A test guide

Abstract

The utility model relates to a kind of guiding devices for testing, comprising: connecting seat;Positioning member, the end of positioning member is equipped with positioning hole;First guide piece, first guide piece is slidably connected with connecting seat, first guide piece is equipped with first elastic member, first elastic member can be with connecting seat;First movable seat, one end of first guide piece is connected with first movable seat, positioning member penetrates first movable seat, first elastic member can also be with first movable seat;Second guide piece, second guide piece is slidably connected with first movable seat and can penetrate first movable seat, second guide piece is equipped with second elastic member, second elastic member can be with first movable seat;Second movable seat, one end of second guide piece is connected with second movable seat, second movable seat is equipped with guide hole, guide hole is communicated with positioning hole, second elastic member can also be with second movable seat.The utility model relates to a kind of guiding devices for testing, can improve the alignment accuracy of bridge beam and slide.

Description

Technical Field

[0001] This utility model relates to the field of guiding device technology, and in particular to a guiding device for testing. Background Technology

[0002] A probe testing device is a device used to test the electrical performance of semiconductor devices, referring to... Figure 1 The probe testing device 9 shown includes a testing machine and a probe station. The testing machine includes a test base 91, a positioning base 93 connected to the test base 91, and a test piece 92. The end face of the test piece 92 is provided with a slide rail. The probe station includes a probe base 94, a positioning pin 96 connected to the probe base 94, and a bridging beam 95. By moving the testing machine, the bridging beam 95 extends into the slide rail until the test is completed. Because the bridging beam 95 needs to extend into the slide rail, the distance between the test base 91 and the probe base 94 is small during testing. Therefore, during the movement of the testing machine, the bridging beam 95 first extends into the slide rail, and then the positioning pin 96 extends into the positioning hole 71 of the positioning base 93. Currently, the testing machine is moved by a robotic arm, but the robotic arm's precision is not high. Because there is no guiding fit between the bridging beam 95 and the slide rail, when the alignment of the bridging beam 95 and the slide rail is inaccurate during the movement of the testing machine, the bridging beam 95 collides with the edge of the slide rail, resulting in damage to the bridging beam 95 and the test base 91. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a testing guide device that can improve the alignment accuracy of the bridging beam and the slide.

[0004] To solve the above-mentioned technical problems, this utility model provides a testing guide device, comprising: a connecting seat; a positioning member, the end of which is provided with a positioning hole; a first guide member, which is slidably connected to the connecting seat, and a first elastic member is sleeved on the first guide member, the first elastic member being able to abut against the connecting seat; a first movable seat, one end of the first guide member being connected to the first movable seat, the positioning member passing through the first movable seat, the first elastic member being located between the connecting seat and the first movable seat, the first elastic member also being able to abut against the first movable seat; a second guide member, which is slidably connected to the first movable seat and can pass through the first movable seat, the second guide member being sleeved with a second elastic member, the second elastic member being able to abut against the first movable seat; and a second movable seat, the end of the positioning member being located between the second movable seat and the first movable seat, one end of the second guide member being connected to the second movable seat, the second movable seat being provided with a guide hole communicating with the positioning hole, the second elastic member also being able to abut against the second movable seat.

[0005] In one embodiment of the present invention, the connecting seat is provided with a first through hole, a first protrusion is provided in the first through hole, the first guide member passes through the first protrusion, and the end of the first elastic member can abut against the first protrusion.

[0006] In one embodiment of the present invention, a first stop is provided at one end of the first guide member, the first stop being able to abut against the first protrusion, and the first protrusion being located between the first stop and the first elastic member.

[0007] In one embodiment of the present invention, the end of the first guide member is provided with a first connecting block, the width of the first connecting block is smaller than the width of the first guide member, the first movable seat is provided with a first connecting hole, and the first connecting block is connected to the first connecting hole.

[0008] In one embodiment of the present invention, a first groove is provided on the edge of the first connecting hole near one end of the connecting seat, and the end of the first elastic member can abut against the bottom of the first groove.

[0009] In one embodiment of the present invention, a connector is further included. The connector is connected to one end of the connecting seat near the first movable seat. The first guide and the positioning member both pass through the connector, and the first elastic member can pass through the connector.

