Center hole drilling equipment for end face of brake cam shaft

Abstract

The utility model discloses equipment for drilling a center hole in an end face of a brake camshaft, which relates to the technical field of end face drilling and comprises a base, a supporting device for lifting the camshaft is arranged on the upper surface of the base and comprises a supporting frame, a hoop is fixedly mounted at the top end of the supporting frame, and the hoop is fixedly connected with the base. Limiting devices connected with the cam shaft in a clamped mode are arranged on the upper surface of the base and located at the two ends of the supporting device, each limiting device comprises a clamping plate, and the other clamping plate is slidably connected with the base. According to the equipment for drilling the center hole in the end face of the brake cam shaft, the supporting device and the two limiting devices are arranged on the base, the supporting device lifts and fixes the brake cam shaft so that the brake cam shaft can not move front and back or deflect left and right, and the limiting devices are connected with the two ends of the brake cam shaft in an inserted mode; and under the action of splines and arc-shaped surfaces at the two ends of the brake camshaft, the brake camshaft is limited, so that the brake camshaft cannot rotate during punching.

Description

Technical Field

[0001] The utility model relates to the technical field of end face drilling, in particular to a device for drilling a center hole on the end face of a brake cam shaft. Background Art

[0002] Publication number: CN213858101U, name: An improved tool for processing the center holes at both ends of a brake camshaft part, which discloses: a sliding mechanism, a clamping device, a positioning mechanism and a drilling mechanism, wherein the clamping device is used to clamp the brake camshaft, and the drilling mechanism includes two, two drilling mechanisms are arranged on both sides of the sliding mechanism, the sliding mechanism is used to drive the clamping device to slide left and right on the horizontal plane, the positioning mechanism is used to clamp and fix the cam of the brake camshaft through a positioning block, and by arranging a dovetail groove structure in the bottom plate and the slider, the brake camshaft can move linearly on the bottom plate guide rail, which is convenient for processing the center holes at both ends of the brake camshaft, and the brake camshaft is positioned and clamped by the clamping device, and then the brake camshaft is positioned by the positioning mechanism, so that it will not rotate with the drill bit during the drilling process;

[0003] The above disclosed content positions and clamps the brake camshaft through a clamping device, and the clamping device is a slidable connection between an orienting block and a supporting guide column to achieve the limitation of the brake camshaft. However, it is only disclosed that the orienting block is slidably connected with the supporting guide column, and there is no limiting device between them. When the brake camshaft is limited, the reaction generated by the drilling drives the brake camshaft to rotate, which will drive the orienting block to slide in the opposite direction, thereby failing to ensure stable limitation. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device for drilling a center hole on the end face of a brake camshaft, which solves the problem that the brake camshaft is positioned and clamped by a clamping device in the above-mentioned disclosure, and the clamping device is a directional block slidably connected with a supporting guide column to achieve the limitation of the brake camshaft. However, only the directional block and the supporting guide column are disclosed to be slidably connected, and there is no limiting device between them. When the brake camshaft is limited, the reaction generated by the drilling drives the brake camshaft to rotate, which will drive the directional block to slide in the opposite direction, thereby failing to ensure stable limiting.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a device for drilling a center hole on the end face of a brake camshaft, comprising a base, the upper surface of the base is provided with a supporting device for lifting the camshaft, the supporting device comprises a supporting frame, a clamp is fixedly installed on the top of the supporting frame, and the upper surface of the base and both ends of the supporting device are provided with limiting devices that are clamped with the camshaft, the limiting device comprises a clamping plate, one of the clamping plates is fixedly connected to the base, and the other of the clamping plates is slidably connected to the base, and both ends of the base are slidably provided with a punching device for drilling holes in the camshaft.

[0006] Preferably, the clamp comprises two semicircular clamps, one ends of the two clamps are rotatably connected to each other by a hinge, the other ends of the two clamps are fixedly connected by a bolt assembly, and the inner walls of the two clamps are fixedly connected with a cushion layer.

[0007] Preferably, a supporting leg is fixedly connected to the peripheral side of the other clamping plate, a first T-shaped block is fixedly connected to the bottom end of the supporting leg, a first T-shaped slot matching the first T-shaped block is provided on the upper surface of the base, a T-shaped rod is fixedly connected to the side of the supporting leg, and a second T-shaped slot matching the T-shaped rod is provided on the side of the supporting frame.

[0008] Preferably, the punching device comprises a drill, the end of the drill is fixedly connected to a mounting plate, a connecting rod slide is fixed to the side of the mounting plate, and a slide groove matching the slide is formed at the end of the base.

[0009] Beneficial Effects

[0010] The utility model provides a device for drilling a center hole on the end face of a brake camshaft. Compared with the prior art, it has the following beneficial effects:

[0011] (1) The device for drilling a center hole on the end face of the brake camshaft has a supporting device and two limiting devices arranged on a base. The supporting device lifts and fixes the brake camshaft so that it does not move forward and backward or deflect left and right. The limiting device is plugged into the two ends of the brake camshaft. Under the action of the splines and arc surfaces at the two ends of the brake camshaft, the brake camshaft is limited so that it does not rotate when drilling.

[0012] (2) The device for drilling a center hole on the end face of the brake camshaft has a punching device slidably arranged at both ends of the base, so that when punching the brake camshaft, the punching devices arranged at both ends can punch holes at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is an exploded schematic diagram of the limit device and the base connection structure of the utility model;

[0015] Figure 3 It is an exploded schematic diagram of the connection structure of the base and the punching device of the utility model;

[0016] Figure 4 for Figure 3 A schematic diagram of the enlarged structure in the middle.

