Connecting rod pressing jig

Abstract

The utility model relates to production manufacturing technical field discloses a connecting rod pressure tool. Wherein first clamping block and second clamping block are along the first direction interval setting, first clamping block is along the first direction sliding connection in support assembly, second clamping block is along the first direction and third direction sliding connection in support assembly, third clamping block is along the second direction sliding connection in support assembly, and first clamping block, second clamping block, third clamping block and support assembly form the mounting groove between, connecting rod is along the first direction sliding connection in support assembly, and connecting rod drive connection is in first clamping block, second clamping block and third clamping block, when the positive direction movement of connecting rod along the first direction, connecting rod can drive first clamping block, second clamping block and third clamping block synchronous far away from the mounting groove, when the reverse movement of connecting rod along the first direction, first clamping block, second clamping block and third clamping block can synchronous approach the mounting groove.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology, and in particular to a connecting rod clamping fixture. Background Technology

[0002] In the field of industrial manufacturing, jigs, as auxiliary tools, play a crucial role in the precise installation and reliable clamping of workpieces. Currently, using jigs to clamp workpieces is a common operating method. The jig is equipped with multiple clamping blocks, and the positions of these clamping blocks are adjusted to adapt to different workpieces and achieve clamping and fixation.

[0003] However, the existing clamping method has significant drawbacks. Operators must adjust the position of each clamping block individually, a process that is not only time-consuming and labor-intensive but also significantly increases manual operation time due to the numerous steps, reducing overall production efficiency. More importantly, when multiple clamping blocks are adjusted individually, the cumulative tolerance of the entire fixture is substantial because each block has its own adjustment tolerance. This reduces the positioning accuracy of the workpiece during clamping, affecting machining quality and potentially leading to product defects, increasing production costs, and failing to meet the demands of modern industrial production for efficient and high-precision machining.

[0004] Therefore, there is an urgent need for a connecting rod clamping fixture to solve the aforementioned problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a connecting rod clamping fixture that is simple to operate, improves production efficiency, achieves higher workpiece fixing accuracy, and improves product quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A connecting rod clamping fixture, comprising:

[0008] Support assembly;

[0009] A first clamping assembly, a second clamping assembly, and a third clamping assembly are provided. The first clamping assembly includes a first clamping block, the second clamping assembly includes a second clamping block, and the third clamping assembly includes a third clamping block. The first clamping block and the second clamping block are spaced apart along a first direction. The first clamping block is slidably connected to the bracket assembly along the first direction. The second clamping block is slidably connected to the bracket assembly along the first direction and a third direction. The third clamping block is slidably connected to the bracket assembly along a second direction. The first clamping block, the second clamping block, the third clamping block, and the bracket assembly form a mounting groove.

[0010] A connecting rod is slidably connected to the bracket assembly along a first direction. The connecting rod is driven to the first clamping block, the second clamping block, and the third clamping block. When the connecting rod moves in the forward direction of the first direction, it can drive the first clamping block, the second clamping block, and the third clamping block to move away from the mounting groove simultaneously. When the connecting rod moves in the reverse direction of the first direction, the first clamping block, the second clamping block, and the third clamping block can move closer to the mounting groove simultaneously.

[0011] As a preferred technical solution for a connecting rod clamping fixture, the connecting rod is provided with a first protrusion, which can push the first clamping block against the side near the mounting groove;

[0012] The first clamping assembly further includes a first elastic element, one end of which abuts against the side of the first clamping block away from the mounting groove, and the other end of which abuts against the bracket assembly.

[0013] As a preferred technical solution for a connecting rod clamping fixture, the connecting rod is provided with a guide slope, the height of the guide slope gradually increases in the opposite direction of the first direction, and the bottom end of the second clamping block is slidably connected to the guide slope;

[0014] The second clamping assembly further includes a tension spring, one end of which is connected to the second clamping block and the other end of which is connected to the bracket assembly. The tension of the tension spring can drive the second clamping block to descend along the third direction.

[0015] As a preferred technical solution for a connecting rod clamping fixture, a first bearing is provided at the bottom of the second clamping block, and the first bearing is rolledly connected to the guide inclined surface.