[0010] In one embodiment of the present invention, the end of the connector near the first movable seat is provided with a clearance hole, and the clearance hole is located on the extension line of the center line of the second guide.

[0011] In one embodiment of the present invention, a fixing component is further included. The fixing component includes two clamping plates that form a clamping space between them. The side wall of the positioning member is provided with a slot, and the clamping plate can engage with the slot. The clamping plate is slidably connected to the connecting member.

[0012] In one embodiment of this utility model, the fixing component further includes a guide block and a driving block, the connecting seat includes a receiving space, the guide block and the driving block are both located in the receiving space, the clamping plate is provided with a positioning block, the connecting member is provided with a sliding groove, the positioning block is slidably connected to the sliding groove, the guide block is connected to the clamping plate, the driving block is provided with an adjustment hole, the guide block is slidably connected to the adjustment hole, and the included angle between the movement paths of the two guide blocks is an obtuse angle.

[0013] In one embodiment of the present invention, the fixing assembly further includes a support plate, an adjusting rod, and a handle. The support plate is connected to the connecting seat, the end of the adjusting rod is engaged with the driving block, the adjusting rod passes through the support plate and is threadedly connected to the support plate, and the handle is connected to the end of the adjusting rod away from the driving block.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0015] The present invention provides a testing guide device. Through the guide hole on the second movable seat, the positioning pin extends into the guide hole to guide the descent of the testing machine. This guides the movement of the testing machine before the bridging beam extends into the slide, thereby improving the alignment accuracy between the bridging beam and the slide. The first and second guide members allow the first movable seat to move closer to the second movable seat along the second guide member after the second movable seat abuts against the probe seat. The connecting seat also moves closer to the first movable seat along the first guide member, thus gradually reducing the overall length of the testing guide device. This prevents the bridging beam from being unable to extend into the slide for testing due to the non-adjustable length of the testing guide device. The fixed components facilitate the replacement of the positioning components. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a probe testing device in the prior art;

[0018] Figure 2 This is a schematic diagram of the structure of a testing guide device according to this utility model;

[0019] Figure 3 This is a schematic diagram of the connector structure;

[0020] Figure 4 This is a structural schematic diagram of the first guide component;

[0021] Figure 5 This is a schematic diagram of the structure of the first movable seat;

[0022] Figure 6 This is a schematic diagram of the assembly structure of the second guide component and the second movable seat;

[0023] Figure 7 This is a structural schematic diagram of the connector;

[0024] Figure 8 This is a schematic diagram of the assembly structure of the fixing components, positioning parts, and connecting seats;

[0025] Figure 9 This is a structural diagram of the fixed component;

[0026] Figure 10 yes Figure 9 A partial structural diagram.

[0027] Explanation of reference numerals in the accompanying drawings: 1. Connecting seat; 2. Connecting component; 3. First guide component; 4. First movable seat; 5. Second guide component; 6. Second movable seat; 7. Positioning component; 8. Fixing assembly; 9. Probe testing equipment; 11. First through hole; 12. First protrusion; 13. Accommodating space; 21. Fourth through hole; 22. Fifth through hole; 23. Clearance hole; 24. Slide groove; 31. First elastic element; 32. First stop block; 33. First connecting block; 41. First connection 42. Hole; 43. First groove; 44. Second through hole; 45. Second protrusion; 46. Third through hole; 57. Second elastic element; 58. Second stop block; 69. Guide hole; 70. Positioning hole; 81. Handle; 82. Support plate; 83. Drive block; 84. Clamping plate; 85. Positioning block; 86. Adjustment hole; 87. Guide block; 88. Adjustment rod; 99. Test seat; 90. Test piece; 91. Positioning seat; 92. Probe seat; 93. Bridging beam; 94. Positioning pin. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figures 2 to 6As shown, a test guide device of this utility model includes: a connecting seat 1; a positioning member 7, the end of which is provided with a positioning hole 71; a first guide member 3, which is slidably connected to the connecting seat 1, and a first elastic member 31 is sleeved on the first guide member 3, the first elastic member 31 being able to abut against the connecting seat 1; a first movable seat 4, one end of the first guide member 3 being connected to the first movable seat 4, the positioning member 7 passing through the first movable seat 4, the first elastic member 31 being located between the connecting seat 1 and the first movable seat 4, and the first elastic member 31 being able to abut against the first movable seat 1. The movable seat 4 abuts against the first movable seat 4; the second guide member 5 is slidably connected to the first movable seat 4 and can pass through the first movable seat 4, and the second guide member 5 is fitted with a second elastic member 51, which can abut against the first movable seat 4; the second movable seat 6 has the end of the positioning member 7 located between the second movable seat 6 and the first movable seat 4, one end of the second guide member 5 is connected to the second movable seat 6, the second movable seat 6 is provided with a guide hole 61, the guide hole 61 communicates with the positioning hole 71, and the second elastic member 51 can also abut against the second movable seat 6.

