixing block and is in sliding cooperation with the moving slot, the end of the pushing rod away from the positioning disc is fixedly connected with a sliding plug, the fixing block is provided with a sliding insertion slot used for slidingly cooperating with the sliding plug, and the end of the sliding plug away from the positioning disc is fixedly connected with a pressure spring, and the end of the pressure spring away from the sliding plug is fixedly connected with the inner end face of the sliding insertion slot.

[0022] Through the above technical scheme, the male and female terminals are inserted into the fixing holes, the operator drives the disc to move the male and female terminals in the fixing holes, the male and female terminals drive the rotating sleeve to rotate through the positioning disc, the rotating sleeve rotates to make the ratchet teeth of the rotating sleeve slide on the tooth back of the control ratchet plate, when the arc-shaped rubber plate is tightly pressed against the male and female terminals, the control ratchet plate is engaged with the ratchet teeth of the rotating sleeve under the action of the control spring, thereby preventing the arc-shaped rubber plate from loosening.

[0023] Preferably, the host is provided with a first driving block, a second driving block is arranged through the first driving block, a first driving sliding slot for sliding cooperation with the second driving block is arranged on the first driving block, a first driving screw is arranged through the first driving block, the first driving screw passes through the second driving block and is in threaded cooperation with the second driving block; a connecting plate is arranged through the second driving block, a second driving sliding slot for sliding cooperation with the connecting plate is arranged on the second driving block, a second driving screw is arranged through the second driving block, the second driving screw passes through the connecting plate and is in threaded cooperation with the connecting plate, and the connecting plate is fixedly connected with the first fixed plate

[0024] By adopting the above technical scheme, the operator rotates the second driving screw, the second driving screw rotates to drive the connecting plate to move up and down, the connecting plate moves to drive the first fixed plate to move, so as to adjust the position of the fixed block in the vertical direction; the operator rotates the first driving screw, the first driving screw rotates to drive the second driving block to move horizontally, so as to adjust the position of the fixed block in the horizontal direction, and it is convenient to use male and female terminals of different lengths and sizes for testing.

[0025] Preferably, the fixed block is provided with a third driving screw, the third driving screw is in threaded cooperation with the fixed block, a first fixed slot for sliding cooperation with the fixed block is arranged on the first fixed plate, the third driving screw passes through the inner wall of the first fixed slot and is in rotating cooperation with the first fixed plate; a second fixed slot for sliding cooperation with the fixed block is arranged on the second fixed plate, and the third driving screw passes through the inner wall of the second fixed slot and is in rotating cooperation with the second fixed plate

[0026] By adopting the above technical scheme, the operator rotates the third driving screw, the third driving screw rotates to drive the fixed block to move perpendicularly to the male and female terminals, which is convenient for the operator to fine-tune the position of the male and female terminals and facilitate the insertion of the male and female terminals.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The operator inserts the male and female terminals into the fixing blocks on the first fixing plate and the second fixing plate respectively, and then the operator starts the main machine and actively rotates the driving disc. The rotation of the driving disc drives the adjusting block to rotate around the driving disc, and the adjusting block pushes the second fixing plate to move through the pushing rod, so that the fixing blocks are close to each other, and the male and female terminals are plugged in. At this time, the adjusting block moves away from the first fixing plate in the adjusting groove. When the adjusting block rotates to the closest to the first fixing plate, the adjusting block stops sliding in the adjusting groove. Then the operator uses the positioning assembly to fix the adjusting block, so that when the adjusting block rotates to the closest to the first fixing plate, the male and female terminals are in a just plugged in state, so that the male and female terminals will not be subjected to additional impact force during the reciprocating plugging process, thereby preventing damage to the machine and the male and female terminals, thereby affecting the experimental results, and improving the accuracy of the pulling test machine;