[0017] In the figure: 1, base; 11, first T-slot; 12, slide groove; 2, support device; 21, clamp; 211, cushion layer; 22, support frame; 221, second T-slot; 3, limit device; 31, clamping plate; 32, support leg; 321, first T-block; 33, T-rod; 4, punching device; 41, mounting plate; 42, drilling rig; 43, slide rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 The utility model provides a technical solution: a device for drilling a center hole on the end face of a brake camshaft, comprising a base 1, a support device 2 for lifting the camshaft is arranged on the upper surface of the base 1, the support device 2 comprises a support frame 22, a clamp 21 is fixedly installed on the top of the support frame 22, and a limit device 3 for clamping with the camshaft is arranged on the upper surface of the base 1 and at both ends of the support device 2, the limit device 3 comprises a clamping plate 31, one of the clamping plates 31 is fixedly connected to the base 1, and the other clamping plate 31 is slidably connected to the base 1, and a punching device 4 for drilling holes in the camshaft is slidably arranged at both ends of the base 1.

[0020] Specifically, the brake camshaft is placed on the base 1 for punching operation, wherein the support device 2 limits and fixes the brake camshaft to prevent the brake camshaft from sliding forward and backward and deflecting left and right. When in use, the clamp 21 is sleeved on the circumference of the brake camshaft and clamped to fix the position of the brake camshaft. The clamping plate 31 on the limiting device 3 is clamped with the two ends of the brake camshaft. The brake camshaft is limited by the splines and arc surfaces at both ends of the brake camshaft so that it will not rotate during punching. The punching device 4 punches holes at the end of the brake camshaft.

[0021] The clamp 21 includes two semicircular clamps, one end of the two clamps are rotatably connected to each other through a hinge, and the other end of the two clamps are fixedly connected through a bolt assembly. The inner walls of the two clamps are fixedly connected with a cushion layer 211.

[0022] Specifically, the bolt assembly includes a screw rod and a nut. The clamp 21 fixes the brake camshaft by rotating and tightening the nut.

[0023] A supporting leg 32 is fixedly connected to the peripheral side of another clamping plate 31, a first T-shaped block 321 is fixedly connected to the bottom end of the supporting leg 32, a first T-shaped slot 11 matching the first T-shaped block 321 is provided on the upper surface of the base 1, a T-shaped rod 33 is fixedly connected to the side of the supporting leg 32, and a second T-shaped slot 221 matching the T-shaped rod 33 is provided on the side of the supporting frame 22.

[0024] Specifically, the clamping plate 31 slides with the cooperation of the first T-shaped block 321 and the first T-shaped slot 11, so that when installing and disassembling the brake camshaft, the clamping plate 31 can be moved away from the brake camshaft, thereby facilitating the disassembly and installation of the brake camshaft, and with the cooperation of the T-shaped rod 33 and the second T-shaped slot 221, the clamping plate 31 is stably supported, making its sliding more stable.

[0025] The punching device 4 comprises a drill 42 , the end of which is fixedly connected to a mounting plate 41 , a connecting rod slide 43 is fixed to the side of the mounting plate 41 , and a slide groove 12 matching the slide 43 is provided at the end of the base 1 .

[0026] Specifically, the slide rod 43 cooperates with the slide groove 12 to guide the sliding of the mounting plate 41 so that the mounting plate 41 can slide stably. The drill 42 is a prior art and is used to drill holes in the brake camshaft.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] During operation, the brake camshaft only needs to be inserted into the clamp 21, and one end of the brake camshaft is inserted into the clamping plate 31 fixedly connected to the base 1. Then, the bolt assembly is rotated to fix the brake camshaft with the clamp 21. Then, another clamping plate 31 is slid to clamp it with the other end of the brake camshaft. Finally, the drill 42 is started, the mounting plate 41 is slid, and the drill 42 is driven close to the brake camshaft to drill holes in the brake camshaft.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] 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 device for drilling a center hole on the end face of a brake camshaft, characterized in that: It comprises a base (1), the upper surface of the base (1) being provided with a supporting device (2) for lifting the camshaft; The supporting device (2) comprises a supporting frame (22), and a clamp (21) is fixedly mounted on the top end of the supporting frame (22); The upper surface of the base (1) and both ends of the support device (2) are provided with limiting devices (3) that are engaged with the camshaft; The limiting device (3) comprises a clamping plate (31), wherein one of the clamping plates (31) is fixedly connected to the base (1), and the other of the clamping plates (31) is slidably connected to the base (1); Both ends of the base (1) are slidably provided with a punching device (4) for drilling holes in the camshaft.

2. The device for drilling a center hole on the end face of a brake camshaft according to claim 1, characterized in that: The clamp (21) comprises two semicircular clamping rings, one end of the two clamping rings are rotatably connected to each other via a hinge, the other ends of the two clamping rings are fixedly connected via a bolt assembly, and the inner walls of the two clamping rings are fixedly connected with a cushion layer (211).

3. The device for drilling a center hole on the end face of a brake camshaft according to claim 1, characterized in that: A supporting leg (32) is fixedly connected to the circumferential side of the other clamping plate (31); a first T-shaped block (321) is fixedly connected to the bottom end of the supporting leg (32); a first T-shaped slot (11) matching the first T-shaped block (321) is provided on the upper surface of the base (1); a T-shaped rod (33) is fixedly connected to the side of the supporting leg (32); and a second T-shaped slot (221) matching the T-shaped rod (33) is provided on the side of the supporting frame (22).

4. The device for drilling a center hole on the end face of a brake camshaft according to claim 1, characterized in that: The punching device (4) comprises a drill (42), the end of the drill (42) is fixedly connected to a mounting plate (41), a connecting rod slide bar (43) is fixed to the side of the mounting plate (41), and a slide groove (12) matching the slide bar (43) is provided at the end of the base (1).

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