[0030] In this embodiment, a test guide device is connected to the position of the positioning seat 93 on the test machine. The test machine is no longer connected to the positioning seat 93. During the process of the test machine descending to the probe station, before the bridging beam 95 extends into the slide of the test piece 92, the positioning pin 96 first extends into the guide hole 61 of the second movable seat 6. During the continued descent of the probe station, the end of the positioning pin 96 extends into the positioning hole 71 of the positioning member 7. When the second movable seat 6 abuts against the probe seat 94, as the probe station continues to descend, the first movable seat 4 moves along the second guide member 5 toward the second movable seat 6 until the first movable seat 4 abuts against the second elastic member 51. Then, the connecting seat 1 moves along the first guide member 3 toward the first movable seat 4 until the bridging beam 95 extends into the slide, and the end of the positioning pin 96 engages with the bottom of the positioning hole 71 of the positioning member 7. By setting the guide hole 61 on the second movable seat 6, the positioning pin 96 can guide the descent of the testing machine after extending into the guide hole 61. This guides the movement of the testing machine before the bridging beam 95 extends into the slide, thereby improving the alignment accuracy between the bridging beam 95 and the slide. By setting the first guide 3 and the second guide 5, after the second movable seat 6 abuts against the probe seat 94, the first movable seat 4 can move along the second guide 5 toward the second movable seat 6, and the connecting seat 1 moves along the first guide 3 toward the first movable seat 4. This gradually reduces the overall length of the testing guide device, preventing the bridging beam 95 from being unable to extend into the slide for testing due to the non-adjustable length of the testing guide device.

[0031] Reference Figure 3As shown, the connecting seat 1 is connected to the side of the test seat 91 near the probe station. The first guide 3 is slidably connected to the connecting seat 1. A first elastic element 31 is sleeved on the first guide 3, and the first elastic element 31 can abut against the connecting seat 1. Specifically, the connecting seat 1 is provided with a first through hole 11, and the inner wall of the first through hole 11 is provided with an annular first protrusion 12. The first guide 3 is cylindrical and passes through the first protrusion 12. The first elastic element 31 can be regarded as a spring and is sleeved on the first guide 3. The first elastic element 31 can slide on the first guide 3, so that the end of the first elastic element 31 can abut against the first protrusion 12.

[0032] Reference Figure 4 As shown, the top of the first guide member 3 is provided with a first stop 32, which is slidably connected to the first through hole 11. The first stop 32 can abut against the top of the first protrusion 12, which is located between the first stop 32 and the first elastic member 31. The end of the first elastic member 31 can abut against the bottom end of the first protrusion 12. By setting the first stop 32, the first guide member 3 can be prevented from disengaging from the first through hole 11, and the first stop 32 slides within the first through hole 11, making the movement of the connecting seat 1 more stable.

[0033] Reference Figure 5 As shown, the first movable seat 4 is located below the connecting seat 1, the bottom end of the first guide member 3 is connected to the first movable seat 4, and the first elastic member 31 is located between the connecting seat 1 and the first movable seat 4. The first elastic member 31 can also abut against the first movable seat 4. Specifically, the bottom end of the first guide member 3 is connected to a first connecting block 33. The first connecting block 33 is cylindrical, and its side wall is threaded. The width of the first connecting block 33 is smaller than the width of the first guide member 3, that is, the diameter of the first connecting block 33 is smaller than the diameter of the first guide member 3. The first movable seat 4 is provided with a first connecting hole 41, and the first connecting block 33 is threadedly connected to the first connecting hole 41. Preferably, the end face of the first stop block 32 is provided with a locking hole for engaging with a screwdriver. The locking hole drives the first guide member 3 to rotate, thereby facilitating the threaded connection between the first connecting block 33 and the first connecting hole 41. The length of the first through hole 11 is greater than the length of the first guide member 3, so that when the connecting seat 1 abuts against the first movable seat 4, the first stop 32 will not move to the top of the first through hole 11, thereby avoiding damage to the first stop 32.

