A high-precision horizontal broaching machine with a correction mechanism

Abstract

The invention discloses a high-precision horizontal broaching machine with a correction mechanism, comprising a broaching machine, a broaching machine guide connected to the end of the broaching machine, a pneumatic pulling head sleeved on the broaching machine guide, a disc arranged on one side of the end of the broaching machine, a circular hole at the end of the broaching machine coaxially arranged with the disc, a trapezoidal groove arranged on the end surface of the broaching machine, and a linear rail bracket arranged on one side of the disc; a follower is arranged in the disc. The high-precision horizontal broaching machine with a correction mechanism has the following advantages: a spherical seat in the follower rotates on the arc disc, when the workpiece is sleeved on the broach, the inclined surface abuts against one end of the broaching tool, and the broaching tool rotates with the spherical seat, so that the workpiece is in a horizontal state, thereby improving the processing accuracy, and the gourd-shaped clamping block moves up and down through the action of the pulling head cylinder, thereby realizing the fixation and release of the broaching tool, avoiding the need for manual tool feeding and fixation, and improving the automation degree of processing.

Description

Technical Field

[0001] The invention relates to the technical field of broaching machines, in particular to a high-precision horizontal broaching machine with a correction mechanism. Background Art

[0002] A broaching machine is a machine tool that uses a broach as a tool to process through holes, planes and formed surfaces of workpieces. Broaching can achieve higher dimensional accuracy and less surface roughness, and has high productivity. It is suitable for batch and mass production. The rear shank of the broach is clamped on the tool clamp body, and then the tool is fed forward. The main tool clamp of the broaching machine clamps the front shank of the broach and then performs broaching on the workpiece. The clamping and feeding of the broach are mainly performed by manual cooperation. Since the broach is long and heavy, the labor intensity of the staff is increased. When processing the blank, there is a certain inclination on the end face of the blank because it has not been finely processed. During processing, when the workpiece is placed on the broach for hole pulling, its end face is against the positioning block. The reference surface for processing is the end face of the blank. Due to the inclination of the end face, there is a deviation in the later hole pulling, which leads to deviation and even the production of scrapped products. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a high-precision horizontal broaching machine with a correction mechanism, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a high-precision horizontal broaching machine with a correction mechanism, comprising a broaching machine, a broaching machine guide connected to the end of the broaching machine, a pneumatic puller sleeved on the broaching machine guide, a disc arranged on one side of the end of the broaching machine, a circular hole at the end of the broaching machine and the disc arranged coaxially, a trapezoidal groove arranged on the end surface of the broaching machine, and a linear rail bracket arranged on one side of the disc;

[0005] A follower is arranged inside the disc, and the follower is used to fix the workpiece. The follower includes an arc-shaped disc, a spherical seat, a pull sleeve and a locking piece. A spherical seat corresponding to it is arranged inside the arc of the arc-shaped disc, and the spherical seat rotates on the arc-shaped disc. The spherical seat is socketed with the locking piece, and there is a gap of 4-8mm between the locking piece and the arc-shaped disc. The position of the locking piece is used to limit the rotation range of the spherical seat. The pull sleeve is arranged in the through hole of the spherical seat, and its side wings are arranged corresponding to the concave circular groove of the spherical seat.

[0006] The pneumatic slider includes a pneumatic slider base, a tool sleeve, a clamping block, a slider cylinder, a clamping block connecting plate and a cylinder connecting plate. The end face of the pneumatic slider base where the slider cylinder and the cylinder connecting plate are in contact is a plane. A rectangular through hole is provided on the mating side of the pneumatic slider base and the cylinder connecting plate, and the length and width of the through hole are slightly larger than the size of the clamping block. The clamping block is slidably arranged therein. The clamping block is connected to the clamping block connecting plate. Both sides of the clamping block connecting plate are connected to the slider cylinders arranged on both sides of the cylinder connecting plate. The slider cylinder controls the lifting and lowering of the clamping block by telescoping, thereby controlling the up and down movement of the gourd-shaped clamping block, thereby controlling the fixing and release of the broach.

[0007] Furthermore, one end of the broaching machine guide is connected to the telescopic end of a hydraulic cylinder arranged on the broaching machine, and the broaching machine guide and the disc are arranged coaxially.

