A clamp assembly with high adaptability

Abstract

The utility model relates to the technical field of mechanical clamps, and in particular to a clamp assembly with high adaptability, comprising a mounting frame, a clamp arm mechanism arranged on the mounting frame, and a driving source for driving the clamp arm mechanism to perform opening and closing movements, the clamp arm mechanism comprising at least one group of first clamp arms and second clamp arms which are arranged on the mounting frame and are symmetrically distributed, the first clamp arm and the second clamp arm are hinged on the mounting frame, a linkage structure is provided between the driving source and the first clamp arm and the second clamp arm, and the driving source can cause the first clamp arm and the second clamp arm to perform relative reciprocating swinging movements through the linkage structure. The beneficial effects of the utility model are: providing a clamp assembly with high adaptability which can adapt to workpieces of various specifications and improve adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical clamps, in particular to a clamp assembly with high adaptability. Background Art

[0002] Forged parts are widely used in industrial applications. At present, there is still a lot of manual labor in the workshops of forging production enterprises, which leads to low production efficiency and potential safety hazards. Therefore, automated production has been promoted. The applicant has applied for a robot upper and lower dual-purpose pliers with a publication number of "CN113307017A", which includes a mounting frame and a clamping arm mechanism arranged in the mounting frame and a driving mechanism for driving the clamping arm mechanism to open and close. The clamping arm mechanism includes a first left clamping arm and a first right clamping arm arranged on one side of the mounting frame and symmetrically distributed. The clamping arm mechanism also includes a second left clamping arm and a second right clamping arm arranged on the other side of the mounting frame and symmetrically distributed. One end of the driving mechanism is simultaneously linked with the first left clamping arm and the second right clamping arm, and the other end of the driving mechanism is simultaneously linked with the second left clamping arm and the second right clamping arm. The first left clamping arm and the first right clamping arm can perform relative reciprocating opening and closing movements under the drive of the driving mechanism, and the second left clamping arm and the second right clamping arm can perform relative reciprocating opening and closing movements under the drive of the driving mechanism. The mounting frame is linked with a flange mechanism.

[0003] However, the right clamp arm and the left clamp arm in the above document are installed on the mounting frame, so that the driving mechanism can only cause the left and right clamp arms to perform reciprocating opening and closing movements along the mounting frame, resulting in a short stroke between the clamp arms, which cannot adapt to large-sized workpieces for forging. The clamp needs to be replaced for forging, resulting in the problem of low adaptability. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a clamp assembly with high adaptability that can adapt to workpieces of various specifications and improve adaptability in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly adaptable clamp assembly, comprising a mounting frame and a clamp arm mechanism arranged on the mounting frame and a driving source for driving the clamp arm mechanism to open and close, the clamp arm mechanism comprising at least one group of first clamp arms and second clamp arms arranged on the mounting frame and symmetrically distributed, characterized in that: the first clamp arm and the second clamp arm are hinged on the mounting frame, a linkage structure is provided between the driving source and the first clamp arm and the second clamp arm, and the driving source can cause the first clamp arm and the second clamp arm to perform relative reciprocating swinging motion through the linkage structure.

[0006] The above-mentioned technical solution is adopted: compared with the prior art that the left and right clamp arms are installed in the mounting frame, so that the driving mechanism can only cause the left and right clamp arms to perform reciprocating opening and closing movements along the mounting frame, which has the limitation, the utility model hinges the first clamp arm and the second clamp arm on the mounting frame, and the driving source causes the first and second clamp arms to perform relative reciprocating swinging movements through a linkage structure. Compared with the prior art, the swinging angle of the first and second clamp arms becomes larger, so that the stroke is greatly improved, and it can adapt to large-sized workpieces, thereby improving adaptability.

[0007] A further configuration of the utility model is that the linkage structure includes a rack linked to the output end of the driving source and a driving gear meshed with the rack, a first driven gear and a second driven gear are meshed on both sides of the driving gear, a first gear shaft is provided on the first driven gear and the second driven gear through a first through hole, and the ends of each first gear shaft are respectively connected to the corresponding first clamp arm and second clamp arm.

[0008] The above technical solution is adopted: during use, the driving source is started to drive the rack to move, and the driving gear is linked to rotate, thereby driving the first and second driven gears on both sides of the driving gear to rotate, and further driving the first gear shaft to rotate, prompting the corresponding first clamping arms and second clamping arms on each first gear shaft to swing, thereby realizing the opening and closing of the first and second clamping arms to complete the clamping of the workpiece, and this structure greatly improves the movement stroke between the first and second clamping arms, and can adapt to large-sized workpieces.

[0009] A further arrangement of the utility model is: the mounting frame includes a first mounting seat for mounting a driving source and a second mounting seat connected to the top of the first mounting seat and located above the rack, the second mounting seat is provided with a first mounting hole for mounting the first gear shaft, the second mounting seat is provided with a second mounting hole between the first mounting holes, the second mounting hole is provided with a second gear shaft, and the driving gear is sleeved on the second gear shaft.