[0034] A first groove 42 is provided on the edge of the first connecting hole 41 near one end of the connecting seat 1. The bottom end of the first elastic member 31 can abut against the bottom of the first groove 42, so that both ends of the first elastic member 31 can abut against the bottom of the first protrusion 12 and the first groove 42 respectively. As the connecting seat 1 moves along the first guide member 3 toward the first movable seat 4, both ends of the first elastic member 31 abut against the bottom of the first protrusion 12 and the first groove 42 respectively. As the first movable seat 4 continues to move, the first elastic member 31 is compressed. As the connecting seat 1 moves away from the first movable seat 4, the first elastic member 31 can drive the first movable seat 4 to separate from the connecting seat 1. At the same time, the first elastic member 31 has a buffering effect during the movement of the connecting seat 1.

[0035] Reference Figure 6 As shown, the second guide member 5 is slidably connected to the first movable seat 4 and can pass through the first movable seat 4. A second elastic member 51 is sleeved on the second guide member 5, and the second elastic member 51 can abut against the first movable seat 4. Specifically, the top of the second guide member 5 is provided with a second stop 52, the connecting seat 1 is provided with a second through hole 43, and the inner wall of the second through hole 43 is provided with a second protrusion 44. The cooperation method between the second guide member 5 and the second through hole 43 is the same as the cooperation method between the first guide member 3 and the first through hole 11, and will not be described again.

[0036] The second movable seat 6 has one end connected to the second guide member 5. The second movable seat 6 has a guide hole 61, and the second elastic member 51 can also abut against the second movable seat 6. Specifically, the second movable seat 6 has a second connecting hole, and a second groove is provided on the edge of the second connecting hole near one end of the first movable seat 4. The bottom end of the second guide member 5 has a second connecting block. The cooperation method between the second connecting block and the second connecting hole is the same as the cooperation method between the first connecting block 33 and the first connecting hole 41, and will not be described again. The two ends of the second elastic member 51 can abut against the bottom of the second protrusion 44 and the second groove, respectively. The cooperation method between the second elastic member 51 and the first movable seat 4 is the same as the cooperation method between the first elastic member 31 and the connecting seat 1, and will not be described again. The guide hole 61 is a through hole, and the diameter of the end of the guide hole 61 away from the first movable seat 4 gradually increases in the direction away from the first movable seat 4, so that the side wall of the end of the guide hole 61 forms a guide surface. When the end of the positioning pin 96 abuts against the guide surface, the guide surface can guide the testing machine, so that the end of the positioning pin 96 extends into the guide hole 61.

[0037] Preferably, the test guide device includes at least two first guide members 3 and at least two second guide members 5, thereby making the movement of the first movable seat 4 and the connecting seat 1 more stable.

[0038] Reference Figure 8As shown, the positioning element 7 is used to engage with the positioning pin 96 for positioning. Specifically, the bottom end of the positioning element 7 is provided with a positioning hole 71 for engaging with the positioning pin 96, and the middle position of the first movable seat 4 is provided with a third through hole 45. The positioning element 7 passes through the third through hole 45, that is, the positioning element 7 passes through the first movable seat 4. The bottom end of the positioning element 7 is located between the second movable seat 6 and the first movable seat 4. The center lines of the guide hole 61 and the positioning hole 71 are collinear and connected, so that after the end of the positioning pin 96 passes through the guide hole 61, the end of the positioning pin 96 can extend into the positioning hole 71.