[0008] Furthermore, a limiting screw is provided at the bottom of the inner hole of the pneumatic puller to limit the puller and improve the convenience of use.

[0009] Furthermore, the linear rail bracket includes a bracket profile, a slide rail and a rodless cylinder. The slide rail and the rodless cylinder are arranged on one side of the bracket profile. A slider is slidably arranged on the slide rail. The rodless cylinder is connected to a tool support arranged on the side of the slider through a fastener. The rodless cylinder is connected to the bracket profile through a flange seat. The movement of the slider is realized by the action of the rodless cylinder, thereby changing the position of the broach.

[0010] Furthermore, the tool support includes a tool placement block, a guide shaft and a broach. The tool placement block is connected to the slider via a fastener. A through hole is provided on the tool placement block. The guide shaft and the broach are provided in the through hole. The guide shaft facilitates ensuring that the tool placement block is in a coaxial position.

[0011] Furthermore, the lower part of the block is in the shape of a gourd-shaped through hole composed of a strip hole and a round hole.

[0012] Furthermore, one end of the broach has multiple rows of broach teeth, and the broach neck at the other end has a diameter that matches the strip hole of the block, and the diameters of the broach handle and the broach rod are larger than the diameter of the strip hole of the block.

[0013] Compared with the prior art, the invention has the following advantages:

[0014] 1. The spherical seat in the follower part rotates on the arc-shaped disc. When the workpiece is sleeved on the broach, the inclined surface abuts against one end of the broaching sleeve, and the broaching sleeve rotates with the spherical seat to avoid inaccurate processing positioning and improve processing accuracy.

[0015] 2. Through the action of the pull head cylinder, the gourd-shaped clamping block moves up and down, thereby fixing and releasing the broach, eliminating the need for manual tool feeding and fixing, and improving the degree of automation of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is the front view of the present invention;

[0018] Figure 3 It is a schematic diagram of the pneumatic pull head structure;

[0019] Figure 4 This is a schematic diagram of the half-section structure of a pneumatic slider;

[0020] Figure 5 It is a schematic diagram of the tool support structure;

[0021] Figure 6 It is a schematic diagram of the linear rail bracket structure;

[0022] Figure 7 It is a schematic diagram of the follower structure;

[0023] Figure 8 It is the front view of the follower;

[0024] Fig. 9 This is a cross-sectional view of the follower.

[0025] In the figure: 1 broaching machine, 11 broaching machine guide, 12 hydraulic cylinder;

[0026] 2 pneumatic slider, 21 pneumatic slider base, 22 tool sleeve, 23 clamping block, 24 slider cylinder, 25 clamping block connecting plate, 26 cylinder connecting plate, 27 limit screw;

[0027] 3 discs;

[0028] 4 linear rail bracket, 41 bracket profile, 42 slide rail, 43 rodless cylinder;

[0029] 5 follower, 51 arc-shaped disc, 52 ball seat, 53 pull sleeve, 54 locking member;

[0030] 6 tool support, 61 tool placement block, 62 guide shaft, 63 broach. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, if the orientation description is involved, for example, the orientation or position relationship indicated by "up", "down", "front", "back", "left", "right", etc. is based on the attached Figure 2 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. When a feature is referred to as being "disposed", "fixed" or "connected" to another feature, it can be directly disposed, fixed or connected to the other feature, or indirectly disposed, fixed or connected to the other feature.

[0033] See also Figure 1 and Figure 2 The present invention provides a technical solution: a high-precision horizontal broaching machine with a correction mechanism, comprising a broaching machine 1, a broaching machine guide 11 is connected to the end of the broaching machine 1, a pneumatic pull head 2 is sleeved on the broaching machine guide 11, a disc 3 is arranged on one side of the end of the broaching machine 1, a circular hole at the end of the broaching machine 1 is arranged coaxially with the disc 3, a trapezoidal groove is arranged on the end surface of the broaching machine 1, a linear rail bracket 4 is arranged on one side of the disc 3, one end of the broaching machine guide 11 is connected to the telescopic end of a hydraulic cylinder 12 arranged on the broaching machine 1, the broaching machine guide 11 and the disc 3 are arranged coaxially, and the action of the hydraulic cylinder 12 drives the broaching machine guide 11 to move forward and backward, thereby realizing material unloading.

