A screw riveting machine

Abstract

The utility model discloses a screw riveting machine, including a frame and a riveting drive cylinder, a clamping seat is arranged on the outer wall of one side of the frame, a first clamping mechanism and an auxiliary clamping mechanism are arranged on the clamping seat, the auxiliary clamping mechanism includes an auxiliary clamping rod and an auxiliary driving mechanism, the auxiliary clamping rod is rotatably connected to the clamping seat, the auxiliary clamping rod maintains a transmission connection with the auxiliary driving mechanism, the auxiliary clamping rod is driven to rotate by the auxiliary driving mechanism, and abuts with the clamping seat, so that the screw and the clamping seat maintain a fixed connection. The screw riveting machine provided by the utility model drives the auxiliary clamping rod to rotate by the auxiliary driving mechanism of the auxiliary clamping mechanism, and abuts with the screw, thereby preliminarily positioning the screw, and finally fixing the screw and the clamping seat by the first clamping mechanism, after the screw is preliminarily positioned and finally fixed, it can be more accurately and securely fixed inside the clamping seat, can prevent the screw from being misplaced during the clamping process, and can improve the processing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of linear drive processing equipment, in particular to a screw riveting machine. Background Art

[0002] During the drive production process, it is necessary to sleeve the bearing and the worm gear on the end of the screw rod, and fix the bearing and the worm gear on the screw rod by riveting. Therefore, riveting equipment is needed in the screw rod processing process.

[0003] According to the invention patent application with publication number: CN102166613B and publication date of 2012-08-22, a bearing riveting machine is disclosed, including: a frame, on which two column guide rods are arranged; a baffle mounted on the top of the column guide rods, and a driving device arranged on the baffle; a screw mechanism connected to the driving device, and the screw of the screw mechanism is connected to the driving device; an upper pressing sliding plate connected to the screw nut of the screw mechanism, and the two ends of the upper pressing sliding plate are slidably mounted on the two column guide rods respectively; a lower pressing sliding plate at both ends is slidably mounted on the two column guide rods respectively and is located at the lower end of the upper pressing sliding plate, and a clamp is provided on the lower pressing sliding plate, and a cylindrical push rod is provided on the upper pressing sliding plate; a press lower panel arranged at the bottom of the two column guide rods; a pressure sensor arranged between the press lower panel and the lower pressing sliding plate. Its main technical effect is: using precision electric cylinder (driving device and screw mechanism) as the driving force for pressing the upper sliding plate downward, the driving device outputs torque to drive the screw to rotate, thereby driving the screw nut and the upper sliding plate connected to the screw nut to move up and down. Every time the screw rotates one circle, the screw nut and the upper sliding plate move up or down one pitch. Due to the high stroke accuracy of the screw, the riveting stroke accuracy of this equipment is improved, and the riveting stroke of the equipment can be accurately controlled by controlling the number of revolutions of the driving device. By changing the bearing riveting method, the pull-out force of the rocker arm bearing after riveting can reach 3500N, which completely ensures that the rocker arm bearing will not fall off during use and eliminates after-sales quality problems.

[0004] In the prior art, a screw riveting machine is used for riveting. During the riveting process, the screw is directly fixed by clamping in the riveting machine, which is easy to be dislocated. Therefore, a screw riveting machine is proposed to solve the problem that in the prior art, the screw is directly fixed by clamping in the riveting machine, which is easy to be dislocated. Utility Model Content

[0005] The utility model aims to provide a screw riveting machine, aiming to solve the problem in the prior art that the screw is directly fixed by clamping in the riveting machine and is easy to be misplaced.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A screw riveting machine comprises a frame and a riveting drive cylinder arranged at one end of the frame, a clamping seat is arranged on the outer wall of one side of the frame, a first clamping mechanism and an auxiliary clamping mechanism are arranged on the clamping seat, the auxiliary clamping mechanism comprises an auxiliary clamping rod and an auxiliary driving mechanism, the auxiliary clamping rod is rotatably connected to the clamping seat, the auxiliary clamping rod maintains a transmission connection with the auxiliary driving mechanism, the auxiliary clamping rod is driven to rotate by the auxiliary driving mechanism, and abuts against the clamping seat so that the screw rod and the clamping seat remain fixedly connected.

[0008] Preferably, the first clamping mechanism comprises a gas-liquid booster cylinder and a clamping block, the gas-liquid booster cylinder is fixedly mounted on an outer wall of one side of the clamping seat, and the clamping block is fixedly mounted on an output end of the gas-liquid booster cylinder.

[0009] Preferably, a guide rod is fixedly mounted on the outer wall of one side of the clamping seat, a support seat is slidably connected to the guide rod, a locking mechanism is provided on the support seat, and the support seat is fixedly connected to the guide rod via the locking mechanism.

[0010] Preferably, the auxiliary clamping mechanism further includes a connecting rod and a positioning block, one end of the connecting rod is rotatably connected to the auxiliary driving mechanism, the other end of the connecting rod is rotatably connected to the auxiliary clamping rod, and the positioning block is fixedly mounted on the outer wall of the auxiliary clamping rod.