[0016] As a preferred technical solution for a connecting rod clamping fixture, the top surface of the connecting rod is provided with a first toothed groove;

[0017] The second clamping assembly further includes a push block and a gear. The push block is slidably connected to the bracket assembly along the first direction, and the gear is rotatably connected to the bracket assembly. The push block is provided with a second tooth groove. The first tooth groove and the second tooth groove are respectively meshed and connected to both sides of the gear. The push block can push the second clamping block against the side of the mounting groove.

[0018] The second clamping assembly further includes a second elastic element, one end of which abuts against the side of the second clamping block away from the mounting groove, and the other end of which abuts against the bracket assembly.

[0019] As a preferred technical solution for a connecting rod clamping fixture, the bracket assembly includes a limiting block, the limiting block is provided with a receiving groove, the receiving groove is provided with a first guide hole along the opposite sidewall of the second direction, and the two ends of the second clamping block are provided with guide posts, the guide posts being slidably connected to the first guide hole; the first guide hole includes a vertical section extending along a third direction and a transverse section extending along a first direction, the transverse section being connected to the top of the vertical section.

[0020] As a preferred technical solution for a connecting rod clamping fixture, the connection between the vertical section and the horizontal section is provided with a chamfered portion. When the guide post moves from the vertical section to the chamfered portion, the pushing block contacts the second clamping block.

[0021] As a preferred technical solution for a connecting rod clamping fixture, a first inclined surface is provided on the side of the connecting rod near the third clamping block, and a second inclined surface is provided on the side of the third clamping block near the connecting rod. The first inclined surface is slidably connected to the second inclined surface, and the first inclined surface is located on the side of the second inclined surface near the mounting groove.

[0022] The third clamping assembly further includes a third elastic element, one end of which abuts against the side of the third clamping block away from the mounting groove, and the other end of which abuts against the bracket assembly.

[0023] As a preferred technical solution for a connecting rod clamping fixture, it further includes a handle and a fourth elastic element. The handle is used to drive the connecting rod to move forward along the first direction, and the elastic force of the fourth elastic element can drive the connecting rod to move backward along the first direction.

[0024] As a preferred technical solution for a connecting rod clamping fixture, the top wall of the connecting rod is provided with a driving groove, the bracket assembly is provided with a second protrusion, the second protrusion extends into the driving groove, the fourth elastic member extends along a first direction and is located on the side of the second protrusion opposite to the first direction, one end of the fourth elastic member abuts against the second protrusion, and the other end abuts against the side wall of the driving groove.

[0025] The beneficial effects of this utility model are as follows:

[0026] This utility model provides a linkage clamping fixture. When a workpiece needs to be fixed, the driving linkage moves forward along a first direction, driving the first clamping block, the second clamping block, and the third clamping block to move synchronously away from the mounting slot, facilitating the installation of the workpiece in the mounting slot. After the workpiece is installed in the mounting slot, the driving linkage moves backward along the first direction to reset, causing the first clamping block, the second clamping block, and the third clamping block to move synchronously towards the mounting slot, clamping the workpiece in the mounting slot and thus fixing the workpiece. In use, this linkage clamping fixture only requires driving the linkage component to open and close the first, second, and third clamping blocks, enabling the orderly operation of multiple actions. It is simple to operate, improves production efficiency, and the linkage mechanism of the first, second, and third clamping blocks, compared to independent driving, results in smaller cumulative tolerances, higher workpiece fixing accuracy, and improved product quality. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the connecting rod clamping fixture provided in a specific embodiment of this utility model;

[0029] Figure 2 This is a cross-sectional view of the connecting rod clamping fixture provided in a specific embodiment of this utility model;

[0030] Figure 3 This is a partial structural schematic diagram of the connecting rod clamping fixture provided in a specific embodiment of this utility model;

[0031] Figure 4 This is an exploded view of the connecting rod clamping fixture provided in a specific embodiment of this utility model;

[0032] Figure 5 This is a schematic diagram of the connecting rod and handle provided in a specific embodiment of this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the second clamping block provided in a specific embodiment of this utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the third clamping block provided in a specific embodiment of this utility model.