[0010] The above technical solution is adopted: the second mounting seat is located above the rack, and the first mounting hole and the second mounting hole are arranged on the second mounting seat, so that the first and second gear shafts and the driving gear and the driven gear can be easily installed.

[0011] A further configuration of the utility model is that a baffle is provided on one end of the first mounting seat close to the rack, and a through hole is provided on the baffle for the end of the rack to pass through.

[0012] The above technical solution is adopted: through the setting of the baffle, a limit block is provided on the rack between the tooth part and the end part, and the diameter of the limit block is larger than the diameter of the perforation, which plays a certain limiting role. At the same time, the perforation is set. When the driving source drives the rack to move, the end part of the rack can pass through the perforation, so that the baffle will not affect the normal movement of the rack.

[0013] A further configuration of the utility model is: the driving source is a hydraulic cylinder, a first mounting block is provided at the bottom of the hydraulic cylinder, a cylinder seat for connecting the first mounting block is provided on one end of the mounting frame close to the hydraulic cylinder, two second mounting blocks arranged opposite to each other are provided on the cylinder seat, a mounting groove is formed between the second mounting blocks, the first mounting block is located in the mounting groove, a first connecting hole is provided on the first mounting block, and a second connecting hole corresponding to the first connecting hole is provided on the second mounting block.

[0014] The above technical solution is adopted: the response speed is improved by the setting of the hydraulic cylinder, and the thrust can be quickly generated on the rack; at the same time, the installation of the hydraulic cylinder is realized by the setting of the first mounting block and the cylinder seat. It only needs to place the first mounting block in the mounting groove, align the first connecting hole with the second connecting hole, and then connect them through fasteners to complete the installation. The structure is simple and convenient for the staff to assemble or disassemble. The preferred mounting frame is provided with a third connecting hole corresponding to the first and second connecting holes, which is convenient for the fasteners to be assembled.

[0015] The utility model is further configured as follows: a flange is detachably connected to a side of the oil cylinder seat away from the second mounting block, and a plurality of groups of evenly distributed detachable positioning mounting holes are provided on the connecting end surfaces of the oil cylinder seat and the flange.

[0016] The above technical solution is adopted: the flange is mainly used to assemble and link the clamp assembly with the robot equipment, and a detachable positioning mounting hole is further provided on the connecting end surface of the flange and the cylinder seat, so as to facilitate the adjustment of the installation direction of the dual-purpose pliers according to actual conditions, and the installation can be completed by fasteners between the detachable positioning mounting holes.

[0017] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 This is an exploded view of the utility model.

[0020] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 This is an exploded view of the hydraulic cylinder and cylinder seat of the utility model.

[0022] Figure 5 It is a schematic diagram of the internal structure of the utility model.

[0023] Explanation of reference numerals: mounting frame 1, first mounting seat 11, baffle 111, through hole 111a, cylinder seat 112, second mounting block 112a, mounting groove 112b, second connecting hole 112c, flange 112d, detachable positioning mounting hole 112e, second mounting seat 12, first mounting hole 121, second mounting hole 122, clamping arm mechanism 2, first clamping arm 21, second clamping arm 22, driving source (hydraulic cylinder) 3, first mounting block 31, first connecting hole 311, linkage structure 4, rack 41, limiting portion 411, driving gear 42, first driven gear 43, second driven gear 44, first gear shaft 45, second gear shaft 46. DETAILED DESCRIPTION

[0024] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0025] like Figure 1-5 A highly adaptable clamp assembly shown in the figure includes a mounting frame 1, a clamp arm mechanism 21 arranged on the mounting frame 1, and a driving source 3 for driving the clamp arm mechanism 21 to open and close. The clamp arm mechanism 21 includes at least one group of first clamp arms 21 and second clamp arms 22 which are arranged on the mounting frame 1 and are symmetrically distributed. The first clamp arm 21 and the second clamp arm 22 are hinged to the mounting frame 1. A linkage structure 4 is provided between the driving source 3 and the first clamp arm 21 and the second clamp arm 22. The driving source 3 can cause the first clamp arm 21 and the second clamp arm 22 to perform relative reciprocating swinging motion through the linkage structure 4.

[0026] like Figure 2-3 The linkage structure 4 shown includes a rack 41 linked to the output end of the driving source 3 and a driving gear 42 meshed with the rack 41, and a first driven gear 43 and a second driven gear 44 are meshed on both sides of the driving gear 42. A first gear shaft 45 is provided on the first driven gear 43 and the second driven gear 44 through a first through hole, and the ends of each first gear shaft 45 are respectively connected to the corresponding first clamping arm 21 and the second clamping arm 22, and the first clamping arm 21 is connected to the end of the first gear shaft 45 on the first driven gear 43 through a second through hole, and the second clamping arm 22 is connected to the end of the first gear shaft 45 on the second driven gear 44 through a third through hole.