[0034] See also Figure 7 , Figure 8 and Fig. 9 A follower 5 is arranged in the disc 3, and the follower 5 is used to fix the workpiece and plays a fixing role. The follower 5 includes an arc-shaped disc 51, a spherical seat 52, a pull sleeve 53 and a locking piece 54. A spherical seat 52 corresponding to it is arranged in the arc of the arc-shaped disc 51, and the spherical seat 52 rotates in the arc-shaped disc 51. The spherical seat 52 is socketed with the locking piece 54, and there is a gap of 4-8mm between the locking piece 54 and the arc-shaped disc 51. The position of the locking piece 54 is used to limit the rotation range of the spherical seat 52 to improve the convenience of use. The pull sleeve 53 is arranged in the through hole of the spherical seat 52 and its side wings are arranged corresponding to the concave circular groove of the spherical seat 52.

[0035] See also Figure 3 and Figure 4The pneumatic slider 2 includes a pneumatic slider base 21, a tool sleeve 22, a clamping block 23, a slider cylinder 24, a clamping block connecting plate 25 and a cylinder connecting plate 26. The end face of the pneumatic slider base 21 in contact with the slider cylinder 24 and the cylinder connecting plate 26 is a plane, and a side that cooperates with the cylinder connecting plate 26 is provided with a rectangular through hole, the length and width of which are slightly larger than the size of the clamping block 23. The lower part of the clamping block 23 is a gourd-shaped through hole composed of a strip hole and a round hole. The clamping block 2 3 is slidably arranged therein, the block 23 is connected to the block connecting plate 25, the two sides of the block connecting plate 25 are connected to the pull head cylinder 24 arranged on the two sides of the cylinder connecting plate 26, the pull head cylinder 24 controls the lifting and lowering of the block 23 by telescoping, thereby controlling the up and down movement of the gourd-shaped block 23, thereby controlling the fixing and release of the broach, and the bottom of the inner hole of the pneumatic pull head base 21 is provided with a limit screw 27 to limit the broach and improve the convenience of use.

[0036] See also Figure 6 The linear rail bracket 4 includes a bracket profile 41, a slide rail 42 and a rodless cylinder 43. The slide rail 42 and the rodless cylinder 43 are arranged on one side of the bracket profile 41. A slider is slidably arranged on the slide rail 42. The rodless cylinder 43 is connected to the tool support 6 arranged on the side of the slider through a fastener. The rodless cylinder 43 is connected to the bracket profile 41 through a flange seat. The movement of the slider is realized by the action of the rodless cylinder 43, thereby changing the position of the broach.

[0037] See also Figure 5 The tool support 6 includes a tool placement block 61, a guide shaft 62 and a broach 63. The tool placement block 61 is connected to the slider through a fastener. The tool placement block 61 arranged on the side close to the disc 3 plays a role in fixing the tool to prevent the tool from being cheap. A through hole is provided on the tool placement block 61, and a guide shaft 62 and a broach 63 are provided in the through hole. The guide shaft 62 is convenient for ensuring that the tool placement block 61 is in a coaxial position. One end of the broach 63 is a plurality of rows of broach teeth, and the broach neck at the other end is a broach neck with a diameter that matches the strip hole of the block 23, and the diameter of the broach handle and the broach rod is larger than the diameter of the strip hole of the block 23.