[0039] Reference Figure 7 As shown, the test guide device also includes a connector 2, which is connected to one end of the connecting seat 1 near the first movable seat 4. The first guide 3 and the positioning member 7 both penetrate the connector 2, and the first elastic member 31 can also penetrate the connector 2. Specifically, the connector 2 is plate-shaped, and has a fourth through hole 21. The first guide 3 penetrates the fourth through hole 21, and the first elastic member 31 can also penetrate the fourth through hole 21. A fifth through hole 22 is located in the middle of the connector 2, and the positioning member 7 penetrates the fifth through hole 22.

[0040] The connector 2 is provided with a clearance hole 23 at one end near the first movable seat 4. The clearance hole 23 is a blind hole and is located on the extension line of the center line of the second guide 5. When the connector 1 moves toward the first movable seat 4, the clearance hole 23 is used to accommodate the end of the second stop 52 on the second guide 5, so that the overall length of the test guide device can be further reduced.

[0041] Reference Figures 8 to 10As shown, the test guide device also includes a fixing component 8, which is used to fix the positioning member 7. The fixing component 8 includes two clamping plates 84, which form a clamping space. The side wall of the positioning member 7 is provided with a slot, and the clamping plate 84 can engage with the slot. The clamping plate 84 is slidably connected to the connecting member 2. Specifically, the slot is arranged circumferentially along the side wall of the positioning member 7, so that the slot is annular. The opposite side of the clamping member is provided with a limiting groove, which can engage with the bottom of the slot. The fixing component 8 also includes a guide block 87 and a drive block 83. The bottom of the connecting seat 1 is provided with a receiving space 13. The guide block 87 and the drive block 83 are both located in the receiving space 13 and can move within the receiving space 13. The bottom of the clamping plate 84 is provided with a positioning block 85. The connecting member 2 is provided with a sliding groove 24. The positioning block 85 is slidably connected to the sliding groove 24, so that the clamping plates 84 can move in directions away from or close to each other, that is, the two clamping plates 84 can complete the clamping or opening action. Two guide blocks 87 are respectively connected to the top sides of two clamping plates 84. The guide blocks 87 are cylindrical. The drive block 83 is provided with an adjustment hole 86, which is an oblong hole. The guide block 87 is located in the adjustment hole 86 and is slidably connected to the adjustment hole 86. The included angle between the extending directions of the two adjustment holes 86 is an obtuse angle, so that the included angle between the moving paths of the two guide blocks 87 is also an obtuse angle. By pushing and pulling the drive block 83, the two clamping plates 84 can clamp or release the bottom of the slot.

[0042] The fixing assembly 8 also includes a support plate 82, an adjusting rod 88, and a handle 81. The support plate 82 is connected to the outer wall of the connecting seat 1. The end of the adjusting rod 88 is provided with a cylindrical locking block. The driving block 83 is provided with a locking slot. The side of the locking slot away from the positioning member 7 has an opening. The locking block is located inside the locking slot. The adjusting rod 88 is provided with a mounting groove along its circumference. The end of the opening is located inside the mounting groove, so that the adjusting rod 88 can rotate and drive the driving block 83 to move. The adjusting rod 88 is engaged with the driving block 83 by the locking block and the locking slot. The adjusting rod 88 passes through the support plate 82 and is threadedly connected to the support plate 82. At the same time, the adjusting rod 88 also passes through the side wall of the connecting seat 1. The handle 81 is connected to the end of the adjusting rod 88 away from the drive block 83. By rotating the handle 81, the position of the drive block 83 is adjusted, thereby controlling the clamping plate 84 to clamp or release the positioning member 7. When the two clamping plates 84 clamp the positioning member 7, the position of the positioning member 7 is fixed. When the two clamping plates 84 release the positioning member 7, the positioning member 7 can be disengaged from the connecting seat 1. The setting of the fixing component 8 facilitates the replacement of the positioning member 7.

[0043] During use, as the testing machine descends towards the probe station, the positioning pin 96 first extends into the guide hole 61 of the second movable seat 6. As the probe station continues to descend, the end of the positioning pin 96 extends into the positioning hole 71 of the positioning member 7. When the second movable seat 6 abuts against the probe seat 94, as the probe station continues to descend, the first movable seat 4 moves along the second guide member 5 toward the second movable seat 6 until the first movable seat 4 abuts against the second elastic member 51. Then, the connecting seat 1 moves along the first guide member 3 toward the first movable seat 4 until the bridging beam 95 extends into the slide, and the end of the positioning pin 96 engages with the bottom of the positioning hole 71 of the positioning member 7.