[0029] 2. When the adjusting block has not reached the position closest to the first fixed plate and the male and female terminals have been plugged in, the driving disc drives the adjusting block to approach the first fixed plate. At this time, the adjusting block slides in the adjusting groove, and the ratchet teeth of the adjusting block slide on the tooth backs of the positioning ratchet plate; when the adjusting block reaches the position closest to the first fixed plate, the operator uses the adjusting assembly to make the locking plate abut against the positioning ratchet plate, and the positioning ratchet plate abuts against the adjusting block, thereby fixing the position of the adjusting block, which is convenient for the operator to use. The setting of the limit spring makes it possible for the ratchet plate to abut against the adjusting block when the driving disc drives the adjusting block to move away from the first fixed plate, so that the operator can use the adjusting assembly to fix the adjusting block at any time during the process of the section block moving away from the first fixed plate, thereby improving the fault tolerance of the equipment;

[0030] 3. The operator inserts the male and female terminals into the fixing holes, and then the operator starts the driving disc. The driving disc drives the male and female terminals to engage, so that the male and female terminals move in the fixing holes. The male and female terminals drive the positioning disc to move, and the positioning disc movement drives the push rod to move. The push rod movement drives the rotating sleeve to rotate, and the rotating sleeve rotation drives the helical gear ring to rotate. The helical gear ring rotation drives the positioning slider to move, and the positioning slider drives the arc-shaped rubber plate to press against the male and female terminals. The operator uses the control component to stop the rotating sleeve, thereby preventing the arc-shaped rubber plate from loosening and improving the stability of the arc-shaped rubber plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a pulling test machine according to an embodiment of the present application.

[0032] Figure 2 It is a schematic diagram of the internal structure of the pulling test machine of an embodiment of the present application.

[0033] Figure 3 yes Figure 2 Enlarged schematic diagram of point A in the middle.

[0034] Figure 4 yes Figure 2 Enlarged schematic diagram of point B in the middle.

[0035] Figure 5 It is a schematic diagram of the internal structure of the drive disc of an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1. Main unit; 11. First fixing plate; 111. First fixing slot; 12. Guide plate; 13. Second fixing plate; 131. Second fixing slot; 14. Fixing block; 141. Fixing hole; 142. Positioning slide; 143. Connecting rod; 144. Curved rubber plate; 145. Positioning spring; 146. Positioning chute; 147. Third driving screw; 148. Third rotating disk; 15. Driving disk; 151. Adjusting block; 152. Adjusting slot; 153. Push rod; 154. Guide rod; 155. Return spring; 16. First driving block; 161. Second driving block; 162. First driving chute; 163. First driving screw; 164. Connecting plate; 165. Second drive slide; 166, second drive screw; 167, first rotating disk; 168, second rotating disk; 2, positioning assembly; 21, positioning ratchet plate; 211, reset plate; 22, limit spring; 23, limit groove; 231, reset slide; 24, locking plate; 3, adjustment assembly; 31, adjustment screw; 32, worm gear; 33, worm; 34, knob; 4, drive assembly; 41, rotating sleeve; 42, bevel gear ring; 43, push rod; 44, positioning disk; 5, control assembly; 51, control ratchet plate; 52, control spring; 53, control slide; 54, moving plate; 55, moving groove; 56, sliding plug; 57, pressure spring; 58, sliding slot. DETAILED DESCRIPTION

[0038] The following is combined with Figures 1-5 This application is described in further detail.

[0039] The present application embodiment discloses a pull-out testing machine. Figure 1 The pull-out testing machine includes a main unit 1, which is horizontally arranged and fixedly connected to a guide plate 12. The guide plate 12 is a rectangular plate, horizontally arranged, and arranged along the length direction of the main unit 1. A second fixing plate 13 is arranged on the guide plate 12.

[0040] Reference Figure 1The second fixing plate 13 is a rectangular plate, arranged horizontally, and slidably mounted on the guide plate 12. A second fixing slot 131 is defined along its length on the second fixing plate 13. A first drive block 16 is fixedly connected to one end of the main unit 1. The first drive block 16 is arranged horizontally, and a second drive block 161 is inserted through the first drive block 16. The first drive block 16 has a first drive slot 162 defined along its length.