[0035] The markings in the image are as follows:

[0036] 1. Bracket assembly; 11. Bracket body; 12. Base plate; 121. Clearance hole; 13. First baffle; 14. Second baffle; 15. Third baffle; 16. Limiting block; 161. Receiving groove; 162. First guide hole; 1621. Vertical section; 1622. Horizontal section; 1623. Chamfered part; 163. Second guide hole; 17. Second protrusion;

[0037] 2. First clamping assembly; 21. First clamping block; 22. First elastic element;

[0038] 3. Second clamping assembly; 31. Second clamping block; 311. Guide post; 32. Tension spring; 33. Push block; 331. Third bearing; 34. Gear; 35. Second elastic element; 36. First bearing; 37. Drive shaft;

[0039] 4. Third clamping assembly; 41. Third clamping block; 411. Second inclined plane; 42. Third elastic element;

[0040] 5. Connecting rod; 51. First protrusion; 52. Guide slope; 53. First tooth groove; 54. First slope; 55. Second bearing; 56. Drive groove;

[0041] 6. Handle; 61. First section; 611. Rounded corners; 62. Second section; 63. Third section; 7. Fourth elastic element. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] Currently, operators need to adjust the position of each clamping block individually. This process is not only time-consuming and labor-intensive, but also significantly increases manual operation time due to the numerous steps, reducing overall production efficiency. More importantly, when multiple clamping blocks are adjusted individually, the cumulative tolerance of the entire fixture is large because each block has its own adjustment tolerance. This reduces the positioning accuracy of the workpiece during clamping, affects processing quality, and may even lead to product defects, increasing production costs and failing to meet the demands of modern industrial production for efficient and high-precision machining.

[0047] To solve the above problems, such as Figures 1-5As shown, this embodiment provides a connecting rod pressing fixture, which includes a support assembly 1, a first clamping assembly 2, a second clamping assembly 3, a third clamping assembly 4 and a connecting rod 5. Specifically, the first clamping assembly 2 includes a first clamping block 21, the second clamping assembly 3 includes a second clamping block 31, and the third clamping assembly 4 includes a third clamping block 41. The first clamping block 21 and the second clamping block 31 are arranged at intervals along a first direction, the first clamping block 21 is slidably connected to the support assembly 1 along the first direction, the second clamping block 31 is slidably connected to the support assembly 1 along the first direction and a third direction, the third clamping block 41 is located on one side of the mounting groove along a second direction, the third clamping block 41 is slidably connected to the support assembly 1 along the second direction, and the mounting groove is enclosed among the first clamping block 21, the second clamping block 31, the third clamping block 41 and the support assembly 1; the connecting rod 5 is slidably connected to the support assembly 1 along the first direction, the connecting rod 5 is drivingly connected to the first clamping block 21, the second clamping block 31 and the third clamping block 41. When the connecting rod 5 moves forward along the first direction, the connecting rod 5 can drive the first clamping block 21, the second clamping block 31 and the third clamping block 41 to move away from the mounting groove synchronously; when the connecting rod 5 moves reversely along the first direction, the first clamping block 21, the second clamping block 31 and the third clamping block 41 can approach the mounting groove synchronously. In this embodiment, the first direction is X, the second direction is Y, the third direction is Z, and the first direction, the second direction and the third direction are mutually perpendicular. Figure 1 the arrow direction of X herein is the forward direction of the first direction.

[0048] When a workpiece needs to be fixed, the connecting rod 5 is driven to move forward along the first direction, and the connecting rod 5 drives the first clamping block 21, the second clamping block 31 and the third clamping block 41 to move away from the mounting groove synchronously, which facilitates the installation of the workpiece into the mounting groove. After the workpiece is installed in the mounting groove, the connecting rod 5 is driven to move reversely along the first direction for resetting, the first clamping block 21, the second clamping block 31 and the third clamping block 41 approach the mounting groove synchronously, and the first clamping block 21, the second clamping block 31 and the third clamping block 41 clamp the workpiece in the mounting groove, thereby realizing the fixation of the workpiece. When the connecting rod pressing fixture is in use, only one component, the connecting rod 5, needs to be driven to realize the opening and closing of the first clamping block 21, the second clamping block 31 and the third clamping block 41, realize the ordered operation of multiple actions, which is simple to operate and improves production efficiency. Moreover, compared with the independent driving mode, the linkage mode of the first clamping block 21, the second clamping block 31 and the third clamping block 41 has smaller cumulative tolerance, higher fixing precision of the workpiece and improves product quality.