[0011] Preferably, a snap-in groove is provided on the outer wall on one side of the guide rod, and the locking mechanism includes a locking seat and a rotating plate. The locking seat is fixedly installed on the outer wall on one side of the support seat, the guide rod is slidably connected to the locking seat, and the rotating plate is rotatably connected to the locking seat, and an elastic unit is arranged between the rotating plate and the locking seat.

[0012] In the above technical solution, the screw riveting machine provided by the utility model has the following beneficial effects:

[0013] The utility model drives the auxiliary clamping rod to rotate through the auxiliary driving mechanism of the auxiliary clamping mechanism to abut against the screw rod, thereby preliminarily positioning the screw rod, and finally fixing the screw rod and the clamping seat through the first clamping mechanism. After the preliminary positioning and final fixation of the screw rod, it can be more accurately and securely fixed inside the clamping seat, which can prevent the screw rod from being dislocated during the clamping process and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of a three-dimensional structure provided for an embodiment of the utility model;

[0016] Figure 2 A schematic diagram of the installation position of the locking mechanism provided in an embodiment of the utility model;

[0017] Figure 3 A schematic diagram of the specific structure of the locking mechanism provided in an embodiment of the utility model.

[0018] Description of reference numerals:

[0019] 1. Frame; 11. Clamping seat; 12. First clamping mechanism; 121. Gas-liquid booster cylinder; 122. Clamping block; 13. Auxiliary clamping mechanism; 131. Auxiliary clamping rod; 132. Auxiliary driving mechanism; 133. Connecting rod; 134. Positioning block; 14. Guide rod; 141. Clamping groove; 2. Riveting driving cylinder; 3. Support seat; 31. Locking mechanism; 311. Locking seat; 312. Rotating plate; 313. Locking block. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] See also Figure 1 —3. A screw riveting machine comprises a frame 1 and a riveting drive cylinder 2 arranged at one end of the frame 1, a clamping seat 11 is arranged on the outer wall of one side of the frame 1, a first clamping mechanism 12 and an auxiliary clamping mechanism 13 are arranged on the clamping seat 11, the auxiliary clamping mechanism 13 comprises an auxiliary clamping rod 131 and an auxiliary driving mechanism 132, the auxiliary clamping rod 131 is rotatably connected to the clamping seat 11, the auxiliary clamping rod 131 maintains a transmission connection with the auxiliary driving mechanism 132, the auxiliary clamping rod 131 is driven to rotate by the auxiliary driving mechanism 132, and abuts against the clamping seat 11, so that the screw rod and the clamping seat 11 maintain a fixed connection.

[0022] Specifically, Figure 2As shown, a clamping seat 11 is fixedly installed on the outer wall of one side of the frame 1, and an arc groove matching the screw rod is opened on the outer wall of one side of the clamping seat 11, and both sides of the arc groove are inclined surfaces to facilitate the screw rod to be placed in the arc groove. A riveting drive cylinder 2 is arranged on the outer wall of one side of the frame 1, and a positioning piece is fixedly installed on the output end of the riveting drive cylinder 2. The positioning piece can be used to position one end of the screw rod and the bearing and the worm gear, and the positioning piece is driven by the riveting drive cylinder 2 to keep moving, so that the bearing and the worm gear are riveted to the screw rod.

[0023] Furthermore, a first clamping mechanism 12 and an auxiliary clamping mechanism 13 are fixedly installed on one side of the clamping seat 11. The auxiliary clamping mechanism 13 includes an auxiliary clamping rod 131 and an auxiliary driving mechanism 132. The auxiliary clamping rod 131 is rotatably connected to the clamping seat 11. The auxiliary clamping rod 131 maintains a transmission connection with the auxiliary driving mechanism 132. The auxiliary driving mechanism 132 can drive the auxiliary clamping rod 131 to keep rotating, and the rotation of the auxiliary clamping rod 131 abuts against the screw rod, so that part of the screw rod is fixed in the circular groove, and then the screw rod and the circular groove are completely fixed by the first clamping mechanism 12.

[0024] In the utility model, the auxiliary driving mechanism 132 of the auxiliary clamping mechanism 13 drives the auxiliary clamping rod 131 to rotate and abut against the screw rod, thereby preliminarily positioning the screw rod, and finally fixing the screw rod and the clamping seat 11 through the first clamping mechanism 12. After the preliminary positioning and final fixation of the screw rod, it can be more accurately and securely fixed inside the clamping seat 11, which can prevent the screw rod from being misplaced during the clamping process and improve the processing efficiency.

[0025] As an embodiment provided by the utility model, Figure 1 and Figure 2 As shown, the first clamping mechanism 12 includes a gas-liquid booster cylinder 121 and a clamping block 122. The gas-liquid booster cylinder 121 is fixedly installed on the outer wall of one side of the clamping seat 11, and the clamping block 122 is fixedly installed on the output end of the gas-liquid booster cylinder 121. An arc groove matching the diameter of the screw rod is opened on the outer wall of one side of the clamping block 122. The clamping block 122 is driven by the gas-liquid booster cylinder 121 to keep moving and keep in contact with the screw rod, so that the screw rod is fixed in the circular groove.