[0041] Reference Figure 2 The second drive block 161 is vertically arranged. The end of the second drive block 161 passes through the first drive block 16 and slides with the inner side wall of the first drive slot 162. A first drive screw 163 is inserted into the first drive block 16. The first drive screw 163 is horizontally arranged. The first drive screw 163 passes through the first drive block 16 and rotates with the first drive block 16. The end of the first drive screw 163 located in the first drive slot 162 passes through the second drive block 161. The first drive screw 163 is threadedly engaged with the second drive block 161. The first rotating disk 167 is mounted on the end of the first drive screw 163 that passes through the first drive block 16.

[0042] Reference Figure 2 The second drive block 161 is provided with a connecting plate 164, which is arranged horizontally and is located on the side of the second drive block 161 near the first guide plate 12. The second drive block 161 is provided with a second drive slot 165, which extends along the length of the second drive block 161. The connecting plate 164 penetrates the end side wall of the second drive block 161 and slides with the inner wall of the second drive slot 165.

[0043] Reference Figure 2 A second drive screw 166 is provided on the second drive block 161. The second drive screw 166 is vertically arranged. The end of the second drive screw 166 located within the second drive slot 165 passes through the second drive block 161. The second drive block 161 is threadedly engaged with the connecting plate 164. A second rotating disk 168 is mounted on the end of the second drive screw 166 that extends beyond the second drive block 161. The end of the connecting plate 164 away from the second drive block 161 is fixedly connected to the first fixing plate 11. The first fixing plate 11 is horizontally arranged and defines a first fixing slot 111.

[0044] Reference Figure 2 、 Figure 3A fixing block 14 is provided on each of the mutually adjacent ends of the first fixing plate 11 and the second fixing plate 13. The fixing blocks 14 are arranged horizontally, with the axes of adjacent fixing blocks 14 coinciding. A third drive screw 147 is provided through the fixing blocks 14. The third drive screw 147 is arranged horizontally and threadedly engaged with the fixing block 14. The third drive screw 147 passes through the first fixing plate 11 and is rotatably connected to the inner wall of the first fixing groove 111. The third drive screw 147 passes through the second fixing plate 13 and is rotatably connected to the inner wall of the second fixing groove 131. A third rotating disc 148 is provided on each of the ends of the third drive screw 147 that pass through the first fixing plate 11 and the second fixing plate 13.

[0045] The operator rotates the first rotating disk 167, and the first rotating disk 167 drives its second driving block to move horizontally through the first driving screw 163. The operator then rotates the second rotating disk 168, and the second rotating disk 168 drives the connecting plate 164 to move vertically through the second driving screw 166. The operator rotates the third rotating disk 148, and the third rotating disk 148 adjusts the fixed block 14 to move horizontally perpendicular to the length direction of the first driving block 16, making it convenient for the operator to adjust the position of the driving block.

[0046] Reference Figure 2 、 Figure 3 The adjacent end surfaces of the fixing block 14 are provided with fixing holes 141 for the male and female terminals to pass through. A positioning slider 142 is provided on the inner wall of the fixing hole 141. Multiple positioning sliders 142 are provided, and the multiple positioning sliders 142 are evenly arranged around the axis of the fixing hole 141. A connecting rod 143 is provided on the end of the positioning slider 142 that passes through the inner wall of the fixing hole 141. The connecting rod 143 passes through the positioning slider 142, and the axis of the connecting rod 143 coincides with the axis of the positioning slider 142. An arc-shaped rubber plate 144 is fixedly connected to the end of the connecting rod 143 that passes through the positioning slider 142.