[0049] In this embodiment, the top of the first clamping block 21, the second clamping block 31, and the third clamping block 41 are all provided with a stop arm extending toward the mounting groove. After the first clamping block 21, the second clamping block 31, and the third clamping block 41 clamp the workpiece, the stop arm and the bracket assembly 1 restrict the displacement of the workpiece along a third direction, the first clamping block 21 and the second clamping block 31 restrict the displacement of the workpiece along a first direction, and the third clamping block 41 and the bracket assembly 1 restrict the displacement of the workpiece along a second direction.

[0050] In this embodiment, the bracket assembly 1 includes a bracket body 11 and a base plate 12. The bracket body 11 is mounted on the base plate 12, and a first sliding groove is formed between the bracket body 11 and the base plate 12. The connecting rod 5 is slidably connected to the first sliding groove.

[0051] Furthermore, the connecting rod 5 is provided with a first protrusion 51, which can push the first clamping block 21 against the side near the mounting groove; the first clamping assembly 2 also includes a first elastic element 22, one end of which abuts against the side of the first clamping block 21 away from the mounting groove, and the other end abuts against the bracket assembly 1. When the connecting rod 5 moves forward in the first direction, the first protrusion 51 can push the side of the first clamping block 21 away from the mounting groove and compress the first elastic element 22, so that the first clamping block 21 moves away from the mounting groove. When the connecting rod 5 moves backward in the first direction to reset, the first elastic element 22 drives the first clamping block 21 closer to the mounting groove.

[0052] In this embodiment, the bracket body 11 is provided with a second sliding groove, the first clamping block 21 is slidably connected in the second sliding groove, and a receiving groove 161 is provided between the bottom of the first clamping block 21 and the side near the mounting groove and the bracket body 11, and the first protrusion 51 extends into the receiving groove 161.

[0053] The bracket assembly 1 also includes a first baffle 13, which is connected to the bracket body 11. The first elastic element 22 is a spring, which passes through the side wall of the second slide groove, with one end abutting against the first baffle 13 and the other end abutting against the first clamping block 21.

[0054] like Figures 1-7As shown, the connecting rod 5 is further provided with a guide slope 52, the height of which gradually increases in the reverse direction of the first direction. The bottom end of the second clamping block 31 is slidably connected to the guide slope 52. The second clamping assembly 3 also includes a tension spring 32, one end of which is connected to the second clamping block 31 and the other end to the bracket assembly 1. The tension of the tension spring 32 can drive the second clamping block 31 to descend in the third direction. When the connecting rod 5 moves in the forward direction of the first direction, the guide slope 52 drives the bottom of the first clamping block 21 to rise, realizing the second clamping block 31 rising in the third direction. When the connecting rod 5 moves in the reverse direction of the first direction to reset, the third clamping block 41 descends along the guide slope 52 by the tension of the tension spring 32 and its own weight, realizing the second clamping block 31 descending in the third direction.

[0055] Preferably, a first bearing 36 is provided at the bottom of the second clamping block 31, and the first bearing 36 is rolledly connected to the guide slope 52, which reduces wear between the second clamping block 31 and the guide slope 52.

[0056] Preferably, the top surface of the connecting rod 5 is provided with a first toothed groove 53; the second clamping assembly 3 further includes a push block 33 and a gear 34, the push block 33 is slidably connected to the bracket assembly 1 in a first direction, the gear 34 is rotatably connected to the bracket assembly 1, the push block 33 is provided with a second toothed groove, the first toothed groove 53 and the second toothed groove are respectively meshed and connected to both sides of the gear 34, the push block 33 can push the second clamping block 31 to the side near the mounting groove; the second clamping assembly 3 further includes a second elastic member 35, one end of the second elastic member 35 abuts against the side of the second clamping block 31 away from the mounting groove, and the other end abuts against the bracket assembly 1. When the connecting rod 5 moves forward in the first direction, the first tooth groove 53 drives the gear 34 to rotate, and the gear 34 drives the push block 33 to move in the opposite direction in the first direction, so that the push block 33 pushes the second clamping block 31 away from the mounting groove in the first direction; when the connecting rod 5 moves in the opposite direction in the first direction to reset, the first tooth groove 53 drives the gear 34 to rotate, and the gear 34 drives the push block 33 to move forward in the first direction, and the second elastic element 35 pulls the second clamping block 31 closer to the mounting groove in the first direction.