[0026] like Figure 3As shown, a guide rod 14 is fixedly installed on the outer wall of one side of the clamping seat 11. Preferably, there are two guide rods 14, and the two guide rods 14 are symmetrically distributed on the outer wall of one side of the clamping seat 11. Furthermore, a support seat 3 is slidably connected to the two guide rods 14, and the shape of the support seat 3 is adapted to the circular groove. A locking mechanism 31 is provided on the support seat 3. There are two locking mechanisms 31, and the two locking mechanisms 31 are symmetrically arranged on the outer wall of one side of the support seat 3. The support seat 3 is fixedly connected to the guide rod 14 through the locking mechanism 31.

[0027] As an embodiment provided by the utility model, Figure 2 As shown, it also includes a connecting rod 133 and a positioning block 134. The auxiliary clamping rod 131 is rotatably connected to the outer wall of one side of the clamping seat 11, and the auxiliary driving mechanism 132 is fixedly installed on the outer wall of one side of the clamping seat 11. One end of the connecting rod 133 is rotatably connected to the auxiliary driving mechanism 132, and the other end of the connecting rod 133 is rotatably connected to the auxiliary clamping rod 131. The connecting rod 133 can be driven to keep rotating through the auxiliary driving mechanism 132, and the auxiliary clamping rod 131 can be driven to keep rotating through the rotation of the connecting rod 133, and finally the positioning block 134 installed on the outer wall of the auxiliary clamping rod 131 abuts against the screw rod. Preferably, an arc-shaped notch is opened on the outer wall of the positioning block 134, such as Figure 2 As shown, there are two auxiliary clamping rods 131 , and the two auxiliary clamping rods 131 are connected via a mounting plate.

[0028] As an embodiment provided by the utility model, Figure 3 The cam 312 is provided with a locking plate 311 which is fixed to the locking plate 310 and is secured to the locking plate 312 with the locking plate 313 in a position to engage with the locking plate 310 when the cam 312 is in a position to engage with the locking plate 310.

[0029] The elastic coefficient of the elastic unit mentioned in the article meets the technical requirements of the technical solution of the utility model.

[0030] Those skilled in the art will appreciate that other similar connection methods may also be used to implement the present invention, such as welding, bonding or screwing.

[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A screw riveting machine, comprising a frame (1) and a riveting drive cylinder (2) arranged at one end of the frame (1), characterized in that: A clamping seat (11) is arranged on the outer wall of one side of the frame (1); a first clamping mechanism (12) and an auxiliary clamping mechanism (13) are arranged on the clamping seat (11); the auxiliary clamping mechanism (13) comprises an auxiliary clamping rod (131) and an auxiliary driving mechanism (132); the auxiliary clamping rod (131) is rotatably connected to the clamping seat (11); the auxiliary clamping rod (131) and the auxiliary driving mechanism (132) are in transmission connection; the auxiliary clamping rod (131) is driven to rotate by the auxiliary driving mechanism (132) and abut against the clamping seat (11), so that the screw rod and the clamping seat (11) are fixedly connected.

2. A screw riveting machine according to claim 1, characterized in that: The first clamping mechanism (12) comprises a gas-liquid booster cylinder (121) and a clamping block (122); the gas-liquid booster cylinder (121) is fixedly mounted on an outer wall of one side of the clamping seat (11); and the clamping block (122) is fixedly mounted on an output end of the gas-liquid booster cylinder (121).

3. The screw riveting machine according to claim 1, characterized in that: A guide rod (14) is fixedly mounted on the outer wall of one side of the clamping seat (11); a support seat (3) is slidably connected to the guide rod (14); a locking mechanism (31) is provided on the support seat (3); and the support seat (3) is fixedly connected to the guide rod (14) via the locking mechanism (31).

4. A screw riveting machine according to claim 1, characterized in that: The auxiliary clamping mechanism (13) further comprises a connecting rod (133) and a positioning block (134); one end of the connecting rod (133) is rotatably connected to the auxiliary driving mechanism (132); the other end of the connecting rod (133) is rotatably connected to the auxiliary clamping rod (131); and the positioning block (134) is fixedly mounted on the outer wall of the auxiliary clamping rod (131).

5. The screw riveting machine according to claim 3, characterized in that: A clamping groove (141) is provided on the outer wall of one side of the guide rod (14); the locking mechanism (31) comprises a locking seat (311) and a rotating plate (312); the locking seat (311) is fixedly mounted on the outer wall of one side of the support seat (3); the guide rod (14) is slidably connected to the locking seat (311); the rotating plate (312) is rotatably connected to the locking seat (311); and an elastic unit is provided between the rotating plate (312) and the locking seat (311).

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