[0047] Reference Figure 3 The positioning slider 142 is provided with a positioning slot 146. The inner wall of the positioning slot 146 slides with the side wall of the connecting rod 143. A positioning spring 145 is provided on the end of the connecting rod 143 located in the positioning slot 146. The positioning spring 145 is disposed in the positioning slot 146. One end of the positioning spring 145 is fixedly connected to the connecting rod 143, and the other end of the positioning spring 145 is fixedly connected to the inner end surface of the positioning slot 146.

[0048] Reference Figure 3The fixed block 14 is provided with a drive assembly 4 for driving the positioning slider 142. The drive assembly 4 includes a rotating sleeve 41, a helical gear ring 42, and a push rod 43. The rotating sleeve 41 is arranged horizontally and penetrates the fixed block 14, and the rotating sleeve 41 rotates in conjunction with the fixed block 14. The helical gear ring 42 is arranged vertically and is fixedly connected to the end of the rotating sleeve 41 near the positioning slider 142. The side of the positioning slider 142 near the rotating sleeve 41 is provided with helical teeth, and the helical gear ring 42 meshes with the helical teeth on the positioning slider 142.

[0049] Reference Figure 3 The push rod 43 is horizontally disposed and extends through the rotating sleeve 41. The push rod 43 is provided with a spiral groove, and the rotating sleeve 41 is provided with a bump. The bump on the rotating sleeve 41 slides and engages with the inner wall of the spiral groove. A positioning disc 44 is fixedly connected to the end of the push rod 43 that extends into the rotating sleeve 41. The positioning disc 44 is vertically disposed and slides and engages with the inner wall of the fixing hole 141.

[0050] Reference Figure 3 The end of the push rod 43 away from the positioning disc 44 penetrates into the fixed block 14. A sliding block 56 is provided on the end of the push rod 43 that penetrates into the fixed block 14. The sliding block 56 is rectangular and horizontally arranged. The sliding block 56 is fixedly connected to the push rod 43. The fixed block 14 has a sliding slot 58, the inner side wall of the sliding slot 58 slidingly engages with the outer side wall of the sliding block 56. A pressure spring 57 is fixedly connected to the side of the sliding block 56 away from the push rod 43. The end of the pressure spring 57 away from the sliding block 56 is fixedly connected to the inner end surface of the sliding slot 58.

[0051] The operator inserts the male and female terminals into the fixed block 14, and the male and female terminals push the positioning disc 44 to move. The positioning disc 44 drives the sliding block 56 to move through the push rod 43. The movement of the sliding block 56 compresses the pressure spring 57. The push rod 43 drives the positioning slider 142 to move toward the male and female terminals by rotating the sleeve 41. The positioning slider 142 drives the arc-shaped rubber plate 144 to abut against the male and female terminals through the connecting rod 143. At this time, the ratchet pattern on the rotating sleeve 41 engages with the control ratchet plate 51. The arc-shaped rubber plate 144 is pressed against the male and female terminals under the action of the positioning spring 145, thereby fixing the male and female terminals.

[0052] Reference Figure 3The fixed block 14 is provided with a control assembly 5 for fixing the rotating sleeve 41. The control assembly 5 includes a control ratchet plate 51 and a control spring 52. The control ratchet plate 51 is arranged horizontally and is passed through the fixed block 14. A circle of ratchet patterns is provided on the end of the rotating cylinder away from the positioning slider 142. The ratchet patterns on the rotating sleeve 41 engage with the control ratchet plate 51. A control slot 53 is provided on the fixed block 14. The inner wall of the control slot 53 slides with the side wall of the ratchet plate. The control spring 52 is arranged horizontally and is arranged in the control slot 53. One end of the control spring 52 is fixedly connected to the ratchet plate, and the other end of the control spring 52 is fixedly connected to the inner end face of the control slot 53.

[0053] Reference Figure 3 A movable plate 54 is provided on the control ratchet plate 51. The movable plate 54 is vertically arranged and fixedly connected to the control ratchet plate 51. The movable plate 54 is passed through the fixed block 14. A movable groove 55 is provided on the inner top surface of the control groove. The movable groove 55 is provided along the length direction of the fixed block 14. The movable groove 55 is connected to the top surface of the fixed block 14. The inner side wall of the movable groove 55 is slidably engaged with the inner side wall of the movable plate 54.