[0057] The bracket assembly 1 includes a limiting block 16, which is provided with a receiving groove 161. The receiving groove 161 is provided with a first guide hole 162 on the sidewall opposite to each other in the second direction. The two ends of the second clamping block 31 are provided with guide posts 311, which are slidably connected to the first guide hole 162. The first guide hole 162 includes a vertical section 1621 extending in the third direction and a horizontal section 1622 extending in the first direction. The horizontal section 1622 is connected to the top of the vertical section 1621. The first guide hole 162 can guide the guide post 311 and improve the movement accuracy of the second clamping block 31. When the guide post 311 moves along the vertical section 1621, the bottom of the second clamping block 31 is slidably connected to the guide slope 52, and the push block 33 does not contact the second clamping block 31. When the guide post 311 moves along the horizontal section 1622, the push block 33 contacts the second clamping block 31, and the bottom of the second clamping block 31 disengages from the guide slope 52.

[0058] More preferably, the connection between the vertical section 1621 and the horizontal section 1622 is provided with a chamfered portion 1623. When the connecting rod 5 moves in the positive direction of the first direction, when the guide post 311 moves from the vertical section 1621 to the chamfered portion 1623, the push block 33 contacts the second clamping block 31. The connecting rod 5 continues to move, and the push block 33 and the guide inclined surface 52 work together on the second clamping block 31. The guide post 311 of the second clamping block 31 can slide in the chamfered portion 1623. The second clamping block 31 moves simultaneously in the first direction and the third direction, reducing the stroke of the push block 33, thereby reducing the outer diameter of the connecting rod clamping fixture in the first direction.

[0059] In this embodiment, a drive shaft 37 is provided at the bottom of the second clamping block 31, and a first bearing 36 is provided on the drive shaft 37. A second guide hole 163 is also provided on the side wall of the receiving groove 161 along the second direction. The second guide hole 163 is located below the first guide hole 162 and has the same shape. The drive shaft 37 is rotatably connected to the second clamping block 31, and the two ends of the drive shaft 37 slide through the second guide hole 163, which further improves the moving accuracy of the second clamping block 31 and improves the stability of the second clamping block 31.

[0060] The bracket assembly 1 also includes a second baffle 14, which is connected to the bracket body 11. The second elastic element 35 is a spring, which passes through the side wall of the receiving groove 161, with one end abutting against the second baffle 14 and the other end abutting against the second clamping block 31.

[0061] In this embodiment, the push block 33 is provided with third bearings 331 on both sides along the second direction, the support body is provided with a third sliding groove, and the third sliding groove is provided with limit grooves on the two side walls along the second direction. The third bearings 331 on both sides of the push block 33 are respectively rolled to the two limit grooves, providing guidance for the push block 33 and reducing wear.

[0062] Furthermore, a first inclined surface 54 is provided on the side of the connecting rod 5 near the third clamping block 41, and a second inclined surface 411 is provided on the side of the third clamping block 41 near the connecting rod 5. The first inclined surface 54 is slidably connected to the second inclined surface 411 and is located on the side of the second inclined surface 411 near the mounting groove. The third clamping assembly 4 also includes a third elastic element 42. One end of the third elastic element 42 abuts against the side of the third clamping block 41 away from the mounting groove, and the other end abuts against the bracket assembly 1.

[0063] Preferably, the first inclined surface 54 is provided with a second bearing 55, which is rolledly connected to the second inclined surface 411, thereby reducing wear between the third clamping block 41 and the first inclined surface 54.