[0038] When in use: the rodless cylinder 43 is started and moves to the left, so that the broach 63 is away from the disc 3, and the workpiece is sleeved on the broach 63. The rodless cylinder 43 is started and moves to the right, so that the broach 63 moves to the right. When the broach passes through the pull sleeve 53, it goes deep into the inside of the pneumatic pull head 2 and passes through the circular through hole of the block 23. At this time, the workpiece moves with it, and one side of the workpiece contacts the pull sleeve 53. When it moves to the point where the handle of the broach contacts the limit screw 27, the pull head cylinder 24 moves downward, and the block 23 The strip-shaped through hole on it is clamped with the neck of the broach, and at this time the hydraulic cylinder 12 is started, driving the broach 63 to work, and a hole is drawn in the workpiece. The workpiece is subjected to force and contacts the broaching sleeve 53. At this time, the spherical seat 52 rotates in the arc-shaped disc 51 to ensure the accuracy of the hole drawn. The hydraulic cylinder 12 moves to the right, and the broach 63 moves to the right, thereby pulling the broach 63 out to the tool placement block 61, thereby completing the broaching. After the broach 63 is pulled out, the workpiece automatically falls into the external material receiving device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision horizontal broaching machine with a correction mechanism, comprising a broaching machine (1), wherein the end of the broaching machine (1) is connected to a broaching machine guide (11), characterized in that: The broaching machine guide (11) is sleeved with a pneumatic pull head (2), a disc (3) is provided on one side of the end of the broaching machine (1), and a linear rail bracket (4) is provided on one side of the disc (3); A follower (5) is arranged inside the circular disc (3), and the follower (5) comprises an arc-shaped circular disc (51), a spherical seat (52), a pull sleeve (53) and a locking piece (54); a spherical seat (52) corresponding to the arc-shaped circular disc (51) is arranged inside the arc-shaped circular disc (51); the spherical seat (52) and the locking piece (54) are sleeved together, and a gap of 4-8 mm exists between the locking piece (54) and the arc-shaped circular disc (51); the pull sleeve (53) is arranged in the through hole of the spherical seat (52) and its side wings are arranged corresponding to the concave circular groove of the spherical seat (52); The pneumatic slider (2) comprises a pneumatic slider base (21), a tool sleeve (22), a clamping block (23), a slider cylinder (24), a clamping block connecting plate (25) and a cylinder connecting plate (26). The end surface of the pneumatic slider base (21) in contact with the slider cylinder (24) and the cylinder connecting plate (26) is one surface. A rectangular through hole is provided on a surface where the pneumatic slider base (21) and the cylinder connecting plate (26) cooperate. The length and width of the rectangular through hole are slightly larger than the size of the clamping block (23). The clamping block (23) is slidably arranged in the rectangular through hole. The clamping block (23) is connected to the clamping block connecting plate (25). The two sides of the clamping block connecting plate (25) are connected to the slider cylinder (24) arranged on the two sides of the cylinder connecting plate (26).

2. A high-precision horizontal broaching machine with a correction mechanism according to claim 1, characterized in that: One end of the broaching machine guide (11) is connected to the telescopic end of a hydraulic cylinder (12) provided on the broaching machine (1), and the broaching machine guide (11) and the disc (3) are coaxially arranged.

3. The high-precision horizontal broaching machine with a correction mechanism according to claim 1, characterized in that: A limiting screw (27) is provided at the bottom of the inner hole of the pneumatic slider base (21).

4. The high-precision horizontal broaching machine with a correction mechanism according to claim 1, characterized in that: The linear rail bracket (4) comprises a bracket profile (41), a slide rail (42) and a rodless cylinder (43); the slide rail (42) and the rodless cylinder (43) are arranged on one side of the bracket profile (41); a slider is slidably arranged on the slide rail (42); the rodless cylinder (43) is connected to a tool support (6) arranged on the side of the slider via a fastener; and the rodless cylinder (43) is connected to the bracket profile (41) via a flange seat.

5. The high-precision horizontal broaching machine with a correction mechanism according to claim 4, characterized in that: The tool support (6) comprises a tool placement block (61), a guide shaft (62) and a broach (63); the tool placement block (61) is connected to a slide block via a fastener; a through hole is provided on the tool placement block (61); and the guide shaft (62) and the broach (63) are provided in the through hole.

6. The high-precision horizontal broaching machine with a correction mechanism according to claim 1, characterized in that: The lower part of the clamping block (23) is in the shape of a gourd-shaped through hole composed of a strip hole and a round hole.

7. The high-precision horizontal broaching machine with a correction mechanism according to claim 5, characterized in that: One end of the broach (63) is provided with multiple rows of broach teeth, and the broach neck at the other end has a diameter matching the strip hole of the clamping block (23), and the diameters of the broach handle and the broach rod are larger than the diameter of the strip hole of the clamping block (23).

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