[0054] The operator moves the movable plate 54, and the movement of the movable plate 54 drives the control ratchet plate 51 to move. At this time, the control spring 52 is in a compressed state, and the control ratchet plate 51 is separated from the ratchet of the rotating sleeve 41. The sliding block 56 drives the push rod 43 to move under the action of the pressure spring 57, and the push rod 43 drives the rotating sleeve 41 to rotate in the opposite direction. The rotating sleeve 41 drives the arc rubber plate 144 away from the male and female terminals through the positioning slider 142, thereby releasing the fixation of the male and female terminals.

[0055] Reference Figure 4 、 Figure 5 A drive disc 15 is provided on the side of the second fixed plate 13 away from the first fixed plate 11. The drive disc 15 is arranged horizontally and is rotatably connected to the top surface of the main unit 1. An adjustment block 151 is provided on the drive disc 15. The adjustment block 151 is a rectangular block. The adjustment block 151 is arranged horizontally and slides on the drive disc 15. A push rod 153 is hingedly connected to the side of the adjustment block 151 away from the drive disc 15. The push rod 153 is arranged horizontally, and the end of the push rod 153 away from the adjustment block 151 is hingedly connected to the second fixed plate 13.

[0056] Reference Figure 4 、 Figure 5The driving disc 15 is horizontally provided with an adjusting groove 152 which is open at the position of the axis of the driving disc 15, the inner wall of the adjusting groove 152 is in sliding fit with the side wall of the adjusting block 151, and the inner end face of the adjusting groove 152 is fixedly connected with a guide rod 154. The guide rod 154 is horizontally arranged, the length direction of the guide rod 154 is consistent with the length direction of the adjusting groove 152, the guide rod 154 penetrates through the adjusting block 151 and is in sliding fit with the adjusting block 151, and the guide rod 154 is provided with a reset spring 155. The reset spring 155 is horizontally arranged, the reset spring 155 is sleeved on the guide rod 154, one end of the reset spring 155 is fixedly connected with the adjusting block 151, and the other end of the reset spring 155 is fixedly connected with the inner end face of the adjusting groove 152.

[0057] With reference to Figure 4 , Figure 5 The driving disc 15 is provided with a positioning assembly 2 for fixing the position of the adjusting block 151, the positioning assembly 2 comprises a positioning ratchet plate 21 and a limiting spring 22. The positioning ratchet plate 21 is horizontally arranged, the positioning ratchet plate 21 penetrates through the driving disc 15, and the length direction of the positioning ratchet plate 21 is consistent with the length direction of the adjusting groove 152. The adjusting block 151 is provided with a ratchet pattern, the positioning ratchet plate 21 is in mesh with the ratchet pattern on the adjusting block 151, and the driving disc 15 is provided with a limiting groove 23 for the ratchet plate to penetrate through.

[0058] With reference to Figure 4 , Figure 5 The limiting spring 22 is horizontally arranged, the limiting spring 22 is arranged in the limiting groove 23, one end of the limiting spring 22 is fixedly connected with the ratchet plate, and the other end of the limiting spring 22 is fixedly connected with the inner end face of the limiting groove 23. The positioning ratchet plate 21 is provided with a reset plate 211, the reset plate 211 is vertically arranged, the reset plate 211 penetrates through the driving disc 15, and the reset plate 211 penetrates through the driving disc 15 and is fixedly connected with the positioning ratchet plate 21. The inner top face of the limiting groove 23 is provided with a reset sliding groove 231, the reset sliding groove 231 is in communication with the top face of the driving disc 15, and the inner side wall of the reset sliding groove 231 is in sliding fit with the outer side wall of the reset plate 211.