[0064] When the connecting rod 5 moves in the positive direction along the first direction, the first inclined surface 54 drives the second inclined surface 411 to move away from the connecting rod 5 and compress the third elastic element 42, so that the third clamping block 41 moves away from the mounting groove; when the connecting rod 5 moves in the reverse direction along the first direction to reset, the third elastic element 42 drives the third clamping block 41 to move closer to the mounting groove.

[0065] In this embodiment, the bracket assembly 1 further includes a third baffle 15, which is connected to the bracket body 11. The third baffle 15 and the bracket body 11 form a fourth sliding groove. The third clamping block 41 is slidably connected in the fourth sliding groove. The third elastic element 42 is a spring, with one end of the third elastic element 42 abutting against the third baffle 15 and the other end abutting against the third clamping block 41.

[0066] Furthermore, the connecting rod clamping fixture also includes a handle 6 and a fourth elastic element 7. The handle 6 is used to drive the connecting rod 5 to move forward in the first direction, and the elastic force of the fourth elastic element 7 can drive the connecting rod 5 to move in the opposite direction in the first direction. The operator can drive the connecting rod 5 to move forward in the first direction by operating the handle 6. When it is necessary to move the connecting rod 5 in the opposite direction in the first direction, the handle 6 is reset, and the elastic force of the fourth elastic element 7 drives the connecting rod 5 to move in the opposite direction in the first direction, improving the ease of operation.

[0067] Specifically, the handle 6 includes a first segment 61, a second segment 62, and a third segment 63 connected in sequence. The first segment 61 extends along a third direction, the second segment 62 extends along a second direction, and the third segment 63 extends along a first direction. The base plate 12 is provided with a clearance hole 121. The first segment 61 extends into the clearance hole 121. The end of the first segment 61 is provided with a rounded corner 611. The end of the connecting rod 5 in the positive direction of the first direction is hinged to the end of the first segment 61 near the second segment 62. When the operator pulls the third segment 63 upward, the first segment 61 interferes with the side wall of the clearance hole 121 through the lever principle. The rounded corner 611 of the first segment 61 moves close to the side wall of the clearance hole 121 and drives the end of the first segment 61 near the second segment 62 to move in the positive direction of the first direction, thereby driving the connecting rod 5 to move in the positive direction of the first direction.

[0068] Furthermore, the top wall of the connecting rod 5 is provided with a drive groove 56, and the bracket assembly 1 is provided with a second protrusion 17. The second protrusion 17 extends into the drive groove 56, and the fourth elastic member 7 extends along the first direction and is located on the side of the second protrusion 17 opposite to the first direction. One end of the fourth elastic member 7 abuts against the second protrusion 17, and the other end abuts against the side wall of the drive groove 56. When the operator pushes the third section 63 downward to reset, the elastic force of the fourth elastic member 7 drives the side wall of the drive groove 56 to move in the opposite direction along the first direction, thereby realizing the reverse movement and reset of the drive connecting rod 5 along the first direction.

[0069] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A connecting rod pressing jig characterized by comprising: include: Support assembly (1); The first clamping assembly (2), the second clamping assembly (3), and the third clamping assembly (4) are provided. The first clamping assembly (2) includes a first clamping block (21), the second clamping assembly (3) includes a second clamping block (31), and the third clamping assembly (4) includes a third clamping block (41). The first clamping block (21) and the second clamping block (31) are spaced apart along a first direction. The first clamping block (21) is slidably connected to the bracket assembly (1) along the first direction. The second clamping block (31) is slidably connected to the bracket assembly (1) along the first direction and a third direction. The third clamping block (41) is slidably connected to the bracket assembly (1) along a second direction. The first clamping block (21), the second clamping block (31), the third clamping block (41), and the bracket assembly (1) form an installation groove. A connecting rod (5) is slidably connected to the bracket assembly (1) along a first direction. The connecting rod (5) is driven to connect to the first clamping block (21), the second clamping block (31), and the third clamping block (41). When the connecting rod (5) moves in the positive direction along the first direction, the connecting rod (5) can drive the first clamping block (21), the second clamping block (31), and the third clamping block (41) to move away from the mounting groove simultaneously. When the connecting rod (5) moves in the reverse direction along the first direction, the first clamping block (21), the second clamping block (31), and the third clamping block (41) can move closer to the mounting groove simultaneously.