[0027] like Figure 2The mounting frame 1 shown includes a first mounting seat 11 for mounting the driving source 3 and a second mounting seat 12 connected to the top of the first mounting seat 11 and located above the rack 41. The second mounting seat 12 is provided with a first mounting hole 121 for mounting the first gear shaft 45. The second mounting seat 12 is provided with a second mounting hole 122 between the first mounting holes 121. The second mounting hole 122 is provided with a second gear shaft 46. The driving gear 42 is sleeved on the second gear shaft 46. A baffle 111 is provided on one end of the first mounting seat 11 close to the rack 41. The baffle 111 is provided with a through hole 111a through which the end of the rack 41 can pass. A limit block 411 is provided between the tooth portion and the end of the rack 41. The diameter of the limit block 411 is larger than the diameter of the through hole 111a, which can play a limiting role.

[0028] like Figure 2 , 4 The driving source 3 shown is a hydraulic cylinder 3, a first mounting block 31 is provided at the bottom of the hydraulic cylinder 3, a cylinder seat 112 for connecting the first mounting block 31 is provided on one end of the mounting frame 1 close to the hydraulic cylinder 3, two second mounting blocks 112a arranged opposite to each other are provided on the cylinder seat 112, a mounting groove 112b is formed between the second mounting blocks 112a, the first mounting block 31 is located in the mounting groove 112b, a first connecting hole 311 is provided on the first mounting block 31, and a second connecting hole 112c corresponding to the first connecting hole 311 is provided on the second mounting block 112a; Figure 4 The cylinder seat 112 shown is detachably connected to a flange 112d on one side away from the second mounting block 112a, and a plurality of evenly distributed detachable positioning mounting holes 112e are provided on the connecting end surfaces of the cylinder seat 112 and the flange 112d.

[0029] During use, the present invention is compared with the prior art that the left and right clamp arms are installed in the mounting frame 1, so that the driving mechanism can only cause the left and right clamp arms to perform reciprocating opening and closing movements along the mounting frame 1, which has the limitation that the present invention hinges the first clamp arm 21 and the second clamp arm 22 on the mounting frame 1, and the hydraulic cylinder 3 drives the rack 41 to rotate the driving gear 42, thereby driving the first and second driven gears on both sides of the driving gear 42 to rotate, and further drives the first gear shaft 45 to rotate, so that the corresponding first clamp arm 21 and second clamp arm 22 on each first gear shaft 45 perform relative swinging movements, thereby realizing the opening and closing of the first and second clamp arms to complete the clamping of the workpiece, and this structure greatly improves the movement stroke between the first and second clamp arms, and can adapt to large-sized workpieces.

Claims

1. A clamp assembly with high adaptability, comprising a mounting frame, a clamp arm mechanism arranged on the mounting frame, and a driving source for driving the clamp arm mechanism to open and close, wherein the clamp arm mechanism comprises at least one set of first clamp arms and second clamp arms arranged on the mounting frame and symmetrically distributed, characterized in that: The first clamp arm and the second clamp arm are hinged on the mounting frame, and a linkage structure is provided between the driving source and the first clamp arm and the second clamp arm. The driving source can cause the first clamp arm and the second clamp arm to perform relative reciprocating swinging motion through the linkage structure.

2. A clamp assembly with high adaptability according to claim 1, characterized in that: The linkage structure includes a rack linked to the output end of the driving source and a driving gear meshed with the rack, a first driven gear and a second driven gear are meshed on both sides of the driving gear, a first gear shaft is provided on the first driven gear and the second driven gear through a first through hole, and the ends of each first gear shaft are respectively connected to the corresponding first clamp arm and second clamp arm.

3. A clamp assembly with high adaptability according to claim 2, characterized in that: The mounting frame includes a first mounting seat for mounting a driving source and a second mounting seat connected to the top of the first mounting seat and located above the rack, the second mounting seat is provided with a first mounting hole for mounting a first gear shaft, the second mounting seat is provided with a second mounting hole between the first mounting holes, the second mounting hole is provided with a second gear shaft, and the driving gear is sleeved on the second gear shaft.

4. A clamp assembly with high adaptability according to claim 3, characterized in that: A baffle is provided on one end of the first mounting seat close to the rack, and a through hole is provided on the baffle for the end of the rack to pass through.

5. A clamp assembly with high adaptability according to any one of claims 1 to 4, characterized in that: The driving source is a hydraulic cylinder, a first mounting block is provided at the bottom of the hydraulic cylinder, a cylinder seat for connecting the first mounting block is provided on one end of the mounting frame close to the hydraulic cylinder, two second mounting blocks arranged opposite to each other are provided on the cylinder seat, a mounting groove is formed between the second mounting blocks, the first mounting block is located in the mounting groove, a first connecting hole is provided on the first mounting block, and a second connecting hole corresponding to the first connecting hole is provided on the second mounting block.

6. A clamp assembly with high adaptability according to claim 5, characterized in that: A flange is detachably connected to the side of the oil cylinder seat away from the second mounting block, and a plurality of groups of evenly distributed detachable positioning mounting holes are arranged on the connecting end surfaces of the oil cylinder seat and the flange.

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