[0059] With reference to Figure 5 The side face of the ratchet plate away from the adjusting block 151 is provided with a locking plate 24, the locking plate 24 is horizontally arranged, the side wall of the locking plate 24 is in sliding fit with the inner side wall of the limiting groove 23, and the limiting spring 22 penetrates through the locking plate 24. The driving disc 15 is provided with an adjusting assembly 3 for driving the locking plate 24 to abut against the positioning ratchet plate 21, the adjusting assembly 3 comprises an adjusting screw 31, a worm wheel 32 and a worm 33. The adjusting screw 31 is horizontally arranged, the adjusting screw 31 penetrates through the driving disc 15, the adjusting screw 31 is in rotary connection with the driving disc 15, and the adjusting screw 31 penetrates through the locking plate 24 and is in threaded fit with the locking plate 24.

[0060] With reference toFigure 5 The worm wheel 32 is vertically arranged and is arranged on the adjusting screw 31. The worm wheel 32 is fixedly sleeved on the end of the adjusting screw 31 away from the locking plate 24. The worm 33 is horizontally arranged and passes through the driving disc 15. The worm 33 is rotatably connected to the driving disc 15 and meshes with the worm wheel 32. A knob 34 is installed on the end of the worm 33 that passes through the driving disc 15.

[0061] The operator starts the host 1, which causes the driving disc 15 to rotate. When the adjusting block 151 has not yet reached the position closest to the first fixed plate 11 and the male and female terminals are already plugged in, the driving disc 15 drives the adjusting block 151 to approach the first fixed plate 11. At this time, the adjusting block 151 slides in the adjusting groove 152, and the ratchet of the adjusting block 151 slides on the tooth back of the positioning ratchet plate 21. When the adjusting block 151 reaches the position closest to the first fixed plate 11, the adjusting block 151 stops sliding in the adjusting groove 152, and the operator turns the knob 3 4. The knob 34 drives the worm wheel 32 to rotate through the worm 33, and the worm wheel 32 drives the locking plate 24 to move through the adjusting screw 31. The locking plate 24 positions the ratchet plate 21 to abut against the adjusting block 151, and the ratchet plate 21 is positioned to abut against the adjusting block 151, so that when the adjusting block 151 rotates to the closest to the first fixed plate 11, the male and female terminals are in a just plugged-in state, so that the male and female terminals will not be subjected to additional impact force during the reciprocating plug-in process, thereby preventing damage to the machine and the male and female terminals, thereby affecting the experimental results and improving the accuracy of the pulling test machine.

[0062] The implementation principle of the pull-out testing machine of the embodiment of the present application is: the operator inserts the male and female terminals into the fixed blocks 14 respectively, then the operator rotates the first rotating disk 167 to adjust the horizontal distance between the fixed blocks 14, the operator rotates the second rotating disk 168 to adjust the vertical distance of the fixed blocks 14, and then the operator uses the third rotating disk 148 to make the axes of the male and female terminals in a straight line.

[0063] The operator starts the main unit 1 and actively drives the second fixed plate 13 to move toward the first fixed plate 11 through the driving disc 15. When the adjusting block 151 has not reached the position closest to the first fixed plate 11 and the male and female terminals are already plugged in, the adjusting slider slides in the adjusting slot 152. When the adjusting block 151 reaches the position closest to the first fixed plate 11, the adjusting block 151 stops sliding in the adjusting slot 152. At this time, the male and female terminals squeeze each other and drive the positioning disc 44 to move, thereby fixing the male and female terminals to the fixed block 14; at this time, the operator turns the knob 34 to fix the adjusting block 151, so that when the adjusting block 151 is rotated to the position closest to the first fixed plate 11, the male and female terminals are in a just plugged in state, so that the male and female terminals will not be subjected to additional impact force during the reciprocating plugging process, thereby preventing damage to the machine and the male and female terminals, thereby affecting the experimental results and improving the accuracy of the pulling test machine.