2. The connecting rod hold-down jig according to claim 1, characterized by The connecting rod (5) is provided with a first protrusion (51), which can push the first clamping block (21) against the side of the mounting groove. The first clamping assembly (2) further includes a first elastic element (22), one end of which abuts against the side of the first clamping block (21) away from the mounting groove, and the other end abuts against the bracket assembly (1).

3. The connecting rod clamping fixture according to claim 1, characterized in that, The connecting rod (5) is provided with a guide slope (52), the height of the guide slope (52) gradually increases in the opposite direction of the first direction, and the bottom end of the second clamping block (31) is slidably connected to the guide slope (52). The second clamping assembly (3) further includes a tension spring (32), one end of which is connected to the second clamping block (31) and the other end is connected to the bracket assembly (1). The tension of the tension spring (32) can drive the second clamping block (31) to descend along the third direction.

4. The connecting rod clamping fixture according to claim 3, characterized in that, The bottom of the second clamping block (31) is provided with a first bearing (36), which is rolledly connected to the guide slope (52).

5. The connecting rod clamping fixture according to claim 3, characterized in that, The top surface of the connecting rod (5) is provided with a first tooth groove (53); The second clamping assembly (3) further includes a push block (33) and a gear (34). The push block (33) is slidably connected to the bracket assembly (1) along the first direction. The gear (34) is rotatably connected to the bracket assembly (1). The push block (33) is provided with a second tooth groove. The first tooth groove (53) and the second tooth groove are respectively meshed and connected to both sides of the gear (34). The push block (33) can push the second clamping block (31) to the side near the mounting groove. The second clamping assembly (3) further includes a second elastic element (35), one end of which abuts against the side of the second clamping block (31) away from the mounting groove, and the other end abuts against the bracket assembly (1).

6. The connecting rod clamping fixture according to claim 5, characterized in that, The bracket assembly (1) includes a limiting block (16), the limiting block (16) is provided with a receiving groove (161), the receiving groove (161) is provided with a first guide hole (162) on the side wall opposite to the second direction, the second clamping block (31) is provided with guide posts (311) at both ends, the guide posts (311) are slidably connected to the first guide hole (162); the first guide hole (162) includes a vertical section (1621) extending along a third direction and a horizontal section (1622) extending along a first direction, the horizontal section (1622) is connected to the top of the vertical section (1621).

7. The connecting rod clamping fixture according to claim 6, characterized in that, The connection between the vertical section (1621) and the horizontal section (1622) is provided with a chamfered portion (1623). When the guide post (311) moves from the vertical section (1621) to the chamfered portion (1623), the pushing block (33) contacts the second clamping block (31).

8. The connecting rod clamping fixture according to claim 1, characterized in that, The connecting rod (5) has a first inclined surface (54) on the side near the third clamping block (41), and the third clamping block (41) has a second inclined surface (411) on the side near the connecting rod (5). The first inclined surface (54) is slidably connected to the second inclined surface (411), and the first inclined surface (54) is located on the side of the second inclined surface (411) near the mounting groove. The third clamping assembly (4) further includes a third elastic element (42), one end of which abuts against the side of the third clamping block (41) away from the mounting groove, and the other end abuts against the bracket assembly (1).

9. The connecting rod clamping fixture according to any one of claims 1-8, characterized in that, It also includes a handle (6) and a fourth elastic element (7), the handle (6) being used to drive the connecting rod (5) to move forward along the first direction, and the elastic force of the fourth elastic element (7) being able to drive the connecting rod (5) to move backward along the first direction.

10. The connecting rod clamping fixture according to claim 9, characterized in that, The top wall of the connecting rod (5) is provided with a drive groove (56), the bracket assembly (1) is provided with a second protrusion (17), the second protrusion (17) extends into the drive groove (56), the fourth elastic member (7) extends along the first direction and is located on the side of the second protrusion (17) opposite to the first direction, one end of the fourth elastic member (7) abuts against the second protrusion (17), and the other end abuts against the side wall of the drive groove (56).

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