[0044] This utility model discloses a testing guide device. Through the guide hole 61 on the second movable seat 6, the positioning pin 96 extends into the guide hole 61 to guide the descent of the testing machine. This guides the movement of the testing machine before the bridging beam 95 extends into the slide, thereby improving the alignment accuracy between the bridging beam 95 and the slide. Through the arrangement of the first guide member 3 and the second guide member 5, after the second movable seat 6 abuts against the probe seat 94, the first movable seat 4 can move along the second guide member 5 towards the second movable seat 6, and the connecting seat 1 moves along the first guide member 3 towards the first movable seat 4. This gradually reduces the overall length of the testing guide device, preventing the bridging beam 95 from being unable to extend into the slide for testing due to the non-adjustable length of the testing guide device. The fixing component 8 facilitates the replacement of the positioning member 7.

[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A guiding device for testing, characterized in that, include: Connector; A positioning element, wherein the end of the positioning element is provided with a positioning hole; A first guide member is slidably connected to the connecting seat, and a first elastic member is sleeved on the first guide member, which can abut against the connecting seat. The first movable seat, one end of the first guide member is connected to the first movable seat, the positioning member passes through the first movable seat, the first elastic member is located between the connecting seat and the first movable seat, and the first elastic member can also abut against the first movable seat; The second guide member is slidably connected to the first movable seat and can pass through the first movable seat. The second guide member is fitted with a second elastic member, which can abut against the first movable seat. The second movable seat, the end of the positioning member is located between the second movable seat and the first movable seat, one end of the second guide member is connected to the second movable seat, the second movable seat is provided with a guide hole, the guide hole is connected to the positioning hole, and the second elastic member can also abut against the second movable seat.

2. The test guide device according to claim 1, characterized in that: The connecting seat is provided with a first through hole, and a first protrusion is provided in the first through hole. The first guide member passes through the first protrusion, and the end of the first elastic member can abut against the first protrusion.

3. The test guide device according to claim 2, characterized in that: One end of the first guide member is provided with a first stop block, which can abut against the first protrusion. The first protrusion is located between the first stop block and the first elastic member.

4. The test guide device according to claim 1, characterized in that: The first guide member has a first connecting block at its end. The width of the first connecting block is smaller than the width of the first guide member. The first movable seat has a first connecting hole, and the first connecting block is connected to the first connecting hole.

5. The test guide device according to claim 4, characterized in that: The first connecting hole has a first groove at one edge near the connecting seat, and the end of the first elastic member can abut against the bottom of the first groove.

6. The test guide device according to claim 1, characterized in that: It also includes a connector, which is connected to one end of the connecting seat near the first movable seat. The first guide and the positioning member both pass through the connector, and the first elastic member can pass through the connector.

7. The test guide device according to claim 6, characterized in that: The connector has a clearance hole at one end near the first movable seat, and the clearance hole is located on the extension line of the center line of the second guide.

8. The test guide device according to claim 6, characterized in that: It also includes a fixing component, which includes two clamping plates that form a clamping space between them. The side wall of the positioning member is provided with a slot, and the clamping plate can engage with the slot. The clamping plate is slidably connected to the connecting member.

9. The test guide device according to claim 8, characterized in that: The fixing component further includes a guide block and a drive block. The connecting seat includes a receiving space. The guide block and the drive block are both located in the receiving space. The clamping plate is provided with a positioning block. The connecting member is provided with a sliding groove. The positioning block is slidably connected to the sliding groove. The guide block is connected to the clamping plate. The drive block is provided with an adjustment hole. The guide block is slidably connected to the adjustment hole. The included angle between the movement paths of the two guide blocks is an obtuse angle.

10. The test guide device according to claim 9, characterized in that: The fixing assembly also includes a support plate, an adjusting rod, and a handle. The support plate is connected to the connecting seat, the end of the adjusting rod is engaged with the drive block, the adjusting rod passes through the support plate and is threadedly connected to the support plate, and the handle is connected to the end of the adjusting rod away from the drive block.

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