[0064] After the test, the operator moves the movable plate 54 to release the fixed state of the male and female terminals, and then the operator turns the knob 34 to release the lock of the positioning ratchet plate 21, and then the operator moves the reset plate 211 to reset the adjustment slider, which is convenient for the operator to recycle.

[0065] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pull-out testing machine, comprising a main machine (1), characterized in that: The host (1) is provided with a first fixing plate (11), a guide plate (12) is provided on a side of the host (1) away from the first fixing plate (11), a second fixing plate (13) is slidably provided on the guide plate (12), fixing blocks (14) are provided on the ends of the first fixing plate (11) and the second fixing plate (13) close to each other, fixing holes (141) for inserting male and female terminals are provided on the end surfaces of the fixing blocks (14) close to each other, and a fixing block (141) is rotatably provided on the side of the second fixing plate (13) away from the first fixing plate (11). A driving disc (15), an adjusting block (151) is slidably mounted on the side of the driving disc (15) away from the main machine (1), an adjusting groove (152) for slidingly cooperating with the adjusting block (151) is opened on the surface of the driving disc (15) through the center of the circle, a pushing rod (153) is hinged on the adjusting block (151), and the end of the pushing rod (153) away from the adjusting block (151) is hinged to the second fixing plate (13), and a positioning component (2) for fixing the position of the adjusting block (151) is provided on the driving disc (15); The positioning assembly (2) includes a positioning ratchet plate (21) passing through the driving disc (15), a limit spring (22) fixedly connected to the positioning ratchet plate (21), a ratchet pattern provided on the adjusting block (151), the positioning ratchet plate (21) meshing with the ratchet pattern on the adjusting block (151), a limit slot (23) for the positioning ratchet plate (21) to pass through is provided on the driving disc (15), and the limit spring (22) is fixedly connected to the positioning ratchet plate (21). The end of the spring (22) away from the positioning ratchet plate (21) is fixedly connected to the inner end surface of the limiting groove (23); the side of the positioning ratchet plate (21) away from the adjusting block (151) is provided with a locking plate (24) for slidingly cooperating with the limiting groove (23); and the driving disc (15) is provided with an adjusting component (3) for driving the locking plate (24) to abut against the positioning ratchet plate (21); The adjusting assembly (3) comprises an adjusting screw (31) passing through the locking plate (24), a worm wheel (32) fixedly sleeved on the end of the adjusting screw (31) away from the locking plate (24), and a worm (33) passing through the driving disc (15); the adjusting screw (31) is threadedly engaged with the locking plate (24); the worm wheel (32) is meshed with the worm (33); and a knob (34) is installed on the end of the worm (33) passing through the driving disc (15); A reset plate (211) is slidably provided on the driving disc (15), and the reset plate (211) passes through the driving disc (15) and is fixedly connected to the positioning ratchet plate (21). A reset sliding groove (231) for slidingly cooperating with the reset plate (211) is provided on the inner wall of the limiting groove (23). A guide rod (154) is fixedly connected to the inner end surface of the adjusting groove (152). The adjusting block (151) is sleeved on the guide rod (154) and slidably connected to the guide rod (154). A reset spring (155) is sleeved on the guide rod (154), one end of the reset spring (155) is fixedly connected to the adjusting block (151), and the other end of the reset spring (155) is fixedly connected to the inner end surface of the adjusting groove (152).

2. The pull-out testing machine according to claim 1, characterized in that: A positioning slider (142) is slidably penetrated on the inner wall of the fixing hole (141), and a connecting rod (143) is slidably penetrated on the end of the positioning slider (142) passing through the inner wall of the fixing hole (141), and an arc-shaped rubber plate (144) is fixedly connected to the end of the connecting rod (143) away from the positioning slider (142), and a positioning spring (145) is fixedly connected to the end of the connecting rod (143) passing through the positioning slider (142), and a positioning slot (146) for slidingly cooperating with the connecting rod (143) is provided on the positioning slider (142), and the end of the positioning spring (145) away from the connecting rod (143) is fixedly connected to the inner end surface of the positioning slot (146), and a driving component (4) for driving the positioning slider (142) to move is provided on the fixed block (14).

3. The pull-out testing machine according to claim 2, characterized in that: The driving assembly (4) comprises a rotating sleeve (41) rotatably mounted in the fixed block (14), a helical tooth ring (42) fixedly connected to the end of the rotating sleeve (41) near the positioning slider (142), and a propulsion rod (43) penetrating the rotating sleeve (41). The side of the positioning slider (142) near the rotating sleeve (41) is provided with helical tooth patterns, the helical tooth ring (42) meshes with the helical tooth patterns on the positioning slider (142), a spiral groove is provided on the propulsion rod (43), a convex block is provided on the rotating sleeve (41), the convex block on the rotating sleeve (41) is slidably matched with the spiral groove on the propulsion rod (43), a positioning disc (44) is fixedly connected to the end of the propulsion rod (43) near the arc-shaped rubber plate (144), and a control assembly (5) for fixing the rotating sleeve (41) is provided on the fixed block (14).

4. The pull-out testing machine according to claim 3, characterized in that: The control assembly (5) includes a control ratchet plate (51) passing through the fixed block (14), and a control spring (52) fixedly connected to the control ratchet plate (51). A circle of ratchet patterns is provided on the end surface of the rotating sleeve (41) close to the control ratchet plate (51). The control ratchet plate (51) is engaged with the ratchet patterns on the rotating sleeve (41). A control slide groove (53) for slidingly cooperating with the control ratchet plate (51) is provided on the fixed block (14). The end of the control spring (52) away from the control ratchet plate (51) is fixedly connected to the inner end surface of the control slide groove (53).

5. The pull-out testing machine according to claim 4, characterized in that: A movable plate (54) is fixedly connected to the control ratchet plate (51), a movable groove (55) is provided on the inner wall of the control slide groove (53), the movable plate (54) passes through the fixed block (14) and slides with the movable groove (55), a sliding plug (56) is fixedly connected to the end of the propulsion rod (43) away from the positioning disc (44), a sliding slot (58) is provided on the fixed block (14) for sliding with the sliding plug (56), a pressure spring (57) is fixedly connected to the end of the sliding plug (56) away from the positioning disc (44), and the end of the pressure spring (57) away from the sliding plug (56) is fixedly connected to the inner end surface of the sliding slot (58).

6. The pull-out testing machine according to claim 1, characterized in that: The host (1) is provided with a first driving block (16), the first driving block (16) is provided with a second driving block (161), the first driving block (16) is provided with a first driving slot (162) for slidingly cooperating with the second driving block (161), the first driving block (16) is provided with a first driving screw (163), the first driving screw (163) passes through the second driving block (161) and is threadedly cooperating with the second driving block (161); the second driving block (161) is provided with a connecting plate (164), the second driving block (161) is provided with a second driving slot (165) for slidingly cooperating with the connecting plate (164), the second driving block (161) is provided with a second driving screw (166), the second driving screw (166) passes through the connecting plate (164) and is threadedly cooperating with the connecting plate (164), and the connecting plate (164) is fixedly connected to the first fixing plate (11).

7. The pull-out testing machine according to claim 1, characterized in that: The fixed block (14) is provided with a third driving screw (147), and the third driving screw (147) is threadedly engaged with the fixed block (14); the first fixed plate (11) is provided with a first fixed groove (111) for sliding engagement with the fixed block (14), and the third driving screw (147) passes through the inner wall of the first fixed groove (111) and is rotationally engaged with the first fixed plate (11); the second fixed plate (13) is provided with a second fixed groove (131) for sliding engagement with the fixed block (14), and the third driving screw (147) passes through the inner wall of the second fixed groove (131) and is rotationally engaged with the second fixed plate (13).

Images